In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow A static code analysis tool flagged the possibility of buffer overflow when using copy_from_user() for a debugfs entry. Currently, it is possible that copy_from_user() copies more bytes than what would fit in the mybuf char array. Add a min() restriction check between sizeof(mybuf) - 1 and nbytes passed from the userspace buffer to protect against buffer overflow.

The CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1771078945 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: pid: take a reference when     initializing `cad_pid` During boot, kernel_init_freeable() initializes `cad_pid` to the init task's struct     pid. Later on, we may change `cad_pid` via a sysctl, and when this happens proc_do_cad_pid() will     increment the refcount on the new pid via get_pid(), and will decrement the refcount on the old pid via     put_pid(). As we never called get_pid() when we initialized `cad_pid`, we decrement a reference we never     incremented, can therefore free the init task's struct pid early. As there can be dangling references to     the struct pid, we can later encounter a use-after-free (e.g. when delivering signals). This was spotted     when fuzzing v5.13-rc3 with Syzkaller, but seems to have been around since the conversion of `cad_pid` to     struct pid in commit 9ec52099e4b8 ([PATCH] replace cad_pid by a struct pid) from the pre-KASAN stone age     of v2.6.19. Fix this by getting a reference to the init task's struct pid when we assign it to `cad_pid`.
    Full KASAN splat below. ================================================================== BUG: KASAN:
    use-after-free in ns_of_pid include/linux/pid.h:153 [inline] BUG: KASAN: use-after-free in     task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 Read of size 4 at addr ffff23794dda0004 by task syz-     executor.0/273 CPU: 1 PID: 273 Comm: syz-executor.0 Not tainted 5.12.0-00001-g9aef892b2d15 #1 Hardware     name: linux,dummy-virt (DT) Call trace: ns_of_pid include/linux/pid.h:153 [inline]     task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 do_notify_parent+0x308/0xe60 kernel/signal.c:1950     exit_notify kernel/exit.c:682 [inline] do_exit+0x2334/0x2bd0 kernel/exit.c:845 do_group_exit+0x108/0x2c8     kernel/exit.c:922 get_signal+0x4e4/0x2a88 kernel/signal.c:2781 do_signal arch/arm64/kernel/signal.c:882     [inline] do_notify_resume+0x300/0x970 arch/arm64/kernel/signal.c:936 work_pending+0xc/0x2dc Allocated by     task 0: slab_post_alloc_hook+0x50/0x5c0 mm/slab.h:516 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc     mm/slub.c:2915 [inline] kmem_cache_alloc+0x1f4/0x4c0 mm/slub.c:2920 alloc_pid+0xdc/0xc00 kernel/pid.c:180     copy_process+0x2794/0x5e18 kernel/fork.c:2129 kernel_clone+0x194/0x13c8 kernel/fork.c:2500     kernel_thread+0xd4/0x110 kernel/fork.c:2552 rest_init+0x44/0x4a0 init/main.c:687     arch_call_rest_init+0x1c/0x28 start_kernel+0x520/0x554 init/main.c:1064 0x0 Freed by task 270:
    slab_free_hook mm/slub.c:1562 [inline] slab_free_freelist_hook+0x98/0x260 mm/slub.c:1600 slab_free     mm/slub.c:3161 [inline] kmem_cache_free+0x224/0x8e0 mm/slub.c:3177 put_pid.part.4+0xe0/0x1a8     kernel/pid.c:114 put_pid+0x30/0x48 kernel/pid.c:109 proc_do_cad_pid+0x190/0x1b0 kernel/sysctl.c:1401     proc_sys_call_handler+0x338/0x4b0 fs/proc/proc_sysctl.c:591 proc_sys_write+0x34/0x48     fs/proc/proc_sysctl.c:617 call_write_iter include/linux/fs.h:1977 [inline] new_sync_write+0x3ac/0x510     fs/read_write.c:518 vfs_write fs/read_write.c:605 [inline] vfs_write+0x9c4/0x1018 fs/read_write.c:585     ksys_write+0x124/0x240 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write     fs/read_write.c:667 [inline] __arm64_sys_write+0x78/0xb0 fs/read_write.c:667 __invoke_syscall     arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]     el0_svc_common.constprop.1+0x16c/0x388 arch/arm64/kernel/syscall.c:129 do_el0_svc+0xf8/0x150     arch/arm64/kernel/syscall.c:168 el0_svc+0x28/0x38 arch/arm64/kernel/entry-common.c:416     el0_sync_handler+0x134/0x180 arch/arm64/kernel/entry-common.c:432 el0_sync+0x154/0x180     arch/arm64/kernel/entry.S:701 The buggy address belongs to the object at ffff23794dda0000 which belongs to     the cache pid of size 224 The buggy address is located 4 bytes inside of 224-byte region [ff
    ---truncated--- (CVE-2021-47118)

  - In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Don't generate an interrupt     on bus reset Now that the i2c-i801 driver supports interrupts, setting the KILL bit in a attempt to     recover from a timed out transaction triggers an interrupt. Unfortunately, the interrupt handler     (i801_isr) is not prepared for this situation and will try to process the interrupt as if it was signaling     the end of a successful transaction. In the case of a block transaction, this can result in an out-of-     range memory access. This condition was reproduced several times by syzbot:
    https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e     https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e     https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e     https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb     https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a     https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79 So disable interrupts while trying to reset     the bus. Interrupts will be enabled again for the following transaction. (CVE-2021-47153)

  - In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data     Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer     that gets written out. If this bit is set using commands like sg_write_same --ndob we will crash in     target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because     its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support     it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal     WRITE SAME with no data buffer. (CVE-2022-21546)

  - In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: IPoIB, Block PKEY     interfaces with less rx queues than parent A user is able to configure an arbitrary number of rx queues     when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child     interface uses the parent receive channels. Although the child shares the parent's receive channels, the     number of rx queues is important for the channel_stats array: the parent's rx channel index is used to     access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size     for the counting to work correctly and to prevent out of bound accesses. This patch checks for the     mentioned scenario and returns an error when trying to create the interface. The error is propagated to     the user. (CVE-2022-48883)

  - In the Linux kernel, the following vulnerability has been resolved: ath9k_htc: fix potential out of bounds     access with invalid rxstatus->rs_keyix The rxstatus->rs_keyix eventually gets passed to test_bit() so we     need to ensure that it is within the bitmap. drivers/net/wireless/ath/ath9k/common.c:46     ath9k_cmn_rx_accept() error: passing untrusted data 'rx_stats->rs_keyix' to 'test_bit()' (CVE-2022-49503)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The CentOS Linux 8.5 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.5:CLSA-2026:1771077729 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: pid: take a reference when     initializing `cad_pid` During boot, kernel_init_freeable() initializes `cad_pid` to the init task's struct     pid. Later on, we may change `cad_pid` via a sysctl, and when this happens proc_do_cad_pid() will     increment the refcount on the new pid via get_pid(), and will decrement the refcount on the old pid via     put_pid(). As we never called get_pid() when we initialized `cad_pid`, we decrement a reference we never     incremented, can therefore free the init task's struct pid early. As there can be dangling references to     the struct pid, we can later encounter a use-after-free (e.g. when delivering signals). This was spotted     when fuzzing v5.13-rc3 with Syzkaller, but seems to have been around since the conversion of `cad_pid` to     struct pid in commit 9ec52099e4b8 ([PATCH] replace cad_pid by a struct pid) from the pre-KASAN stone age     of v2.6.19. Fix this by getting a reference to the init task's struct pid when we assign it to `cad_pid`.
    Full KASAN splat below. ================================================================== BUG: KASAN:
    use-after-free in ns_of_pid include/linux/pid.h:153 [inline] BUG: KASAN: use-after-free in     task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 Read of size 4 at addr ffff23794dda0004 by task syz-     executor.0/273 CPU: 1 PID: 273 Comm: syz-executor.0 Not tainted 5.12.0-00001-g9aef892b2d15 #1 Hardware     name: linux,dummy-virt (DT) Call trace: ns_of_pid include/linux/pid.h:153 [inline]     task_active_pid_ns+0xc0/0xc8 kernel/pid.c:509 do_notify_parent+0x308/0xe60 kernel/signal.c:1950     exit_notify kernel/exit.c:682 [inline] do_exit+0x2334/0x2bd0 kernel/exit.c:845 do_group_exit+0x108/0x2c8     kernel/exit.c:922 get_signal+0x4e4/0x2a88 kernel/signal.c:2781 do_signal arch/arm64/kernel/signal.c:882     [inline] do_notify_resume+0x300/0x970 arch/arm64/kernel/signal.c:936 work_pending+0xc/0x2dc Allocated by     task 0: slab_post_alloc_hook+0x50/0x5c0 mm/slab.h:516 slab_alloc_node mm/slub.c:2907 [inline] slab_alloc     mm/slub.c:2915 [inline] kmem_cache_alloc+0x1f4/0x4c0 mm/slub.c:2920 alloc_pid+0xdc/0xc00 kernel/pid.c:180     copy_process+0x2794/0x5e18 kernel/fork.c:2129 kernel_clone+0x194/0x13c8 kernel/fork.c:2500     kernel_thread+0xd4/0x110 kernel/fork.c:2552 rest_init+0x44/0x4a0 init/main.c:687     arch_call_rest_init+0x1c/0x28 start_kernel+0x520/0x554 init/main.c:1064 0x0 Freed by task 270:
    slab_free_hook mm/slub.c:1562 [inline] slab_free_freelist_hook+0x98/0x260 mm/slub.c:1600 slab_free     mm/slub.c:3161 [inline] kmem_cache_free+0x224/0x8e0 mm/slub.c:3177 put_pid.part.4+0xe0/0x1a8     kernel/pid.c:114 put_pid+0x30/0x48 kernel/pid.c:109 proc_do_cad_pid+0x190/0x1b0 kernel/sysctl.c:1401     proc_sys_call_handler+0x338/0x4b0 fs/proc/proc_sysctl.c:591 proc_sys_write+0x34/0x48     fs/proc/proc_sysctl.c:617 call_write_iter include/linux/fs.h:1977 [inline] new_sync_write+0x3ac/0x510     fs/read_write.c:518 vfs_write fs/read_write.c:605 [inline] vfs_write+0x9c4/0x1018 fs/read_write.c:585     ksys_write+0x124/0x240 fs/read_write.c:658 __do_sys_write fs/read_write.c:670 [inline] __se_sys_write     fs/read_write.c:667 [inline] __arm64_sys_write+0x78/0xb0 fs/read_write.c:667 __invoke_syscall     arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall arch/arm64/kernel/syscall.c:49 [inline]     el0_svc_common.constprop.1+0x16c/0x388 arch/arm64/kernel/syscall.c:129 do_el0_svc+0xf8/0x150     arch/arm64/kernel/syscall.c:168 el0_svc+0x28/0x38 arch/arm64/kernel/entry-common.c:416     el0_sync_handler+0x134/0x180 arch/arm64/kernel/entry-common.c:432 el0_sync+0x154/0x180     arch/arm64/kernel/entry.S:701 The buggy address belongs to the object at ffff23794dda0000 which belongs to     the cache pid of size 224 The buggy address is located 4 bytes inside of 224-byte region [ff
    ---truncated--- (CVE-2021-47118)

  - In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Don't generate an interrupt     on bus reset Now that the i2c-i801 driver supports interrupts, setting the KILL bit in a attempt to     recover from a timed out transaction triggers an interrupt. Unfortunately, the interrupt handler     (i801_isr) is not prepared for this situation and will try to process the interrupt as if it was signaling     the end of a successful transaction. In the case of a block transaction, this can result in an out-of-     range memory access. This condition was reproduced several times by syzbot:
    https://syzkaller.appspot.com/bug?extid=ed71512d469895b5b34e     https://syzkaller.appspot.com/bug?extid=8c8dedc0ba9e03f6c79e     https://syzkaller.appspot.com/bug?extid=c8ff0b6d6c73d81b610e     https://syzkaller.appspot.com/bug?extid=33f6c360821c399d69eb     https://syzkaller.appspot.com/bug?extid=be15dc0b1933f04b043a     https://syzkaller.appspot.com/bug?extid=b4d3fd1dfd53e90afd79 So disable interrupts while trying to reset     the bus. Interrupts will be enabled again for the following transaction. (CVE-2021-47153)

  - In the Linux kernel, the following vulnerability has been resolved: scsi: target: Fix WRITE_SAME No Data     Buffer crash In newer version of the SBC specs, we have a NDOB bit that indicates there is no data buffer     that gets written out. If this bit is set using commands like sg_write_same --ndob we will crash in     target_core_iblock/file's execute_write_same handlers when we go to access the se_cmd->t_data_sg because     its NULL. This patch adds a check for the NDOB bit in the common WRITE SAME code because we don't support     it. And, it adds a check for zero SG elements in each handler in case the initiator tries to send a normal     WRITE SAME with no data buffer. (CVE-2022-21546)

  - In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: IPoIB, Block PKEY     interfaces with less rx queues than parent A user is able to configure an arbitrary number of rx queues     when creating an interface via netlink. This doesn't work for child PKEY interfaces because the child     interface uses the parent receive channels. Although the child shares the parent's receive channels, the     number of rx queues is important for the channel_stats array: the parent's rx channel index is used to     access the child's channel_stats. So the array has to be at least as large as the parent's rx queue size     for the counting to work correctly and to prevent out of bound accesses. This patch checks for the     mentioned scenario and returns an error when trying to create the interface. The error is propagated to     the user. (CVE-2022-48883)

  - In the Linux kernel, the following vulnerability has been resolved: be2net: Fix buffer overflow in     be_get_module_eeprom be_cmd_read_port_transceiver_data assumes that it is given a buffer that is at least     PAGE_DATA_LEN long, or twice that if the module supports SFF 8472. However, this is not always the case.
    Fix this by passing the desired offset and length to be_cmd_read_port_transceiver_data so that we only     copy the bytes once. (CVE-2022-49581)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1771239384 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in     bfq_exit_icq_bfqq Commit 64dc8c732f5c (block, bfq: fix possible uaf for 'bfqq->bic') will access     'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call     bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().
    (CVE-2022-50329)

  - In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix possible uaf for     'bfqq->bic' Our test report a uaf for 'bfqq->bic' in 5.10:
    ================================================================== BUG: KASAN: use-after-free in     bfq_select_queue+0x378/0xa30 CPU: 6 PID: 2318352 Comm: fsstress Kdump: loaded Not tainted     5.10.0-60.18.0.50.h602.kasan.eulerosv2r11.x86_64 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996),     BIOS rel-1.12.1-0-ga5cab58-20220320_160524-szxrtosci10000 04/01/2014 Call Trace:
    bfq_select_queue+0x378/0xa30 bfq_dispatch_request+0xe8/0x130 blk_mq_do_dispatch_sched+0x62/0xb0
    __blk_mq_sched_dispatch_requests+0x215/0x2a0 blk_mq_sched_dispatch_requests+0x8f/0xd0
    __blk_mq_run_hw_queue+0x98/0x180 __blk_mq_delay_run_hw_queue+0x22b/0x240 blk_mq_run_hw_queue+0xe3/0x190     blk_mq_sched_insert_requests+0x107/0x200 blk_mq_flush_plug_list+0x26e/0x3c0 blk_finish_plug+0x63/0x90
    __iomap_dio_rw+0x7b5/0x910 iomap_dio_rw+0x36/0x80 ext4_dio_read_iter+0x146/0x190 [ext4]     ext4_file_read_iter+0x1e2/0x230 [ext4] new_sync_read+0x29f/0x400 vfs_read+0x24e/0x2d0 ksys_read+0xd5/0x1b0     do_syscall_64+0x33/0x40 entry_SYSCALL_64_after_hwframe+0x61/0xc6 Commit 3bc5e683c67d (bfq: Split shared     queues on move between cgroups) changes that move process to a new cgroup will allocate a new bfqq to     use, however, the old bfqq and new bfqq can point to the same bic: 1) Initial state, two process with io     in the same cgroup. Process 1 Process 2 (BIC1) (BIC2) |  |  | | | | V | V | bfqq1 bfqq2 2) bfqq1 is     merged to bfqq2. Process 1 Process 2 (BIC1) (BIC2) | | \-------------\| V bfqq1 bfqq2(coop) 3) Process 1     exit, then issue new io(denoce IOA) from Process 2. (BIC2) |  | | V | bfqq2(coop) 4) Before IOA is     completed, move Process 2 to another cgroup and issue io. Process 2 (BIC2)  |\--------------\ | V bfqq2     bfqq3 Now that BIC2 points to bfqq3, while bfqq2 and bfqq3 both point to BIC2. If all the requests are     completed, and Process 2 exit, BIC2 will be freed while there is no guarantee that bfqq2 will be freed     before BIC2. Fix the problem by clearing bfqq->bic while bfqq is detached from bic. (CVE-2022-50488)

  - In the Linux kernel, the following vulnerability has been resolved: wifi: ath10k: Delay the unmapping of     the buffer On WCN3990, we are seeing a rare scenario where copy engine hardware is sending a copy complete     interrupt to the host driver while still processing the buffer that the driver has sent, this is leading     into an SMMU fault triggering kernel panic. This is happening on copy engine channel 3 (CE3) where the     driver normally enqueues WMI commands to the firmware. Upon receiving a copy complete interrupt, host     driver will immediately unmap and frees the buffer presuming that hardware has processed the buffer. In     the issue case, upon receiving copy complete interrupt, host driver will unmap and free the buffer but     since hardware is still accessing the buffer (which in this case got unmapped in parallel), SMMU hardware     will trigger an SMMU fault resulting in a kernel panic. In order to avoid this, as a work around, add a     delay before unmapping the copy engine source DMA buffer. This is conditionally done for WCN3990 and only     for the CE3 channel where issue is seen. Below is the crash signature: wifi smmu error: kernel: [     10.120965] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x7fdfd8ac0,     fsynr=0x500003,cbfrsynra=0xc1, cb=6 arm-smmu 15000000.iommu: Unhandled context fault:fsr=0x402,     iova=0x7fe06fdc0, fsynr=0x710003, cbfrsynra=0xc1, cb=6 qcom-q6v5-mss 4080000.remoteproc: fatal error     received: err_qdi.c:1040:EF:wlan_process:0x1:WLAN RT:0x2091: cmnos_thread.c:3998:Asserted in     copy_engine.c:AXI_ERROR_DETECTED:2149 remoteproc remoteproc0: crash detected in 4080000.remoteproc: type     fatal error <3> remoteproc remoteproc0: handling crash #1 in 4080000.remoteproc pc :
    __arm_lpae_unmap+0x500/0x514 lr : __arm_lpae_unmap+0x4bc/0x514 sp : ffffffc011ffb530 x29: ffffffc011ffb590     x28: 0000000000000000 x27: 0000000000000000 x26: 0000000000000004 x25: 0000000000000003 x24:
    ffffffc011ffb890 x23: ffffffa762ef9be0 x22: ffffffa77244ef00 x21: 0000000000000009 x20: 00000007fff7c000     x19: 0000000000000003 x18: 0000000000000000 x17: 0000000000000004 x16: ffffffd7a357d9f0 x15:
    0000000000000000 x14: 00fd5d4fa7ffffff x13: 000000000000000e x12: 0000000000000000 x11: 00000000ffffffff     x10: 00000000fffffe00 x9 : 000000000000017c x8 : 000000000000000c x7 : 0000000000000000 x6 :
    ffffffa762ef9000 x5 : 0000000000000003 x4 : 0000000000000004 x3 : 0000000000001000 x2 : 00000007fff7c000     x1 : ffffffc011ffb890 x0 : 0000000000000000 Call trace: __arm_lpae_unmap+0x500/0x514
    __arm_lpae_unmap+0x4bc/0x514 __arm_lpae_unmap+0x4bc/0x514 arm_lpae_unmap_pages+0x78/0xa4     arm_smmu_unmap_pages+0x78/0x104 __iommu_unmap+0xc8/0x1e4 iommu_unmap_fast+0x38/0x48
    __iommu_dma_unmap+0x84/0x104 iommu_dma_free+0x34/0x50 dma_free_attrs+0xa4/0xd0     ath10k_htt_rx_free+0xc4/0xf4 [ath10k_core] ath10k_core_stop+0x64/0x7c [ath10k_core]     ath10k_halt+0x11c/0x180 [ath10k_core] ath10k_stop+0x54/0x94 [ath10k_core] drv_stop+0x48/0x1c8 [mac80211]     ieee80211_do_open+0x638/0x77c [mac80211] ieee80211_open+0x48/0x5c [mac80211] __dev_open+0xb4/0x174
    __dev_change_flags+0xc4/0x1dc dev_change_flags+0x3c/0x7c devinet_ioctl+0x2b4/0x580 inet_ioctl+0xb0/0x1b4     sock_do_ioctl+0x4c/0x16c compat_ifreq_ioctl+0x1cc/0x35c compat_sock_ioctl+0x110/0x2ac
    __arm64_compat_sys_ioctl+0xf4/0x3e0 el0_svc_common+0xb4/0x17c el0_svc_compat_handler+0x2c/0x58     el0_svc_compat+0x8/0x2c Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1 (CVE-2022-50700)

  - In the Linux kernel, the following vulnerability has been resolved: tcp: fix a signed-integer-overflow bug     in tcp_add_backlog() The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and in tcp_add_backlog(),     the variable limit is caculated by adding sk_rcvbuf, sk_sndbuf and 64 * 1024, it may exceed the max value     of int and overflow. This patch reduces the limit budget by halving the sndbuf to solve this issue since     ACK packets are much smaller than the payload. (CVE-2022-50865)

  - In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in     bic_set_bfqq() After commit 64dc8c732f5c (block, bfq: fix possible uaf for 'bfqq->bic'), bic->bfqq will     be accessed in bic_set_bfqq(), however, in some context bic->bfqq will be freed, and bic_set_bfqq() is     called with the freed bic->bfqq. Fix the problem by always freeing bfqq after bic_set_bfqq().
    (CVE-2023-52983)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0617-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
    - CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255594).
    - CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
    - CVE-2023-53215: sched/fair: Don't balance task to its current running CPU (bsc#1250397).
    - CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
    - CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
    - CVE-2023-54142: gtp: Fix use-after-free in __gtp_encap_destroy() (bsc#1256095).
    - CVE-2023-54243: netfilter: ebtables: fix table blob use-after-free (bsc#1255908).
    - CVE-2024-28956: x86/its: Enumerate Indirect Target Selection (ITS) bug (bsc#1242006).
    - CVE-2024-36348: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
    - CVE-2024-36349: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
    - CVE-2024-36350: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
    - CVE-2024-36357: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
    - CVE-2024-44987: ipv6: prevent UAF in ip6_send_skb() (bsc#1230185).
    - CVE-2024-46854: net: dpaa: Pad packets to ETH_ZLEN (bsc#1231084).
    - CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer (bsc#1238917).
    - CVE-2025-38068: crypto: lzo - Fix compression buffer overrun (bsc#1245210).
    - CVE-2025-38129: page_pool: fix inconsistency for page_pool_ring_lock() (bsc#1245723).
    - CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1245751).
    - CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1247177).
    - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
    - CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
    - CVE-2025-40139: net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward (bsc#1253409).
    - CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
    - CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
    - CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
    - CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer() (bsc#1254842).
    - CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
    - CVE-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
    - CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
    - CVE-2025-40300: Documentation/hw-vuln: Add VMSCAPE documentation (bsc#1247483).
    - CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
    - CVE-2025-68183: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (bsc#1255251).
    - CVE-2025-68284: libceph: prevent potential out-of-bounds writes in handle_auth_session_key()     (bsc#1255377).
    - CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255401).
    - CVE-2025-68312: usbnet: Prevents free active kevent (bsc#1255171).
    - CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).
    - CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256641).
    - CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (bsc#1256623).
    - CVE-2025-71089: iommu: disable SVA when CONFIG_X86 is set (bsc#1256612).
    - CVE-2025-71112: net: hns3: add VLAN id validation before using (bsc#1256726).
    - CVE-2025-71116: libceph: make decode_pool() more resilient against corrupted osdmaps (bsc#1256744).
    - CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf     (bsc#1256779).
    - CVE-2026-22999: net/sched: sch_qfq: do not free existing class in qfq_change_class() (bsc#1257236).
    - CVE-2026-23001: macvlan: fix possible UAF in macvlan_forward_source() (bsc#1257232).
    - CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1257749).
    - CVE-2026-23089: ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() (bsc#1257790).

    The following non security issues were fixed:

    - net: hv_netvsc: reject RSS hash key programming without RX indirection table (bsc#1257473).
    - net: tcp: allow zero-window ACK update the window (bsc#1254767).
    - net: tcp: send zero-window ACK when no memory (bsc#1254767).
    - scsi: storvsc: Process unsupported MODE_SENSE_10 (bsc#1257296).
    - tcp: correct handling of extreme memory squeeze (bsc#1254767).
    - x86/CPU/AMD: Add ZenX generations flags (bsc#1238896).
    - x86/its: Fix crash during dynamic its initialization (bsc#1257771).
    - x86/modules: Set VM_FLUSH_RESET_PERMS in module_alloc() (bsc#1257771).
    - x86: make page fault handling disable interrupts properly (git-fixes).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0317-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
    - CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
    - CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
    - CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
    - CVE-2024-56590: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet (bsc#1235038).
    - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
    - CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
    - CVE-2025-40139: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set() (bsc#1253409).
    - CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
    - CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
    - CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
    - CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
    - CVE-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
    - CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
    - CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
    - CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).

    The following non security issues were fixed:

    - ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() (git-fixes).
    - ACPI: PRM: Remove unnecessary strict handler address checks (git-fixes).
    - ACPI: property: Do not pass NULL handles to acpi_attach_data() (git-fixes).
    - ACPI: property: Fix buffer properties extraction for subnodes (git-fixes).
    - KVM: SVM: Fix TSC_AUX virtualization setup (git-fixes).
    - RDMA/cm: Rate limit destroy CM ID timeout error message (git-fixes).
    - RDMA/counter: Check CAP_NET_RAW check in user namespace for RDMA counters (git-fixes).
    - RDMA/hns: Fix the modification of max_send_sge (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for anchor create (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for devx create (git-fixes).
    - RDMA/mlx5: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
    - RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set (git-fixes).
    - RDMA/nldev: Check CAP_NET_RAW in user namespace for QP modify (git-fixes).
    - RDMA/uverbs: Add empty rdma_uattrs_has_raw_cap() declaration (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for QP create (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for RAW QP create (git-fixes).
    - RDMA/uverbs: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
    - arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled (git-fixes).
    - cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls (git-fixes).
    - cpuidle: Move IRQ state validation (git-fixes).
    - cpuidle: haltpoll: Do not enable interrupts when entering idle (git-fixes).
    - dm: free table mempools if not used in __bind (git-fixes).
    - padata: Honor the caller's alignment in case of chunk_size 0 (bsc#1237563).
    - platform/x86/intel-uncore-freq: Fail module load when plat_info is NULL (git-fixes).
    - x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() (git-fixes).
    - x86/bugs: Use SBPB in write_ibpb() if applicable (git-fixes).
    - x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT (git-fixes).
    - x86/tdx: Drop flags from __tdx_hypercall() (git-fixes).
    - x86/tdx: Dynamically disable SEPT violations from causing #VEs (git-fixes).
    - x86/tdx: Emit warning if IRQs are enabled during HLT #VE handling (git-fixes).
    - x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs (git-fixes).
    - x86/tdx: Fix __noreturn build warning around __tdx_hypercall_failed() (git-fixes).
    - x86/tdx: Fix arch_safe_halt() execution for TDX VMs (git-fixes).
    - x86/tdx: Introduce wrappers to read and write TD metadata (git-fixes).
    - x86/tdx: Make TDX_HYPERCALL asm similar to TDX_MODULE_CALL (git-fixes).
    - x86/tdx: Make macros of TDCALLs consistent with the spec (git-fixes).
    - x86/tdx: Pass TDCALL/SEAMCALL input/output registers via a structure (git-fixes).
    - x86/tdx: Reimplement __tdx_hypercall() using TDX_MODULE_CALL asm (git-fixes).
    - x86/tdx: Remove 'struct tdx_hypercall_args' (git-fixes).
    - x86/tdx: Remove TDX_HCALL_ISSUE_STI (git-fixes).
    - x86/tdx: Rename __tdx_module_call() to __tdcall() (git-fixes).
    - x86/tdx: Rename tdx_parse_tdinfo() to tdx_setup() (git-fixes).
    - x86/tdx: Retry partially-completed page conversion hypercalls (git-fixes).
    - x86/tdx: Skip saving output regs when SEAMCALL fails with VMFailInvalid (git-fixes).
    - x86/tdx: Zero out the missing RSI in TDX_HYPERCALL macro (git-fixes).
    - x86/virt/tdx: Make TDX_MODULE_CALL handle SEAMCALL #UD and #GP (git-fixes).
    - x86/virt/tdx: Wire up basic SEAMCALL functions (git-fixes).
    - xfs: fix sparse inode limits on runt AG (bsc#1254392).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow A static code analysis tool flagged the     possibility of buffer overflow when using copy_from_user() for a debugfs entry. Currently, it is possible     that copy_from_user() copies more bytes than what would fit in the mybuf char array. Add a min()     restriction check between sizeof(mybuf) - 1 and nbytes passed from the userspace buffer to protect against     buffer overflow. (CVE-2023-54102)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of kernel installed on the remote host is prior to 5.4.247-161.349. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-047 advisory.

    A flaw was found in the x86 KVM subsystem in kvm_steal_time_set_preempted in arch/x86/kvm/x86.c in the     Linux kernel. Unprivileged guest users can compromise the guest kernel because TLB flush operations are     mishandled in certain KVM_VCPU_PREEMPTED situations. (CVE-2022-39189)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: unset reloc control if transaction commit fails in prepare_to_relocate() (CVE-2022-50067)

    There is a potential deadlock in the eBPF subsystem in the Linux kernel.

    The default sysctl configuration kernel.unprivileged_bpf_disabled on Amazon Linux does not allow     unprivileged users to use eBPF. (CVE-2023-0160)

    A denial of service problem was found, due to a possible recursive locking scenario, resulting in a     deadlock in table_clear in drivers/md/dm-ioctl.c in the Linux Kernel Device Mapper-Multipathing sub-     component. (CVE-2023-2269)

    A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to     achieve local privilege escalation.

    The out-of-bounds write is caused by missing skb->cb  initialization in the ipvlan network driver. The     vulnerability is reachable if CONFIG_IPVLAN is enabled.

    We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)

    A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the     Linux Kernel. This possible flaw can be triggered by calling btrfs_ioctl_balance() before calling     btrfs_ioctl_defrag(). (CVE-2023-3111)

    A use-after-free flaw was found in r592_remove in drivers/memstick/host/r592.c in media access in the     Linux Kernel. This flaw allows a local attacker to crash the system at device disconnect, possibly leading     to a kernel information leak. (CVE-2023-3141)

    An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in     kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel     internal information. (CVE-2023-3268)

    An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in     lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an     offset. (CVE-2023-34256)

    A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux     Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal     kernel information. (CVE-2023-3567)

    An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
    It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
    This may result in denial of service or privilege escalation. (CVE-2023-35788)

    In the Linux kernel, the following vulnerability has been resolved:

    serial: 8250: Reinit port->pm on port specific driver unbind (CVE-2023-53176)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPICA: Avoid undefined behavior: applying zero offset to null pointer (CVE-2023-53182)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: add bounds checking in get_max_inline_xattr_value_size() (CVE-2023-53285)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix leak of 'r10bio->remaining' for recovery (CVE-2023-53299)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix WARNING in mb_find_extent (CVE-2023-53317)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: do not write dirty data after degenerating to read-only (CVE-2023-53337)

    In the Linux kernel, the following vulnerability has been resolved:

    net: add vlan_get_protocol_and_depth() helper (CVE-2023-53433)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: remove a BUG_ON in ext4_mb_release_group_pa() (CVE-2023-53450)

    In the Linux kernel, the following vulnerability has been resolved:

    lib: cpu_rmap: Avoid use after free on rmap->obj array entries (CVE-2023-53484)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. (CVE-2023-53489)

    In the Linux kernel, the following vulnerability has been resolved:

    spi: qup: Don't skip cleanup in remove's error path (CVE-2023-53567)

    In the Linux kernel, the following vulnerability has been resolved:

    ext2: Check block size validity during mount (CVE-2023-53569)

    In the Linux kernel, the following vulnerability has been resolved:

    ring-buffer: Sync IRQ works before buffer destruction (CVE-2023-53587)

    In the Linux kernel, the following vulnerability has been resolved:

    dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path (CVE-2023-53604)

    In the Linux kernel, the following vulnerability has been resolved:

    net: cdc_ncm: Deal with too low values of dwNtbOutMaxSize (CVE-2023-53667)

    In the Linux kernel, the following vulnerability has been resolved:

    fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode() (CVE-2023-53683)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline (CVE-2023-53692)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: Fix out-of-bounds access in ipv6_find_tlv() (CVE-2023-53705)

    In the Linux kernel, the following vulnerability has been resolved:

    serial: arc_uart: fix of_iomap leak in `arc_serial_probe` (CVE-2023-53719)

    In the Linux kernel, the following vulnerability has been resolved:

    vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF (CVE-2023-53747)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() (CVE-2023-53754)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: usbtmc: Fix direction for 0-length ioctl control messages (CVE-2023-53761)

    In the Linux kernel, the following vulnerability has been resolved:

    dm flakey: fix a crash with invalid table line (CVE-2023-53786)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() (CVE-2023-53804)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix null-ptr-deref in raid10_sync_request (CVE-2023-53832)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: fix infinite loop in nilfs_mdt_get_block() (CVE-2023-53845)

    In the Linux kernel, the following vulnerability has been resolved:

    netlink: annotate accesses to nlk->cb_running (CVE-2023-53853)

    In the Linux kernel, the following vulnerability has been resolved:

    udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). (CVE-2023-54004)

    In the Linux kernel, the following vulnerability has been resolved:

    vmci_host: fix a race condition in vmci_host_poll() causing GPF (CVE-2023-54007)

    In the Linux kernel, the following vulnerability has been resolved:

    net: fix stack overflow when LRO is disabled for virtual interfaces (CVE-2023-54012)

    In the Linux kernel, the following vulnerability has been resolved:

    net/mlx5: Devcom, fix error flow in mlx5_devcom_register_device (CVE-2023-54015)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: set goal start correctly in ext4_mb_normalize_request (CVE-2023-54021)

    In the Linux kernel, the following vulnerability has been resolved:

    spmi: Add a check for remove callback when removing a SPMI driver (CVE-2023-54044)

    In the Linux kernel, the following vulnerability has been resolved:

    kheaders: Use array declaration instead of char (CVE-2023-54056)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix invalid free tracking in ext4_xattr_move_to_block() (CVE-2023-54062)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow (CVE-2023-54102)

    In the Linux kernel, the following vulnerability has been resolved:

    net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() (CVE-2023-54114)

    In the Linux kernel, the following vulnerability has been resolved:

    inotify: Avoid reporting event with invalid wd (CVE-2023-54119)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix memleak for 'conf->bio_split' (CVE-2023-54123)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: don't free qgroup space unless specified (CVE-2023-54158)

    In the Linux kernel, the following vulnerability has been resolved:

    firmware: arm_sdei: Fix sleep from invalid context BUG (CVE-2023-54160)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() (CVE-2023-54168)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: iscsit: Free cmds before session free (CVE-2023-54184)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: cls_api: remove block_cb from driver_list before freeing (CVE-2023-54193)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: sisusbvga: Add endpoint checks (CVE-2023-54213)

    In the Linux kernel, the following vulnerability has been resolved:

    net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs(). (CVE-2023-54218)

    In the Linux kernel, the following vulnerability has been resolved:

    af_unix: Fix data races around sk->sk_shutdown. (CVE-2023-54226)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: EC: Fix oops when removing custom query handlers (CVE-2023-54244)

    In the Linux kernel, the following vulnerability has been resolved:

    debugobjects: Don't wake up kswapd from fill_pool() (CVE-2023-54268)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix memleak of md thread (CVE-2023-54294)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix deadlock when converting an inline directory in nojournal mode (CVE-2023-54311)

    A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This     flaw allows a local user to cause an information leak problem while freeing the old quota file names     before a potential failure, leading to a use-after-free. (CVE-2024-0775)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of kernel installed on the remote host is prior to 5.10.184-174.730. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-034 advisory.

    A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking     configuration (redirecting egress packets to ingress using TC action mirred) a local unprivileged user     could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a     retransmission, resulting in a denial of service condition. (CVE-2022-4269)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: unset reloc control if transaction commit fails in prepare_to_relocate() (CVE-2022-50067)

    There is a potential deadlock in the eBPF subsystem in the Linux kernel.

    The default sysctl configuration kernel.unprivileged_bpf_disabled on Amazon Linux does not allow     unprivileged users to use eBPF. (CVE-2023-0160)

    A flaw was found in the Linux kernel's networking subsystem within the RPL protocol's handling. This issue     results from the improper handling of user-supplied data, which can lead to an assertion failure. This     flaw allows an unauthenticated, remote attacker to create a denial of service condition on the system.
    (CVE-2023-2156)

    A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to     achieve local privilege escalation.

    The out-of-bounds write is caused by missing skb->cb  initialization in the ipvlan network driver. The     vulnerability is reachable if CONFIG_IPVLAN is enabled.

    We recommend upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)

    A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the     Linux Kernel. This possible flaw can be triggered by calling btrfs_ioctl_balance() before calling     btrfs_ioctl_defrag(). (CVE-2023-3111)

    A use-after-free flaw was found in r592_remove in drivers/memstick/host/r592.c in media access in the     Linux Kernel. This flaw allows a local attacker to crash the system at device disconnect, possibly leading     to a kernel information leak. (CVE-2023-3141)

    A flaw in the Linux Kernel found in the GFS2 file system. On corrupted gfs2 file systems the evict code     can try to reference the journal descriptor structure, jdesc, after it has been freed and set to NULL. It     can lead to null pointer dereference when gfs2_trans_begin being called and then fail     ingfs2_evict_inode(). (CVE-2023-3212)

    An out of bounds (OOB) memory access flaw was found in the Linux kernel in relay_file_read_start_pos in     kernel/relay.c in the relayfs. This flaw could allow a local attacker to crash the system or leak kernel     internal information. (CVE-2023-3268)

    An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in     lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an     offset. (CVE-2023-34256)

    A use-after-free flaw was found in vcs_read in drivers/tty/vt/vc_screen.c in vc_screen in the Linux     Kernel. In this flaw an attacker with local user access may lead to a system crash or a leak of internal     kernel information. (CVE-2023-3567)

    An issue was discovered in fl_set_geneve_opt in net/sched/cls_flower.c in the Linux kernel before 6.3.7.
    It allows an out-of-bounds write in the flower classifier code via TCA_FLOWER_KEY_ENC_OPTS_GENEVE packets.
    This may result in denial of service or privilege escalation. (CVE-2023-35788)

    In the Linux kernel, the following vulnerability has been resolved:

    serial: 8250: Reinit port->pm on port specific driver unbind (CVE-2023-53176)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPICA: Avoid undefined behavior: applying zero offset to null pointer (CVE-2023-53182)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: add bounds checking in get_max_inline_xattr_value_size() (CVE-2023-53285)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix leak of 'r10bio->remaining' for recovery (CVE-2023-53299)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix WARNING in mb_find_extent (CVE-2023-53317)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: do not write dirty data after degenerating to read-only (CVE-2023-53337)

    In the Linux kernel, the following vulnerability has been resolved:

    rcu: Protect rcu_print_task_exp_stall() ->exp_tasks access (CVE-2023-53419)

    In the Linux kernel, the following vulnerability has been resolved:

    net: add vlan_get_protocol_and_depth() helper (CVE-2023-53433)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: remove a BUG_ON in ext4_mb_release_group_pa() (CVE-2023-53450)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/MCE/AMD: Use an u64 for bank_map (CVE-2023-53474)

    In the Linux kernel, the following vulnerability has been resolved:

    lib: cpu_rmap: Avoid use after free on rmap->obj array entries (CVE-2023-53484)

    In the Linux kernel, the following vulnerability has been resolved:

    tcp/udp: Fix memleaks of sk and zerocopy skbs with TX timestamp. (CVE-2023-53489)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: allow ext4_get_group_info() to fail (CVE-2023-53503)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: do not update mtu if msg_max is too small in mtu negotiation (CVE-2023-53517)

    In the Linux kernel, the following vulnerability has been resolved:

    blk-crypto: make blk_crypto_evict_key() more robust (CVE-2023-53536)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nft_set_rbtree: fix null deref on element insertion (CVE-2023-53566)

    In the Linux kernel, the following vulnerability has been resolved:

    spi: qup: Don't skip cleanup in remove's error path (CVE-2023-53567)

    In the Linux kernel, the following vulnerability has been resolved:

    ext2: Check block size validity during mount (CVE-2023-53569)

    In the Linux kernel, the following vulnerability has been resolved:

    null_blk: Always check queue mode setting from configfs (CVE-2023-53576)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: Fix multiple LUN_RESET handling (CVE-2023-53586)

    In the Linux kernel, the following vulnerability has been resolved:

    ring-buffer: Sync IRQ works before buffer destruction (CVE-2023-53587)

    In the Linux kernel, the following vulnerability has been resolved:

    dm integrity: call kmem_cache_destroy() in dm_integrity_init() error path (CVE-2023-53604)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: sch_fq: fix integer overflow of credit (CVE-2023-53624)

    In the Linux kernel, the following vulnerability has been resolved:

    rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed (CVE-2023-53655)

    In the Linux kernel, the following vulnerability has been resolved:

    fs: hfsplus: remove WARN_ON() from hfsplus_cat_{read,write}_inode() (CVE-2023-53683)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline (CVE-2023-53692)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: Fix out-of-bounds access in ipv6_find_tlv() (CVE-2023-53705)

    In the Linux kernel, the following vulnerability has been resolved:

    serial: arc_uart: fix of_iomap leak in `arc_serial_probe` (CVE-2023-53719)

    In the Linux kernel, the following vulnerability has been resolved:

    vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF (CVE-2023-53747)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: lpfc: Fix ioremap issues in lpfc_sli4_pci_mem_setup() (CVE-2023-53754)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: usbtmc: Fix direction for 0-length ioctl control messages (CVE-2023-53761)

    In the Linux kernel, the following vulnerability has been resolved:

    dm flakey: fix a crash with invalid table line (CVE-2023-53786)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() (CVE-2023-53804)

    In the Linux kernel, the following vulnerability has been resolved:

    blk-mq: release crypto keyslot before reporting I/O complete (CVE-2023-53810)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix null-ptr-deref in raid10_sync_request (CVE-2023-53832)

    In the Linux kernel, the following vulnerability has been resolved:

    nilfs2: fix infinite loop in nilfs_mdt_get_block() (CVE-2023-53845)

    In the Linux kernel, the following vulnerability has been resolved:

    netlink: annotate accesses to nlk->cb_running (CVE-2023-53853)

    In the Linux kernel, the following vulnerability has been resolved:

    udplite: Fix NULL pointer dereference in __sk_mem_raise_allocated(). (CVE-2023-54004)

    In the Linux kernel, the following vulnerability has been resolved:

    vmci_host: fix a race condition in vmci_host_poll() causing GPF (CVE-2023-54007)

    In the Linux kernel, the following vulnerability has been resolved:

    net: fix stack overflow when LRO is disabled for virtual interfaces (CVE-2023-54012)

    In the Linux kernel, the following vulnerability has been resolved:

    net/mlx5: Devcom, fix error flow in mlx5_devcom_register_device (CVE-2023-54015)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: set goal start correctly in ext4_mb_normalize_request (CVE-2023-54021)

    In the Linux kernel, the following vulnerability has been resolved:

    spmi: Add a check for remove callback when removing a SPMI driver (CVE-2023-54044)

    In the Linux kernel, the following vulnerability has been resolved:

    kheaders: Use array declaration instead of char (CVE-2023-54056)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix invalid free tracking in ext4_xattr_move_to_block() (CVE-2023-54062)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: qedi: Fix use after free bug in qedi_remove() (CVE-2023-54100)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: lpfc: Prevent lpfc_debugfs_lockstat_write() buffer overflow (CVE-2023-54102)

    In the Linux kernel, the following vulnerability has been resolved:

    net: nsh: Use correct mac_offset to unwind gso skb in nsh_gso_segment() (CVE-2023-54114)

    In the Linux kernel, the following vulnerability has been resolved:

    inotify: Avoid reporting event with invalid wd (CVE-2023-54119)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix memleak for 'conf->bio_split' (CVE-2023-54123)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: don't free qgroup space unless specified (CVE-2023-54158)

    In the Linux kernel, the following vulnerability has been resolved:

    firmware: arm_sdei: Fix sleep from invalid context BUG (CVE-2023-54160)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() (CVE-2023-54168)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: target: iscsit: Free cmds before session free (CVE-2023-54184)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: cls_api: remove block_cb from driver_list before freeing (CVE-2023-54193)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: sisusbvga: Add endpoint checks (CVE-2023-54213)

    In the Linux kernel, the following vulnerability has been resolved:

    net: Fix load-tearing on sk->sk_stamp in sock_recv_cmsgs(). (CVE-2023-54218)

    In the Linux kernel, the following vulnerability has been resolved:

    af_unix: Fix data races around sk->sk_shutdown. (CVE-2023-54226)

    In the Linux kernel, the following vulnerability has been resolved:

    ACPI: EC: Fix oops when removing custom query handlers (CVE-2023-54244)

    In the Linux kernel, the following vulnerability has been resolved:

    debugobjects: Don't wake up kswapd from fill_pool() (CVE-2023-54268)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/srpt: Add a check for valid 'mad_agent' pointer (CVE-2023-54274)

    In the Linux kernel, the following vulnerability has been resolved:

    md/raid10: fix memleak of md thread (CVE-2023-54294)

    In the Linux kernel, the following vulnerability has been resolved:

    ext4: fix deadlock when converting an inline directory in nojournal mode (CVE-2023-54311)

    A use-after-free flaw was found in the __ext4_remount in fs/ext4/super.c in ext4 in the Linux kernel. This     flaw allows a local user to cause an information leak problem while freeing the old quota file names     before a potential failure, leading to a use-after-free. (CVE-2024-0775)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

ID	Name	Product	Family	Type	Severity
361173	CentOS Linux 8.4 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1771078945)	Nessus	CentOS Local Security Checks	Local	high
360928	CentOS Linux 8.5 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.5:CLSA-2026:1771077729)	Nessus	CentOS Local Security Checks	Local	high
360081	AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1771239384)	Nessus	Alma Linux Local Security Checks	Local	high
319448	EulerOS Virtualization 2.13.1 : kernel (EulerOS-SA-2026-2132)	Nessus	Huawei Local Security Checks	Local	high
319325	EulerOS Virtualization 2.13.0 : kernel (EulerOS-SA-2026-2171)	Nessus	Huawei Local Security Checks	Local	high
301628	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1280)	Nessus	Huawei Local Security Checks	Local	high
301595	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1244)	Nessus	Huawei Local Security Checks	Local	high
300092	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:0617-1)	Nessus	SuSE Local Security Checks	Local	medium
297191	SUSE SLES15 : Security update for the Linux Kernel (SUSE-SU-2026:0317-1)	Nessus	SuSE Local Security Checks	Local	high
279861	Linux Distros Unpatched Vulnerability : CVE-2023-54102	Nessus	Misc.	Local	high
177776	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-047 (ALASKERNEL-5.4-2023-047)	Nessus	Amazon Linux Local Security Checks	Local	high
177770	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-034 (ALASKERNEL-5.10-2023-034)	Nessus	Amazon Linux Local Security Checks	Local	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	Local	high

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