In the Linux kernel, the following vulnerability has been resolved: fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() Syzkaller reported the following issue: ================================================================== BUG: KASAN: double-free in slab_free mm/slub.c:3787 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3800 Free of addr ffff888086408000 by task syz-executor.4/12750 [...] Call Trace: <TASK> [...] kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:482 ____kasan_slab_free+0xfb/0x120 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3800 dbUnmount+0xf4/0x110 fs/jfs/jfs_dmap.c:264 jfs_umount+0x248/0x3b0 fs/jfs/jfs_umount.c:87 jfs_put_super+0x86/0x190 fs/jfs/super.c:194 generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1386 deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1291 task_work_run+0x243/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb2/0x140 kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] </TASK> Allocated by task 13352: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380 kmalloc include/linux/slab.h:580 [inline] dbMount+0x54/0x980 fs/jfs/jfs_dmap.c:164 jfs_mount+0x1dd/0x830 fs/jfs/jfs_mount.c:121 jfs_fill_super+0x590/0xc50 fs/jfs/super.c:556 mount_bdev+0x26c/0x3a0 fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489 do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount fs/namespace.c:3697 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 13352: kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:518 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline] slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline] __kmem_cache_free+0x71/0x110 mm/slub.c:3800 dbUnmount+0xf4/0x110 fs/jfs/jfs_dmap.c:264 jfs_mount_rw+0x545/0x740 fs/jfs/jfs_mount.c:247 jfs_remount+0x3db/0x710 fs/jfs/super.c:454 reconfigure_super+0x3bc/0x7b0 fs/super.c:935 vfs_fsconfig_locked fs/fsopen.c:254 [inline] __do_sys_fsconfig fs/fsopen.c:439 [inline] __se_sys_fsconfig+0xad5/0x1060 fs/fsopen.c:314 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] JFS_SBI(ipbmap->i_sb)->bmap wasn't set to NULL after kfree() in dbUnmount(). Syzkaller uses faultinject to reproduce this KASAN double-free warning. The issue is triggered if either diMount() or dbMount() fail in jfs_remount(), since diUnmount() or dbUnmount() already happened in such a case - they will do double-free on next execution: jfs_umount or jfs_remount. Tested on both upstream and jfs-next by syzkaller.

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.

  - fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() Syzkaller reported the following     issue: ================================================================== BUG: KASAN: double-free in     slab_free mm/slub.c:3787 [inline] BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3800     Free of addr ffff888086408000 by task syz-executor.4/12750 [...] Call Trace: <TASK> [...]     kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:482 ____kasan_slab_free+0xfb/0x120 kasan_slab_free     include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline]     slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline]
    __kmem_cache_free+0x71/0x110 mm/slub.c:3800 dbUnmount+0xf4/0x110 fs/jfs/jfs_dmap.c:264     jfs_umount+0x248/0x3b0 fs/jfs/jfs_umount.c:87 jfs_put_super+0x86/0x190 fs/jfs/super.c:194     generic_shutdown_super+0x130/0x310 fs/super.c:492 kill_block_super+0x79/0xd0 fs/super.c:1386     deactivate_locked_super+0xa7/0xf0 fs/super.c:332 cleanup_mnt+0x494/0x520 fs/namespace.c:1291     task_work_run+0x243/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49     [inline] exit_to_user_mode_loop+0x124/0x150 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb2/0x140     kernel/entry/common.c:203 __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]     syscall_exit_to_user_mode+0x26/0x60 kernel/entry/common.c:296 do_syscall_64+0x49/0xb0     arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] </TASK> Allocated by task 13352:
    kasan_save_stack mm/kasan/common.c:45 [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52
    ____kasan_kmalloc mm/kasan/common.c:371 [inline] __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:380 kmalloc     include/linux/slab.h:580 [inline] dbMount+0x54/0x980 fs/jfs/jfs_dmap.c:164 jfs_mount+0x1dd/0x830     fs/jfs/jfs_mount.c:121 jfs_fill_super+0x590/0xc50 fs/jfs/super.c:556 mount_bdev+0x26c/0x3a0     fs/super.c:1359 legacy_get_tree+0xea/0x180 fs/fs_context.c:610 vfs_get_tree+0x88/0x270 fs/super.c:1489     do_new_mount+0x289/0xad0 fs/namespace.c:3145 do_mount fs/namespace.c:3488 [inline] __do_sys_mount     fs/namespace.c:3697 [inline] __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3674 do_syscall_x64     arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 13352: kasan_save_stack mm/kasan/common.c:45     [inline] kasan_set_track+0x3d/0x60 mm/kasan/common.c:52 kasan_save_free_info+0x27/0x40     mm/kasan/generic.c:518 ____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236 kasan_slab_free     include/linux/kasan.h:177 [inline] slab_free_hook mm/slub.c:1781 [inline]     slab_free_freelist_hook+0x12e/0x1a0 mm/slub.c:1807 slab_free mm/slub.c:3787 [inline]
    __kmem_cache_free+0x71/0x110 mm/slub.c:3800 dbUnmount+0xf4/0x110 fs/jfs/jfs_dmap.c:264     jfs_mount_rw+0x545/0x740 fs/jfs/jfs_mount.c:247 jfs_remount+0x3db/0x710 fs/jfs/super.c:454     reconfigure_super+0x3bc/0x7b0 fs/super.c:935 vfs_fsconfig_locked fs/fsopen.c:254 [inline]
    __do_sys_fsconfig fs/fsopen.c:439 [inline] __se_sys_fsconfig+0xad5/0x1060 fs/fsopen.c:314 do_syscall_x64     arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80     entry_SYSCALL_64_after_hwframe+0x63/0xcd [...] JFS_SBI(ipbmap->i_sb)->bmap wasn't set to NULL after     kfree() in dbUnmount(). Syzkaller uses faultinject to reproduce this KASAN double-free warning. The issue     is triggered if either diMount() or dbMount() fail in jfs_remount(), since diUnmount() or dbUnmount()     already happened in such a case - they will do double-free on next execution: jfs_umount or jfs_remount.
    Tested on both upstream and jfs-next by syzkaller. (CVE-2023-54127)

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 5.10.197-186.748. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-041 advisory.

    A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to     the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer     access. (CVE-2023-42755)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    Addition and removal of rules from chain bindings within the same transaction causes leads to use-after-     free.

    We recommend upgrading past commit f15f29fd4779be8a418b66e9d52979bb6d6c2325. (CVE-2023-5197)

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

    ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer (CVE-2023-53395)

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

    kobject: Add sanity check for kset->kobj.ktype in kset_register() (CVE-2023-53480)

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

    jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount (CVE-2023-53616)

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

    btrfs: output extra debug info if we failed to find an inline backref (CVE-2023-53672)

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

    scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (CVE-2023-53676)

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

    md: raid1: fix potential OOB in raid1_remove_disk() (CVE-2023-53722)

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

    crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() (CVE-2023-53817)

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

    fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() (CVE-2023-54127)

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

    autofs: fix memory leak of waitqueues in autofs_catatonic_mode (CVE-2023-54134)

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

    btrfs: release path before inode lookup during the ino lookup ioctl (CVE-2023-54281)

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 5.4.257-170.359. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2023-053 advisory.

    A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in     xfrm_update_ae_params(), leading to a possible kernel crash and denial of service. (CVE-2023-3772)

    nftables out-of-bounds read in nf_osf_match_one() (CVE-2023-39189)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the     fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds     read by setting the size fields with a value beyond the array boundaries, leading to a crash or     information disclosure. (CVE-2023-39192)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

    A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

    The upstream commit describes this issue as follows:

    The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong     `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to     slab out-of-bound access. (CVE-2023-42753)

    A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to     the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer     access. (CVE-2023-42755)

    An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel     before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

    A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local     privilege escalation.

    The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without     locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that     is being released by garbage collection, resulting in use-after-free.

    We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)     component can be exploited to achieve local privilege escalation.

    If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing     curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in     update_vf(). This leaves a dangling pointer that can cause a use-after-free.

    We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation.

    When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free     in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in     agg_dequeue().

    We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

    In the Linux kernel before 6.4.12, amdgpu_cs_wait_all_fences in drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c has     a fence use-after-free. (CVE-2023-51042)

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

    xfrm: add NULL check in xfrm_update_ae_params (CVE-2023-53147)

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

    udf: Fix uninitialized array access for some pathnames (CVE-2023-53165)

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

    netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c     (CVE-2023-53179)

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

    af_unix: Fix data-races around user->unix_inflight. (CVE-2023-53204)

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

    drm/radeon: Fix integer overflow in radeon_cs_parser_init (CVE-2023-53309)

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

    drm/msm/mdp5: Don't leak some plane state (CVE-2023-53324)

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

    pstore/ram: Check start of empty przs during init (CVE-2023-53331)

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

    lwt: Fix return values of BPF xmit ops (CVE-2023-53338)

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

    btrfs: fix BUG_ON condition in btrfs_cancel_balance (CVE-2023-53339)

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

    skbuff: skb_segment, Call zero copy functions before using skbuff frags (CVE-2023-53354)

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

    tracing: Fix race issue between cpu buffer write and swap (CVE-2023-53368)

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

    ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer (CVE-2023-53395)

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

    HID: multitouch: Correct devm device reference for hidinput input_dev name (CVE-2023-53454)

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

    scsi: qla4xxx: Add length check when parsing nlattrs (CVE-2023-53456)

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

    FS: JFS: Fix null-ptr-deref Read in txBegin (CVE-2023-53457)

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

    af_unix: Fix null-ptr-deref in unix_stream_sendpage(). (CVE-2023-53469)

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

    kobject: Add sanity check for kset->kobj.ktype in kset_register() (CVE-2023-53480)

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

    fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev (CVE-2023-53485)

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

    powerpc/rtas_flash: allow user copy to flash block cache objects (CVE-2023-53487)

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

    xfrm: fix slab-use-after-free in decode_session6 (CVE-2023-53500)

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

    virtio-mmio: don't break lifecycle of vm_dev (CVE-2023-53515)

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

    PM / devfreq: Fix leak in devfreq_dev_release() (CVE-2023-53518)

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

    ip_vti: fix potential slab-use-after-free in decode_session6 (CVE-2023-53559)

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

    cifs: Release folio lock on fscache read hit. (CVE-2023-53593)

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

    ipmi_si: fix a memleak in try_smi_init() (CVE-2023-53611)

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

    jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount (CVE-2023-53616)

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

    gfs2: Fix possible data races in gfs2_show_options() (CVE-2023-53622)

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

    btrfs: output extra debug info if we failed to find an inline backref (CVE-2023-53672)

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

    scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (CVE-2023-53676)

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

    md: raid1: fix potential OOB in raid1_remove_disk() (CVE-2023-53722)

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

    FS: JFS: Check for read-only mounted filesystem in txBegin (CVE-2023-53766)

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

    dccp: Fix out of bounds access in DCCP error handler (CVE-2023-53782)

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

    crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() (CVE-2023-53817)

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

    ip6_vti: fix slab-use-after-free in decode_session6 (CVE-2023-53821)

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

    kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). (CVE-2023-53825)

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

    net: read sk->sk_family once in sk_mc_loop() (CVE-2023-53831)

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

    net: ipv4: fix one memleak in __inet_del_ifa() (CVE-2023-53995)

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

    af_unix: Fix data-race around unix_tot_inflight. (CVE-2023-54006)

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

    audit: fix possible soft lockup in __audit_inode_child() (CVE-2023-54045)

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

    net: do not allow gso_size to be set to GSO_BY_FRAGS (CVE-2023-54051)

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

    kcm: Fix memory leak in error path of kcm_sendmsg() (CVE-2023-54112)

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

    fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() (CVE-2023-54127)

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

    autofs: fix memory leak of waitqueues in autofs_catatonic_mode (CVE-2023-54134)

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

    nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse (CVE-2023-54140)

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

    quota: fix warning in dqgrab() (CVE-2023-54177)

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

    of: unittest: fix null pointer dereferencing in of_unittest_find_node_by_name() (CVE-2023-54178)

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

    Revert IB/isert: Fix incorrect release of isert connection (CVE-2023-54219)

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

    serial: 8250: Fix oops for port->pm on uart_change_pm() (CVE-2023-54220)

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

    amba: bus: fix refcount leak (CVE-2023-54230)

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

    usb: typec: bus: verify partner exists in typec_altmode_attention (CVE-2023-54299)

    A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm     scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific     socket configuration, which could allow a local user to crash the system or escalate their privileges on     the system. (CVE-2023-6176)

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 4.14.326-245.539. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2023-2264 advisory.

    A flaw was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to directly dereference a NULL pointer in     xfrm_update_ae_params(), leading to a possible kernel crash and denial of service. (CVE-2023-3772)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The xt_u32 module did not validate the     fields in the xt_u32 structure. This flaw allows a local privileged attacker to trigger an out-of-bounds     read by setting the size fields with a value beyond the array boundaries, leading to a crash or     information disclosure. (CVE-2023-39192)

    A flaw was found in the Netfilter subsystem in the Linux kernel. The sctp_mt_check did not validate the     flag_count field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds     read, leading to a crash or information disclosure. (CVE-2023-39193)

    A flaw was found in the XFRM subsystem in the Linux kernel. The specific flaw exists within the processing     of state filters, which can result in a read past the end of an allocated buffer. This flaw allows a local     privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, potentially leading to an     information disclosure. (CVE-2023-39194)

    A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to     achieve local privilege escalation.

    When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the     new instance of the filter. This causes a problem when updating a filter bound to a class, as     tcf_unbind_filter() is always called on the old instance in the success path, decreasing filter_cnt of the     still referenced class and allowing it to be deleted, leading to a use-after-free.

    We recommend upgrading past commit 76e42ae831991c828cffa8c37736ebfb831ad5ec. (CVE-2023-4207)

    A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to     achieve local privilege escalation.

    Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage     collection, it is possible to underflow the reference counter causing a use-after-free vulnerability.

    We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. (CVE-2023-4244)

    The upstream commit describes this issue as follows:

    The missing IP_SET_HASH_WITH_NET0 macro in ip_set_hash_netportnet can lead to the use of wrong     `CIDR_POS(c)` for calculating array offsets, which can lead to integer underflow. As a result, it leads to     slab out-of-bound access. (CVE-2023-42753)

    A flaw was found in rsvp_change(). The root cause is an slab-out-of-bound access, but since the offset to     the original pointer is an `unsign int` fully controlled by users, the behavior is usually a wild pointer     access. (CVE-2023-42755)

    An issue was discovered in drivers/net/ethernet/intel/igb/igb_main.c in the IGB driver in the Linux kernel     before 6.5.3. A buffer size may not be adequate for frames larger than the MTU. (CVE-2023-45871)

    A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local     privilege escalation.

    The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without     locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that     is being released by garbage collection, resulting in use-after-free.

    We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c. (CVE-2023-4622)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control)     component can be exploited to achieve local privilege escalation.

    If a class with a link-sharing curve (i.e. with the HFSC_FSC flag set) has a parent without a link-sharing     curve, then init_vf() will call vttree_insert() on the parent, but vttree_remove() will be skipped in     update_vf(). This leaves a dangling pointer that can cause a use-after-free.

    We recommend upgrading past commit b3d26c5702c7d6c45456326e56d2ccf3f103e60f. (CVE-2023-4623)

    A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to     achieve local privilege escalation.

    When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free     in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in     agg_dequeue().

    We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. (CVE-2023-4921)

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

    xfrm: add NULL check in xfrm_update_ae_params (CVE-2023-53147)

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

    udf: Fix uninitialized array access for some pathnames (CVE-2023-53165)

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

    scsi: core: Fix possible memory leak if device_add() fails (CVE-2023-53174)

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

    netfilter: ipset: add the missing IP_SET_HASH_WITH_NET0 macro for ip_set_hash_netportnet.c     (CVE-2023-53179)

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

    af_unix: Fix data-races around user->unix_inflight. (CVE-2023-53204)

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

    scsi: storvsc: Fix handling of virtual Fibre Channel timeouts (CVE-2023-53245)

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

    drm/radeon: Fix integer overflow in radeon_cs_parser_init (CVE-2023-53309)

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

    nilfs2: fix use-after-free of nilfs_root in dirtying inodes via iput (CVE-2023-53311)

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

    pstore/ram: Check start of empty przs during init (CVE-2023-53331)

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

    ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer (CVE-2023-53395)

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

    HID: multitouch: Correct devm device reference for hidinput input_dev name (CVE-2023-53454)

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

    scsi: qla4xxx: Add length check when parsing nlattrs (CVE-2023-53456)

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

    FS: JFS: Fix null-ptr-deref Read in txBegin (CVE-2023-53457)

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

    af_unix: Fix null-ptr-deref in unix_stream_sendpage(). (CVE-2023-53469)

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

    kobject: Add sanity check for kset->kobj.ktype in kset_register() (CVE-2023-53480)

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

    fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev (CVE-2023-53485)

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

    PM / devfreq: Fix leak in devfreq_dev_release() (CVE-2023-53518)

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

    ip_vti: fix potential slab-use-after-free in decode_session6 (CVE-2023-53559)

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

    cifs: Release folio lock on fscache read hit. (CVE-2023-53593)

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

    jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount (CVE-2023-53616)

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

    gfs2: Fix possible data races in gfs2_show_options() (CVE-2023-53622)

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

    btrfs: output extra debug info if we failed to find an inline backref (CVE-2023-53672)

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

    scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() (CVE-2023-53676)

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

    md: raid1: fix potential OOB in raid1_remove_disk() (CVE-2023-53722)

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

    FS: JFS: Check for read-only mounted filesystem in txBegin (CVE-2023-53766)

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

    dccp: Fix out of bounds access in DCCP error handler (CVE-2023-53782)

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

    crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() (CVE-2023-53817)

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

    ip6_vti: fix slab-use-after-free in decode_session6 (CVE-2023-53821)

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

    kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg(). (CVE-2023-53825)

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

    net: read sk->sk_family once in sk_mc_loop() (CVE-2023-53831)

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

    dccp: fix data-race around dp->dccps_mss_cache (CVE-2023-53839)

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

    usb-storage: alauda: Fix uninit-value in alauda_check_media() (CVE-2023-53847)

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

    af_unix: Fix data-race around unix_tot_inflight. (CVE-2023-54006)

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

    audit: fix possible soft lockup in __audit_inode_child() (CVE-2023-54045)

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

    net: do not allow gso_size to be set to GSO_BY_FRAGS (CVE-2023-54051)

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

    kcm: Fix memory leak in error path of kcm_sendmsg() (CVE-2023-54112)

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

    fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount() (CVE-2023-54127)

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

    autofs: fix memory leak of waitqueues in autofs_catatonic_mode (CVE-2023-54134)

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

    nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse (CVE-2023-54140)

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

    quota: fix warning in dqgrab() (CVE-2023-54177)

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

    of: unittest: fix null pointer dereferencing in of_unittest_find_node_by_name() (CVE-2023-54178)

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

    Revert IB/isert: Fix incorrect release of isert connection (CVE-2023-54219)

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

    serial: 8250: Fix oops for port->pm on uart_change_pm() (CVE-2023-54220)

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

    amba: bus: fix refcount leak (CVE-2023-54230)

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.

ID	Name	Product	Family	Severity
297194	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2026:0315-1)	Nessus	SuSE Local Security Checks	high
297191	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0317-1)	Nessus	SuSE Local Security Checks	high
296680	SUSE SLES15 / openSUSE 15 Security Update : kernel (SUSE-SU-2026:0293-1)	Nessus	SuSE Local Security Checks	high
296676	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0281-1)	Nessus	SuSE Local Security Checks	high
296481	SUSE SLES15 Security Update : kernel (SUSE-SU-2026:0278-1)	Nessus	SuSE Local Security Checks	high
280047	Linux Distros Unpatched Vulnerability : CVE-2023-54127	Nessus	Misc.	high
183265	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-041 (ALASKERNEL-5.10-2023-041)	Nessus	Amazon Linux Local Security Checks	high
182660	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-053 (ALASKERNEL-5.4-2023-053)	Nessus	Amazon Linux Local Security Checks	high
182628	Amazon Linux 2 : kernel, --advisory ALAS2-2023-2264 (ALAS-2023-2264)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2023-54127

medium

Tenable Plugins

high

high

high

high

high

high

high

high

high