In the Linux kernel, the following vulnerability has been resolved: bpf, cpumap: Handle skb as well when clean up ptr_ring The following warning was reported when running xdp_redirect_cpu with both skb-mode and stress-mode enabled: ------------[ cut here ]------------ Incorrect XDP memory type (-2128176192) usage WARNING: CPU: 7 PID: 1442 at net/core/xdp.c:405 Modules linked in: CPU: 7 PID: 1442 Comm: kworker/7:0 Tainted: G 6.5.0-rc2+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996) Workqueue: events __cpu_map_entry_free RIP: 0010:__xdp_return+0x1e4/0x4a0 ...... Call Trace: <TASK> ? show_regs+0x65/0x70 ? __warn+0xa5/0x240 ? __xdp_return+0x1e4/0x4a0 ...... xdp_return_frame+0x4d/0x150 __cpu_map_entry_free+0xf9/0x230 process_one_work+0x6b0/0xb80 worker_thread+0x96/0x720 kthread+0x1a5/0x1f0 ret_from_fork+0x3a/0x70 ret_from_fork_asm+0x1b/0x30 </TASK> The reason for the warning is twofold. One is due to the kthread cpu_map_kthread_run() is stopped prematurely. Another one is __cpu_map_ring_cleanup() doesn't handle skb mode and treats skbs in ptr_ring as XDP frames. Prematurely-stopped kthread will be fixed by the preceding patch and ptr_ring will be empty when __cpu_map_ring_cleanup() is called. But as the comments in __cpu_map_ring_cleanup() said, handling and freeing skbs in ptr_ring as well to "catch any broken behaviour gracefully".

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:4057-1 advisory.

    The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues

    The following security issues were fixed:

    - CVE-2025-38008: mm/page_alloc: fix race condition in unaccepted memory handling (bsc#1244939).
    - CVE-2025-38539: trace/fgraph: Fix the warning caused by missing unregister notifier (bsc#1248211).
    - CVE-2025-38552: mptcp: plug races between subflow fail and subflow creation (bsc#1248230).
    - CVE-2025-38653: proc: use the same treatment to check proc_lseek as ones for proc_read_iter et.al     (bsc#1248630).
    - CVE-2025-38699: scsi: bfa: Double-free fix (bsc#1249224).
    - CVE-2025-38700: scsi: libiscsi: Initialize iscsi_conn->dd_data only if memory is allocated     (bsc#1249182).
    - CVE-2025-38718: sctp: linearize cloned gso packets in sctp_rcv (bsc#1249161).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-38735: gve: prevent ethtool ops after shutdown (bsc#1249288).
    - CVE-2025-39673: ppp: fix race conditions in ppp_fill_forward_path (bsc#1249320).
    - CVE-2025-39676: scsi: qla4xxx: Prevent a potential error pointer dereference (bsc#1249302).
    - CVE-2025-39683: tracing: Limit access to parser->buffer when trace_get_user failed (bsc#1249286).
    - CVE-2025-39697: nfs: remove dead code for the old swap over NFS implementation (bsc#1249319).
    - CVE-2025-39702: ipv6: sr: Fix MAC comparison to be constant-time (bsc#1249317).
    - CVE-2025-39756: fs: Prevent file descriptor table allocations exceeding INT_MAX (bsc#1249512).
    - CVE-2025-39794: ARM: tegra: Use I/O memcpy to write to IRAM (bsc#1249595).
    - CVE-2025-39810: bnxt_en: Fix memory corruption when FW resources change during ifdown (bsc#1249975).
    - CVE-2025-39812: sctp: initialize more fields in sctp_v6_from_sk() (bsc#1250202).
    - CVE-2025-39813: ftrace: Fix potential warning in trace_printk_seq during ftrace_dump (bsc#1250032).
    - CVE-2025-39828: atm: atmtcp: Prevent arbitrary write in atmtcp_recv_control() (bsc#1250205).
    - CVE-2025-39832: net/mlx5: Add sync reset drop mode support (bsc#1249901).
    - CVE-2025-39847: ppp: fix memory leak in pad_compress_skb (bsc#1250292).
    - CVE-2025-39850: vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects (bsc#1250276).
    - CVE-2025-39851: vxlan: Fix NPD when refreshing an FDB entry with a nexthop object (bsc#1250296).
    - CVE-2025-39853: i40e: Fix potential invalid access when MAC list is empty (bsc#1250275).
    - CVE-2025-39854: ice: fix NULL access of tx->in_use in ice_ll_ts_intr (bsc#1250297).
    - CVE-2025-39866: fs: writeback: fix use-after-free in __mark_inode_dirty() (bsc#1250455).
    - CVE-2025-39876: net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable() (bsc#1250400).
    - CVE-2025-39881: kernfs: Fix UAF in polling when open file is released (bsc#1250379).
    - CVE-2025-39895: sched: Fix sched_numa_find_nth_cpu() if mask offline (bsc#1250721).
    - CVE-2025-39898: e1000e: fix heap overflow in e1000_set_eeprom (bsc#1250742).
    - CVE-2025-39900: net_sched: gen_estimator: fix est_timer() vs CONFIG_PREEMPT_RT=y (bsc#1250758).
    - CVE-2025-39902: mm/slub: avoid accessing metadata when pointer is invalid in object_err() (bsc#1250702).
    - CVE-2025-39911: i40e: fix IRQ freeing in i40e_vsi_request_irq_msix error path (bsc#1250704).
    - CVE-2025-39945: cnic: Fix use-after-free bugs in cnic_delete_task (bsc#1251230).
    - CVE-2025-39946: tls: make sure to abort the stream if headers are bogus (bsc#1251114).
    - CVE-2025-39947: net/mlx5e: Harden uplink netdev access against device unbind (bsc#1251232).
    - CVE-2025-39948: ice: fix Rx page leak on multi-buffer frames (bsc#1251233).
    - CVE-2025-39949: qed: Don't collect too many protection override GRC elements (bsc#1251177).
    - CVE-2025-39955: tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect() (bsc#1251804).
    - CVE-2025-39968: i40e: add max boundary check for VF filters (bsc#1252047).
    - CVE-2025-39969: i40e: fix validation of VF state in get resources (bsc#1252044).
    - CVE-2025-39970: i40e: fix input validation logic for action_meta (bsc#1252051).
    - CVE-2025-39971: i40e: fix idx validation in config queues msg (bsc#1252052).
    - CVE-2025-39972: i40e: fix idx validation in i40e_validate_queue_map (bsc#1252039).
    - CVE-2025-39973: i40e: add validation for ring_len param (bsc#1252035).
    - CVE-2025-39978: octeontx2-pf: Fix potential use after free in otx2_tc_add_flow() (bsc#1252069).
    - CVE-2025-39984: net: tun: Update napi->skb after XDP process (bsc#1252081).
    - CVE-2025-40000: wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait() (bsc#1252062).
    - CVE-2025-40005: spi: cadence-quadspi: Implement refcount to handle unbind during busy (bsc#1252349).
    - CVE-2025-40012: net/smc: fix warning in smc_rx_splice() when calling get_page() (bsc#1252330).
    - CVE-2025-40018: ipvs: Defer ip_vs_ftp unregister during netns cleanup (bsc#1252688).
    - CVE-2025-40051: vhost: vringh: Modify the return value check (bsc#1252858).
    - CVE-2025-40056: vhost: vringh: Fix copy_to_iter return value check (bsc#1252826).
    - CVE-2025-40060: coresight: trbe: Return NULL pointer for allocation failures (bsc#1252848).
    - CVE-2025-40078: bpf: Explicitly check accesses to bpf_sock_addr (bsc#1252789).
    - CVE-2025-40100: btrfs: do not assert we found block group item when creating free space tree     (bsc#1252918).

    The following non security issues were fixed:

    - ACPI/processor_idle: Add FFH state handling (jsc#PED-13815).
    - ACPI/processor_idle: Export acpi_processor_ffh_play_dead() (jsc#PED-13815).
    - ACPI: battery: Add synchronization between interface updates (git-fixes).
    - ACPI: processor: Rescan 'dead' SMT siblings during initialization (jsc#PED-13815).
    - KVM: PPC: Fix misleading interrupts comment in kvmppc_prepare_to_enter() (bsc#1215199).
    - KVM: x86: Plumb in the vCPU to kvm_x86_ops.hwapic_isr_update() (git-fixes).
    - KVM: x86: Process 'guest stopped request' once per guest time update (git-fixes).
    - PM: hibernate: Add pm_hibernation_mode_is_suspend() (bsc#1243112).
    - PM: hibernate: Add stub for pm_hibernate_is_recovering() (bsc#1243112).
    - PM: hibernate: Fix pm_hibernation_mode_is_suspend() build breakage (bsc#1243112).
    - PM: hibernate: add new api pm_hibernate_is_recovering() (bsc#1243112).
    - bpf: Allow helper bpf_get_[ns_]current_pid_tgid() for all prog types (bsc#1252364).
    - cpufreq: intel_pstate: Fix object lifecycle issue in update_qos_request() (stable-fixes git-fixes).
    - cpuidle: Do not return from cpuidle_play_dead() on callback failures (jsc#PED-13815).
    - dpll: Make ZL3073X invisible (bsc#1252253).
    - dpll: zl3073x: Add firmware loading functionality (bsc#1252253).
    - dpll: zl3073x: Add functions to access hardware registers (bsc#1252253).
    - dpll: zl3073x: Add low-level flash functions (bsc#1252253).
    - dpll: zl3073x: Add support to get fractional frequency offset (bsc#1252253).
    - dpll: zl3073x: Add support to get phase offset on connected input pin (bsc#1252253).
    - dpll: zl3073x: Add support to get/set esync on pins (bsc#1252253).
    - dpll: zl3073x: Fix build failure (bsc#1252253).
    - dpll: zl3073x: Fix double free in zl3073x_devlink_flash_update() (bsc#1252253).
    - dpll: zl3073x: Handle missing or corrupted flash configuration (bsc#1252253).
    - dpll: zl3073x: Implement devlink flash callback (bsc#1252253).
    - dpll: zl3073x: Increase maximum size of flash utility (bsc#1252253).
    - dpll: zl3073x: Refactor DPLL initialization (bsc#1252253).
    - dpll: zl3073x: ZL3073X_I2C and ZL3073X_SPI should depend on NET (bsc#1252253).
    - drm/amd : Update MES API header file for v11 & v12 (stable-fixes).
    - drm/amd/amdgpu: Implement MES suspend/resume gang functionality for v12 (bsc#1243112).
    - drm/amd/display: Add NULL check for stream before dereference in 'dm_vupdate_high_irq' (bsc#1243112).
    - drm/amd/display: Enable Dynamic DTBCLK Switch (bsc#1243112).
    - drm/amd/display: Fix vupdate_offload_work doc (bsc#1243112).
    - drm/amd/display: fix dmub access race condition (bsc#1243112).
    - drm/amd/display: more liberal vmin/vmax update for freesync (bsc#1243112).
    - drm/amd/include : MES v11 and v12 API header update (stable-fixes).
    - drm/amd/include : Update MES v12 API for fence update (stable-fixes).
    - drm/amd/pm: fix smu table id bound check issue in smu_cmn_update_table() (git-fixes).
    - drm/amd: Avoid evicting resources at S5 (bsc#1243112).
    - drm/amd: Check whether secure display TA loaded successfully (bsc#1243112).
    - drm/amd: Fix hybrid sleep (bsc#1243112).
    - drm/amd: Only restore cached manual clock settings in restore if OD enabled (bsc#1243112).
    - drm/amd: Restore cached manual clock settings during resume (bsc#1243112).
    - drm/amdgpu/mes11: implement detect and reset callback (bsc#1243112).
    - drm/amdgpu/mes12: implement detect and reset callback (bsc#1243112).
    - drm/amdgpu/mes: add front end for detect and reset hung queue (bsc#1243112).
    - drm/amdgpu/vpe: cancel delayed work in hw_fini (bsc#1243112).
    - drm/amdgpu: Avoid rma causes GPU duplicate reset (bsc#1243112).
    - drm/amdgpu: Fix for GPU reset being blocked by KIQ I/O (bsc#1243112).
    - drm/amdgpu: Report individual reset error (bsc#1243112).
    - drm/amdgpu: do not resume device in thaw for normal hibernation (bsc#1243112).
    - drm/amdgpu: fix link error for !PM_SLEEP (bsc#1243112).
    - drm/amdkfd: Fix mmap write lock not release (bsc#1243112).
    - drm/xe/guc: Prepare GuC register list and update ADS size for error capture (stable-fixes).
    - ext4: fix checks for orphan inodes (bsc#1250119).
    - hfsplus: fix KMSAN uninit-value issue in hfsplus_delete_cat() (git-fixes).
    - intel_idle: Provide the default enter_dead() handler (jsc#PED-13815).
    - intel_idle: Rescan 'dead' SMT siblings during initialization (jsc#PED-13815).
    - intel_idle: Use subsys_initcall_sync() for initialization (jsc#PED-13815).
    - ixgbe: handle IXGBE_VF_FEATURES_NEGOTIATE mbox cmd (bsc#1247222).
    - ixgbe: handle IXGBE_VF_GET_PF_LINK_STATE mailbox operation (bsc#1247222).
    - ixgbevf: fix getting link speed data for E610 devices (bsc#1247222).
    - ixgbevf: fix mailbox API compatibility by negotiating supported features (bsc#1247222).
    - kdb: Replace deprecated strcpy() with memmove() in vkdb_printf() (bsc#1252939).
    - net: mana: Use page pool fragments for RX buffers instead of full pages to improve memory efficiency     (bsc#1248754).
    - netfilter: nft_objref: validate objref and objrefmap expressions (bsc#1250237).
    - nvme-auth: update bi_directional flag (git-fixes bsc#1249735).
    - nvme-auth: update sc_c in host response (git-fixes bsc#1249397).
    - nvme-fc: use lock accessing port_state and rport state (bsc#1245193 bsc#1247500).
    - nvme-tcp: send only permitted commands for secure concat (git-fixes bsc#1247683).
    - nvmet-fc: avoid scheduling association deletion twice (bsc#1245193 bsc#1247500).
    - nvmet-fc: move lsop put work to nvmet_fc_ls_req_op (bsc#1245193 bsc#1247500).
    - nvmet-fcloop: call done callback even when remote port is gone (bsc#1245193 bsc#1247500).
    - perf/x86/intel: Allow to update user space GPRs from PEBS records (git-fixes).
    - perf/x86/intel: Fix crash in icl_update_topdown_event() (git-fixes).
    - phy: cadence: cdns-dphy: Update calibration wait time for startup state machine (git-fixes).
    - platform/x86/amd/pmc: Add 1Ah family series to STB support list (bsc#1243112).
    - platform/x86/amd/pmc: Add MECHREVO Yilong15Pro to spurious_8042 list (bsc#1243112).
    - platform/x86/amd/pmc: Add Stellaris Slim Gen6 AMD to spurious 8042 quirks list (bsc#1243112).
    - platform/x86/amd/pmc: Add VPE information for AMDI000A platform (bsc#1243112).
    - platform/x86/amd/pmc: Add idlemask support for 1Ah family (bsc#1243112).
    - platform/x86/amd/pmc: Extend support for PMC features on new AMD platform (bsc#1243112).
    - platform/x86/amd/pmc: Fix SMU command submission path on new AMD platform (bsc#1243112).
    - platform/x86/amd/pmc: Modify SMU message port for latest AMD platform (bsc#1243112).
    - platform/x86/amd/pmc: Notify user when platform does not support s0ix transition (bsc#1243112).
    - platform/x86/amd/pmc: Remove unnecessary line breaks (bsc#1243112).
    - platform/x86/amd/pmc: Send OS_HINT command for AMDI000A platform (bsc#1243112).
    - platform/x86/amd/pmc: Send OS_HINT command for new AMD platform (bsc#1243112).
    - platform/x86/amd/pmc: Update IP information structure for newer SoCs (bsc#1243112).
    - platform/x86/amd/pmc: Use ARRAY_SIZE() to fill num_ips information (bsc#1243112).
    - platform/x86/amd/pmc: call amd_pmc_get_ip_info() during driver probe (bsc#1243112).
    - platform/x86/amd: pmc: Add new ACPI ID AMDI000B (bsc#1243112).
    - platform/x86/amd: pmc: Drop SMU F/W match for Cezanne (bsc#1243112).
    - platform/x86/amd: pmc: Use guard(mutex) (bsc#1243112).
    - powerpc/boot: Fix build with gcc 15 (bsc#1215199).
    - powerpc/fadump: skip parameter area allocation when fadump is disabled (jsc#PED-9891 git-fixes).
    - powerpc/kvm: Fix ifdef to remove build warning (bsc#1215199).
    - powerpc/powernv/pci: Fix underflow and leak issue (bsc#1215199).
    - powerpc/pseries/msi: Fix potential underflow and leak issue (bsc#1215199).
    - powerpc: floppy: Add missing checks after DMA map (bsc#1215199).
    - proc: fix missing pde_set_flags() for net proc files (bsc#1248630)
    - proc: fix type confusion in pde_set_flags() (bsc#1248630)
    - sched/idle: Conditionally handle tick broadcast in default_idle_call() (bsc#1248517).
    - scsi: fc: Avoid -Wflex-array-member-not-at-end warnings (bsc#1250519).
    - scsi: lpfc: Abort outstanding ELS WQEs regardless of if rmmod is in progress (bsc#1250519).
    - scsi: lpfc: Check return status of lpfc_reset_flush_io_context during TGT_RESET (bsc#1250519).
    - scsi: lpfc: Clean up allocated queues when queue setup mbox commands fail (bsc#1250519).
    - scsi: lpfc: Copyright updates for 14.4.0.11 patches (bsc#1250519).
    - scsi: lpfc: Decrement ndlp kref after FDISC retries exhausted (bsc#1250519).
    - scsi: lpfc: Ensure PLOGI_ACC is sent prior to PRLI in Point to Point topology (bsc#1250519).
    - scsi: lpfc: Fix buffer free/clear order in deferred receive path (bsc#1250519).
    - scsi: lpfc: Fix wrong function reference in a comment (bsc#1250519).
    - scsi: lpfc: Remove ndlp kref decrement clause for F_Port_Ctrl in lpfc_cleanup (bsc#1250519).
    - scsi: lpfc: Remove redundant assignment to avoid memory leak (bsc#1250519).
    - scsi: lpfc: Remove unused member variables in struct lpfc_hba and lpfc_vport (bsc#1250519).
    - scsi: lpfc: Update lpfc version to 14.4.0.11 (bsc#1250519).
    - scsi: lpfc: Use int type to store negative error codes (bsc#1250519).
    - scsi: lpfc: use min() to improve code (bsc#1250519).
    - serial: sc16is7xx: rename Kconfig CONFIG_SERIAL_SC16IS7XX_CORE (bsc#1252469) Re-enable     CONFIG_SERIAL_SC16IS7X for aarch64 and x86_64 default configurations, but keep it disabled for kvmsmall     configurations. For ppc64 and s390x drivers was not enabled, so keep it that way. Add sc16is7xx_spi and     sc16is7xx_i2c drivers to supported list.
    - skmsg: Return copied bytes in sk_msg_memcopy_from_iter (bsc#1250650).
    - smb: client: fix crypto buffers in non-linear memory (bsc#1250491, bsc#1239206).
    - smb: client: fix potential cfid UAF in smb2_query_info_compound (bsc#1248886).
    - tcp_bpf: Fix copied value in tcp_bpf_sendmsg (bsc#1250650).
    - tracing: Remove unneeded goto out logic (bsc#1249286).
    - x86/idle: Sanitize X86_BUG_AMD_E400 handling (bsc#1248517).
    - x86/resctrl: Fix miscount of bandwidth event when reactivating previously unavailable RMID     (bsc#1252734).
    - x86/resctrl: Refactor resctrl_arch_rmid_read() (bsc#1252734).
    - x86/smp: Allow calling mwait_play_dead with an arbitrary hint (jsc#PED-13815).
    - x86/smp: Fix mwait_play_dead() and acpi_processor_ffh_play_dead() noreturn behavior (jsc#PED-13815).
    - x86/smp: PM/hibernate: Split arch_resume_nosmt() (jsc#PED-13815).
    - x86/topology: Implement topology_is_core_online() to address SMT regression (jsc#PED-13815).

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.

  - bpf, cpumap: Handle skb as well when clean up ptr_ring The following warning was reported when running     xdp_redirect_cpu with both skb-mode and stress-mode enabled: ------------[ cut here ]------------     Incorrect XDP memory type (-2128176192) usage WARNING: CPU: 7 PID: 1442 at net/core/xdp.c:405 Modules     linked in: CPU: 7 PID: 1442 Comm: kworker/7:0 Tainted: G 6.5.0-rc2+ #1 Hardware name: QEMU Standard PC     (i440FX + PIIX, 1996) Workqueue: events __cpu_map_entry_free RIP: 0010:__xdp_return+0x1e4/0x4a0 ......
    Call Trace: <TASK> ? show_regs+0x65/0x70 ? __warn+0xa5/0x240 ? __xdp_return+0x1e4/0x4a0 ......
    xdp_return_frame+0x4d/0x150 __cpu_map_entry_free+0xf9/0x230 process_one_work+0x6b0/0xb80     worker_thread+0x96/0x720 kthread+0x1a5/0x1f0 ret_from_fork+0x3a/0x70 ret_from_fork_asm+0x1b/0x30 </TASK>     The reason for the warning is twofold. One is due to the kthread cpu_map_kthread_run() is stopped     prematurely. Another one is __cpu_map_ring_cleanup() doesn't handle skb mode and treats skbs in ptr_ring     as XDP frames. Prematurely-stopped kthread will be fixed by the preceding patch and ptr_ring will be empty     when __cpu_map_ring_cleanup() is called. But as the comments in __cpu_map_ring_cleanup() said, handling     and freeing skbs in ptr_ring as well to catch any broken behaviour gracefully. (CVE-2023-53660)

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

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-330 advisory.

    A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss     of confidentiality. (CVE-2023-20588)

    The fix for XSA-423 added logic to Linux'es netback driver to deal witha frontend splitting a packet in a     way such that not all of the headerswould come in one piece.  Unfortunately the logic introduced     theredidn't account for the extreme case of the entire packet being splitinto as many pieces as permitted     by the protocol, yet still beingsmaller than the area that's specially dealt with to keep all     (possible)headers together.  Such an unusual packet would therefore trigger abuffer overrun in the driver.
    (CVE-2023-34319)

    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 Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of     XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data     to userspace. (CVE-2023-3773)

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

    When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the     chain's owner rule can also release the objects in certain circumstances.

    We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. (CVE-2023-3777)

    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 flaw was found in the Linux kernel's netfilter in the way a user triggers the     nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local     user to crash the system or potentially escalate their privileges on the system. (CVE-2023-4004)

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

    On an error when building a nftables rule, deactivating immediate expressions in     nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.

    We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2. (CVE-2023-4015)

    A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in     the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to     incorrect handling of the existing filter, leading to a kernel information leak issue. (CVE-2023-4128)

    netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID (CVE-2023-4147)

    A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 (tun: tun_chr_open(): correctly initialize socket uid), - 66b2c338adce (tap: tap_open():
    correctly initialize socket uid), pass inode->i_uid to sock_init_data_uid() as the last parameter and     that turns out to not be accurate. (CVE-2023-4194)

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

    When route4_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 b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8. (CVE-2023-4206)

    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 net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.

    When u32_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 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81. (CVE-2023-4208)

    A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation     of the file name reconstruction function, which is responsible for reading file name entries from a     directory index and merging file name parts belonging to one file into a single long file name. Since the     file name characters are copied into a stack variable, a local privileged attacker could use this flaw to     overflow the kernel stack. (CVE-2023-4273)

    A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux     Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which     can result in a memory leak. (CVE-2023-4569)

    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)

    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:

    igb: Fix igb_down hung on surprise removal (CVE-2023-53148)

    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:

    dma-buf/dma-resv: Stop leaking on krealloc() failure (CVE-2023-53181)

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

    btrfs: exit gracefully if reloc roots don't match (CVE-2023-53183)

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

    vxlan: Fix nexthop hash size (CVE-2023-53192)

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

    sched/fair: Don't balance task to its current running CPU (CVE-2023-53215)

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

    smb: client: fix warning in cifs_smb3_do_mount() (CVE-2023-53230)

    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:

    btrfs: set_page_extent_mapped after read_folio in btrfs_cont_expand (CVE-2023-53247)

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

    ovl: fix null pointer dereference in ovl_permission() (CVE-2023-53260)

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

    drm/client: Fix memory leak in drm_client_modeset_probe (CVE-2023-53288)

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

    netfilter: nft_set_rbtree: fix overlap expiration walk (CVE-2023-53304)

    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:

    fs/ntfs3: Enhance sanity check while generating attr_list (CVE-2023-53328)

    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:

    ip6mr: Fix skb_under_panic in ip6mr_cache_report() (CVE-2023-53365)

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

    net: dcb: choose correct policy to parse DCB_ATTR_BCN (CVE-2023-53369)

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

    mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() (CVE-2023-53401)

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

    drm/ttm: fix bulk_move corruption when adding a entry (CVE-2023-53444)

    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:

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

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

    mptcp: fix disconnect vs accept race (CVE-2023-53490)

    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:

    rcu-tasks: Avoid pr_info() with spin lock in cblist_init_generic() (CVE-2023-53558)

    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:

    bpf, cpumap: Make sure kthread is running before map update returns (CVE-2023-53577)

    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:

    cifs: fix mid leak during reconnection after timeout threshold (CVE-2023-53597)

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

    tunnels: fix kasan splat when generating ipv4 pmtu error (CVE-2023-53600)

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

    btrfs: reject invalid reloc tree root keys with stack dump (CVE-2023-53618)

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

    bpf, cpumap: Handle skb as well when clean up ptr_ring (CVE-2023-53660)

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

    xsk: fix refcount underflow in error path (CVE-2023-53698)

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

    ring-buffer: Do not swap cpu_buffer during resize process (CVE-2023-53718)

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 5.15.128-80.144. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-026 advisory.

    Information exposure through microarchitectural state after transient execution in certain vector     execution units for some Intel(R) Processors may allow an authenticated user to potentially enable     information disclosure via local access. (CVE-2022-40982)

    A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss     of confidentiality. (CVE-2023-20588)

    The fix for XSA-423 added logic to Linux'es netback driver to deal witha frontend splitting a packet in a     way such that not all of the headerswould come in one piece.  Unfortunately the logic introduced     theredidn't account for the extreme case of the entire packet being splitinto as many pieces as permitted     by the protocol, yet still beingsmaller than the area that's specially dealt with to keep all     (possible)headers together.  Such an unusual packet would therefore trigger abuffer overrun in the driver.
    (CVE-2023-34319)

    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 Linux kernel's IP framework for transforming packets (XFRM subsystem). This issue     may allow a malicious user with CAP_NET_ADMIN privileges to cause a 4 byte out-of-bounds read of     XFRMA_MTIMER_THRESH when parsing netlink attributes, leading to potential leakage of sensitive heap data     to userspace. (CVE-2023-3773)

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

    When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the     chain's owner rule can also release the objects in certain circumstances.

    We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. (CVE-2023-3777)

    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 flaw was found in the Linux kernel's netfilter in the way a user triggers the     nft_pipapo_remove function with the element, without a NFT_SET_EXT_KEY_END. This issue could allow a local     user to crash the system or potentially escalate their privileges on the system. (CVE-2023-4004)

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

    On an error when building a nftables rule, deactivating immediate expressions in     nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used.

    We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2. (CVE-2023-4015)

    A use-after-free flaw was found in net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in     the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to     incorrect handling of the existing filter, leading to a kernel information leak issue. (CVE-2023-4128)

    netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID (CVE-2023-4147)

    A flaw was found in the Linux kernel's TUN/TAP functionality. This issue could allow a local user to     bypass network filters and gain unauthorized access to some resources. The original patches fixing     CVE-2023-1076 are incorrect or incomplete. The problem is that the following upstream commits -     a096ccca6e50 (tun: tun_chr_open(): correctly initialize socket uid), - 66b2c338adce (tap: tap_open():
    correctly initialize socket uid), pass inode->i_uid to sock_init_data_uid() as the last parameter and     that turns out to not be accurate. (CVE-2023-4194)

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

    When route4_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 b80b829e9e2c1b3f7aae34855e04d8f6ecaf13c8. (CVE-2023-4206)

    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 net/sched: cls_u32 component can be exploited to     achieve local privilege escalation.

    When u32_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 3044b16e7c6fe5d24b1cdbcf1bd0a9d92d1ebd81. (CVE-2023-4208)

    A flaw was found in the exFAT driver of the Linux kernel. The vulnerability exists in the implementation     of the file name reconstruction function, which is responsible for reading file name entries from a     directory index and merging file name parts belonging to one file into a single long file name. Since the     file name characters are copied into a stack variable, a local privileged attacker could use this flaw to     overflow the kernel stack. (CVE-2023-4273)

    A memory leak flaw was found in nft_set_catchall_flush in net/netfilter/nf_tables_api.c in the Linux     Kernel. This issue may allow a local attacker to cause double-deactivations of catchall elements, which     can result in a memory leak. (CVE-2023-4569)

    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)

    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:

    btrfs: exit gracefully if reloc roots don't match (CVE-2023-53183)

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

    vxlan: Fix nexthop hash size (CVE-2023-53192)

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

    smb: client: fix warning in cifs_smb3_do_mount() (CVE-2023-53230)

    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:

    RDMA/mlx5: Return the firmware result upon destroying QP/RQ (CVE-2023-53286)

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

    drm/client: Fix memory leak in drm_client_modeset_probe (CVE-2023-53288)

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

    netfilter: nft_set_rbtree: fix overlap expiration walk (CVE-2023-53304)

    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:

    fs/ntfs3: Enhance sanity check while generating attr_list (CVE-2023-53328)

    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:

    ip6mr: Fix skb_under_panic in ip6mr_cache_report() (CVE-2023-53365)

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

    net: dcb: choose correct policy to parse DCB_ATTR_BCN (CVE-2023-53369)

    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:

    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:

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

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

    bpf, cpumap: Make sure kthread is running before map update returns (CVE-2023-53577)

    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:

    tunnels: fix kasan splat when generating ipv4 pmtu error (CVE-2023-53600)

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

    btrfs: reject invalid reloc tree root keys with stack dump (CVE-2023-53618)

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

    bpf, cpumap: Handle skb as well when clean up ptr_ring (CVE-2023-53660)

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

    xsk: fix refcount underflow in error path (CVE-2023-53698)

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

    ring-buffer: Do not swap cpu_buffer during resize process (CVE-2023-53718)

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
275294	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2025:4057-1)	Nessus	SuSE Local Security Checks	high
269286	Linux Distros Unpatched Vulnerability : CVE-2023-53660	Nessus	Misc.	medium
181159	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-330)	Nessus	Amazon Linux Local Security Checks	high
180567	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-026 (ALASKERNEL-5.15-2023-026)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2023-53660

medium

Tenable Plugins

high

medium

high

high