In the Linux kernel, the following vulnerability has been resolved: smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break() leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break() _cifsFileInfo_put(cfile) cifsFileInfo_put_final() cifs_sb_deactive() [last ref, start releasing sb] kill_sb() kill_anon_super() generic_shutdown_super() evict_inodes() dispose_list() evict() destroy_inode() call_rcu(&inode->i_rcu, i_callback) spin_lock(&cinode->open_file_lock) <- OK [later] i_callback() cifs_free_inode() kmem_cache_free(cinode) spin_unlock(&cinode->open_file_lock) <- UAF cifs_done_oplock_break(cinode) <- UAF The issue occurs when umount has already released its reference to the superblock. When _cifsFileInfo_put() calls cifs_sb_deactive(), this releases the last reference, triggering the immediate cleanup of all inodes under RCU. However, cifs_oplock_break() continues to access the cinode after this point, resulting in use-after-free. Fix this by holding an extra reference to the superblock during the entire oplock break operation. This ensures that the superblock and its inodes remain valid until the oplock break completes.

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-20551 advisory.

    - scsi: fnic: Fix crash in fnic_wq_cmpl_handler when FDMI times out (Karan Tilak Kumar) [Orabug:
    38175020,38226429] {CVE-2025-38238}
    - KVM: x86/xen: Fix cleanup logic in emulation of Xen schedop poll hypercalls (Manuel Andreas) [Orabug:
    38254220] {CVE-2025-38469}
    - btrfs: fix block group refcount race in btrfs_create_pending_block_groups() (Boris Burkov) [Orabug:
    37844509] {CVE-2025-22115}
    - clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (Al Viro) [Orabug:
    38310005] {CVE-2025-38499}
    - efivarfs: Fix memory leak of efivarfs_fs_info in fs_context error paths (Breno Leitao) [Orabug:
    38324320] {CVE-2025-38549}
    - rxrpc: Fix recv-recv race of completed call (David Howells) [Orabug: 38324205] {CVE-2025-38524}
    - net/sched: Return NULL when htb_lookup_leaf encounters an empty rbtree (William Liu) [Orabug: 38254212]     {CVE-2025-38468}
    - net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime (Dong Chenchen) [Orabug:
    38254223] {CVE-2025-38470}
    - tls: always refresh the queue when reading sock (Jakub Kicinski) [Orabug: 38254232] {CVE-2025-38471}
    - virtio-net: fix recursived rtnl_lock() during probe() (Zigit Zo) [Orabug: 38324329] {CVE-2025-38551}
    - netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (Florian Westphal) [Orabug:
    38254235] {CVE-2025-38472}
    - ipv6: mcast: Delay put pmc->idev in mld_del_delrec() (Yue Haibing) [Orabug: 38324325] {CVE-2025-38550}
    - Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb() (Kuniyuki Iwashima) [Orabug: 38254239]     {CVE-2025-38473}
    - usb: net: sierra: check for no status endpoint (Oliver Neukum) [Orabug: 38254247] {CVE-2025-38474}
    - ice: add NULL check in eswitch lag check (Dave Ertman) [Orabug: 38324213] {CVE-2025-38526}
    - hwmon: (corsair-cpro) Validate the size of the received input buffer (Marius Zachmann) [Orabug:
    38324317] {CVE-2025-38548}
    - net: phy: Don't register LEDs for genphy (Sean Anderson) [Orabug: 38324260] {CVE-2025-38537}
    - smc: Fix various oops due to inet_sock type confusion. (Kuniyuki Iwashima) [Orabug: 38254256]     {CVE-2025-38475}
    - smb: client: fix use-after-free in cifs_oplock_break (Wang Zhaolong) [Orabug: 38324216] {CVE-2025-38527}
    - rpl: Fix use-after-free in rpl_do_srh_inline(). (Kuniyuki Iwashima) [Orabug: 38254259] {CVE-2025-38476}
    - net/sched: sch_qfq: Fix race condition on qfq_aggregate (Xiang Mei) [Orabug: 38254264] {CVE-2025-38477}
    - bpf: Reject %p% format string in bprintf-like helpers (Paul Chaignon) [Orabug: 38324225]     {CVE-2025-38528}
    - comedi: Fix initialization of data for instructions that write to subdevice (Ian Abbott) [Orabug:
    38254270] {CVE-2025-38478}
    - comedi: Fix use of uninitialized data in insn_rw_emulate_bits() (Ian Abbott) [Orabug: 38254276]     {CVE-2025-38480}
    - comedi: Fail COMEDI_INSNLIST ioctl if n_insns is too large (Ian Abbott) [Orabug: 38254283]     {CVE-2025-38481}
    - comedi: das6402: Fix bit shift out of bounds (Ian Abbott) [Orabug: 38254291] {CVE-2025-38482}
    - comedi: das16m1: Fix bit shift out of bounds (Ian Abbott) [Orabug: 38254299] {CVE-2025-38483}
    - comedi: aio_iiro_16: Fix bit shift out of bounds (Ian Abbott) [Orabug: 38324229] {CVE-2025-38529}
    - comedi: pcl812: Fix bit shift out of bounds (Ian Abbott) [Orabug: 38324236] {CVE-2025-38530}
    - iio: common: st_sensors: Fix use of uninitialize device structs (Maud Spierings) [Orabug: 38324242]     {CVE-2025-38531}
    - iio: backend: fix out-of-bound write (Markus Burri) [Orabug: 38254383] {CVE-2025-38484}
    - iio: adc: axp20x_adc: Add missing sentinel to AXP717 ADC channel maps (Chen-Yu Tsai) [Orabug: 38324314]     {CVE-2025-38547}
    - iio: accel: fxls8962af: Fix use after free in fxls8962af_fifo_flush (Sean Nyekjaer) [Orabug: 38254306]     {CVE-2025-38485}
    - smb: client: fix use-after-free in crypt_message when using async crypto (Wang Zhaolong) [Orabug:
    38254322] {CVE-2025-38488}
    - s390/bpf: Fix bpf_arch_text_poke() with new_addr == NULL again (Ilya Leoshkevich) [Orabug: 38254325]     {CVE-2025-38489}
    - net: libwx: properly reset Rx ring descriptor (Jiawen Wu) [Orabug: 38324251] {CVE-2025-38532}
    - net: libwx: fix the using of Rx buffer DMA (Jiawen Wu) [Orabug: 38324253] {CVE-2025-38533}
    - net: libwx: remove duplicate page_pool_put_full_page() (Jiawen Wu) [Orabug: 38254327] {CVE-2025-38490}
    - dmaengine: nbpfaxi: Fix memory corruption in probe() (Dan Carpenter) [Orabug: 38324262] {CVE-2025-38538}
    - mptcp: plug races between subflow fail and subflow creation (Paolo Abeni) [Orabug: 38324332]     {CVE-2025-38552}
    - mptcp: make fallback action and fallback decision atomic (Paolo Abeni) [Orabug: 38254329]     {CVE-2025-38491}
    - tracing/osnoise: Fix crash in timerlat_dump_stack() (Tomas Glozar) [Orabug: 38254335] {CVE-2025-38493}
    - tracing: Add down_write(trace_event_sem) when adding trace event (Steven Rostedt) [Orabug: 38324268]     {CVE-2025-38539}
    - HID: core: do not bypass hid_hw_raw_request (Benjamin Tissoires) [Orabug: 38254338] {CVE-2025-38494}
    - HID: core: ensure the allocated report buffer can contain the reserved report ID (Benjamin Tissoires)     [Orabug: 38254346] {CVE-2025-38495}
    - dm-bufio: fix sched in atomic context (Sheng Yong) [Orabug: 38254353] {CVE-2025-38496}
    - usb: gadget: configfs: Fix OOB read on empty string write (Xinyu Liu) [Orabug: 38254356]     {CVE-2025-38497}
    - phy: tegra: xusb: Fix unbalanced regulator disable in UTMI PHY mode (Wayne Chang) [Orabug: 38324256]     {CVE-2025-38535}
    - rseq: Fix segfault on registration when rseq_cs is non-zero (Michael Jeanson) [Orabug: 38095070]     {CVE-2025-38067}
    - crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() (Lukas Wunner) [Orabug: 37977089]     {CVE-2025-37984}
    - ksmbd: fix potential use-after-free in oplock/lease break ack (Namjae Jeon) [Orabug: 38254080]     {CVE-2025-38437}
    - kasan: remove kasan_find_vm_area() to prevent possible deadlock (Levi Yun) [Orabug: 38324146]     {CVE-2025-38510}
    - HID: nintendo: avoid bluetooth suspend/resume stalls (Daniel J. Ogorchock) [Orabug: 38324137]     {CVE-2025-38507}
    - HID: quirks: Add quirk for 2 Chicony Electronics HP 5MP Cameras (Chia-Lin Kao) [Orabug: 38324277]     {CVE-2025-38540}
    - btrfs: fix assertion when building free space tree (Filipe Manana) [Orabug: 38324119] {CVE-2025-38503}
    - ASoC: SOF: Intel: hda: Use devm_kstrdup() to avoid memleak. (Tamura Dai) [Orabug: 38254084]     {CVE-2025-38438}
    - bnxt_en: Set DMA unmap len correctly for XDP_REDIRECT (Somnath Kotur) [Orabug: 38254088]     {CVE-2025-38439}
    - net/mlx5e: Fix race between DIM disable and net_dim() (Carolina Jubran) [Orabug: 38254092]     {CVE-2025-38440}
    - net: appletalk: Fix device refcount leak in atrtr_create() (Kito Xu) [Orabug: 38324288] {CVE-2025-38542}
    - netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() (Eric Dumazet) [Orabug:
    38254094] {CVE-2025-38441}
    - drm/xe/pf: Clear all LMTT pages on alloc (Michal Wajdeczko) [Orabug: 38324148] {CVE-2025-38511}
    - nbd: fix uaf in nbd_genl_connect() error path (Zheng Qixing) [Orabug: 38254100] {CVE-2025-38443}
    - wifi: mt76: mt7925: Fix null-ptr-deref in mt7925_thermal_init() (Henry Martin) [Orabug: 38324286]     {CVE-2025-38541}
    - raid10: cleanup memleak at raid10_make_request (Nigel Croxon) [Orabug: 38254103] {CVE-2025-38444}
    - md/raid1: Fix stack memory use after return in raid1_reshape (Wang Jinchao) [Orabug: 38254107]     {CVE-2025-38445}
    - drm/tegra: nvdec: Fix dma_alloc_coherent error check (Mikko Perttunen) [Orabug: 38324294]     {CVE-2025-38543}
    - wifi: zd1211rw: Fix potential NULL pointer dereference in zd_mac_tx_to_dev() (Daniil Dulov) [Orabug:
    38324159] {CVE-2025-38513}
    - clk: imx: Fix an out-of-bounds access in dispmix_csr_clk_dev_data (Xiaolei Wang) [Orabug: 38254112]     {CVE-2025-38446}
    - lib/alloc_tag: do not acquire non-existent lock in alloc_tag_top_users() (Harry Yoo) [Orabug: 38324192]     {CVE-2025-38517}
    - usb: gadget: u_serial: Fix race condition in TTY wakeup (Kuen-Han Tsai) [Orabug: 38254116]     {CVE-2025-38448}
    - drm/sched: Increment job count before swapping tail spsc queue (Matthew Brost) [Orabug: 38324178]     {CVE-2025-38515}
    - drm/gem: Acquire references on GEM handles for framebuffers (Thomas Zimmermann) [Orabug: 38254122]     {CVE-2025-38449}
    - drm/amdkfd: Don't call mmput from MMU notifier callback (Philip Yang) [Orabug: 38324196]     {CVE-2025-38520}
    - drm/imagination: Fix kernel crash when hard resetting the GPU (Alessio Belle) [Orabug: 38324199]     {CVE-2025-38521}
    - wifi: mt76: mt7925: prevent NULL pointer dereference in mt7925_sta_set_decap_offload() (Deren Wu)     [Orabug: 38254130] {CVE-2025-38450}
    - wifi: mwifiex: discard erroneous disassoc frames on STA interface (Vitor Soares) [Orabug: 38324132]     {CVE-2025-38505}
    - wifi: prevent A-MSDU attacks in mesh networks (Mathy Vanhoef) [Orabug: 38324151] {CVE-2025-38512}
    - pinctrl: qcom: msm: mark certain pins as invalid for interrupts (Bartosz Golaszewski) [Orabug: 38324184]     {CVE-2025-38516}
    - net: ethernet: rtsn: Fix a null pointer dereference in rtsn_probe() (Haoxiang Li) [Orabug: 38254133]     {CVE-2025-38452}
    - ALSA: ad1816a: Fix potential NULL pointer deref in snd_card_ad1816a_pnp() (Thorsten Blum) [Orabug:
    38254137] {CVE-2025-38454}
    - KVM: Allow CPU to reschedule while setting per-page memory attributes (Liam Merwick) [Orabug: 38324134]     {CVE-2025-38506}
    - KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight (Sean Christopherson)     [Orabug: 38254139] {CVE-2025-38455}
    - ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() (Dan Carpenter) [Orabug:
    38254142] {CVE-2025-38456}
    - rxrpc: Fix oops due to non-existence of prealloc backlog struct (David Howells) [Orabug: 38324168]     {CVE-2025-38514}
    - rxrpc: Fix bug due to prealloc collision (David Howells) [Orabug: 38324296] {CVE-2025-38544}
    - net/sched: Abort __tc_modify_qdisc if parent class does not exist (Victor Nogueira) [Orabug: 38254145]     {CVE-2025-38457}
    - net: ethernet: ti: am65-cpsw-nuss: Fix skb size by accounting for skb_shared_info (Chintan Vankar)     [Orabug: 38324304] {CVE-2025-38545}
    - atm: clip: Fix NULL pointer dereference in vcc_sendmsg() (Yue Haibing) [Orabug: 38254151]     {CVE-2025-38458}
    - atm: clip: Fix infinite recursive call of clip_push(). (Kuniyuki Iwashima) [Orabug: 38254159]     {CVE-2025-38459}
    - atm: clip: Fix memory leak of struct clip_vcc. (Kuniyuki Iwashima) [Orabug: 38324307] {CVE-2025-38546}
    - atm: clip: Fix potential null-ptr-deref in to_atmarpd(). (Kuniyuki Iwashima) [Orabug: 38254165]     {CVE-2025-38460}
    - vsock: Fix transport_* TOCTOU (Michal Luczaj) [Orabug: 38254171] {CVE-2025-38461}
    - vsock: Fix transport_{g2h,h2g} TOCTOU (Michal Luczaj) [Orabug: 38254174] {CVE-2025-38462}
    - tcp: Correct signedness in skb remaining space calculation (Jiayuan Chen) [Orabug: 38254177]     {CVE-2025-38463}
    - tipc: Fix use-after-free in tipc_conn_close(). (Kuniyuki Iwashima) [Orabug: 38254179] {CVE-2025-38464}
    - netlink: Fix wraparounds of sk->sk_rmem_alloc. (Kuniyuki Iwashima) [Orabug: 38254186] {CVE-2025-38465}
    - perf: Revert to requiring CAP_SYS_ADMIN for uprobes (Peter Zijlstra) [Orabug: 38254195] {CVE-2025-38466}
    - drm/amdgpu: Replace Mutex with Spinlock for RLCG register access to avoid Priority Inversion in SRIOV     (Srinivasan Shanmugam) [Orabug: 37855415] {CVE-2025-38104}
    - drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling (Kaustabh Chakraborty) [Orabug:
    38254201] {CVE-2025-38467}
    - eventpoll: don't decrement ep refcount while still holding the ep mutex (Linus Torvalds) [Orabug:
    38209551] {CVE-2025-38349}
    - x86/bugs: Add a Transient Scheduler Attacks mitigation (Borislav Petkov) [Orabug: 38023239,38129827]     {CVE-2024-36350,CVE-2024-36357}
    - x86/bugs: Rename MDS machinery to something more generic (Borislav Petkov) [Orabug: 38023239,38129827]     {CVE-2024-36350,CVE-2024-36357}
    - mm: userfaultfd: fix race of userfaultfd_move and swap cache (Kairui Song) [Orabug: 38175034]     {CVE-2025-38242}
    - mm/vmalloc: fix data race in show_numa_info() (Jeongjun Park) [Orabug: 38253860] {CVE-2025-38383}
    - usb: typec: displayport: Fix potential deadlock (Andrei Kuchynski) [Orabug: 38254393] {CVE-2025-38404}
    - riscv: cpu_ops_sbi: Use static array for boot_data (Vivian Wang) [Orabug: 38253953] {CVE-2025-38407}
    - optee: ffa: fix sleep in atomic context (Jens Wiklander) [Orabug: 38253830] {CVE-2025-38374}
    - i2c/designware: Fix an initialization issue (Michael J. Ruhl) [Orabug: 38253849] {CVE-2025-38380}
    - usb: chipidea: udc: disconnect/reconnect from host when do suspend/resume (Xu Yang) [Orabug: 38253838]     {CVE-2025-38376}
    - IB/mlx5: Fix potential deadlock in MR deregistration (Or Har-Toov) [Orabug: 38253826] {CVE-2025-38373}
    - fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass (Shivank Garg) [Orabug: 38253909]     {CVE-2025-38396}
    - mtd: spinand: fix memory leak of ECC engine conf (Pablo Martin-Gomez) [Orabug: 38253862]     {CVE-2025-38384}
    - ACPICA: Refuse to evaluate a method if arguments are missing (Rafael J. Wysocki) [Orabug: 38253873]     {CVE-2025-38386}
    - wifi: ath6kl: remove WARN on bad firmware input (Johannes Berg) [Orabug: 38253944] {CVE-2025-38406}
    - scsi: target: Fix NULL pointer dereference in core_scsi3_decode_spec_i_port() (Maurizio Lombardi)     [Orabug: 38253913] {CVE-2025-38399}
    - genirq/irq_sim: Initialize work context pointers properly (Gyeyoung Baek) [Orabug: 38253955]     {CVE-2025-38408}
    - drm/msm: Fix another leak in the submit error path (Rob Clark) [Orabug: 38253959] {CVE-2025-38409}
    - drm/msm: Fix a fence leak in submit error path (Rob Clark) [Orabug: 38253966] {CVE-2025-38410}
    - drm/amd/display: Add more checks for DSC / HUBP ONO guarantees (Nicholas Kazlauskas) [Orabug: 38253787]     {CVE-2025-38360}
    - drm/xe/guc: Explicitly exit CT safe mode on unwind (Michal Wajdeczko) [Orabug: 38253775]     {CVE-2025-38356}
    - netfs: Fix oops in write-retry from mis-resetting the subreq iterator (David Howells) [Orabug: 38153033]     {CVE-2025-38139}
    - bpf: Do not include stack ptr register in precision backtracking bookkeeping (Yonghong Song) [Orabug:
    38180467] {CVE-2025-38279}
    - scsi: lpfc: Avoid potential ndlp use-after-free in dev_loss_tmo_callbk (Justin Tee) [Orabug: 38180503]     {CVE-2025-38289}
    - net/sched: Always pass notifications when child class becomes empty (Lion Ackermann) [Orabug: 38217337]     {CVE-2025-38350}
    - rose: fix dangling neighbour pointers in rose_rt_device_down() (Kohei Enju) [Orabug: 38253840]     {CVE-2025-38377}
    - idpf: convert control queue mutex to a spinlock (Ahmed Zaki) [Orabug: 38253897] {CVE-2025-38392}
    - idpf: return 0 size for RSS key if not supported (Michal Swiatkowski) [Orabug: 38253932]     {CVE-2025-38402}
    - drm/i915/gt: Fix timeline left held on VMA alloc error (Janusz Krzysztofik) [Orabug: 38253885]     {CVE-2025-38389}
    - net: usb: lan78xx: fix WARN in __netif_napi_del_locked on disconnect (Oleksij Rempel) [Orabug: 38253870]     {CVE-2025-38385}
    - smb: client: fix warning when reconnecting channel (Paulo Alcantara) [Orabug: 38254386] {CVE-2025-38379}
    - platform/x86: dell-wmi-sysman: Fix WMI data block retrieval in sysfs callbacks (Kurt Borja) [Orabug:
    38253975] {CVE-2025-38412}
    - nvmet: fix memory leak of bio integrity (Dmitry Bogdanov) [Orabug: 38253942] {CVE-2025-38405}
    - btrfs: fix invalid inode pointer dereferences during log replay (Filipe Manana) [Orabug: 38288149]     {CVE-2025-38243}
    - btrfs: fix iteration of extrefs during log replay (Filipe Manana) [Orabug: 38253858] {CVE-2025-38382}
    - NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN (Benjamin Coddington) [Orabug: 38253899]     {CVE-2025-38393}
    - nfs: Clean up /proc/net/rpc/nfs when nfs_fs_proc_net_init() fails. (Kuniyuki Iwashima) [Orabug:
    38253921] {CVE-2025-38400}
    - RDMA/mlx5: Initialize obj_event->obj_sub_list before xa_insert (Mark Zhang) [Orabug: 38253879]     {CVE-2025-38387}
    - RDMA/mlx5: Fix unsafe xarray access in implicit ODP handling (Or Har-Toov) [Orabug: 38253824]     {CVE-2025-38372}
    - firmware: arm_ffa: Replace mutex with rwlock to avoid sleep in atomic context (Sudeep Holla) [Orabug:
    38253883] {CVE-2025-38388}
    - firmware: arm_ffa: Fix memory leak by freeing notifier callback node (Sudeep Holla) [Orabug: 38253890]     {CVE-2025-38390}
    - drm/v3d: Disable interrupts before resetting the GPU (Maira Canal) [Orabug: 38253819] {CVE-2025-38371}
    - mtk-sd: Prevent memory corruption from DMA map failure (Masami Hiramatsu) [Orabug: 38253926]     {CVE-2025-38401}
    - usb: typec: altmodes/displayport: do not index invalid pin_assignments (Rd Babiera) [Orabug: 38253892]     {CVE-2025-38391}
    - Input: cs40l50-vibra - fix potential NULL dereference in cs40l50_upload_owt() (Yunshui) [Orabug:
    38253852] {CVE-2025-38381}
    - regulator: gpio: Fix the out-of-bounds access to drvdata::gpiods (Manivannan Sadhasivam) [Orabug:
    38253905] {CVE-2025-38395}
    - vsock/vmci: Clear the vmci transport packet properly when initializing it (Harshavardhana S A) [Orabug:
    38253935] {CVE-2025-38403}
    - virtio-net: ensure the received length does not exceed allocated size (Bui Quang Minh) [Orabug:
    38253832] {CVE-2025-38375}
    - virtio-net: xsk: rx: fix the frame's length check (Bui Quang Minh) [Orabug: 38253978] {CVE-2025-38413}

Tenable has extracted the preceding description block directly from the Oracle Linux 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.

  - smb: client: fix use-after-free in cifs_oplock_break A race condition can occur in cifs_oplock_break()     leading to a use-after-free of the cinode structure when unmounting: cifs_oplock_break()
    _cifsFileInfo_put(cfile) cifsFileInfo_put_final() cifs_sb_deactive() [last ref, start releasing sb]     kill_sb() kill_anon_super() generic_shutdown_super() evict_inodes() dispose_list() evict() destroy_inode()     call_rcu(&inode->i_rcu, i_callback) spin_lock(&cinode->open_file_lock) <- OK [later] i_callback()     cifs_free_inode() kmem_cache_free(cinode) spin_unlock(&cinode->open_file_lock) <- UAF     cifs_done_oplock_break(cinode) <- UAF The issue occurs when umount has already released its reference to     the superblock. When _cifsFileInfo_put() calls cifs_sb_deactive(), this releases the last reference,     triggering the immediate cleanup of all inodes under RCU. However, cifs_oplock_break() continues to access     the cinode after this point, resulting in use-after-free. Fix this by holding an extra reference to the     superblock during the entire oplock break operation. This ensures that the superblock and its inodes     remain valid until the oplock break completes. (CVE-2025-38527)

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 ALAS2023-2025-1144 advisory.

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

    xsk: Fix race condition in AF_XDP generic RX path (CVE-2025-37920)

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

    virtio: break and reset virtio devices on device_shutdown() (CVE-2025-38064)

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

    rseq: Fix segfault on registration when rseq_cs is non-zero (CVE-2025-38067)

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

    smb: client: fix potential deadlock when reconnecting channels (CVE-2025-38244)

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

    bridge: mcast: Fix use-after-free during router port configuration (CVE-2025-38248)

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

    fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass (CVE-2025-38396)

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

    md/raid1: Fix stack memory use after return in raid1_reshape (CVE-2025-38445)

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

    net/sched: Abort __tc_modify_qdisc if parent class does not exist (CVE-2025-38457)

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

    vsock: Fix transport_* TOCTOU (CVE-2025-38461)

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

    vsock: Fix transport_{g2h,h2g} TOCTOU (CVE-2025-38462)

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

    perf: Revert to requiring CAP_SYS_ADMIN for uprobes (CVE-2025-38466)

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

    tls: always refresh the queue when reading sock (CVE-2025-38471)

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

    netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)

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

    net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

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

    smb: client: fix use-after-free in crypt_message when using async crypto (CVE-2025-38488)

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

    HID: core: do not bypass hid_hw_raw_request (CVE-2025-38494)

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

    HID: core: ensure the allocated report buffer can contain the reserved report ID (CVE-2025-38495)

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

    clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (CVE-2025-38499)

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

    smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)

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

    ipv6: mcast: Delay put pmc->idev in mld_del_delrec() (CVE-2025-38550)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1145 advisory.

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

    btrfs: fix block group refcount race in btrfs_create_pending_block_groups() (CVE-2025-22115)

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

    ublk: fix race between io_uring_cmd_complete_in_task and ublk_cancel_cmd (CVE-2025-37906)

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

    crypto: ecdsa - Harden against integer overflows in DIV_ROUND_UP() (CVE-2025-37984)

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

    rseq: Fix segfault on registration when rseq_cs is non-zero (CVE-2025-38067)

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

    bridge: mcast: Fix use-after-free during router port configuration (CVE-2025-38248)

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

    fs/fhandle.c: fix a race in call of has_locked_children() (CVE-2025-38306)

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

    eventpoll: don't decrement ep refcount while still holding the ep mutex (CVE-2025-38349)

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

    net/mlx5e: Fix race between DIM disable and net_dim() (CVE-2025-38440)

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

    md/raid1: Fix stack memory use after return in raid1_reshape (CVE-2025-38445)

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

    drm/gem: Acquire references on GEM handles for framebuffers (CVE-2025-38449)

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

    net/sched: Abort __tc_modify_qdisc if parent class does not exist (CVE-2025-38457)

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

    vsock: Fix transport_* TOCTOU (CVE-2025-38461)

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

    vsock: Fix transport_{g2h,h2g} TOCTOU (CVE-2025-38462)

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

    tcp: Correct signedness in skb remaining space calculation (CVE-2025-38463)

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

    perf: Revert to requiring CAP_SYS_ADMIN for uprobes (CVE-2025-38466)

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

    tls: always refresh the queue when reading sock (CVE-2025-38471)

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

    netfilter: nf_conntrack: fix crash due to removal of uninitialised entry (CVE-2025-38472)

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

    smc: Fix various oops due to inet_sock type confusion. (CVE-2025-38475)

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

    net/sched: sch_qfq: Fix race condition on qfq_aggregate (CVE-2025-38477)

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

    smb: client: fix use-after-free in crypt_message when using async crypto (CVE-2025-38488)

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

    mptcp: make fallback action and fallback decision atomic (CVE-2025-38491)

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

    tracing/osnoise: Fix crash in timerlat_dump_stack() (CVE-2025-38493)

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

    HID: core: do not bypass hid_hw_raw_request (CVE-2025-38494)

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

    HID: core: ensure the allocated report buffer can contain the reserved report ID (CVE-2025-38495)

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

    dm-bufio: fix sched in atomic context (CVE-2025-38496)

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

    clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns (CVE-2025-38499)

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

    smb: client: fix use-after-free in cifs_oplock_break (CVE-2025-38527)

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

    ipv6: mcast: Delay put pmc->idev in mld_del_delrec() (CVE-2025-38550)

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
261833	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20551)	Nessus	Oracle Linux Local Security Checks	medium
259972	Linux Distros Unpatched Vulnerability : CVE-2025-38527	Nessus	Misc.	high
246924	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1144)	Nessus	Amazon Linux Local Security Checks	high
246922	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1145)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2025-38527

high

Tenable Plugins

medium

high

high

high