Red Hat Security Advisory: kernel security update

Fixed packages 49

Vulnerabilities 8

• Critical 9.8
  CVE-2025-38724

  nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm()

  In the Linux kernel, the following vulnerability has been resolved: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() Lei Lu recently reported that nfsd4_setclientid_confirm() did not check the return value from get_client_locked(). a SE…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Sep 4, 2025
• Critical 9.8
  CVE-2025-68285

  libceph: fix potential use-after-free in have_mon_and_osd_map()

  In the Linux kernel, the following vulnerability has been resolved: libceph: fix potential use-after-free in have_mon_and_osd_map() The wait loop in __ceph_open_session() can race with the client receiving a new monmap or osdmap shortly after the initial map …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Dec 16, 2025
• High 8.8
  CVE-2023-53675

  scsi: ses: Fix possible desc_ptr out-of-bounds accesses

  In the Linux kernel, the following vulnerability has been resolved: scsi: ses: Fix possible desc_ptr out-of-bounds accesses Sanitize possible desc_ptr out-of-bounds accesses in ses_enclosure_data_process().

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 7, 2025
• High 8.2
  CVE-2023-53705

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

  In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bounds access in ipv6_find_tlv() optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access. Found by InfoTeCS on be…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 22, 2025
• High 7.8
  CVE-2022-50543

  RDMA/rxe: Fix mr->map double free

  In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Fix mr->map double free rxe_mr_cleanup() which tries to free mr->map again will be called when rxe_mr_init_user() fails: CPU: 0 PID: 4917 Comm: rdma_flush_serv Kdump: loaded Not tai…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 7, 2025
• High 7.8
  CVE-2025-39825

  smb: client: fix race with concurrent opens in rename(2)

  In the Linux kernel, the following vulnerability has been resolved: smb: client: fix race with concurrent opens in rename(2) Besides sending the rename request to the server, the rename process also involves closing any deferred close, waiting for outstanding…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Sep 16, 2025
• High 7.5
  CVE-2023-53680

  NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL

  In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are car…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 7, 2025
• Unscored —
  CVE-2023-53513

  nbd: fix incomplete validation of ioctl arg

  In the Linux kernel, the following vulnerability has been resolved: nbd: fix incomplete validation of ioctl arg We tested and found an alarm caused by nbd_ioctl arg without verification. The UBSAN warning calltrace like below: UBSAN: Undefined behaviour in fs…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 1, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2393172
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2395792
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2400795
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2402213
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2402222
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2402293
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2405713
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2422801
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0532.json
• report
  https://access.redhat.com/security/cve/CVE-2022-50543
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-50543
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-50543
• article
  https://lore.kernel.org/linux-cve-announce/2025100756-CVE-2022-50543-597d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2023-53513
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-53513
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-53513
• article
  https://lore.kernel.org/linux-cve-announce/2025100130-CVE-2023-53513-4667@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2023-53675
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-53675
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-53675
• article
  https://lore.kernel.org/linux-cve-announce/2025100707-CVE-2023-53675-e7ac@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2023-53680
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-53680
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-53680
• article
  https://lore.kernel.org/linux-cve-announce/2025100708-CVE-2023-53680-501d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2023-53705
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-53705
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-53705
• article
  https://lore.kernel.org/linux-cve-announce/2025102212-CVE-2023-53705-38d9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38724
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38724
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38724
• article
  https://lore.kernel.org/linux-cve-announce/2025090401-CVE-2025-38724-5309@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-39825
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-39825
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-39825
• article
  https://lore.kernel.org/linux-cve-announce/2025091616-CVE-2025-39825-8a7a@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-68285