Red Hat Security Advisory: kernel security, bug fix, and enhancement update

Fixed packages 158

Vulnerabilities 7

• Critical 9.8
  CVE-2026-63912

  xfrm: esp: restore combined single-frag length gate

  In the Linux kernel, the following vulnerability has been resolved: xfrm: esp: restore combined single-frag length gate The ESP out-of-place fast path appends the trailer in esp_output_head() before esp_output_tail() allocates the destination page frag. The h…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 19, 2026
• High 8.8
  CVE-2026-53071

  Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: l2cap: Add missing chan lock in l2cap_ecred_reconf_rsp l2cap_ecred_reconf_rsp() calls l2cap_chan_del() without holding l2cap_chan_lock(). Every other l2cap_chan_del() caller in the…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 24, 2026
• High 7.8
  CVE-2026-46215 Public exploit

  drm: Set old handle to NULL before prime swap in change_handle

  In the Linux kernel, the following vulnerability has been resolved: drm: Set old handle to NULL before prime swap in change_handle There was a potential race condition in change_handle. The ioctl briefly had a single object with two idr entries; a concurrent …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 28, 2026
• High 7.8
  CVE-2026-72123

  can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF

  In the Linux kernel, the following vulnerability has been resolved: can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF Commit f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") replaced synchronize_rcu() in bcm_dele…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Aug 15, 2026
• High 7.1
  CVE-2026-46150

  fanotify: fix false positive on permission events

  In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026
• Unscored —
  CVE-2025-71113

  crypto: af_alg - zero initialize memory allocated via sock_kmalloc

  In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - zero initialize memory allocated via sock_kmalloc Several crypto user API contexts and requests allocated with sock_kmalloc() were left uninitialized, relying on callers to s…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jan 14, 2026
• Unscored —
  CVE-2026-23110

  scsi: core: Wake up the error handler when final completions race against each other

  In the Linux kernel, the following vulnerability has been resolved: scsi: core: Wake up the error handler when final completions race against each other The fragile ordering between marking commands completed or failed so that the error handler only wakes whe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Feb 4, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2429611
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2436755
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2481972
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482612
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482615
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2492458
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2502866
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_43307.json
• report
  https://access.redhat.com/security/cve/CVE-2025-71113
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-71113
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-71113
• article
  https://lore.kernel.org/linux-cve-announce/2026011413-CVE-2025-71113-a5ec@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-23110
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-23110
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-23110
• article
  https://lore.kernel.org/linux-cve-announce/2026020431-CVE-2026-23110-56b1@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46150
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46150
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46150
• article
  https://lore.kernel.org/linux-cve-announce/2026052822-CVE-2026-46150-c96d@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46215
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46215
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46215
• article
  https://lore.kernel.org/linux-cve-announce/2026052836-CVE-2026-46215-4ede@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-53071
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-53071
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-53071
• article
  https://lore.kernel.org/linux-cve-announce/2026062404-CVE-2026-53071-bdae@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-63912
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2502415
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-63912
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-63912
• article
  https://kernelcve.org/list/?q=CVE-2026-63912
• article
  https://lore.kernel.org/linux-cve-announce/2026071946-CVE-2026-63912-a43c@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-72123
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-72123
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-72123
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68973f9db761