Red Hat Security Advisory: kernel security update

Fixed packages 81

Vulnerabilities 5

• 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-2022-49290

  mac80211: fix potential double free on mesh join

  In the Linux kernel, the following vulnerability has been resolved: mac80211: fix potential double free on mesh join While commit 6a01afcf8468 ("mac80211: mesh: Free ie data when leaving mesh") fixed a memory leak on mesh leave / teardown it introduced a pote…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Feb 26, 2025
• High 7.8
  CVE-2025-39993

  media: rc: fix races with imon_disconnect()

  In the Linux kernel, the following vulnerability has been resolved: media: rc: fix races with imon_disconnect() Syzbot reports a KASAN issue as below: BUG: KASAN: use-after-free in __create_pipe include/linux/usb.h:1945 [inline] BUG: KASAN: use-after-free in …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Oct 15, 2025
• High 7.8
  CVE-2025-40248

  vsock: Ignore signal/timeout on connect() if already established

  In the Linux kernel, the following vulnerability has been resolved: vsock: Ignore signal/timeout on connect() if already established During connect(), acting on a signal/timeout by disconnecting an already established socket leads to several issues: 1. connec…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Dec 4, 2025
• High 7.8
  CVE-2025-40277

  drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE

  In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate command header size against SVGA_CMD_MAX_DATASIZE This data originates from userspace and is used in buffer offset calculations which could potentially overflow causing a…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Dec 6, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2347727
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2404121
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2405713
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2418872
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2419954
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1442.json
• report
  https://access.redhat.com/security/cve/CVE-2022-49290
• advisory
  https://www.cve.org/CVERecord?id=CVE-2022-49290
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2022-49290
• article
  https://lore.kernel.org/linux-cve-announce/2025022633-CVE-2022-49290-42e8@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-2025-39993
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-39993
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-39993
• article
  https://lore.kernel.org/linux-cve-announce/2025101527-CVE-2025-39993-caef@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-40248
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-40248
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-40248
• article
  https://lore.kernel.org/linux-cve-announce/2025120430-CVE-2025-40248-506e@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-40277
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-40277
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-40277
• article
  https://lore.kernel.org/linux-cve-announce/2025120717-CVE-2025-40277-d511@gregkh/T