Red Hat Security Advisory: kernel security update

Fixed packages 49

Vulnerabilities 2

• Critical 10.0
  CVE-2026-74705

  udp: fix potential use-after-free in tunnel segmentation

  In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Aug 22, 2026
• Critical 9.1
  CVE-2026-64320

  nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page

  In the Linux kernel, the following vulnerability has been resolved: nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page nvmet_execute_disc_get_log_page() validates only the dword alignment of the host-supplied Log Page Offset (lpo). The 64-b…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 25, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2507061
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2521498
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_79782.json
• report
  https://access.redhat.com/security/cve/CVE-2026-64320
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-64320
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-64320
• article
  https://lore.kernel.org/linux-cve-announce/2026072511-CVE-2026-64320-4b43@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-74705
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-74705
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-74705
• article
  https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-74705.mbox