Red Hat Security Advisory: kernel security update

Fixed packages 46

Vulnerabilities 2

• High 7.8
  CVE-2026-43074 Public exploit

  eventpoll: defer struct eventpoll free to RCU grace period

  In the Linux kernel, the following vulnerability has been resolved: eventpoll: defer struct eventpoll free to RCU grace period In certain situations, ep_free() in eventpoll.c will kfree the epi->ep eventpoll struct while it still being used by another concurr…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 2026
• High 7.8
  CVE-2026-46242 Public exploit

  eventpoll: fix ep_remove struct eventpoll / struct file UAF

  In the Linux kernel, the following vulnerability has been resolved: eventpoll: fix ep_remove struct eventpoll / struct file UAF ep_remove() (via ep_remove_file()) cleared file->f_ep under file->f_lock but then kept using @file inside the critical section (is_…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 30, 2026

References

• article
  https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_for_nvidia/26.01/html/26.01_release_notes/index
• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2467019
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2483519
• article
  https://issues.redhat.com/browse/VOYAGER-1233
• article
  https://issues.redhat.com/browse/VOYAGER-1238
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36186.json
• report
  https://access.redhat.com/security/cve/CVE-2026-43074
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43074
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43074
• article
  https://lore.kernel.org/linux-cve-announce/2026050601-CVE-2026-43074-ac01@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46242
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46242
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46242
• article
  https://lore.kernel.org/linux-cve-announce/2026053014-CVE-2026-46242-8394@gregkh/T