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

Fixed packages 91

Vulnerabilities 3

• High 8.8
  CVE-2026-74580 Public exploit

  vhost: reset the vring metadata cache on vring reconfiguration

  In the Linux kernel, the following vulnerability has been resolved: vhost: reset the vring metadata cache on vring reconfiguration vq->meta_iotlb[] caches the vhost_iotlb_map that backs each vring metadata region, and iotlb_access_ok() returns early on a cach…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Aug 21, 2026
• High 7.8
  CVE-2026-43023

  Bluetooth: SCO: fix race conditions in sco_sock_connect()

  In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: fix race conditions in sco_sock_connect() sco_sock_connect() checks sk_state and sk_type without holding the socket lock. Two concurrent connect() syscalls on the same socket …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 1, 2026
• High 7.8
  CVE-2026-46209

  drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs()

  In the Linux kernel, the following vulnerability has been resolved: drm/gem: Fix inconsistent plane dimension calculation in drm_gem_fb_init_with_funcs() drm_gem_fb_init_with_funcs() computes sub-sampled plane dimensions using plain integer division: unsigned…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  May 28, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2464496
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2482636
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_61351.json
• report
  https://access.redhat.com/security/cve/CVE-2026-43023
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43023
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43023
• article
  https://lore.kernel.org/linux-cve-announce/2026050158-CVE-2026-43023-19eb@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-46209
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46209
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46209
• article
  https://lore.kernel.org/linux-cve-announce/2026052834-CVE-2026-46209-e4e9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-74580
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2521055
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-74580
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-74580
• article
  https://lore.kernel.org/linux-cve-announce/2026082158-CVE-2026-74580-5db9@gregkh/T