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

Fixed packages 49

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-2026-53016

  crypto: ccp - copy IV using skcipher ivsize

  In the Linux kernel, the following vulnerability has been resolved: crypto: ccp - copy IV using skcipher ivsize AF_ALG rfc3686-ctr-aes-ccp requests pass an 8-byte IV to the driver. ccp_aes_complete() restores AES_BLOCK_SIZE bytes into the caller's IV buffer w…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jun 24, 2026
• Unscored —
  CVE-2026-31411

  net: atm: fix crash due to unvalidated vcc pointer in sigd_send()

  In the Linux kernel, the following vulnerability has been resolved: net: atm: fix crash due to unvalidated vcc pointer in sigd_send() Reproducer available at [1]. The ATM send path (sendmsg -> vcc_sendmsg -> sigd_send) reads the vcc pointer from msg->vcc and …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Apr 8, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2456521
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2492269
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_61256.json
• report
  https://access.redhat.com/security/cve/CVE-2026-31411
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-31411
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-31411
• article
  https://lore.kernel.org/linux-cve-announce/2026040820-CVE-2026-31411-7ef9@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-53016
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-53016
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-53016
• article
  https://lore.kernel.org/linux-cve-announce/2026062451-CVE-2026-53016-90ac@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