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

Fixed packages 124

Vulnerabilities 2

• High 8.8
  CVE-2026-43112

  fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

  In the Linux kernel, the following vulnerability has been resolved: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath When cifs_sanitize_prepath is called with an empty string or a string containing only delimiters (e.g., "/"), the current logic …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  May 6, 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/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2456521
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2467015
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2477784
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_56573.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-2026-43112
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-43112
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-43112
• article
  https://lore.kernel.org/linux-cve-announce/2026050625-CVE-2026-43112-f37f@gregkh/T