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

Fixed packages 46

Vulnerabilities 1

• High 7.8
  CVE-2026-46331 Public exploit

  net/sched: fix pedit partial COW leading to page cache corruption

  In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hi…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jun 16, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#important
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2479492
• article
  https://issues.redhat.com/browse/VOYAGER-1100
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_33666.json
• report
  https://access.redhat.com/security/cve/CVE-2026-46331
• article
  https://access.redhat.com/security/vulnerabilities/RHSB-2026-008
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-46331
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-46331
• article
  https://lore.kernel.org/netdev/20260516162825.1480113-1-rollkingzzc@gmail.com/