Red Hat Security Advisory: kernel security update

Fixed packages 160

Vulnerabilities 2

• High 7.8
  CVE-2025-38180

  net: atm: fix /proc/net/atm/lec handling

  In the Linux kernel, the following vulnerability has been resolved: net: atm: fix /proc/net/atm/lec handling /proc/net/atm/lec must ensure safety against dev_lec[] changes. It appears it had dev_put() calls without prior dev_hold(), leading to imbalance and U…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 4, 2025
• High 7.8
  CVE-2026-23231 Public exploit

  netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

  In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hook…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Mar 4, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2376376
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2444376
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6940.json
• report
  https://access.redhat.com/security/cve/CVE-2025-38180
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38180
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38180
• article
  https://lore.kernel.org/linux-cve-announce/2025070410-CVE-2025-38180-c6d0@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-23231
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-23231
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-23231
• article
  https://lore.kernel.org/linux-cve-announce/2026030436-CVE-2026-23231-1a96@gregkh/T