Red Hat Security Advisory: kernel security update

Fixed packages 142

Vulnerabilities 4

• High 7.8
  CVE-2025-38154

  bpf, sockmap: Avoid using sk_socket after free when sending

  In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Avoid using sk_socket after free when sending The sk->sk_socket is not locked or referenced in backlog thread, and during the call to skb_send_sock(), there is a race condition …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 3, 2025
• 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-2026-23001 Public exploit

  macvlan: fix possible UAF in macvlan_forward_source()

  In the Linux kernel, the following vulnerability has been resolved: macvlan: fix possible UAF in macvlan_forward_source() Add RCU protection on (struct macvlan_source_entry)->vlan. Whenever macvlan_hash_del_source() is called, we must clear entry->vlan pointe…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jan 25, 2026
• High 7.8
  CVE-2026-23209

  macvlan: fix error recovery in macvlan_common_newlink()

  In the Linux kernel, the following vulnerability has been resolved: macvlan: fix error recovery in macvlan_common_newlink() valis provided a nice repro to crash the kernel: ip link add p1 type veth peer p2 ip link set address 00:00:00:00:00:20 dev p1 ip link …

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Feb 14, 2026

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2376056
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2376376
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2432664
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2439900
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6310.json
• report
  https://access.redhat.com/security/cve/CVE-2025-38154
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38154
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38154
• article
  https://lore.kernel.org/linux-cve-announce/2025070337-CVE-2025-38154-8353@gregkh/T
• 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-2026-23001
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-23001
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-23001
• article
  https://lore.kernel.org/linux-cve-announce/2026012534-CVE-2026-23001-7ab0@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2026-23209
• advisory
  https://www.cve.org/CVERecord?id=CVE-2026-23209
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2026-23209
• article
  https://lore.kernel.org/linux-cve-announce/2026021439-CVE-2026-23209-9ad6@gregkh/T