Red Hat Security Advisory: kernel security update

Fixed packages 71

Vulnerabilities 3

• 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-2025-38206

  exfat: fix double free in delayed_free

  In the Linux kernel, the following vulnerability has been resolved: exfat: fix double free in delayed_free The double free could happen in the following path. exfat_create_upcase_table() exfat_create_upcase_table() : return error exfat_free_upcase_table() : f…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  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

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=2376377
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2432664
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_6986.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-2025-38206
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38206
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38206
• article
  https://lore.kernel.org/linux-cve-announce/2025070420-CVE-2025-38206-a077@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