Red Hat Security Advisory: kernel security update

Fixed packages 91

Vulnerabilities 6

• High 8.1
  CVE-2025-40168

  smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match().

  In the Linux kernel, the following vulnerability has been resolved: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match(). smc_clc_prfx_match() is called from smc_listen_work() and not under RCU nor RTNL. Using sk_dst_get(sk)->dev could trigger UA…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Nov 12, 2025
• High 7.8
  CVE-2025-38129

  page_pool: Fix use-after-free in page_pool_recycle_in_ring

  In the Linux kernel, the following vulnerability has been resolved: page_pool: Fix use-after-free in page_pool_recycle_in_ring syzbot reported a uaf in page_pool_recycle_in_ring: BUG: KASAN: slab-use-after-free in lock_release+0x151/0xa30 kernel/locking/lockd…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 3, 2025
• High 7.8
  CVE-2025-38349

  eventpoll: don't decrement ep refcount while still holding the ep mutex

  In the Linux kernel, the following vulnerability has been resolved: eventpoll: don't decrement ep refcount while still holding the ep mutex Jann Horn points out that epoll is decrementing the ep refcount and then doing a mutex_unlock(&ep->mtx); afterwards. Th…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Jul 18, 2025
• High 7.8
  CVE-2025-38703

  drm/xe: Make dma-fences compliant with the safe access rules

  In the Linux kernel, the following vulnerability has been resolved: drm/xe: Make dma-fences compliant with the safe access rules Xe can free some of the data pointed to by the dma-fences it exports. Most notably the timeline name can get freed if userspace cl…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Sep 4, 2025
• High 7.8
  CVE-2025-40064

  smc: Fix use-after-free in __pnet_find_base_ndev().

  In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in __pnet_find_base_ndev(). syzbot reported use-after-free of net_device in __pnet_find_base_ndev(), which was called during connect(). [0] smc_pnet_find_ism_resource(…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu Azure Linux
  Oct 28, 2025
• Unscored —
  CVE-2025-38289

  scsi: lpfc: Avoid potential ndlp use-after-free in dev_loss_tmo_callbk

  In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Avoid potential ndlp use-after-free in dev_loss_tmo_callbk Smatch detected a potential use-after-free of an ndlp oject in dev_loss_tmo_callbk during driver unload or fatal error h…

  Linux Linux linux-raspi2 linux-hwe Linux Debian Ubuntu
  Jul 10, 2025

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2376034
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2379196
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2381870
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2393157
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2406747
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2414482
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_4111.json
• report
  https://access.redhat.com/security/cve/CVE-2025-38129
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38129
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38129
• article
  https://lore.kernel.org/linux-cve-announce/2025070330-CVE-2025-38129-3c0e@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38289
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38289
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38289
• article
  https://lore.kernel.org/linux-cve-announce/2025071011-CVE-2025-38289-0d93@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38349
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38349
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38349
• article
  https://lore.kernel.org/linux-cve-announce/2025071819-CVE-2025-38349-ee39@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-38703
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-38703
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-38703
• article
  https://lore.kernel.org/linux-cve-announce/2025090453-CVE-2025-38703-2f5c@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-40064
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-40064
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-40064
• article
  https://lore.kernel.org/linux-cve-announce/2025102817-CVE-2025-40064-0c16@gregkh/T
• report
  https://access.redhat.com/security/cve/CVE-2025-40168
• advisory
  https://www.cve.org/CVERecord?id=CVE-2025-40168
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2025-40168
• article
  https://lore.kernel.org/linux-cve-announce/2025111256-CVE-2025-40168-bdd5@gregkh/T