In the Linux kernel, the following vulnerability has been resolved:
watchdog: unregister PM notifier on watchdog unregister
watchdog_register_device() registers wdd->pm_nb when WDOG_NO_PING_ON_SUSPEND is set, but watchdog_unregister_device() does not remove it. This leaves an embedded notifier block on the PM notifier chain after the watchdog device has been unregistered.
A later suspend/resume notification can then call watchdog_pm_notifier() with a stale watchdog_device pointer, or at minimum after wdd->wd_data has been cleared by watchdog_dev_unregister().
Unregister the PM notifier before tearing down the watchdog device.
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade bpftoolUpgrade python3-perf-debuginfoUpgrade kernel-debuginfo-common-aarch64Upgrade kernel-debuginfo-common-x86_64Upgrade kernel-modules-extra-commonUpgrade python3-perfUpgrade kernel-toolsUpgrade kernel-tools-develUpgrade kernelUpgrade kernel-livepatch-6.1.180-225.360Upgrade perfUpgrade kernel-headersUpgrade perf-debuginfoUpgrade kernel-tools-debuginfoUpgrade bpftool-debuginfoUpgrade kernel-debuginfoUpgrade kernel-develUpgrade kernel-modules-extra | Sep 1, 2026 | Aug 15, 2026 |
| Debian | — | Upgrade linux | Aug 16, 2026 | Aug 16, 2026 |
| Redhat_linux | — | No solution exists | Aug 24, 2026 | Aug 15, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Aug 21, 2026 | Aug 15, 2026 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub