{"id":"CVE-2026-80655","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: xilinx: Fix race condition in event registration\n\nThe zynqmp_power driver registers handlers for suspend and subsystem\nrestart events using register_event()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: xilinx: Fix race condition in event registration\n\nThe zynqmp_power driver registers handlers for suspend and subsystem\nrestart events using register_event(). Howev…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 < e124f7b170337563d78a7a6aa152c897d229bc39","Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 < d349aa118ff5e4cab88424ce1b16e08edd70f8bb","Linux >= fcf544ac64397776a18246eba5a8ca72a47c4405 < fb445935338405110baca8f541a2df3b4cb8d712","Linux 6.11"],"published":"2026-08-28","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:51.440","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80655","references":[{"url":"https://git.kernel.org/stable/c/d349aa118ff5e4cab88424ce1b16e08edd70f8bb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e124f7b170337563d78a7a6aa152c897d229bc39","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fb445935338405110baca8f541a2df3b4cb8d712","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80655.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80655"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2525385"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80655"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80655"},{"url":"https://lore.kernel.org/linux-cve-announce/2026082844-CVE-2026-80655-c437@gregkh/T"},{"url":"https://git.kernel.org/stable/c/07ea9081b8fefb99e2f427e0f0602a5e576cb120"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00209,"epssPercentile":0.10927,"ingestedAt":"2026-10-15T11:00:41.666Z","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-476"],"slug":"CVE-2026-80655","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nsoc: xilinx: Fix race condition in event registration\n\nThe zynqmp_power driver registers handlers for suspend and subsystem\nrestart events using register_event(). However, the work structures\n(zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by\nthese handlers were allocated and initialized after the registration\ncall.\n\nThis created a race window where, if the firmware triggered an event\nimmediately after registration but before allocation, the callback\n(suspend_event_callback or subsystem_restart_event_callback) would\ndereference a NULL pointer in work_pending(), leading to a crash.\n\nFix this by allocating and initializing the work structures before\nregistering the events.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80655.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":224358,"id":"CVE-2026-80655","ts":1792325110871,"field":"cvss","old":null,"new":"5.5"},{"seq":224357,"id":"CVE-2026-80655","ts":1792325110871,"field":"severity","old":"none","new":"medium"}]}