soc: xilinx: Fix race condition in event registration
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.12.114, 6.18.57, 7.1.5
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Fix race condition in event registration The zynqmp_power driver registers handlers for suspend and subsystem restart events using register_event(). However, the work structures (zynqmp_pm_init_suspend_work and zynqmp_pm_init_restart_work) used by these handlers were allocated and initialized after the registration call. This created a race window where, if the firmware triggered an event immediately after registration but before allocation, the callback (suspend_event_callback or subsystem_restart_event_callback) would dereference a NULL pointer in work_pending(), leading to a crash. Fix this by allocating and initializing the work structures before registering the events.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From fcf544ac64397776a18246eba5a8ca72a47c4405 · fixed in 07ea9081b8fefb99e2f427e0f0602a5e576cb120; From fcf544ac64397776a18246eba5a8ca72a47c4405 · fixed in e124f7b170337563d78a7a6aa152c897d229bc39; From fcf544ac64397776a18246eba5a8ca72a47c4405 · fixed in d349aa118ff5e4cab88424ce1b16e08edd70f8bb; From fcf544ac64397776a18246eba5a8ca72a47c4405 · fixed in fb445935338405110baca8f541a2df3b4cb8d712
- Linux Linux
6.11
- KernelLinux
From 6.11.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.57; From 6.19.0 · fixed in 7.1.5