CVE-2025-71296

Summary

In the Linux kernel, the following vulnerability has been resolved:

drm/tests: shmem: Hold reservation lock around purge

Acquire and release the GEM object's reservation lock around calls to the object's purge operation. The tests use drm_gem_shmem_purge_locked(), which led to errors such as show below.

[ 58.709128] WARNING: CPU: 1 PID: 1354 at drivers/gpu/drm/drm_gem_shmem_helper.c:515 drm_gem_shmem_purge_locked+0x51c/0x740

Only export the new helper drm_gem_shmem_purge() for Kunit tests. This is not an interface for regular drivers.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux954907f7147dc43e0d1cd4d430c21d143d5fdf55 < cdf8bbbd9017adcfb91ad9a902198d4b507719a9affected
LinuxLinux954907f7147dc43e0d1cd4d430c21d143d5fdf55 < 8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69faffected
LinuxLinux954907f7147dc43e0d1cd4d430c21d143d5fdf55 < 3f41307d589c2f25d556d47b165df808124cd0c4affected
LinuxLinux6.16affected
LinuxLinux0 < 6.16unaffected
LinuxLinux6.18.16 <= 6.18.*unaffected
LinuxLinux6.19.6 <= 6.19.*unaffected
LinuxLinux7.0 <= *unaffected

Weaknesses

References