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Description

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.

PUBLISHED Reserved 2026-05-06 | Published 2026-05-08 | Updated 2026-05-08 | Assigner Linux

Product status

Default status
unaffected

954907f7147dc43e0d1cd4d430c21d143d5fdf55 (git) before cdf8bbbd9017adcfb91ad9a902198d4b507719a9
affected

954907f7147dc43e0d1cd4d430c21d143d5fdf55 (git) before 8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f
affected

954907f7147dc43e0d1cd4d430c21d143d5fdf55 (git) before 3f41307d589c2f25d556d47b165df808124cd0c4
affected

Default status
affected

6.16
affected

Any version before 6.16
unaffected

6.18.16 (semver)
unaffected

6.19.6 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/cdf8bbbd9017adcfb91ad9a902198d4b507719a9

git.kernel.org/...c/8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f

git.kernel.org/...c/3f41307d589c2f25d556d47b165df808124cd0c4

cve.org (CVE-2025-71296)

nvd.nist.gov (CVE-2025-71296)

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