drm/xe/configfs: Free ctx_restore_mid_bb in release

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Summary

CVECVE-2026-23421
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 14:16:28 UTC
Updated2026-04-24 15:21:16 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/xe/configfs: Free ctx_restore_mid_bb in release ctx_restore_mid_bb memory is allocated in wa_bb_store(), but xe_config_device_release() only frees ctx_restore_post_bb. Free ctx_restore_mid_bb[0].cs as well to avoid leaking the allocation when the configfs device is removed. (cherry picked from commit a235e7d0098337c3f2d1e8f3610c719a589e115f)

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000170000 probability, percentile 0.039750000 (date 2026-04-07)

Problem Types: NVD-CWE-noinfo

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b30d5de3d40c3fa642079bac0d91f17091c5f877 7f971dfd48983074adc7bbcea3ee95ce7aad47cb git Not specified
CNA Linux Linux affected b30d5de3d40c3fa642079bac0d91f17091c5f877 3557359ea3df32430ea7c30f7a708ca9a91d7e0e git Not specified
CNA Linux Linux affected b30d5de3d40c3fa642079bac0d91f17091c5f877 e377182f0266f46f02d01838e6bde67b9dac0d66 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/7f971dfd48983074adc7bbcea3ee95ce7aad47cb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/3557359ea3df32430ea7c30f7a708ca9a91d7e0e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e377182f0266f46f02d01838e6bde67b9dac0d66 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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