drm/i915/gem: Prevent overstepping exec array boundary

Summary

CVECVE-2026-99006
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-23 13:17:23 UTC
Updated2026-10-30 13:21:35 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Prevent overstepping exec array boundary It is possible for eb_relocate_parse_slow() to call kvfree() on entries outside the original exec array during following scenario inside eb_relocate_parse_slow(): 1) eb_copy_relocations() allocates as many as eb->buffer_count copies for exec entries; 2) eb_parse() appends up to two VMAs, right after incrementing eb->buffer_count; 3) cleanup under "out" label uses this incremented buffer_count to release relocation pointers from exec array via kvfree(), not from VMA array. To amend this problem, ensure that relocation cleanup uses the original exec object count, excluding the VMAs appended by the command parser. (cherry picked from commit 2a0158925fb943c7ba8f3216e2734952128defc9)

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001640000 probability, percentile 0.055790000 (date 2026-11-01)


VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 7bed07cb4daa610cd6d92d9e72a575275a99ed54 git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 cf42a445bd5036c30d57ae65b041b8b17dfef7b0 git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 859e52356f913806e5c1ee5d2022b7aeda0a784a git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 24c04e80c35ff36947366f6deafddb522eea080c git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 b1c357131fc467c579f65e9a9d1fdc1a6273ae1d git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 152fb5083b9333a1cb8629572f9e0f276a404ba6 git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 72d5cbb10d4916a3f8ef9da516c5c0634aca8439 git Not specified
CNA Linux Linux affected 8e4ba491b0ba6fef69270d3c4e48fc517096ef41 ebe162db655881a38de43301151ff7ac940602b5 git Not specified
CNA Linux Linux affected 5.10 Not specified
CNA Linux Linux unaffected 5.10 semver Not specified
CNA Linux Linux unaffected 5.10.273 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.224 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.191 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.160 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.113 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.57 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.11 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/859e52356f913806e5c1ee5d2022b7aeda0a784a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cf42a445bd5036c30d57ae65b041b8b17dfef7b0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b1c357131fc467c579f65e9a9d1fdc1a6273ae1d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ebe162db655881a38de43301151ff7ac940602b5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/72d5cbb10d4916a3f8ef9da516c5c0634aca8439 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/152fb5083b9333a1cb8629572f9e0f276a404ba6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7bed07cb4daa610cd6d92d9e72a575275a99ed54 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/24c04e80c35ff36947366f6deafddb522eea080c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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