drm/amdgpu: Fix use-after-free race in VM acquire

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Summary

CVECVE-2026-43370
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-08 15:16:48 UTC
Updated2026-05-11 08:16:11 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix use-after-free race in VM acquire Replace non-atomic vm->process_info assignment with cmpxchg() to prevent race when parent/child processes sharing a drm_file both try to acquire the same VM after fork(). (cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)

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: 0.000240000 probability, percentile 0.070400000 (date 2026-05-10)

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 ede0dd86f45adf2b7083bb161f6bc81da5fe2bad ae87aea330c24f462fc7058ed543ba8bc6798447 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad 46d309996bd9251792d7dafdbaf615cf202b4447 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad e61e355cbe49e585097eee28c15b862bfb1c0668 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad c658c1c85ec235b7ecfbf8dbfee385b1332088f4 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad 904025fa8bba1d028adade33346372b4ac1a9249 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad 7885eb335d8f9e9942925d57e300a85e3f82ded4 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad 94b7782d0c8024f5b88454241c8d4777076c3786 git Not specified
CNA Linux Linux affected ede0dd86f45adf2b7083bb161f6bc81da5fe2bad 2c1030f2e84885cc58bffef6af67d5b9d2e7098f git Not specified
CNA Linux Linux affected 4.17 Not specified
CNA Linux Linux unaffected 4.17 semver Not specified
CNA Linux Linux unaffected 5.10.253 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.203 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.167 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.78 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.19 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.9 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/ae87aea330c24f462fc7058ed543ba8bc6798447 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/904025fa8bba1d028adade33346372b4ac1a9249 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2c1030f2e84885cc58bffef6af67d5b9d2e7098f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/46d309996bd9251792d7dafdbaf615cf202b4447 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e61e355cbe49e585097eee28c15b862bfb1c0668 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/94b7782d0c8024f5b88454241c8d4777076c3786 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c658c1c85ec235b7ecfbf8dbfee385b1332088f4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7885eb335d8f9e9942925d57e300a85e3f82ded4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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