KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-50281
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-11-19 02:16:30 UTC
Updated2026-08-04 11:21:40 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: KEYS: trusted: dcp: fix NULL dereference in AEAD crypto operation When sealing or unsealing a key blob we currently do not wait for the AEAD cipher operation to finish and simply return after submitting the request. If there is some load on the system we can exit before the cipher operation is done and the buffer we read from/write to is already removed from the stack. This will e.g. result in NULL pointer dereference errors in the DCP driver during blob creation. Fix this by waiting for the AEAD cipher operation to finish before resuming the seal and unseal calls.

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: 0.001840000 probability, percentile 0.082160000 (date 2026-08-06)

Problem Types: CWE-476 | CWE-476 CWE-476 NULL Pointer Dereference

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1ADPDECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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
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
Operating System Linux Linux Kernel 6.10.7 All All All
Operating System Linux Linux Kernel 6.12 rc1 All All
Operating System Linux Linux Kernel 6.12 rc2 All All
Operating System Linux Linux Kernel 6.12 rc3 All All
Operating System Linux Linux Kernel 6.12 rc4 All All
Operating System Linux Linux Kernel 6.12 rc5 All All
Operating System Linux Linux Kernel 6.12 rc6 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb c75e0272289eae18c5379518a9c56ef31d65cc7d git Not specified
CNA Linux Linux affected 0e28bf61a5f9ab30be3f3b4eafb8d097e39446bb 04de7589e0a95167d803ecadd115235ba2c14997 git Not specified
CNA Linux Linux affected 9e3b266afcfe4294e84496f50f006f029d3100db git Not specified
CNA Linux Linux affected 6.10.7 6.11 semver Not specified
CNA Linux Linux affected 6.11 Not specified
CNA Linux Linux unaffected 6.11 semver Not specified
CNA Linux Linux unaffected 6.11.8 6.11.* semver Not specified
CNA Linux Linux unaffected 6.12 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/04de7589e0a95167d803ecadd115235ba2c14997 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c75e0272289eae18c5379518a9c56ef31d65cc7d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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