crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-80522
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-26 15:17:05 UTC
Updated2026-08-27 06:17:31 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: crypto: tegra - fix rctx->cryptlen calculation in tegra_gcm_do_one_req() Perform rctx->cryptlen calculation in tegra_gcm_do_one_req() the same way it is done in tegra_ccm_crypt_init(). The current formulae may lead to a crash if a caller does not call tegra_gcm_setauthsize() and so ctx->authsize remains zero. Then a decrypt operation with incorrect rctx->cryptlen will lead to a write beyound rctx->dst_sg buffer. As a follow-up cleanup delete struct tegra_aead_ctx->authsize field since it appears to be completely unused. Also simplify tegra_ccm_setauthsize() and tegra_gcm_setauthsize() functions respectively.

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: 0.001280000 probability, percentile 0.027810000 (date 2026-08-27)

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 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 cd6991001bf0681ed0bcf21f9cc3d261d749b2bb git Not specified
CNA Linux Linux affected 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 99a18e1d979e0fad3aaf9c65ae6696897c1d9869 git Not specified
CNA Linux Linux affected 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 c6237834d9994de209cb90c7a2c461247bce8e90 git Not specified
CNA Linux Linux affected 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 360f2974fcea49c61f6d6f81554741a9eeee7168 git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.105 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.46 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.10 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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