rxgk: Fix potential integer overflow in length check

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Summary

CVECVE-2026-46039
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-27 14:17:23 UTC
Updated2026-05-30 11:17:19 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: rxgk: Fix potential integer overflow in length check Fix potential integer overflow in rxgk_extract_token() when checking the length of the ticket. Rather than rounding up the value to be tested (which might overflow), round down the size of the available data.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000530000 probability, percentile 0.168930000 (date 2026-06-03)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2429a197648178cd4dc930a9d87c13c547460564 43222ac484f93b3ec2d240a7575e1cedd31f5fa4 git Not specified
CNA Linux Linux affected 2429a197648178cd4dc930a9d87c13c547460564 183d37f12d1c8ed24a5bfc7addad05510da22a94 git Not specified
CNA Linux Linux affected 2429a197648178cd4dc930a9d87c13c547460564 6929350080f4da292d111a3b33e53138fee51cec git Not specified
CNA Linux Linux affected 71571e187106631a8127f2dde780f35caa358d33 git Not specified
CNA Linux Linux affected 6.16.9 6.17 semver Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 6.18.27 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.4 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/43222ac484f93b3ec2d240a7575e1cedd31f5fa4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/183d37f12d1c8ed24a5bfc7addad05510da22a94 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/6929350080f4da292d111a3b33e53138fee51cec 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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