wifi: wl1251: validate packet IDs before indexing tx_frames

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Summary

CVECVE-2026-43113
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 10:16:25 UTC
Updated2026-05-08 17:58:54 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: wl1251: validate packet IDs before indexing tx_frames wl1251_tx_packet_cb() uses the firmware completion ID directly to index the fixed 16-entry wl->tx_frames[] array. The ID is a raw u8 from the completion block, and the callback does not currently verify that it fits the array before dereferencing it. Reject completion IDs that fall outside wl->tx_frames[] and keep the existing NULL check in the same guard. This keeps the fix local to the trust boundary and avoids touching the rest of the completion flow.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.000210000 probability, percentile 0.061610000 (date 2026-05-12)

Problem Types: CWE-476

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

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

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 b6ba1eacf276063ebeefbbae8056043c24f2efaf git Not specified
CNA Linux Linux affected 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 df15adc692a802636dd3f258fc7cca8bf7a0ed9a git Not specified
CNA Linux Linux affected 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 8d7465be5163a923ee5d7459719ef5a021c1584a git Not specified
CNA Linux Linux affected 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 26ee518695c484f75e3606d631278e84bd24ae02 git Not specified
CNA Linux Linux affected 2f01a1f58889fbfeb68b1bc1b52e4197f3333490 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 git Not specified
CNA Linux Linux affected 2.6.31 Not specified
CNA Linux Linux unaffected 2.6.31 semver Not specified
CNA Linux Linux unaffected 6.6.136 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.83 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.24 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.14 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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