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Description

In 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.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-06 | Updated 2026-05-08 | Assigner Linux




HIGH: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (git) before b6ba1eacf276063ebeefbbae8056043c24f2efaf
affected

2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (git) before df15adc692a802636dd3f258fc7cca8bf7a0ed9a
affected

2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (git) before 8d7465be5163a923ee5d7459719ef5a021c1584a
affected

2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (git) before 26ee518695c484f75e3606d631278e84bd24ae02
affected

2f01a1f58889fbfeb68b1bc1b52e4197f3333490 (git) before 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0
affected

Default status
affected

2.6.31
affected

Any version before 2.6.31
unaffected

6.6.136 (semver)
unaffected

6.12.83 (semver)
unaffected

6.18.24 (semver)
unaffected

6.19.14 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/b6ba1eacf276063ebeefbbae8056043c24f2efaf

git.kernel.org/...c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a

git.kernel.org/...c/8d7465be5163a923ee5d7459719ef5a021c1584a

git.kernel.org/...c/26ee518695c484f75e3606d631278e84bd24ae02

git.kernel.org/...c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0

cve.org (CVE-2026-43113)

nvd.nist.gov (CVE-2026-43113)

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