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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < b6ba1eacf276063ebeefbbae8056043c24f2efaf
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < df15adc692a802636dd3f258fc7cca8bf7a0ed9a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 8d7465be5163a923ee5d7459719ef5a021c1584a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 26ee518695c484f75e3606d631278e84bd24ae02
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0
Linux Linux affected
Version Status Constraints
6.6.136 unaffected ≤ 6.6.*
6.12.83 unaffected ≤ 6.12.*
6.18.24 unaffected ≤ 6.18.*
6.19.14 unaffected ≤ 6.19.*
7.0 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/0fd56fad9c56356e7fa7a7c52e7ecbf807a44eb0 cve-icon cve-icon
https://git.kernel.org/stable/c/26ee518695c484f75e3606d631278e84bd24ae02 cve-icon cve-icon
https://git.kernel.org/stable/c/8d7465be5163a923ee5d7459719ef5a021c1584a cve-icon cve-icon
https://git.kernel.org/stable/c/b6ba1eacf276063ebeefbbae8056043c24f2efaf cve-icon cve-icon
https://git.kernel.org/stable/c/df15adc692a802636dd3f258fc7cca8bf7a0ed9a cve-icon cve-icon
History

Wed, 06 May 2026 09:30:00 +0000

Type Values Removed Values Added
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.
Title wifi: wl1251: validate packet IDs before indexing tx_frames
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-06T07:40:39.234Z

Reserved: 2026-05-01T14:12:55.986Z

Link: CVE-2026-43113

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-06T10:16:25.050

Modified: 2026-05-06T10:16:25.050

Link: CVE-2026-43113

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.