CVE-2026-68199wifi: ath6kl: fix OOB access from firmware ADDBA window size
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB access from firmware ADDBA window size aggr_recv_addba_req_evt() logs a debug message when the firmware-supplied win_sz is outside [AGGR_WIN_SZ_MIN, AGGR_WIN_SZ_MAX] but does not return. The out-of-range win_sz is then used in TID_WINDOW_SZ() to compute a kzalloc size and stored in rxtid->hold_q_sz, leading to zero-size or overflowed allocations and subsequent out-of-bounds access. Clean up any previously active aggregation session for the TID first, then return early when win_sz is out of the valid range, instead of proceeding with a broken allocation size.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from bdcd81707973cf8aa9305337166f8ee842a050d4 before c8e3ca7954d8233fbc54bd370c1827670f43c538; from bdcd81707973cf8aa9305337166f8ee842a050d4 before f480d9910fcfe326db3a6281df80e83af347193e; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 67bc9af4f41f2bdba20404fbd753b2a1bd6dd352; from bdcd81707973cf8aa9305337166f8ee842a050d4 before d4558c140782180e2c80a7588a4af9f8675adfc4; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 5a65fd4722416061698b0a3277222381efbc4882; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c; from bdcd81707973cf8aa9305337166f8ee842a050d4 before cec0a487cf38ac1f9bca240ffe8a94c5014b72f2; from bdcd81707973cf8aa9305337166f8ee842a050d4 before 44126b6994eeb28f2103b638e698f40a1244f327 | CNA record |
References
- https://git.kernel.org/stable/c/c8e3ca7954d8233fbc54bd370c1827670f43c538
- https://git.kernel.org/stable/c/f480d9910fcfe326db3a6281df80e83af347193e
- https://git.kernel.org/stable/c/67bc9af4f41f2bdba20404fbd753b2a1bd6dd352
- https://git.kernel.org/stable/c/d4558c140782180e2c80a7588a4af9f8675adfc4
- https://git.kernel.org/stable/c/5a65fd4722416061698b0a3277222381efbc4882
- https://git.kernel.org/stable/c/58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9c
- https://git.kernel.org/stable/c/cec0a487cf38ac1f9bca240ffe8a94c5014b72f2
- https://git.kernel.org/stable/c/44126b6994eeb28f2103b638e698f40a1244f327
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.