CVE-2026-68355
wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()
In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get() When the first entry in msdu_details has a zero buffer address, the code accesses msdu_details[i - 1] with i == 0, causing a buffer underflow. Fix similarly to ath12k_wifi7_hal_rx_msdu_list_get() by adding a separate check for i == 0 before the main condition to prevent the out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes and workarounds
No remediation reported in collected sources.
Missing remediation information is not evidence that no patch exists.
Affected products and versions
| Product | Versions | Authority |
|---|---|---|
| Linux Linux |
≥ d5c65159f2895379e11ca13f62feabe93278985d; < 085a5fde5bac29c01059e69399b417e91c0a6c18 (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 31ea4b175bc3ab430be15834d9ee8a1ce65bee15 (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591 (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 904367381a922aa2dc3e8bd2488e6c9180516c7a (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < a154ca3c441a67d36b3a9ea63a4f11b06abe6223 (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5 (affected, git) ≥ d5c65159f2895379e11ca13f62feabe93278985d; < 7f11e70629650ff6ea140984e5ce188b775b2683 (affected, git) Other versions: unaffected |
CNA: Linux |
| Linux Linux |
5.6 (affected) ≥ 0; < 5.6 (unaffected, semver) ≥ 5.10.265; ≤ 5.10.* (unaffected, semver) ≥ 5.15.216; ≤ 5.15.* (unaffected, semver) ≥ 6.1.183; ≤ 6.1.* (unaffected, semver) ≥ 6.6.148; ≤ 6.6.* (unaffected, semver) ≥ 6.12.101; ≤ 6.12.* (unaffected, semver) ≥ 6.18.42; ≤ 6.18.* (unaffected, semver) ≥ 7.1.6; ≤ 7.1.* (unaffected, semver) ≥ 7.2; ≤ * (unaffected, original_commit_for_fix) Other versions: affected |
CNA: Linux |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
No CVSS assessment reported. An unscored record is not a low-severity determination.
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://git.kernel.org/stable/c/085a5fde5bac29c01059e69399b417e91c0a6c18CNA: Linux
- https://git.kernel.org/stable/c/31ea4b175bc3ab430be15834d9ee8a1ce65bee15CNA: Linux
- https://git.kernel.org/stable/c/20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591CNA: Linux
- https://git.kernel.org/stable/c/69a6a4f60b2da92c0bdfd9264b8ffe053f51f52aCNA: Linux
- https://git.kernel.org/stable/c/904367381a922aa2dc3e8bd2488e6c9180516c7aCNA: Linux
- https://git.kernel.org/stable/c/a154ca3c441a67d36b3a9ea63a4f11b06abe6223CNA: Linux
- https://git.kernel.org/stable/c/725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5CNA: Linux
- https://git.kernel.org/stable/c/7f11e70629650ff6ea140984e5ce188b775b2683CNA: Linux
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