CVE-2026-68355

wifi: ath11k: fix potential buffer underflow in ath11k_hal_rx_msdu_list_get()

N/A
Published: August 10, 2026 at 12:03 PM UTC
Updated: August 19, 2026 at 05:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.6 ≤ v < 5.10.2655.6 ≤ v < 5.15.2165.6 ≤ v < 6.1.1835.6 ≤ v < 6.12.1015.6 ≤ v < 6.18.425.6 ≤ v < 6.6.1485.6 ≤ v < 7.1.65.6 ≤ v < 7.25.6d5c65159f2895379e11ca13f62feabe93278985d
Vendor states this is fixed in 085a5fde5bac29c01059e69399b417e91c0a6c18 (fixed)
Vendor states this is fixed in 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591 (fixed)
Vendor states this is fixed in 31ea4b175bc3ab430be15834d9ee8a1ce65bee15 (fixed)
Vendor states this is fixed in 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52a (fixed)
Vendor states this is fixed in 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5 (fixed)
Vendor states this is fixed in 7f11e70629650ff6ea140984e5ce188b775b2683 (fixed)
Vendor states this is fixed in 904367381a922aa2dc3e8bd2488e6c9180516c7a (fixed)
Vendor states this is fixed in a154ca3c441a67d36b3a9ea63a4f11b06abe6223 (fixed)
Vendor states this is fixed in 5.10.265 (unaffected)
Vendor states this is fixed in 5.15.216 (unaffected)
Vendor states this is fixed in 5.6 (unaffected)
Vendor states this is fixed in 6.1.183 (unaffected)
Vendor states this is fixed in 6.12.101 (unaffected)
Vendor states this is fixed in 6.18.42 (unaffected)
Vendor states this is fixed in 6.6.148 (unaffected)
Vendor states this is fixed in 7.1.6 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusRECEIVED

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