CVE-2026-68355

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 085a5fde5bac29c01059e69399b417e91c0a6c18affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 31ea4b175bc3ab430be15834d9ee8a1ce65bee15affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 20d18a5ec6ec364fcaf0d03af6fc43dcc42c6591affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 69a6a4f60b2da92c0bdfd9264b8ffe053f51f52aaffected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 904367381a922aa2dc3e8bd2488e6c9180516c7aaffected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < a154ca3c441a67d36b3a9ea63a4f11b06abe6223affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 725c1c3a8c5d920a7d3f5887412f2ad8e95a74f5affected
LinuxLinuxd5c65159f2895379e11ca13f62feabe93278985d < 7f11e70629650ff6ea140984e5ce188b775b2683affected
LinuxLinux5.6affected
LinuxLinux0 < 5.6unaffected
LinuxLinux5.10.265 <= 5.10.*unaffected
LinuxLinux5.15.216 <= 5.15.*unaffected
LinuxLinux6.1.183 <= 6.1.*unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.42 <= 6.18.*unaffected
LinuxLinux7.1.6 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References