CVE-2026-68199

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 < d4558c140782180e2c80a7588a4af9f8675adfc4affected
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 < 5a65fd4722416061698b0a3277222381efbc4882affected
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 < 58c6c8dc2e022e1b4f3dc58725a1ca49ff470f9caffected
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 < cec0a487cf38ac1f9bca240ffe8a94c5014b72f2affected
LinuxLinuxbdcd81707973cf8aa9305337166f8ee842a050d4 < 44126b6994eeb28f2103b638e698f40a1244f327affected
LinuxLinux3.2affected
LinuxLinux0 < 3.2unaffected
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-rc5 <= *unaffected

Weaknesses

References