CVE-2026-68353
wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: ath6kl: fix OOB read from firmware num_msg in TX complete handler The firmware-controlled num_msg field (u8, 0-255) drives the loop in ath6kl_wmi_tx_complete_event_rx() without validation against the buffer length. This allows out-of-bounds reads of up to 1020 bytes past the WMI event buffer when the firmware sends an inflated num_msg. Add a check that the buffer is large enough to hold the fixed struct and the num_msg variable-length entries.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 10, 2026 |
| Last Updated | Aug 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
bdcd81707973cf8aa9305337166f8ee842a050d4 < 5297299c3fa6133275db0be99d69cd759b6cbfe9 bdcd81707973cf8aa9305337166f8ee842a050d4 < 35196a07603f8c94a4943093bc26d5b5826285f8 bdcd81707973cf8aa9305337166f8ee842a050d4 < 0e0fc04af9b443c6b425f00fb604ff599bc80d1d bdcd81707973cf8aa9305337166f8ee842a050d4 < 69ac7ba3a3df6654e7daa82674575a8c4a1a63ea bdcd81707973cf8aa9305337166f8ee842a050d4 < 289edc3c71344b89e6522891147cfb8f61b088bb bdcd81707973cf8aa9305337166f8ee842a050d4 < eb636fbc443149b3501c3f97e26225ddcb314a0f bdcd81707973cf8aa9305337166f8ee842a050d4 < c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 bdcd81707973cf8aa9305337166f8ee842a050d4 < 3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495
Linux / Linux
3.2
References
git.kernel.org: https://git.kernel.org/stable/c/5297299c3fa6133275db0be99d69cd759b6cbfe9 git.kernel.org: https://git.kernel.org/stable/c/35196a07603f8c94a4943093bc26d5b5826285f8 git.kernel.org: https://git.kernel.org/stable/c/0e0fc04af9b443c6b425f00fb604ff599bc80d1d git.kernel.org: https://git.kernel.org/stable/c/69ac7ba3a3df6654e7daa82674575a8c4a1a63ea git.kernel.org: https://git.kernel.org/stable/c/289edc3c71344b89e6522891147cfb8f61b088bb git.kernel.org: https://git.kernel.org/stable/c/eb636fbc443149b3501c3f97e26225ddcb314a0f git.kernel.org: https://git.kernel.org/stable/c/c38b0d5c661951b5dd082bdf31f8a57a0ce6e540 git.kernel.org: https://git.kernel.org/stable/c/3a21c89215cc18f1a97c5e5bfd1da6d4f3d44495