CVEvulnerability
CVE-2026-64536
8.1 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-07-27
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.1 HIGH — CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- Weaknesses
- CWE-125
Description
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop
The loop in is_ap_in_tkip() iterates over IEs without verifying that
enough bytes remain before dereferencing the IE header or its payload:
- pIE->element_id and pIE->length are read without checking that
i + sizeof(*pIE) <= ie_length, so a truncated IE at the end of the
buffer causes an OOB read.
- For WLAN_EID_VENDOR_SPECIFIC the code compares pIE->data + 12,
which requires pIE->length >= 16. For WLAN_EID_RSN it compares
pIE->data + 8, requiring pIE->length >= 12. Neither requirement
is checked.
Add the missing IE header and payload bounds checks and guard each
data access with an explicit pIE->length minimum, matching the
pattern established in update_beacon_info().
Related
Weakness · CWE (1)
- CWE-125 Out-of-bounds Read weakness
References
- https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396 git.kernel.org
- https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81 git.kernel.org
- https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6 git.kernel.org
- https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209 git.kernel.org
- https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395 git.kernel.org
- https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019 git.kernel.org
- https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7 git.kernel.org