CVE-2026-64536
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().
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 554c0a3abf216c991c5ebddcdb2c08689ecd290b < ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < d2055332297e24c63fffda943ef7a5eefc0a6019, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 6f26cc55affd9d7f88ae2f5d12db4ecf9072c209, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 204b22c8df115370037248859bf0fa62db73a396 … |
| Linux | Linux | — | 4.12, 0 < 4.12, 5.15.212 ≤ 5.15.*, 6.1.178 ≤ 6.1.* … |
References (7)
- https://git.kernel.org/stable/c/ea3809f7e20bdff282b8cc1e94937d5fb9fb32c7
- https://git.kernel.org/stable/c/d2055332297e24c63fffda943ef7a5eefc0a6019
- https://git.kernel.org/stable/c/6f26cc55affd9d7f88ae2f5d12db4ecf9072c209
- https://git.kernel.org/stable/c/204b22c8df115370037248859bf0fa62db73a396
- https://git.kernel.org/stable/c/a6105ea8ca6ebbc04beaf3bcbf7dbb5985f5d395
- https://git.kernel.org/stable/c/4380b3860d887a13555ff024a58dfc05b490dfd6
- https://git.kernel.org/stable/c/3bf39f711ff27c64be8680a8938bcc5001982e81