CVE-2026-64442
Description
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix OOB reads in IE loops in issue_assocreq() and join_cmd_hdl()
Two IE parsing loops are missing the header bounds checks before they
dereference pIE->length:
- issue_assocreq() walks pmlmeinfo->network.ies to build the
association request. If the stored IE data ends with only an
element_id byte and no length byte, pIE->length is read one byte
past the end of the buffer.
- join_cmd_hdl() walks pnetwork->ies during station join and has
the same problem under the same conditions.
Both buffers are filled from AP beacon and probe-response frames, so a
malicious AP that sends a truncated final IE can trigger the issue.
Apply the two-guard pattern established in update_beacon_info():
1. Break if fewer than sizeof(*pIE) bytes remain.
2. Break if the IE's declared data extends past the buffer end.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 554c0a3abf216c991c5ebddcdb2c08689ecd290b < bc881c9915c4468747d0ca5fd1abd7b313cfb0f4, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 605ebd94d0f469204f3c9f2f84acc71e43e2780f, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < a830bdc82461353bf7b1f8a2ad2689bf5d2de444, 554c0a3abf216c991c5ebddcdb2c08689ecd290b < 4c21eec80cf502d9ea18e0b946246b2376452786 … |
| Linux | Linux | — | 4.12, 0 < 4.12, 5.10.261 ≤ 5.10.*, 5.15.212 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/bc881c9915c4468747d0ca5fd1abd7b313cfb0f4
- https://git.kernel.org/stable/c/605ebd94d0f469204f3c9f2f84acc71e43e2780f
- https://git.kernel.org/stable/c/a830bdc82461353bf7b1f8a2ad2689bf5d2de444
- https://git.kernel.org/stable/c/4c21eec80cf502d9ea18e0b946246b2376452786
- https://git.kernel.org/stable/c/ad2637c46ef8b8ae0894372a2d39fdfcdc420a1e
- https://git.kernel.org/stable/c/c38d16b1ffac385c9e4b38447cd5c46af1114b58
- https://git.kernel.org/stable/c/402f13ec95945f34a210b28df1f8740d3d4a58c5
- https://git.kernel.org/stable/c/ef61d628dfad38fead1fd2e08979ae9126d011d5