CVEvulnerability
CVE-2026-98890
- Status
- Received
- Published
- 2026-10-23
- Last modified
- 2026-10-26
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: libertas: reject short monitor TX frames
In monitor mode, lbs_hard_start_xmit() casts skb->data to a
radiotap TX header, skips that header, and then copies the 802.11
destination address from offset 4 in the remaining frame. The
generic length check only rejects zero-length and oversized skbs, so
a short monitor frame can be read past the end of the skb data.
Require enough bytes for the radiotap TX header and the destination
address field before using the monitor-mode header layout.
References
- https://git.kernel.org/stable/c/13ff543e0b2c713aedeaadadde686686e949dc78 git.kernel.org
- https://git.kernel.org/stable/c/443fac3de65c76544b450b9f9903be8989150d55 git.kernel.org
- https://git.kernel.org/stable/c/6576baa3fdbaa91fa75e4ba27095f4b8a27349a8 git.kernel.org
- https://git.kernel.org/stable/c/68c92c991ddb75dfd3fd62a94a1d4d2dde44dc3c git.kernel.org
- https://git.kernel.org/stable/c/b657cc98d7936c5d9ed7e0e1944ad0e1f36375bb git.kernel.org
- https://git.kernel.org/stable/c/cdcfd662c67833d89ee3d912efde2eb67c8a7326 git.kernel.org
- https://git.kernel.org/stable/c/d865dd6de8295f2bfaa83f0f5d49d2bef1543065 git.kernel.org