CVEvulnerability
CVE-2023-53802
- Status
- Deferred
- Published
- 2025-12-09
- Last modified
- 2026-06-17
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
It is stated that ath9k_htc_rx_msg() either frees the provided skb or
passes its management to another callback function. However, the skb is
not freed in case there is no another callback function, and Syzkaller was
able to cause a memory leak. Also minor comment fix.
Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
References
- https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1 git.kernel.org
- https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b git.kernel.org
- https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5 git.kernel.org
- https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69 git.kernel.org
- https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd git.kernel.org
- https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6 git.kernel.org
- https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987 git.kernel.org
- https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5 git.kernel.org