CVE-2023-53802
wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Dec 9, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
fb9987d0f748c983bb795a86f47522313f701a08 < b11f95f65cc52ee3a756e6f6a88df37a203e25bd fb9987d0f748c983bb795a86f47522313f701a08 < 68171c006c8645a3e0293a6c3e6037c6538ac1c5 fb9987d0f748c983bb795a86f47522313f701a08 < 564bc2222bf50eb6cdee715a5431bf4dc9f923c1 fb9987d0f748c983bb795a86f47522313f701a08 < ec246dfe006b2a8f36353f7489e4f525114db9a5 fb9987d0f748c983bb795a86f47522313f701a08 < c0c0614f143b568cd0e9525d53cf12e5dcd11987 fb9987d0f748c983bb795a86f47522313f701a08 < 5a84e51f72580fc70066b03f3dac38421e702a0b fb9987d0f748c983bb795a86f47522313f701a08 < bbfababb4f899fe1556eac195f9774b6fe675fb6 fb9987d0f748c983bb795a86f47522313f701a08 < 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69
Linux / Linux
2.6.35
References
git.kernel.org: https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd git.kernel.org: https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5 git.kernel.org: https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1 git.kernel.org: https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5 git.kernel.org: https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987 git.kernel.org: https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b git.kernel.org: https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6 git.kernel.org: https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69