CVE-2023-53802
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 9, 2025
First seenDec 9, 2025
How to fix
Update
- Linux Linuxb11f95f65cc52ee3a756e6f6a88df37a203e25bd, 68171c006c8645a3e0293a6c3e6037c6538ac1c5, 564bc2222bf50eb6cdee715a5431bf4dc9f923c1, ec246dfe006b2a8f36353f7489e4f525114db9a5, c0c0614f143b568cd0e9525d53cf12e5dcd11987, 5a84e51f72580fc70066b03f3dac38421e702a0b, bbfababb4f899fe1556eac195f9774b6fe675fb6, 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < b11f95f65cc52ee3a756e6f6a88df37a203e25bd, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < 68171c006c8645a3e0293a6c3e6037c6538ac1c5, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < 564bc2222bf50eb6cdee715a5431bf4dc9f923c1, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < ec246dfe006b2a8f36353f7489e4f525114db9a5, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < c0c0614f143b568cd0e9525d53cf12e5dcd11987, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < 5a84e51f72580fc70066b03f3dac38421e702a0b, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < bbfababb4f899fe1556eac195f9774b6fe675fb6, fb9987d0f748c983bb795a86f47522313f701a08 ≤ v < 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69, 2.6.35 | b11f95f65cc52ee3a756e6f6a88df37a203e25bd, 68171c006c8645a3e0293a6c3e6037c6538ac1c5, 564bc2222bf50eb6cdee715a5431bf4dc9f923c1, ec246dfe006b2a8f36353f7489e4f525114db9a5, c0c0614f143b568cd0e9525d53cf12e5dcd11987, 5a84e51f72580fc70066b03f3dac38421e702a0b, bbfababb4f899fe1556eac195f9774b6fe675fb6, 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69 |
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