CVE-2023-53802wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Deferred
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from fb9987d0f748c983bb795a86f47522313f701a08 before b11f95f65cc52ee3a756e6f6a88df37a203e25bd; from fb9987d0f748c983bb795a86f47522313f701a08 before 68171c006c8645a3e0293a6c3e6037c6538ac1c5; from fb9987d0f748c983bb795a86f47522313f701a08 before 564bc2222bf50eb6cdee715a5431bf4dc9f923c1; from fb9987d0f748c983bb795a86f47522313f701a08 before ec246dfe006b2a8f36353f7489e4f525114db9a5; from fb9987d0f748c983bb795a86f47522313f701a08 before c0c0614f143b568cd0e9525d53cf12e5dcd11987; from fb9987d0f748c983bb795a86f47522313f701a08 before 5a84e51f72580fc70066b03f3dac38421e702a0b; from fb9987d0f748c983bb795a86f47522313f701a08 before bbfababb4f899fe1556eac195f9774b6fe675fb6; from fb9987d0f748c983bb795a86f47522313f701a08 before 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69 | CNA record |
References
- https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd
- https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5
- https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1
- https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5
- https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987
- https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b
- https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6
- https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.