wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0bhttps://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bdhttps://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5