CVE-2023-53802
wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.19% · top 91% of all CVEs (6 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < b11f95f65cc52ee3a756e6f6a88df37a203e25bd
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < 68171c006c8645a3e0293a6c3e6037c6538ac1c5
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < 564bc2222bf50eb6cdee715a5431bf4dc9f923c1
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < ec246dfe006b2a8f36353f7489e4f525114db9a5
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < c0c0614f143b568cd0e9525d53cf12e5dcd11987
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < 5a84e51f72580fc70066b03f3dac38421e702a0b
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < bbfababb4f899fe1556eac195f9774b6fe675fb6
- affected fb9987d0f748c983bb795a86f47522313f701a08 – < 9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69
- affected 2.6.35
- unaffected < 2.6.35
- unaffected 4.14.308 – ≤ 4.14.*
- unaffected 4.19.276 – ≤ 4.19.*
- unaffected 5.4.235 – ≤ 5.4.*
- unaffected 5.10.173 – ≤ 5.10.*
- unaffected 5.15.99 – ≤ 5.15.*
- unaffected 6.1.16 – ≤ 6.1.*
- unaffected 6.2.3 – ≤ 6.2.*
- unaffected 6.3 – ≤ *
References (8)
- https://git.kernel.org/stable/c/b11f95f65cc52ee3a756e6f6a88df37a203e25bd (opens in a new tab)
- https://git.kernel.org/stable/c/68171c006c8645a3e0293a6c3e6037c6538ac1c5 (opens in a new tab)
- https://git.kernel.org/stable/c/564bc2222bf50eb6cdee715a5431bf4dc9f923c1 (opens in a new tab)
- https://git.kernel.org/stable/c/ec246dfe006b2a8f36353f7489e4f525114db9a5 (opens in a new tab)
- https://git.kernel.org/stable/c/c0c0614f143b568cd0e9525d53cf12e5dcd11987 (opens in a new tab)
- https://git.kernel.org/stable/c/5a84e51f72580fc70066b03f3dac38421e702a0b (opens in a new tab)
- https://git.kernel.org/stable/c/bbfababb4f899fe1556eac195f9774b6fe675fb6 (opens in a new tab)
- https://git.kernel.org/stable/c/9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2023-53802)Record last updated .