CVE-2023-53802wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (12 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
References8
- 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)
- EUVD EUVD-2023-60104 (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://cveledger.app/cve/CVE-2023-53802)Record last updated .