CVE-2023-53802

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Source
https://cve.org/CVERecord?id=CVE-2023-53802
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53802.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-53802
Downstream
Related
Published
2025-12-09T00:00:58.582Z
Modified
2026-03-27T09:13:15.343643Z
Summary
wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: ath9k: htchst: free skb in ath9khtcrxmsg() if there is no callback function

It is stated that ath9khtcrx_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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53802.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
fb9987d0f748c983bb795a86f47522313f701a08
Fixed
b11f95f65cc52ee3a756e6f6a88df37a203e25bd
Fixed
68171c006c8645a3e0293a6c3e6037c6538ac1c5
Fixed
564bc2222bf50eb6cdee715a5431bf4dc9f923c1
Fixed
ec246dfe006b2a8f36353f7489e4f525114db9a5
Fixed
c0c0614f143b568cd0e9525d53cf12e5dcd11987
Fixed
5a84e51f72580fc70066b03f3dac38421e702a0b
Fixed
bbfababb4f899fe1556eac195f9774b6fe675fb6
Fixed
9b25e3985477ac3f02eca5fc1e0cc6850a3f7e69

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53802.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
2.6.35
Fixed
4.14.308
Type
ECOSYSTEM
Events
Introduced
4.15.0
Fixed
4.19.276
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.235
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.173
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.99
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.16
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.2.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53802.json"