CVE-2026-63822

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Source
https://cve.org/CVERecord?id=CVE-2026-63822
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63822.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-63822
Downstream
Published
2026-07-19T12:02:19.286Z
Modified
2026-07-21T03:47:30.142345958Z
Summary
wifi: ath11k: fix warning when unbinding
Details

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

wifi: ath11k: fix warning when unbinding

If there is an error during some initialization related to firmware, the buffers dp->txring[i].txstatus are released. However this is released again when the device is unbinded (ath11kpci), and we get: WARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 freelargekmalloc+0x57/0x90 Call Trace: freelargekmalloc ath11kdpfree ath11kcoredeinit ath11kpci_remove ...

The issue is always reproducible from a VM because the MSI addressing initialization is failing.

In order to fix the issue, just set the buffers to NULL after releasing in order to avoid the double free.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63822.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
d5c65159f2895379e11ca13f62feabe93278985d
Fixed
e569a5cb401a267168621aa9a1e7f07fcc9612c3
Fixed
0aa097a370277deab5337030b9e2d395742f469c
Fixed
0a946abb82f29abe9a15173b707a449cb039b43e
Fixed
318703b6f71d1a29ee0ac46c32a38f7734d4cfb2
Fixed
7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13
Fixed
40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a
Fixed
051f954b94479d72222c9fbc82a3eef4777bca01
Fixed
8b7a26b6681922a38cd5a7829ace61f8e54df9b7

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63822.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
5.6.0
Fixed
5.10.260
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.211
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.177
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.144
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.95
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.38
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.3

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63822.json"