Not yet scoredPublished Jul 19, 2026

CVE-2026-63822wifi: ath11k: fix warning when unbinding

Updated under an hour ago (Oct 28, 2026, 5:23 AM ET)

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Exploited in the last 30 days

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->tx_ring[i].tx_status are released. However this is released again when the device is unbinded (ath11k_pci), and we get: WARNING: CPU: 0 PID: 6231 at mm/slub.c:4368 free_large_kmalloc+0x57/0x90 Call Trace: free_large_kmalloc ath11k_dp_free ath11k_core_deinit ath11k_pci_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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Awaiting Analysis
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d5c65159f2895379e11ca13f62feabe93278985d before e569a5cb401a267168621aa9a1e7f07fcc9612c3; from d5c65159f2895379e11ca13f62feabe93278985d before 0aa097a370277deab5337030b9e2d395742f469c; from d5c65159f2895379e11ca13f62feabe93278985d before 0a946abb82f29abe9a15173b707a449cb039b43e; from d5c65159f2895379e11ca13f62feabe93278985d before 318703b6f71d1a29ee0ac46c32a38f7734d4cfb2; from d5c65159f2895379e11ca13f62feabe93278985d before 7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13; from d5c65159f2895379e11ca13f62feabe93278985d before 40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a; from d5c65159f2895379e11ca13f62feabe93278985d before 051f954b94479d72222c9fbc82a3eef4777bca01; from d5c65159f2895379e11ca13f62feabe93278985d before 8b7a26b6681922a38cd5a7829ace61f8e54df9b7	CNA record

References

References

https://git.kernel.org/stable/c/e569a5cb401a267168621aa9a1e7f07fcc9612c3
https://git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469c
https://git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43e
https://git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2
https://git.kernel.org/stable/c/7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13
https://git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a
https://git.kernel.org/stable/c/051f954b94479d72222c9fbc82a3eef4777bca01
https://git.kernel.org/stable/c/8b7a26b6681922a38cd5a7829ace61f8e54df9b7

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.