wifi: ath11k: fix warning when unbinding
Summary
| CVE | CVE-2026-63822 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-19 12:16:55 UTC |
| Updated | 2026-07-19 12:16:55 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.001650000 probability, percentile 0.060320000 (date 2026-07-20)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d e569a5cb401a267168621aa9a1e7f07fcc9612c3 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 0aa097a370277deab5337030b9e2d395742f469c git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 0a946abb82f29abe9a15173b707a449cb039b43e git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 318703b6f71d1a29ee0ac46c32a38f7734d4cfb2 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 051f954b94479d72222c9fbc82a3eef4777bca01 git | Not specified |
| CNA | Linux | Linux | affected d5c65159f2895379e11ca13f62feabe93278985d 8b7a26b6681922a38cd5a7829ace61f8e54df9b7 git | Not specified |
| CNA | Linux | Linux | affected 5.6 | Not specified |
| CNA | Linux | Linux | unaffected 5.6 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.260 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.211 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.177 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.144 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.95 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.38 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.3 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/0aa097a370277deab5337030b9e2d395742f469c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/318703b6f71d1a29ee0ac46c32a38f7734d4cfb2 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/051f954b94479d72222c9fbc82a3eef4777bca01 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8b7a26b6681922a38cd5a7829ace61f8e54df9b7 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0a946abb82f29abe9a15173b707a449cb039b43e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e569a5cb401a267168621aa9a1e7f07fcc9612c3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.