CVE-2026-63822: linux

CVSS: UnknownAwaiting analysis
AliasesUBUNTU-CVE-2026-63822DEBIAN-CVE-2026-63822
Published 19-07-2026Last modified 17-08-2026
Open JSON

Vulnerability summary

CVE-2026-63822 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 6.4% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.17%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 32 · Related 29
MGASA-2026-0312OPENSUSE-SU-2026:11339-1OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1

Timeline

  1. 19-07-2026
    PublishedVulnerability first disclosed.
  2. 17-08-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

0.00 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-198.208 | < 6.8.0-147.147 | < 7.0.0-31.31
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1117.124 | < 6.8.0-1067.70 | < 7.0.0-1012.12
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.177-1 | < 6.12.95-1 | < 7.1.3-1
Linux1 product
  • linux≥ d5c65159f2895379e11ca13f62feabe93278985d, < e569a5cb401a267168621aa9a1e7f07fcc9612c3 | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 0aa097a370277deab5337030b9e2d395742f469c | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 0a946abb82f29abe9a15173b707a449cb039b43e | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 318703b6f71d1a29ee0ac46c32a38f7734d4cfb2 | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 7b2e62b9080bf4a5f4e70cfe47156df8d93a4f13 | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 40aa3c2b0cb8e34e0576fc94cc70e4e33db03c0a | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 051f954b94479d72222c9fbc82a3eef4777bca01 | ≥ d5c65159f2895379e11ca13f62feabe93278985d, < 8b7a26b6681922a38cd5a7829ace61f8e54df9b7 | 5.6

3 vendors · 159 products

References

30 links
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