- 7.8HighCVSS base score
- 0.17%Exploitation in 30 daysEPSS · top 94% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: ftrace: Take trace_array reference before accessing its ftrace_ops The trace instance files set_ftrace_filter and set_ftrace_notrace was updated to work with specific trace instances (trace_arrays). The issue is that when these files are opened, there is a small race window where it will use the ftrace_ops from the inode->private pointer to get a reference to the trace_array and then take its reference. The problem is that the ftrace_ops itself could be freed. If the rmdir on the instance happens at the same time the set_ftrace_filter file is opened, the rmdir could have also freed the ftrace_ops and referencing it will cause a use-after-free bug and crash the kernel. Instead, pass in the trace_array as the file private data (NULL for the top level instance), and then pass both the trace_array and the ftrace_ops to the ftrace_regex_open() function. If the trace_array is NULL, then it just uses the ftrace_ops without the need to take its reference (like normal). If the ftrace_ops is NULL, that is only the case for the top level instance and the global_ops can be used. This allows the trace_array to have its reference incremented before touching the ftrace_ops that could also be freed when the instance is.
Timeline
ID reserved
By Linux
- 5 days later
· 5 days later
Published
- 44 days later
· 44 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.17% · top 94% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 0124b36a7eac1dd0402146fc6c1f732877b9cd9f
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < ffe16fe221e25cd1915602e6753c3d3285ed9a98
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 8f062a6bfeb4b4e18d469a673aec23a7b73c3e8a
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 29266da8ee1d9be656b1f22460c49538e1930658
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 177cd8966325f0ffffa3c9381f9e0422019a3973
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 83fd7eca5ab0d3ac3f23bff889175d847e21af06
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < cee8f286794df916553d8d445eac5c323ec5b0f8
- affected 591dffdade9f07692a7dd3ed16830ec24e901ece – < 9100191e5acb2e5ea2313f436667bb5fce129f47
- affected 3.15
- unaffected < 3.15
- unaffected 5.10.273 – ≤ 5.10.*
- unaffected 5.15.224 – ≤ 5.15.*
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.5 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/0124b36a7eac1dd0402146fc6c1f732877b9cd9f (opens in a new tab)
- https://git.kernel.org/stable/c/ffe16fe221e25cd1915602e6753c3d3285ed9a98 (opens in a new tab)
- https://git.kernel.org/stable/c/8f062a6bfeb4b4e18d469a673aec23a7b73c3e8a (opens in a new tab)
- https://git.kernel.org/stable/c/29266da8ee1d9be656b1f22460c49538e1930658 (opens in a new tab)
- https://git.kernel.org/stable/c/177cd8966325f0ffffa3c9381f9e0422019a3973 (opens in a new tab)
- https://git.kernel.org/stable/c/83fd7eca5ab0d3ac3f23bff889175d847e21af06 (opens in a new tab)
- https://git.kernel.org/stable/c/cee8f286794df916553d8d445eac5c323ec5b0f8 (opens in a new tab)
- https://git.kernel.org/stable/c/9100191e5acb2e5ea2313f436667bb5fce129f47 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-80610 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-90002)Record last updated .