CVE-2026-90135net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 89% 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: net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs() sashiko is reporting that trying to read /sys/kernel/debug/ref_tracker/* causes use-afer-free crash when either alloc_percpu() or dev_addr_init() in alloc_netdev_mqs() failed, for commit 4d92b95ff2f9 ("net: add net device refcount tracker infrastructure") added ref_tracker_dir_exit() to only free_netdev() path.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 43 days later
· 43 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.21% · top 89% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < b0859020cab4ea6101478141aeec1b052ed80bdd
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < 45be87c5195f34c0a51598bc91186f600be5c4c9
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < 2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < 5fe03b5257095e2beef0bc79e1f068fbd09a24c7
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < 63ab05e8f9654aa100d366c0236399fda6ffaab1
- affected 4d92b95ff2f95f13df9bad0b5a25a9f60e72758d – < 0b1c2af8a22c35cb099c735c2f63ea3ba757557d
- affected 5.17
- unaffected < 5.17
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References6
- https://git.kernel.org/stable/c/b0859020cab4ea6101478141aeec1b052ed80bdd (opens in a new tab)
- https://git.kernel.org/stable/c/45be87c5195f34c0a51598bc91186f600be5c4c9 (opens in a new tab)
- https://git.kernel.org/stable/c/2775bf36be7872834a7f8c0a0d9681a1a3e1cd4c (opens in a new tab)
- https://git.kernel.org/stable/c/5fe03b5257095e2beef0bc79e1f068fbd09a24c7 (opens in a new tab)
- https://git.kernel.org/stable/c/63ab05e8f9654aa100d366c0236399fda6ffaab1 (opens in a new tab)
- https://git.kernel.org/stable/c/0b1c2af8a22c35cb099c735c2f63ea3ba757557d (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-2026-81728 (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-2026-90135)Record last updated .