CVE-2026-97950configfs: pin the symlink target's dirent instead of chasing ->ci_dentry
- —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: configfs: pin the symlink target's dirent instead of chasing ->ci_dentry create_link() reads the target's configfs_dirent from item->ci_dentry->d_fsdata, relying on the item reference taken by get_target(). That reference pins the item, not its dentry: the dentry is pinned by DCACHE_PERSISTENT, which configfs_remove_dir() releases via simple_rmdir() while the item is still alive. A symlink racing with rmdir of its target can therefore find ->ci_dentry freed and its dirent released, triggering WARN_ON(!atomic_read(&sd->s_count)) in configfs_get(). Take the dirent in get_target() as well, under ->d_lock and atomically with the item reference, and pass it down to create_link(). A hashed dentry has not been killed yet, so its ->d_fsdata reference keeps the dirent alive there.
Timeline
ID reserved
By Linux
Published
- 26 days later
· 26 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 (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 7063fbf2261194f72ee75afca67b3b38b554b5fa – < a44744454eafbc158e8c8e3ef8d207076410b195
- affected 7063fbf2261194f72ee75afca67b3b38b554b5fa – < 846ff40fd57a47e59a41f4e331ec3b34efaddc23
- affected 7063fbf2261194f72ee75afca67b3b38b554b5fa – < 4f54beb2e7f6d399396466682fba3539bcdcb414
- affected 7063fbf2261194f72ee75afca67b3b38b554b5fa – < d47c5de1cd6bfbe1067fc310bf90e4e00205e839
- affected 7063fbf2261194f72ee75afca67b3b38b554b5fa – < a7c1290eef60711c10289c056ad32ed1f2b47b12
- affected 2.6.16
- unaffected < 2.6.16
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.112 – ≤ 6.12.*
- unaffected 6.18.53 – ≤ 6.18.*
- unaffected 7.2.7 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/a44744454eafbc158e8c8e3ef8d207076410b195 (opens in a new tab)
- https://git.kernel.org/stable/c/846ff40fd57a47e59a41f4e331ec3b34efaddc23 (opens in a new tab)
- https://git.kernel.org/stable/c/4f54beb2e7f6d399396466682fba3539bcdcb414 (opens in a new tab)
- https://git.kernel.org/stable/c/d47c5de1cd6bfbe1067fc310bf90e4e00205e839 (opens in a new tab)
- https://git.kernel.org/stable/c/a7c1290eef60711c10289c056ad32ed1f2b47b12 (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-2026-86804 (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-2026-97950)Record last updated .