CVE-2026-89498orangefs: fix double-free of trailer_buf on readdir copy failure
- —Not scoredno CVSS score yet
- 0.18%Exploitation in 30 daysEPSS · top 93% 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: orangefs: fix double-free of trailer_buf on readdir copy failure On a readdir downcall, orangefs_devreq_write_iter() frees op->downcall.trailer_buf with vfree() when copy_from_iter_full() fails, but does not clear the pointer before goto Efault. The waiter in do_readdir() is then woken with a negative status and frees the same pointer again on its r < 0 path, causing a deterministic double-free. A client holding /dev/pvfs2-req triggers it by sending a readdir downcall whose declared trailer_size exceeds the bytes it supplies. Clear the pointer after freeing so the readdir-side vfree() becomes a no-op.
Timeline
ID reserved
By Linux
Published
- 38 days later
· 38 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)
- 0.18% · top 93% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 712c4235fcc73c11a2f1d59a499d489e49c374a4
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 433c2e470053cc9c712314d3d8c3dfbc862d68eb
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 2f5454a25127854c232fde5d1d65d16fbcd42d43
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < f796f38a324e89547738f4b70cc33be5be2bc6da
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < 519f4146b8b8c5f20c2ad01913acd6df2df8fc8e
- affected 382f4581e67f57209c7aa67e39f26ba076306a2e – < f574296be7f46eb60beca851240b526df232f480
- affected 4.12
- unaffected < 4.12
- unaffected 5.10.270 – ≤ 5.10.*
- unaffected 5.15.221 – ≤ 5.15.*
- unaffected 6.1.188 – ≤ 6.1.*
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.109 – ≤ 6.12.*
- unaffected 6.18.50 – ≤ 6.18.*
- unaffected 7.2.4 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References8
- https://git.kernel.org/stable/c/712c4235fcc73c11a2f1d59a499d489e49c374a4 (opens in a new tab)
- https://git.kernel.org/stable/c/433c2e470053cc9c712314d3d8c3dfbc862d68eb (opens in a new tab)
- https://git.kernel.org/stable/c/6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad (opens in a new tab)
- https://git.kernel.org/stable/c/9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa (opens in a new tab)
- https://git.kernel.org/stable/c/2f5454a25127854c232fde5d1d65d16fbcd42d43 (opens in a new tab)
- https://git.kernel.org/stable/c/f796f38a324e89547738f4b70cc33be5be2bc6da (opens in a new tab)
- https://git.kernel.org/stable/c/519f4146b8b8c5f20c2ad01913acd6df2df8fc8e (opens in a new tab)
- https://git.kernel.org/stable/c/f574296be7f46eb60beca851240b526df232f480 (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-2026-76404 (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-2026-89498)Record last updated .