orangefs: fix double-free of trailer_buf on readdir copy failure
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.
CVE-2026-89498
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-89498
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "712c4235fcc73c11a2f1d59a499d489e49c374a4",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "433c2e470053cc9c712314d3d8c3dfbc862d68eb",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "2f5454a25127854c232fde5d1d65d16fbcd42d43",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "f796f38a324e89547738f4b70cc33be5be2bc6da",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "519f4146b8b8c5f20c2ad01913acd6df2df8fc8e",
"versionType": "git"
},
{
"status": "affected",
"version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
"lessThan": "f574296be7f46eb60beca851240b526df232f480",
"versionType": "git"
}
],
"programFiles": [
"fs/orangefs/devorangefs-req.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.109",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.50",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.4",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/orangefs/devorangefs-req.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-89498
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #35024 · Revision 1
- Added to Heist Feed
- Publisher date