erofs: fix metabuf leak in inode xattr initialization
In the Linux kernel, the following vulnerability has been resolved: erofs: fix metabuf leak in inode xattr initialization commit bb88e8da0025 ("erofs: use meta buffers for xattr operations") converted xattr operations to use on-stack erofs_buf instances. erofs_init_inode_xattrs() uses such a metabuf while reading the inline xattr header and shared xattr id array. Some error paths after erofs_read_metabuf() leave through out_unlock without dropping the metabuf, so the folio reference can leak. Consolidate the cleanup at out_unlock. erofs_put_metabuf() is a no-op if no folio has been acquired, and this keeps all paths after taking EROFS_I_BL_XATTR_BIT covered by a single cleanup site.
CVE-2026-64146
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-2026-64146
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": "bb88e8da00253bea0e7f0f4cdfd7910572d7799f",
"lessThan": "3812cfe6cb0a5988df4fedcdaf9aab677b9cca61",
"versionType": "git"
},
{
"status": "affected",
"version": "bb88e8da00253bea0e7f0f4cdfd7910572d7799f",
"lessThan": "e4a552e0b6413c1af2e140b5bc14bb849b411b57",
"versionType": "git"
},
{
"status": "affected",
"version": "bb88e8da00253bea0e7f0f4cdfd7910572d7799f",
"lessThan": "fcb23bb31508b62e8a1b32adf6217820e90e29b0",
"versionType": "git"
},
{
"status": "affected",
"version": "bb88e8da00253bea0e7f0f4cdfd7910572d7799f",
"lessThan": "492c73b21fefa36f3869cb2b188ffb7fe37b3a9b",
"versionType": "git"
},
{
"status": "affected",
"version": "bb88e8da00253bea0e7f0f4cdfd7910572d7799f",
"lessThan": "79b09c54c6563df9846ca3094bcfd72082c3e1d7",
"versionType": "git"
}
],
"programFiles": [
"fs/erofs/xattr.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.17"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.17",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.11",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/erofs/xattr.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-64146
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46424 · Revision 1
- Added to Heist Feed
- Publisher date