erofs: fix interlaced ztailpacking pclusters
In the Linux kernel, the following vulnerability has been resolved: erofs: fix interlaced ztailpacking pclusters On-disk sizes of interlaced pclusters should be block-aligned, and ztailpacking interlaced pclusters should be invalid at all. Currently, mkfs.erofs won't generate any interlaced pcluster with ztailpacking enabled, so this doesn't affect any existing valid filesystems. However, crafted images can contain invalid interlaced ztailpacking pclusters, resulting in an out-of-bounds read from a kmap'd page and copying irrelevant kernel memory into userspace-visible page cache.
CVE-2026-90161
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-2026-90161
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": "fdffc091e6f94602558bba712b51bc16f79fd6d5",
"lessThan": "795dca34a41545d377d19bc492b10bc789772410",
"versionType": "git"
},
{
"status": "affected",
"version": "fdffc091e6f94602558bba712b51bc16f79fd6d5",
"lessThan": "cd59f91cbc1e715cb5dc65773ee22123d70cb8f2",
"versionType": "git"
},
{
"status": "affected",
"version": "fdffc091e6f94602558bba712b51bc16f79fd6d5",
"lessThan": "ddb7ea4fd99bf6c4314d1dfca18aec6945ce8054",
"versionType": "git"
},
{
"status": "affected",
"version": "fdffc091e6f94602558bba712b51bc16f79fd6d5",
"lessThan": "451027c642e752420e1a04237db9ce7b35cee595",
"versionType": "git"
},
{
"status": "affected",
"version": "fdffc091e6f94602558bba712b51bc16f79fd6d5",
"lessThan": "862427ebb81d1f6abbf74d799790e1694b37b187",
"versionType": "git"
},
{
"status": "affected",
"version": "7d6ef8277e44c22f894d54d26ddb36c22d60712d",
"versionType": "git"
},
{
"status": "affected",
"version": "6.0.16",
"lessThan": "6.1",
"versionType": "semver"
}
],
"programFiles": [
"fs/erofs/decompressor.c",
"fs/erofs/zmap.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.1"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.1",
"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": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/erofs/decompressor.c",
"fs/erofs/zmap.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90161
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #48622 · Revision 1
- Added to Heist Feed
- Publisher date