isofs: release zisofs block pointer buffer head
In the Linux kernel, the following vulnerability has been resolved: isofs: release zisofs block pointer buffer head zisofs_fill_pages() reads the compressed block pointer table. The error paths release the current buffer_head, the loop also releases the old buffer_head when it advances. However, the success path leaves the last buffer_head referenced. Release it before returning success.
CVE-2026-90434
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-2026-90434
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": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "dbcc7d1b818162aeab2e97fd217d86546d9fde15",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "ec33e6b7a1de20d7e623b12633191a855445657d",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "0c2c54a7d174edc845f7bae24179fe72a926d10f",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "5677737c2cedf417c0fcf61540b9cef0e62273d4",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "f2a1611065c700a374b31c5cc8a7587f5e3bfe73",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "106e1a3b2b3454fbda63a59e9290cb9a253f81aa",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "3371d30a97a257b7b5f2c8009612e9d452180f0a",
"versionType": "git"
},
{
"status": "affected",
"version": "59bc055211b8d266ab6089158058bf8268e02006",
"lessThan": "2f7dd9b86fe4076059e6a4a2a2c5d565afd76b9e",
"versionType": "git"
}
],
"programFiles": [
"fs/isofs/compress.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "2.6.33"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "2.6.33",
"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": "6.12.110",
"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/isofs/compress.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90434
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36749 · Revision 1
- Added to Heist Feed
- Publisher date