netfs: release readahead folios on iterator preparation failure
In the Linux kernel, the following vulnerability has been resolved: netfs: release readahead folios on iterator preparation failure netfs_prepare_read_iterator() batches readahead folios in put_batch so that the folio references can be dropped after the I/O iterator has been prepared. If rolling_buffer_load_from_ra() fails after earlier folios have been batched, the function returns immediately and leaves those references held. Release the batch before returning the error.
CVE-2026-80897
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-2026-80897
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": "e0186fa7436e55db10cecc2308749e2a877269a5",
"lessThan": "9ef7c3c5cf771286f187aed199dac0972404cc0f",
"versionType": "git"
},
{
"status": "affected",
"version": "06fa229ceb36898e68022b5654c017d2c6582d7d",
"lessThan": "2c148a31ca01fc160aceec777bbc0041b0d0b8bd",
"versionType": "git"
},
{
"status": "affected",
"version": "06fa229ceb36898e68022b5654c017d2c6582d7d",
"lessThan": "935e7b74bb2368f215cf8c2ad4bff60ee4e7589e",
"versionType": "git"
},
{
"status": "affected",
"version": "06fa229ceb36898e68022b5654c017d2c6582d7d",
"lessThan": "87eb3d272dcbcbbfe5c1576c10e5dc72810cf1f6",
"versionType": "git"
}
],
"programFiles": [
"fs/netfs/buffered_read.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/netfs/buffered_read.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-80897
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46644 · Revision 1
- Added to Heist Feed
- Publisher date