md/raid1,raid10: fix bio accounting for split md cloned bios
In the Linux kernel, the following vulnerability has been resolved: md/raid1,raid10: fix bio accounting for split md cloned bios Use md_cloned_bio() to control bio accounting instead of relying on r1bio_existed in raid1 or the io_accounting flag in raid10. The previous logic does not reliably reflect whether a bio is an md cloned bio. When a failed bio is split and resubmitted via bio_submit_split_bioset() on the error path, this can lead to either double accounting for md cloned bios, or missing accounting for bios returned from bio_submit_split_bioset() Fix this by using md_cloned_bio() to detect md cloned bios and skip accounting accordingly.
CVE-2026-74373
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-2026-74373
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": "bb2a9acefaf9ce5bbc1e70f407e34599233d0243",
"lessThan": "91d0fc000d8cc40fcb4285e6160dd1ce98c56201",
"versionType": "git"
},
{
"status": "affected",
"version": "bb2a9acefaf9ce5bbc1e70f407e34599233d0243",
"lessThan": "235d16ae715104b981a4fbc9434398e3816773b1",
"versionType": "git"
},
{
"status": "affected",
"version": "bb2a9acefaf9ce5bbc1e70f407e34599233d0243",
"lessThan": "bcf30e14d2bd509c57e93021b46aedc878896e7b",
"versionType": "git"
},
{
"status": "affected",
"version": "bb2a9acefaf9ce5bbc1e70f407e34599233d0243",
"lessThan": "bb8d7ea74206b419aa05d7773a15a923b668c9f0",
"versionType": "git"
},
{
"status": "affected",
"version": "bb2a9acefaf9ce5bbc1e70f407e34599233d0243",
"lessThan": "ba976e3501111d11c550848b3b7341a73035f582",
"versionType": "git"
}
],
"programFiles": [
"drivers/md/raid1.c",
"drivers/md/raid10.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.6"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.6",
"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": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/md/raid1.c",
"drivers/md/raid10.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74373
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46552 · Revision 1
- Added to Heist Feed
- Publisher date