md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb
In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: fix wrong bitmap_limit for clustermd when write sb In clustermd, separate write-intent-bitmaps are used for each cluster node: 0 4k 8k 12k ------------------------------------------------------------------- | idle | md super | bm super [0] + bits | | bm bits[0, contd] | bm super[1] + bits | bm bits[1, contd] | | bm super[2] + bits | bm bits [2, contd] | bm super[3] + bits | | bm bits [3, contd] | | | So in node 1, pg_index in __write_sb_page() could equal to bitmap->storage.file_pages. Then bitmap_limit will be calculated to 0. md_super_write() will be called with 0 size. That means the first 4k sb area of node 1 will never be updated through filemap_write_page(). This bug causes hang of mdadm/clustermd_tests/01r1_Grow_resize. Here use (pg_index % bitmap->storage.file_pages) to make calculation of bitmap_limit correct.
CVE-2025-22124
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-2025-22124
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": "655cc01889fa9b65441922565cddee64af49e6d6",
"lessThan": "5eaf57fdfa37c869e61e9908e03edd707f9145b8",
"versionType": "git"
},
{
"status": "affected",
"version": "ab99a87542f194f28e2364a42afbf9fb48b1c724",
"lessThan": "60196f92bbc7901eb5cfa5d456651b87ea50a4a3",
"versionType": "git"
},
{
"status": "affected",
"version": "ab99a87542f194f28e2364a42afbf9fb48b1c724",
"lessThan": "bc3a9788961631359527763d7e1fcf26554c7cb1",
"versionType": "git"
},
{
"status": "affected",
"version": "ab99a87542f194f28e2364a42afbf9fb48b1c724",
"lessThan": "6130825f34d41718c98a9b1504a79a23e379701e",
"versionType": "git"
},
{
"status": "affected",
"version": "5600d6013c634c2b6b6c6c55c8ecb50c3a6211f2",
"versionType": "git"
},
{
"status": "affected",
"version": "6.6.44",
"lessThan": "6.6.157",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.10.3",
"lessThan": "6.11",
"versionType": "semver"
}
],
"programFiles": [
"drivers/md/md-bitmap.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.11"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.11",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.46",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.14.2",
"versionType": "semver",
"lessThanOrEqual": "6.14.*"
},
{
"status": "unaffected",
"version": "6.15",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/md/md-bitmap.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-22124
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30463 · Revision 1
- Added to Heist Feed
- Publisher date