dm-integrity: fix NULL pointer dereference when the 'R' flag is used
In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL pointer dereference when the 'R' flag is used If the dm-integrity device has the SB_FLAG_DIRTY_BITMAP flag set and the user activates the device in the 'R' mode, a crash in dm_integrity_resume happens because the function attempts to read the journal containing the bitmap. This patch makes dm-integrity skip any writes to the device in dm_integrity_resume if the device is activated in the 'R' mode.
CVE-2026-99087
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-2026-99087
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": "468dfca38b1a6fbdccd195d875599cb7c8875cd9",
"lessThan": "2e25842f0e4423e0efb243f56153d842ed6b933f",
"versionType": "git"
},
{
"status": "affected",
"version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9",
"lessThan": "69ed43ed8a174465fca1ba6bfbde53e4618c8956",
"versionType": "git"
},
{
"status": "affected",
"version": "468dfca38b1a6fbdccd195d875599cb7c8875cd9",
"lessThan": "7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84",
"versionType": "git"
}
],
"programFiles": [
"drivers/md/dm-integrity.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.2"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.58",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.12",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/md/dm-integrity.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-99087
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #52910 · Revision 1
- Added to Heist Feed
- Publisher date