GHSA-458p-v4rq-r32gunknown
In the Linux kernel, the following vulnerability has been resolved: dm-integrity: fix NULL...
🔗 CVE IDs covered (1)
📋 Description
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.
🔗 References (5)
- https://nvd.nist.gov/vuln/detail/CVE-2026-99087
- https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f
- https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956
- https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84
- https://github.com/advisories/GHSA-458p-v4rq-r32g