Vulnerability 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
- https://git.kernel.org/stable/c/2e25842f0e4423e0efb243f56153d842ed6b933f
- https://git.kernel.org/stable/c/69ed43ed8a174465fca1ba6bfbde53e4618c8956
- https://git.kernel.org/stable/c/7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84
FAQ
What is CVE-2026-99087?
CVE-2026-99087 is a documented vulnerability. 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 ...
How severe is CVE-2026-99087?
CVSS scoring is not yet available for CVE-2026-99087. Check NVD for updates.
Is there a patch for CVE-2026-99087?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.