CVE-2026-99087: dm-integrity: fix NULL pointer dereference when the 'R' flag is used
Published Oct 23, 2026
·Updated
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 SBFLAGDIRTYBITMAP flag set and the user activates the device in the 'R' mode, a crash in dmintegrityresume happens because the function attempts to read the journal containing the bitmap.
This patch makes dm-integrity skip any writes to the device in dmintegrityresume if the device is activated in the 'R' mode.
Affected Software
1 affected component
Linux dm-integrity
Event History
Oct 23, 2026
CVE Published
via MITRE·12:45 PM
Data Sourced
via MITRE·12:45 PM
Description