Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 468dfca38b1a6fbdccd195d875599cb7c8875cd9 before 2e25842f0e4423e0efb243f56153d842ed6b933f; affected 468dfca38b1a6fbdccd195d875599cb7c8875cd9 before 69ed43ed8a174465fca1ba6bfbde53e4618c8956; affected 468dfca38b1a6fbdccd195d875599cb7c8875cd9 before 7d4d4f3b668d708d94f62ecdd33ac330a6fd8a84 |
| Linux / Linux | affected 5.2; unaffected 0 before 5.2; unaffected 6.18.58 through 6.18.*; unaffected 7.2.12 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.