In the Linux kernel, the following vulnerability has been resolved: blk-mq: make sure active queue usage is held for bio_integrity_prep() blk_integrity_unregister() can come if queue usage counter isn't held for one bio with integrity prepared, so this request may be completed with calling profile->complete_fn, then kernel panic. Another constraint is that bio_integrity_prep() needs to be called before bio merge. Fix the issue by: - call bio_integrity_prep() with one queue usage counter grabbed reliably - call bio_integrity_prep() before bio merge
| Product | Vendor | Version |
|---|---|---|
| Linux | Linux | < f2479c3daaabccbac6c343a737615d0c595c6dc4 |
| Linux | Linux | < c383c7c35c7bc15e07a04eefa060a8a80cbeae29 |