Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: blk-mq: setup queue ->tag_set before initializing hctx Commit 7b815817aa58 ("blk-mq: add helper for checking if one CPU is mapped to specified hctx") needs to check queue mapping via tag set in hctx's cpuhp handler. However, q->tag_set may not be setup yet when the cpuhp handler is enabled, then kernel oops is triggered. Fix the issue by setup queue tag_set before initializing hctx.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ff2d6ef107b1b1ec6b469073b4dda0dc744e343c before 73d964ce4bc8b4de88a7c2e40df494f0d5cd8950; affected dbd0829d2458d7292b82bfc9d02cce23935b198f before 25466e5b4bb11a8415ce8d0be89ab77135f7e444; affected 7b815817aa58d2e2101feb2fcf64c60cae0b2695 before d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87; affected 7b815817aa58d2e2101feb2fcf64c60cae0b2695 before c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95 |
| Linux / Linux | affected 6.10; unaffected 0 before 6.10; unaffected 6.11.5 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950
- https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444
- https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87
- https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95
ADP enrichment
No English description supplied.
No references supplied.