CVE-2024-50081
blk-mq: setup queue ->tag_set before initializing hctx
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 29, 2024 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
ff2d6ef107b1b1ec6b469073b4dda0dc744e343c < 73d964ce4bc8b4de88a7c2e40df494f0d5cd8950 dbd0829d2458d7292b82bfc9d02cce23935b198f < 25466e5b4bb11a8415ce8d0be89ab77135f7e444 7b815817aa58d2e2101feb2fcf64c60cae0b2695 < d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87 7b815817aa58d2e2101feb2fcf64c60cae0b2695 < c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95
Linux / Linux
6.10
References
git.kernel.org: https://git.kernel.org/stable/c/73d964ce4bc8b4de88a7c2e40df494f0d5cd8950 git.kernel.org: https://git.kernel.org/stable/c/25466e5b4bb11a8415ce8d0be89ab77135f7e444 git.kernel.org: https://git.kernel.org/stable/c/d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87 git.kernel.org: https://git.kernel.org/stable/c/c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95