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CVE-2024-50081

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CVE-2024-50081

Published: Oct 29, 2024

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
ff2d6ef107b1b1ec6b469073b4dda0dc744e343c - < 73d964ce4bc8b4de88a7c2e40df494f0d5cd8950
affected
dbd0829d2458d7292b82bfc9d02cce23935b198f - < 25466e5b4bb11a8415ce8d0be89ab77135f7e444
affected
7b815817aa58d2e2101feb2fcf64c60cae0b2695 - < d28b256db525d9432bc3eb2c8d83f7d3f5e1cc87
affected
7b815817aa58d2e2101feb2fcf64c60cae0b2695 - < c25c0c9035bb8b28c844dfddeda7b8bdbcfcae95

Linux

Linux

affected
6.10
unaffected
0 - < 6.10
unaffected
6.11.5 - <= 6.11.*
unaffected
6.12 - <= *

References

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