CVE-2024-50081
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedOct 29, 2024
First seenOct 29, 2024
How to fix
Update
- linux linux_kernel6.11.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.10 ≤ v < 6.11.5, 6.12 | 6.11.5 |
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