Vulnerability in Linux

CVE-2024-50081

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.002 (9.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 9.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2024-50081: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

  • Linux — versions ff2d6ef107b1b1ec6b469073b4dda0dc744e343c, dbd0829d2458d7292b82bfc9d02cce23935b198f, 7b815817aa58d2e2101feb2fcf64c60cae0b2695
  • Linux Kernel — versions 6.12

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-50081?
CVE-2024-50081 is a medium-severity vulnerability in Linux. CVSS score: 5.5/10. Published 2024-10-29.
How severe is CVE-2024-50081?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2024-50081 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.