What’s Vulnerable › Vulnerabilities

CVE-2022-49987: md: call __md_stop_writes in md_stop

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-06-18 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: md: call __md_stop_writes in md_stop From the link [1], we can see raid1d was running even after the path raid_dtr -> md_stop -> __md_stop. Let's stop write first in destructor to align with normal md-raid to fix the KASAN issue. [1]. https://lore.kernel.org/linux-raid/CAPhsuW5gc4AakdGNdF8ubpezAuDLFOYUO_sfMZcec6hQFm8nhg@mail.gmail.com/T/#m7f12bf90481c02c6d2da68c64aeed4779b7df74a

Affected products

• Linux kernel: from 4.12 before 4.14.292; from 4.15 before 4.19.257; from 4.20 before 5.4.212; from 5.5 before 5.10.140; from 5.11 before 5.15.64; from 5.16 before 5.19.6 — fixed in 4.14.292, 4.19.257, 5.10.140, 5.15.64, 5.19.6, 5.4.212

How to fix

Upgrade to a fixed version: Linux kernel 4.14.292, 4.19.257, 5.10.140, 5.15.64. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0dd84b319352bb8ba64752d4e45396d8b13e6018
• https://git.kernel.org/stable/c/1678ca35b80a94d474fdc31e2497ce5d7ed52512
• https://git.kernel.org/stable/c/661c01b2181d9413c799127f13143583b69f20fd
• https://git.kernel.org/stable/c/690b5c90fd2d81fd1d2b6110fa36783232f6dce2
• https://git.kernel.org/stable/c/8e7fb19f1a744fd34e982633ced756fee0498ef7
• https://git.kernel.org/stable/c/a5a58fab556bfe618b4c9719eb85712d78c6cb10
• https://git.kernel.org/stable/c/f42a9819ba84bed2e609a4dff56af37063dcabdc

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