CVE-2022-49987: linux kernel — Fix

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

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.12 — 4.14.292
linux	linux_kernel	4.15 — 4.19.257
linux	linux_kernel	4.20 — 5.4.212
linux	linux_kernel	5.5 — 5.10.140
linux	linux_kernel	5.11 — 5.15.64
linux	linux_kernel	5.16 — 5.19.6
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

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

Frequently Asked Questions

What is CVE-2022-49987? +

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 It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49987? +

CVE-2022-49987 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-49987? +

CVE-2022-49987 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-49987? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-49987