CVE-2022-49987
What it is
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
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 4.14.292
- Linux Kernel < 4.19.257
- Linux Kernel < 5.4.212
- Linux Kernel < 5.10.140
- Linux Kernel < 5.15.64
- Linux Kernel < 5.19.6
- Linux Kernel 6.0
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Fix and advisories
- 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
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