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CVE

DEBIAN-CVE-2022-50300

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in read_one_chunk Store the error code before freeing the extent...
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CVE

DEBIAN-CVE-2022-50300

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in read_one_chunk Store the error code before freeing the extent...

In the Linux kernel, the following vulnerability has been resolved:  btrfs: fix extent map use-after-free when handling missing device in readonechunk  Store the error code before freeing the extentmap. Though it's reference counted structure, in that function it's the first and last allocation so this would lead to a potential use-after-free.  The error can happen eg. when chunk is stored on a missing device and the degraded mount option is missing.  Bugzilla: https://bugzilla.kernel.org/showbug.cgi?id=216721

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://security-tracker.debian.org/tracker/CVE-2022-50300

Severity

7.8

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
7.8
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
6.1.4-1

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