CVE-2022-48946 Information

Description

In the Linux kernel the following vulnerability has been resolved:

udf: Fix preallocation discarding at indirect extent boundary

When preallocation extent is the first one in the extent block the code would corrupt extent tree header instead. Fix the problem and use udf_delete_aext() for deleting extent to avoid some code duplication.

CVSS Vector

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

Reference

https://git.kernel.org/stable/c/c8b6fa4511a7900db9fb0353b630d4d2ed1ba99c https://git.kernel.org/stable/c/7665857f88557c372da35534165721156756f77f https://git.kernel.org/stable/c/72f651c96c8aadf087fd782d551bf7db648a8c2e https://git.kernel.org/stable/c/4d835efd561dfb9bf5409f11f4ecd428d5d29226 https://git.kernel.org/stable/c/1a075f4a549481ce6e8518d8379f193ccec6b746 https://git.kernel.org/stable/c/63dbbd8f1499b0a161e701a04aa50148d60bd1f7 https://git.kernel.org/stable/c/ae56d9a017724f130cf1a263dd82a78d2a6e3852 https://git.kernel.org/stable/c/12a88f572d6d94b5c0b72e2d1782cc2e96ac06cf https://git.kernel.org/stable/c/cfe4c1b25dd6d2f056afc00b7c98bcb3dd0b1fc3

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5