Vulnerability CVE-2023-52458

Vulnerability CVE-2023-52458

Published: 2024-02-23

Description:

In the Linux kernel, the following vulnerability has been resolved:

block: add check that partition length needs to be aligned with block size

Before calling add partition or resize partition, there is no check
on whether the length is aligned with the logical block size.
If the logical block size of the disk is larger than 512 bytes,
then the partition size maybe not the multiple of the logical block size,
and when the last sector is read, bio_truncate() will adjust the bio size,
resulting in an IO error if the size of the read command is smaller than
the logical block size.If integrity data is supported, this will also
result in a null pointer dereference when calling bio_integrity_free.

References:

https://git.kernel.org/stable/c/5010c27120962c85d2f421d2cf211791c9603503

https://git.kernel.org/stable/c/ef31cc87794731ffcb578a195a2c47d744e25fb8

https://git.kernel.org/stable/c/cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8

https://git.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5

https://git.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016

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