CVE-2025-21772

partitions: mac: fix handling of bogus partition table

Description

In the Linux kernel, the following vulnerability has been resolved: partitions: mac: fix handling of bogus partition table Fix several issues in partition probing: - The bailout for a bad partoffset must use put_dev_sector(), since the preceding read_part_sector() succeeded. - If the partition table claims a silly sector size like 0xfff bytes (which results in partition table entries straddling sector boundaries), bail out instead of accessing out-of-bounds memory. - We must not assume that the partition table contains proper NUL termination - use strnlen() and strncmp() instead of strlen() and strcmp().

N/A

CVSS

Severity:

EPSS 0.07%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124
https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625
https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f
https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5
https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16b
https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f
https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27
https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0

Frequently Asked Questions

What is the severity of CVE-2025-21772?: CVE-2025-21772 has not yet been assigned a CVSS score.
How to fix CVE-2025-21772?: To fix CVE-2025-21772, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21772 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-21772 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21772?: CVE-2025-21772 affects Linux Linux, Linux Linux.

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