CVE-2025-21772

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().

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-25)

CWE

CWE-787

Published

2025-02-27

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625
• https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5
• https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f
• https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f
• https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27

Check your stackJSON