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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.24%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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().
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625Patch
- https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5Patch
- https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1fPatch
- https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9fPatch
- https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27Patch
- https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0Patch
- https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16bPatch
- https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124Patch
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.