partitions: mac: fix handling of bogus partition table

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Summary

CVECVE-2025-21772
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-27 03:15:17 UTC
Updated2026-05-12 13:16:36 UTC
DescriptionIn 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().

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-787

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 a3e77da9f843e4ab93917d30c314f0283e28c124 git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 213ba5bd81b7e97ac6e6190b8f3bc6ba76123625 git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 40a35d14f3c0dc72b689061ec72fc9b193f37d1f git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 27a39d006f85e869be68c1d5d2ce05e5d6445bf5 git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 92527100be38ede924768f4277450dfe8a40e16b git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 6578717ebca91678131d2b1f4ba4258e60536e9f git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 7fa9706722882f634090bfc9af642bf9ed719e27 git Not specified
CNA Linux Linux affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 80e648042e512d5a767da251d44132553fe04ae0 git Not specified
CNA Linux Linux affected 81a319c5c29913a23947f3d28513974682f3af03 git Not specified
CNA Linux Linux affected 34a906cd9f6445d9510841667eff0d980279ebf3 git Not specified
CNA Linux Linux affected 2a27f61bd411e564eb4651c18d225f6e9e1de534 git Not specified
CNA Linux Linux affected 69aad7e01c8e883e9d2f8dc5523bd419bd02d2aa git Not specified
CNA Linux Linux affected 7f4f03c4a1e9a4b9679feafe7625a780864a4e76 git Not specified
CNA Linux Linux affected 4.4 Not specified
CNA Linux Linux unaffected 4.4 semver Not specified
CNA Linux Linux unaffected 5.4.291 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.235 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.179 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.129 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.79 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.16 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13.4 6.13.* semver Not specified
CNA Linux Linux unaffected 6.14 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/05/msg00030.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00028.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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