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CVE-2025-21772

partitions: mac: fix handling of bogus partition table

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 3.3, 3.5, 3.11, 3.13, 3.15, and 7 more
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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().

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Linux Linux

    From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in a3e77da9f843e4ab93917d30c314f0283e28c124; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 213ba5bd81b7e97ac6e6190b8f3bc6ba76123625; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 40a35d14f3c0dc72b689061ec72fc9b193f37d1f; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 27a39d006f85e869be68c1d5d2ce05e5d6445bf5; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 92527100be38ede924768f4277450dfe8a40e16b; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 6578717ebca91678131d2b1f4ba4258e60536e9f; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 7fa9706722882f634090bfc9af642bf9ed719e27; From 02e2a5bfebe99edcf9d694575a75032d53fe1b73 · fixed in 80e648042e512d5a767da251d44132553fe04ae0; From 3.2.75 · fixed in 3.3; From 3.4.113 · fixed in 3.5; From 3.10.99 · fixed in 3.11; From 3.12.56 · fixed in 3.13; From 3.14.63 · fixed in 3.15

  • Linux Linux

    4.4

  • KernelLinux

    From 4.4.0 · fixed in 5.4.291; From 5.5.0 · fixed in 5.10.235; From 5.11.0 · fixed in 5.15.179; From 5.16.0 · fixed in 6.1.129; From 6.2.0 · fixed in 6.6.79; From 6.7.0 · fixed in 6.12.16; From 6.13.0 · fixed in 6.13.4

References 8

git.kernel.org