CVE-2025-21772partitions: mac: fix handling of bogus partition table
- 7.8HighCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 84% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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().
Timeline
ID reserved
By Linux
- 2 months later
· 2 months later
Published
- 20 months later
· 20 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 84% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < a3e77da9f843e4ab93917d30c314f0283e28c124
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 213ba5bd81b7e97ac6e6190b8f3bc6ba76123625
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 40a35d14f3c0dc72b689061ec72fc9b193f37d1f
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 27a39d006f85e869be68c1d5d2ce05e5d6445bf5
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 92527100be38ede924768f4277450dfe8a40e16b
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 6578717ebca91678131d2b1f4ba4258e60536e9f
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 7fa9706722882f634090bfc9af642bf9ed719e27
- affected 02e2a5bfebe99edcf9d694575a75032d53fe1b73 – < 80e648042e512d5a767da251d44132553fe04ae0
- affected 81a319c5c29913a23947f3d28513974682f3af03
- affected 34a906cd9f6445d9510841667eff0d980279ebf3
- affected 2a27f61bd411e564eb4651c18d225f6e9e1de534
- affected 69aad7e01c8e883e9d2f8dc5523bd419bd02d2aa
- affected 7f4f03c4a1e9a4b9679feafe7625a780864a4e76
- affected 3.2.75 – < 3.3
- affected 3.4.113 – < 3.5
- affected 3.10.99 – < 3.11
- affected 3.12.56 – < 3.13
- affected 3.14.63 – < 3.15
- affected 4.4
- unaffected < 4.4
- unaffected 5.4.291 – ≤ 5.4.*
- unaffected 5.10.235 – ≤ 5.10.*
- unaffected 5.15.179 – ≤ 5.15.*
- unaffected 6.1.129 – ≤ 6.1.*
- unaffected 6.6.79 – ≤ 6.6.*
- unaffected 6.12.16 – ≤ 6.12.*
- unaffected 6.13.4 – ≤ 6.13.*
- unaffected 6.14 – ≤ *
References
References11
- https://git.kernel.org/stable/c/a3e77da9f843e4ab93917d30c314f0283e28c124 (opens in a new tab)
- https://git.kernel.org/stable/c/213ba5bd81b7e97ac6e6190b8f3bc6ba76123625 (opens in a new tab)
- https://git.kernel.org/stable/c/40a35d14f3c0dc72b689061ec72fc9b193f37d1f (opens in a new tab)
- https://git.kernel.org/stable/c/27a39d006f85e869be68c1d5d2ce05e5d6445bf5 (opens in a new tab)
- https://git.kernel.org/stable/c/92527100be38ede924768f4277450dfe8a40e16b (opens in a new tab)
- https://git.kernel.org/stable/c/6578717ebca91678131d2b1f4ba4258e60536e9f (opens in a new tab)
- https://git.kernel.org/stable/c/7fa9706722882f634090bfc9af642bf9ed719e27 (opens in a new tab)
- https://git.kernel.org/stable/c/80e648042e512d5a767da251d44132553fe04ae0 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-5153 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-21772)Record last updated .