CVE-2025-38451md/md-bitmap: fix GPF in bitmap_get_stats()
- 5.5MediumCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 92% 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: md/md-bitmap: fix GPF in bitmap_get_stats() The commit message of commit 6ec1f0239485 ("md/md-bitmap: fix stats collection for external bitmaps") states: Remove the external bitmap check as the statistics should be available regardless of bitmap storage location. Return -EINVAL only for invalid bitmap with no storage (neither in superblock nor in external file). But, the code does not adhere to the above, as it does only check for a valid super-block for "internal" bitmaps. Hence, we observe: Oops: GPF, probably for non-canonical address 0x1cd66f1f40000028 RIP: 0010:bitmap_get_stats+0x45/0xd0 Call Trace: seq_read_iter+0x2b9/0x46a seq_read+0x12f/0x180 proc_reg_read+0x57/0xb0 vfs_read+0xf6/0x380 ksys_read+0x6d/0xf0 do_syscall_64+0x8c/0x1b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e We fix this by checking the existence of a super-block for both the internal and external case.
Timeline
ID reserved
By Linux
- 3 months later
· 3 months later
Published
- 15 months later
· 15 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 |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 065f4b1cd41d03702426af44193894b925607073 – < a23b16ba3274961494f5ad236345d238364349ff
- affected 0b5390aeaa85eb2f15e0e2ea0731c0995285db5e – < 3d82a729530bd2110ba66e4a1f73461c776edec2
- affected eeeba7f43ae27835718a5f5ad6552a8983e75201 – < 3e0542701b37aa25b025d8531583458e4f014c2e
- affected 6ec1f0239485028445d213d91cfee5242f3211ba – < a18f9b08c70e10ea3a897058fee8a4f3b4c146ec
- affected 6ec1f0239485028445d213d91cfee5242f3211ba – < c17fb542dbd1db745c9feac15617056506dd7195
- affected 896a6fbefc9050cf940ed57947eda6dc23aa58b0
- affected 6.1.135 – < 6.1.146
- affected 6.6.88 – < 6.6.99
- affected 6.12.25 – < 6.12.39
- affected 6.14.4 – < 6.15
- affected 6.15
- unaffected < 6.15
- unaffected 6.1.146 – ≤ 6.1.*
- unaffected 6.6.99 – ≤ 6.6.*
- unaffected 6.12.39 – ≤ 6.12.*
- unaffected 6.15.7 – ≤ 6.15.*
- unaffected 6.16 – ≤ *
References
References7
- https://git.kernel.org/stable/c/a23b16ba3274961494f5ad236345d238364349ff (opens in a new tab)
- https://git.kernel.org/stable/c/3d82a729530bd2110ba66e4a1f73461c776edec2 (opens in a new tab)
- https://git.kernel.org/stable/c/3e0542701b37aa25b025d8531583458e4f014c2e (opens in a new tab)
- https://git.kernel.org/stable/c/a18f9b08c70e10ea3a897058fee8a4f3b4c146ec (opens in a new tab)
- https://git.kernel.org/stable/c/c17fb542dbd1db745c9feac15617056506dd7195 (opens in a new tab)
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html (opens in a new tab)
- https://cert-portal.siemens.com/productcert/html/ssa-082556.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-2025-22690 (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-2025-38451)Record last updated .