CVE-2026-72107dm era: fix out-of-bounds memory access for non-zero start sector
- 8.8HighCVSS base score
- 0.65%Exploitation in 30 daysEPSS · top 48% 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: dm era: fix out-of-bounds memory access for non-zero start sector dm-era tracks writes in target-relative blocks, but era_map() calculates the writeset block before applying the target offset. Tables with a non-zero start sector can therefore pass an absolute mapped-device block to metadata_current_marked(). If the absolute block is beyond the current writeset size, writeset_marked() tests past the end of the in-core bitset. KASAN reports this as a vmalloc-out-of-bounds access. Apply the target offset before calculating the era block so writeset lookups use the target-relative block number.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 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 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.65% · top 48% 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 8.8.
Affected products
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < 9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < 7e1822f83c5a1ee7b4a19e98edde8770a10b4c71
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < db5f9b4601f0012038e5a2628aedec2f47933380
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < 1fcb5e29dd7a5b85adb9d8b539911741d878e829
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6
- affected eec40579d84873dfb7021eb24c50360f073237c5 – < a868196f03c2b19418ae3d2b69e195d668a271e5
- affected 3.15
- unaffected < 3.15
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/fe94a0b14010a3c267ff9a2508afb4f27ff1c5bf (opens in a new tab)
- https://git.kernel.org/stable/c/e3ffa8e492e5cdee62d916ee3e9244ccce2b73c5 (opens in a new tab)
- https://git.kernel.org/stable/c/9946a7176bd8c25ddd6e5f1799c54e572ee6bf0f (opens in a new tab)
- https://git.kernel.org/stable/c/7e1822f83c5a1ee7b4a19e98edde8770a10b4c71 (opens in a new tab)
- https://git.kernel.org/stable/c/db5f9b4601f0012038e5a2628aedec2f47933380 (opens in a new tab)
- https://git.kernel.org/stable/c/1fcb5e29dd7a5b85adb9d8b539911741d878e829 (opens in a new tab)
- https://git.kernel.org/stable/c/bafe3e720cdac38cd7ea4eb7852a8f2dbe1bbfe6 (opens in a new tab)
- https://git.kernel.org/stable/c/a868196f03c2b19418ae3d2b69e195d668a271e5 (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-2026-59065 (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-2026-72107)Record last updated .