CVE-2026-99098dm-integrity: fix buffer overflow in inline mode with large tag size
- —Not scoredno CVSS score yet
- 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: dm-integrity: fix buffer overflow in inline mode with large tag size In inline mode, dm_integrity_check and dm_integrity_inline_recheck compute the checksum of each block into an on-stack buffer of HASH_MAX_DIGESTSIZE bytes. integrity_sector_checksum pads its result with zeroes up to the tag size, so if the tag size is larger than HASH_MAX_DIGESTSIZE, the padding runs past the end of the buffer. With CONFIG_STACKPROTECTOR the kernel panics in dm_integrity_check on the first read. Enlarge both buffers to hold MAX_TAG_SIZE bytes, as commit b93b6643e9b5 ("dm integrity: fix a crash with unusually large tag size") did for integrity_metadata. Note that this is not a security bug because the buffer overflow can only be triggered by root.
Timeline
ID reserved
By Linux
- 31 days later
· 31 days later
Published
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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.18% · top 92% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected fb0987682c629c1d2c476f35f6fde405a5e304a4 – < 3c7aad85aeb9e28386672e3a009aa2e61f751b86
- affected fb0987682c629c1d2c476f35f6fde405a5e304a4 – < 4f0ee735dc68e3e6c4dd9a666d7f7047163c4165
- affected fb0987682c629c1d2c476f35f6fde405a5e304a4 – < f49cd7820cd0a96f20e1aa2708adb002124e38a7
- affected fb0987682c629c1d2c476f35f6fde405a5e304a4 – < 764b683a6180fd72c931c13fea98d383506a3475
- affected 6.11
- unaffected < 6.11
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.57 – ≤ 6.18.*
- unaffected 7.2.11 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References4
- https://git.kernel.org/stable/c/3c7aad85aeb9e28386672e3a009aa2e61f751b86 (opens in a new tab)
- https://git.kernel.org/stable/c/4f0ee735dc68e3e6c4dd9a666d7f7047163c4165 (opens in a new tab)
- https://git.kernel.org/stable/c/f49cd7820cd0a96f20e1aa2708adb002124e38a7 (opens in a new tab)
- https://git.kernel.org/stable/c/764b683a6180fd72c931c13fea98d383506a3475 (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-2026-109904 (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-2026-99098)Record last updated .