dm-ioctl: fix a possible overflow in list_version_get_info
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 5 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: dm-ioctl: fix a possible overflow in list_version_get_info sizeof(tt->version) is 12 bytes, but the code writes 16 bytes into the output buffer - info->vers->version[0], info->vers->version[1], info->vers->version[2] and info->vers->next. This can cause buffer overflow. Fix this buffer overflow by replacing "sizeof(tt->version)" with "sizeof(struct dm_target_versions)".
Why it matters now
EPSS 0.00229 13th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.145, 6.12.97 +3Red Hat: 5 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.145, 6.12.97, 6.18.40, 7.1.5, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Timeline
- 2026-10-02 Threatist record created from CVE-2026-72106
- 2026-10-03 Alias added: GHSA-cmm5-39xx-c83c
- 2026-10-30 Fix available: Linux/Linux@3cba74d3fb2c1890ffae019301227d1366f74907, Linux/[email protected] · CNA
- 2026-10-30 1 new reference · CNA
References
Other 6
- https://git.kernel.org/stable/c/3cba74d3fb2c1890ffae019301227d1366f74907
- https://git.kernel.org/stable/c/29536a9ff146d9bbd618959857ed2e691cda1d21
- https://git.kernel.org/stable/c/e0f5842c4e2a7dbefb52a2dc6711789bc6963e55
- https://git.kernel.org/stable/c/d61c12573ed9768690fdcb2bc38846a1bcb01358
- https://git.kernel.org/stable/c/df50c24c6447c18886ed126d3d81cc7e155ea8b6
- https://git.kernel.org/stable/c/76c6f845dc0c614304a6e6ee619b552f97cf24b3
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Sources
- CVE-2026-72106 · CVE Program
- CVE-2026-72106 · NVD
- FIRST EPSS
- GHSA-cmm5-39xx-c83c · GitHub Advisory Database · CC BY 4.0
- CVE-2026-72106 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences