CVE-2026-46161
Description
In the Linux kernel, the following vulnerability has been resolved: md/raid10: fix divide-by-zero in setup_geo() with zero far_copies setup_geo() extracts near_copies (nc) and far_copies (fc) from the user-provided layout parameter without checking for zero. When fc=0 with the "improved" far set layout selected, 'geo->far_set_size = disks / fc' triggers a divide-by-zero. Validate nc and fc immediately after extraction, returning -1 if either is zero.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Windows Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.88-1 |
| sid | Fixed | 7.0.7-1 |
| forky | Fixed | 7.0.7-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
References
- https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5
- https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51
- https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c
- https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda
- https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4
- https://security-tracker.debian.org/tracker/CVE-2026-46161
- https://www.suse.com/security/cve/CVE-2026-46161.html
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-46161
- https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5
- https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac
- https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.