Answer in brief
CVE-2026-46161 records a Unknown severity vulnerability in md/raid10: fix divide-by-zero in setup_geo() with zero far_copies. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=475901aff15841fb0a81e7546517407779a9b061 <0b43a70394ce492274e67463326be03e0a9897c5 || >=475901aff15841fb0a81e7546517407779a9b061 <c716ab3034f84f8a6c226814247b8c5ac9f95da1 || >=475901aff15841fb0a81e7546517407779a9b061 <553e32adfa1a96b217651139a3f8c3b92b9984ac || >=475901aff15841fb0a81e7546517407779a9b061 <4af2e558e6fdfb972c61350653fd55d1f62b60a5 || >=475901aff15841fb0a81e7546517407779a9b061 <9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda || >=475901aff15841fb0a81e7546517407779a9b061 <913d556e4bd1b56ed822815655b82c7bb54edc51 || >=475901aff15841fb0a81e7546517407779a9b061 <f9ddb621b2325eb69c95692958daf2bab4dea2c4 || >=475901aff15841fb0a81e7546517407779a9b061 <9aa6d860b0930e2f72795665c42c44252a558a0c | 0b43a70394ce492274e67463326be03e0a9897c5, c716ab3034f84f8a6c226814247b8c5ac9f95da1, 553e32adfa1a96b217651139a3f8c3b92b9984ac, 4af2e558e6fdfb972c61350653fd55d1f62b60a5, 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda, 913d556e4bd1b56ed822815655b82c7bb54edc51, f9ddb621b2325eb69c95692958daf2bab4dea2c4, 9aa6d860b0930e2f72795665c42c44252a558a0c |
| Linux/Linuxgeneric | 3.9 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <* | * |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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.
Quoted source text, attributed separately from HOL analysis.