CVE-2026-46161
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 0b43a70394ce492274e67463326be03e0a9897c5 | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < c716ab3034f84f8a6c226814247b8c5ac9f95da1 | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 553e32adfa1a96b217651139a3f8c3b92b9984ac | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 4af2e558e6fdfb972c61350653fd55d1f62b60a5 | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 913d556e4bd1b56ed822815655b82c7bb54edc51 | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < f9ddb621b2325eb69c95692958daf2bab4dea2c4 | affected |
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061 < 9aa6d860b0930e2f72795665c42c44252a558a0c | affected |
| Linux | Linux | 3.9 | affected |
| Linux | Linux | 0 < 3.9 | unaffected |
| Linux | Linux | 5.10.258 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.209 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.175 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.140 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.88 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.30 <= 6.18.* | unaffected |
| Linux | Linux | 7.0.7 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5
- https://git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1
- https://git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984ac
- https://git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5
- https://git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda
- https://git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51
- https://git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4
- https://git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0c
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