Medium severity5.5NVD Advisory· Published May 28, 2026· Updated Jun 17, 2026
CVE-2026-46161
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
26cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 10 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=3.9.1,<5.10.258
- cpe:2.3:o:linux:linux_kernel:3.9:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc5:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc6:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc7:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:3.9:rc8:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
- (no CPE)
- osv-coords15 versionspkg:linux/kernelpkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2016.0
>= 3.9.0, < 5.10.258+ 14 more
- (no CPE)range: >= 3.9.0, < 5.10.258
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1.160000.2.17
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 7.0.11-1.1
- (no CPE)range: < 6.12.0-160000.36.1
- (no CPE)range: < 6.12.0-160000.36.1
Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/0b43a70394ce492274e67463326be03e0a9897c5nvdPatch
- git.kernel.org/stable/c/4af2e558e6fdfb972c61350653fd55d1f62b60a5nvdPatch
- git.kernel.org/stable/c/553e32adfa1a96b217651139a3f8c3b92b9984acnvdPatch
- git.kernel.org/stable/c/913d556e4bd1b56ed822815655b82c7bb54edc51nvdPatch
- git.kernel.org/stable/c/9aa6d860b0930e2f72795665c42c44252a558a0cnvdPatch
- git.kernel.org/stable/c/9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cdanvdPatch
- git.kernel.org/stable/c/c716ab3034f84f8a6c226814247b8c5ac9f95da1nvdPatch
- git.kernel.org/stable/c/f9ddb621b2325eb69c95692958daf2bab4dea2c4nvdPatch
News mentions
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