CVE-2026-46161— md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
Possible ATT&CK Techniques 1AI
T1564.008 · Email Hiding RulesAffected Version Matrix 18
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 475901aff15841fb0a81e7546517407779a9b061< 0b43a70394ce492274e67463326be03e0a9897c5 | affected |
475901aff15841fb0a81e7546517407779a9b061< c716ab3034f84f8a6c226814247b8c5ac9f95da1 | affected | ||
475901aff15841fb0a81e7546517407779a9b061< 553e32adfa1a96b217651139a3f8c3b92b9984ac | affected | ||
475901aff15841fb0a81e7546517407779a9b061< 4af2e558e6fdfb972c61350653fd55d1f62b60a5 | affected | ||
475901aff15841fb0a81e7546517407779a9b061< 9d8e03b9a2b1e8ce5c198bf3a409a629f4d02cda | affected | ||
475901aff15841fb0a81e7546517407779a9b061< 913d556e4bd1b56ed822815655b82c7bb54edc51 | affected | ||
475901aff15841fb0a81e7546517407779a9b061< f9ddb621b2325eb69c95692958daf2bab4dea2c4 | affected | ||
475901aff15841fb0a81e7546517407779a9b061< 9aa6d860b0930e2f72795665c42c44252a558a0c | affected | ||
| … +10 more rows | |||
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-46161
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
md/raid10: fix divide-by-zero in setup_geo() with zero far_copies
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于md raid10中setup_geo()函数未验证far_copies为零，可能导致除零错误。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-46161
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-46161
请登录查看更多情报信息。
Patches & Fixes for CVE-2026-46161 (7)
Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total
| CVE-2026-46195 | 9.8 CRITICAL | smb: client: validate dacloffset before building DACL pointers |
| CVE-2026-46137 | 9.8 CRITICAL | mptcp: pm: ADD_ADDR rtx: fix potential data-race |
| CVE-2026-46135 | 9.8 CRITICAL | nvmet-tcp: fix race between ICReq handling and queue teardown |
| CVE-2026-46115 | 9.8 CRITICAL | block: add pgmap check to biovec_phys_mergeable |
| CVE-2026-46185 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in symlink_data() |
| CVE-2026-46119 | 9.1 CRITICAL | libceph: Fix slab-out-of-bounds access in auth message processing |
| CVE-2026-46155 | 9.1 CRITICAL | smb/client: fix out-of-bounds read in smb2_compound_op() |
| CVE-2026-46125 | 8.8 HIGH | wifi: mac80211: remove station if connection prep fails |
| CVE-2026-46174 | 8.8 HIGH | x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache |
| CVE-2026-46198 | 8.8 HIGH | batman-adv: fix integer overflow on buff_pos |
| CVE-2026-46166 | 8.8 HIGH | wifi: mac80211: use safe list iteration in radar detect work |
| CVE-2026-46113 | 8.8 HIGH | KVM: x86: Fix shadow paging use-after-free due to unexpected GFN |
| CVE-2026-46152 | 8.8 HIGH | wifi: mac80211: drop stray 'static' from fast-RX rx_result |
| CVE-2026-46212 | 8.8 HIGH | batman-adv: bla: prevent use-after-free when deleting claims |
| CVE-2026-46238 | 8.8 HIGH | batman-adv: stop caching unowned originator pointers in BAT IV |
| CVE-2026-46138 | 8.1 HIGH | Bluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt |
| CVE-2026-46232 | 8.1 HIGH | HID: playstation: Clamp num_touch_reports |
| CVE-2026-46197 | 7.8 HIGH | drm/amdkfd: validate SVM ioctl nattr against buffer size |
| CVE-2026-46176 | 7.8 HIGH | RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() |
| CVE-2026-46145 | 7.8 HIGH | RDMA/mana: Validate rx_hash_key_len |
Showing top 20 of 138 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
Same vendor: Linux
- CVE-2026-46243
smb: client: reject userspace cifs.spnego descriptions - CVE-2026-46242
eventpoll: fix ep_remove struct eventpoll / struct file UAF - CVE-2026-46241
spi: mpc52xx: fix use-after-free on registration failure - CVE-2026-46239
media: i2c: ov5647: Fix runtime PM refcount leak in s_ctrl - CVE-2026-46240
media: iris: Fix use-after-free in iris_release_internal_buf
V. Comments for CVE-2026-46161
No comments yet