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CVE-2026-46150— fanotify: fix false positive on permission events

CVSS 7.1 · High EPSS 0.01% · P2

Possible ATT&CK Techniques 1AI

T1548 · Abuse Elevation Control Mechanism

Affected Version Matrix 18

VendorProductVersion RangeStatus
LinuxLinuxabc77577a669f424c5d0c185b9994f2621c52aa4< a24765332e129c1916d5a6615418b75599b8fcdcaffected
abc77577a669f424c5d0c185b9994f2621c52aa4< 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11affected
abc77577a669f424c5d0c185b9994f2621c52aa4< 04bb66be92f48ed13c3faf1139d892df228789bcaffected
abc77577a669f424c5d0c185b9994f2621c52aa4< 895ebbedf88318607c24acc0f591c74b165e1d0aaffected
abc77577a669f424c5d0c185b9994f2621c52aa4< f130790f1acc8399f32652846c875a251efd040faffected
abc77577a669f424c5d0c185b9994f2621c52aa4< 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678affected
abc77577a669f424c5d0c185b9994f2621c52aa4< b7b24b28c8cd55844cab908f4f39dded638d5538affected
abc77577a669f424c5d0c185b9994f2621c52aa4< 7746e3bd4cc19b5092e00d32d676e329bfcb6900affected
… +10 more rows
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I. Basic Information for CVE-2026-46150

Vulnerability Information
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Vulnerability Title
fanotify: fix false positive on permission events
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
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fanotify中fsnotify_get_mark_safe()可能对无关组返回假阳性，导致绕过权限检查。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux abc77577a669f424c5d0c185b9994f2621c52aa4 ~ a24765332e129c1916d5a6615418b75599b8fcdc -
LinuxLinux 4.12 -

II. Public POCs for CVE-2026-46150

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III. Intelligence Information for CVE-2026-46150

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Patches & Fixes for CVE-2026-46150 (8)

Same Patch Batch · Linux · 2026-05-28 · 138 CVEs total

CVE-2026-461959.8 CRITICALsmb: client: validate dacloffset before building DACL pointers
CVE-2026-461379.8 CRITICALmptcp: pm: ADD_ADDR rtx: fix potential data-race
CVE-2026-461359.8 CRITICALnvmet-tcp: fix race between ICReq handling and queue teardown
CVE-2026-461159.8 CRITICALblock: add pgmap check to biovec_phys_mergeable
CVE-2026-461859.1 CRITICALsmb/client: fix out-of-bounds read in symlink_data()
CVE-2026-461199.1 CRITICALlibceph: Fix slab-out-of-bounds access in auth message processing
CVE-2026-461559.1 CRITICALsmb/client: fix out-of-bounds read in smb2_compound_op()
CVE-2026-461258.8 HIGHwifi: mac80211: remove station if connection prep fails
CVE-2026-461748.8 HIGHx86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
CVE-2026-461988.8 HIGHbatman-adv: fix integer overflow on buff_pos
CVE-2026-461668.8 HIGHwifi: mac80211: use safe list iteration in radar detect work
CVE-2026-461138.8 HIGHKVM: x86: Fix shadow paging use-after-free due to unexpected GFN
CVE-2026-461528.8 HIGHwifi: mac80211: drop stray 'static' from fast-RX rx_result
CVE-2026-462128.8 HIGHbatman-adv: bla: prevent use-after-free when deleting claims
CVE-2026-462388.8 HIGHbatman-adv: stop caching unowned originator pointers in BAT IV
CVE-2026-461388.1 HIGHBluetooth: hci_event: Fix OOB read and infinite loop in hci_le_create_big_complete_evt
CVE-2026-462328.1 HIGHHID: playstation: Clamp num_touch_reports
CVE-2026-461977.8 HIGHdrm/amdkfd: validate SVM ioctl nattr against buffer size
CVE-2026-461767.8 HIGHRDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init()
CVE-2026-461457.8 HIGHRDMA/mana: Validate rx_hash_key_len

Showing top 20 of 138 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-46150

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