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CVE-2026-89626— HID: sensor: custom: Fix field sysfs group cleanup on failure

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于hid_sensor_custom_add_attributes()函数在部分sysfs组创建成功后再创建失败时，未移除已创建的组，可能导致资源泄漏或拒绝服务。

CVSS 8.8 · High EPSS 0.35% · P27

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< 416194933af63bd58d03b7605b1ebc1711186838 affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< d0e15091e88d18e30b67daf85b88f6528bb9bf41 affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< 10b05fafff932e325896d59dde40938954ab4577 affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< 2409779f3096fcef41bcf57b5f4887d0fa0dc8dd affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< 79154fad98ee843e5363940841e2d831503c190a affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< f3f37b937a6ea2a00fb5e6189e74f855caa43eb5 affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< d96f8958d4469ac02d9c563686cdd968005b944d affected
4a7de0519df5e8fb89cef6ee062330ffe4b50a4d< 3789d0802ddb4b3be04062caf4bfadd23496e9a7 affected
… +10 more rows
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I. Basic Information for CVE-2026-89626

Vulnerability Information
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Vulnerability Title
HID: sensor: custom: Fix field sysfs group cleanup on failure
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: HID: sensor: custom: Fix field sysfs group cleanup on failure hid_sensor_custom_add_attributes() creates one sysfs group for each custom sensor field. If sysfs_create_group() fails after some groups have already been created, the function returns the error without removing the previously created groups. Add a local unwind path to remove the groups that were already created. With enable_sensor exposed only after the field attributes are ready, this path can free sensor_inst->fields without leaving enable_sensor able to access pointers into that array.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于hid_sensor_custom_add_attributes()函数在部分sysfs组创建成功后再创建失败时，未移除已创建的组，可能导致资源泄漏或拒绝服务。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 4a7de0519df5e8fb89cef6ee062330ffe4b50a4d ~ 416194933af63bd58d03b7605b1ebc1711186838 -
Linux Linux 4.1 -

II. Public POCs for CVE-2026-89626

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III. Intelligence Information for CVE-2026-89626

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Patches & Fixes for CVE-2026-89626 (8)

Same Patch Batch · Linux · 2026-09-11 · 431 CVEs total

CVE-2026-89688 9.8 CRITICAL nfsd: drop the stateid, not the stateowner, on seqid_op replay retry
CVE-2026-89656 9.8 CRITICAL libceph: reject buckets with mismatched CRUSH ids
CVE-2026-89655 9.8 CRITICAL ceph: fix UAF in __kick_flushing_caps() on cf entry freed during unlock
CVE-2026-89658 9.8 CRITICAL NFSD: Prevent client use-after-free during NFSv4.0 revoked-state cleanup
CVE-2026-89660 9.8 CRITICAL NFSD: Prevent client use-after-free during admin state revocation
CVE-2026-89659 9.8 CRITICAL NFSD: Prevent client use-after-free during delegation revoke
CVE-2026-89662 9.8 CRITICAL NFSD: Prevent lock owner use-after-free during client teardown
CVE-2026-89669 9.8 CRITICAL nfsd: initialize copy-notify stateid before publishing it
CVE-2026-89674 9.8 CRITICAL nfsd: fix XDR length calculation in nfsd4_ff_encode_layoutget
CVE-2026-89675 9.8 CRITICAL nfsd: fix UAF in async copy cancel and shutdown
CVE-2026-89676 9.8 CRITICAL nfsd: fix stale s2s_cp_stateids IDR entry for async COPY
CVE-2026-89677 9.8 CRITICAL nfsd: fix possible fh_compose of wrong dentry in nfsd4_create_file()
CVE-2026-89681 9.8 CRITICAL nfsd: fix layout fence worker double-reference race
CVE-2026-89686 9.8 CRITICAL nfsd: fix BUG_ON in nfsd4_alloc_layout_stateid on racing delegation revoke
CVE-2026-89703 9.8 CRITICAL nfsd: set SC_STATUS_FREED in nfsd4_drop_revoked_stid for delegations
CVE-2026-89479 9.8 CRITICAL sctp: stop processing a packet once its association is deleted
CVE-2026-89478 9.8 CRITICAL sctp: drop a chunk if its transport was removed
CVE-2026-89702 9.8 CRITICAL nfsd: size fh_verify server sockaddr slot by xpt_locallen
CVE-2026-89482 9.8 CRITICAL nvme-tcp: do not accept C2HData based on blk_rq_payload_bytes() alone
CVE-2026-89708 9.8 CRITICAL nfsd: RCU-protect cl_cb_session to fix use-after-free on session teardown

Showing top 20 of 431 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-89626

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