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CVE-2026-81017— platform/chrome: sensorhub: Bound the EC-reported sensor number

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cros_ec_sensorhub_ring_handler()未验证EC报告的传感器编号，导致cros_ec_sensor_ring_process_event()使用未经检查的传感器编号索引batch_state[]数组，可能造成越界读取和写入。

CVSS 8.4 · High EPSS 0.18% · P8

Possible ATT&CK Techniques 1 AI

T1201.003

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 145d59baff5944b71551ac518d7fd7d377a9c820< 3a76b87e1d065183e2e7ae5b800cb1f6e84f543d affected
145d59baff5944b71551ac518d7fd7d377a9c820< 2b602ecf6193ecb9720c78b6728d7e09370b1ff1 affected
145d59baff5944b71551ac518d7fd7d377a9c820< 324880f94ba3c6269a607e04f78a4dd4a66b3f53 affected
145d59baff5944b71551ac518d7fd7d377a9c820< d1b4add68dabfdd6481a4fa198bf3b473d2634d7 affected
145d59baff5944b71551ac518d7fd7d377a9c820< 3d2636dce0a8fe9eecad29010699847be425dc80 affected
145d59baff5944b71551ac518d7fd7d377a9c820< 5eaf7faa99578ae090030d1e2e6ea3b37a615496 affected
145d59baff5944b71551ac518d7fd7d377a9c820< 4d9bf63ed74f859c6698bc01d8fb216ef9253867 affected
145d59baff5944b71551ac518d7fd7d377a9c820< 833740a2333c2e4db4e02e3d0ffba04e8718a5f3 affected
… +10 more rows
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I. Basic Information for CVE-2026-81017

Vulnerability Information
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Vulnerability Title
platform/chrome: sensorhub: Bound the EC-reported sensor number
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: platform/chrome: sensorhub: Bound the EC-reported sensor number Each EC FIFO event carries an 8-bit sensor number (in->sensor_num). cros_ec_sensorhub_ring_handler() validates the FIFO event count, the per-read count and the ring bound, but not the sensor number, which cros_ec_sensor_ring_process_event() then uses unchecked to index sensorhub->batch_state[] - allocated with only sensorhub->sensor_num entries. A sensor number of sensor_num or larger is an out-of-bounds read and write of batch_state[]. Validate the sensor number in the ring handler, where each event is read from the EC, and drop a malformed event before it is used.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/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cros_ec_sensorhub_ring_handler()未验证EC报告的传感器编号，导致cros_ec_sensor_ring_process_event()使用未经检查的传感器编号索引batch_state[]数组，可能造成越界读取和写入。
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 145d59baff5944b71551ac518d7fd7d377a9c820 ~ 3a76b87e1d065183e2e7ae5b800cb1f6e84f543d -
Linux Linux 5.7 -

II. Public POCs for CVE-2026-81017

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III. Intelligence Information for CVE-2026-81017

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Patches & Fixes for CVE-2026-81017 (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-2026-89478 9.8 CRITICAL sctp: drop a chunk if its transport was removed
CVE-2026-89479 9.8 CRITICAL sctp: stop processing a packet once its association is deleted
CVE-2026-89702 9.8 CRITICAL nfsd: size fh_verify server sockaddr slot by xpt_locallen
CVE-2026-89703 9.8 CRITICAL nfsd: set SC_STATUS_FREED in nfsd4_drop_revoked_stid for delegations
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-2026-81017

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