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CVE-2026-89461— power: supply: max17040: synchronize work cancellation on suspend

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max17040_work()在每次轮询后重新排队且未同步取消，导致系统挂起与轮询回调发生竞争，可能继续访问电量计并在挂起后重新排队。

AI Predicted 5.0 Difficulty: Hard EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1079

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux c6f4a42de60b981dd210de01cd3e575835e3158e< 6bd453e328a0325f838c3bf64d4609c6c1866ed7 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< 7a9ec6707b545b2a0b35942c8b68d975cb901f77 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< dc946222e4b5bdb4e92bc3a5a5e8fc4ddac34ec0 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< 23783db5642a714f0547c5b5b0c9cdbb1be7b084 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< 5a863417fb9a1034ab1cfe4fa0de46ce1f95f3ec affected
c6f4a42de60b981dd210de01cd3e575835e3158e< aad7247bd35ad44af90a5e8974cdff614235b497 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< 36e6ce0f402f965328b27fd31ac793110e8a0c39 affected
c6f4a42de60b981dd210de01cd3e575835e3158e< 86a3a8a926aa5969c329d1df2d3259f189961bbc affected
… +10 more rows
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I. Basic Information for CVE-2026-89461

Vulnerability Information
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Vulnerability Title
power: supply: max17040: synchronize work cancellation on suspend
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: max17040: synchronize work cancellation on suspend max17040_work() requeues itself after every poll. cancel_delayed_work() only cancels a pending instance and does not wait for a callback that is already running. If system suspend races with the polling callback, the callback can continue accessing the fuel gauge and requeue itself after the suspend callback returns. Use cancel_delayed_work_sync() to ensure polling is quiesced before suspend completes.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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max17040_work()在每次轮询后重新排队且未同步取消，导致系统挂起与轮询回调发生竞争，可能继续访问电量计并在挂起后重新排队。
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 c6f4a42de60b981dd210de01cd3e575835e3158e ~ 6bd453e328a0325f838c3bf64d4609c6c1866ed7 -
Linux Linux 2.6.31 -

II. Public POCs for CVE-2026-89461

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III. Intelligence Information for CVE-2026-89461

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Patches & Fixes for CVE-2026-89461 (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-2026-89461

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