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CVE-2026-89464— power: supply: twl4030_charger: cancel workers via devm

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 2.6.39版本存在安全漏洞，该漏洞源于twl4030_charger驱动在移除时未取消工作队列，而bci由devm分配，可能导致devm释放bci后工作队列仍在运行，造成释放后重用。

AI Predicted 6.5 Difficulty: Hard EPSS 0.17% · P6

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux d6ccc442b12102414c1343f0adacaa8a1aaa516c< 9644c96ef8646c65d46caa5139a6631e29b79d6c affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< e9fffe10bd791082263c1678f2f6cdd6d7b487e0 affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< c46c205bab0dfce4dd54aeb49da3f183e1fdfc63 affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458 affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< a4460e89d4088cfec2da5be33e265ef1a8e780e9 affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< b955da82db4170bdf1c784dc457287aa0c977378 affected
d6ccc442b12102414c1343f0adacaa8a1aaa516c< 6eba34732524067da2aad5ddfdfbc641ded10e9e affected
2.6.39 affected
… +8 more rows
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I. Basic Information for CVE-2026-89464

Vulnerability Information
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Vulnerability Title
power: supply: twl4030_charger: cancel workers via devm
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: power: supply: twl4030_charger: cancel workers via devm bci is devm-allocated. Two workers (bci->work and bci->current_worker) dereference it. twl4030_bci_remove() disables charging and masks interrupts. It cancels neither worker. A worker pending at remove() can run after devm frees bci. The USB transceiver comes from devm_usb_get_phy_by_node(). devm unregisters its notifier only after remove() returns. A cancel_work_sync() in remove() can then race a notifier reschedule. devm_work_autocancel() and devm_delayed_work_autocancel() avoid that. They cancel the workers during devm release, before bci is freed. The current_worker is registered first, since devm will cancel in reverse order and bci->work can reschedule current_worker. [Move comment about order into the commit message]
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 2.6.39版本存在安全漏洞，该漏洞源于twl4030_charger驱动在移除时未取消工作队列，而bci由devm分配，可能导致devm释放bci后工作队列仍在运行，造成释放后重用。
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 d6ccc442b12102414c1343f0adacaa8a1aaa516c ~ 9644c96ef8646c65d46caa5139a6631e29b79d6c -
Linux Linux 2.6.39 -

II. Public POCs for CVE-2026-89464

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III. Intelligence Information for CVE-2026-89464

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Patches & Fixes for CVE-2026-89464 (6)

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-2026-89464

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