{"id":"CVE-2026-89464","title":"power: supply: twl4030_charger: cancel workers via devm","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: twl4030_charger: cancel workers via devm\n\nbci is devm-allocated. Two workers (bci->work and bci->current_worker)\ndereference it. twl4030_bci_remove() dis…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-825"],"vendor":"Linux","product":"Linux","affected":["Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 9644c96ef8646c65d46caa5139a6631e29b79d6c","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < e9fffe10bd791082263c1678f2f6cdd6d7b487e0","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < c46c205bab0dfce4dd54aeb49da3f183e1fdfc63","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < a4460e89d4088cfec2da5be33e265ef1a8e780e9","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < b955da82db4170bdf1c784dc457287aa0c977378","Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 6eba34732524067da2aad5ddfdfbc641ded10e9e","Linux 2.6.39"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:47:13.492Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89464","references":[{"url":"https://git.kernel.org/stable/c/9644c96ef8646c65d46caa5139a6631e29b79d6c"},{"url":"https://git.kernel.org/stable/c/e9fffe10bd791082263c1678f2f6cdd6d7b487e0"},{"url":"https://git.kernel.org/stable/c/c46c205bab0dfce4dd54aeb49da3f183e1fdfc63"},{"url":"https://git.kernel.org/stable/c/72a2d6cd049f892853e4e2d8d8fc5e7d0244a458"},{"url":"https://git.kernel.org/stable/c/a4460e89d4088cfec2da5be33e265ef1a8e780e9"},{"url":"https://git.kernel.org/stable/c/b955da82db4170bdf1c784dc457287aa0c977378"},{"url":"https://git.kernel.org/stable/c/6eba34732524067da2aad5ddfdfbc641ded10e9e"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89464.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89464"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532107"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89464"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89464"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89464.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00173,"epssPercentile":0.06642,"ingestedAt":"2026-09-14T15:23:07.453Z","slug":"CVE-2026-89464","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: twl4030_charger: cancel workers via devm\n\nbci is devm-allocated. Two workers (bci->work and bci->current_worker)\ndereference it. twl4030_bci_remove() disables charging and masks\ninterrupts. It cancels neither worker. A worker pending at remove() can\nrun after devm frees bci.\n\nThe USB transceiver comes from devm_usb_get_phy_by_node(). devm\nunregisters its notifier only after remove() returns. A cancel_work_sync()\nin remove() can then race a notifier reschedule. devm_work_autocancel()\nand devm_delayed_work_autocancel() avoid that. They cancel the workers\nduring devm release, before bci is freed.\n\nThe current_worker is registered first, since devm will cancel in\nreverse order and bci->work can reschedule current_worker.\n\n[Move comment about order into the commit message]\n\n## Affected\n\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 9644c96ef8646c65d46caa5139a6631e29b79d6c`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < e9fffe10bd791082263c1678f2f6cdd6d7b487e0`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < c46c205bab0dfce4dd54aeb49da3f183e1fdfc63`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 72a2d6cd049f892853e4e2d8d8fc5e7d0244a458`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < a4460e89d4088cfec2da5be33e265ef1a8e780e9`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < b955da82db4170bdf1c784dc457287aa0c977378`\n- `Linux >= d6ccc442b12102414c1343f0adacaa8a1aaa516c < 6eba34732524067da2aad5ddfdfbc641ded10e9e`\n- `Linux 2.6.39`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89464.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":206990,"id":"CVE-2026-89464","ts":1789749735579,"field":"cvss","old":"4.4","new":"5.5"},{"seq":204107,"id":"CVE-2026-89464","ts":1789490231465,"field":"cvss","old":null,"new":"4.4"},{"seq":204106,"id":"CVE-2026-89464","ts":1789490231465,"field":"severity","old":"none","new":"medium"},{"seq":147808,"id":"CVE-2026-89464","ts":1789270212371,"field":"cvss","old":null,"new":"4.4"},{"seq":147807,"id":"CVE-2026-89464","ts":1789270212371,"field":"severity","old":"none","new":"medium"},{"seq":109570,"id":"CVE-2026-89464","ts":1789183732455,"field":"cvss","old":null,"new":"4.4"},{"seq":109569,"id":"CVE-2026-89464","ts":1789183732455,"field":"severity","old":"none","new":"medium"}]}