{"id":"CVE-2026-89468","title":"power: supply: lp8788-charger: fix use-after-free on remove","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: lp8788-charger: fix use-after-free on remove\n\nlp8788_charger_remove() flushes charger_work before unregistering the\nIRQs. An IRQ thread can queue charger…","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-364"],"vendor":"Linux","product":"Linux","affected":["Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 4e3d3923976a986cc3cf960d13f1264cea8a9bba","Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 88d8eadfad5d9ff967e74090152940bcfa27df69","Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < b3aa1e9509e1b0a863353356d617fb45d1b6250a","Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < b4eb6a056b441ba0caedfbfc42cec501acf12f67","Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 831c29a12d560f8a3225f43050b3fbb5dfd79c66","Linux 3.7"],"published":"2026-09-11","updated":"2026-10-21","sourceUpdated":"2026-10-21T12:47:33.974Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89468","references":[{"url":"https://git.kernel.org/stable/c/4e3d3923976a986cc3cf960d13f1264cea8a9bba"},{"url":"https://git.kernel.org/stable/c/88d8eadfad5d9ff967e74090152940bcfa27df69"},{"url":"https://git.kernel.org/stable/c/b3aa1e9509e1b0a863353356d617fb45d1b6250a"},{"url":"https://git.kernel.org/stable/c/b4eb6a056b441ba0caedfbfc42cec501acf12f67"},{"url":"https://git.kernel.org/stable/c/831c29a12d560f8a3225f43050b3fbb5dfd79c66"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89468.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89468"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532357"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89468"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89468"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89468.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00168,"epssPercentile":0.06159,"ingestedAt":"2026-09-14T00:35:28.530Z","slug":"CVE-2026-89468","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: lp8788-charger: fix use-after-free on remove\n\nlp8788_charger_remove() flushes charger_work before unregistering the\nIRQs. An IRQ thread can queue charger_work after flush_work() has\nreturned. The work can then run after devres frees pchg and dereference\nit in lp8788_charger_event().\n\nUnregister the IRQs first. free_irq() waits for any running threaded\nhandler, so no handler can queue more work afterwards. Then use\ncancel_work_sync() to cancel pending work or wait for running work to\nfinish.\n\nThis issue was found by an in-house static analysis tool.\n\n## Affected\n\n- `Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 4e3d3923976a986cc3cf960d13f1264cea8a9bba`\n- `Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 88d8eadfad5d9ff967e74090152940bcfa27df69`\n- `Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < b3aa1e9509e1b0a863353356d617fb45d1b6250a`\n- `Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < b4eb6a056b441ba0caedfbfc42cec501acf12f67`\n- `Linux >= 98a2766493589c18c327ae3dad5243b53fcb5f70 < 831c29a12d560f8a3225f43050b3fbb5dfd79c66`\n- `Linux 3.7`\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 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89468.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":205491,"id":"CVE-2026-89468","ts":1789576721921,"field":"cvss","old":"4.1","new":"5.5"},{"seq":203996,"id":"CVE-2026-89468","ts":1789490230970,"field":"cvss","old":null,"new":"4.1"},{"seq":203995,"id":"CVE-2026-89468","ts":1789490230970,"field":"severity","old":"none","new":"medium"},{"seq":147333,"id":"CVE-2026-89468","ts":1789270210494,"field":"cvss","old":null,"new":"4.1"},{"seq":147332,"id":"CVE-2026-89468","ts":1789270210494,"field":"severity","old":"none","new":"medium"},{"seq":109086,"id":"CVE-2026-89468","ts":1789183730251,"field":"cvss","old":null,"new":"4.1"},{"seq":109085,"id":"CVE-2026-89468","ts":1789183730251,"field":"severity","old":"none","new":"medium"}]}