{"id":"CVE-2026-89462","summary":"power: supply: max17040: propagate register read errors","details":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: max17040: propagate register read errors\n\nmax17040_get_vcell() and max17040_get_soc() ignore errors returned by\nregmap_read().  When an I2C transfer fails, the uninitialized register\nvalue is converted and reported to userspace as a valid voltage or state\nof charge.  The polling worker can also replace the cached state of charge\nwith the bogus value and emit a spurious change event.\n\nPropagate read errors through the power supply get_property callback and\nkeep the last valid cached state of charge when polling fails.","modified":"2026-09-13T03:47:18.186877805Z","published":"2026-09-11T19:43:23.984Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89462.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/13fb0477da9b400071b9d518b24d6434c4965263"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2943a0edd4865ed744702ada647921c3981207f6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/659cc3d8d5ef246263873fce72c8cadeeed073cc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c7aa4c3708cc0d8487336f8281665eaea87130f6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89462.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89462"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c6f4a42de60b981dd210de01cd3e575835e3158e"},{"fixed":"2943a0edd4865ed744702ada647921c3981207f6"},{"fixed":"13fb0477da9b400071b9d518b24d6434c4965263"},{"fixed":"c7aa4c3708cc0d8487336f8281665eaea87130f6"},{"fixed":"659cc3d8d5ef246263873fce72c8cadeeed073cc"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89462.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.31"},{"fixed":"6.12.109"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.50"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89462.json"}}],"schema_version":"1.9.0"}