{"id":"CVE-2026-45869","state":"PUBLISHED","title":"power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()\n\nIn `probe()`, `request_irq()` is called before allocating/registering a\n`power_supply` handle. If an interrupt is fired between the call to\n`request_irq()` and `power_supply_register()`, the `power_supply` handle\nwill be used uninitialized in `power_supply_changed()` in\n`wm97xx_bat_update()` (triggered from the interrupt handler). This will\nlead to a `NULL` pointer dereference since\n\nFix this racy `NULL` pointer dereference by making sure the IRQ is\nrequested _after_ the registration of the `power_supply` handle. Since\nthe IRQ is the last thing requests in the `probe()` now, remove the\nerror path for freeing it. Instead add one for unregistering the\n`power_supply` handle when IRQ request fails.","publishedAt":"2026-05-27T12:15:49.107Z","updatedAt":"2026-05-27T12:15:49.107Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"3d7b5391bb95505b3581c1fb77150c467ab92864","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"438f9a303ea8b55162b2d5376490c2ab3ec165a0","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"9b7d77cb046b4487e8e511e04e62b6f416ce845c","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"86183153c299e8bb1839e717286d6c6f39508a59","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"93bdf715d33cf5ee01c58e8546c2469c71ce082a","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"c0def811ad8d642dca9b6d31a198cc39f5f90837","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"dfaf235d5a6b60cbf115a14a656946303ad007b7","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"39fe0eac6d755ef215026518985fcf8de9360e9e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/wm97xx_battery.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/wm97xx_battery.c"]}],"references":["https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864","https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0","https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c","https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59","https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a","https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837","https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7","https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45869.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45869","state":"PUBLISHED","datePublished":"2026-05-27T12:15:49.107Z","dateUpdated":"2026-05-27T12:15:49.107Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.080Z"},"containers":{"cna":{"title":"power: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\npower: supply: wm97xx: Fix NULL pointer dereference in power_supply_changed()\n\nIn `probe()`, `request_irq()` is called before allocating/registering a\n`power_supply` handle. If an interrupt is fired between the call to\n`request_irq()` and `power_supply_register()`, the `power_supply` handle\nwill be used uninitialized in `power_supply_changed()` in\n`wm97xx_bat_update()` (triggered from the interrupt handler). This will\nlead to a `NULL` pointer dereference since\n\nFix this racy `NULL` pointer dereference by making sure the IRQ is\nrequested _after_ the registration of the `power_supply` handle. Since\nthe IRQ is the last thing requests in the `probe()` now, remove the\nerror path for freeing it. Instead add one for unregistering the\n`power_supply` handle when IRQ request fails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"3d7b5391bb95505b3581c1fb77150c467ab92864","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"438f9a303ea8b55162b2d5376490c2ab3ec165a0","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"9b7d77cb046b4487e8e511e04e62b6f416ce845c","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"86183153c299e8bb1839e717286d6c6f39508a59","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"93bdf715d33cf5ee01c58e8546c2469c71ce082a","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"c0def811ad8d642dca9b6d31a198cc39f5f90837","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"dfaf235d5a6b60cbf115a14a656946303ad007b7","versionType":"git"},{"version":"7c87942aef52d2120e95ff1dec739998b9f95a78","status":"affected","lessThan":"39fe0eac6d755ef215026518985fcf8de9360e9e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/wm97xx_battery.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/power/supply/wm97xx_battery.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3d7b5391bb95505b3581c1fb77150c467ab92864"},{"url":"https://git.kernel.org/stable/c/438f9a303ea8b55162b2d5376490c2ab3ec165a0"},{"url":"https://git.kernel.org/stable/c/9b7d77cb046b4487e8e511e04e62b6f416ce845c"},{"url":"https://git.kernel.org/stable/c/86183153c299e8bb1839e717286d6c6f39508a59"},{"url":"https://git.kernel.org/stable/c/93bdf715d33cf5ee01c58e8546c2469c71ce082a"},{"url":"https://git.kernel.org/stable/c/c0def811ad8d642dca9b6d31a198cc39f5f90837"},{"url":"https://git.kernel.org/stable/c/dfaf235d5a6b60cbf115a14a656946303ad007b7"},{"url":"https://git.kernel.org/stable/c/39fe0eac6d755ef215026518985fcf8de9360e9e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-27T12:15:49.107Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}