{"id":"CVE-2025-39771","state":"PUBLISHED","title":"regulator: pca9450: Use devm_register_sys_off_handler","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: pca9450: Use devm_register_sys_off_handler\n\nWith module test, there is error dump:\n------------[ cut here ]------------\n  notifier callback pca9450_i2c_restart_handler already registered\n  WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88,\n  CPU#0: kworker/u16:3/50\n  Call trace:\n  notifier_chain_register+0x5c/0x88 (P)\n  atomic_notifier_chain_register+0x30/0x58\n  register_restart_handler+0x1c/0x28\n  pca9450_i2c_probe+0x418/0x538\n  i2c_device_probe+0x220/0x3d0\n  really_probe+0x114/0x410\n  __driver_probe_device+0xa0/0x150\n  driver_probe_device+0x40/0x114\n  __device_attach_driver+0xd4/0x12c\n\nSo use devm_register_sys_off_handler to let kernel handle the resource\nfree to avoid kernel dump.","publishedAt":"2025-09-11T16:56:25.209Z","updatedAt":"2026-05-11T21:35:56.415Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6157e62b07d9331cc1d4d9d525dab33d45b0e83c","status":"affected","lessThan":"7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7","versionType":"git"},{"version":"6157e62b07d9331cc1d4d9d525dab33d45b0e83c","status":"affected","lessThan":"447be50598c05499f7ccc2b1f6ddb3da30f8099a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/pca9450-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.4","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/pca9450-regulator.c"]}],"references":["https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7","https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39771.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39771","state":"PUBLISHED","datePublished":"2025-09-11T16:56:25.209Z","dateUpdated":"2026-05-11T21:35:56.415Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.128Z"},"containers":{"cna":{"title":"regulator: pca9450: Use devm_register_sys_off_handler","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: pca9450: Use devm_register_sys_off_handler\n\nWith module test, there is error dump:\n------------[ cut here ]------------\n  notifier callback pca9450_i2c_restart_handler already registered\n  WARNING: kernel/notifier.c:23 at notifier_chain_register+0x5c/0x88,\n  CPU#0: kworker/u16:3/50\n  Call trace:\n  notifier_chain_register+0x5c/0x88 (P)\n  atomic_notifier_chain_register+0x30/0x58\n  register_restart_handler+0x1c/0x28\n  pca9450_i2c_probe+0x418/0x538\n  i2c_device_probe+0x220/0x3d0\n  really_probe+0x114/0x410\n  __driver_probe_device+0xa0/0x150\n  driver_probe_device+0x40/0x114\n  __device_attach_driver+0xd4/0x12c\n\nSo use devm_register_sys_off_handler to let kernel handle the resource\nfree to avoid kernel dump."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6157e62b07d9331cc1d4d9d525dab33d45b0e83c","status":"affected","lessThan":"7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7","versionType":"git"},{"version":"6157e62b07d9331cc1d4d9d525dab33d45b0e83c","status":"affected","lessThan":"447be50598c05499f7ccc2b1f6ddb3da30f8099a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/pca9450-regulator.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.16","versionType":"semver"},{"version":"6.16.4","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/regulator/pca9450-regulator.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7a8c8aa0b0b2c62a0232bf868def85f3069ba7a7"},{"url":"https://git.kernel.org/stable/c/447be50598c05499f7ccc2b1f6ddb3da30f8099a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:35:56.415Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.16.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}