{"id":"CVE-2026-72240","state":"PUBLISHED","title":"mfd: sm501: Fix reference leak on failed device registration","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: sm501: Fix reference leak on failed device registration\n\nWhen platform_device_register() fails in sm501_register_device(), the\nembedded struct device in pdev has already been initialized by\ndevice_initialize(), but the failure path only reports the error and\nreturns without dropping the device reference for the current platform\ndevice:\n\n  sm501_register_device()\n    -> platform_device_register(pdev)\n       -> device_initialize(&pdev->dev)\n       -> setup_pdev_dma_masks(pdev)\n       -> platform_device_add(pdev)\n\nThis leads to a reference leak when platform_device_register() fails.\nFix this by calling platform_device_put() before returning the error.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review.","publishedAt":"2026-08-15T05:54:28.905Z","updatedAt":"2026-08-17T05:10:58.219Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"e2dac91380a10e9e8d5883fb73ce9d9b390a629c","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"0baf9d43a7b7b43df2900bd8656e75b725028b6e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"a3e340d506c1036a747fb0972aebf1063f7ef30e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"760a1029692f1d788dc11aa636a3bf432e58b240","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"16a42c88c4667fa0bd944e438a667e059551f1f1","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"2ff8156fd500d54c61430b6834137fd0a07047ce","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"8c2f0b42fc252e1bf1c7746447091a468e784ca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mfd/sm501.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.21","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.21","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mfd/sm501.c"]}],"references":["https://git.kernel.org/stable/c/bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e","https://git.kernel.org/stable/c/e2dac91380a10e9e8d5883fb73ce9d9b390a629c","https://git.kernel.org/stable/c/0baf9d43a7b7b43df2900bd8656e75b725028b6e","https://git.kernel.org/stable/c/a3e340d506c1036a747fb0972aebf1063f7ef30e","https://git.kernel.org/stable/c/760a1029692f1d788dc11aa636a3bf432e58b240","https://git.kernel.org/stable/c/16a42c88c4667fa0bd944e438a667e059551f1f1","https://git.kernel.org/stable/c/2ff8156fd500d54c61430b6834137fd0a07047ce","https://git.kernel.org/stable/c/8c2f0b42fc252e1bf1c7746447091a468e784ca1"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72240.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72240","state":"PUBLISHED","datePublished":"2026-08-15T05:54:28.905Z","dateUpdated":"2026-08-17T05:10:58.219Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.914Z"},"containers":{"cna":{"title":"mfd: sm501: Fix reference leak on failed device registration","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmfd: sm501: Fix reference leak on failed device registration\n\nWhen platform_device_register() fails in sm501_register_device(), the\nembedded struct device in pdev has already been initialized by\ndevice_initialize(), but the failure path only reports the error and\nreturns without dropping the device reference for the current platform\ndevice:\n\n  sm501_register_device()\n    -> platform_device_register(pdev)\n       -> device_initialize(&pdev->dev)\n       -> setup_pdev_dma_masks(pdev)\n       -> platform_device_add(pdev)\n\nThis leads to a reference leak when platform_device_register() fails.\nFix this by calling platform_device_put() before returning the error.\n\nThe issue was identified by a static analysis tool I developed and\nconfirmed by manual review."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"e2dac91380a10e9e8d5883fb73ce9d9b390a629c","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"0baf9d43a7b7b43df2900bd8656e75b725028b6e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"a3e340d506c1036a747fb0972aebf1063f7ef30e","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"760a1029692f1d788dc11aa636a3bf432e58b240","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"16a42c88c4667fa0bd944e438a667e059551f1f1","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"2ff8156fd500d54c61430b6834137fd0a07047ce","versionType":"git"},{"version":"b6d6454fdb66f3829af8b92ab06825b6060fdf7e","status":"affected","lessThan":"8c2f0b42fc252e1bf1c7746447091a468e784ca1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mfd/sm501.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.21","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.21","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mfd/sm501.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/bbb1ecaed4ed7680e63d3a0f143f03de32de5d6e"},{"url":"https://git.kernel.org/stable/c/e2dac91380a10e9e8d5883fb73ce9d9b390a629c"},{"url":"https://git.kernel.org/stable/c/0baf9d43a7b7b43df2900bd8656e75b725028b6e"},{"url":"https://git.kernel.org/stable/c/a3e340d506c1036a747fb0972aebf1063f7ef30e"},{"url":"https://git.kernel.org/stable/c/760a1029692f1d788dc11aa636a3bf432e58b240"},{"url":"https://git.kernel.org/stable/c/16a42c88c4667fa0bd944e438a667e059551f1f1"},{"url":"https://git.kernel.org/stable/c/2ff8156fd500d54c61430b6834137fd0a07047ce"},{"url":"https://git.kernel.org/stable/c/8c2f0b42fc252e1bf1c7746447091a468e784ca1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:10:58.219Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.21","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}