{"id":"CVE-2026-72384","state":"PUBLISHED","title":"irqchip/ts4800: Fix missing chained handler cleanup on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/ts4800: Fix missing chained handler cleanup on remove\n\nThe driver installs a chained handler for the parent interrupt during probe\nusing irq_set_chained_handler_and_data(), but the remove function does not\nclear this handler. This leaves a dangling handler that may be called when\nthe parent interrupt fires after the driver has been removed, potentially\naccessing freed memory and causing a kernel crash.\n\nAdditionally, the parent_irq obtained via irq_of_parse_and_map() is not\nstored, making it inaccessible in the remove function. Moreover, interrupt\nmappings created during probe are not properly disposed.\n\nFix this by:\n\n   - Saving parent_irq in probe\n   - Clearing the chained handler with NULL in ts4800_ic_remove()\n   - Disposing all IRQ mappings before domain removal to prevent resource\n     leaks","publishedAt":"2026-08-15T05:56:15.410Z","updatedAt":"2026-08-17T05:13:37.396Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"e6b674dc341c6add7d85bec2ec22caf1aad35795","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"3f31f49afffa169cd01e6c37568c4df3eb1051af","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"4e8d498d32b6c67d73bb8b317ff316ff37897a3e","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"9ed0dca2aa05908b33ecf0bb15c7953947529542","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"98bf7e54cec07d514b3575c11896a8b12d50ecc4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/irqchip/irq-ts4800.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","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/irqchip/irq-ts4800.c"]}],"references":["https://git.kernel.org/stable/c/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c","https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795","https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af","https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e","https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542","https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72384.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72384","state":"PUBLISHED","datePublished":"2026-08-15T05:56:15.410Z","dateUpdated":"2026-08-17T05:13:37.396Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.923Z"},"containers":{"cna":{"title":"irqchip/ts4800: Fix missing chained handler cleanup on remove","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/ts4800: Fix missing chained handler cleanup on remove\n\nThe driver installs a chained handler for the parent interrupt during probe\nusing irq_set_chained_handler_and_data(), but the remove function does not\nclear this handler. This leaves a dangling handler that may be called when\nthe parent interrupt fires after the driver has been removed, potentially\naccessing freed memory and causing a kernel crash.\n\nAdditionally, the parent_irq obtained via irq_of_parse_and_map() is not\nstored, making it inaccessible in the remove function. Moreover, interrupt\nmappings created during probe are not properly disposed.\n\nFix this by:\n\n   - Saving parent_irq in probe\n   - Clearing the chained handler with NULL in ts4800_ic_remove()\n   - Disposing all IRQ mappings before domain removal to prevent resource\n     leaks"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"e6b674dc341c6add7d85bec2ec22caf1aad35795","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"3f31f49afffa169cd01e6c37568c4df3eb1051af","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"4e8d498d32b6c67d73bb8b317ff316ff37897a3e","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"9ed0dca2aa05908b33ecf0bb15c7953947529542","versionType":"git"},{"version":"d01f8633d52e4dac5ee598b87d49fd23346ccfd6","status":"affected","lessThan":"98bf7e54cec07d514b3575c11896a8b12d50ecc4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/irqchip/irq-ts4800.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.5","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.5","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/irqchip/irq-ts4800.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b5b2b2cb6a91908e6c23958c9ce6d5ba2fdb686c"},{"url":"https://git.kernel.org/stable/c/e6b674dc341c6add7d85bec2ec22caf1aad35795"},{"url":"https://git.kernel.org/stable/c/3f31f49afffa169cd01e6c37568c4df3eb1051af"},{"url":"https://git.kernel.org/stable/c/4e8d498d32b6c67d73bb8b317ff316ff37897a3e"},{"url":"https://git.kernel.org/stable/c/9ed0dca2aa05908b33ecf0bb15c7953947529542"},{"url":"https://git.kernel.org/stable/c/98bf7e54cec07d514b3575c11896a8b12d50ecc4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:13:37.396Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.5","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}