{"id":"CVE-2026-89993","state":"PUBLISHED","title":"dmaengine: dw-edma: Initialize IRQ data before requesting IRQs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Initialize IRQ data before requesting IRQs\n\ndw_edma_irq_request() passes struct dw_edma_irq to request_irq() before\ndw_edma_channel_setup() fills the back pointer. A shared interrupt can\ntherefore enter the handler with dw_irq->dw still NULL, leading to a\nNULL pointer dereference.\n\nSet the back pointer before installing each handler.","publishedAt":"2026-09-16T10:33:06.611Z","updatedAt":"2026-10-19T08:56:07.415Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"b86280b12ccf33b68b309b7cb0e4476894dfe77c","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"07e50cef557def076418c67051a336e4c6bd50e1","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"d232bc6cf4562132ef50644484dfd4b23a593295","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"fac202d73e7a649b7d4010325c6c6dcd9334fe65","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"d91fb6c0d10dad32929dc5c6850f89df34e1bfcd","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"647217abea849d3d45f8cb0b8ee5b78d50f26985","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/dw-edma/dw-edma-core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.3","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/dw-edma/dw-edma-core.c"]}],"references":["https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c","https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1","https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba","https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295","https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65","https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd","https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/89xxx/CVE-2026-89993.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89993","state":"PUBLISHED","datePublished":"2026-09-16T10:33:06.611Z","dateUpdated":"2026-10-19T08:56:07.415Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.780Z"},"containers":{"cna":{"title":"dmaengine: dw-edma: Initialize IRQ data before requesting IRQs","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: dw-edma: Initialize IRQ data before requesting IRQs\n\ndw_edma_irq_request() passes struct dw_edma_irq to request_irq() before\ndw_edma_channel_setup() fills the back pointer. A shared interrupt can\ntherefore enter the handler with dw_irq->dw still NULL, leading to a\nNULL pointer dereference.\n\nSet the back pointer before installing each handler."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"b86280b12ccf33b68b309b7cb0e4476894dfe77c","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"07e50cef557def076418c67051a336e4c6bd50e1","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"d232bc6cf4562132ef50644484dfd4b23a593295","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"fac202d73e7a649b7d4010325c6c6dcd9334fe65","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"d91fb6c0d10dad32929dc5c6850f89df34e1bfcd","versionType":"git"},{"version":"e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf","status":"affected","lessThan":"647217abea849d3d45f8cb0b8ee5b78d50f26985","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/dw-edma/dw-edma-core.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.3","versionType":"semver"},{"version":"5.15.221","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.188","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.51","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.5","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/dma/dw-edma/dw-edma-core.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c"},{"url":"https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1"},{"url":"https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba"},{"url":"https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295"},{"url":"https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65"},{"url":"https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd"},{"url":"https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:56:07.415Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}