{"id":"CVE-2026-98210","state":"PUBLISHED","title":"mmc: mxcmmc: cancel data work and watchdog on remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mxcmmc: cancel data work and watchdog on remove\n\nmxcmci_remove() frees the host through the devm tail, but neither it nor\nmmc_remove_host() drains the driver's own asynchronous state.\nhost->watchdog, a 10 s timer armed on the DMA path in mxcmci_setup_data(),\nis deleted only by the DMA- and IRQ-complete paths, which the remove path\ndoes not explicitly drain; it can therefore fire after the host is freed\nand dereference it in mxcmci_watchdog().  host->datawork, armed from the\nIRQ handler on the PIO path, is not cancelled by the remove path either.\n\nFree the devm-registered IRQ, then cancel datawork and delete the watchdog\nin mxcmci_remove(), before dma_release_channel().  Freeing the IRQ first\nkeeps a trailing handler from re-arming datawork between the cancel and\nthe host free.  Both callbacks are non-self-rearming.\n\nThis issue was found by an in-house static analysis tool.","publishedAt":"2026-10-06T08:44:46.788Z","updatedAt":"2026-10-19T09:15:41.186Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"740f595f8ad678cb4d79f13edd12851df2492bdd","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"d3641afe6ee76d852834a34ef0669eefced32752","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"314966b490323bdcfd3162a1398b00e587e0ced4","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"ae10838a7cdf0e54caa9d0a4f488704fd04e7f01","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"a1ff367e0dc961d73707add508a95df5c3509bd1","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"23383e0578b58ba2dc0730cf9f7806bd66bf859a","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"e2948c4232209e87c861a680f20f1e3cf8a57fec","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"d3a421c82412344022982d5b91ba23194a0a6f29","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/mxcmmc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.7","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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/mmc/host/mxcmmc.c"]}],"references":["https://git.kernel.org/stable/c/740f595f8ad678cb4d79f13edd12851df2492bdd","https://git.kernel.org/stable/c/d3641afe6ee76d852834a34ef0669eefced32752","https://git.kernel.org/stable/c/314966b490323bdcfd3162a1398b00e587e0ced4","https://git.kernel.org/stable/c/ae10838a7cdf0e54caa9d0a4f488704fd04e7f01","https://git.kernel.org/stable/c/a1ff367e0dc961d73707add508a95df5c3509bd1","https://git.kernel.org/stable/c/23383e0578b58ba2dc0730cf9f7806bd66bf859a","https://git.kernel.org/stable/c/e2948c4232209e87c861a680f20f1e3cf8a57fec","https://git.kernel.org/stable/c/d3a421c82412344022982d5b91ba23194a0a6f29"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98210.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98210","state":"PUBLISHED","datePublished":"2026-10-06T08:44:46.788Z","dateUpdated":"2026-10-19T09:15:41.186Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.325Z"},"containers":{"cna":{"title":"mmc: mxcmmc: cancel data work and watchdog on remove","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: mxcmmc: cancel data work and watchdog on remove\n\nmxcmci_remove() frees the host through the devm tail, but neither it nor\nmmc_remove_host() drains the driver's own asynchronous state.\nhost->watchdog, a 10 s timer armed on the DMA path in mxcmci_setup_data(),\nis deleted only by the DMA- and IRQ-complete paths, which the remove path\ndoes not explicitly drain; it can therefore fire after the host is freed\nand dereference it in mxcmci_watchdog().  host->datawork, armed from the\nIRQ handler on the PIO path, is not cancelled by the remove path either.\n\nFree the devm-registered IRQ, then cancel datawork and delete the watchdog\nin mxcmci_remove(), before dma_release_channel().  Freeing the IRQ first\nkeeps a trailing handler from re-arming datawork between the cancel and\nthe host free.  Both callbacks are non-self-rearming.\n\nThis issue was found by an in-house static analysis tool."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"740f595f8ad678cb4d79f13edd12851df2492bdd","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"d3641afe6ee76d852834a34ef0669eefced32752","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"314966b490323bdcfd3162a1398b00e587e0ced4","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"ae10838a7cdf0e54caa9d0a4f488704fd04e7f01","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"a1ff367e0dc961d73707add508a95df5c3509bd1","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"23383e0578b58ba2dc0730cf9f7806bd66bf859a","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"e2948c4232209e87c861a680f20f1e3cf8a57fec","versionType":"git"},{"version":"f6ad0a481342223b2e7ae9f55b154e14f1391ada","status":"affected","lessThan":"d3a421c82412344022982d5b91ba23194a0a6f29","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/mxcmmc.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.7","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.7","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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/mmc/host/mxcmmc.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/740f595f8ad678cb4d79f13edd12851df2492bdd"},{"url":"https://git.kernel.org/stable/c/d3641afe6ee76d852834a34ef0669eefced32752"},{"url":"https://git.kernel.org/stable/c/314966b490323bdcfd3162a1398b00e587e0ced4"},{"url":"https://git.kernel.org/stable/c/ae10838a7cdf0e54caa9d0a4f488704fd04e7f01"},{"url":"https://git.kernel.org/stable/c/a1ff367e0dc961d73707add508a95df5c3509bd1"},{"url":"https://git.kernel.org/stable/c/23383e0578b58ba2dc0730cf9f7806bd66bf859a"},{"url":"https://git.kernel.org/stable/c/e2948c4232209e87c861a680f20f1e3cf8a57fec"},{"url":"https://git.kernel.org/stable/c/d3a421c82412344022982d5b91ba23194a0a6f29"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:15:41.186Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.7","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}