{"id":"CVE-2026-98696","state":"PUBLISHED","title":"USB: serial: fix driver deregistration order","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: fix driver deregistration order\n\nUSB serial driver modules register one driver for the USB bus and one or\nmore drivers for the ports on the USB serial bus.\n\nWhen unloading a driver module, the USB driver must be deregistered\nbefore the USB serial bus drivers so that I/O is stopped before\nunbinding the ports to avoid use-after-free in completion handlers\naccessing port data.\n\nNote that the \"new_id\" attributes must first be removed to prevent new\nids from being added and triggering a probe of the USB driver after it\nhas been deregistered.","publishedAt":"2026-10-18T15:46:20.399Z","updatedAt":"2026-10-30T12:38:48.486Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"991904982827f07706c643bb0428c4b689b254e3","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"7c65438e3b98bd6009af09db8c725547192cdfe0","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"2f12343f39e316ff66adc84a6db3569f33b50f66","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"e7ad832b1144df19cbbaaa655625c6f984e85b9f","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"a1aa474768f69ea3a70da523f00f74c264cfa10e","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"428d479a0d31460fbf5969ab262ccd673f1fac01","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"646e5b28b4fdbc1b828a2398d6ced2c1dd308a46","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/serial/bus.c","drivers/usb/serial/usb-serial.c","include/linux/usb/serial.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.4","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","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/usb/serial/bus.c","drivers/usb/serial/usb-serial.c","include/linux/usb/serial.h"]}],"references":["https://git.kernel.org/stable/c/991904982827f07706c643bb0428c4b689b254e3","https://git.kernel.org/stable/c/7c65438e3b98bd6009af09db8c725547192cdfe0","https://git.kernel.org/stable/c/2f12343f39e316ff66adc84a6db3569f33b50f66","https://git.kernel.org/stable/c/e7ad832b1144df19cbbaaa655625c6f984e85b9f","https://git.kernel.org/stable/c/9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe","https://git.kernel.org/stable/c/a1aa474768f69ea3a70da523f00f74c264cfa10e","https://git.kernel.org/stable/c/428d479a0d31460fbf5969ab262ccd673f1fac01","https://git.kernel.org/stable/c/646e5b28b4fdbc1b828a2398d6ced2c1dd308a46"],"weaknesses":[],"ingestedAt":"2026-10-30T12:58:04.520Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98696.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98696","state":"PUBLISHED","datePublished":"2026-10-18T15:46:20.399Z","dateUpdated":"2026-10-30T12:38:48.486Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.365Z"},"containers":{"cna":{"title":"USB: serial: fix driver deregistration order","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: serial: fix driver deregistration order\n\nUSB serial driver modules register one driver for the USB bus and one or\nmore drivers for the ports on the USB serial bus.\n\nWhen unloading a driver module, the USB driver must be deregistered\nbefore the USB serial bus drivers so that I/O is stopped before\nunbinding the ports to avoid use-after-free in completion handlers\naccessing port data.\n\nNote that the \"new_id\" attributes must first be removed to prevent new\nids from being added and triggering a probe of the USB driver after it\nhas been deregistered."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"991904982827f07706c643bb0428c4b689b254e3","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"7c65438e3b98bd6009af09db8c725547192cdfe0","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"2f12343f39e316ff66adc84a6db3569f33b50f66","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"e7ad832b1144df19cbbaaa655625c6f984e85b9f","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"a1aa474768f69ea3a70da523f00f74c264cfa10e","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"428d479a0d31460fbf5969ab262ccd673f1fac01","versionType":"git"},{"version":"765e0ba62613fb90f09c1b5926750df0aa56f349","status":"affected","lessThan":"646e5b28b4fdbc1b828a2398d6ced2c1dd308a46","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/serial/bus.c","drivers/usb/serial/usb-serial.c","include/linux/usb/serial.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.4","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","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/usb/serial/bus.c","drivers/usb/serial/usb-serial.c","include/linux/usb/serial.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/991904982827f07706c643bb0428c4b689b254e3"},{"url":"https://git.kernel.org/stable/c/7c65438e3b98bd6009af09db8c725547192cdfe0"},{"url":"https://git.kernel.org/stable/c/2f12343f39e316ff66adc84a6db3569f33b50f66"},{"url":"https://git.kernel.org/stable/c/e7ad832b1144df19cbbaaa655625c6f984e85b9f"},{"url":"https://git.kernel.org/stable/c/9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe"},{"url":"https://git.kernel.org/stable/c/a1aa474768f69ea3a70da523f00f74c264cfa10e"},{"url":"https://git.kernel.org/stable/c/428d479a0d31460fbf5969ab262ccd673f1fac01"},{"url":"https://git.kernel.org/stable/c/646e5b28b4fdbc1b828a2398d6ced2c1dd308a46"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:38:48.486Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.4","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}