{"id":"CVE-2024-26747","state":"PUBLISHED","title":"usb: roles: fix NULL pointer issue when put module's reference","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: roles: fix NULL pointer issue when put module's reference\n\nIn current design, usb role class driver will get usb_role_switch parent's\nmodule reference after the user get usb_role_switch device and put the\nreference after the user put the usb_role_switch device. However, the\nparent device of usb_role_switch may be removed before the user put the\nusb_role_switch. If so, then, NULL pointer issue will be met when the user\nput the parent module's reference.\n\nThis will save the module pointer in structure of usb_role_switch. Then,\nwe don't need to find module by iterating long relations.","publishedAt":"2024-04-03T17:00:34.066Z","updatedAt":"2026-05-23T15:37:31.595Z","severity":{"score":4.4,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"e279bf8e51893e1fe160b3d8126ef2dd00f661e1","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"ef982fc41055fcebb361a92288d3225783d12913","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"0158216805ca7e498d07de38840d2732166ae5fa","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"4b45829440b1b208948b39cc71f77a37a2536734","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"01f82de440f2ab07c259b7573371e1c42e5565db","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"1c9be13846c0b2abc2480602f8ef421360e1ad9e","versionType":"git"},{"version":"7b169e33a3bc9040e06988b2bc15e83d2af80358","status":"affected","versionType":"git"},{"version":"4.18.12","status":"affected","lessThan":"4.19","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/roles/class.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.211","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.150","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.80","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.19","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.7","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/roles/class.c"]}],"references":["https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1","https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913","https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa","https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734","https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db","https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e","https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/26xxx/CVE-2024-26747.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-26747","state":"PUBLISHED","datePublished":"2024-04-03T17:00:34.066Z","dateUpdated":"2026-05-23T15:37:31.595Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-02-19T14:20:24.168Z"},"containers":{"cna":{"title":"usb: roles: fix NULL pointer issue when put module's reference","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: roles: fix NULL pointer issue when put module's reference\n\nIn current design, usb role class driver will get usb_role_switch parent's\nmodule reference after the user get usb_role_switch device and put the\nreference after the user put the usb_role_switch device. However, the\nparent device of usb_role_switch may be removed before the user put the\nusb_role_switch. If so, then, NULL pointer issue will be met when the user\nput the parent module's reference.\n\nThis will save the module pointer in structure of usb_role_switch. Then,\nwe don't need to find module by iterating long relations."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"e279bf8e51893e1fe160b3d8126ef2dd00f661e1","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"ef982fc41055fcebb361a92288d3225783d12913","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"0158216805ca7e498d07de38840d2732166ae5fa","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"4b45829440b1b208948b39cc71f77a37a2536734","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"01f82de440f2ab07c259b7573371e1c42e5565db","versionType":"git"},{"version":"5c54fcac9a9de559b444ac63ec3cd82f1d157a0b","status":"affected","lessThan":"1c9be13846c0b2abc2480602f8ef421360e1ad9e","versionType":"git"},{"version":"7b169e33a3bc9040e06988b2bc15e83d2af80358","status":"affected","versionType":"git"},{"version":"4.18.12","status":"affected","lessThan":"4.19","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/roles/class.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","versionType":"semver"},{"version":"5.10.211","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.150","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.80","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.19","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.7.7","status":"unaffected","lessThanOrEqual":"6.7.*","versionType":"semver"},{"version":"6.8","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/roles/class.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/e279bf8e51893e1fe160b3d8126ef2dd00f661e1"},{"url":"https://git.kernel.org/stable/c/ef982fc41055fcebb361a92288d3225783d12913"},{"url":"https://git.kernel.org/stable/c/0158216805ca7e498d07de38840d2732166ae5fa"},{"url":"https://git.kernel.org/stable/c/4b45829440b1b208948b39cc71f77a37a2536734"},{"url":"https://git.kernel.org/stable/c/01f82de440f2ab07c259b7573371e1c42e5565db"},{"url":"https://git.kernel.org/stable/c/1c9be13846c0b2abc2480602f8ef421360e1ad9e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:37:31.595Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.211"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.150"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.7.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18.12"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA 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