{"id":"CVE-2026-64344","state":"PUBLISHED","title":"USB: idmouse: fix use-after-free on disconnect race","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: idmouse: fix use-after-free on disconnect race\n\nmutex_unlock() may access the mutex structure after releasing the lock\nand therefore cannot be used to manage lifetime of objects directly\n(unlike spinlocks and refcounts). [1][2]\n\nUse a kref to release the driver data to avoid use-after-free in\nmutex_unlock() when release() races with disconnect().\n\n[1] a51749ab34d9 (\"locking/mutex: Document that mutex_unlock() is\n                   non-atomic\")\n[2] 2b9d9e0a9ba0 (\"locking/mutex: Clarify that mutex_unlock(), and most\n                   other sleeping locks, can still use the lock object\n                   after it's unlocked\")","publishedAt":"2026-07-25T08:50:06.461Z","updatedAt":"2026-08-17T04:53:48.283Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"31e75fed8f90cfea9f8285e7ed135b0e452bf872","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"8d53b14ad4ccbff6d306b3a39c812303f4a87d41","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"f62622e947f82a3854a8502d09492ffbdeb252b4","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"54c2b7356b4aeea467f9fb13b85e9e036bc428cb","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"e88cff5fbaa629f3cab45c8b46f395d62c2eb515","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"ff002c153f9722caece3983cc23dc4d9d4652cb4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/misc/idmouse.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.24","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.24","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","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":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","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/usb/misc/idmouse.c"]}],"references":["https://git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872","https://git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41","https://git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4","https://git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09","https://git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4","https://git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cb","https://git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515","https://git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/64xxx/CVE-2026-64344.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64344","state":"PUBLISHED","datePublished":"2026-07-25T08:50:06.461Z","dateUpdated":"2026-08-17T04:53:48.283Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-19T15:36:31.781Z"},"containers":{"cna":{"title":"USB: idmouse: fix use-after-free on disconnect race","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nUSB: idmouse: fix use-after-free on disconnect race\n\nmutex_unlock() may access the mutex structure after releasing the lock\nand therefore cannot be used to manage lifetime of objects directly\n(unlike spinlocks and refcounts). [1][2]\n\nUse a kref to release the driver data to avoid use-after-free in\nmutex_unlock() when release() races with disconnect().\n\n[1] a51749ab34d9 (\"locking/mutex: Document that mutex_unlock() is\n                   non-atomic\")\n[2] 2b9d9e0a9ba0 (\"locking/mutex: Clarify that mutex_unlock(), and most\n                   other sleeping locks, can still use the lock object\n                   after it's unlocked\")"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"31e75fed8f90cfea9f8285e7ed135b0e452bf872","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"8d53b14ad4ccbff6d306b3a39c812303f4a87d41","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"f62622e947f82a3854a8502d09492ffbdeb252b4","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"54c2b7356b4aeea467f9fb13b85e9e036bc428cb","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"e88cff5fbaa629f3cab45c8b46f395d62c2eb515","versionType":"git"},{"version":"54d2bc068fd21bcb096660938bce7c7265613a24","status":"affected","lessThan":"ff002c153f9722caece3983cc23dc4d9d4652cb4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/misc/idmouse.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.24","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.24","versionType":"semver"},{"version":"5.10.261","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.212","status":"unaffected","lessThanOrEqual":"5.15.*","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":"6.12.96","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.39","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.4","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/usb/misc/idmouse.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/31e75fed8f90cfea9f8285e7ed135b0e452bf872"},{"url":"https://git.kernel.org/stable/c/8d53b14ad4ccbff6d306b3a39c812303f4a87d41"},{"url":"https://git.kernel.org/stable/c/f62622e947f82a3854a8502d09492ffbdeb252b4"},{"url":"https://git.kernel.org/stable/c/60fc5ef4ecea3e3d1fe556cecf53ddd13096ef09"},{"url":"https://git.kernel.org/stable/c/d0f61acb51a8c8f3fd41c303ddb7770cd83e7ed4"},{"url":"https://git.kernel.org/stable/c/54c2b7356b4aeea467f9fb13b85e9e036bc428cb"},{"url":"https://git.kernel.org/stable/c/e88cff5fbaa629f3cab45c8b46f395d62c2eb515"},{"url":"https://git.kernel.org/stable/c/ff002c153f9722caece3983cc23dc4d9d4652cb4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T04:53:48.283Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.12.96"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"6.18.39"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.24","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}