{"id":"CVE-2026-68180","state":"PUBLISHED","title":"intel_th: fix MSC output device reference leak","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: fix MSC output device reference leak\n\nintel_th_output_open() looks up the output device with\nbus_find_device_by_devt(), which returns the device with a reference that\nmust be dropped after use.\n\ncommit 95fc36a234da (\"intel_th: fix device leak on output open()\")\nattempted to drop the reference from intel_th_output_release(). However,\na successful open replaces file->f_op with the output driver file\noperations before returning, so close runs the output driver release\ncallback instead.\n\nFor MSC outputs, close runs intel_th_msc_release(), which only removes\nthe per-file iterator and does not drop the device reference taken by\nintel_th_output_open(). Consequently, every successful MSC output open\nleaks one device reference.\n\nDrop the device reference from intel_th_msc_release(), which is the\nrelease path actually used for MSC output files. Remove the now-unused\nintel_th_output_release() callback from intel_th_output_fops.","publishedAt":"2026-08-10T11:59:51.694Z","updatedAt":"2026-08-19T16:30:44.755Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af4b9467296b9a16ebc008147238070236982b6d","status":"affected","lessThan":"12ad4fad748e6e563ff4480f03b89134a41b5c37","versionType":"git"},{"version":"64015cbf06e8bb75b81ae95b997e847b55280f7f","status":"affected","lessThan":"df55842fddbcdb80e6dd16680439c0f780ed592e","versionType":"git"},{"version":"b71e64ef7ff9443835d1333e3e80ab1e49e5209f","status":"affected","lessThan":"141641a70ed337e54487f766ede745fc2ce44c42","versionType":"git"},{"version":"bf7785434b5d05d940d936b78925080950bd54dd","status":"affected","lessThan":"ddcf2064d7ec5a8c9afa7cb74442320e443502bc","versionType":"git"},{"version":"0fca16c5591534cc1fec8b6181277ee3a3d0f26c","status":"affected","lessThan":"26e27b8dcef1e4df6f30d8f25b3304a506d482b3","versionType":"git"},{"version":"f9b059bda4276f2bb72cb98ec7875a747f042ea2","status":"affected","lessThan":"caba30eb8bd321c465ecfc7d850ee85f5b353496","versionType":"git"},{"version":"95fc36a234da24bbc5f476f8104a5a15f99ed3e3","status":"affected","lessThan":"c3a28f9cb82425fe0835048ed3677f321e780691","versionType":"git"},{"version":"95fc36a234da24bbc5f476f8104a5a15f99ed3e3","status":"affected","lessThan":"761b785a0cfbce43761227bc42a7f984f31f8921","versionType":"git"},{"version":"5.10.249","status":"affected","lessThan":"5.10.265","versionType":"semver"},{"version":"5.15.199","status":"affected","lessThan":"5.15.216","versionType":"semver"},{"version":"6.1.162","status":"affected","lessThan":"6.1.183","versionType":"semver"},{"version":"6.6.122","status":"affected","lessThan":"6.6.148","versionType":"semver"},{"version":"6.12.68","status":"affected","lessThan":"6.12.101","versionType":"semver"},{"version":"6.18.8","status":"affected","lessThan":"6.18.42","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwtracing/intel_th/core.c","drivers/hwtracing/intel_th/msu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","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/hwtracing/intel_th/core.c","drivers/hwtracing/intel_th/msu.c"]}],"references":["https://git.kernel.org/stable/c/12ad4fad748e6e563ff4480f03b89134a41b5c37","https://git.kernel.org/stable/c/df55842fddbcdb80e6dd16680439c0f780ed592e","https://git.kernel.org/stable/c/141641a70ed337e54487f766ede745fc2ce44c42","https://git.kernel.org/stable/c/ddcf2064d7ec5a8c9afa7cb74442320e443502bc","https://git.kernel.org/stable/c/26e27b8dcef1e4df6f30d8f25b3304a506d482b3","https://git.kernel.org/stable/c/caba30eb8bd321c465ecfc7d850ee85f5b353496","https://git.kernel.org/stable/c/c3a28f9cb82425fe0835048ed3677f321e780691","https://git.kernel.org/stable/c/761b785a0cfbce43761227bc42a7f984f31f8921"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:49.727Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/68xxx/CVE-2026-68180.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68180","state":"PUBLISHED","datePublished":"2026-08-10T11:59:51.694Z","dateUpdated":"2026-08-19T16:30:44.755Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-07-30T09:28:09.373Z"},"containers":{"cna":{"title":"intel_th: fix MSC output device reference leak","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nintel_th: fix MSC output device reference leak\n\nintel_th_output_open() looks up the output device with\nbus_find_device_by_devt(), which returns the device with a reference that\nmust be dropped after use.\n\ncommit 95fc36a234da (\"intel_th: fix device leak on output open()\")\nattempted to drop the reference from intel_th_output_release(). However,\na successful open replaces file->f_op with the output driver file\noperations before returning, so close runs the output driver release\ncallback instead.\n\nFor MSC outputs, close runs intel_th_msc_release(), which only removes\nthe per-file iterator and does not drop the device reference taken by\nintel_th_output_open(). Consequently, every successful MSC output open\nleaks one device reference.\n\nDrop the device reference from intel_th_msc_release(), which is the\nrelease path actually used for MSC output files. Remove the now-unused\nintel_th_output_release() callback from intel_th_output_fops."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af4b9467296b9a16ebc008147238070236982b6d","status":"affected","lessThan":"12ad4fad748e6e563ff4480f03b89134a41b5c37","versionType":"git"},{"version":"64015cbf06e8bb75b81ae95b997e847b55280f7f","status":"affected","lessThan":"df55842fddbcdb80e6dd16680439c0f780ed592e","versionType":"git"},{"version":"b71e64ef7ff9443835d1333e3e80ab1e49e5209f","status":"affected","lessThan":"141641a70ed337e54487f766ede745fc2ce44c42","versionType":"git"},{"version":"bf7785434b5d05d940d936b78925080950bd54dd","status":"affected","lessThan":"ddcf2064d7ec5a8c9afa7cb74442320e443502bc","versionType":"git"},{"version":"0fca16c5591534cc1fec8b6181277ee3a3d0f26c","status":"affected","lessThan":"26e27b8dcef1e4df6f30d8f25b3304a506d482b3","versionType":"git"},{"version":"f9b059bda4276f2bb72cb98ec7875a747f042ea2","status":"affected","lessThan":"caba30eb8bd321c465ecfc7d850ee85f5b353496","versionType":"git"},{"version":"95fc36a234da24bbc5f476f8104a5a15f99ed3e3","status":"affected","lessThan":"c3a28f9cb82425fe0835048ed3677f321e780691","versionType":"git"},{"version":"95fc36a234da24bbc5f476f8104a5a15f99ed3e3","status":"affected","lessThan":"761b785a0cfbce43761227bc42a7f984f31f8921","versionType":"git"},{"version":"5.10.249","status":"affected","lessThan":"5.10.265","versionType":"semver"},{"version":"5.15.199","status":"affected","lessThan":"5.15.216","versionType":"semver"},{"version":"6.1.162","status":"affected","lessThan":"6.1.183","versionType":"semver"},{"version":"6.6.122","status":"affected","lessThan":"6.6.148","versionType":"semver"},{"version":"6.12.68","status":"affected","lessThan":"6.12.101","versionType":"semver"},{"version":"6.18.8","status":"affected","lessThan":"6.18.42","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwtracing/intel_th/core.c","drivers/hwtracing/intel_th/msu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.19","versionType":"semver"},{"version":"5.10.265","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.216","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.183","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.148","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.101","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.42","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.6","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/hwtracing/intel_th/core.c","drivers/hwtracing/intel_th/msu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/12ad4fad748e6e563ff4480f03b89134a41b5c37"},{"url":"https://git.kernel.org/stable/c/df55842fddbcdb80e6dd16680439c0f780ed592e"},{"url":"https://git.kernel.org/stable/c/141641a70ed337e54487f766ede745fc2ce44c42"},{"url":"https://git.kernel.org/stable/c/ddcf2064d7ec5a8c9afa7cb74442320e443502bc"},{"url":"https://git.kernel.org/stable/c/26e27b8dcef1e4df6f30d8f25b3304a506d482b3"},{"url":"https://git.kernel.org/stable/c/caba30eb8bd321c465ecfc7d850ee85f5b353496"},{"url":"https://git.kernel.org/stable/c/c3a28f9cb82425fe0835048ed3677f321e780691"},{"url":"https://git.kernel.org/stable/c/761b785a0cfbce43761227bc42a7f984f31f8921"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-19T16:30:44.755Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.249","versionEndExcluding":"5.10.265"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.15.199","versionEndExcluding":"5.15.216"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.162","versionEndExcluding":"6.1.183"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.122","versionEndExcluding":"6.6.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.68","versionEndExcluding":"6.12.101"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18.8","versionEndExcluding":"6.18.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.1.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.19","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}