{"id":"CVE-2025-37967","state":"PUBLISHED","title":"usb: typec: ucsi: displayport: Fix deadlock","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: displayport: Fix deadlock\n\nThis patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock\nfunctions to the UCSI driver. ucsi_con_mutex_lock ensures the connector\nmutex is only locked if a connection is established and the partner pointer\nis valid. This resolves a deadlock scenario where\nucsi_displayport_remove_partner holds con->mutex waiting for\ndp_altmode_work to complete while dp_altmode_work attempts to acquire it.","publishedAt":"2025-05-20T16:47:15.473Z","updatedAt":"2026-05-11T21:18:42.177Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"f4bd982563c2fd41ec9ca6c517c392d759db801c","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"f32451ca4cb7dc53f2a0e2e66b84d34162747eb7","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"962ce9028ca6eb450d5c205238a3ee27de9d214d","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"5924b324468845fc795bd76f588f51d7ab4f202d","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"61fc1a8e1e10cc784cab5829930838aaf1d37af5","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"364618c89d4c57c85e5fc51a2446cd939bf57802","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/displayport.c","drivers/usb/typec/ucsi/ucsi.c","drivers/usb/typec/ucsi/ucsi.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.15.184","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.140","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.92","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.30","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.7","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/displayport.c","drivers/usb/typec/ucsi/ucsi.c","drivers/usb/typec/ucsi/ucsi.h"]}],"references":["https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c","https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7","https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d","https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d","https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5","https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802","https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:03.054Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/37xxx/CVE-2025-37967.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-37967","state":"PUBLISHED","datePublished":"2025-05-20T16:47:15.473Z","dateUpdated":"2026-05-11T21:18:42.177Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:23.974Z"},"containers":{"cna":{"title":"usb: typec: ucsi: displayport: Fix deadlock","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: displayport: Fix deadlock\n\nThis patch introduces the ucsi_con_mutex_lock / ucsi_con_mutex_unlock\nfunctions to the UCSI driver. ucsi_con_mutex_lock ensures the connector\nmutex is only locked if a connection is established and the partner pointer\nis valid. This resolves a deadlock scenario where\nucsi_displayport_remove_partner holds con->mutex waiting for\ndp_altmode_work to complete while dp_altmode_work attempts to acquire it."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"f4bd982563c2fd41ec9ca6c517c392d759db801c","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"f32451ca4cb7dc53f2a0e2e66b84d34162747eb7","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"962ce9028ca6eb450d5c205238a3ee27de9d214d","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"5924b324468845fc795bd76f588f51d7ab4f202d","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"61fc1a8e1e10cc784cab5829930838aaf1d37af5","versionType":"git"},{"version":"af8622f6a585d8d82b11cd7987e082861fd0edd3","status":"affected","lessThan":"364618c89d4c57c85e5fc51a2446cd939bf57802","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/displayport.c","drivers/usb/typec/ucsi/ucsi.c","drivers/usb/typec/ucsi/ucsi.h"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.2","versionType":"semver"},{"version":"5.15.184","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.140","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.92","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.30","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.14.7","status":"unaffected","lessThanOrEqual":"6.14.*","versionType":"semver"},{"version":"6.15","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/usb/typec/ucsi/displayport.c","drivers/usb/typec/ucsi/ucsi.c","drivers/usb/typec/ucsi/ucsi.h"]}],"references":[{"url":"https://git.kernel.org/stable/c/f4bd982563c2fd41ec9ca6c517c392d759db801c"},{"url":"https://git.kernel.org/stable/c/f32451ca4cb7dc53f2a0e2e66b84d34162747eb7"},{"url":"https://git.kernel.org/stable/c/962ce9028ca6eb450d5c205238a3ee27de9d214d"},{"url":"https://git.kernel.org/stable/c/5924b324468845fc795bd76f588f51d7ab4f202d"},{"url":"https://git.kernel.org/stable/c/61fc1a8e1e10cc784cab5829930838aaf1d37af5"},{"url":"https://git.kernel.org/stable/c/364618c89d4c57c85e5fc51a2446cd939bf57802"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:18:42.177Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"5.15.184"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.1.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.6.92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.12.30"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.14.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.15"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T19:57:51.142Z"}}]}}}