{"id":"CVE-2025-68732","state":"PUBLISHED","title":"gpu: host1x: Fix race in syncpt alloc/free","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix race in syncpt alloc/free\n\nFix race condition between host1x_syncpt_alloc()\nand host1x_syncpt_put() by using kref_put_mutex()\ninstead of kref_put() + manual mutex locking.\n\nThis ensures no thread can acquire the\nsyncpt_mutex after the refcount drops to zero\nbut before syncpt_release acquires it.\nThis prevents races where syncpoints could\nbe allocated while still being cleaned up\nfrom a previous release.\n\nRemove explicit mutex locking in syncpt_release\nas kref_put_mutex() handles this atomically.","publishedAt":"2025-12-24T10:33:14.664Z","updatedAt":"2026-05-11T21:52:16.287Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"ca9388fba50dac2eb71c13702b7022a801bef90e","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"4aeaece518fa4436af93d1d8b786200d9656ff4b","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"6245cce711e2cdb2cc75c0bb8632952e36f8c972","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"4e6e07ce0197aecfb6c4a62862acc93b3efedeb7","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"d138f73ffb0c57ded473c577719e6e551b7b1f27","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"79197c6007f2afbfd7bcf5b9b80ccabf8483d774","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"c7d393267c497502fa737607f435f05dfe6e3d9b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/host1x/syncpt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.63","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.13","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18.2","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/host1x/syncpt.c"]}],"references":["https://git.kernel.org/stable/c/ca9388fba50dac2eb71c13702b7022a801bef90e","https://git.kernel.org/stable/c/4aeaece518fa4436af93d1d8b786200d9656ff4b","https://git.kernel.org/stable/c/6245cce711e2cdb2cc75c0bb8632952e36f8c972","https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7","https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27","https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774","https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:56.034Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/68xxx/CVE-2025-68732.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68732","state":"PUBLISHED","datePublished":"2025-12-24T10:33:14.664Z","dateUpdated":"2026-05-11T21:52:16.287Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-24T10:30:51.028Z"},"containers":{"cna":{"title":"gpu: host1x: Fix race in syncpt alloc/free","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpu: host1x: Fix race in syncpt alloc/free\n\nFix race condition between host1x_syncpt_alloc()\nand host1x_syncpt_put() by using kref_put_mutex()\ninstead of kref_put() + manual mutex locking.\n\nThis ensures no thread can acquire the\nsyncpt_mutex after the refcount drops to zero\nbut before syncpt_release acquires it.\nThis prevents races where syncpoints could\nbe allocated while still being cleaned up\nfrom a previous release.\n\nRemove explicit mutex locking in syncpt_release\nas kref_put_mutex() handles this atomically."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"ca9388fba50dac2eb71c13702b7022a801bef90e","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"4aeaece518fa4436af93d1d8b786200d9656ff4b","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"6245cce711e2cdb2cc75c0bb8632952e36f8c972","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"4e6e07ce0197aecfb6c4a62862acc93b3efedeb7","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"d138f73ffb0c57ded473c577719e6e551b7b1f27","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"79197c6007f2afbfd7bcf5b9b80ccabf8483d774","versionType":"git"},{"version":"f5ba33fb9690566c382624637125827b5512e766","status":"affected","lessThan":"c7d393267c497502fa737607f435f05dfe6e3d9b","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/host1x/syncpt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.13","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.13","versionType":"semver"},{"version":"5.15.198","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.160","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.120","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.63","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.13","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18.2","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/host1x/syncpt.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ca9388fba50dac2eb71c13702b7022a801bef90e"},{"url":"https://git.kernel.org/stable/c/4aeaece518fa4436af93d1d8b786200d9656ff4b"},{"url":"https://git.kernel.org/stable/c/6245cce711e2cdb2cc75c0bb8632952e36f8c972"},{"url":"https://git.kernel.org/stable/c/4e6e07ce0197aecfb6c4a62862acc93b3efedeb7"},{"url":"https://git.kernel.org/stable/c/d138f73ffb0c57ded473c577719e6e551b7b1f27"},{"url":"https://git.kernel.org/stable/c/79197c6007f2afbfd7bcf5b9b80ccabf8483d774"},{"url":"https://git.kernel.org/stable/c/c7d393267c497502fa737607f435f05dfe6e3d9b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:52:16.287Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"5.15.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.1.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.6.120"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.12.63"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.17.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.18.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.13","versionEndExcluding":"6.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}