{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2022-49133","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-02-26T01:49:39.267Z","datePublished":"2025-02-26T01:55:07.722Z","dateUpdated":"2025-05-04T08:30:42.301Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T08:30:42.301Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: svm range restore work deadlock when process exit\n\nkfd_process_notifier_release flush svm_range_restore_work\nwhich calls svm_range_list_lock_and_flush_work to flush deferred_list\nwork, but if deferred_list work mmput release the last user, it will\ncall exit_mmap -> notifier_release, it is deadlock with below backtrace.\n\nMove flush svm_range_restore_work to kfd_process_wq_release to avoid\ndeadlock. Then svm_range_restore_work take task->mm ref to avoid mm is\ngone while validating and mapping ranges to GPU.\n\nWorkqueue: events svm_range_deferred_list_work [amdgpu]\nCall Trace:\n wait_for_completion+0x94/0x100\n __flush_work+0x12a/0x1e0\n __cancel_work_timer+0x10e/0x190\n cancel_delayed_work_sync+0x13/0x20\n kfd_process_notifier_release+0x98/0x2a0 [amdgpu]\n __mmu_notifier_release+0x74/0x1f0\n exit_mmap+0x170/0x200\n mmput+0x5d/0x130\n svm_range_deferred_list_work+0x104/0x230 [amdgpu]\n process_one_work+0x220/0x3c0"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_process.c","drivers/gpu/drm/amd/amdkfd/kfd_svm.c"],"versions":[{"version":"42de677f79999791bee4e21be318c32d90ab62c6","lessThan":"a6be83086e91891081e0589e4b4645bf4643e897","status":"affected","versionType":"git"},{"version":"42de677f79999791bee4e21be318c32d90ab62c6","lessThan":"858822905f4bf44100d63c5e22e263109976f7cb","status":"affected","versionType":"git"},{"version":"42de677f79999791bee4e21be318c32d90ab62c6","lessThan":"6225bb3a88d22594aacea2485dc28ca12d596721","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpu/drm/amd/amdkfd/kfd_process.c","drivers/gpu/drm/amd/amdkfd/kfd_svm.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.16.20","lessThanOrEqual":"5.16.*","status":"unaffected","versionType":"semver"},{"version":"5.17.3","lessThanOrEqual":"5.17.*","status":"unaffected","versionType":"semver"},{"version":"5.18","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.16.20"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"5.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a6be83086e91891081e0589e4b4645bf4643e897"},{"url":"https://git.kernel.org/stable/c/858822905f4bf44100d63c5e22e263109976f7cb"},{"url":"https://git.kernel.org/stable/c/6225bb3a88d22594aacea2485dc28ca12d596721"}],"title":"drm/amdkfd: svm range restore work deadlock when process exit","x_generator":{"engine":"bippy-1.2.0"}}}}