{"api_version":"1","generated_at":"2026-07-03T03:15:34+00:00","cve":"CVE-2026-53352","urls":{"html":"https://cve.report/CVE-2026-53352","api":"https://cve.report/api/cve/CVE-2026-53352.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53352","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53352"},"summary":{"title":"signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()\n\nWhen a multi-threaded process receives a stop signal (e.g., SIGSTOP),\ndo_signal_stop() sets JOBCTL_STOP_PENDING and JOBCTL_STOP_CONSUME on all\nthreads and sets signal->group_stop_count to the number of threads. If\none of the threads concurrently calls execve(), de_thread() invokes\nzap_other_threads() to kill all other threads. zap_other_threads()\naborts the pending group stop by resetting signal->group_stop_count to 0\nand clears the JOBCTL_PENDING_MASK for all other threads. However, it\nfails to clear the job control flags for the calling thread.\n\nWhen execve() completes, the calling thread returns to user mode and\nchecks for pending signals. Seeing the stale JOBCTL_STOP_PENDING flag,\nit calls do_signal_stop(), which invokes task_participate_group_stop().\nSince JOBCTL_STOP_CONSUME is still set, it attempts to decrement the\nalready-zero signal->group_stop_count, triggering a warning:\n\nsig->group_stop_count == 0\nWARNING: CPU: 1 PID: 6475 at kernel/signal.c:373\ntask_participate_group_stop+0x215/0x2d0\nCall Trace:\n <TASK>\n do_signal_stop+0x3be/0x5c0 kernel/signal.c:2619\n get_signal+0xa8c/0x1330 kernel/signal.c:2884\n arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337\n exit_to_user_mode_loop+0x8c/0x4d0 kernel/entry/common.c:98\n do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nFix this race condition by clearing the JOBCTL_PENDING_MASK for the\ncalling thread in zap_other_threads(), ensuring it does not retain any\nstale job control state after the thread group is destroyed. This aligns\nwith other functions that tear down a thread group and abort group\nstops, such as zap_process() and complete_signal(), which correctly\nclear these flags for all threads including the current one.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-01 14:16:43","updated_at":"2026-07-01 14:16:43"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29","name":"https://git.kernel.org/stable/c/dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/76aebd9ef20078719dfd6282d3b06c27e900a65a","name":"https://git.kernel.org/stable/c/76aebd9ef20078719dfd6282d3b06c27e900a65a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f4aae11abb449dc536269705d0419ec69480faa9","name":"https://git.kernel.org/stable/c/f4aae11abb449dc536269705d0419ec69480faa9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe","name":"https://git.kernel.org/stable/c/391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8c046f36222c6ce1e0daef2c45c891c72602f8a1","name":"https://git.kernel.org/stable/c/8c046f36222c6ce1e0daef2c45c891c72602f8a1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f8d720bc2e35d568c18be0644e92a468de428370","name":"https://git.kernel.org/stable/c/f8d720bc2e35d568c18be0644e92a468de428370","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2b32b2fb241435145ea199efac024540759d2495","name":"https://git.kernel.org/stable/c/2b32b2fb241435145ea199efac024540759d2495","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/90918794a4e2c3b440f8fcf3847765a8b1d81b25","name":"https://git.kernel.org/stable/c/90918794a4e2c3b440f8fcf3847765a8b1d81b25","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53352","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53352","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 2b32b2fb241435145ea199efac024540759d2495 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 f8d720bc2e35d568c18be0644e92a468de428370 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 f4aae11abb449dc536269705d0419ec69480faa9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 76aebd9ef20078719dfd6282d3b06c27e900a65a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 8c046f36222c6ce1e0daef2c45c891c72602f8a1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 39efa3ef3a376a4e53de2f82fc91182459d34200 90918794a4e2c3b440f8fcf3847765a8b1d81b25 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 3.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 3.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.259 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53352","cve":"CVE-2026-53352","epss":"0.001640000","percentile":"0.059860000","score_date":"2026-07-02","updated_at":"2026-07-03 00:06:12"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["kernel/signal.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"2b32b2fb241435145ea199efac024540759d2495","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"f8d720bc2e35d568c18be0644e92a468de428370","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"f4aae11abb449dc536269705d0419ec69480faa9","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"76aebd9ef20078719dfd6282d3b06c27e900a65a","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"8c046f36222c6ce1e0daef2c45c891c72602f8a1","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"},{"lessThan":"90918794a4e2c3b440f8fcf3847765a8b1d81b25","status":"affected","version":"39efa3ef3a376a4e53de2f82fc91182459d34200","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["kernel/signal.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.0"},{"lessThan":"3.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"3.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"3.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()\n\nWhen a multi-threaded process receives a stop signal (e.g., SIGSTOP),\ndo_signal_stop() sets JOBCTL_STOP_PENDING and JOBCTL_STOP_CONSUME on all\nthreads and sets signal->group_stop_count to the number of threads. If\none of the threads concurrently calls execve(), de_thread() invokes\nzap_other_threads() to kill all other threads. zap_other_threads()\naborts the pending group stop by resetting signal->group_stop_count to 0\nand clears the JOBCTL_PENDING_MASK for all other threads. However, it\nfails to clear the job control flags for the calling thread.\n\nWhen execve() completes, the calling thread returns to user mode and\nchecks for pending signals. Seeing the stale JOBCTL_STOP_PENDING flag,\nit calls do_signal_stop(), which invokes task_participate_group_stop().\nSince JOBCTL_STOP_CONSUME is still set, it attempts to decrement the\nalready-zero signal->group_stop_count, triggering a warning:\n\nsig->group_stop_count == 0\nWARNING: CPU: 1 PID: 6475 at kernel/signal.c:373\ntask_participate_group_stop+0x215/0x2d0\nCall Trace:\n <TASK>\n do_signal_stop+0x3be/0x5c0 kernel/signal.c:2619\n get_signal+0xa8c/0x1330 kernel/signal.c:2884\n arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337\n exit_to_user_mode_loop+0x8c/0x4d0 kernel/entry/common.c:98\n do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nFix this race condition by clearing the JOBCTL_PENDING_MASK for the\ncalling thread in zap_other_threads(), ensuring it does not retain any\nstale job control state after the thread group is destroyed. This aligns\nwith other functions that tear down a thread group and abort group\nstops, such as zap_process() and complete_signal(), which correctly\nclear these flags for all threads including the current one."}],"providerMetadata":{"dateUpdated":"2026-07-01T13:32:29.105Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/2b32b2fb241435145ea199efac024540759d2495"},{"url":"https://git.kernel.org/stable/c/391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe"},{"url":"https://git.kernel.org/stable/c/f8d720bc2e35d568c18be0644e92a468de428370"},{"url":"https://git.kernel.org/stable/c/f4aae11abb449dc536269705d0419ec69480faa9"},{"url":"https://git.kernel.org/stable/c/76aebd9ef20078719dfd6282d3b06c27e900a65a"},{"url":"https://git.kernel.org/stable/c/8c046f36222c6ce1e0daef2c45c891c72602f8a1"},{"url":"https://git.kernel.org/stable/c/dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29"},{"url":"https://git.kernel.org/stable/c/90918794a4e2c3b440f8fcf3847765a8b1d81b25"}],"title":"signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53352","datePublished":"2026-07-01T13:32:29.105Z","dateReserved":"2026-06-09T07:44:35.400Z","dateUpdated":"2026-07-01T13:32:29.105Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-01 14:16:43","lastModifiedDate":"2026-07-01 14:16:43","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53352","Ordinal":"1","Title":"signal: clear JOBCTL_PENDING_MASK for caller in zap_other_thread","CVE":"CVE-2026-53352","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53352","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()\n\nWhen a multi-threaded process receives a stop signal (e.g., SIGSTOP),\ndo_signal_stop() sets JOBCTL_STOP_PENDING and JOBCTL_STOP_CONSUME on all\nthreads and sets signal->group_stop_count to the number of threads. If\none of the threads concurrently calls execve(), de_thread() invokes\nzap_other_threads() to kill all other threads. zap_other_threads()\naborts the pending group stop by resetting signal->group_stop_count to 0\nand clears the JOBCTL_PENDING_MASK for all other threads. However, it\nfails to clear the job control flags for the calling thread.\n\nWhen execve() completes, the calling thread returns to user mode and\nchecks for pending signals. Seeing the stale JOBCTL_STOP_PENDING flag,\nit calls do_signal_stop(), which invokes task_participate_group_stop().\nSince JOBCTL_STOP_CONSUME is still set, it attempts to decrement the\nalready-zero signal->group_stop_count, triggering a warning:\n\nsig->group_stop_count == 0\nWARNING: CPU: 1 PID: 6475 at kernel/signal.c:373\ntask_participate_group_stop+0x215/0x2d0\nCall Trace:\n <TASK>\n do_signal_stop+0x3be/0x5c0 kernel/signal.c:2619\n get_signal+0xa8c/0x1330 kernel/signal.c:2884\n arch_do_signal_or_restart+0xbc/0x840 arch/x86/kernel/signal.c:337\n exit_to_user_mode_loop+0x8c/0x4d0 kernel/entry/common.c:98\n do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nFix this race condition by clearing the JOBCTL_PENDING_MASK for the\ncalling thread in zap_other_threads(), ensuring it does not retain any\nstale job control state after the thread group is destroyed. This aligns\nwith other functions that tear down a thread group and abort group\nstops, such as zap_process() and complete_signal(), which correctly\nclear these flags for all threads including the current one.","Type":"Description","Title":"signal: clear JOBCTL_PENDING_MASK for caller in zap_other_thread"}]}}}