{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-53352", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.400Z", "datePublished": "2026-07-01T13:32:29.105Z", "dateUpdated": "2026-10-15T01:23:20.147Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-01T13:32:29.105Z" }, "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 \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 \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." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/signal.c" ], "versions": [ { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "2b32b2fb241435145ea199efac024540759d2495", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "391ebe74456a0f1d60b3ba4a8a64d9f44c1728fe", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "f8d720bc2e35d568c18be0644e92a468de428370", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "f4aae11abb449dc536269705d0419ec69480faa9", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "76aebd9ef20078719dfd6282d3b06c27e900a65a", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "8c046f36222c6ce1e0daef2c45c891c72602f8a1", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "dfcd0ba14769d94d76ac9d9814b85e7fcacd4e29", "status": "affected", "versionType": "git" }, { "version": "39efa3ef3a376a4e53de2f82fc91182459d34200", "lessThan": "90918794a4e2c3b440f8fcf3847765a8b1d81b25", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/signal.c" ], "versions": [ { "version": "3.0", "status": "affected" }, { "version": "0", "lessThan": "3.0", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.259", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.210", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.176", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.143", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.13", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "3.0", "versionEndExcluding": "5.10.259" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "5.15.210" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.1.176" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.6.143" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.12.94" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "6.18.36" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "7.0.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.0", "versionEndExcluding": "7.1" } ] } ] } ], "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" } }, "adp": [ { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-10-15T01:23:20.147Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.6", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" }, { "vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [ { "status": "affected", "version": "V3.1.7", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html" }, { "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html" } ] } ] } }