{"api_version":"1","generated_at":"2026-05-15T21:58:58+00:00","cve":"CVE-2026-46333","urls":{"html":"https://cve.report/CVE-2026-46333","api":"https://cve.report/api/cve/CVE-2026-46333.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46333","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46333"},"summary":{"title":"ptrace: slightly saner 'get_dumpable()' logic","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nptrace: slightly saner 'get_dumpable()' logic\n\nThe 'dumpability' of a task is fundamentally about the memory image of\nthe task - the concept comes from whether it can core dump or not - and\nmakes no sense when you don't have an associated mm.\n\nAnd almost all users do in fact use it only for the case where the task\nhas a mm pointer.\n\nBut we have one odd special case: ptrace_may_access() uses 'dumpable' to\ncheck various other things entirely independently of the MM (typically\nexplicitly using flags like PTRACE_MODE_READ_FSCREDS).  Including for\nthreads that no longer have a VM (and maybe never did, like most kernel\nthreads).\n\nIt's not what this flag was designed for, but it is what it is.\n\nThe ptrace code does check that the uid/gid matches, so you do have to\nbe uid-0 to see kernel thread details, but this means that the\ntraditional \"drop capabilities\" model doesn't make any difference for\nthis all.\n\nMake it all make a *bit* more sense by saying that if you don't have a\nMM pointer, we'll use a cached \"last dumpability\" flag if the thread\never had a MM (it will be zero for kernel threads since it is never\nset), and require a proper CAP_SYS_PTRACE capability to override.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-15 14:16:35","updated_at":"2026-05-15 20:16:49"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730","name":"https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"http://www.openwall.com/lists/oss-security/2026/05/15/9","name":"http://www.openwall.com/lists/oss-security/2026/05/15/9","refsource":"af854a3a-2127-422b-91ae-364da2661108","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d","name":"https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7","name":"https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205","name":"https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d","name":"https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6","name":"https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181","name":"https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46333","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46333","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 15b828a46f305ae9f05a7c16914b3ce273474205 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 4709234fd1b95136ceb789f639b1e7ea5de1b181 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 8f907d345bae8f4b3f004c5abc56bf2dfb851ea7 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.31 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.8 7.0.* semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"providerMetadata":{"dateUpdated":"2026-05-15T19:31:47.905Z","orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE"},"references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/15/9"}],"title":"CVE Program Container"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["include/linux/sched.h","kernel/exit.c","kernel/ptrace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"15b828a46f305ae9f05a7c16914b3ce273474205","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"4709234fd1b95136ceb789f639b1e7ea5de1b181","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"8f907d345bae8f4b3f004c5abc56bf2dfb851ea7","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"2a93a4fac7b6051d3be7cd1b015fe7320cd0404d","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"},{"lessThan":"01363cb3fbd0238ffdeb09f53e9039c9edf8a730","status":"affected","version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["include/linux/sched.h","kernel/exit.c","kernel/ptrace.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.256","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.207","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.173","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.139","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.89","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.31","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.8","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.256","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.207","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.173","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.139","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.89","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.31","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.8","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nptrace: slightly saner 'get_dumpable()' logic\n\nThe 'dumpability' of a task is fundamentally about the memory image of\nthe task - the concept comes from whether it can core dump or not - and\nmakes no sense when you don't have an associated mm.\n\nAnd almost all users do in fact use it only for the case where the task\nhas a mm pointer.\n\nBut we have one odd special case: ptrace_may_access() uses 'dumpable' to\ncheck various other things entirely independently of the MM (typically\nexplicitly using flags like PTRACE_MODE_READ_FSCREDS).  Including for\nthreads that no longer have a VM (and maybe never did, like most kernel\nthreads).\n\nIt's not what this flag was designed for, but it is what it is.\n\nThe ptrace code does check that the uid/gid matches, so you do have to\nbe uid-0 to see kernel thread details, but this means that the\ntraditional \"drop capabilities\" model doesn't make any difference for\nthis all.\n\nMake it all make a *bit* more sense by saying that if you don't have a\nMM pointer, we'll use a cached \"last dumpability\" flag if the thread\never had a MM (it will be zero for kernel threads since it is never\nset), and require a proper CAP_SYS_PTRACE capability to override."}],"providerMetadata":{"dateUpdated":"2026-05-15T12:58:44.599Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6"},{"url":"https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205"},{"url":"https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181"},{"url":"https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7"},{"url":"https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d"},{"url":"https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d"},{"url":"https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730"}],"title":"ptrace: slightly saner 'get_dumpable()' logic","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46333","datePublished":"2026-05-15T12:58:44.599Z","dateReserved":"2026-05-13T15:03:33.113Z","dateUpdated":"2026-05-15T19:31:47.905Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-15 14:16:35","lastModifiedDate":"2026-05-15 20:16:49","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46333","Ordinal":"1","Title":"ptrace: slightly saner 'get_dumpable()' logic","CVE":"CVE-2026-46333","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46333","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nptrace: slightly saner 'get_dumpable()' logic\n\nThe 'dumpability' of a task is fundamentally about the memory image of\nthe task - the concept comes from whether it can core dump or not - and\nmakes no sense when you don't have an associated mm.\n\nAnd almost all users do in fact use it only for the case where the task\nhas a mm pointer.\n\nBut we have one odd special case: ptrace_may_access() uses 'dumpable' to\ncheck various other things entirely independently of the MM (typically\nexplicitly using flags like PTRACE_MODE_READ_FSCREDS).  Including for\nthreads that no longer have a VM (and maybe never did, like most kernel\nthreads).\n\nIt's not what this flag was designed for, but it is what it is.\n\nThe ptrace code does check that the uid/gid matches, so you do have to\nbe uid-0 to see kernel thread details, but this means that the\ntraditional \"drop capabilities\" model doesn't make any difference for\nthis all.\n\nMake it all make a *bit* more sense by saying that if you don't have a\nMM pointer, we'll use a cached \"last dumpability\" flag if the thread\never had a MM (it will be zero for kernel threads since it is never\nset), and require a proper CAP_SYS_PTRACE capability to override.","Type":"Description","Title":"ptrace: slightly saner 'get_dumpable()' logic"}]}}}