{"id":"CVE-2026-46333","revision":null,"records":[{"revision":"864767d6b87a4775b0e3da00311044a6","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-46333","aliases":[],"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":0,"publishedAt":"2026-05-15T12:58:44.599+00:00","modifiedAt":"2026-10-15T01:21:42.063+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"unaffected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/sched.h\",\n \"kernel/exit.c\",\n \"kernel/ptrace.c\"\n ],\n \"versions\": [\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"15b828a46f305ae9f05a7c16914b3ce273474205\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"4709234fd1b95136ceb789f639b1e7ea5de1b181\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"8f907d345bae8f4b3f004c5abc56bf2dfb851ea7\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"2a93a4fac7b6051d3be7cd1b015fe7320cd0404d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"01363cb3fbd0238ffdeb09f53e9039c9edf8a730\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"bfedb589252c01fa505ac9f6f2a3d5d68d707ef4\",\n \"lessThan\": \"31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"d5b3e840dbf6dd2c0f30b5982b6f5ecd49e46b12\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"03eed7afbc09e061f66b448daf7863174c3dc3f3\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"e45692fa1aea06676449b63ef3c2b6e1e72b7578\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"694a95fa6dae4991f16cda333d897ea063021fed\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3.16.52\",\n \"lessThan\": \"3.17\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.4.40\",\n \"lessThan\": \"4.5\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.8.16\",\n \"lessThan\": \"4.9\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.9.1\",\n \"lessThan\": \"4.10\",\n \"status\": \"affected\",\n \"versionType\": \"semver\"\n }\n ]\n }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n \"product\": \"Linux\",\n \"vendor\": \"Linux\",\n \"defaultStatus\": \"affected\",\n \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n \"programFiles\": [\n \"include/linux/sched.h\",\n \"kernel/exit.c\",\n \"kernel/ptrace.c\"\n ],\n \"versions\": [\n {\n \"version\": \"4.10\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"4.10\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.256\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.207\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.173\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.139\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.12.89\",\n \"lessThanOrEqual\": \"6.12.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.18.31\",\n \"lessThanOrEqual\": \"6.18.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.0.8\",\n \"lessThanOrEqual\": \"7.0.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"7.1\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":7.1,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/93d4ba49d18e3d7fb41a9927c2d0cca5e9dfefd6","https://git.kernel.org/stable/c/15b828a46f305ae9f05a7c16914b3ce273474205","https://git.kernel.org/stable/c/4709234fd1b95136ceb789f639b1e7ea5de1b181","https://git.kernel.org/stable/c/8f907d345bae8f4b3f004c5abc56bf2dfb851ea7","https://git.kernel.org/stable/c/6e5b51e74a40d377bcd3081dd33fbaa0e1aa7e3d","https://git.kernel.org/stable/c/2a93a4fac7b6051d3be7cd1b015fe7320cd0404d","https://git.kernel.org/stable/c/01363cb3fbd0238ffdeb09f53e9039c9edf8a730","https://git.kernel.org/stable/c/31e62c2ebbfdc3fe3dbdf5e02c92a9dc67087a3a"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-46333","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-46333","identifiers":["CVE-2026-46333"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-83353c603c8b44ff880a9955a737c288","complete":false,"records":13655,"lastAttemptAt":"2026-11-09T18:17:25.0500848+00:00","lastSuccessAt":"2026-11-09T18:17:25.037+00:00","error":"6 identifier lookups failed; latest failures include HTTP 403. Other identifiers were checked independently.","lastVerifiedAt":"2026-11-09T18:17:25.037+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13294,"expectedIdentifiers":13707,"failedIdentifiers":6},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. 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