{"id":"CVE-2024-43890","revision":"f17d0d9226e14e3fb0852ff3c6c62903","records":[{"revision":"f17d0d9226e14e3fb0852ff3c6c62903","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-43890","aliases":[],"title":"tracing: Fix overflow in get_free_elt()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix overflow in get_free_elt()\n\n\"tracing_map->next_elt\" in get_free_elt() is at risk of overflowing.\n\nOnce it overflows, new elements can still be inserted into the tracing_map\neven though the maximum number of elements (`max_elts`) has been reached.\nContinuing to insert elements after the overflow could result in the\ntracing_map containing \"tracing_map->max_size\" elements, leaving no empty\nentries.\nIf any attempt is made to insert an element into a full tracing_map using\n`__tracing_map_insert()`, it will cause an infinite loop with preemption\ndisabled, leading to a CPU hang problem.\n\nFix this by preventing any further increments to \"tracing_map->next_elt\"\nonce it reaches \"tracing_map->max_elt\".","state":0,"publishedAt":"2024-08-26T10:10:43.547+00:00","modifiedAt":"2026-10-15T00:49:02.64+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                        \"kernel/trace/tracing_map.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"302ceb625d7b990db205a15e371f9a71238de91c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"eb223bf01e688dfe37e813c8988ee11c8c9f8d0a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"cd10d186a5409a1fe6e976df82858e9773a698da\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"788ea62499b3c18541fd6d621964d8fafbc4aec5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"a172c7b22bc2feaf489cfc6d6865f7237134fdf8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"236bb4690773ab6869b40bedc7bc8d889e36f9d6\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"08d43a5fa063e03c860f2f391a30c388bcbc948e\",\n                            \"lessThan\": \"bcf86c01ca4676316557dd482c8416ece8c2e143\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\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                        \"kernel/trace/tracing_map.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.7\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.7\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"4.19.320\",\n                            \"lessThanOrEqual\": \"4.19.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.4.282\",\n                            \"lessThanOrEqual\": \"5.4.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.224\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.165\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.105\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.46\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.10.5\",\n                            \"lessThanOrEqual\": \"6.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.11\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/302ceb625d7b990db205a15e371f9a71238de91c","https://git.kernel.org/stable/c/d3e4dbc2858fe85d1dbd2e72a9fc5dea988b5c18","https://git.kernel.org/stable/c/eb223bf01e688dfe37e813c8988ee11c8c9f8d0a","https://git.kernel.org/stable/c/cd10d186a5409a1fe6e976df82858e9773a698da","https://git.kernel.org/stable/c/788ea62499b3c18541fd6d621964d8fafbc4aec5","https://git.kernel.org/stable/c/a172c7b22bc2feaf489cfc6d6865f7237134fdf8","https://git.kernel.org/stable/c/236bb4690773ab6869b40bedc7bc8d889e36f9d6","https://git.kernel.org/stable/c/bcf86c01ca4676316557dd482c8416ece8c2e143"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-43890","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-43890","identifiers":["CVE-2024-43890"]},"retained":false,"historicalAffected":[]}],"coverage":[]}