{"id":"CVE-2024-57930","summary":"tracing: Have process_string() also allow arrays","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Have process_string() also allow arrays\n\nIn order to catch a common bug where a TRACE_EVENT() TP_fast_assign()\nassigns an address of an allocated string to the ring buffer and then\nreferences it in TP_printk(), which can be executed hours later when the\nstring is free, the function test_event_printk() runs on all events as\nthey are registered to make sure there's no unwanted dereferencing.\n\nIt calls process_string() to handle cases in TP_printk() format that has\n\"%s\". It returns whether or not the string is safe. But it can have some\nfalse positives.\n\nFor instance, xe_bo_move() has:\n\n TP_printk(\"move_lacks_source:%s, migrate object %p [size %zu] from %s to %s device_id:%s\",\n            __entry-\u003emove_lacks_source ? \"yes\" : \"no\", __entry-\u003ebo, __entry-\u003esize,\n            xe_mem_type_to_name[__entry-\u003eold_placement],\n            xe_mem_type_to_name[__entry-\u003enew_placement], __get_str(device_id))\n\nWhere the \"%s\" references into xe_mem_type_to_name[]. This is an array of\npointers that should be safe for the event to access. Instead of flagging\nthis as a bad reference, if a reference points to an array, where the\nrecord field is the index, consider it safe.","modified":"2026-03-20T12:39:57.423261Z","published":"2025-01-21T12:01:27.807Z","related":["MGASA-2025-0030","MGASA-2025-0032"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57930.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3bcdc9039a6e9e6e47ed689a37b8d57894a3c571"},{"type":"WEB","url":"https://git.kernel.org/stable/c/631b1e09e213c86d5a4ce23d45c81af473bb0ac7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92bd18c74624e5eb9f96e70076aa46293f4b626f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a64e5295ebc4afdefe69cdf16cc286a60ff8ba4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afc6717628f959941d7b33728570568b4af1c4b8"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57930.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-57930"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"85d7635d54d75a2589f28583dc17feedc3aa4ad6"},{"fixed":"3bcdc9039a6e9e6e47ed689a37b8d57894a3c571"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f3ff759ec636b4094b8eb2c3801e4e6c97a6b712"},{"fixed":"631b1e09e213c86d5a4ce23d45c81af473bb0ac7"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2f6ad0b613cd45cca48e6eb04f65351db018afb0"},{"fixed":"a64e5295ebc4afdefe69cdf16cc286a60ff8ba4b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"683eccacc02d2eb25d1c34b8fb0363fcc7e08f64"},{"fixed":"92bd18c74624e5eb9f96e70076aa46293f4b626f"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"65a25d9f7ac02e0cf361356e834d1c71d36acca9"},{"fixed":"afc6717628f959941d7b33728570568b4af1c4b8"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-57930.json"}}],"schema_version":"1.7.5"}