{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-50161","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T19:36:19.961Z","datePublished":"2024-11-07T09:31:38.118Z","dateUpdated":"2025-10-01T20:27:12.187Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:47:35.386Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check the remaining info_cnt before repeating btf fields\n\nWhen trying to repeat the btf fields for array of nested struct, it\ndoesn't check the remaining info_cnt. The following splat will be\nreported when the value of ret * nelems is greater than BTF_FIELDS_MAX:\n\n  ------------[ cut here ]------------\n  UBSAN: array-index-out-of-bounds in ../kernel/bpf/btf.c:3951:49\n  index 11 is out of range for type 'btf_field_info [11]'\n  CPU: 6 UID: 0 PID: 411 Comm: test_progs ...... 6.11.0-rc4+ #1\n  Tainted: [O]=OOT_MODULE\n  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ...\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x57/0x70\n   dump_stack+0x10/0x20\n   ubsan_epilogue+0x9/0x40\n   __ubsan_handle_out_of_bounds+0x6f/0x80\n   ? kallsyms_lookup_name+0x48/0xb0\n   btf_parse_fields+0x992/0xce0\n   map_create+0x591/0x770\n   __sys_bpf+0x229/0x2410\n   __x64_sys_bpf+0x1f/0x30\n   x64_sys_call+0x199/0x9f0\n   do_syscall_64+0x3b/0xc0\n   entry_SYSCALL_64_after_hwframe+0x4b/0x53\n  RIP: 0033:0x7fea56f2cc5d\n  ......\n   </TASK>\n  ---[ end trace ]---\n\nFix it by checking the remaining info_cnt in btf_repeat_fields() before\nrepeating the btf fields."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/btf.c"],"versions":[{"version":"64e8ee814819f21beeeda00d4119221443d77992","lessThan":"6f957d972feee9b385ea3ae6530310a84e55ba71","status":"affected","versionType":"git"},{"version":"64e8ee814819f21beeeda00d4119221443d77992","lessThan":"797d73ee232dd1833dec4824bc53a22032e97c1c","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/bpf/btf.c"],"versions":[{"version":"6.11","status":"affected"},{"version":"0","lessThan":"6.11","status":"unaffected","versionType":"semver"},{"version":"6.11.6","lessThanOrEqual":"6.11.*","status":"unaffected","versionType":"semver"},{"version":"6.12","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":"6.11","versionEndExcluding":"6.11.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.11","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/6f957d972feee9b385ea3ae6530310a84e55ba71"},{"url":"https://git.kernel.org/stable/c/797d73ee232dd1833dec4824bc53a22032e97c1c"}],"title":"bpf: Check the remaining info_cnt before repeating btf fields","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2024-50161","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:20:20.703840Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","cweId":"CWE-129","description":"CWE-129 Improper Validation of Array Index"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T20:27:12.187Z"}}]}}