{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-50163","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-10-21T19:36:19.961Z","datePublished":"2024-11-07T09:31:40.146Z","dateUpdated":"2025-11-03T22:26:20.591Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T09:47:39.075Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Make sure internal and UAPI bpf_redirect flags don't overlap\n\nThe bpf_redirect_info is shared between the SKB and XDP redirect paths,\nand the two paths use the same numeric flag values in the ri->flags\nfield (specifically, BPF_F_BROADCAST == BPF_F_NEXTHOP). This means that\nif skb bpf_redirect_neigh() is used with a non-NULL params argument and,\nsubsequently, an XDP redirect is performed using the same\nbpf_redirect_info struct, the XDP path will get confused and end up\ncrashing, which syzbot managed to trigger.\n\nWith the stack-allocated bpf_redirect_info, the structure is no longer\nshared between the SKB and XDP paths, so the crash doesn't happen\nanymore. However, different code paths using identically-numbered flag\nvalues in the same struct field still seems like a bit of a mess, so\nthis patch cleans that up by moving the flag definitions together and\nredefining the three flags in BPF_F_REDIRECT_INTERNAL to not overlap\nwith the flags used for XDP. It also adds a BUILD_BUG_ON() check to make\nsure the overlap is not re-introduced by mistake."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/uapi/linux/bpf.h","net/core/filter.c"],"versions":[{"version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","lessThan":"4e1e428533845d48828bd3875c0e92e8565b9962","status":"affected","versionType":"git"},{"version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","lessThan":"314dbee9fe4f5cee36435465de52c988d7caa466","status":"affected","versionType":"git"},{"version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","lessThan":"0fca5ed4be8e8bfbfb9bd97845af596bab7192d3","status":"affected","versionType":"git"},{"version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","lessThan":"cec288e05ceac9a0d3a3a1fd279534b11844c826","status":"affected","versionType":"git"},{"version":"e624d4ed4aa8cc3c69d1359b0aaea539203ed266","lessThan":"09d88791c7cd888d5195c84733caf9183dcfbd16","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/uapi/linux/bpf.h","net/core/filter.c"],"versions":[{"version":"5.14","status":"affected"},{"version":"0","lessThan":"5.14","status":"unaffected","versionType":"semver"},{"version":"5.15.170","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.115","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.59","lessThanOrEqual":"6.6.*","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":"5.14","versionEndExcluding":"5.15.170"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.1.115"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.6.59"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.11.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.14","versionEndExcluding":"6.12"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/4e1e428533845d48828bd3875c0e92e8565b9962"},{"url":"https://git.kernel.org/stable/c/314dbee9fe4f5cee36435465de52c988d7caa466"},{"url":"https://git.kernel.org/stable/c/0fca5ed4be8e8bfbfb9bd97845af596bab7192d3"},{"url":"https://git.kernel.org/stable/c/cec288e05ceac9a0d3a3a1fd279534b11844c826"},{"url":"https://git.kernel.org/stable/c/09d88791c7cd888d5195c84733caf9183dcfbd16"}],"title":"bpf: Make sure internal and UAPI bpf_redirect flags don't overlap","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-2024-50163","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T20:20:08.619838Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T20:27:11.921Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2025-11-03T22:26:20.591Z"}}]}}