| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50163", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
