| { |
| "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: Zero former ARG_PTR_TO_{LONG,INT} args in case of error\n\nFor all non-tracing helpers which formerly had ARG_PTR_TO_{LONG,INT} as input\narguments, zero the value for the case of an error as otherwise it could leak\nmemory. For tracing, it is not needed given CAP_PERFMON can already read all\nkernel memory anyway hence bpf_get_func_arg() and bpf_get_func_ret() is skipped\nin here.\n\nAlso, the MTU helpers mtu_len pointer value is being written but also read.\nTechnically, the MEM_UNINIT should not be there in order to always force init.\nRemoving MEM_UNINIT needs more verifier rework though: MEM_UNINIT right now\nimplies two things actually: i) write into memory, ii) memory does not have\nto be initialized. If we lift MEM_UNINIT, it then becomes: i) read into memory,\nii) memory must be initialized. This means that for bpf_*_check_mtu() we're\nreadding the issue we're trying to fix, that is, it would then be able to\nwrite back into things like .rodata BPF maps. Follow-up work will rework the\nMEM_UNINIT semantics such that the intent can be better expressed. For now\njust clear the *mtu_len on error path which can be lifted later again." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "kernel/bpf/helpers.c", |
| "kernel/bpf/syscall.c", |
| "net/core/filter.c" |
| ], |
| "versions": [ |
| { |
| "version": "d7a4cb9b6705a89937d12c8158a35a3145dc967a", |
| "lessThan": "8397bf78988f3ae9dbebb0200189a62a57264980", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d7a4cb9b6705a89937d12c8158a35a3145dc967a", |
| "lessThan": "a634fa8e480ac2423f86311a602f6295df2c8ed0", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d7a4cb9b6705a89937d12c8158a35a3145dc967a", |
| "lessThan": "599d15b6d03356a97bff7a76155c5604c42a2962", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d7a4cb9b6705a89937d12c8158a35a3145dc967a", |
| "lessThan": "594a9f5a8d2de2573a856e506f77ba7dd2cefc6a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "d7a4cb9b6705a89937d12c8158a35a3145dc967a", |
| "lessThan": "4b3786a6c5397dc220b1483d8e2f4867743e966f", |
| "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/helpers.c", |
| "kernel/bpf/syscall.c", |
| "net/core/filter.c" |
| ], |
| "versions": [ |
| { |
| "version": "5.2", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "5.2", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.1.113", |
| "lessThanOrEqual": "6.1.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.54", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10.13", |
| "lessThanOrEqual": "6.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.2", |
| "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": "5.2", |
| "versionEndExcluding": "6.1.113" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "6.6.54" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "6.10.13" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "6.11.2" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "5.2", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/8397bf78988f3ae9dbebb0200189a62a57264980" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a634fa8e480ac2423f86311a602f6295df2c8ed0" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/599d15b6d03356a97bff7a76155c5604c42a2962" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/594a9f5a8d2de2573a856e506f77ba7dd2cefc6a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/4b3786a6c5397dc220b1483d8e2f4867743e966f" |
| } |
| ], |
| "title": "bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-47728", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
