| { |
| "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: 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" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-50161", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
