235 lines
11 KiB
JSON
235 lines
11 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-42063",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2024-07-29T15:50:41.166Z",
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"datePublished": "2024-07-29T15:52:28.533Z",
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"dateUpdated": "2026-05-11T20:26:15.488Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T20:26:15.488Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark bpf prog stack with kmsan_unposion_memory in interpreter mode\n\nsyzbot reported uninit memory usages during map_{lookup,delete}_elem.\n\n==========\nBUG: KMSAN: uninit-value in __dev_map_lookup_elem kernel/bpf/devmap.c:441 [inline]\nBUG: KMSAN: uninit-value in dev_map_lookup_elem+0xf3/0x170 kernel/bpf/devmap.c:796\n__dev_map_lookup_elem kernel/bpf/devmap.c:441 [inline]\ndev_map_lookup_elem+0xf3/0x170 kernel/bpf/devmap.c:796\n____bpf_map_lookup_elem kernel/bpf/helpers.c:42 [inline]\nbpf_map_lookup_elem+0x5c/0x80 kernel/bpf/helpers.c:38\n___bpf_prog_run+0x13fe/0xe0f0 kernel/bpf/core.c:1997\n__bpf_prog_run256+0xb5/0xe0 kernel/bpf/core.c:2237\n==========\n\nThe reproducer should be in the interpreter mode.\n\nThe C reproducer is trying to run the following bpf prog:\n\n 0: (18) r0 = 0x0\n 2: (18) r1 = map[id:49]\n 4: (b7) r8 = 16777216\n 5: (7b) *(u64 *)(r10 -8) = r8\n 6: (bf) r2 = r10\n 7: (07) r2 += -229\n ^^^^^^^^^^\n\n 8: (b7) r3 = 8\n 9: (b7) r4 = 0\n 10: (85) call dev_map_lookup_elem#1543472\n 11: (95) exit\n\nIt is due to the \"void *key\" (r2) passed to the helper. bpf allows uninit\nstack memory access for bpf prog with the right privileges. This patch\nuses kmsan_unpoison_memory() to mark the stack as initialized.\n\nThis should address different syzbot reports on the uninit \"void *key\"\nargument during map_{lookup,delete}_elem."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/core.c"
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],
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"versions": [
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{
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"version": "bd4cf0ed331a275e9bf5a49e6d0fd55dffc551b8",
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"lessThan": "b30f3197a6cd080052d5d4973f9a6b479fd9fff5",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "bd4cf0ed331a275e9bf5a49e6d0fd55dffc551b8",
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"lessThan": "d812ae6e02bd6e6a9cd1fdb09519c2f33e875faf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "bd4cf0ed331a275e9bf5a49e6d0fd55dffc551b8",
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"lessThan": "3189983c26108cf0990e5c46856dc9feb9470d12",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "bd4cf0ed331a275e9bf5a49e6d0fd55dffc551b8",
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"lessThan": "e8742081db7d01f980c6161ae1e8a1dbc1e30979",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/bpf/core.c"
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],
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"versions": [
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{
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"version": "3.15",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "3.15",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.97",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.37",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.9.8",
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"lessThanOrEqual": "6.9.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.10",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.15",
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"versionEndExcluding": "6.1.97"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.15",
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"versionEndExcluding": "6.6.37"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.15",
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"versionEndExcluding": "6.9.8"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.15",
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"versionEndExcluding": "6.10"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/b30f3197a6cd080052d5d4973f9a6b479fd9fff5"
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},
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{
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"url": "https://git.kernel.org/stable/c/d812ae6e02bd6e6a9cd1fdb09519c2f33e875faf"
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},
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{
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"url": "https://git.kernel.org/stable/c/3189983c26108cf0990e5c46856dc9feb9470d12"
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},
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{
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"url": "https://git.kernel.org/stable/c/e8742081db7d01f980c6161ae1e8a1dbc1e30979"
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}
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],
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"title": "bpf: Mark bpf prog stack with kmsan_unposion_memory in interpreter mode",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/b30f3197a6cd080052d5d4973f9a6b479fd9fff5",
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"tags": [
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"x_transferred"
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]
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{
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"url": "https://git.kernel.org/stable/c/d812ae6e02bd6e6a9cd1fdb09519c2f33e875faf",
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"tags": [
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{
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{
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"url": "https://git.kernel.org/stable/c/e8742081db7d01f980c6161ae1e8a1dbc1e30979",
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},
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{
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"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2025-11-03T22:01:03.937Z"
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}
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},
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2024-42063",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2024-09-10T16:20:09.278781Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-09-11T17:33:08.514Z"
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}
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}
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]
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}
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} |