cvelist/2024/42xxx/CVE-2024-42161.json
2024-07-30 08:01:06 +00:00

136 lines
7.3 KiB
JSON

{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-42161",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Avoid uninitialized value in BPF_CORE_READ_BITFIELD\n\n[Changes from V1:\n - Use a default branch in the switch statement to initialize `val'.]\n\nGCC warns that `val' may be used uninitialized in the\nBPF_CRE_READ_BITFIELD macro, defined in bpf_core_read.h as:\n\n\t[...]\n\tunsigned long long val;\t\t\t\t\t\t \\\n\t[...]\t\t\t\t\t\t\t\t \\\n\tswitch (__CORE_RELO(s, field, BYTE_SIZE)) {\t\t\t \\\n\tcase 1: val = *(const unsigned char *)p; break;\t\t\t \\\n\tcase 2: val = *(const unsigned short *)p; break;\t\t \\\n\tcase 4: val = *(const unsigned int *)p; break;\t\t\t \\\n\tcase 8: val = *(const unsigned long long *)p; break;\t\t \\\n } \t\t\t\t\t\t\t \\\n\t[...]\n\tval;\t\t\t\t\t\t\t\t \\\n\t}\t\t\t\t\t\t\t\t \\\n\nThis patch adds a default entry in the switch statement that sets\n`val' to zero in order to avoid the warning, and random values to be\nused in case __builtin_preserve_field_info returns unexpected values\nfor BPF_FIELD_BYTE_SIZE.\n\nTested in bpf-next master.\nNo regressions."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "1da177e4c3f4",
"version_value": "b694989bb13e"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "5.10.222",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.163",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
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},
{
"version": "6.1.98",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
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},
{
"version": "6.6.39",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
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},
{
"version": "6.9.9",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
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},
{
"version": "6.10",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
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},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/b694989bb13ed5f166e633faa1eb0f21c6d261a6",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/b694989bb13ed5f166e633faa1eb0f21c6d261a6"
},
{
"url": "https://git.kernel.org/stable/c/3364c2ed1c241989847f19cf83e3db903ce689e3",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/3364c2ed1c241989847f19cf83e3db903ce689e3"
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{
"url": "https://git.kernel.org/stable/c/a21d76bd0b0d39518e9a4c19f6cf7c042a974aff",
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"name": "https://git.kernel.org/stable/c/a21d76bd0b0d39518e9a4c19f6cf7c042a974aff"
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{
"url": "https://git.kernel.org/stable/c/7e5471b5efebc30dd0bc035cda86693a5c73d45f",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/7e5471b5efebc30dd0bc035cda86693a5c73d45f"
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{
"url": "https://git.kernel.org/stable/c/ff941a8449e712eaf7efca1a13bfb9afd3d99fc2",
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"name": "https://git.kernel.org/stable/c/ff941a8449e712eaf7efca1a13bfb9afd3d99fc2"
},
{
"url": "https://git.kernel.org/stable/c/009367099eb61a4fc2af44d4eb06b6b4de7de6db",
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"name": "https://git.kernel.org/stable/c/009367099eb61a4fc2af44d4eb06b6b4de7de6db"
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