mirror of
https://github.com/CVEProject/cvelist.git
synced 2025-08-04 08:44:25 +00:00
168 lines
10 KiB
JSON
168 lines
10 KiB
JSON
{
|
|
"data_version": "4.0",
|
|
"data_type": "CVE",
|
|
"data_format": "MITRE",
|
|
"CVE_data_meta": {
|
|
"ID": "CVE-2024-50279",
|
|
"ASSIGNER": "cve@kernel.org",
|
|
"STATE": "PUBLIC"
|
|
},
|
|
"description": {
|
|
"description_data": [
|
|
{
|
|
"lang": "eng",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndm cache: fix out-of-bounds access to the dirty bitset when resizing\n\ndm-cache checks the dirty bits of the cache blocks to be dropped when\nshrinking the fast device, but an index bug in bitset iteration causes\nout-of-bounds access.\n\nReproduce steps:\n\n1. create a cache device of 1024 cache blocks (128 bytes dirty bitset)\n\ndmsetup create cmeta --table \"0 8192 linear /dev/sdc 0\"\ndmsetup create cdata --table \"0 131072 linear /dev/sdc 8192\"\ndmsetup create corig --table \"0 524288 linear /dev/sdc 262144\"\ndd if=/dev/zero of=/dev/mapper/cmeta bs=4k count=1 oflag=direct\ndmsetup create cache --table \"0 524288 cache /dev/mapper/cmeta \\\n/dev/mapper/cdata /dev/mapper/corig 128 2 metadata2 writethrough smq 0\"\n\n2. shrink the fast device to 512 cache blocks, triggering out-of-bounds\n access to the dirty bitset (offset 0x80)\n\ndmsetup suspend cache\ndmsetup reload cdata --table \"0 65536 linear /dev/sdc 8192\"\ndmsetup resume cdata\ndmsetup resume cache\n\nKASAN reports:\n\n BUG: KASAN: vmalloc-out-of-bounds in cache_preresume+0x269/0x7b0\n Read of size 8 at addr ffffc900000f3080 by task dmsetup/131\n\n (...snip...)\n The buggy address belongs to the virtual mapping at\n [ffffc900000f3000, ffffc900000f5000) created by:\n cache_ctr+0x176a/0x35f0\n\n (...snip...)\n Memory state around the buggy address:\n ffffc900000f2f80: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8\n ffffc900000f3000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00\n >ffffc900000f3080: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8\n ^\n ffffc900000f3100: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8\n ffffc900000f3180: f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8 f8\n\nFix by making the index post-incremented."
|
|
}
|
|
]
|
|
},
|
|
"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": "f494a9c6b1b6",
|
|
"version_value": "4fa4feb873ce"
|
|
},
|
|
{
|
|
"version_value": "not down converted",
|
|
"x_cve_json_5_version_data": {
|
|
"versions": [
|
|
{
|
|
"version": "3.13",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "3.13",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "4.19.324",
|
|
"lessThanOrEqual": "4.19.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.4.286",
|
|
"lessThanOrEqual": "5.4.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.230",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.172",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.117",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.61",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.11.8",
|
|
"lessThanOrEqual": "6.11.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
],
|
|
"defaultStatus": "affected"
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
}
|
|
]
|
|
}
|
|
},
|
|
"references": {
|
|
"reference_data": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/4fa4feb873cea0e9d6ff883b37cca6f33169d8b4",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/4fa4feb873cea0e9d6ff883b37cca6f33169d8b4"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8501e38dc9e0060814c4085815fc83da3e6d43bf",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/8501e38dc9e0060814c4085815fc83da3e6d43bf"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ee1f74925717ab36f6a091104c170639501ce818",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/ee1f74925717ab36f6a091104c170639501ce818"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/ff1dd8a04c30e8d4e2fd5c83198ca672eb6a9e7f",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/ff1dd8a04c30e8d4e2fd5c83198ca672eb6a9e7f"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/56507203e1b6127967ec2b51fb0b23a0d4af1334",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/56507203e1b6127967ec2b51fb0b23a0d4af1334"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/e57648ce325fa405fe6bbd0e6a618ced7c301a2d",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/e57648ce325fa405fe6bbd0e6a618ced7c301a2d"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/3b02c40ff10fdf83cc545850db208de855ebe22c",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/3b02c40ff10fdf83cc545850db208de855ebe22c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/792227719725497ce10a8039803bec13f89f8910",
|
|
"refsource": "MISC",
|
|
"name": "https://git.kernel.org/stable/c/792227719725497ce10a8039803bec13f89f8910"
|
|
}
|
|
]
|
|
},
|
|
"generator": {
|
|
"engine": "bippy-8e903de6a542"
|
|
}
|
|
} |