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cvelist/2024/56xxx/CVE-2024-56643.json
CVE Team 6dc86eab8d
"-Synchronized-Data."
2024-12-29 05:02:20 +00:00

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{
"data_version": "4.0",
"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-56643",
"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndccp: Fix memory leak in dccp_feat_change_recv\n\nIf dccp_feat_push_confirm() fails after new value for SP feature was accepted\nwithout reconciliation ('entry == NULL' branch), memory allocated for that value\nwith dccp_feat_clone_sp_val() is never freed.\n\nHere is the kmemleak stack for this:\n\nunreferenced object 0xffff88801d4ab488 (size 8):\n comm \"syz-executor310\", pid 1127, jiffies 4295085598 (age 41.666s)\n hex dump (first 8 bytes):\n 01 b4 4a 1d 80 88 ff ff ..J.....\n backtrace:\n [<00000000db7cabfe>] kmemdup+0x23/0x50 mm/util.c:128\n [<0000000019b38405>] kmemdup include/linux/string.h:465 [inline]\n [<0000000019b38405>] dccp_feat_clone_sp_val net/dccp/feat.c:371 [inline]\n [<0000000019b38405>] dccp_feat_clone_sp_val net/dccp/feat.c:367 [inline]\n [<0000000019b38405>] dccp_feat_change_recv net/dccp/feat.c:1145 [inline]\n [<0000000019b38405>] dccp_feat_parse_options+0x1196/0x2180 net/dccp/feat.c:1416\n [<00000000b1f6d94a>] dccp_parse_options+0xa2a/0x1260 net/dccp/options.c:125\n [<0000000030d7b621>] dccp_rcv_state_process+0x197/0x13d0 net/dccp/input.c:650\n [<000000001f74c72e>] dccp_v4_do_rcv+0xf9/0x1a0 net/dccp/ipv4.c:688\n [<00000000a6c24128>] sk_backlog_rcv include/net/sock.h:1041 [inline]\n [<00000000a6c24128>] __release_sock+0x139/0x3b0 net/core/sock.c:2570\n [<00000000cf1f3a53>] release_sock+0x54/0x1b0 net/core/sock.c:3111\n [<000000008422fa23>] inet_wait_for_connect net/ipv4/af_inet.c:603 [inline]\n [<000000008422fa23>] __inet_stream_connect+0x5d0/0xf70 net/ipv4/af_inet.c:696\n [<0000000015b6f64d>] inet_stream_connect+0x53/0xa0 net/ipv4/af_inet.c:735\n [<0000000010122488>] __sys_connect_file+0x15c/0x1a0 net/socket.c:1865\n [<00000000b4b70023>] __sys_connect+0x165/0x1a0 net/socket.c:1882\n [<00000000f4cb3815>] __do_sys_connect net/socket.c:1892 [inline]\n [<00000000f4cb3815>] __se_sys_connect net/socket.c:1889 [inline]\n [<00000000f4cb3815>] __x64_sys_connect+0x6e/0xb0 net/socket.c:1889\n [<00000000e7b1e839>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46\n [<0000000055e91434>] entry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nClean up the allocated memory in case of dccp_feat_push_confirm() failure\nand bail out with an error reset code.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller."
}
]
},
"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": "e77b8363b2ea7c0d89919547c1a8b0562f298b57",
"version_value": "623be080ab3c13d71570bd32f7202a8efa8e2252"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "2.6.29",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.29",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.287",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.231",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.174",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.120",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.66",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.5",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.13-rc2",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/623be080ab3c13d71570bd32f7202a8efa8e2252",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/623be080ab3c13d71570bd32f7202a8efa8e2252"
},
{
"url": "https://git.kernel.org/stable/c/c99507fff94b926fc92279c92d80f229c91cb85d",
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"name": "https://git.kernel.org/stable/c/c99507fff94b926fc92279c92d80f229c91cb85d"
},
{
"url": "https://git.kernel.org/stable/c/bc3d4423def1a9412a0ae454cb4477089ab79276",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/bc3d4423def1a9412a0ae454cb4477089ab79276"
},
{
"url": "https://git.kernel.org/stable/c/6ff67909ee2ffad911e3122616df41dee23ff4f6",
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"name": "https://git.kernel.org/stable/c/6ff67909ee2ffad911e3122616df41dee23ff4f6"
},
{
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"name": "https://git.kernel.org/stable/c/d3ec686a369fae5034303061f003cd3f94ddfd23"
},
{
"url": "https://git.kernel.org/stable/c/9ee68b0f23706a77f53c832457b9384178b76421",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/9ee68b0f23706a77f53c832457b9384178b76421"
},
{
"url": "https://git.kernel.org/stable/c/22be4727a8f898442066bcac34f8a1ad0bc72e14",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/22be4727a8f898442066bcac34f8a1ad0bc72e14"
}
]
},
"generator": {
"engine": "bippy-5f407fcff5a0"
}
}
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