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cvelist/2024/36xxx/CVE-2024-36904.json

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"-Synchronized-Data."
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{
"-Synchronized-Data."
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"data_version": "4.0",
"-Synchronized-Data."
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2024-36904",
"-Synchronized-Data."
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"ASSIGNER": "cve@kernel.org",
"STATE": "PUBLIC"
"-Synchronized-Data."
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},
"description": {
"description_data": [
{
"lang": "eng",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntcp: Use refcount_inc_not_zero() in tcp_twsk_unique().\n\nAnderson Nascimento reported a use-after-free splat in tcp_twsk_unique()\nwith nice analysis.\n\nSince commit ec94c2696f0b (\"tcp/dccp: avoid one atomic operation for\ntimewait hashdance\"), inet_twsk_hashdance() sets TIME-WAIT socket's\nsk_refcnt after putting it into ehash and releasing the bucket lock.\n\nThus, there is a small race window where other threads could try to\nreuse the port during connect() and call sock_hold() in tcp_twsk_unique()\nfor the TIME-WAIT socket with zero refcnt.\n\nIf that happens, the refcnt taken by tcp_twsk_unique() is overwritten\nand sock_put() will cause underflow, triggering a real use-after-free\nsomewhere else.\n\nTo avoid the use-after-free, we need to use refcount_inc_not_zero() in\ntcp_twsk_unique() and give up on reusing the port if it returns false.\n\n[0]:\nrefcount_t: addition on 0; use-after-free.\nWARNING: CPU: 0 PID: 1039313 at lib/refcount.c:25 refcount_warn_saturate+0xe5/0x110\nCPU: 0 PID: 1039313 Comm: trigger Not tainted 6.8.6-200.fc39.x86_64 #1\nHardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023\nRIP: 0010:refcount_warn_saturate+0xe5/0x110\nCode: 42 8e ff 0f 0b c3 cc cc cc cc 80 3d aa 13 ea 01 00 0f 85 5e ff ff ff 48 c7 c7 f8 8e b7 82 c6 05 96 13 ea 01 01 e8 7b 42 8e ff <0f> 0b c3 cc cc cc cc 48 c7 c7 50 8f b7 82 c6 05 7a 13 ea 01 01 e8\nRSP: 0018:ffffc90006b43b60 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: ffff888009bb3ef0 RCX: 0000000000000027\nRDX: ffff88807be218c8 RSI: 0000000000000001 RDI: ffff88807be218c0\nRBP: 0000000000069d70 R08: 0000000000000000 R09: ffffc90006b439f0\nR10: ffffc90006b439e8 R11: 0000000000000003 R12: ffff8880029ede84\nR13: 0000000000004e20 R14: ffffffff84356dc0 R15: ffff888009bb3ef0\nFS: 00007f62c10926c0(0000) GS:ffff88807be00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020ccb000 CR3: 000000004628c005 CR4: 0000000000f70ef0\nPKRU: 55555554\nCall Trace:\n <TASK>\n ? refcount_warn_saturate+0xe5/0x110\n ? __warn+0x81/0x130\n ? refcount_warn_saturate+0xe5/0x110\n ? report_bug+0x171/0x1a0\n ? refcount_warn_saturate+0xe5/0x110\n ? handle_bug+0x3c/0x80\n ? exc_invalid_op+0x17/0x70\n ? asm_exc_invalid_op+0x1a/0x20\n ? refcount_warn_saturate+0xe5/0x110\n tcp_twsk_unique+0x186/0x190\n __inet_check_established+0x176/0x2d0\n __inet_hash_connect+0x74/0x7d0\n ? __pfx___inet_check_established+0x10/0x10\n tcp_v4_connect+0x278/0x530\n __inet_stream_connect+0x10f/0x3d0\n inet_stream_connect+0x3a/0x60\n __sys_connect+0xa8/0xd0\n __x64_sys_connect+0x18/0x20\n do_syscall_64+0x83/0x170\n entry_SYSCALL_64_after_hwframe+0x78/0x80\nRIP: 0033:0x7f62c11a885d\nCode: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a3 45 0c 00 f7 d8 64 89 01 48\nRSP: 002b:00007f62c1091e58 EFLAGS: 00000296 ORIG_RAX: 000000000000002a\nRAX: ffffffffffffffda RBX: 0000000020ccb004 RCX: 00007f62c11a885d\nRDX: 0000000000000010 RSI: 0000000020ccb000 RDI: 0000000000000003\nRBP: 00007f62c1091e90 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000296 R12: 00007f62c10926c0\nR13: ffffffffffffff88 R14: 0000000000000000 R15: 00007ffe237885b0\n </TASK>"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "n/a"
}
]
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}
]
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},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Linux",
"product": {
"product_data": [
{
"product_name": "Linux",
"version": {
"version_data": [
{
"version_affected": "<",
"version_name": "ec94c2696f0b",
"version_value": "84546cc1aeeb"
},
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"version": "4.16",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.16",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "4.19.314",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "5.4.276",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "5.10.217",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "5.15.159",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.1.91",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.6.31",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.8.10",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"-Synchronized-Data."
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"versionType": "semver"
"-Synchronized-Data."
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},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
],
"defaultStatus": "affected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://git.kernel.org/stable/c/84546cc1aeeb4df3e444b18a4293c9823f974be9",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/84546cc1aeeb4df3e444b18a4293c9823f974be9"
},
{
"url": "https://git.kernel.org/stable/c/1796ca9c6f5bd50554214053af5f47d112818ee3",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/1796ca9c6f5bd50554214053af5f47d112818ee3"
},
{
"url": "https://git.kernel.org/stable/c/1d9cf07810c30ef7948879567d10fd1f01121d34",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/1d9cf07810c30ef7948879567d10fd1f01121d34"
},
{
"url": "https://git.kernel.org/stable/c/27b0284d8be182a81feb65581ab6a724dfd596e8",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/27b0284d8be182a81feb65581ab6a724dfd596e8"
},
{
"url": "https://git.kernel.org/stable/c/13ed7cdf079686ccd3618335205700c03f6fb446",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/13ed7cdf079686ccd3618335205700c03f6fb446"
},
{
"url": "https://git.kernel.org/stable/c/6e48faad92be13166184d21506e4e54c79c13adc",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/6e48faad92be13166184d21506e4e54c79c13adc"
},
{
"url": "https://git.kernel.org/stable/c/517e32ea0a8c72202d0d8aa8df50a7cd3d6fdefc",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/517e32ea0a8c72202d0d8aa8df50a7cd3d6fdefc"
},
{
"url": "https://git.kernel.org/stable/c/f2db7230f73a80dbb179deab78f88a7947f0ab7e",
"refsource": "MISC",
"name": "https://git.kernel.org/stable/c/f2db7230f73a80dbb179deab78f88a7947f0ab7e"
}
]
},
"generator": {
"-Synchronized-Data."
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"engine": "bippy-9e1c9544281a"
"-Synchronized-Data."
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}
}
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