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vuln-cve/data/2023/53xxx/CVE-2023-53204.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2023-53204",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-09-15T13:59:19.068Z",
"datePublished": "2025-09-15T14:21:32.696Z",
"dateUpdated": "2026-11-05T20:21:07.602Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-23T15:28:14.623Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix data-races around user->unix_inflight.\n\nuser->unix_inflight is changed under spin_lock(unix_gc_lock),\nbut too_many_unix_fds() reads it locklessly.\n\nLet's annotate the write/read accesses to user->unix_inflight.\n\nBUG: KCSAN: data-race in unix_attach_fds / unix_inflight\n\nwrite to 0xffffffff8546f2d0 of 8 bytes by task 44798 on cpu 1:\n unix_inflight+0x157/0x180 net/unix/scm.c:66\n unix_attach_fds+0x147/0x1e0 net/unix/scm.c:123\n unix_scm_to_skb net/unix/af_unix.c:1827 [inline]\n unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950\n unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline]\n unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292\n sock_sendmsg_nosec net/socket.c:725 [inline]\n sock_sendmsg+0x148/0x160 net/socket.c:748\n ____sys_sendmsg+0x4e4/0x610 net/socket.c:2494\n ___sys_sendmsg+0xc6/0x140 net/socket.c:2548\n __sys_sendmsg+0x94/0x140 net/socket.c:2577\n __do_sys_sendmsg net/socket.c:2586 [inline]\n __se_sys_sendmsg net/socket.c:2584 [inline]\n __x64_sys_sendmsg+0x45/0x50 net/socket.c:2584\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nread to 0xffffffff8546f2d0 of 8 bytes by task 44814 on cpu 0:\n too_many_unix_fds net/unix/scm.c:101 [inline]\n unix_attach_fds+0x54/0x1e0 net/unix/scm.c:110\n unix_scm_to_skb net/unix/af_unix.c:1827 [inline]\n unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950\n unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline]\n unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292\n sock_sendmsg_nosec net/socket.c:725 [inline]\n sock_sendmsg+0x148/0x160 net/socket.c:748\n ____sys_sendmsg+0x4e4/0x610 net/socket.c:2494\n ___sys_sendmsg+0xc6/0x140 net/socket.c:2548\n __sys_sendmsg+0x94/0x140 net/socket.c:2577\n __do_sys_sendmsg net/socket.c:2586 [inline]\n __se_sys_sendmsg net/socket.c:2584 [inline]\n __x64_sys_sendmsg+0x45/0x50 net/socket.c:2584\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x6e/0xd8\n\nvalue changed: 0x000000000000000c -> 0x000000000000000d\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 PID: 44814 Comm: systemd-coredum Not tainted 6.4.0-11989-g6843306689af #6\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/unix/scm.c"
],
"versions": [
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "df97b5ea9f3ac9308c3a633524dab382cd59d9e5",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "03d133dfbcec9d439729cc64706c7eb6d1663a24",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "adcf4e069358cdee8593663650ea447215a1c49e",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "b401d7e485b0a234cf8fe9a6ae99dbcd20863138",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "9151ed4b006125cba7c06c79df504340ea4e9386",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "ac92f239a079678a035c0faad9089354a874aede",
"status": "affected",
"versionType": "git"
},
{
"version": "712f4aad406bb1ed67f3f98d04c044191f0ff593",
"lessThan": "0bc36c0650b21df36fbec8136add83936eaf0607",
"status": "affected",
"versionType": "git"
},
{
"version": "a5a6cf8c405e826ff7ed1308dde72560c0ed4854",
"status": "affected",
"versionType": "git"
},
{
"version": "df87da0783c4492b944badfea9d5c3c56b834697",
"status": "affected",
"versionType": "git"
},
{
"version": "3d024dcef2548028e9f9b7876a544e6e0af00175",
"status": "affected",
"versionType": "git"
},
{
"version": "aa51d1c24ec3b6605f7cc7ef500c96cd71d7ef90",
"status": "affected",
"versionType": "git"
},
{
"version": "a5b9e44af8d3edaf49d14a91cc519a9fba439e67",
"status": "affected",
"versionType": "git"
},
{
"version": "dc6b0ec667f67d4768e72c1b7f1bbc14ea52379c",
"status": "affected",
"versionType": "git"
},
{
"version": "9b8b611fe0f86f07a4ff4a5f3bcb0ea7ceb7da3b",
"status": "affected",
"versionType": "git"
},
{
"version": "5e226f9689d90ad8ab21b4a969ae3058777f0aff",
"status": "affected",
"versionType": "git"
},
{
"version": "3.2.78",
"lessThan": "3.3",
"status": "affected",
"versionType": "semver"
},
{
"version": "3.10.96",
"lessThan": "3.11",
"status": "affected",
"versionType": "semver"
},
{
"version": "3.12.57",
"lessThan": "3.13",
"status": "affected",
"versionType": "semver"
},
{
"version": "3.14.60",
"lessThan": "3.15",
"status": "affected",
"versionType": "semver"
},
{
"version": "3.18.27",
"lessThan": "3.19",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.1.17",
"lessThan": "4.2",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.3.5",
"lessThan": "4.4",
"status": "affected",
"versionType": "semver"
},
{
"version": "4.4.1",
"lessThan": "4.5",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/unix/scm.c"
],
"versions": [
{
"version": "4.5",
"status": "affected"
},
{
"version": "0",
"lessThan": "4.5",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.14.326",
"lessThanOrEqual": "4.14.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "4.19.295",
"lessThanOrEqual": "4.19.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.257",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.195",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.132",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.54",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.5.4",
"lessThanOrEqual": "6.5.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "4.14.326"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "4.19.295"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "5.4.257"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "5.10.195"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "5.15.132"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "6.1.54"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "6.5.4"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.5",
"versionEndExcluding": "6.6"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.2.78"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.10.96"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.12.57"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.14.60"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.18.27"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.1.17"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.3.5"
},
{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.4.1"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/df97b5ea9f3ac9308c3a633524dab382cd59d9e5"
},
{
"url": "https://git.kernel.org/stable/c/03d133dfbcec9d439729cc64706c7eb6d1663a24"
},
{
"url": "https://git.kernel.org/stable/c/adcf4e069358cdee8593663650ea447215a1c49e"
},
{
"url": "https://git.kernel.org/stable/c/b401d7e485b0a234cf8fe9a6ae99dbcd20863138"
},
{
"url": "https://git.kernel.org/stable/c/9151ed4b006125cba7c06c79df504340ea4e9386"
},
{
"url": "https://git.kernel.org/stable/c/b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f"
},
{
"url": "https://git.kernel.org/stable/c/ac92f239a079678a035c0faad9089354a874aede"
},
{
"url": "https://git.kernel.org/stable/c/0bc36c0650b21df36fbec8136add83936eaf0607"
}
],
"title": "af_unix: Fix data-races around user->unix_inflight.",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"id": "CVE-2023-53204",
"role": "CISA Coordinator",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-11-05T20:20:30.750540Z"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-11-05T20:21:07.602Z"
}
}
]
}
}
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