CVE-2023-53204 (GCVE-0-2023-53204)
Vulnerability from cvelistv5
Published
2025-09-15 14:21
Modified
2025-09-15 14:21
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
af_unix: Fix data-races around user->unix_inflight.
user->unix_inflight is changed under spin_lock(unix_gc_lock),
but too_many_unix_fds() reads it locklessly.
Let's annotate the write/read accesses to user->unix_inflight.
BUG: KCSAN: data-race in unix_attach_fds / unix_inflight
write to 0xffffffff8546f2d0 of 8 bytes by task 44798 on cpu 1:
unix_inflight+0x157/0x180 net/unix/scm.c:66
unix_attach_fds+0x147/0x1e0 net/unix/scm.c:123
unix_scm_to_skb net/unix/af_unix.c:1827 [inline]
unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950
unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline]
unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0x148/0x160 net/socket.c:748
____sys_sendmsg+0x4e4/0x610 net/socket.c:2494
___sys_sendmsg+0xc6/0x140 net/socket.c:2548
__sys_sendmsg+0x94/0x140 net/socket.c:2577
__do_sys_sendmsg net/socket.c:2586 [inline]
__se_sys_sendmsg net/socket.c:2584 [inline]
__x64_sys_sendmsg+0x45/0x50 net/socket.c:2584
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
read to 0xffffffff8546f2d0 of 8 bytes by task 44814 on cpu 0:
too_many_unix_fds net/unix/scm.c:101 [inline]
unix_attach_fds+0x54/0x1e0 net/unix/scm.c:110
unix_scm_to_skb net/unix/af_unix.c:1827 [inline]
unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950
unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [inline]
unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292
sock_sendmsg_nosec net/socket.c:725 [inline]
sock_sendmsg+0x148/0x160 net/socket.c:748
____sys_sendmsg+0x4e4/0x610 net/socket.c:2494
___sys_sendmsg+0xc6/0x140 net/socket.c:2548
__sys_sendmsg+0x94/0x140 net/socket.c:2577
__do_sys_sendmsg net/socket.c:2586 [inline]
__se_sys_sendmsg net/socket.c:2584 [inline]
__x64_sys_sendmsg+0x45/0x50 net/socket.c:2584
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x6e/0xd8
value changed: 0x000000000000000c -> 0x000000000000000d
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 44814 Comm: systemd-coredum Not tainted 6.4.0-11989-g6843306689af #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
References
Impacted products
Vendor | Product | Version | |||||||
---|---|---|---|---|---|---|---|---|---|
▼ | Linux | Linux |
Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: 712f4aad406bb1ed67f3f98d04c044191f0ff593 Version: a5a6cf8c405e826ff7ed1308dde72560c0ed4854 Version: df87da0783c4492b944badfea9d5c3c56b834697 Version: 3d024dcef2548028e9f9b7876a544e6e0af00175 Version: aa51d1c24ec3b6605f7cc7ef500c96cd71d7ef90 Version: a5b9e44af8d3edaf49d14a91cc519a9fba439e67 Version: dc6b0ec667f67d4768e72c1b7f1bbc14ea52379c Version: 9b8b611fe0f86f07a4ff4a5f3bcb0ea7ceb7da3b Version: 5e226f9689d90ad8ab21b4a969ae3058777f0aff |
||||||
|
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/unix/scm.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "df97b5ea9f3ac9308c3a633524dab382cd59d9e5", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "03d133dfbcec9d439729cc64706c7eb6d1663a24", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "adcf4e069358cdee8593663650ea447215a1c49e", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "b401d7e485b0a234cf8fe9a6ae99dbcd20863138", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "9151ed4b006125cba7c06c79df504340ea4e9386", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "ac92f239a079678a035c0faad9089354a874aede", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "lessThan": "0bc36c0650b21df36fbec8136add83936eaf0607", "status": "affected", "version": "712f4aad406bb1ed67f3f98d04c044191f0ff593", "versionType": "git" }, { "status": "affected", "version": "a5a6cf8c405e826ff7ed1308dde72560c0ed4854", "versionType": "git" }, { "status": "affected", "version": "df87da0783c4492b944badfea9d5c3c56b834697", "versionType": "git" }, { "status": "affected", "version": "3d024dcef2548028e9f9b7876a544e6e0af00175", "versionType": "git" }, { "status": "affected", "version": "aa51d1c24ec3b6605f7cc7ef500c96cd71d7ef90", "versionType": "git" }, { "status": "affected", "version": "a5b9e44af8d3edaf49d14a91cc519a9fba439e67", "versionType": "git" }, { "status": "affected", "version": "dc6b0ec667f67d4768e72c1b7f1bbc14ea52379c", "versionType": "git" }, { "status": "affected", "version": "9b8b611fe0f86f07a4ff4a5f3bcb0ea7ceb7da3b", "versionType": "git" }, { "status": "affected", "version": "5e226f9689d90ad8ab21b4a969ae3058777f0aff", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/unix/scm.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "4.5" }, { "lessThan": "4.5", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "4.14.*", "status": "unaffected", "version": "4.14.326", "versionType": "semver" }, { "lessThanOrEqual": "4.19.*", "status": "unaffected", "version": "4.19.295", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.257", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.195", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.132", "versionType": "semver" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.54", "versionType": "semver" }, { "lessThanOrEqual": "6.5.*", "status": "unaffected", "version": "6.5.4", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.6", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.14.326", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.19.295", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.257", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.195", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.132", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.54", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.5.4", "versionStartIncluding": "4.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6", "versionStartIncluding": "4.5", "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", "vulnerable": true }, { "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", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.3.5", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.4.1", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix data-races around user-\u003eunix_inflight.\n\nuser-\u003eunix_inflight is changed under spin_lock(unix_gc_lock),\nbut too_many_unix_fds() reads it locklessly.\n\nLet\u0027s annotate the write/read accesses to user-\u003eunix_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 -\u003e 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" } ], "providerMetadata": { "dateUpdated": "2025-09-15T14:21:32.696Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "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-\u003eunix_inflight.", "x_generator": { "engine": "bippy-1.2.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2023-53204", "datePublished": "2025-09-15T14:21:32.696Z", "dateReserved": "2025-09-15T13:59:19.068Z", "dateUpdated": "2025-09-15T14:21:32.696Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2023-53204\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-15T15:15:46.847\",\"lastModified\":\"2025-09-15T15:22:27.090\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\naf_unix: Fix data-races around user-\u003eunix_inflight.\\n\\nuser-\u003eunix_inflight is changed under spin_lock(unix_gc_lock),\\nbut too_many_unix_fds() reads it locklessly.\\n\\nLet\u0027s annotate the write/read accesses to user-\u003eunix_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 -\u003e 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\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/03d133dfbcec9d439729cc64706c7eb6d1663a24\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0bc36c0650b21df36fbec8136add83936eaf0607\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9151ed4b006125cba7c06c79df504340ea4e9386\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ac92f239a079678a035c0faad9089354a874aede\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/adcf4e069358cdee8593663650ea447215a1c49e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b401d7e485b0a234cf8fe9a6ae99dbcd20863138\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b9cdbb38e030fc2fe97fe27b54cbb6b4fbff250f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/df97b5ea9f3ac9308c3a633524dab382cd59d9e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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