{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-54006", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:53:46.177Z", "datePublished": "2025-12-24T10:55:40.534Z", "dateUpdated": "2026-05-11T19:53:28.121Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:53:28.121Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix data-race around unix_tot_inflight.\n\nunix_tot_inflight is changed under spin_lock(unix_gc_lock), but\nunix_release_sock() reads it locklessly.\n\nLet's use READ_ONCE() for unix_tot_inflight.\n\nNote that the writer side was marked by commit 9d6d7f1cb67c (\"af_unix:\nannote lockless accesses to unix_tot_inflight & gc_in_progress\")\n\nBUG: KCSAN: data-race in unix_inflight / unix_release_sock\n\nwrite (marked) to 0xffffffff871852b8 of 4 bytes by task 123 on cpu 1:\n unix_inflight+0x130/0x180 net/unix/scm.c:64\n unix_attach_fds+0x137/0x1b0 net/unix/scm.c:123\n unix_scm_to_skb net/unix/af_unix.c:1832 [inline]\n unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1955\n sock_sendmsg_nosec net/socket.c:724 [inline]\n sock_sendmsg+0x148/0x160 net/socket.c:747\n ____sys_sendmsg+0x4e4/0x610 net/socket.c:2493\n ___sys_sendmsg+0xc6/0x140 net/socket.c:2547\n __sys_sendmsg+0x94/0x140 net/socket.c:2576\n __do_sys_sendmsg net/socket.c:2585 [inline]\n __se_sys_sendmsg net/socket.c:2583 [inline]\n __x64_sys_sendmsg+0x45/0x50 net/socket.c:2583\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+0x72/0xdc\n\nread to 0xffffffff871852b8 of 4 bytes by task 4891 on cpu 0:\n unix_release_sock+0x608/0x910 net/unix/af_unix.c:671\n unix_release+0x59/0x80 net/unix/af_unix.c:1058\n __sock_release+0x7d/0x170 net/socket.c:653\n sock_close+0x19/0x30 net/socket.c:1385\n __fput+0x179/0x5e0 fs/file_table.c:321\n ____fput+0x15/0x20 fs/file_table.c:349\n task_work_run+0x116/0x1a0 kernel/task_work.c:179\n resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]\n exit_to_user_mode_loop kernel/entry/common.c:171 [inline]\n exit_to_user_mode_prepare+0x174/0x180 kernel/entry/common.c:204\n __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]\n syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:297\n do_syscall_64+0x4b/0x90 arch/x86/entry/common.c:86\n entry_SYSCALL_64_after_hwframe+0x72/0xdc\n\nvalue changed: 0x00000000 -> 0x00000001\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 0 PID: 4891 Comm: systemd-coredum Not tainted 6.4.0-rc5-01219-gfa0e21fa4443 #5\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/af_unix.c" ], "versions": [ { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "31b46d5e7c4e295bd112960614a66a177a057dca", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "20aa8325464d8905450089eed96ca102a074d853", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "5d91b7891f4a9a9d69d75e9f44ab4bf1f3b11840", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "cf29b42766ad4af2ae6a449f583796951551b48d", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "e5edc6e44a882c0458878ab10eaddfe60ac34e57", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "2d8933ca863e252fb09ad0be483255e3dfeb1f54", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "afc284a4a781defbb12b2a40427fae34c3d20e17", "status": "affected", "versionType": "git" }, { "version": "9305cfa4443dbfb99faf35c5603ec0c0e91b5ef8", "lessThan": "ade32bd8a738d7497ffe9743c46728db26740f78", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "net/unix/af_unix.c" ], "versions": [ { "version": "2.6.24", "status": "affected" }, { "version": "0", "lessThan": "2.6.24", "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": "2.6.24", "versionEndExcluding": "4.14.326" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "4.19.295" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.4.257" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.10.195" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "5.15.132" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.1.54" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.5.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.24", "versionEndExcluding": "6.6" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/31b46d5e7c4e295bd112960614a66a177a057dca" }, { "url": "https://git.kernel.org/stable/c/20aa8325464d8905450089eed96ca102a074d853" }, { "url": "https://git.kernel.org/stable/c/5d91b7891f4a9a9d69d75e9f44ab4bf1f3b11840" }, { "url": "https://git.kernel.org/stable/c/cf29b42766ad4af2ae6a449f583796951551b48d" }, { "url": "https://git.kernel.org/stable/c/e5edc6e44a882c0458878ab10eaddfe60ac34e57" }, { "url": "https://git.kernel.org/stable/c/2d8933ca863e252fb09ad0be483255e3dfeb1f54" }, { "url": "https://git.kernel.org/stable/c/afc284a4a781defbb12b2a40427fae34c3d20e17" }, { "url": "https://git.kernel.org/stable/c/ade32bd8a738d7497ffe9743c46728db26740f78" } ], "title": "af_unix: Fix data-race around unix_tot_inflight.", "x_generator": { "engine": "bippy-1.2.0" } } } }