{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-54226", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.502Z", "datePublished": "2025-12-30T12:11:19.522Z", "dateUpdated": "2026-05-11T19:57:53.270Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:57:53.270Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix data races around sk->sk_shutdown.\n\nKCSAN found a data race around sk->sk_shutdown where unix_release_sock()\nand unix_shutdown() update it under unix_state_lock(), OTOH unix_poll()\nand unix_dgram_poll() read it locklessly.\n\nWe need to annotate the writes and reads with WRITE_ONCE() and READ_ONCE().\n\nBUG: KCSAN: data-race in unix_poll / unix_release_sock\n\nwrite to 0xffff88800d0f8aec of 1 bytes by task 264 on cpu 0:\n unix_release_sock+0x75c/0x910 net/unix/af_unix.c:631\n unix_release+0x59/0x80 net/unix/af_unix.c:1042\n __sock_release+0x7d/0x170 net/socket.c:653\n sock_close+0x19/0x30 net/socket.c:1397\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\nread to 0xffff88800d0f8aec of 1 bytes by task 222 on cpu 1:\n unix_poll+0xa3/0x2a0 net/unix/af_unix.c:3170\n sock_poll+0xcf/0x2b0 net/socket.c:1385\n vfs_poll include/linux/poll.h:88 [inline]\n ep_item_poll.isra.0+0x78/0xc0 fs/eventpoll.c:855\n ep_send_events fs/eventpoll.c:1694 [inline]\n ep_poll fs/eventpoll.c:1823 [inline]\n do_epoll_wait+0x6c4/0xea0 fs/eventpoll.c:2258\n __do_sys_epoll_wait fs/eventpoll.c:2270 [inline]\n __se_sys_epoll_wait fs/eventpoll.c:2265 [inline]\n __x64_sys_epoll_wait+0xcc/0x190 fs/eventpoll.c:2265\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\nvalue changed: 0x00 -> 0x03\n\nReported by Kernel Concurrency Sanitizer on:\nCPU: 1 PID: 222 Comm: dbus-broker Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2\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": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1c488f4e95b498c977fbeae784983eb4cf6085e8", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "196528ad484443627779540697f4fb0ef0e01c52", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "8307e372e7445ec7d3cd2ff107ce5078eaa02815", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a41559ae3681975f1ced815d8d4c983b6b938499", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e410895892f99700ce54347d42c8dbe962eea9f4", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "f237f79b63c9242450e6869adcd2c10445859f28", "status": "affected", "versionType": "git" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "e1d09c2c2f5793474556b60f83900e088d0d366d", "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": "2.6.12", "status": "affected" }, { "version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.284", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.244", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.181", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.113", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.30", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.3.4", "lessThanOrEqual": "6.3.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4", "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": "2.6.12", "versionEndExcluding": "4.19.284" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.4.244" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.10.181" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "5.15.113" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.1.30" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.3.4" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.12", "versionEndExcluding": "6.4" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1c488f4e95b498c977fbeae784983eb4cf6085e8" }, { "url": "https://git.kernel.org/stable/c/196528ad484443627779540697f4fb0ef0e01c52" }, { "url": "https://git.kernel.org/stable/c/8307e372e7445ec7d3cd2ff107ce5078eaa02815" }, { "url": "https://git.kernel.org/stable/c/a41559ae3681975f1ced815d8d4c983b6b938499" }, { "url": "https://git.kernel.org/stable/c/e410895892f99700ce54347d42c8dbe962eea9f4" }, { "url": "https://git.kernel.org/stable/c/f237f79b63c9242450e6869adcd2c10445859f28" }, { "url": "https://git.kernel.org/stable/c/e1d09c2c2f5793474556b60f83900e088d0d366d" } ], "title": "af_unix: Fix data races around sk->sk_shutdown.", "x_generator": { "engine": "bippy-1.2.0" } } } }