{"id":"DEBIAN-CVE-2023-54226","details":"In the Linux kernel, the following vulnerability has been resolved:  af_unix: Fix data races around sk-\u003esk_shutdown.  KCSAN found a data race around sk-\u003esk_shutdown where unix_release_sock() and unix_shutdown() update it under unix_state_lock(), OTOH unix_poll() and unix_dgram_poll() read it locklessly.  We need to annotate the writes and reads with WRITE_ONCE() and READ_ONCE().  BUG: KCSAN: data-race in unix_poll / unix_release_sock  write to 0xffff88800d0f8aec of 1 bytes by task 264 on cpu 0:  unix_release_sock+0x75c/0x910 net/unix/af_unix.c:631  unix_release+0x59/0x80 net/unix/af_unix.c:1042  __sock_release+0x7d/0x170 net/socket.c:653  sock_close+0x19/0x30 net/socket.c:1397  __fput+0x179/0x5e0 fs/file_table.c:321  ____fput+0x15/0x20 fs/file_table.c:349  task_work_run+0x116/0x1a0 kernel/task_work.c:179  resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]  exit_to_user_mode_loop kernel/entry/common.c:171 [inline]  exit_to_user_mode_prepare+0x174/0x180 kernel/entry/common.c:204  __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]  syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:297  do_syscall_64+0x4b/0x90 arch/x86/entry/common.c:86  entry_SYSCALL_64_after_hwframe+0x72/0xdc  read to 0xffff88800d0f8aec of 1 bytes by task 222 on cpu 1:  unix_poll+0xa3/0x2a0 net/unix/af_unix.c:3170  sock_poll+0xcf/0x2b0 net/socket.c:1385  vfs_poll include/linux/poll.h:88 [inline]  ep_item_poll.isra.0+0x78/0xc0 fs/eventpoll.c:855  ep_send_events fs/eventpoll.c:1694 [inline]  ep_poll fs/eventpoll.c:1823 [inline]  do_epoll_wait+0x6c4/0xea0 fs/eventpoll.c:2258  __do_sys_epoll_wait fs/eventpoll.c:2270 [inline]  __se_sys_epoll_wait fs/eventpoll.c:2265 [inline]  __x64_sys_epoll_wait+0xcc/0x190 fs/eventpoll.c:2265  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+0x72/0xdc  value changed: 0x00 -\u003e 0x03  Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 222 Comm: dbus-broker Not tainted 6.3.0-rc7-02330-gca6270c12e20 #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014","modified":"2026-09-15T08:47:41.128170524Z","published":"2025-12-30T13:16:10.987Z","upstream":["CVE-2023-54226"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2023-54226"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.1.37-1"}]}],"versions":["6.1.27-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54226.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.3.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54226.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.3.7-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-54226.json"}}],"schema_version":"1.9.0"}