================================================================== BUG: KCSAN: data-race in do_mq_timedreceive / do_mq_timedsend write to 0xffff88811473e450 of 8 bytes by task 6628 on cpu 0: do_mq_timedsend+0x30e/0x680 ipc/mqueue.c:1123 __do_sys_mq_timedsend ipc/mqueue.c:1269 [inline] __se_sys_mq_timedsend ipc/mqueue.c:1258 [inline] __x64_sys_mq_timedsend+0xca/0x150 ipc/mqueue.c:1258 x64_sys_call+0x2a68/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:243 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f read to 0xffff88811473e450 of 8 bytes by task 6631 on cpu 1: do_mq_timedreceive+0x205/0x6d0 ipc/mqueue.c:1208 __do_sys_mq_timedreceive ipc/mqueue.c:1283 [inline] __se_sys_mq_timedreceive ipc/mqueue.c:1272 [inline] __x64_sys_mq_timedreceive+0xca/0x150 ipc/mqueue.c:1272 x64_sys_call+0x18f1/0x2dc0 arch/x86/include/generated/asm/syscalls_64.h:244 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xc9/0x1c0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f value changed: 0x0000000000000000 -> 0xffff888117a4b980 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 6631 Comm: syz.1.838 Not tainted 6.13.0-rc1-syzkaller-00316-gb5f217084ab3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 ==================================================================