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================================================================== BUG: KCSAN: data-race in __se_sys_io_uring_register / io_sqe_files_unregister read-write to 0xffff888131be68a0 of 4 bytes by task 8244 on cpu 0: io_sqe_files_unregister+0x57/0xb0 io_uring/rsrc.c:814 __io_uring_register io_uring/io_uring.c:4183 [inline] __do_sys_io_uring_register io_uring/io_uring.c:4343 [inline] __se_sys_io_uring_register+0x847/0x1040 io_uring/io_uring.c:4303 __x64_sys_io_uring_register+0x55/0x60 io_uring/io_uring.c:4303 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff888131be68a0 of 4 bytes by task 8243 on cpu 1: __do_sys_io_uring_register io_uring/io_uring.c:4345 [inline] __se_sys_io_uring_register+0xc2c/0x1040 io_uring/io_uring.c:4303 __x64_sys_io_uring_register+0x55/0x60 io_uring/io_uring.c:4303 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0x00000001 -> 0x00000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 8243 Comm: syz-executor.3 Not tainted 6.2.0-syzkaller-12944-ge492250d5252-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/03/01 02:03 | upstream | e492250d5252 | 95aee97a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in __se_sys_io_uring_register / io_sqe_files_unregister |