general protection fault, maybe for address 0xffffc90003e0fdc8: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 4473 Comm: udevd Not tainted 6.5.0-rc2-syzkaller-00052-gbfa3037d8280 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 RIP: 0010:__wake_up_common+0x13c/0x5a0 kernel/sched/wait.c:107 Code: c6 04 75 6e 49 8d 78 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 1c 03 00 00 48 8b 4c 24 08 4c 89 c7 8b 54 24 10 8b 74 24 04 <41> ff 50 10 85 c0 78 2d 74 11 41 83 e6 01 74 0b 83 6c 24 14 01 0f RSP: 0018:ffffc900031cf790 EFLAGS: 00010046 RAX: 1ffff920007c1fb9 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffc90003e0fdb8 RBP: ffff8880273470d0 R08: ffffc90003e0fdb8 R09: ffffc900031cf830 R10: 0000000000000003 R11: 0000000000094000 R12: ffffc900031cf830 R13: dffffc0000000000 R14: 00000000ffff8880 R15: 816f3352ffff8868 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000fffffffe CR3: 000000000c776000 CR4: 0000000000350ef0 Call Trace: __wake_up_common_lock+0xd6/0x140 kernel/sched/wait.c:138 ep_poll_callback+0x316/0xc10 fs/eventpoll.c:1242 __wake_up_common+0x140/0x5a0 kernel/sched/wait.c:107 __wake_up_common_lock+0xd6/0x140 kernel/sched/wait.c:138 signalfd_notify include/linux/signalfd.h:22 [inline] __send_signal_locked+0x94b/0x11d0 kernel/signal.c:1173 do_send_sig_info kernel/signal.c:1296 [inline] group_send_sig_info+0x2ad/0x310 kernel/signal.c:1446 forget_original_parent kernel/exit.c:709 [inline] exit_notify kernel/exit.c:734 [inline] do_exit+0xd9d/0x2a20 kernel/exit.c:894 do_group_exit+0xd4/0x2a0 kernel/exit.c:1024 get_signal+0x23ea/0x2770 kernel/signal.c:2877 arch_do_signal_or_restart+0x89/0x5f0 arch/x86/kernel/signal.c:308 exit_to_user_mode_loop kernel/entry/common.c:168 [inline] exit_to_user_mode_prepare+0x11f/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f8fae30e3cd Code: Unable to access opcode bytes at 0x7f8fae30e3a3. RSP: 002b:00007ffea9c17ff0 EFLAGS: 00000246 ORIG_RAX: 00000000000000ea RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f8fae30e3cd RDX: 0000000000000006 RSI: 0000000000001179 RDI: 0000000000001179 RBP: 0000000000001179 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000006 R13: 00007ffea9c18200 R14: 0000000000001000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__wake_up_common+0x13c/0x5a0 kernel/sched/wait.c:107 Code: c6 04 75 6e 49 8d 78 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 0f 85 1c 03 00 00 48 8b 4c 24 08 4c 89 c7 8b 54 24 10 8b 74 24 04 <41> ff 50 10 85 c0 78 2d 74 11 41 83 e6 01 74 0b 83 6c 24 14 01 0f RSP: 0018:ffffc900031cf790 EFLAGS: 00010046 RAX: 1ffff920007c1fb9 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000003 RDI: ffffc90003e0fdb8 RBP: ffff8880273470d0 R08: ffffc90003e0fdb8 R09: ffffc900031cf830 R10: 0000000000000003 R11: 0000000000094000 R12: ffffc900031cf830 R13: dffffc0000000000 R14: 00000000ffff8880 R15: 816f3352ffff8868 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000fffffffe CR3: 000000000c776000 CR4: 0000000000350ef0 ---------------- Code disassembly (best guess): 0: c6 04 75 6e 49 8d 78 movb $0x10,0x788d496e(,%rsi,2) 7: 10 8: 48 89 f8 mov %rdi,%rax b: 48 c1 e8 03 shr $0x3,%rax f: 42 80 3c 28 00 cmpb $0x0,(%rax,%r13,1) 14: 0f 85 1c 03 00 00 jne 0x336 1a: 48 8b 4c 24 08 mov 0x8(%rsp),%rcx 1f: 4c 89 c7 mov %r8,%rdi 22: 8b 54 24 10 mov 0x10(%rsp),%edx 26: 8b 74 24 04 mov 0x4(%rsp),%esi * 2a: 41 ff 50 10 call *0x10(%r8) <-- trapping instruction 2e: 85 c0 test %eax,%eax 30: 78 2d js 0x5f 32: 74 11 je 0x45 34: 41 83 e6 01 and $0x1,%r14d 38: 74 0b je 0x45 3a: 83 6c 24 14 01 subl $0x1,0x14(%rsp) 3f: 0f .byte 0xf