RDX: 0000000020000000 RSI: 0000000020000000 RDI: 0000000000003f96 RBP: 00007fdd84ae2ca0 R08: 00000000200000c0 R09: 00000000200000c0 R10: 0000000020000080 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020ff9000 R14: 00000000200000c0 R15: 0000000020000080 general protection fault, probably for non-canonical address 0xdffffc0000000022: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000110-0x0000000000000117] CPU: 1 PID: 10989 Comm: syz-executor.5 Not tainted 5.11.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:io_ring_set_wakeup_flag fs/io_uring.c:6929 [inline] RIP: 0010:io_disable_sqo_submit+0xdb/0x130 fs/io_uring.c:8891 Code: fa 48 c1 ea 03 80 3c 02 00 75 62 48 8b 9b c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 14 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1d 83 RSP: 0018:ffffc9000caefd78 EFLAGS: 00010017 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815976e0 RDX: 0000000000000022 RSI: 0000000000000004 RDI: 0000000000000114 RBP: ffff8880287ad480 R08: 0000000000000001 R09: 0000000000000003 R10: fffff5200195dfa1 R11: 0000000000000001 R12: fffffffffffffff4 R13: 0000000000000001 R14: ffff8880287ad054 R15: ffff8880287ad000 FS: 00007fdd84ae3700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000119c020 CR3: 0000000011235000 CR4: 0000000000350ee0 Call Trace: io_uring_create fs/io_uring.c:9711 [inline] io_uring_setup+0x12b1/0x38e0 fs/io_uring.c:9739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fdd84ae2be8 EFLAGS: 00000206 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 0000000020000000 RCX: 000000000045e219 RDX: 0000000020000000 RSI: 0000000020000000 RDI: 0000000000003f96 RBP: 00007fdd84ae2ca0 R08: 00000000200000c0 R09: 00000000200000c0 R10: 0000000020000080 R11: 0000000000000206 R12: 0000000020000000 R13: 0000000020ff9000 R14: 00000000200000c0 R15: 0000000020000080 Modules linked in: ---[ end trace d4d2031bafeea46c ]--- RIP: 0010:io_ring_set_wakeup_flag fs/io_uring.c:6929 [inline] RIP: 0010:io_disable_sqo_submit+0xdb/0x130 fs/io_uring.c:8891 Code: fa 48 c1 ea 03 80 3c 02 00 75 62 48 8b 9b c0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d bb 14 01 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1d 83 RSP: 0018:ffffc9000caefd78 EFLAGS: 00010017 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff815976e0 RDX: 0000000000000022 RSI: 0000000000000004 RDI: 0000000000000114 RBP: ffff8880287ad480 R08: 0000000000000001 R09: 0000000000000003 R10: fffff5200195dfa1 R11: 0000000000000001 R12: fffffffffffffff4 R13: 0000000000000001 R14: ffff8880287ad054 R15: ffff8880287ad000 FS: 00007fdd84ae3700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000119c020 CR3: 0000000011235000 CR4: 0000000000350ee0