general protection fault, probably for non-canonical address 0xdffffc002000002f: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x0000000100000178-0x000000010000017f] CPU: 0 PID: 9949 Comm: syz-executor.3 Not tainted 5.16.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:perf_tp_event_match kernel/events/core.c:9687 [inline] RIP: 0010:perf_tp_event+0x1d5/0xbc0 kernel/events/core.c:9738 Code: 89 85 e8 fd ff ff eb 0f e8 38 2d e0 ff 48 83 eb 60 0f 84 4a 01 00 00 e8 29 2d e0 ff 48 8d bb e0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 94 08 00 00 44 8b bb e0 01 RSP: 0018:ffffc900046ef580 EFLAGS: 00010003 RAX: 000000002000002f RBX: 00000000ffffff9f RCX: 0000000000000000 RDX: ffff8880785c9d00 RSI: ffffffff81977dc7 RDI: 000000010000017f RBP: ffffc900046ef7f0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817bf47d R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880b9c34860 R14: 0000000000000001 R15: 1ffff1101738691d FS: 00005555571b0400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 0000000055b09000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: perf_trace_run_bpf_submit+0x11c/0x210 kernel/events/core.c:9713 perf_trace_sched_switch+0x4a4/0x690 include/trace/events/sched.h:220 __traceiter_sched_switch+0x5f/0xa0 include/trace/events/sched.h:220 trace_sched_switch include/trace/events/sched.h:220 [inline] __schedule+0x1b32/0x4940 kernel/sched/core.c:6250 schedule+0xd2/0x260 kernel/sched/core.c:6326 synchronize_rcu_expedited+0x471/0x620 kernel/rcu/tree_exp.h:852 namespace_unlock+0x1af/0x410 fs/namespace.c:1448 do_umount fs/namespace.c:1671 [inline] path_umount+0x797/0x1260 fs/namespace.c:1753 ksys_umount fs/namespace.c:1776 [inline] __do_sys_umount fs/namespace.c:1781 [inline] __se_sys_umount fs/namespace.c:1779 [inline] __x64_sys_umount+0x159/0x180 fs/namespace.c:1779 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f1ff54ae307 Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc0b708c38 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1ff54ae307 RDX: 00007ffc0b708d0a RSI: 000000000000000a RDI: 00007ffc0b708d00 RBP: 00007ffc0b708d00 R08: 00000000ffffffff R09: 00007ffc0b708ad0 R10: 00005555571b1873 R11: 0000000000000202 R12: 00007f1ff5506172 R13: 00007ffc0b709dc0 R14: 00005555571b1810 R15: 00007ffc0b709e00 Modules linked in: ---[ end trace 4af4ef2afea959f8 ]--- RIP: 0010:perf_tp_event_match kernel/events/core.c:9687 [inline] RIP: 0010:perf_tp_event+0x1d5/0xbc0 kernel/events/core.c:9738 Code: 89 85 e8 fd ff ff eb 0f e8 38 2d e0 ff 48 83 eb 60 0f 84 4a 01 00 00 e8 29 2d e0 ff 48 8d bb e0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e 94 08 00 00 44 8b bb e0 01 RSP: 0018:ffffc900046ef580 EFLAGS: 00010003 RAX: 000000002000002f RBX: 00000000ffffff9f RCX: 0000000000000000 RDX: ffff8880785c9d00 RSI: ffffffff81977dc7 RDI: 000000010000017f RBP: ffffc900046ef7f0 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff817bf47d R11: 0000000000000000 R12: dffffc0000000000 R13: ffff8880b9c34860 R14: 0000000000000001 R15: 1ffff1101738691d FS: 00005555571b0400(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 0000000055b09000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 ---------------- Code disassembly (best guess): 0: 89 85 e8 fd ff ff mov %eax,-0x218(%rbp) 6: eb 0f jmp 0x17 8: e8 38 2d e0 ff callq 0xffe02d45 d: 48 83 eb 60 sub $0x60,%rbx 11: 0f 84 4a 01 00 00 je 0x161 17: e8 29 2d e0 ff callq 0xffe02d45 1c: 48 8d bb e0 01 00 00 lea 0x1e0(%rbx),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 74 08 je 0x3b 33: 3c 03 cmp $0x3,%al 35: 0f 8e 94 08 00 00 jle 0x8cf 3b: 44 rex.R 3c: 8b .byte 0x8b 3d: bb .byte 0xbb 3e: e0 01 loopne 0x41