FAULT_INJECTION: forcing a failure.
name failslab, interval 1, probability 0, space 0, times 1
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 fail_dump lib/fault-inject.c:73 [inline]
 should_fail_ex+0x412/0x560 lib/fault-inject.c:174
 should_failslab+0xa8/0x100 mm/failslab.c:46
 slab_pre_alloc_hook mm/slub.c:4491 [inline]
 slab_alloc_node mm/slub.c:4843 [inline]
 __do_kmalloc_node mm/slub.c:5259 [inline]
 __kmalloc_noprof+0xe8/0x760 mm/slub.c:5272
 kmalloc_noprof include/linux/slab.h:954 [inline]
 allocate_probes kernel/tracepoint.c:106 [inline]
 func_add kernel/tracepoint.c:168 [inline]
 tracepoint_add_func+0x366/0xa50 kernel/tracepoint.c:301
 tracepoint_probe_register_prio kernel/tracepoint.c:473 [inline]
 tracepoint_probe_register+0x5d/0x90 kernel/tracepoint.c:493
 register_trace_block_rq_issue include/trace/events/block.h:252 [inline]
 blk_register_tracepoints kernel/trace/blktrace.c:1333 [inline]
 get_probe_ref+0x7c/0x470 kernel/trace/blktrace.c:492
 blk_trace_setup2 kernel/trace/blktrace.c:830 [inline]
 blk_trace_ioctl+0x77f/0x920 kernel/trace/blktrace.c:933
 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:793
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617eb9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f617fa3bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f617ee15fa0 RCX: 00007f617eb9c799
RDX: 0000200000000240 RSI: 00000000c0c0128e RDI: 0000000000000003
RBP: 00007f617fa3c050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f617ee16038 R14: 00007f617ee15fa0 R15: 00007ffcd978c068
 </TASK>
------------[ cut here ]------------
ret
WARNING: kernel/trace/blktrace.c:1334 at blk_register_tracepoints kernel/trace/blktrace.c:1334 [inline], CPU#0: syz.0.0/5327
WARNING: kernel/trace/blktrace.c:1334 at get_probe_ref+0x385/0x470 kernel/trace/blktrace.c:492, CPU#0: syz.0.0/5327
Modules linked in:
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:blk_register_tracepoints kernel/trace/blktrace.c:1334 [inline]
RIP: 0010:get_probe_ref+0x385/0x470 kernel/trace/blktrace.c:492
Code: 00 01 00 00 e8 7c 8f f7 ff 48 c7 c7 40 c9 7c 8e 5b e9 8f c7 e3 09 e8 6a 8f f7 ff 90 0f 0b 90 e9 e8 fc ff ff e8 5c 8f f7 ff 90 <0f> 0b 90 e9 07 fd ff ff e8 4e 8f f7 ff 90 0f 0b 90 e9 26 fd ff ff
RSP: 0018:ffffc9000c937a90 EFLAGS: 00010293
RAX: ffffffff81ce2144 RBX: 00000000fffffff4 RCX: ffff88803ef58000
RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000
RBP: ffffc9000c937df0 R08: ffffc9000c9379c7 R09: 1ffff92001926f38
R10: dffffc0000000000 R11: fffff52001926f39 R12: dffffc0000000000
R13: ffffc9000c937c60 R14: ffff8880356e8988 R15: 0000000000400140
FS:  00007f617fa3c6c0(0000) GS:ffff88808ca52000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f617f94d9d0 CR3: 0000000042b72000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 blk_trace_setup2 kernel/trace/blktrace.c:830 [inline]
 blk_trace_ioctl+0x77f/0x920 kernel/trace/blktrace.c:933
 blkdev_ioctl+0x4c1/0x740 block/ioctl.c:793
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617eb9c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f617fa3bfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f617ee15fa0 RCX: 00007f617eb9c799
RDX: 0000200000000240 RSI: 00000000c0c0128e RDI: 0000000000000003
RBP: 00007f617fa3c050 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002
R13: 00007f617ee16038 R14: 00007f617ee15fa0 R15: 00007ffcd978c068
 </TASK>