FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5326 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: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x40c/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4539 [inline] slab_alloc_node mm/slub.c:4897 [inline] __do_kmalloc_node mm/slub.c:5333 [inline] __kmalloc_noprof+0xfe/0x720 mm/slub.c:5359 _kmalloc_noprof include/linux/slab.h:992 [inline] allocate_probes kernel/tracepoint.c:106 [inline] func_add kernel/tracepoint.c:168 [inline] tracepoint_add_func+0x351/0xa90 kernel/tracepoint.c:301 tracepoint_probe_register_prio kernel/tracepoint.c:475 [inline] tracepoint_probe_register+0x5d/0x90 kernel/tracepoint.c:495 register_trace_block_rq_merge include/trace/events/block.h:325 [inline] blk_register_tracepoints kernel/trace/blktrace.c:1335 [inline] get_probe_ref+0xa9/0x470 kernel/trace/blktrace.c:492 blk_trace_setup+0x379/0x520 kernel/trace/blktrace.c:795 sg_ioctl_common drivers/scsi/sg.c:1115 [inline] sg_ioctl+0xa5d/0x21b0 drivers/scsi/sg.c:1157 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+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8da1d9e019 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:00007f8da2cd2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8da2025fa0 RCX: 00007f8da1d9e019 RDX: 0000200000000100 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f8da2cd3050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f8da2026038 R14: 00007f8da2025fa0 R15: 00007ffdac414ae8 ------------[ cut here ]------------ ret WARNING: kernel/trace/blktrace.c:1336 at blk_register_tracepoints kernel/trace/blktrace.c:1336 [inline], CPU#0: syz.0.0/5326 WARNING: kernel/trace/blktrace.c:1336 at get_probe_ref+0x393/0x470 kernel/trace/blktrace.c:492, CPU#0: syz.0.0/5326 Modules linked in: CPU: 0 UID: 0 PID: 5326 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:1336 [inline] RIP: 0010:get_probe_ref+0x393/0x470 kernel/trace/blktrace.c:492 Code: bc 8e 5b e9 2f cb 04 0a e8 da 3b f7 ff 90 0f 0b 90 e9 e8 fc ff ff e8 cc 3b f7 ff 90 0f 0b 90 e9 07 fd ff ff e8 be 3b f7 ff 90 <0f> 0b 90 e9 26 fd ff ff e8 b0 3b f7 ff 90 0f 0b 90 e9 45 fd ff ff RSP: 0018:ffffc9000e3d7af0 EFLAGS: 00010293 RAX: ffffffff81cfe702 RBX: 00000000fffffff4 RCX: ffff888000fb2540 RDX: 0000000000000000 RSI: 00000000fffffff4 RDI: 0000000000000000 RBP: ffffc9000e3d7d30 R08: ffffc9000e3d7a27 R09: 1ffff92001c7af44 R10: dffffc0000000000 R11: fffff52001c7af45 R12: 1ffff92001c7af68 R13: ffff888000fb256c R14: dffffc0000000000 R15: 0000000000400140 FS: 00007f8da2cd36c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000140 CR3: 00000000126ee000 CR4: 0000000000352ef0 Call Trace: blk_trace_setup+0x379/0x520 kernel/trace/blktrace.c:795 sg_ioctl_common drivers/scsi/sg.c:1115 [inline] sg_ioctl+0xa5d/0x21b0 drivers/scsi/sg.c:1157 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+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8da1d9e019 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:00007f8da2cd2fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f8da2025fa0 RCX: 00007f8da1d9e019 RDX: 0000200000000100 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f8da2cd3050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f8da2026038 R14: 00007f8da2025fa0 R15: 00007ffdac414ae8