audit: type=1326 audit(1538476992.173:127): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11972 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=202 compat=0 ip=0x457579 code=0x7ffc0000 audit: type=1326 audit(1538476992.173:128): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11972 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=228 compat=0 ip=0x45a3da code=0x7ffc0000 audit: type=1326 audit(1538476992.173:129): auid=4294967295 uid=0 gid=0 ses=4294967295 subj==unconfined pid=11972 comm="syz-executor2" exe="/root/syz-executor2" sig=0 arch=c000003e syscall=53 compat=0 ip=0x457579 code=0x7ffc0000 WARNING: CPU: 1 PID: 11938 at fs/ext4/page-io.c:206 ext4_add_complete_io fs/ext4/page-io.c:206 [inline] WARNING: CPU: 1 PID: 11938 at fs/ext4/page-io.c:206 ext4_put_io_end_defer+0x43c/0x560 fs/ext4/page-io.c:269 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 11938 Comm: syz-executor3 Not tainted 4.19.0-rc6-next-20181002+ #85 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1d3/0x2c4 lib/dump_stack.c:113 panic+0x238/0x4e7 kernel/panic.c:184 __warn.cold.8+0x163/0x1ba kernel/panic.c:536 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969 RIP: 0010:ext4_add_complete_io fs/ext4/page-io.c:206 [inline] RIP: 0010:ext4_put_io_end_defer+0x43c/0x560 fs/ext4/page-io.c:269 Code: 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 2a 01 00 00 49 83 bf e0 02 00 00 00 0f 84 d8 fd ff ff e8 14 51 5c ff <0f> 0b e9 cc fd ff ff e8 78 3f a0 ff e9 81 fc ff ff 48 89 b5 30 ff RSP: 0018:ffff8801daf07108 EFLAGS: 00010006 RAX: ffff8801ce0045c0 RBX: ffff8801cc65bf00 RCX: ffffffff82211907 RDX: 0000000000010000 RSI: ffffffff82211c2c RDI: ffff8801c944ce60 RBP: ffff8801daf071f8 R08: ffff8801ce0045c0 R09: ffffed00398cb7e5 R10: ffffed00398cb7e5 R11: ffff8801cc65bf2f R12: 1ffff1003b5e0e26 R13: ffff8801810051f0 R14: ffff8801daf071d0 R15: ffff8801c944cb80 ext4_end_bio+0x243/0x6e0 fs/ext4/page-io.c:335 bio_endio+0x5ca/0xb60 block/bio.c:1775 req_bio_endio block/blk-core.c:278 [inline] blk_update_request+0x3b8/0xcb0 block/blk-core.c:3075 scsi_end_request+0xde/0x860 drivers/scsi/scsi_lib.c:673 scsi_io_completion+0x2ce/0x1ca0 drivers/scsi/scsi_lib.c:1093 scsi_finish_command+0x579/0x970 drivers/scsi/scsi.c:248 scsi_softirq_done+0x465/0x520 drivers/scsi/scsi_lib.c:1737 __blk_mq_complete_request block/blk-mq.c:586 [inline] blk_mq_complete_request+0x2c2/0x550 block/blk-mq.c:623 scsi_mq_done+0x108/0x460 drivers/scsi/scsi_lib.c:2048 virtscsi_complete_cmd+0x573/0x740 drivers/scsi/virtio_scsi.c:207 virtscsi_vq_done+0xcb/0x180 drivers/scsi/virtio_scsi.c:223 virtscsi_req_done+0xa7/0xd0 drivers/scsi/virtio_scsi.c:238 vring_interrupt+0x128/0x170 drivers/virtio/virtio_ring.c:950 __handle_irq_event_percpu+0x1e1/0xaf0 kernel/irq/handle.c:149 handle_irq_event_percpu+0xa0/0x1d0 kernel/irq/handle.c:189 handle_irq_event+0xa7/0x135 kernel/irq/handle.c:206 handle_edge_irq+0x227/0x880 kernel/irq/chip.c:791 generic_handle_irq_desc include/linux/irqdesc.h:154 [inline] handle_irq+0x252/0x3d8 arch/x86/kernel/irq_64.c:78 do_IRQ+0x98/0x1c0 arch/x86/kernel/irq.c:246 common_interrupt+0xf/0xf arch/x86/entry/entry_64.S:582 RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:167 [inline] RIP: 0010:arch_atomic_sub_return arch/x86/include/asm/atomic.h:179 [inline] RIP: 0010:atomic_sub_return include/asm-generic/atomic-instrumented.h:306 [inline] RIP: 0010:queued_read_unlock include/asm-generic/qrwlock.h:115 [inline] RIP: 0010:do_raw_read_unlock+0x48/0x60 kernel/locking/spinlock_debug.c:173 Code: b6 04 02 84 c0 74 04 3c 03 7e 30 81 7b 08 ed 1e af de 75 19 be 04 00 00 00 48 89 df e8 31 59 60 00 b8 00 fe ff ff f0 0f c1 03 <5b> 5d c3 e8 80 60 29 02 85 c0 74 de e9 5e 08 00 00 e8 b2 69 60 00 RSP: 0018:ffff88018d786f88 EFLAGS: 00000247 ORIG_RAX: ffffffffffffffdb RAX: 0000000000000200 RBX: ffff8801c9f705e8 RCX: ffffffff8160f1df RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8801c9f705e8 RBP: ffff88018d786f90 R08: ffffed00393ee0be R09: ffffed00393ee0bd R10: ffffed00393ee0bd R11: ffff8801c9f705eb R12: ffff8801ce0045c0 R13: 0000000000000000 R14: ffff8801c9f705c0 R15: dffffc0000000000 __raw_read_unlock include/linux/rwlock_api_smp.h:226 [inline] _raw_read_unlock+0x22/0x50 kernel/locking/spinlock.c:248 start_this_handle+0x55e/0x1250 fs/jbd2/transaction.c:382 jbd2__journal_start+0x3c9/0xa80 fs/jbd2/transaction.c:439 __ext4_journal_start_sb+0x1a0/0x5f0 fs/ext4/ext4_jbd2.c:81 __ext4_journal_start fs/ext4/ext4_jbd2.h:311 [inline] ext4_da_write_begin+0x5d1/0x12c0 fs/ext4/inode.c:3059 generic_perform_write+0x3aa/0x6a0 mm/filemap.c:3050 __generic_file_write_iter+0x26e/0x630 mm/filemap.c:3175 ext4_file_write_iter+0x390/0x1420 fs/ext4/file.c:266 call_write_iter include/linux/fs.h:1844 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6b8/0x9f0 fs/read_write.c:487 vfs_write+0x1fc/0x560 fs/read_write.c:549 ksys_write+0x101/0x260 fs/read_write.c:598 __do_sys_write fs/read_write.c:610 [inline] __se_sys_write fs/read_write.c:607 [inline] __x64_sys_write+0x73/0xb0 fs/read_write.c:607 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457579 Code: 1d 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 eb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb3ac899c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579 RDX: 00000000fffffef6 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 000000000072bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb3ac89a6d4 R13: 00000000004c553b R14: 00000000004d8e50 R15: 00000000ffffffff Shutting down cpus with NMI Kernel Offset: disabled Rebooting in 86400 seconds..