Warning: Permanently added '[localhost]:7387' (ECDSA) to the list of known hosts. 2020/03/05 19:00:59 fuzzer started 2020/03/05 19:01:01 dialing manager at 10.0.2.10:37013 2020/03/05 19:01:02 syscalls: 2989 2020/03/05 19:01:02 code coverage: enabled 2020/03/05 19:01:02 comparison tracing: enabled 2020/03/05 19:01:02 extra coverage: enabled 2020/03/05 19:01:02 setuid sandbox: enabled 2020/03/05 19:01:02 namespace sandbox: enabled 2020/03/05 19:01:02 Android sandbox: /sys/fs/selinux/policy does not exist 2020/03/05 19:01:02 fault injection: enabled 2020/03/05 19:01:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/03/05 19:01:02 net packet injection: enabled 2020/03/05 19:01:02 net device setup: enabled 2020/03/05 19:01:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/03/05 19:01:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 19:02:14 executing program 0: r0 = memfd_create(&(0x7f0000000340)='-B\xd5NI\xc5j\xbappp\xf0\b\x84\xa2m\x00:)\x00\xbb\x8d\xac\xacva}knh#\xcb)\x0f\xc8\xc0:\x9cc\x10d\xee\xa9\x8bCc\xad\x89\x9ck\xde\xc5\xe96\xddU\xa9=\xcdJx\xaa\x8f~\xb90a\xa9\xb2\x04K\x98\x93?\x88Q\xf7\xd6\x1d\xa1\xce\x8b\x19\xea\xef\xe3\xab\xb6\xa5$4\xd6\xfe7\x0f\xe7\xd9$\xce \xabN\xae\xc9\xbd\xd3g@\xe1\'s\x0e\x90\xf2\xcdr\xb8(', 0x0) write(r0, &(0x7f0000000040)="6e00005bb8262d39e7f90f66290b6af85428d04d956e421219cd7536d1", 0x1d) mmap(&(0x7f0000000000/0x2000)=nil, 0x2000, 0x4, 0x11, r0, 0x0) timerfd_settime(0xffffffffffffffff, 0x0, &(0x7f0000000000)={{}, {0x0, 0x1c9c380}}, 0x0) syzkaller login: Resetting rate control (2689917 samples) [ 304.000725][ T2799] sd 0:0:0:0: [sda] tag#29 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT cmd_age=61s [ 304.051071][ T2799] sd 0:0:0:0: [sda] tag#29 CDB: Read(10) 28 00 00 00 08 a0 00 00 08 00 [ 304.092582][ T2799] blk_update_request: I/O error, dev sda, sector 2208 op 0x0:(READ) flags 0x3000 phys_seg 1 prio class 0 [ 304.127946][ T8963] EXT4-fs error (device sda1): ext4_read_inode_bitmap:200: comm syz-fuzzer: Cannot read inode bitmap - block_group = 2, inode_bitmap = 20 [ 304.156848][ T2799] sd 0:0:0:0: [sda] tag#20 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_TIMEOUT cmd_age=56s [ 304.348818][ T2799] sd 0:0:0:0: [sda] tag#20 CDB: Write(10) 2a 00 00 00 08 08 00 00 08 00 [ 304.465397][ T2799] blk_update_request: I/O error, dev sda, sector 2056 op 0x1:(WRITE) flags 0x103000 phys_seg 1 prio class 0 [ 304.588096][ T2799] Buffer I/O error on dev sda1, logical block 1, lost async page write [ 304.781415][ T8963] ------------[ cut here ]------------ [ 304.885261][ T8963] WARNING: CPU: 2 PID: 8963 at fs/buffer.c:1128 mark_buffer_dirty+0x4fa/0x690 [ 304.982509][ T8963] Kernel panic - not syncing: panic_on_warn set ... [ 305.032001][ T8963] CPU: 2 PID: 8963 Comm: syz-fuzzer Not tainted 5.6.0-rc4-syzkaller #0 [ 305.032001][ T8963] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 305.442790][ T8963] Call Trace: [ 305.520340][ T8963] dump_stack+0x188/0x20d [ 305.596935][ T8963] ? mark_buffer_dirty+0x420/0x690 [ 305.596935][ T8963] panic+0x2e3/0x75c [ 305.596935][ T8963] ? add_taint.cold+0x16/0x16 [ 305.596935][ T8963] ? printk+0xba/0xed [ 305.596935][ T8963] ? kmsg_dump_rewind_nolock+0xd9/0xd9 [ 305.596935][ T8963] ? __warn.cold+0x14/0x35 [ 305.596935][ T8963] ? __warn+0xd5/0x1c8 [ 305.596935][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.596935][ T8963] __warn.cold+0x2f/0x35 [ 305.596935][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.596935][ T8963] report_bug+0x27b/0x2f0 [ 305.596935][ T8963] do_error_trap+0x12b/0x220 [ 305.596935][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.596935][ T8963] do_invalid_op+0x32/0x40 [ 305.596935][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.596935][ T8963] invalid_op+0x23/0x30 [ 305.596935][ T8963] RIP: 0010:mark_buffer_dirty+0x4fa/0x690 [ 305.603487][ T8963] Code: 03 80 3c 02 00 0f 85 99 01 00 00 48 8b 3b be 04 00 00 00 e8 08 e5 fc ff 5b 5d 41 5c 41 5d 41 5e e9 8b d6 a9 ff e8 86 d6 a9 ff <0f> 0b e9 4f fb ff ff e8 7a d6 a9 ff 0f 0b e9 73 fb ff ff e8 6e d6 [ 305.603487][ T8963] RSP: 0018:ffffc90001cf7aa8 EFLAGS: 00010293 [ 305.603487][ T8963] RAX: ffff88801d9ccf00 RBX: ffff888024b8edc8 RCX: ffffffff81c83827 [ 305.603487][ T8963] RDX: 0000000000000000 RSI: ffffffff81c83cda RDI: 0000000000000001 [ 305.603487][ T8963] RBP: 0000000000000000 R08: ffff88801d9ccf00 R09: ffffed1004971dba [ 305.603487][ T8963] R10: ffffed1004971db9 R11: ffff888024b8edcf R12: 0000000000000000 [ 305.603487][ T8963] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888023296000 [ 305.603487][ T8963] ? mark_buffer_dirty+0x47/0x690 [ 305.603487][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.603487][ T8963] ? mark_buffer_dirty+0x4fa/0x690 [ 305.603487][ T8963] __ext4_handle_dirty_metadata+0x41d/0x7a0 [ 306.332166][ T8963] __ext4_new_inode+0x2349/0x57e0 [ 307.045886][ T8963] ? ext4_free_inode+0x17e0/0x17e0 [ 307.081674][ T8963] ? dqget+0xff0/0xff0 [ 307.111432][ T8963] ? common_perm+0x278/0x930 [ 307.161878][ T8963] ext4_mkdir+0x38d/0xdc0 [ 307.191408][ T8963] ? ext4_rmdir+0xdd0/0xdd0 [ 307.221687][ T8963] ? generic_permission+0x116/0x520 [ 307.251464][ T8963] ? security_inode_permission+0xc4/0xf0 [ 307.301967][ T8963] vfs_mkdir+0x419/0x670 [ 307.341761][ T8963] do_mkdirat+0x21e/0x280 [ 307.391414][ T8963] ? __ia32_sys_mknod+0xb0/0xb0 [ 307.431532][ T8963] ? trace_hardirqs_off_caller+0x55/0x230 [ 307.471589][ T8963] do_syscall_64+0xf6/0x7d0 [ 307.501835][ T8963] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 307.541571][ T8963] RIP: 0033:0x4afb40 [ 307.561716][ T8963] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30 [ 307.651167][ T8963] RSP: 002b:000000c0002e5880 EFLAGS: 00000206 ORIG_RAX: 0000000000000102 [ 307.711513][ T8963] RAX: ffffffffffffffda RBX: 000000c00002ea00 RCX: 00000000004afb40 [ 307.751189][ T8963] RDX: 00000000000001c0 RSI: 000000c003cc8240 RDI: ffffffffffffff9c [ 307.801344][ T8963] RBP: 000000c0002e58d8 R08: 0000000000000000 R09: 0000000000000000 [ 307.851153][ T8963] R10: 0000000000000000 R11: 0000000000000206 R12: ffffffffffffffff [ 307.881116][ T8963] R13: 0000000000000013 R14: 0000000000000012 R15: 0000000000000100 [ 307.937853][ T8963] Kernel Offset: disabled [ 307.937853][ T8963] Rebooting in 86400 seconds..