random: sshd: uninitialized urandom read (32 bytes read)
random: sshd: uninitialized urandom read (32 bytes read)
random: crng init done
------------[ cut here ]------------
generic_make_request: Trying to write to read-only block-device loop0 (partno 0)
WARNING: CPU: 0 PID: 6597 at block/blk-core.c:2161 bio_check_ro block/blk-core.c:2158 [inline]
WARNING: CPU: 0 PID: 6597 at block/blk-core.c:2161 generic_make_request_checks+0x114f/0x2140 block/blk-core.c:2263
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 6597 Comm: syz-executor901 Not tainted 4.18.0-rc7-syzkaller #0
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+0x16a/0x22a lib/dump_stack.c:113
 panic+0x1c6/0x37d kernel/panic.c:184
 __warn.cold.8+0x120/0x16c kernel/panic.c:536
 report_bug+0x1a4/0x200 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 do_error_trap+0x1fc/0x4d0 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:992
RIP: 0010:bio_check_ro block/blk-core.c:2158 [inline]
RIP: 0010:generic_make_request_checks+0x114f/0x2140 block/blk-core.c:2263
Code: 48 89 ce 48 89 8d 40 fd ff ff 89 95 38 fd ff ff e8 f6 23 07 00 8b 95 38 fd ff ff 48 c7 c7 40 b3 f6 86 48 89 c6 e8 d1 2e 16 fe <0f> 0b 48 8b 8d 40 fd ff ff e9 7f f1 ff ff 4c 89 ef e8 eb 17 82 fe 
RSP: 0018:ffff8801c5e67650 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff10038bcced3 RCX: 0000000000000000
RDX: 1ffff10038bcce6f RSI: 0000000000000001 RDI: 0000000000000286
RBP: ffff8801c5e67940 R08: fffffbfff0f7067d R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000000 R12: ffff8801d448a140
R13: ffff8801d87702f0 R14: ffff8801d87702c0 R15: ffff8801d87702c8
 generic_make_request+0x22f/0x1720 block/blk-core.c:2387
 submit_bio+0x9f/0x400 block/blk-core.c:2552
 submit_bio_wait+0x126/0x1d0 block/bio.c:1004
 blkdev_issue_flush+0x1e1/0x2c0 block/blk-flush.c:553
 blkdev_fsync+0x70/0xc0 fs/block_dev.c:633
 vfs_fsync_range+0xf0/0x220 fs/sync.c:197
 vfs_fsync fs/sync.c:211 [inline]
 do_fsync+0x38/0x70 fs/sync.c:221
 __do_sys_fsync fs/sync.c:229 [inline]
 __se_sys_fsync fs/sync.c:227 [inline]
 __x64_sys_fsync+0x2e/0x40 fs/sync.c:227
 do_syscall_64+0x183/0x700 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4449b9
Code: e8 fc b2 02 00 48 83 c4 18 c3 0f 1f 80 00 00 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 0f 83 5b d4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 
RSP: 002b:00007ffd986cd488 EFLAGS: 00000246 ORIG_RAX: 000000000000004a
RAX: ffffffffffffffda RBX: 00000000004a60d2 RCX: 00000000004449b9
RDX: 00000000004012a0 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000074780 R08: 0000000001766880 R09: 00000000004002e0
R10: 000000000000000f R11: 0000000000000246 R12: 00000000004022a0
R13: 0000000000402330 R14: 0000000000000000 R15: 0000000000000000
Kernel Offset: disabled
Rebooting in 86400 seconds..