R10: ffff888062b8ce40 R11: ffffffff8a741b38 R12: 0000000000000000 R13: 0000000000000004 R14: 0000000000000005 R15: 0000000000000000 generic_make_request: Trying to write to read-only block-device nullb0 (partno 0) WARNING: CPU: 0 PID: 8143 at block/blk-core.c:2180 bio_check_ro block/blk-core.c:2180 [inline] WARNING: CPU: 0 PID: 8143 at block/blk-core.c:2180 generic_make_request_checks+0x1fc5/0x24c0 block/blk-core.c:2285 __do_sys_socketpair net/socket.c:1457 [inline] __se_sys_socketpair net/socket.c:1454 [inline] __x64_sys_socketpair+0x97/0xf0 net/socket.c:1454 Kernel panic - not syncing: panic_on_warn set ... do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a679 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f546eafbc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000035 RAX: ffffffffffffffda RBX: 00007f546eafbc90 RCX: 000000000045a679 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000018 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000180 R11: 0000000000000246 R12: 00007f546eafc6d4 R13: 00000000004c9e95 R14: 00000000004e22a8 R15: 0000000000000003 CPU: 0 PID: 8143 Comm: syz-executor.3 Not tainted 4.19.87-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+0x197/0x210 lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x53 kernel/panic.c:541 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 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:1037 RIP: 0010:bio_check_ro block/blk-core.c:2180 [inline] RIP: 0010:generic_make_request_checks+0x1fc5/0x24c0 block/blk-core.c:2285 kobject: 'loop2' (0000000081927155): kobject_uevent_env Code: 85 1f 04 00 00 45 8b b6 e4 04 00 00 48 8d 73 a0 4c 89 e7 e8 fd 67 06 00 48 c7 c7 a0 8f e8 87 48 89 c6 44 89 f2 e8 d9 42 f2 fd <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 RSP: 0018:ffff888058b7f1e8 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888058b7f2b8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81558bd6 RDI: ffffed100b16fe2f RBP: ffff888058b7f2e0 R08: ffff888098b2e080 R09: ffff888098b2e920 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888094f39080 R13: ffff888094f39088 R14: 0000000000000000 R15: 0000000000000000 generic_make_request+0x24c/0x12d0 block/blk-core.c:2409 submit_bio+0xba/0x480 block/blk-core.c:2573 submit_bh_wbc+0x5dc/0x790 fs/buffer.c:3095 __block_write_full_page+0x76e/0x1010 fs/buffer.c:1766 block_write_full_page+0x21f/0x270 fs/buffer.c:2956 kobject: 'loop2' (0000000081927155): fill_kobj_path: path = '/devices/virtual/block/loop2' blkdev_writepage+0x25/0x30 fs/block_dev.c:581 __writepage+0x62/0xe0 mm/page-writeback.c:2305 kobject: 'loop5' (000000000541cc0b): kobject_uevent_env write_cache_pages+0x8ac/0x1560 mm/page-writeback.c:2240 kobject: 'loop5' (000000000541cc0b): fill_kobj_path: path = '/devices/virtual/block/loop5' generic_writepages mm/page-writeback.c:2329 [inline] generic_writepages+0xe6/0x160 mm/page-writeback.c:2318 blkdev_writepages+0x1e/0x30 fs/block_dev.c:1965 do_writepages+0xf3/0x2a0 mm/page-writeback.c:2344 __filemap_fdatawrite_range+0x28d/0x370 mm/filemap.c:446 __filemap_fdatawrite mm/filemap.c:454 [inline] filemap_fdatawrite mm/filemap.c:459 [inline] filemap_write_and_wait mm/filemap.c:640 [inline] filemap_write_and_wait+0x47/0xd0 mm/filemap.c:635 __sync_blockdev fs/block_dev.c:463 [inline] sync_blockdev fs/block_dev.c:472 [inline] __blkdev_put+0x204/0x810 fs/block_dev.c:1797 blkdev_put+0x98/0x560 fs/block_dev.c:1866 blkdev_close+0x8b/0xb0 fs/block_dev.c:1873 __fput+0x2dd/0x8b0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x145/0x1c0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x994/0x3080 kernel/exit.c:876 do_group_exit+0x135/0x370 kernel/exit.c:979 __do_sys_exit_group kernel/exit.c:990 [inline] __se_sys_exit_group kernel/exit.c:988 [inline] __x64_sys_exit_group+0x44/0x50 kernel/exit.c:988 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a679 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffc293ade48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 000000000045a679 RDX: 0000000000414151 RSI: 0000000000a770d0 RDI: 0000000000000000 RBP: 00000000004bff77 R08: 000000000000000c R09: 00007ffc293adf50 R10: 000000000171d940 R11: 0000000000000246 R12: 000000000075bfc8 R13: 0000000000000004 R14: 0000000000000001 R15: 000000000075bfd4 Kernel Offset: disabled Rebooting in 86400 seconds..