WARNING: CPU: 0 PID: 10752 at block/blk-core.c:855 bio_check_ro block/blk-core.c:852 [inline] WARNING: CPU: 0 PID: 10752 at block/blk-core.c:855 generic_make_request_checks+0x63f/0x17d0 block/blk-core.c:988 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 10752 Comm: syz-executor.2 Not tainted 5.8.0-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+0x1f0/0x31e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:231 __warn+0x227/0x250 kernel/panic.c:600 report_bug+0x1b1/0x2e0 lib/bug.c:198 handle_bug+0x42/0x80 arch/x86/kernel/traps.c:235 exc_invalid_op+0x16/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:540 RIP: 0010:bio_check_ro block/blk-core.c:852 [inline] RIP: 0010:generic_make_request_checks+0x63f/0x17d0 block/blk-core.c:988 Code: ac 05 00 00 4c 89 f8 48 c1 e8 03 8a 04 08 84 c0 0f 85 78 11 00 00 41 8b 17 48 c7 c7 47 6b 14 89 4c 89 f6 31 c0 e8 71 6b bd fd <0f> 0b e9 29 fc ff ff e8 e5 aa eb fd c6 05 d7 36 00 06 01 48 c7 c7 RSP: 0018:ffffc900041bf420 EFLAGS: 00010246 RAX: 50c232aa5b897c00 RBX: 0000000000000001 RCX: ffff888044116180 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffffc900041bf4e0 R08: ffffffff815dd389 R09: ffffed1015d062c0 R10: ffffed1015d062c0 R11: 0000000000000000 R12: ffff88809f7e7b48 R13: 1ffff11013efcf69 R14: ffffc900041bf480 R15: ffff8880a239f5ac generic_make_request+0x36/0xab0 block/blk-core.c:1112 submit_bio+0x1a4/0x620 block/blk-core.c:1275 __block_write_full_page+0x8bb/0x1000 fs/buffer.c:1811 __writepage+0x60/0x110 mm/page-writeback.c:2313 write_cache_pages+0x8bb/0xda0 mm/page-writeback.c:2248 generic_writepages+0x8f/0xd0 mm/page-writeback.c:2339 do_writepages+0xda/0x1f0 mm/page-writeback.c:2354 __filemap_fdatawrite_range+0x2a5/0x350 mm/filemap.c:421 filemap_write_and_wait_range+0xca/0x160 mm/filemap.c:654 filemap_write_and_wait include/linux/fs.h:2765 [inline] __sync_blockdev fs/block_dev.c:490 [inline] sync_blockdev fs/block_dev.c:499 [inline] __blkdev_put+0x111/0x7a0 fs/block_dev.c:1886 blkdev_close+0x7a/0xa0 fs/block_dev.c:1970 __fput+0x2f0/0x750 fs/file_table.c:281 task_work_run+0x137/0x1c0 kernel/task_work.c:135 exit_task_work include/linux/task_work.h:25 [inline] do_exit+0x601/0x1f80 kernel/exit.c:805 do_group_exit+0x161/0x2d0 kernel/exit.c:903 get_signal+0x139b/0x1d30 kernel/signal.c:2743 do_signal+0x33/0x610 arch/x86/kernel/signal.c:810 exit_to_usermode_loop arch/x86/entry/common.c:235 [inline] __prepare_exit_to_usermode+0xd7/0x1e0 arch/x86/entry/common.c:269 do_syscall_64+0x7f/0xe0 arch/x86/entry/common.c:393 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cce9 Code: Bad RIP value. RSP: 002b:00007f08e5d1acf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000078bf08 RCX: 000000000045cce9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000078bf08 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007ffe594ddb3f R14: 00007f08e5d1b9c0 R15: 000000000078bf0c Kernel Offset: disabled Rebooting in 86400 seconds..