------------[ cut here ]------------ generic_make_request: Trying to write to read-only block-device loop5 (partno 0) WARNING: CPU: 1 PID: 6816 at block/blk-core.c:797 bio_check_ro block/blk-core.c:797 [inline] WARNING: CPU: 1 PID: 6816 at block/blk-core.c:797 generic_make_request_checks+0x1d5c/0x2210 block/blk-core.c:902 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 6816 Comm: syz-executor.1 Not tainted 5.4.0-rc8-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+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:bio_check_ro block/blk-core.c:797 [inline] RIP: 0010:generic_make_request_checks+0x1d5c/0x2210 block/blk-core.c:902 Code: 00 00 44 8b ab 3c 05 00 00 48 8d b5 78 ff ff ff 4c 89 f7 e8 c6 87 05 00 48 c7 c7 60 18 e5 87 48 89 c6 44 89 ea e8 7c f9 13 fe <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 80 3c 02 RSP: 0018:ffff8880547eedf0 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff8880a3b7b000 RCX: 0000000000000000 RDX: 0000000000011bf5 RSI: ffffffff815cf766 RDI: ffffed100a8fddb0 RBP: ffff8880547eeef0 R08: ffff8880951ba140 R09: ffffed1015d26159 R10: ffffed1015d26158 R11: ffff8880ae930ac7 R12: ffff8880a8066788 R13: 0000000000000000 R14: ffff8880a8066780 R15: ffff8880a3bd43c0 generic_make_request+0x8f/0xb50 block/blk-core.c:1018 submit_bio+0x113/0x600 block/blk-core.c:1190 submit_bh_wbc+0x6b6/0x900 fs/buffer.c:3095 __block_write_full_page+0x7fe/0x11b0 fs/buffer.c:1767 block_write_full_page+0x21f/0x270 fs/buffer.c:2953 blkdev_writepage+0x25/0x30 fs/block_dev.c:609 __writepage+0x66/0x110 mm/page-writeback.c:2303 write_cache_pages+0x80c/0x13f0 mm/page-writeback.c:2238 generic_writepages mm/page-writeback.c:2329 [inline] generic_writepages+0xed/0x160 mm/page-writeback.c:2318 blkdev_writepages+0x1e/0x30 fs/block_dev.c:2031 do_writepages+0xfa/0x2a0 mm/page-writeback.c:2344 __filemap_fdatawrite_range+0x2bc/0x3b0 mm/filemap.c:421 filemap_write_and_wait_range mm/filemap.c:681 [inline] filemap_write_and_wait_range+0xfc/0x1d0 mm/filemap.c:675 generic_file_read_iter+0x1319/0x2c00 mm/filemap.c:2294 blkdev_read_iter+0x120/0x190 fs/block_dev.c:2010 call_read_iter include/linux/fs.h:1889 [inline] generic_file_splice_read+0x4af/0x800 fs/splice.c:307 do_splice_to+0x127/0x180 fs/splice.c:877 splice_direct_to_actor+0x2d2/0x970 fs/splice.c:954 do_splice_direct+0x1da/0x2a0 fs/splice.c:1063 do_sendfile+0x597/0xd00 fs/read_write.c:1464 __do_compat_sys_sendfile fs/read_write.c:1546 [inline] __se_compat_sys_sendfile fs/read_write.c:1529 [inline] __ia32_compat_sys_sendfile+0x1f1/0x230 fs/read_write.c:1529 do_syscall_32_irqs_on arch/x86/entry/common.c:333 [inline] do_fast_syscall_32+0x27b/0xdb3 arch/x86/entry/common.c:404 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139 RIP: 0023:0xf7faca39 Code: 00 00 00 89 d3 5b 5e 5f 5d c3 b8 80 96 98 00 eb c4 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f5da80cc EFLAGS: 00000296 ORIG_RAX: 00000000000000bb RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000003 RDX: 0000000000000000 RSI: 0000000000080005 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..