------------[ cut here ]------------ Trying to write to read-only block-device loop5 (partno 0) WARNING: CPU: 0 PID: 408 at block/blk-core.c:705 bio_check_ro block/blk-core.c:705 [inline] WARNING: CPU: 0 PID: 408 at block/blk-core.c:705 submit_bio_checks+0x1577/0x18d0 block/blk-core.c:833 Modules linked in: CPU: 0 PID: 408 Comm: syz-executor.5 Not tainted 5.10.56 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:bio_check_ro block/blk-core.c:705 [inline] RIP: 0010:submit_bio_checks+0x1577/0x18d0 block/blk-core.c:833 Code: 03 00 00 45 8b a4 24 64 05 00 00 48 89 ef 48 8d 74 24 50 e8 6b 36 fe ff 48 c7 c7 a0 51 3a 84 48 89 c6 44 89 e2 e8 18 ca d3 01 <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 80 3c 02 RSP: 0018:ffff888041b57a10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 1ffff1100836af48 RCX: 0000000000000000 RDX: ffff888015a33280 RSI: ffffffff812930d3 RDI: ffffed100836af34 RBP: ffff8880176ac700 R08: 0000000000000001 R09: ffff88806ce2facf R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800d763c50 R14: ffff8880176ac710 R15: ffff8880176ac708 FS: 0000000001991400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcf398dff8 CR3: 0000000041b4c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: submit_bio_noacct+0x7a/0xce0 block/blk-core.c:1045 submit_bio+0xf3/0x4e0 block/blk-core.c:1130 submit_bh_wbc.constprop.0+0x580/0x770 fs/buffer.c:3054 submit_bh fs/buffer.c:3060 [inline] __sync_dirty_buffer+0x16a/0x3f0 fs/buffer.c:3155 ext4_commit_super+0x83d/0xc60 fs/ext4/super.c:5561 ext4_put_super+0x205/0xf90 fs/ext4/super.c:1211 generic_shutdown_super+0x142/0x370 fs/super.c:464 kill_block_super+0x9d/0xf0 fs/super.c:1446 deactivate_locked_super+0x99/0x160 fs/super.c:335 deactivate_super+0xad/0xd0 fs/super.c:366 cleanup_mnt+0x396/0x500 fs/namespace.c:1118 task_work_run+0xe2/0x1a0 kernel/task_work.c:151 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:164 [inline] exit_to_user_mode_prepare+0x155/0x160 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x38/0x230 kernel/entry/common.c:266 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x467a67 Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffea169fe08 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000029 RCX: 0000000000467a67 RDX: 00007ffea169feda RSI: 0000000000000002 RDI: 00007ffea169fed0 RBP: 00007ffea169fed0 R08: 00000000ffffffff R09: 00007ffea169fca0 R10: 0000000001992b43 R11: 0000000000000246 R12: 00000000004bee70 R13: 00007ffea16a0fa0 R14: 0000000001992b00 R15: 00007ffea16a0fe0 irq event stamp: 249765 hardirqs last enabled at (249777): [] console_unlock+0x929/0xb30 kernel/printk/printk.c:2552 hardirqs last disabled at (249800): [] console_unlock+0x835/0xb30 kernel/printk/printk.c:2467 softirqs last enabled at (249798): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (249821): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 3beb0d142bd91e01 ]--- EXT4-fs (loop7): unable to read superblock FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 4550 Comm: syz-executor.1 Tainted: G W 5.10.56 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2814 [inline] slab_alloc mm/slub.c:2897 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902 kmem_cache_zalloc include/linux/slab.h:654 [inline] locks_alloc_lock fs/locks.c:346 [inline] flock_make_lock+0x264/0x470 fs/locks.c:487 __do_sys_flock fs/locks.c:2238 [inline] __se_sys_flock fs/locks.c:2219 [inline] __x64_sys_flock+0xc6/0x360 fs/locks.c:2219 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7818fc8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000049 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f7818fc81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee8fb6e6f R14: 00007f7818fc8300 R15: 0000000000022000 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 4575 Comm: syz-executor.1 Tainted: G W 5.10.56 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 fail_dump lib/fault-inject.c:52 [inline] should_fail.cold+0x5/0xa lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1193 slab_pre_alloc_hook mm/slab.h:515 [inline] slab_alloc_node mm/slub.c:2814 [inline] slab_alloc mm/slub.c:2897 [inline] kmem_cache_alloc+0x5b/0x350 mm/slub.c:2902 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2889 [inline] slab_alloc mm/slub.c:2897 [inline] kmem_cache_alloc+0x159/0x350 mm/slub.c:2902 kmem_cache_zalloc include/linux/slab.h:654 [inline] locks_alloc_lock fs/locks.c:346 [inline] flock_make_lock+0x264/0x470 fs/locks.c:487 __do_sys_flock fs/locks.c:2238 [inline] __se_sys_flock fs/locks.c:2219 [inline] __x64_sys_flock+0xc6/0x360 fs/locks.c:2219 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7818fc8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000049 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f7818fc81d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffee8fb6e6f R14: 00007f7818fc8300 R15: 0000000000022000 EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue