FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) ------------[ cut here ]------------ Trying to write to read-only block-device loop5 (partno 0) WARNING: CPU: 1 PID: 90158 at block/blk-core.c:705 bio_check_ro block/blk-core.c:705 [inline] WARNING: CPU: 1 PID: 90158 at block/blk-core.c:705 submit_bio_checks+0x1511/0x1850 block/blk-core.c:833 Modules linked in: CPU: 1 PID: 90158 Comm: syz-executor.5 Not tainted 5.10.60 #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+0x1511/0x1850 block/blk-core.c:833 Code: 02 00 00 45 8b a4 24 a4 05 00 00 48 89 ef 48 8d 74 24 50 e8 f1 41 fe ff 48 c7 c7 40 5a 3a 84 48 89 c6 44 89 e2 e8 8e 85 e7 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:ffff88802f1977d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 1ffff11005e32f01 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff812912c3 RDI: ffffed1005e32eed RBP: ffff8880394e2e00 R08: 0000000000000001 R09: ffff88806cf2fb4f R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88800ef22430 R14: ffff8880394e2e10 R15: ffff8880394e2e08 FS: 00007fb3b111b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056242bec30a8 CR3: 000000001980e000 CR4: 0000000000350ee0 Call Trace: submit_bio_noacct+0x7e/0xcf0 block/blk-core.c:1045 submit_bio+0x2f3/0x4e0 block/blk-core.c:1130 submit_bh_wbc.constprop.0+0x57f/0x770 fs/buffer.c:3054 submit_bh fs/buffer.c:3060 [inline] __sync_dirty_buffer+0x16a/0x3f0 fs/buffer.c:3155 fat_set_state+0x22a/0x310 fs/fat/inode.c:708 fat_fill_super+0x2318/0x3660 fs/fat/inode.c:1884 mount_bdev+0x331/0x3f0 fs/super.c:1419 legacy_get_tree+0x105/0x220 fs/fs_context.c:592 vfs_get_tree+0x8e/0x2f0 fs/super.c:1549 do_new_mount fs/namespace.c:2895 [inline] path_mount+0x66e/0x2080 fs/namespace.c:3225 do_mount fs/namespace.c:3238 [inline] __do_sys_mount fs/namespace.c:3446 [inline] __se_sys_mount fs/namespace.c:3423 [inline] __x64_sys_mount+0x27e/0x300 fs/namespace.c:3423 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x467b2a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 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:00007fb3b111afa8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000080 RCX: 0000000000467b2a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fb3b111b000 RBP: 00007fb3b111b040 R08: 00007fb3b111b040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fb3b111b000 R15: 0000000020011300 irq event stamp: 2087 hardirqs last enabled at (2095): [] console_unlock+0x926/0xb30 kernel/printk/printk.c:2552 hardirqs last disabled at (2340): [] console_unlock+0x832/0xb30 kernel/printk/printk.c:2467 softirqs last enabled at (2402): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (2349): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace ab252ab5b85c3166 ]--- FAT-fs (loop5): error, corrupted directory (invalid entries) FAT-fs (loop5): Filesystem has been set read-only FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): error, corrupted directory (invalid entries) FAT-fs (loop5): Filesystem has been set read-only kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) Bluetooth: hci7: command 0x0406 tx timeout