UDF-fs: error (device loop4): udf_read_tagged: read failed, block=256, location=256 ------------[ cut here ]------------ kernel BUG at fs/buffer.c:2768! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 8017 Comm: syz-executor.4 Not tainted 6.9.0-rc4-syzkaller-g6a71d2909427 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 80401005 (Nzcv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) pc : submit_bh_wbc+0x45c/0x4c8 fs/buffer.c:2768 lr : submit_bh_wbc+0x45c/0x4c8 fs/buffer.c:2768 sp : ffff800099387610 x29: ffff800099387620 x28: 0000000000000001 x27: dfff800000000000 x26: 0000000000000000 x25: 1fffe000182af105 x24: fffffdffc3e90848 x23: ffff0000c1578828 x22: 0000000000000000 x21: 0000000000000000 x20: ffff0000c1578828 x19: 0000000000000004 x18: ffff800099386920 x17: 0000000000033756 x16: ffff800080332544 x15: 0000000000000001 x14: 1fffe000182af111 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 0000000000010134 x9 : ffff800099639000 x8 : 0000000000010135 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000020 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: submit_bh_wbc+0x45c/0x4c8 fs/buffer.c:2768 submit_bh fs/buffer.c:2809 [inline] __bh_read fs/buffer.c:3074 [inline] bh_read_nowait include/linux/buffer_head.h:417 [inline] __block_write_begin_int+0xa44/0x166c fs/buffer.c:2134 __block_write_begin fs/buffer.c:2154 [inline] block_write_begin+0x98/0x11c fs/buffer.c:2213 udf_write_begin+0x184/0x228 fs/udf/inode.c:261 generic_perform_write+0x28c/0x588 mm/filemap.c:3974 __generic_file_write_iter+0xfc/0x204 mm/filemap.c:4069 udf_file_write_iter+0x25c/0x568 fs/udf/file.c:111 call_write_iter include/linux/fs.h:2110 [inline] new_sync_write fs/read_write.c:497 [inline] vfs_write+0x968/0xc3c fs/read_write.c:590 ksys_write+0x15c/0x26c fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __arm64_sys_write+0x7c/0x90 fs/read_write.c:652 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 Code: 17ffffab 97e47b97 d4210000 97e47b95 (d4210000) ---[ end trace 0000000000000000 ]---