loop3: detected capacity change from 0 to 4096 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 Mem abort info: ESR = 0x0000000086000006 EC = 0x21: IABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault user pgtable: 4k pages, 48-bit VAs, pgdp=000000010b3c3000 [0000000000000000] pgd=0800000111504003, p4d=0800000111504003, pud=0800000111507003, pmd=0000000000000000 Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4124 Comm: syz.3.5 Not tainted 5.15.176-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : 0x0 lr : set_page_dirty+0x23c/0x544 mm/page-writeback.c:2631 sp : ffff8000203a7630 x29: ffff8000203a7630 x28: 0000000000000000 x27: 0000000000000011 x26: fffffc0003815ec8 x25: 1fffff80006fa249 x24: dfff800000000000 x23: 0000000000000000 x22: 05ffc00000000015 x21: ffff0000e95d6bb8 x20: ffff800011f92378 x19: fffffc00037d1240 x18: 0000000000000000 x17: 0000000000000002 x16: ffff800011b4c3d0 x15: 0000000000000406 x14: 1ffff0000296c06c x13: dfff800000000000 x12: 0000000000080000 x11: 0000000000002565 x10: ffff8000261fa000 x9 : 0000000000002566 x8 : 0000000000000000 x7 : 0000000000000000 x6 : 000000000000003f x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000004 x2 : 0000000000000000 x1 : 0000000000000000 x0 : fffffc00037d1240 Call trace: 0x0 ntfs_sparse_cluster+0x6b8/0x87c fs/ntfs3/file.c:337 ntfs_fallocate+0x638/0xc10 fs/ntfs3/file.c:703 vfs_fallocate+0x478/0x5b4 fs/open.c:308 ioctl_preallocate+0x2a0/0x34c fs/ioctl.c:294 do_vfs_ioctl+0x1d00/0x2a38 fs/ioctl.c:853 __do_sys_ioctl fs/ioctl.c:872 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0xe4/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: bad PC value ---[ end trace 715bbb1535f223db ]---