Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008 Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=000000016a322000 [0000000000000008] pgd=080000016a28a003, p4d=080000016a28a003, pud=0800000158334003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 29783 Comm: syz-executor.0 Not tainted 6.2.0-rc3-syzkaller-16387-g9598c377d828 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : _compound_head include/linux/page-flags.h:251 [inline] pc : unlock_page+0x18/0xb8 mm/folio-compat.c:20 lr : unlock_page+0x18/0xb8 mm/folio-compat.c:19 sp : ffff8000165337b0 x29: ffff8000165337b0 x28: 0000000000000007 x27: fffffc0004ce1540 x26: 00000000ffffffff x25: 0000000000100cca x24: 0000000000000000 x23: 0000000000000001 x22: 0000000000000000 x21: 00000000fffffff4 x20: ffff000118eb7100 x19: 0000000000000000 x18: 000000000000033b x17: 6e69676e45206574 x16: ffff80000dd86118 x15: ffff00011ccc1a00 x14: 0000000000000000 x13: 00000000ffffffff x12: 0000000000040000 x11: 00000000000173c8 x10: ffff8000130f5000 x9 : ffff800008403e00 x8 : 00000000000173c9 x7 : ffff80000c11ee8c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: unlock_page+0x18/0xb8 mm/folio-compat.c:19 ni_readpage_cmpr+0x308/0x778 fs/ntfs3/frecord.c:2149 ntfs_read_folio+0xd8/0x128 fs/ntfs3/inode.c:703 filemap_read_folio+0xc4/0x468 mm/filemap.c:2426 filemap_fault+0x368/0x7fc mm/filemap.c:3239 __do_fault+0x60/0x358 mm/memory.c:4163 do_read_fault mm/memory.c:4514 [inline] do_fault+0x338/0x550 mm/memory.c:4643 handle_pte_fault mm/memory.c:4931 [inline] __handle_mm_fault mm/memory.c:5073 [inline] handle_mm_fault+0x824/0xb28 mm/memory.c:5219 __do_page_fault arch/arm64/mm/fault.c:512 [inline] do_page_fault+0x428/0x79c arch/arm64/mm/fault.c:612 do_translation_fault+0x78/0x194 arch/arm64/mm/fault.c:695 do_mem_abort+0x54/0x130 arch/arm64/mm/fault.c:831 el1_abort+0x3c/0x5c arch/arm64/kernel/entry-common.c:367 el1h_64_sync_handler+0x60/0xac arch/arm64/kernel/entry-common.c:427 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:579 __arch_copy_from_user+0xb8/0x230 arch/arm64/lib/copy_template.S:110 __do_sys_fcntl fs/fcntl.c:454 [inline] __se_sys_fcntl fs/fcntl.c:439 [inline] __arm64_sys_fcntl+0xb8/0x17c fs/fcntl.c:439 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x104 arch/arm64/kernel/syscall.c:193 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: a9014ff4 910003fd aa0003f3 97faab87 (f9400674) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: a9014ff4 stp x20, x19, [sp, #16] 4: 910003fd mov x29, sp 8: aa0003f3 mov x19, x0 c: 97faab87 bl 0xffffffffffeaae28 * 10: f9400674 ldr x20, [x19, #8] <-- trapping instruction