syzbot

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=0000000156ce7000
[0000000000000000] pgd=080000015d83e003, p4d=080000015d83e003, pud=080000015c453003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 9248 Comm: syz-executor.3 Not tainted 6.2.0-rc7-syzkaller-17907-g2d3827b3f393 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : filemap_read_folio+0xac/0x42c mm/filemap.c:2426
sp : ffff80001395b990
x29: ffff80001395b9a0 x28: 00000000ffffffff x27: 0000000000080001
x26: ffff000114069270 x25: 0000000000000000 x24: fffffc0004610800
x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000000000
x20: 0000000000000000 x19: fffffc0004610800 x18: 000000000000dc08
x17: ffff80000dd94158 x16: ffff0001132cd848 x15: ffff80000dbd2118
x14: ffff0001132cce00 x13: 00000000ffffffff x12: 0000000000040000
x11: 000000000000d497 x10: ffff80001a346000 x9 : ffff8000083d2424
x8 : 000000000000d498 x7 : ffff8000083edaa8 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000
x2 : fffffc0004610800 x1 : fffffc0004610800 x0 : 0000000000000000
Call trace:
 0x0
 do_read_cache_folio+0x1a4/0x550 mm/filemap.c:3553
 do_read_cache_page+0x48/0x170 mm/filemap.c:3595
 read_cache_page+0x40/0x54 mm/filemap.c:3604
 read_mapping_page include/linux/pagemap.h:755 [inline]
 dir_get_page fs/minix/dir.c:70 [inline]
 minix_empty_dir+0x7c/0x540 fs/minix/dir.c:372
 minix_rename+0xbc/0x598 fs/minix/namei.c:219
 vfs_rename+0x59c/0x7f8 fs/namei.c:4779
 do_renameat2+0x48c/0x74c fs/namei.c:4930
 __do_sys_renameat2 fs/namei.c:4963 [inline]
 __se_sys_renameat2 fs/namei.c:4960 [inline]
 __arm64_sys_renameat2+0x6c/0x88 fs/namei.c:4960
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x64/0x178 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0xbc/0x180 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x48/0x110 arch/arm64/kernel/syscall.c:193
 el0_svc+0x58/0x14c 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:591
Code: ???????? ???????? ???????? ???????? (????????) 
---[ end trace 0000000000000000 ]---