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=0000000055ffd000
[0000000000000000] pgd=080000005a132003, p4d=080000005a132003, pud=0800000057d06003, pmd=0000000000000000
Internal error: Oops: 0000000086000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 UID: 0 PID: 4874 Comm: syz.0.348 Not tainted 6.11.0-syzkaller-08481-g88264981f208 #0
Hardware name: linux,dummy-virt (DT)
pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : 0x0
lr : filemap_read_folio+0xac/0x1f8 mm/filemap.c:2363
sp : ffff80008fcb7760
x29: ffff80008fcb7760 x28: 00000000ffffffff x27: 0000000000080001
x26: 1fffe00001b96869 x25: ffff000012bef6c0 x24: dfff800000000000
x23: 0000000000000000 x22: 1ffff00011f96ef4 x21: ffff000012bef6c0
x20: fffffdffc0804200 x19: fffffdffc0804200 x18: 00000000d4e7d5d4
x17: 0000000000000000 x16: 0000000000000000 x15: ffff0000133e8a80
x14: 1fffe0000267d14f x13: 1fffe0000267d15e x12: ffff70001194ea71
x11: 1ffff0001194ea70 x10: ffff70001194ea70 x9 : dfff800000000000
x8 : 0000000000000003 x7 : 0000000041b58ab3 x6 : ffff700011f96ef4
x5 : 00000000f1f1f1f1 x4 : 00000000f3f3f300 x3 : ffff0000133e8000
x2 : 1fffffbff8100841 x1 : fffffdffc0804200 x0 : ffff000012bef6c0
Call trace:
 0x0
 do_read_cache_folio+0x1c0/0x47c mm/filemap.c:3821
 read_cache_folio+0x44/0x6c mm/filemap.c:3853
 freader_get_folio+0x210/0x6a0 lib/buildid.c:72
 freader_fetch+0x90/0x47c lib/buildid.c:115
 __build_id_parse.isra.0+0xec/0x5ac lib/buildid.c:300
 build_id_parse+0x38/0x58 lib/buildid.c:354
 do_procmap_query+0xab4/0xdf0 fs/proc/task_mmu.c:534
 procfs_procmap_ioctl+0x68/0xa4 fs/proc/task_mmu.c:613
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __arm64_sys_ioctl+0x124/0x190 fs/ioctl.c:893
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x6c/0x258 arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0xac/0x230 arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x40/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x50/0x180 arch/arm64/kernel/entry-common.c:712
 el0t_64_sync_handler+0x100/0x12c arch/arm64/kernel/entry-common.c:730
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598
Code: ???????? ???????? ???????? ???????? (????????) 
---[ end trace 0000000000000000 ]---