Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 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=000000013cb51000 [0000000000000000] pgd=080000014b0c6003, p4d=080000014b0c6003, pud=080000014aec0003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 20586 Comm: syz-executor.0 Not tainted 6.2.0-rc5-syzkaller-17298-gc62c88e05937 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : PagePoisoned include/linux/page-flags.h:302 [inline] pc : page_to_nid include/linux/mm.h:1390 [inline] pc : show_numa_info mm/vmalloc.c:4101 [inline] pc : s_show+0x28c/0x564 mm/vmalloc.c:4172 lr : show_numa_info mm/vmalloc.c:4100 [inline] lr : s_show+0x2c8/0x564 mm/vmalloc.c:4172 sp : ffff800013ec3a80 x29: ffff800013ec3a80 x28: 0000000000010000 x27: 0000000000000eaf x26: 0000000000000001 x25: 00000000000001fe x24: ffff000100d33880 x23: 05ffc00000000000 x22: 0000000000000000 x21: ffff0001073cfe80 x20: ffff0000c606efa8 x19: ffff0000c8cd6000 x18: 00000000000000c0 x17: ffff80000df59158 x16: 0000000000000001 x15: 0000000000000000 x14: 0000000000000002 x13: 0000000000000012 x12: 0000000000040000 x11: 000000000003ffff x10: ffff80001307d000 x9 : ffff8000084cec50 x8 : ffff0000c9222000 x7 : 0000000000000000 x6 : 636f6c6c616d7620 x5 : ffff000105f46f0c x4 : ffff80000cd7de63 x3 : 200070616d762000 x2 : 0000000000000004 x1 : 05ffc00000000000 x0 : ffffffffffffffff Call trace: show_numa_info mm/vmalloc.c:4101 [inline] s_show+0x28c/0x564 mm/vmalloc.c:4172 seq_read_iter+0x448/0x5e0 fs/seq_file.c:272 proc_reg_read_iter+0xdc/0x190 fs/proc/inode.c:305 call_read_iter include/linux/fs.h:2183 [inline] generic_file_splice_read+0xa0/0x1c8 fs/splice.c:309 do_splice_to fs/splice.c:793 [inline] splice_direct_to_actor+0x16c/0x3e4 fs/splice.c:865 do_splice_direct+0xc4/0x14c fs/splice.c:974 do_sendfile+0x298/0x68c fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __arm64_sys_sendfile64+0xb0/0x230 fs/read_write.c:1309 __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: 1ad7211a f9401308 92800000 f8795916 (f94002d7) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 1ad7211a lsl w26, w8, w23 4: f9401308 ldr x8, [x24, #32] 8: 92800000 mov x0, #0xffffffffffffffff // #-1 c: f8795916 ldr x22, [x8, w25, uxtw #3] * 10: f94002d7 ldr x23, [x22] <-- trapping instruction