EXT4-fs error (device loop0): ext4_free_blocks:6587: comm syz.0.330: Freeing blocks not in datazone - block = 0, count = 4096
EXT4-fs (loop0): 1 orphan inode deleted
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 ro without journal. Quota mode: writeback.
Unable to handle kernel paging request at virtual address dfff800000000018
KASAN: null-ptr-deref in range [0x00000000000000c0-0x00000000000000c7]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff800000000018] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 7899 Comm: syz.0.330 Not tainted 6.15.0-rc7-syzkaller-gd7fa1af5b33e #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : __in6_dev_get include/net/addrconf.h:347 [inline]
pc : ip6_ignore_linkdown include/net/addrconf.h:443 [inline]
pc : find_match+0xa0/0xacc net/ipv6/route.c:781
lr : find_match+0x74/0xacc net/ipv6/route.c:778
sp : ffff80009fc77020
x29: ffff80009fc77040 x28: 1fffe0001ac0c9a6 x27: 1fffe0001ac0c9a4
x26: 00000000000000c0 x25: ffff0000d6064d37 x24: 0000000000000201
x23: 0000000000000040 x22: ffff0000d6064d20 x21: 000000000000001e
x20: dfff800000000000 x19: 0000000000000000 x18: 0000000000000000
x17: 0000000000000000 x16: ffff80008051c10c x15: 0000000000000002
x14: 1ffff00013f8ee48 x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000080000 x10: 0000000000ff0100 x9 : 0000000000000002
x8 : 0000000000000018 x7 : ffff80009fc773d0 x6 : 0000000000000040
x5 : ffff80009fc773d0 x4 : ffff80009fc773c0 x3 : 0000000000000040
x2 : 000000000000001e x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 __in6_dev_get include/net/addrconf.h:347 [inline] (P)
 ip6_ignore_linkdown include/net/addrconf.h:443 [inline] (P)
 find_match+0xa0/0xacc net/ipv6/route.c:781 (P)
 rt6_nh_find_match+0xcc/0x138 net/ipv6/route.c:821
 nexthop_for_each_fib6_nh+0x1a8/0x3d0 net/ipv4/nexthop.c:1515
 __find_rr_leaf+0x3b8/0x5c8 net/ipv6/route.c:862
 find_rr_leaf net/ipv6/route.c:890 [inline]
 rt6_select net/ipv6/route.c:934 [inline]
 fib6_table_lookup+0x308/0x8b8 net/ipv6/route.c:2230
 ip6_nh_lookup_table net/ipv6/route.c:3384 [inline]
 ip6_route_check_nh_onlink net/ipv6/route.c:3402 [inline]
 ip6_validate_gw net/ipv6/route.c:3512 [inline]
 fib6_nh_init+0xcfc/0x1960 net/ipv6/route.c:3633
 ip6_route_info_create+0x78c/0xf5c net/ipv6/route.c:3852
 ip6_route_add+0x38/0x18c net/ipv6/route.c:3896
 ipv6_route_ioctl+0x2b4/0x3d0 net/ipv6/route.c:4526
 inet6_ioctl+0x20c/0x268 net/ipv6/af_inet6.c:577
 sock_do_ioctl+0xf4/0x2b4 net/socket.c:1190
 sock_ioctl+0x57c/0x84c net/socket.c:1311
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:892
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: 97978776 f94002c8 9103011a d343ff48 (38746908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	97978776 	bl	0xfffffffffe5e1dd8
   4:	f94002c8 	ldr	x8, [x22]
   8:	9103011a 	add	x26, x8, #0xc0
   c:	d343ff48 	lsr	x8, x26, #3
* 10:	38746908 	ldrb	w8, [x8, x20] <-- trapping instruction