Unable to handle kernel paging request at virtual address dfff800000000068 KASAN: null-ptr-deref in range [0x0000000000000340-0x0000000000000347] 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 [dfff800000000068] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 8630 Comm: syz.5.923 Not tainted 6.1.141-syzkaller #0 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:323 [inline] pc : ip6_ignore_linkdown include/net/addrconf.h:414 [inline] pc : find_match+0xa0/0xb0c net/ipv6/route.c:784 lr : find_match+0x74/0xb0c net/ipv6/route.c:781 sp : ffff800020f16fc0 x29: ffff800020f16fe0 x28: 1fffe00018180784 x27: dfff800000000000 x26: 0000000000000340 x25: ffff0000c0c03c37 x24: 0000000000000201 x23: 0000000000000040 x22: ffff0000c0c03c20 x21: 000000000000001e x20: 1fffe00018180786 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff8000082d0750 x15: 0000000000000002 x14: 000000000000c0fe x13: 1ffff00002a0e0b1 x12: 0000000000ff0100 x11: ff0080001077fb04 x10: 0000000000000002 x9 : ffff0000c33e8000 x8 : 0000000000000068 x7 : ffff800020f17370 x6 : 0000000000000040 x5 : ffff800020f17370 x4 : ffff800020f17360 x3 : 0000000000000040 x2 : 000000000000001e x1 : 0000000000000000 x0 : 0000000000000000 Call trace: __in6_dev_get include/net/addrconf.h:323 [inline] ip6_ignore_linkdown include/net/addrconf.h:414 [inline] find_match+0xa0/0xb0c net/ipv6/route.c:784 rt6_nh_find_match+0xcc/0x138 net/ipv6/route.c:824 nexthop_for_each_fib6_nh+0x1a8/0x3d0 net/ipv4/nexthop.c:1243 __find_rr_leaf+0x3b8/0x5c8 net/ipv6/route.c:865 find_rr_leaf net/ipv6/route.c:893 [inline] rt6_select net/ipv6/route.c:937 [inline] fib6_table_lookup+0x308/0x8b8 net/ipv6/route.c:2223 ip6_nh_lookup_table net/ipv6/route.c:3381 [inline] ip6_route_check_nh_onlink net/ipv6/route.c:3399 [inline] ip6_validate_gw net/ipv6/route.c:3506 [inline] fib6_nh_init+0xd74/0x19cc net/ipv6/route.c:3624 ip6_route_info_create+0x7b0/0xf7c net/ipv6/route.c:3846 ip6_route_add+0x34/0x158 net/ipv6/route.c:3890 ipv6_route_ioctl+0x2b4/0x3d0 net/ipv6/route.c:4517 inet6_ioctl+0x2d0/0x360 net/ipv6/af_inet6.c:586 sock_do_ioctl+0xf8/0x240 net/socket.c:1204 sock_ioctl+0x5c4/0x840 net/socket.c:1321 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 96055809 f94002c8 910d011a d343ff48 (387b6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 96055809 bl 0xfffffffff8156024 4: f94002c8 ldr x8, [x22] 8: 910d011a add x26, x8, #0x340 c: d343ff48 lsr x8, x26, #3 * 10: 387b6908 ldrb w8, [x8, x27] <-- trapping instruction