Unable to handle kernel paging request at virtual address dfff800000000193 KASAN: null-ptr-deref in range [0x0000000000000c98-0x0000000000000c9f] 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 [dfff800000000193] address between user and kernel address ranges Internal error: Oops: 0000000096000005 [#1] SMP Modules linked in: CPU: 0 UID: 0 PID: 3776 Comm: syz.3.15751 Not tainted 6.15.0-rc1-syzkaller #0 PREEMPT Hardware name: linux,dummy-virt (DT) pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : netdev_need_ops_lock include/net/netdev_lock.h:30 [inline] pc : netdev_lock_ops include/net/netdev_lock.h:41 [inline] pc : addrconf_add_ifaddr+0x124/0x314 net/ipv6/addrconf.c:3157 lr : addrconf_add_ifaddr+0x108/0x314 net/ipv6/addrconf.c:3156 sp : ffff8000a0d87900 x29: ffff8000a0d87900 x28: ffff0000130a9e40 x27: ffff00000f413b00 x26: 0000000080000200 x25: 0000000000000005 x24: 0000000000000193 x23: 0000000080000200 x22: 0000000000000c9d x21: 1ffff000141b0f2a x20: ffff00000f413b00 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000080000200 x14: 00000000f1f1f1f1 x13: 0000000000000000 x12: ffff7000141b0eeb x11: 1ffff000141b0eea x10: ffff7000141b0eea x9 : dfff800000000000 x8 : ffff8000a0d87757 x7 : 0000000000000001 x6 : ffff7000141b0eea x5 : ffff8000a0d87750 x4 : 1fffe000026153c9 x3 : 1fffe000031f8000 x2 : 0000000000000000 x1 : 0000000000000005 x0 : dfff800000000000 Call trace: netdev_need_ops_lock include/net/netdev_lock.h:30 [inline] (P) netdev_lock_ops include/net/netdev_lock.h:41 [inline] (P) addrconf_add_ifaddr+0x124/0x314 net/ipv6/addrconf.c:3157 (P) inet6_ioctl+0xec/0x350 net/ipv6/af_inet6.c:580 sock_do_ioctl+0xe4/0x1cc net/socket.c:1190 compat_sock_ioctl_trans net/socket.c:3481 [inline] compat_sock_ioctl+0x2a0/0x530 net/socket.c:3507 __do_compat_sys_ioctl fs/ioctl.c:1004 [inline] __se_compat_sys_ioctl fs/ioctl.c:947 [inline] __arm64_compat_sys_ioctl+0x1b0/0x214 fs/ioctl.c:947 __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_compat+0x40/0x68 arch/arm64/kernel/syscall.c:157 el0_svc_compat+0x4c/0x17c arch/arm64/kernel/entry-common.c:887 el0t_32_sync_handler+0x98/0x13c arch/arm64/kernel/entry-common.c:897 el0t_32_sync+0x19c/0x1a0 arch/arm64/kernel/entry.S:605 Code: f2fbffe0 12000ac1 d343fed8 92400ad9 (38e06b00) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f2fbffe0 movk x0, #0xdfff, lsl #48 4: 12000ac1 and w1, w22, #0x7 8: d343fed8 lsr x24, x22, #3 c: 92400ad9 and x25, x22, #0x7 * 10: 38e06b00 ldrsb w0, [x24, x0] <-- trapping instruction