Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018 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=00000001121bf000 [0000000000000018] pgd=080000010d56a003, p4d=080000010d56a003, pud=080000010d5a9003, pmd=0000000000000000 Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 3596 Comm: syz-executor.1 Not tainted 6.1.0-rc5-syzkaller-32269-g9500fc6e9e60 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lock_acquire+0x60/0x3084 kernel/locking/lockdep.c:4925 lr : lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668 sp : ffff8000142939f0 x29: ffff800014293ad0 x28: 0000000000000000 x27: 00000000000000c0 x26: 0000000000000018 x25: ffff80000818d730 x24: 0000000000000080 x23: 0000000000000000 x22: 0000000000000018 x21: 0000000000000000 x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000296 x17: 0000000000000000 x16: ffff80000dc18158 x15: ffff0000d1913480 x14: 00000000000000e8 x13: 00000000ffffffff x12: ffff0000d1913480 x11: ff808000095f6cf8 x10: 0000000000000000 x9 : 0000000000000001 x8 : 0000000000000001 x7 : ffff80000818d730 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000018 Call trace: __lock_acquire+0x60/0x3084 kernel/locking/lockdep.c:4925 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5668 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x6c/0xb4 kernel/locking/spinlock.c:162 prepare_to_wait+0x38/0x120 kernel/sched/wait.c:265 nr_accept+0x1bc/0x250 net/netrom/af_netrom.c:793 do_accept+0x1d8/0x274 net/socket.c:1856 __sys_accept4_file net/socket.c:1897 [inline] __sys_accept4+0xb4/0x12c net/socket.c:1927 __do_sys_accept net/socket.c:1944 [inline] __se_sys_accept net/socket.c:1941 [inline] __arm64_sys_accept+0x28/0x3c net/socket.c:1941 __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+0x48/0x164 arch/arm64/kernel/syscall.c:206 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: 2a0303f4 2a0203f7 aa0003fa 34000148 (f9400348) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 2a0303f4 mov w20, w3 4: 2a0203f7 mov w23, w2 8: aa0003fa mov x26, x0 c: 34000148 cbz w8, 0x34 * 10: f9400348 ldr x8, [x26] <-- trapping instruction