kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7876 Comm: syz-executor.2 Not tainted 5.2.0-rc3+ #20 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:__fib6_drop_pcpu_from net/ipv6/ip6_fib.c:900 [inline] RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:921 [inline] RIP: 0010:fib6_purge_rt+0x1a0/0x800 net/ipv6/ip6_fib.c:929 Code: c1 ea 03 42 80 3c 32 00 0f 85 43 05 00 00 4c 8b 38 4d 85 ff 0f 84 5c ff ff ff e8 9b 93 4c fb 49 8d 7f 70 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 79 05 00 00 49 8b 57 70 49 39 d5 0f 85 34 ff RSP: 0018:ffff888056adf6d0 EFLAGS: 00010207 RAX: 0000000000040000 RBX: ffff888092be0a00 RCX: ffffc9000849b000 RDX: 000000000000002d RSI: ffffffff86241465 RDI: 000000000000016f RBP: ffff888056adf738 R08: ffff88808e870600 R09: ffffed100c030d81 R10: ffffed100c030d80 R11: ffff888060186c03 R12: 0000000000000000 R13: ffff888069f90ac0 R14: dffffc0000000000 R15: 00000000000000ff FS: 00007f21045f5700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000013b9f28 CR3: 000000005bfec000 CR4: 00000000001406e0 Call Trace: fib6_del_route net/ipv6/ip6_fib.c:1817 [inline] fib6_del+0x9bd/0xeb0 net/ipv6/ip6_fib.c:1848 __ip6_del_rt_siblings net/ipv6/route.c:3468 [inline] ip6_route_del+0xdb6/0x1230 net/ipv6/route.c:3569 ipv6_route_ioctl+0x32e/0x360 net/ipv6/route.c:3928 inet6_ioctl+0x17c/0x1c0 net/ipv6/af_inet6.c:549 sock_do_ioctl+0xd8/0x2f0 net/socket.c:1043 sock_ioctl+0x3ed/0x780 net/socket.c:1194 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0xd5f/0x1380 fs/ioctl.c:696 ksys_ioctl+0xab/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0xfd/0x680 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459279 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f21045f4c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459279 RDX: 0000000020000180 RSI: 000000000000890c RDI: 0000000000000003 RBP: 000000000075c060 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f21045f56d4 R13: 00000000004c4cf5 R14: 00000000004d8ca0 R15: 00000000ffffffff Modules linked in: ---[ end trace 32479b8947327fa2 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:194 [inline] RIP: 0010:__fib6_drop_pcpu_from net/ipv6/ip6_fib.c:900 [inline] RIP: 0010:fib6_drop_pcpu_from net/ipv6/ip6_fib.c:921 [inline] RIP: 0010:fib6_purge_rt+0x1a0/0x800 net/ipv6/ip6_fib.c:929 Code: c1 ea 03 42 80 3c 32 00 0f 85 43 05 00 00 4c 8b 38 4d 85 ff 0f 84 5c ff ff ff e8 9b 93 4c fb 49 8d 7f 70 48 89 fa 48 c1 ea 03 <42> 80 3c 32 00 0f 85 79 05 00 00 49 8b 57 70 49 39 d5 0f 85 34 ff RSP: 0018:ffff888056adf6d0 EFLAGS: 00010207 RAX: 0000000000040000 RBX: ffff888092be0a00 RCX: ffffc9000849b000 RDX: 000000000000002d RSI: ffffffff86241465 RDI: 000000000000016f RBP: ffff888056adf738 R08: ffff88808e870600 R09: ffffed100c030d81 R10: ffffed100c030d80 R11: ffff888060186c03 R12: 0000000000000000 R13: ffff888069f90ac0 R14: dffffc0000000000 R15: 00000000000000ff FS: 00007f21045f5700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000013b9f28 CR3: 000000005bfec000 CR4: 00000000001406e0