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: 0 PID: 30798 Comm: syz-executor.2 Not tainted 5.3.0-rc7+ #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:addrconf_f6i_alloc+0x32d/0x4a0 net/ipv6/route.c:4410 Code: 59 bc ff ff 48 85 c0 49 89 c4 74 3d e8 dc 36 32 fb 49 8d bc 24 86 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1f 01 00 00 RSP: 0018:ffff888088e5f230 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 1ffff110111cbe48 RCX: ffffc9000997e000 RDX: 000000000000000f RSI: ffffffff86403e74 RDI: 000000000000007a RBP: ffff888088e5f3b0 R08: ffff88809adcc380 R09: fffffbfff134af90 R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: fffffffffffffff4 R13: ffff8880944e9b00 R14: ffff88805ab0d31c R15: 0000000000000000 FS: 00007f94eb287700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002025c000 CR3: 000000008c09a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: ipv6_add_addr+0x3aa/0x1c80 net/ipv6/addrconf.c:1087 inet6_addr_add+0x41a/0x970 net/ipv6/addrconf.c:2953 inet6_rtm_newaddr+0xb5a/0x14e0 net/ipv6/addrconf.c:4794 rtnetlink_rcv_msg+0x463/0xb00 net/core/rtnetlink.c:5223 netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5241 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x531/0x710 net/netlink/af_netlink.c:1328 netlink_sendmsg+0x8a5/0xd60 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:637 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:657 ___sys_sendmsg+0x803/0x920 net/socket.c:2311 __sys_sendmsg+0x105/0x1d0 net/socket.c:2356 __do_sys_sendmsg net/socket.c:2365 [inline] __se_sys_sendmsg net/socket.c:2363 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2363 do_syscall_64+0xfd/0x6a0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4598e9 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:00007f94eb286c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f94eb2876d4 R13: 00000000004c7777 R14: 00000000004dcfd8 R15: 00000000ffffffff Modules linked in: ---[ end trace e49397dce20b806a ]--- RIP: 0010:addrconf_f6i_alloc+0x32d/0x4a0 net/ipv6/route.c:4410 Code: 59 bc ff ff 48 85 c0 49 89 c4 74 3d e8 dc 36 32 fb 49 8d bc 24 86 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1f 01 00 00 RSP: 0018:ffff888088e5f230 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 1ffff110111cbe48 RCX: ffffc9000997e000 RDX: 000000000000000f RSI: ffffffff86403e74 RDI: 000000000000007a RBP: ffff888088e5f3b0 R08: ffff88809adcc380 R09: fffffbfff134af90 R10: fffffbfff134af8f R11: ffffffff89a57c7f R12: fffffffffffffff4 R13: ffff8880944e9b00 R14: ffff88805ab0d31c R15: 0000000000000000 FS: 00007f94eb287700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000008c09a000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600