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: 31418 Comm: syz-executor.2 Not tainted 5.2.0+ #35 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:nla_len /./include/net/netlink.h:1084 [inline] RIP: 0010:nla_parse_nested_deprecated /./include/net/netlink.h:1167 [inline] RIP: 0010:tcf_ife_init+0xff/0x1630 /net/sched/act_ife.c:484 Code: 00 74 08 4c 89 ef e8 d0 17 8e fb 48 8d 9c 24 a0 00 00 00 48 c7 84 24 50 01 00 00 00 00 00 00 4d 8d 6e 04 4c 89 f0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ca 12 00 00 41 0f b7 0e 83 c1 fc 48 89 df RSP: 0018:ffff888056d3ec00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888056d3eca0 RCX: 0000000056d3eb03 RDX: ffff8880a3c16d98 RSI: ffffffff88cd6340 RDI: 0000000000000282 RBP: ffff888056d3edd8 R08: dffffc0000000000 R09: fffffbfff11fba3d R10: fffffbfff11fba3d R11: 0000000000000000 R12: 1ffff1100ada7daa R13: 0000000000000004 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fe8f84d6700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000046ee30 CR3: 0000000091ca7000 CR4: 00000000001406e0 Call Trace: tcf_action_init_1+0x786/0xd40 /net/sched/act_api.c:915 tcf_action_init+0x183/0x490 /net/sched/act_api.c:971 tcf_action_add /net/sched/act_api.c:1356 [inline] tc_ctl_action+0x3ad/0x920 /net/sched/act_api.c:1408 rtnetlink_rcv_msg+0xb19/0xe50 /net/core/rtnetlink.c:5223 netlink_rcv_skb+0x1f0/0x460 /net/netlink/af_netlink.c:2477 rtnetlink_rcv+0x1c/0x20 /net/core/rtnetlink.c:5241 netlink_unicast_kernel /net/netlink/af_netlink.c:1302 [inline] netlink_unicast+0x809/0x9a0 /net/netlink/af_netlink.c:1328 netlink_sendmsg+0xa70/0xd30 /net/netlink/af_netlink.c:1917 sock_sendmsg_nosec /net/socket.c:633 [inline] sock_sendmsg /net/socket.c:653 [inline] ___sys_sendmsg+0x66b/0x9a0 /net/socket.c:2307 __sys_sendmsg /net/socket.c:2352 [inline] __do_sys_sendmsg /net/socket.c:2361 [inline] __se_sys_sendmsg /net/socket.c:2359 [inline] __x64_sys_sendmsg+0x1cf/0x290 /net/socket.c:2359 do_syscall_64+0xfe/0x140 /arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459819 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:00007fe8f84d5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459819 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe8f84d66d4 R13: 00000000004c75e4 R14: 00000000004dcb80 R15: 00000000ffffffff Modules linked in: ---[ end trace fb353e8bd1083146 ]--- RIP: 0010:nla_len /./include/net/netlink.h:1084 [inline] RIP: 0010:nla_parse_nested_deprecated /./include/net/netlink.h:1167 [inline] RIP: 0010:tcf_ife_init+0xff/0x1630 /net/sched/act_ife.c:484 Code: 00 74 08 4c 89 ef e8 d0 17 8e fb 48 8d 9c 24 a0 00 00 00 48 c7 84 24 50 01 00 00 00 00 00 00 4d 8d 6e 04 4c 89 f0 48 c1 e8 03 <42> 8a 04 38 84 c0 0f 85 ca 12 00 00 41 0f b7 0e 83 c1 fc 48 89 df RSP: 0018:ffff888056d3ec00 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888056d3eca0 RCX: 0000000056d3eb03 RDX: ffff8880a3c16d98 RSI: ffffffff88cd6340 RDI: 0000000000000282 RBP: ffff888056d3edd8 R08: dffffc0000000000 R09: fffffbfff11fba3d R10: fffffbfff11fba3d R11: 0000000000000000 R12: 1ffff1100ada7daa R13: 0000000000000004 R14: 0000000000000000 R15: dffffc0000000000 FS: 00007fe8f84d6700(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5c25c5d518 CR3: 0000000091ca7000 CR4: 00000000001406e0