WARNING in nft_request

Kernel	Title	Rank ðŸ›ˆ	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	WARNING in nft_request_module netfilter	-1	syz, C	done		7	2393d	2393d	15/29	fixed on 2020/02/18 14:31

audit: type=1400 audit(1579144984.007:38): avc: denied { write } for pid=8241 comm="syz-executor192" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 ------------[ cut here ]------------ truncated: 'nft-expr-0-üÖLMMRö~«ÿ*Ÿ{¬üFþžƒµDcâºHc(›Ý?Vª' (len 209) WARNING: CPU: 1 PID: 8241 at net/netfilter/nf_tables_api.c:507 nft_request_module+0x189/0x1a0 net/netfilter/nf_tables_api.c:507 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8241 Comm: syz-executor192 Not tainted 4.19.96-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 __warn.cold+0x20/0x53 kernel/panic.c:541 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1037 RIP: 0010:nft_request_module+0x189/0x1a0 net/netfilter/nf_tables_api.c:507 Code: 00 75 2b 48 81 c4 10 01 00 00 5b 41 5c 41 5d 5d c3 e8 7b 85 6a fb 44 89 ea 48 c7 c7 60 18 50 88 48 8d 74 24 60 e8 e5 14 3e fb <0f> 0b eb 9a e8 9e 0d 3e fb 0f 1f 40 00 66 2e 0f 1f 84 00 00 00 00 RSP: 0018:ffff88808ef87278 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffffffff89a03040 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81558bc6 RDI: ffffed1011df0e41 RBP: ffff88808ef873a0 R08: ffff8880824b6500 R09: ffff8880824b6da0 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11011df0e4f R13: 00000000000000d1 R14: 0000000000000000 R15: ffff88808ef87450 nft_expr_type_get net/netfilter/nf_tables_api.c:2000 [inline] nf_tables_expr_parse+0x46d/0x5e0 net/netfilter/nf_tables_api.c:2075 nf_tables_newrule+0x73f/0x2140 net/netfilter/nf_tables_api.c:2641 nfnetlink_rcv_batch+0xef6/0x1750 net/netfilter/nfnetlink.c:430 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:540 [inline] nfnetlink_rcv+0x3ed/0x460 net/netfilter/nfnetlink.c:558 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline] netlink_unicast+0x53a/0x730 net/netlink/af_netlink.c:1343 netlink_sendmsg+0x8ae/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x803/0x920 net/socket.c:2115 __sys_sendmsg+0x105/0x1d0 net/socket.c:2153 __do_sys_sendmsg net/socket.c:2162 [inline] __se_sys_sendmsg net/socket.c:2160 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2160 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x440619 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffe2bf553b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440619 RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 00000000006cb018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401ea0 R13: 0000000000401f30 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..