oom-kill:constraint=CONSTRAINT_MEMCG,nodemask=(null),cpuset=syz1,mems_allowed=0-1,oom_memcg=/syz1,task_memcg=/syz1,task=syz-executor.1,pid=9701,uid=0 Memory cgroup out of memory: OOM victim 9701 (syz-executor.1) is already exiting. Skip killing the task ------------[ cut here ]------------ dst_release underflow WARNING: CPU: 0 PID: 14545 at net/core/dst.c:173 dst_release net/core/dst.c:173 [inline] WARNING: CPU: 0 PID: 14545 at net/core/dst.c:173 dst_release+0xd2/0xe0 net/core/dst.c:167 Modules linked in: CPU: 0 PID: 14545 Comm: syz-executor.1 Not tainted 5.17.0-rc6-syzkaller-00228-gac84e82f78cb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:dst_release net/core/dst.c:173 [inline] RIP: 0010:dst_release+0xd2/0xe0 net/core/dst.c:167 Code: 89 c3 89 c6 e8 4f ff 46 fa 85 db 74 a4 e9 10 6a 15 02 e8 c1 fb 46 fa 48 c7 c7 a0 47 af 8a c6 05 a0 d4 4d 06 01 e8 b5 4b d6 01 <0f> 0b eb c6 66 2e 0f 1f 84 00 00 00 00 00 41 56 41 55 41 54 55 48 RSP: 0018:ffffc90004c9f830 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815fe288 RDI: fffff52000993ef8 RBP: ffff88803542bbd8 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815f891e R11: 0000000000000000 R12: ffff88803542bbd8 R13: 00000000ffffffff R14: 0000000000000500 R15: ffff8880471a0000 FS: 00007f31445ab700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020037000 CR3: 000000002fd68000 CR4: 0000000000350ef0 Call Trace: refdst_drop include/net/dst.h:262 [inline] skb_dst_drop include/net/dst.h:274 [inline] skb_release_head_state+0x24c/0x2a0 net/core/skbuff.c:726 skb_release_all net/core/skbuff.c:740 [inline] __kfree_skb net/core/skbuff.c:756 [inline] kfree_skb_reason.part.0+0x8a/0x2f0 net/core/skbuff.c:776 kfree_skb_reason+0x85/0x110 include/linux/refcount.h:279 kfree_skb include/linux/skbuff.h:1114 [inline] __mptcp_alloc_tx_skb net/mptcp/protocol.c:1199 [inline] mptcp_alloc_tx_skb net/mptcp/protocol.c:1213 [inline] mptcp_sendmsg_frag+0x16b6/0x2190 net/mptcp/protocol.c:1278 __mptcp_push_pending+0x232/0x720 net/mptcp/protocol.c:1564 mptcp_sendmsg+0x8cf/0x1240 net/mptcp/protocol.c:1760 inet6_sendmsg+0x99/0xe0 net/ipv6/af_inet6.c:643 sock_sendmsg_nosec net/socket.c:705 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:725 sock_write_iter+0x289/0x3c0 net/socket.c:1061 call_write_iter include/linux/fs.h:2074 [inline] new_sync_write+0x431/0x660 fs/read_write.c:503 vfs_write+0x7cd/0xae0 fs/read_write.c:590 ksys_write+0x1ee/0x250 fs/read_write.c:643 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f3145c36049 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f31445ab168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3145d48f60 RCX: 00007f3145c36049 RDX: 000000002007e53d RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f3145c9008d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffc73c0ddf R14: 00007f31445ab300 R15: 0000000000022000