refcount_t: saturated; leaking memory. WARNING: CPU: 1 PID: 20363 at lib/refcount.c:19 refcount_warn_saturate+0xf4/0x1e0 lib/refcount.c:19 Modules linked in: CPU: 1 PID: 20363 Comm: syz-executor.3 Not tainted 5.12.0-rc7-next-20210412-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:refcount_warn_saturate+0xf4/0x1e0 lib/refcount.c:19 Code: 1d e8 6c e5 09 31 ff 89 de e8 18 42 a6 fd 84 db 75 ab e8 5f 3b a6 fd 48 c7 c7 20 7f c2 89 c6 05 c8 6c e5 09 01 e8 1c 34 01 05 <0f> 0b eb 8f e8 43 3b a6 fd 0f b6 1d b2 6c e5 09 31 ff 89 de e8 e3 RSP: 0018:ffffc90002b3f520 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815c7435 RDI: fffff52000567e96 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815c127e R11: 0000000000000000 R12: 1ffff92000567ea7 R13: 0000000090203701 R14: ffff88802d111400 R15: ffffc90002b3f558 FS: 00007f824ea11700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005622855eddf0 CR3: 0000000023ccc000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __refcount_add_not_zero include/linux/refcount.h:163 [inline] __refcount_inc_not_zero include/linux/refcount.h:227 [inline] refcount_inc_not_zero include/linux/refcount.h:245 [inline] sk_psock_get+0x3bc/0x410 include/linux/skmsg.h:434 bpf_exec_tx_verdict+0x11e/0x11a0 net/tls/tls_sw.c:799 tls_sw_sendmsg+0xa41/0x1800 net/tls/tls_sw.c:1013 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:821 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 sock_write_iter+0x289/0x3c0 net/socket.c:1001 call_write_iter include/linux/fs.h:2114 [inline] new_sync_write+0x426/0x650 fs/read_write.c:518 vfs_write+0x75a/0xa40 fs/read_write.c:605 ksys_write+0x1ee/0x250 fs/read_write.c:658 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x466459 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f824ea11188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000466459 RDX: 0000000000000146 RSI: 0000000020000380 RDI: 0000000000000003 RBP: 00000000004bf9fb R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd9dc4ae3f R14: 00007f824ea11300 R15: 0000000000022000