syzbot

TCP: out of memory -- consider tuning tcp_mem
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WARNING: CPU: 1 PID: 4981 at net/ipv4/af_inet.c:157 inet_sock_destruct+0x681/0x790 net/ipv4/af_inet.c:157
Modules linked in:
CPU: 1 UID: 0 PID: 4981 Comm: syz.0.1569 Not tainted syzkaller #0 a8cf528afde17777b8d0df17d514b1350887467d
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025
RIP: 0010:inet_sock_destruct+0x681/0x790 net/ipv4/af_inet.c:157
Code: a3 e8 d3 fa c2 fc 0f 0b e9 53 fe ff ff e8 c7 fa c2 fc 0f 0b e9 92 fe ff ff e8 bb fa c2 fc 0f 0b e9 c4 fe ff ff e8 af fa c2 fc <0f> 0b e9 f6 fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 65 fc ff
RSP: 0018:ffffc900015b7be8 EFLAGS: 00010293
RAX: ffffffff84c2e991 RBX: 0000000080003000 RCX: ffff888116cd2600
RDX: 0000000000000000 RSI: 0000000080003000 RDI: 0000000000000000
RBP: ffffc900015b7c30 R08: ffff888116cdd17f R09: 1ffff11022d9ba2f
R10: dffffc0000000000 R11: ffffed1022d9ba30 R12: ffff888116cdd000
R13: ffff888116cdd000 R14: ffff888116cdd164 R15: 1ffff11022d9ba02
FS:  0000555575e92500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200001000000 CR3: 000000011d736000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 __sk_destruct+0x68/0x6a0 net/core/sock.c:2277
 sk_destruct net/core/sock.c:2325 [inline]
 __sk_free+0x313/0x410 net/core/sock.c:2336
 sk_free+0x58/0xb0 net/core/sock.c:2347
 sock_put include/net/sock.h:1942 [inline]
 tcp_close+0xc4/0x120 net/ipv4/tcp.c:3246
 inet_release+0x1b1/0x2c0 net/ipv4/af_inet.c:442
 __sock_release net/socket.c:659 [inline]
 sock_close+0xda/0x280 net/socket.c:1427
 __fput+0x1fb/0xa00 fs/file_table.c:429
 ____fput+0x20/0x30 fs/file_table.c:457
 task_work_run+0x1e3/0x250 kernel/task_work.c:240
 resume_user_mode_work+0x36/0x50 include/linux/resume_user_mode.h:50
 exit_to_user_mode_loop kernel/entry/common.c:114 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x64/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f59cd98ebe9
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd064d8148 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000001d222 RCX: 00007f59cd98ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f59cdbb7da0 R08: 0000000000000001 R09: 00000016064d843f
R10: 0000001b32220000 R11: 0000000000000246 R12: 00007f59cdbb5fac
R13: 00007f59cdbb5fa0 R14: ffffffffffffffff R15: 00007ffd064d8260
 </TASK>
---[ end trace 0000000000000000 ]---