------------[ cut here ]------------ WARNING: CPU: 1 PID: 13862 at net/ipv4/inet_connection_sock.c:1197 inet_csk_destroy_sock+0x2e3/0x440 net/ipv4/inet_connection_sock.c:1197 Modules linked in: CPU: 1 PID: 13862 Comm: syz-executor.2 Not tainted 6.5.0-rc5-syzkaller-00053-g13b937206866 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:inet_csk_destroy_sock+0x2e3/0x440 net/ipv4/inet_connection_sock.c:1197 Code: 74 2f 5b 5d 41 5c 41 5d e9 5a 45 da f8 e8 55 45 da f8 48 89 df e8 cd e8 72 ff 5b 5d 41 5c 41 5d e9 42 45 da f8 e8 3d 45 da f8 <0f> 0b e9 60 fe ff ff e8 31 45 da f8 4c 89 e7 be 03 00 00 00 e8 a4 RSP: 0018:ffffc900214e7c70 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff8880771b9ec0 RCX: 0000000000000000 RDX: ffff88802547a400 RSI: ffffffff88abc363 RDI: ffff8880771ba568 RBP: 000000000000b204 R08: 0000000000000003 R09: 0000000000000000 R10: 000000000000b204 R11: 0000000000000000 R12: 0000000000000007 R13: ffff8880771b9f40 R14: ffff8880771ba078 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88802c700000(0063) knlGS:000000005675f400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f73568d4 CR3: 000000004845c000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: dccp_close+0xa42/0xd80 net/dccp/proto.c:1068 inet_release+0x132/0x270 net/ipv4/af_inet.c:427 __sock_release+0xcd/0x290 net/socket.c:654 sock_close+0x1c/0x20 net/socket.c:1386 __fput+0x3f7/0xac0 fs/file_table.c:384 task_work_run+0x14d/0x240 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop kernel/entry/common.c:171 [inline] exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297 __do_fast_syscall_32+0x6d/0xe0 arch/x86/entry/common.c:181 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fd2579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000ffd7f360 EFLAGS: 00000293 ORIG_RAX: 0000000000000006 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000005675f400 RDX: 0000000000000000 RSI: 00000000f7353ff4 RDI: 00000000000432ff RBP: 00000000f737c0c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi