------------[ cut here ]------------ WARNING: CPU: 0 PID: 23138 at net/rds/connection.c:933 rds_conn_connect_if_down+0x98/0xc0 net/rds/connection.c:933 Modules linked in: CPU: 0 PID: 23138 Comm: syz-executor.1 Not tainted 6.8.0-rc6-syzkaller-00011-g45ec2f5f6ed3 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:rds_conn_connect_if_down+0x98/0xc0 net/rds/connection.c:933 Code: b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 2a 48 8b bb 90 00 00 00 5b 5d e9 6e fb ff ff e8 e9 fa 85 f7 90 <0f> 0b 90 eb c4 e8 2e 90 e0 f7 eb a8 e8 b7 90 e0 f7 e9 7b ff ff ff RSP: 0018:ffffc9000dc078d8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff88805e710000 RCX: ffffffff8a05e93c RDX: ffff88801bd48000 RSI: ffffffff8a05e977 RDI: 0000000000000001 RBP: 0000000000000002 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: 00000000fffffff5 R13: 0000000000000009 R14: ffff888060b66a50 R15: ffff888060b66a50 FS: 0000000000000000(0000) GS:ffff88802c200000(0063) knlGS:00000000f5e96b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f74220c4 CR3: 0000000057e5c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rds_sendmsg+0x258f/0x3390 net/rds/send.c:1319 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9b4/0xb50 net/socket.c:2584 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2638 __sys_sendmsg+0x117/0x1f0 net/socket.c:2667 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x7c/0x120 arch/x86/entry/common.c:321 do_fast_syscall_32+0x33/0x80 arch/x86/entry/common.c:346 entry_SYSENTER_compat_after_hwframe+0x7c/0x86 RIP: 0023:0xf729c579 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:00000000f5e965ac EFLAGS: 00000292 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020001080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 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