------------[ cut here ]------------
kernel BUG at net/socket.c:707!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 304 Comm: syz-executor939 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:sock_sendmsg_nosec net/socket.c:707 [inline]
RIP: 0010:__sock_sendmsg net/socket.c:716 [inline]
RIP: 0010:sock_write_iter+0x39d/0x3a0 net/socket.c:1080
Code: f0 fd e9 98 fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 34 fe ff ff 4c 89 ef e8 ad 48 f0 fd e9 27 fe ff ff e8 c3 d2 b0 fd <0f> 0b 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 38 48 89
RSP: 0018:ffffc90000977b60 EFLAGS: 00010293
RAX: ffffffff83b8f4dd RBX: 00000000fffffdef RCX: ffff888121b38000
RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef
RBP: ffffc90000977c70 R08: ffffc900009777e7 R09: 1ffff9200012eefc
R10: dffffc0000000000 R11: fffff5200012eefd R12: dffffc0000000000
R13: ffff888111bedc20 R14: ffffc90000977ba0 R15: 1ffff9200012ef70
FS:  000055557fd253c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006a9ee0 CR3: 000000011e5a0000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 call_write_iter include/linux/fs.h:2212 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0x831/0xfd0 fs/read_write.c:594
 ksys_write+0x14a/0x260 fs/read_write.c:647
 __do_sys_write fs/read_write.c:659 [inline]
 __se_sys_write fs/read_write.c:656 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:656
 x64_sys_call+0x8ef/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f2652edfcb9
Code: c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 0f 1f 44 00 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 d8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe5d3fad78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007f2652edfcb9
RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe5d3faeb8
R13: 0000000000000002 R14: 00002000000000c0 R15: 0000000000000002
 </TASK>
Modules linked in:
---[ end trace 6bb14b75b5cc645d ]---
RIP: 0010:sock_sendmsg_nosec net/socket.c:707 [inline]
RIP: 0010:__sock_sendmsg net/socket.c:716 [inline]
RIP: 0010:sock_write_iter+0x39d/0x3a0 net/socket.c:1080
Code: f0 fd e9 98 fe ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 34 fe ff ff 4c 89 ef e8 ad 48 f0 fd e9 27 fe ff ff e8 c3 d2 b0 fd <0f> 0b 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 38 48 89
RSP: 0018:ffffc90000977b60 EFLAGS: 00010293
RAX: ffffffff83b8f4dd RBX: 00000000fffffdef RCX: ffff888121b38000
RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef
RBP: ffffc90000977c70 R08: ffffc900009777e7 R09: 1ffff9200012eefc
R10: dffffc0000000000 R11: fffff5200012eefd R12: dffffc0000000000
R13: ffff888111bedc20 R14: ffffc90000977ba0 R15: 1ffff9200012ef70
FS:  000055557fd253c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006a9ee0 CR3: 000000011e5a0000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400