------------[ cut here ]------------ WARNING: CPU: 0 PID: 27943 at net/ipv4/af_inet.c:156 inet_sock_destruct+0x684/0x830 net/ipv4/af_inet.c:156 Modules linked in: CPU: 0 UID: 0 PID: 27943 Comm: syz-executor Not tainted 6.16.0-syzkaller-11852-g479058002c32 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:inet_sock_destruct+0x684/0x830 net/ipv4/af_inet.c:156 Code: 0f 0b 90 e9 12 fe ff ff e8 79 af a9 f7 90 0f 0b 90 e9 5e fe ff ff e8 6b af a9 f7 90 0f 0b 90 e9 94 fe ff ff e8 5d af a9 f7 90 <0f> 0b 90 e9 d3 fe ff ff e8 df 04 10 f8 e9 d7 fc ff ff 4c 89 ff e8 RSP: 0018:ffffc90000007d90 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888021b98000 RCX: ffffffff8a11e297 RDX: ffff888036504880 RSI: ffffffff8a11e3c3 RDI: 0000000000000005 RBP: 0000000000000fff R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000fff R11: 0000000000000000 R12: ffff888021b98000 R13: ffff888021b98090 R14: ffffc90000007e90 R15: 0000000000000001 FS: 00005555576c3500(0000) GS:ffff8881246c6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f82352e56c0 CR3: 0000000066ed0000 CR4: 00000000003526f0 Call Trace: __sk_destruct+0x81/0x9a0 net/core/sock.c:2339 rcu_do_batch kernel/rcu/tree.c:2605 [inline] rcu_core+0x79c/0x1530 kernel/rcu/tree.c:2861 handle_softirqs+0x216/0x8e0 kernel/softirq.c:579 __do_softirq kernel/softirq.c:613 [inline] invoke_softirq kernel/softirq.c:453 [inline] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:680 irq_exit_rcu+0x9/0x30 kernel/softirq.c:696 instr_sysvec_call_function_single arch/x86/kernel/smp.c:266 [inline] sysvec_call_function_single+0xa4/0xc0 arch/x86/kernel/smp.c:266 asm_sysvec_call_function_single+0x1a/0x20 arch/x86/include/asm/idtentry.h:709 RIP: 0010:lock_is_held_type+0x107/0x150 kernel/locking/lockdep.c:5945 Code: 00 00 b8 ff ff ff ff 65 0f c1 05 dc 60 43 08 83 f8 01 75 2d 9c 58 f6 c4 02 75 43 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 c7 03 03 00 45 31 ed eb vkms_vblank_simulate: vblank timer overrun RSP: 0018:ffffc9000fcff530 EFLAGS: 00000296 RAX: 0000000000000046 RBX: ffff8880365053e8 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8de28340 RDI: ffffffff8c161100 RBP: ffffffff8e5c1160 R08: 0000000000000006 R09: 0000000000001000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888036504880 R13: 0000000000000001 R14: 00000000ffffffff R15: 0000000000000003 lookup_page_ext+0x10d/0x1d0 mm/page_ext.c:254 page_ext_iter_begin include/linux/page_ext.h:132 [inline] page_table_check_set+0x1e6/0x750 mm/page_table_check.c:113 __page_table_check_ptes_set+0x318/0x420 mm/page_table_check.c:209 page_table_check_ptes_set include/linux/page_table_check.h:76 [inline] set_ptes include/linux/pgtable.h:292 [inline] __copy_present_ptes mm/memory.c:972 [inline] copy_present_ptes mm/memory.c:1051 [inline] copy_pte_range mm/memory.c:1174 [inline] copy_pmd_range mm/memory.c:1261 [inline] copy_pud_range mm/memory.c:1298 [inline] copy_p4d_range mm/memory.c:1322 [inline] copy_page_range+0x2394/0x5c80 mm/memory.c:1410 dup_mmap+0xe88/0x21d0 mm/mmap.c:1834 dup_mm kernel/fork.c:1485 [inline] copy_mm kernel/fork.c:1537 [inline] copy_process+0x4081/0x7690 kernel/fork.c:2175 kernel_clone+0xfc/0x930 kernel/fork.c:2605 __do_sys_clone+0xce/0x120 kernel/fork.c:2748 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6e16385453 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffff0a0bff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6e16385453 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 00005555576c37d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 000000000023a26d R15: 00007ffff0a0c190 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: b8 ff ff ff ff mov $0xffffffff,%eax 7: 65 0f c1 05 dc 60 43 xadd %eax,%gs:0x84360dc(%rip) # 0x84360eb e: 08 f: 83 f8 01 cmp $0x1,%eax 12: 75 2d jne 0x41 14: 9c pushf 15: 58 pop %rax 16: f6 c4 02 test $0x2,%ah 19: 75 43 jne 0x5e 1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 22: 00 23: 74 01 je 0x26 25: fb sti 26: 48 83 c4 08 add $0x8,%rsp * 2a: 44 89 e8 mov %r13d,%eax <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: e9 c7 03 03 00 jmp 0x30403 3c: 45 31 ed xor %r13d,%r13d 3f: eb .byte 0xeb