------------[ cut here ]------------ WARNING: CPU: 0 PID: 6159 at net/ipv4/af_inet.c:155 inet_sock_destruct+0x723/0x830 net/ipv4/af_inet.c:155 Modules linked in: CPU: 0 PID: 6159 Comm: syz-executor714 Not tainted 6.8.0-rc6-syzkaller-00021-gcf1182944c7c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:inet_sock_destruct+0x723/0x830 net/ipv4/af_inet.c:155 Code: 0f 0b 90 e9 c6 fd ff ff e8 8a 71 b1 f7 90 0f 0b 90 e9 01 fe ff ff e8 7c 71 b1 f7 90 0f 0b 90 e9 2f fe ff ff e8 6e 71 b1 f7 90 <0f> 0b 90 e9 be fe ff ff 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c d0 fb RSP: 0018:ffffc90000007b70 EFLAGS: 00010246 RAX: ffffffff89e1fbe2 RBX: 00000000fffff340 RCX: ffff888023461dc0 RDX: 0000000080000101 RSI: 00000000fffff340 RDI: 0000000000000000 RBP: ffff888073f5ce00 R08: ffffffff89e1fa9c R09: 1ffff1100e7eba0e R10: dffffc0000000000 R11: ffffed100e7eba0f R12: 1ffff1100e7eb9c5 R13: ffff888073f5d2e8 R14: ffff888073f5ce28 R15: ffff888073f5ce12 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000040 CR3: 000000000df32000 CR4: 0000000000350ef0 Call Trace: __sk_destruct+0x5a/0x5f0 net/core/sock.c:2173 rcu_do_batch kernel/rcu/tree.c:2190 [inline] rcu_core+0xd78/0x1810 kernel/rcu/tree.c:2465 __do_softirq+0x2bd/0x942 kernel/softirq.c:553 invoke_softirq kernel/softirq.c:427 [inline] __irq_exit_rcu+0xf1/0x1c0 kernel/softirq.c:632 irq_exit_rcu+0x9/0x30 kernel/softirq.c:644 sysvec_apic_timer_interrupt+0x97/0xb0 arch/x86/kernel/apic/apic.c:1076 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] RIP: 0010:rcu_is_watching+0x17/0xb0 kernel/rcu/tree.c:700 Code: 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 57 41 56 53 65 ff 05 28 ec 88 7e e8 eb 78 ec 09 89 c3 <83> f8 08 73 7a 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 40 19 ae RSP: 0018:ffffc900045c74b0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff888023461dc0 RDX: ffff888023461dc0 RSI: ffffffff8bfe6dc0 RDI: ffffffff8bfe6d80 RBP: 0000000000000000 R08: ffffffff82013276 R09: 1ffff11002cc2341 R10: dffffc0000000000 R11: ffffed1002cc2342 R12: ffffea0000ba7b00 R13: 0000000000000000 R14: 0000000000000000 R15: ffffea0000ba7b08 rcu_read_unlock include/linux/rcupdate.h:779 [inline] page_ext_put+0x2f/0xc0 mm/page_ext.c:533 page_table_check_free include/linux/page_table_check.h:41 [inline] free_pages_prepare mm/page_alloc.c:1141 [inline] free_unref_page_prepare+0x97c/0xa90 mm/page_alloc.c:2346 free_unref_page_list+0x5a3/0x850 mm/page_alloc.c:2532 release_pages+0x2744/0x2a80 mm/swap.c:1042 tlb_batch_pages_flush mm/mmu_gather.c:98 [inline] tlb_flush_mmu_free mm/mmu_gather.c:293 [inline] tlb_flush_mmu+0x34c/0x4e0 mm/mmu_gather.c:300 tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:392 exit_mmap+0x4b6/0xd40 mm/mmap.c:3292 __mmput+0x115/0x3c0 kernel/fork.c:1343 exit_mm+0x21f/0x310 kernel/exit.c:569 do_exit+0x9af/0x2740 kernel/exit.c:858 do_group_exit+0x206/0x2c0 kernel/exit.c:1020 get_signal+0x176d/0x1850 kernel/signal.c:2893 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310 exit_to_user_mode_loop kernel/entry/common.c:105 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0xc8/0x360 kernel/entry/common.c:212 do_syscall_64+0x108/0x240 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7fc2da7ec1e9 Code: Unable to access opcode bytes at 0x7fc2da7ec1bf. RSP: 002b:00007fc2da78b238 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fc2da8763f8 RCX: 00007fc2da7ec1e9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc2da8763f8 RBP: 00007fc2da8763f0 R08: 00007fc2da78b6c0 R09: 00007fc2da78b6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc2da8432c0 R13: 000000000000000b R14: 00007ffc4e8eb170 R15: 00007ffc4e8eb258 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 90 90 90 90 90 add %dl,-0x6f6f6f70(%rax) 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: f3 0f 1e fa endbr64 17: 41 57 push %r15 19: 41 56 push %r14 1b: 53 push %rbx 1c: 65 ff 05 28 ec 88 7e incl %gs:0x7e88ec28(%rip) # 0x7e88ec4b 23: e8 eb 78 ec 09 call 0x9ec7913 28: 89 c3 mov %eax,%ebx * 2a: 83 f8 08 cmp $0x8,%eax <-- trapping instruction 2d: 73 7a jae 0xa9 2f: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 36: fc ff df 39: 4c rex.WR 3a: 8d .byte 0x8d 3b: 34 dd xor $0xdd,%al 3d: 40 rex 3e: 19 .byte 0x19 3f: ae scas %es:(%rdi),%al