------------[ 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