------------[ cut here ]------------
WARNING: CPU: 1 PID: 4184 at net/ipv4/af_inet.c:157 inet_sock_destruct+0x63b/0x730 net/ipv4/af_inet.c:157
Modules linked in:
CPU: 1 PID: 4184 Comm: syz-execprog Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:inet_sock_destruct+0x63b/0x730 net/ipv4/af_inet.c:157
Code: 01 e8 c9 f3 10 f9 0f 0b e9 64 fe ff ff e8 bd f3 10 f9 0f 0b e9 99 fe ff ff e8 b1 f3 10 f9 0f 0b e9 c1 fe ff ff e8 a5 f3 10 f9 <0f> 0b e9 e9 fe ff ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 5b fd ff
RSP: 0018:ffffc90000dd0b20 EFLAGS: 00010246
RAX: ffffffff8866d86b RBX: dffffc0000000000 RCX: ffff888079b90000
RDX: 0000000000000100 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000080000000 R08: dffffc0000000000 R09: ffffed100f628050
R10: ffffed100f628050 R11: 1ffff1100f62804f R12: ffff88807b140000
R13: ffff88807b140000 R14: ffff88807b140220 R15: 1ffff1100f628002
FS: 0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00003e720 CR3: 0000000076a9c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
__sk_destruct+0x50/0x840 net/core/sock.c:1961
sock_put include/net/sock.h:1976 [inline]
sctp_endpoint_destroy_rcu+0x9d/0xe0 net/sctp/endpointola.c:193
rcu_do_batch kernel/rcu/tree.c:2523 [inline]
rcu_core+0x962/0x15d0 kernel/rcu/tree.c:2763
handle_softirqs+0x328/0x820 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x12f/0x220 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:check_region_inline mm/kasan/generic.c:169 [inline]
RIP: 0010:kasan_check_range+0xd/0x290 mm/kasan/generic.c:189
Code: c3 0f 0b b8 ea ff ff ff c3 0f 0b b8 ea ff ff ff c3 00 00 cc cc 00 00 cc cc 00 00 cc cc b0 01 48 85 f6 0f 84 a4 01 00 00 41 57 <41> 56 53 49 89 f8 49 01 f0 0f 82 57 02 00 00 49 89 f8 49 c1 e8 2f
RSP: 0018:ffffc90002eef4d0 EFLAGS: 00000202
RAX: ffffffff81b72801 RBX: ffffea0001c54380 RCX: ffffffff81b728f6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffea0001c54380
RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1002d4fa11
R10: ffffed1002d4fa11 R11: 1ffff11002d4fa10 R12: ffffea0001c54388
R13: ffffea0001c54380 R14: dffffc0000000000 R15: dffffc0000000000
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
PageCompound include/linux/page-flags.h:212 [inline]
PageHuge+0x26/0x130 mm/hugetlb.c:1742
page_remove_file_rmap mm/rmap.c:1260 [inline]
page_remove_rmap+0x621/0x10f0 mm/rmap.c:1354
zap_pte_range mm/memory.c:1384 [inline]
zap_pmd_range mm/memory.c:1505 [inline]
zap_pud_range mm/memory.c:1534 [inline]
zap_p4d_range mm/memory.c:1555 [inline]
unmap_page_range+0xfbc/0x2520 mm/memory.c:1576
unmap_vmas+0x11b/0x230 mm/memory.c:1653
exit_mmap+0x38f/0x5f0 mm/mmap.c:3216
__mmput+0x115/0x3b0 kernel/fork.c:1127
exit_mm+0x567/0x6c0 kernel/exit.c:550
do_exit+0x5a1/0x20a0 kernel/exit.c:870
do_group_exit+0x12e/0x300 kernel/exit.c:997
get_signal+0x6ca/0x12c0 kernel/signal.c:2900
arch_do_signal_or_restart+0xc1/0x1300 arch/x86/kernel/signal.c:867
handle_signal_work kernel/entry/common.c:154 [inline]
exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x4800c3
Code: Unable to access opcode bytes at RIP 0x480099.
RSP: 002b:000000c003f31ef0 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 00000000004800c3
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000003287b38
RBP: 000000c003f31f38 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000286 R12: 000000000047c340
R13: 000000c0024fd808 R14: 000000c00250a540 R15: 000000c00250a540
</TASK>
----------------
Code disassembly (best guess):
0: c3 ret
1: 0f 0b ud2
3: b8 ea ff ff ff mov $0xffffffea,%eax
8: c3 ret
9: 0f 0b ud2
b: b8 ea ff ff ff mov $0xffffffea,%eax
10: c3 ret
11: 00 00 add %al,(%rax)
13: cc int3
14: cc int3
15: 00 00 add %al,(%rax)
17: cc int3
18: cc int3
19: 00 00 add %al,(%rax)
1b: cc int3
1c: cc int3
1d: b0 01 mov $0x1,%al
1f: 48 85 f6 test %rsi,%rsi
22: 0f 84 a4 01 00 00 je 0x1cc
28: 41 57 push %r15
* 2a: 41 56 push %r14 <-- trapping instruction
2c: 53 push %rbx
2d: 49 89 f8 mov %rdi,%r8
30: 49 01 f0 add %rsi,%r8
33: 0f 82 57 02 00 00 jb 0x290
39: 49 89 f8 mov %rdi,%r8
3c: 49 c1 e8 2f shr $0x2f,%r8