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WARNING: CPU: 3 PID: 109 at net/ipv4/af_inet.c:154 inet_sock_destruct+0x6df/0x8a0 net/ipv4/af_inet.c:154
Modules linked in:
CPU: 3 PID: 109 Comm: kswapd0 Not tainted 6.3.0-rc7-syzkaller-00152-g2af3e53a4dc0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.14.0-2 04/01/2014
RIP: 0010:inet_sock_destruct+0x6df/0x8a0 net/ipv4/af_inet.c:154
Code: ff e8 45 5d ec f8 0f 0b e9 07 fe ff ff e8 39 5d ec f8 0f 0b e9 3f fe ff ff e8 2d 5d ec f8 0f 0b e9 95 fd ff ff e8 21 5d ec f8 <0f> 0b e9 9f fe ff ff e8 e5 88 3c f9 e9 7a fc ff ff 4c 89 e7 e8 18
RSP: 0018:ffffc900007e8c48 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00000000ffff9000 RCX: 0000000000000100
RDX: ffff8880191dc080 RSI: ffffffff8895b40f RDI: 0000000000000005
RBP: ffff888026aee580 R08: 0000000000000005 R09: 0000000000000000
R10: 00000000ffff9000 R11: 0000000000000001 R12: ffff888026aee5a8
R13: ffff888026aee7f4 R14: ffff888026aee600 R15: 0000000000000001
FS: 0000000000000000(0000) GS:ffff88802c900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d823000 CR3: 000000001d8b5000 CR4: 0000000000150ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__sk_destruct+0x4d/0x770 net/core/sock.c:2135
sk_destruct net/core/sock.c:2183 [inline]
__sk_free+0x175/0x460 net/core/sock.c:2194
sk_free+0x7c/0xa0 net/core/sock.c:2205
sock_put include/net/sock.h:1968 [inline]
tcp_write_timer+0x24b/0x2b0 net/ipv4/tcp_timer.c:644
call_timer_fn+0x1a0/0x580 kernel/time/timer.c:1700
expire_timers+0x29b/0x4b0 kernel/time/timer.c:1751
__run_timers kernel/time/timer.c:2022 [inline]
__run_timers kernel/time/timer.c:1995 [inline]
run_timer_softirq+0x326/0x910 kernel/time/timer.c:2035
__do_softirq+0x1d4/0x905 kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x114/0x190 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:200
Code: 56 0f 8d 02 66 0f 1f 44 00 00 f3 0f 1e fa 48 8b be a8 01 00 00 e8 b0 ff ff ff 31 c0 c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1e fa 65 8b 05 8d a7 81 7e 89 c1 48 8b 34 24 81 e1 00 01 00
RSP: 0018:ffffc90000f17930 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000200 RCX: 0000000000000000
RDX: ffff8880191dc080 RSI: ffffffff84855d31 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000200 R11: 0000000000000000 R12: ffff88802c939020
R13: 1ffff920001e2f2a R14: 0000000000000003 R15: 0000000000000047
get_random_u8+0x427/0x7d0 drivers/char/random.c:530
get_random_u32_below include/linux/random.h:78 [inline]
shrink_many mm/vmscan.c:5369 [inline]
lru_gen_shrink_node mm/vmscan.c:5511 [inline]
shrink_node+0x1e28/0x35f0 mm/vmscan.c:6459
kswapd_shrink_node mm/vmscan.c:7262 [inline]
balance_pgdat+0xa02/0x1ac0 mm/vmscan.c:7452
kswapd+0x677/0xd60 mm/vmscan.c:7712
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
----------------
Code disassembly (best guess):
0: 56 push %rsi
1: 0f 8d 02 66 0f 1f jge 0x1f0f6609
7: 44 00 00 add %r8b,(%rax)
a: f3 0f 1e fa endbr64
e: 48 8b be a8 01 00 00 mov 0x1a8(%rsi),%rdi
15: e8 b0 ff ff ff callq 0xffffffca
1a: 31 c0 xor %eax,%eax
1c: c3 retq
1d: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1)
24: 00 00 00 00
28: 66 90 xchg %ax,%ax
* 2a: f3 0f 1e fa endbr64 <-- trapping instruction
2e: 65 8b 05 8d a7 81 7e mov %gs:0x7e81a78d(%rip),%eax # 0x7e81a7c2
35: 89 c1 mov %eax,%ecx
37: 48 8b 34 24 mov (%rsp),%rsi
3b: 81 .byte 0x81
3c: e1 00 loope 0x3e
3e: 01 00 add %eax,(%rax)