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FreeBSD lock order reversal (LOR) #89

ID 89
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LOR
lock order reversal
1st 0xc08bf540 crypto (crypto op queues) @ sys/opencrypto/crypto.c:669
2nd 0xc08713e0 ipf filter rwlock (ipf filter rwlock) @ sys/contrib/ipfilter/netinet/fil.c:1135
		
KDB: stack backtrace:
kdb_backtrace(0,ffffffff,c0894e58,c0894700,c082a50c) at kdb_backtrace+0x29
witness_checkorder(c08713e0,1,c079810a,46f) at witness_checkorder+0x544
_sx_slock(c08713e0,c079810a,46f,0,0) at _sx_slock+0x50
fr_check(c2c1e0ec,14,c2aa9800,1,d5bc76e4) at fr_check+0x368
fr_check_wrapper(0,d5bc76e4,c2aa9800,2,0) at fr_check_wrapper+0x2a
pfil_run_hooks(c08bbd00,d5bc777c,c2aa9800,2,0) at pfil_run_hooks+0xbd
ip_output(c2c1e000,0,0,2,0) at ip_output+0x8c4
ipsec_process_done(c2c1e000,c2eaa600,c30c8000,c2e8da00,c0837360) at ipsec_process_done+0x165
esp_output_cb(c30c8000) at esp_output_cb+0x1eb
crypto_done(c30c8000,2,1,0,c30c8000) at crypto_done+0xa8
swcr_process(0,c30c8000,0,1,6000000) at swcr_process+0x146
crypto_invoke(c30c8000,0,30,c0837518,c2e8da24) at crypto_invoke+0x132
crypto_dispatch(c30c8000,d5bc78e0,c30c8000,c30ca000,c2eaa888) at crypto_dispatch+0x6e
esp_output(c2c1e000,c2eaa600,0,14,9) at esp_output+0x59a
ipsec4_process_packet(c307d900,c2eaa600,1,0,c08b861c) at ipsec4_process_packet+0x22a
ip_output(c307d900,0,0,1,0) at ip_output+0x84a
ip_forward(c307d900,0) at ip_forward+0x4e9
ip_input(c307d900) at ip_input+0x88b
netisr_processqueue(c08b9598) at netisr_processqueue+0x6e
swi_net(0) at swi_net+0xc2
ithread_loop(c29d5a80,d5bc7d48,c29d5a80,c05e43fc,0) at ithread_loop+0x124
fork_exit(c05e43fc,c29d5a80,d5bc7d48) at fork_exit+0xa4
fork_trampoline() at fork_trampoline+0x8
--- trap 0x1, eip = 0, esp = 0xd5bc7d7c, ebp = 0 ---
		
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