panic: Assertion M_WRITABLE(m0) failed at /syzkaller/managers/main/kernel/sys/kern/uipc_mbuf.c:1284
cpuid = 1
time = 3
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0xc6/frame 0xfffffe005713dc30
kdb_backtrace() at kdb_backtrace+0xd0/frame 0xfffffe005713dd90
vpanic() at vpanic+0x280/frame 0xfffffe005713df50
panic() at panic+0xb5/frame 0xfffffe005713e010
m_copyback() at m_copyback+0xa6f/frame 0xfffffe005713e1f0
aesni_cipher_crypt() at aesni_cipher_crypt+0xbbd/frame 0xfffffe005713e330
aesni_process() at aesni_process+0x227/frame 0xfffffe005713e370
crypto_invoke() at crypto_invoke+0x25f/frame 0xfffffe005713e4a0
crypto_dispatch_one() at crypto_dispatch_one+0x185/frame 0xfffffe005713e4d0
ktls_ocf_dispatch() at ktls_ocf_dispatch+0x10c/frame 0xfffffe005713e5b0
ktls_ocf_tls_cbc_encrypt() at ktls_ocf_tls_cbc_encrypt+0xdc3/frame 0xfffffe005713e790
ktls_encrypt() at ktls_encrypt+0x1d5/frame 0xfffffe005713eb50
ktls_work_thread() at ktls_work_thread+0x805/frame 0xfffffe005713eef0
fork_exit() at fork_exit+0xcc/frame 0xfffffe005713ef30
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe005713ef30
--- trap 0xc, rip = 0x329c1c, rsp = 0x8240e5ee8, rbp = 0x8240e5f10 ---
KDB: enter: panic
[ thread pid 1771 tid 100420 ]
Stopped at      kdb_enter+0x6e: movq    $0,0x23e2e77(%rip)
db> 
db> set $lines = 0
db> set $maxwidth = 0
db>