uvm_fault(0xffffff003f12c840, 0x600011c, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at m_free+0x2a: movswq 0x1c(%r14),%rdx
ddb>
ddb> set $lines = 0
ddb> show panic
kernel page fault
uvm_fault(0xffffff003f12c840, 0x600011c, 0, 1) -> e
m_free(6000100) at m_free+0x2a sys/kern/uipc_mbuf.c:423
end trace frame: 0xffff800014a28840, count: 0
ddb> trace
m_free(6000100) at m_free+0x2a sys/kern/uipc_mbuf.c:423
mq_purge(ffff800001af8000) at mq_purge+0x6d m_freem sys/kern/uipc_mbuf.c:525 [inline]
mq_purge(ffff800001af8000) at mq_purge+0x6d ml_purge sys/kern/uipc_mbuf.c:1591 [inline]
mq_purge(ffff800001af8000) at mq_purge+0x6d sys/kern/uipc_mbuf.c:1695
switchclose(ffff8000ffffc260,ffff800014a288b8,ffffffff81524907,ffff800014a28860) at switchclose+0x77 sys/net/switchctl.c:323
spec_close(ffffffff81e38cc0) at spec_close+0x271 sys/kern/spec_vnops.c:553
VOP_CLOSE(ffffff002c51ceb8,ffff8000ffffc260,ffffff003f7c7960,3) at VOP_CLOSE+0x5f sys/kern/vfs_vops.c:174
vn_closefile(ffff8000ffffc260,ffffff00376903c0) at vn_closefile+0xfc vn_close sys/kern/vfs_vnops.c:289 [inline]
vn_closefile(ffff8000ffffc260,ffffff00376903c0) at vn_closefile+0xfc sys/kern/vfs_vnops.c:575
fdrop(ffffff00376903c0,ffff8000ffffc260) at fdrop+0xa4 sys/kern/kern_descrip.c:1260
closef(ffff8000ffffc260,ffffff003f7c6350) at closef+0xd5 sys/kern/kern_descrip.c:1244
fdfree(ffff8000149cf008) at fdfree+0x98 sys/kern/kern_descrip.c:1176
exit1(ffff800014a28b80,ffff8000ffffc260,ffff8000149cf008) at exit1+0x22f sys/kern/kern_exit.c:194
sys_exit(ffffffff8137fb93,ffff800014a28aa0,ffff800014a28b80) at sys_exit+0x13 sys/kern/kern_exit.c:94
syscall(0) at syscall+0x3e4
Xsyscall(6,1,0,1,0,7f7ffffdfe30) at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7ffffdfde0, count: -13
ddb> show registers
rdi 0x7
rsi 0xf0
rbp 0xffff800014a28810
rbx 0xffffffff81524890 switchclose
rdx 0xffff800014a28720
rcx 0xffffffff81e62c80 mbstat_boot_boot_cpumem
rax 0
r8 0
r9 0
r10 0
r11 0xffffffff817102f0 pool_lock_mtx_leave
r12 0xffffff00354d8800
r13 0x236161bc
r14 0x6000100 __kernel_end_phys+0x4000100
r15 0x6000100 __kernel_end_phys+0x4000100
rip 0xffffffff812802fa m_free+0x2a
cs 0x8
rflags 0x10286 __ALIGN_SIZE+0xf286
rsp 0xffff800014a287f0
ss 0x10
m_free+0x2a: movswq 0x1c(%r14),%rdx
ddb> show proc
PROC (syz-executor0) pid=291387 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=86, usrpri=86, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffffc4b8,0xffffffff81eaa310
process=0xffff8000149cf008 user=0xffff800014a23000, vmspace=0xffffff003f12c840
estcpu=36, cpticks=3, pctcpu=0.0
user=0, sys=1, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
99543 23299 1 0 3 0x100083 ttyin getty
80585 32806 0 0 3 0x14200 bored sosplice
57444 501905 87821 0 3 0x82 nanosleep syz-executor0
82250 312331 87821 0 3 0x2 biowait syz-executor1
87821 180984 96365 0 3 0x82 thrsleep syz-fuzzer
87821 176654 96365 0 3 0x4000082 nanosleep syz-fuzzer
87821 472331 96365 0 3 0x4000082 thrsleep syz-fuzzer
87821 68190 96365 0 3 0x4000082 thrsleep syz-fuzzer
87821 356916 96365 0 3 0x4000082 thrsleep syz-fuzzer
87821 295991 96365 0 3 0x4000082 thrsleep syz-fuzzer
87821 275227 96365 0 3 0x4000082 kqread syz-fuzzer
96365 469710 72843 0 3 0x10008a pause ksh
72843 84642 63305 0 3 0x92 select sshd
63305 192385 1 0 3 0x80 select sshd
1126 502807 47791 73 2 0x100090 syslogd
47791 338467 1 0 3 0x100082 netio syslogd
45021 404745 1 77 3 0x100090 poll dhclient
27178 311332 1 0 3 0x80 poll dhclient
79105 219805 0 0 2 0x14200 zerothread
39981 360629 0 0 3 0x14200 aiodoned aiodoned
76996 378627 0 0 3 0x14200 syncer update
60458 41607 0 0 3 0x14200 cleaner cleaner
34321 408316 0 0 3 0x14200 reaper reaper
69281 233595 0 0 3 0x14200 pgdaemon pagedaemon
47806 347339 0 0 3 0x14200 bored crynlk
71049 503022 0 0 3 0x14200 bored crypto
59358 383180 0 0 3 0x40014200 acpi0 acpi0
48947 238099 0 0 3 0x14200 bored softnet
81371 42480 0 0 3 0x14200 bored systqmp
92605 312111 0 0 3 0x14200 bored systq
5306 131941 0 0 3 0x40014200 bored softclock
7393 186193 0 0 3 0x40014200 idle0
1 268145 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper