Package: dhcpcd-base
Version: 9.4.1-11
Severity: important
Dear Maintainer,
I am getting SEGV from the dhcpcd management process while
trying to connect some particular network.
Things works fine when interface is confugured for the first time.
The crash is occured after reconnection/reconfiguration.
Here is the backtrace.
#0 0x5654ac43dffc in memcpy (__len=4, __src=0x5654ad7ad5cb, __dest=0x0)
at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:29
#1 get_option (ctx=ctx@entry=0x7ffc25675830, bootp=bootp@entry=0x5654ad7ad4d0,
bootp_len=bootp_len@entry=354, opt=opt@entry=51,
opt_len=opt_len@entry=0x7ffc25675670) at ./src/dhcp.c:263
#2 0x5654ac43feec in get_option_uint32 (option=51 '3', bootp_len=354,
bootp=0x5654ad7ad4d0, i=0x5654ad799764, ctx=0x7ffc25675830) at
./src/dhcp.c:309
#3 get_lease (ifp=ifp@entry=0x5654ad799400, lease=lease@entry=0x5654ad799758,
bootp=0x5654ad7ad4d0, len=354) at ./src/dhcp.c:1440
#4 0x5654ac443188 in dhcp_start1 (arg=0x5654ad799400) at ./src/dhcp.c:4037
#5 0x5654ac42c1b2 in eloop_start (eloop=0x5654ad7aaba0,
signals=signals@entry=0x7ffc25675a78) at ./src/eloop.c:736
#6 0x5654ac425510 in main (argc=, argv=,
envp=) at ./src/dhcpcd.c:2553
ctx->opt_buffer is NULL at ./src/dhcp.c:263 while ctx->opt_buffer_len is 8
This shouldn't happen, I guess.
Unfortunately, the option parsing code looks too tricky to me to investigate
further.
