Corresponding backtrace:
#0 0x00007f24559c2418 in __GI_raise (sig=sig@entry=6) at
../sysdeps/unix/sysv/linux/raise.c:54
resultvar = 0
pid = 14605
selftid = 14605
#1 0x00007f24559c401a in __GI_abort () at abort.c:89
save_stage = 2
act = {__sigaction_handler = {sa_handler = 0x66636666370a5d6b,
sa_sigaction = 0x66636666370a5d6b}, sa_mask = {__val = {3256155514939455845,
7293972561931953719, 3255383588231721059, 3472328296227676272,
3472339291342909488, 2314885530818457632, 2314885530818453536,
2314885530818453536, 7022930802683944992, 7377853203759127922,
3256155514973010277, 7293972561931953719, 8659703141076316261,
3472328296227676272, 3472339291342909488, 2314885530818457632}}, sa_flags =
538976288, sa_restorer = 0x66}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007f2455a0472a in __libc_message (do_abort=do_abort@entry=2,
fmt=fmt@entry=0x7f2455b1d6b0 "*** Error in `%s': %s: 0x%s ***\n") at
../sysdeps/posix/libc_fatal.c:175
ap = <error reading variable ap (Attempt to dereference a generic
pointer.)>
fd = 2
on_2 = <optimized out>
list = <optimized out>
nlist = <optimized out>
cp = <optimized out>
written = <optimized out>
#3 0x00007f2455a0cf4a in malloc_printerr (ar_ptr=<optimized out>,
ptr=<optimized out>, str=0x7f2455b1d7a0 "double free or corruption (top)",
action=3) at malloc.c:5007
buf = "0000558e1a5feac0"
cp = <optimized out>
ar_ptr = <optimized out>
str = 0x7f2455b1d7a0 "double free or corruption (top)"
action = 3
#4 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at
malloc.c:3868
size = <optimized out>
fb = <optimized out>
nextchunk = <optimized out>
nextsize = <optimized out>
nextinuse = <optimized out>
prevsize = <optimized out>
bck = <optimized out>
fwd = <optimized out>
errstr = <optimized out>
locked = <optimized out>
#5 0x00007f2455a10abc in __GI___libc_free (mem=<optimized out>) at
malloc.c:2969
ar_ptr = <optimized out>
p = <optimized out>
hook = <optimized out>
#6 0x0000558e1a28e833 in dns_packet_free (p=0x558e1a5feac0) at
../src/resolve/resolved-dns-packet.c:177
No locals.
#7 dns_packet_unref (p=0x558e1a5feac0) at
../src/resolve/resolved-dns-packet.c:189
__PRETTY_FUNCTION__ = "dns_packet_unref"
#8 0x0000558e1a24de56 in dns_transaction_free (t=t@entry=0x558e1a5e1a70) at
../src/resolve/resolved-dns-transaction.c:87
__func__ = "dns_transaction_free"
__PRETTY_FUNCTION__ = "dns_transaction_free"
#9 0x0000558e1a24e42b in dns_transaction_gc (t=0x558e1a5e1a70) at
../src/resolve/resolved-dns-transaction.c:148
t = 0x558e1a5e1a70
__PRETTY_FUNCTION__ = "dns_transaction_gc"
#10 0x0000558e1a24e57f in dns_transaction_complete (t=0x558e1a5e1a70,
state=<optimized out>) at ../src/resolve/resolved-dns-transaction.c:365
st = <optimized out>
key_str =
"\034'\001\000\000\000\000\000\377\000\000\000\000\000\000\000\r\000\000\000\000\000\000\000\000\n]\032\216U\000\000\001\000\000\000\000\000\000\000\000\240\235\376\374\177\000\000\340\362+\032\216U\000\000\001\000\000\000\216U\000\000\001\000\000\000\000\000\000\000\020\000\000\000\000\000\000\000\021\000\000\000\000\000\000\000\001\000\000\000\216U\000\000\000\n]\032\216U\000\000@\022]\032\216U\000\000@\022]\032\216U\000\000\340\362+\032\216U\000\000\220\214^\032\216U\000\000\220\022_\032\216U\000\000@\022]\032\216U\000\000\340\362+\032\216U\000\000\220\214^\032\216U\000\000\a\000\000\000\000\000\000\000\f\000\000\000\000\000\000\000\000uG\036\215p\037\260\220\022_\032\216U\000\000"...
__PRETTY_FUNCTION__ = "dns_transaction_complete"
__func__ = "dns_transaction_complete"
#11 0x0000558e1a255cbd in dns_transaction_process_dnssec.lto_priv.425
(t=t@entry=0x558e1a5e1a70) at ../src/resolve/resolved-dns-transaction.c:720
r = <optimized out>
__PRETTY_FUNCTION__ = "dns_transaction_process_dnssec"
#12 0x0000558e1a256647 in dns_transaction_process_reply
(t=t@entry=0x558e1a5e1a70, p=p@entry=0x558e1a5e3090) at
../src/resolve/resolved-dns-transaction.c:1002
ts = 17926946249
r = <optimized out>
__PRETTY_FUNCTION__ = "dns_transaction_process_reply"
__func__ = "dns_transaction_process_reply"
#13 0x0000558e1a25745b in on_dns_packet (s=<optimized out>, fd=<optimized out>,
revents=<optimized out>, userdata=0x558e1a5e1a70) at
../src/resolve/resolved-dns-transaction.c:1053
p = 0x558e1a5e3090
t = 0x558e1a5e1a70
r = <optimized out>
__PRETTY_FUNCTION__ = "on_dns_packet"
__func__ = "on_dns_packet"
#14 0x0000558e1a291563 in source_dispatch.lto_priv.501 (s=0x558e1a5fe910) at
../src/libsystemd/sd-event/sd-event.c:2268
r = <optimized out>
__PRETTY_FUNCTION__ = "source_dispatch"
__func__ = "source_dispatch"
#15 0x0000558e1a22c7fc in sd_event_dispatch (e=0x558e1a5d21d0) at
../src/libsystemd/sd-event/sd-event.c:2629
p = <optimized out>
r = <optimized out>
#16 sd_event_run (timeout=18446744073709551615, e=0x558e1a5d21d0) at
../src/libsystemd/sd-event/sd-event.c:2688
r = <optimized out>
#17 sd_event_loop (e=0x558e1a5d21d0) at
../src/libsystemd/sd-event/sd-event.c:2708
r = <optimized out>
#18 main (argc=<optimized out>, argv=<optimized out>) at
../src/resolve/resolved.c:98
m = 0x558e1a5d0660
user = <optimized out>
uid = <optimized out>
gid = <optimized out>
r = <optimized out>
__func__ = "main"
__PRETTY_FUNCTION__ = "main"
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https://bugs.launchpad.net/bugs/1586991
Title:
systemd-resolved crashed with SIGSEGV in
dns_transaction_cache_answer()
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