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Re: [tor-bugs] #24555 [Core Tor/Tor]: Bug: tor_gmtime_r overflow - gmtime(9223372036854775807) failed with error No error
#24555: Bug: tor_gmtime_r overflow - gmtime(9223372036854775807) failed with error
No error
-------------------------------------------------+-------------------------
Reporter: s7r | Owner: (none)
Type: defect | Status: new
Priority: Medium | Milestone: Tor:
| 0.3.3.x-final
Component: Core Tor/Tor | Version: Tor:
| unspecified
Severity: Normal | Resolution:
Keywords: integer-overflow time-overflow tor- | Actual Points:
relay 2038-problem |
Parent ID: #18480 | Points:
Reviewer: | Sponsor:
-------------------------------------------------+-------------------------
Comment (by arma):
{{{
#2 0x00007f418dd5fbe6 in correct_tm (islocal=0, timep=0x7fff2d162b18,
resultbuf=<value optimized out>, r=<value optimized out>)
at src/common/compat.c:2974
#3 0x00007f418dd72c5c in format_iso_time (
buf=0x7fff2d162c60 "2018-01-13 02:00:00", t=9223372036854775807)
at src/common/util.c:1777
#4 0x00007f418dc767e6 in update_consensus_router_descriptor_downloads (
now=1515201474, is_vote=756427840, consensus=0x7f419edbb550)
at src/or/routerlist.c:5217
#5 0x00007f418dc76c80 in update_all_descriptor_downloads (now=1515201474)
at src/or/routerlist.c:4562
#6 0x00007f418dc24660 in directory_info_has_arrived (now=1515201474,
from_cache=0, suppress_logs=0) at src/or/main.c:1116
#7 0x00007f418dd08b6d in handle_response_fetch_consensus (
conn=<value optimized out>) at src/or/directory.c:2631
#8 connection_dir_client_reached_eof (conn=<value optimized out>)
at src/or/directory.c:2487
#9 connection_dir_reached_eof (conn=<value optimized out>)
at src/or/directory.c:3357
#10 0x00007f418dcddd15 in connection_reached_eof (conn=0x7f41a74f6970)
at src/or/connection.c:4696
#11 connection_handle_read_impl (conn=0x7f41a74f6970)
at src/or/connection.c:3503
#12 connection_handle_read (conn=0x7f41a74f6970) at
src/or/connection.c:3516
#13 0x00007f418dc27811 in conn_read_callback (fd=<value optimized out>,
event=<value optimized out>, _conn=0x7f41a74f6970) at
src/or/main.c:861
#14 0x00007f418ddd3414 in event_persist_closure ()
#15 0x00007f418ddd3725 in event_process_active_single_queue ()
#16 0x00007f418ddd3db5 in event_process_active ()
#17 0x00007f418ddd4519 in event_base_loop ()
#18 0x00007f418dc24a8b in run_main_loop_once () at src/or/main.c:2780
#19 run_main_loop_until_done () at src/or/main.c:2852
#20 do_main_loop () at src/or/main.c:2735
#21 0x00007f418dc2506b in tor_run_main (tor_cfg=<value optimized out>)
at src/or/main.c:4016
#22 0x00007f418dc1f953 in tor_main (argc=3, argv=0x7fff2d163318)
at src/or/tor_api.c:84
#23 0x00007f418dc1f7e9 in main (argc=<value optimized out>,
argv=<value optimized out>) at src/or/tor_main.c:22
}}}
{{{
(gdb) up
#3 0x00007f418dd72c5c in format_iso_time (
buf=0x7fff2d162c60 "2018-01-13 02:00:00", t=9223372036854775807)
at src/common/util.c:1777
1777 strftime(buf, ISO_TIME_LEN+1, "%Y-%m-%d %H:%M:%S",
tor_gmtime_r(&t, &tm));
(gdb) print t
$3 = 9223372036854775807
}}}
{{{
(gdb) up
#4 0x00007f418dc767e6 in update_consensus_router_descriptor_downloads (
now=1515201474, is_vote=756427840, consensus=0x7f419edbb550)
at src/or/routerlist.c:5217
5217 format_iso_time(time_cert_expires,
ri->cert_expiration_time);
(gdb) print *ri
value has been optimized out
(gdb) print ri->cert_expiration_time
value has been optimized out
(gdb) print time_cert_expires
$4 = "2018-01-13 02:00:00"
}}}
Hello, what is this "is_vote=756427840"?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24555#comment:7>
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