Control: clone -1 -2
Control: reassign -2 gpm
Control: retitle -2 libgpm crashes on calling syslog
Hello,
Ricardo Fabian Peliquero, on dim. 28 janv. 2018 19:35:22 -0300, wrote:
> Aumix is showing segmentation fault if invoked within an X terminal
> emulator (e.g. stterm). This only happens when using the ncurses
> user interface; then 'aumix -v 100' will work as expected.
>
> Besides, it works OK from ordinary tty (e.g. tty1-6).
Well, this is not related with bug 387793 then :)
Looking more into the backtrace
Program terminated with signal SIGSEGV, Segmentation fault.
#0 __strchrnul_avx2 () at ../sysdeps/x86_64/multiarch/strchr-avx2.S:76
76 ../sysdeps/x86_64/multiarch/strchr-avx2.S: Aucun fichier ou dossier de
ce type.
(gdb) bt
#0 __strchrnul_avx2 () at ../sysdeps/x86_64/multiarch/strchr-avx2.S:76
#1 0x00007f88711cbb52 in __find_specmb (
format=0x2573 <error: Cannot access memory at address 0x2573>) at
printf-parse.h:108
#2 _IO_vfprintf_internal (s=s@entry=0x557eed6c76d0,
format=format@entry=0x2573 <error: Cannot access memory at address 0x2573>,
ap=0x7ffff2a3bbf0) at vfprintf.c:1320
#3 0x00007f8871283428 in ___vfprintf_chk (fp=fp@entry=0x557eed6c76d0,
flag=flag@entry=1,
format=format@entry=0x2573 <error: Cannot access memory at address 0x2573>,
ap=ap@entry=0x7ffff2a3bbf0) at vfprintf_chk.c:33
#4 0x00007f887126e777 in __GI___vsyslog_chk (pri=<optimized out>, flag=1,
fmt=0x2573 <error: Cannot access memory at address 0x2573>,
ap=ap@entry=0x7ffff2a3bbf0)
at ../misc/syslog.c:222
#5 0x00007f887126ecbf in __syslog_chk (pri=pri@entry=6, flag=flag@entry=1,
fmt=fmt@entry=0x2573 <error: Cannot access memory at address 0x2573>)
at ../misc/syslog.c:129
#6 0x00007f8871992cdf in syslog (
__fmt=0x2573 <error: Cannot access memory at address 0x2573>, __pri=6)
at /usr/include/x86_64-linux-gnu/bits/syslog.h:31
#7 gpm_report (line=line@entry=478, file=file@entry=0x7f88719934b1
"lib/liblow.c",
stat=stat@entry=3, text=text@entry=0x7f8871993539 "Warning: closing
connection")
at lib/report-lib.c:50
#8 0x00007f8871991b67 in Gpm_GetEvent (event=event@entry=0x7f8871b95420 <ev>)
at lib/liblow.c:478
#9 0x00007f8871992fe8 in Gpm_Wgetch (win=0x557eed6b1cb0) at lib/libcurses.c:87
#10 0x0000557eeb879247 in Inter () at ../../../src/curses.c:366
#11 0x0000557eeb876db7 in main (argc=1, argv=0x7ffff2a3c028) at
../../../src/common.c:283
I saw this gpm patch
debian/patches/092_fix-format-not-a-string-literal-and-no-format-arguments.patch
- syslog(log_level, string);
+ syslog(log_level, '%s', string);
That should obviously rather be
+ syslog(log_level, "%s", string);
:)
Samuel
