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[Bug 1047166] New: nano extremely unstable on 42.x
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Tue, 04 Jul 2017 09:12:03 +0000
  • Message-id: <>

Bug ID: 1047166
Summary: nano extremely unstable on 42.x
Classification: openSUSE
Product: openSUSE Distribution
Version: Leap 42.3
Hardware: Other
OS: Other
Status: NEW
Severity: Major
Priority: P5 - None
Component: Other
Assignee: bnc-team-screening@xxxxxxxxxxxxxxxxxxxxxx
Reporter: fvogt@xxxxxxxx
QA Contact: qa-bugs@xxxxxxx
CC: astieger@xxxxxxxx, crrodriguez@xxxxxxxxxxxx
Found By: ---
Blocker: ---

"nano /" (or in fact any other inode/directory) results in a malloc chunk
corruption detected by libc.
Same for using PgDown for scrolling, resulting in instant corruption.

Currently happens always on 42.3, but easily reproducible on 42.2 as well by



#0 0x00007ffff73e38d7 in raise () from /lib64/
#1 0x00007ffff73e4caa in abort () from /lib64/
#2 0x00007ffff74211b4 in __libc_message () from /lib64/
#3 0x00007ffff7426706 in malloc_printerr () from /lib64/
#4 0x00007ffff7429a9c in realloc_check () from /lib64/
#5 0x000000000041f4be in nrealloc (ptr=<optimized out>, howmuch=4) at
#6 0x000000000041f548 in null_at (data=data@entry=0x7fffffffd988,
index=index@entry=3) at utils.c:126
#7 0x0000000000420f65 in display_string (buf=buf@entry=0x7c9400 "„/tmp“ ist
ein Verzeichnis", start_col=5, start_col@entry=0, len=239,
dollars=dollars@entry=false) at winio.c:2005
#8 0x0000000000421b64 in statusbar (msg=0x7ffff7fdfdc1 "„%s“ ist ein
Verzeichnis") at winio.c:2263
#9 0x0000000000409743 in open_file (filename=filename@entry=0x7fffffffe6d3
"/tmp", newfie=newfie@entry=true, quiet=<optimized out>,
f=f@entry=0x7fffffffdc38) at files.c:944
#10 0x000000000040c3c3 in open_buffer (filename=0x7fffffffe6d3 "/tmp",
undoable=undoable@entry=false) at files.c:367
#11 0x00000000004046cd in main (argc=2, argv=0x7fffffffe338) at nano.c:2746


==29216== Invalid write of size 1
==29216== at 0x406845: parse_mbchar (chars.c:422)
==29216== by 0x420CA9: display_string (winio.c:1940)
==29216== by 0x421B63: statusbar (winio.c:2263)
==29216== by 0x409742: open_file (files.c:944)
==29216== by 0x40C3C2: open_buffer (files.c:367)
==29216== by 0x4046CC: main (nano.c:2746)
==29216== Address 0x5ce56d2 is 0 bytes after a block of size 2 alloc'd
==29216== at 0x4C2B47E: realloc (in
==29216== by 0x41F4BD: nrealloc (utils.c:398)
==29216== by 0x41F547: null_at (utils.c:126)
==29216== by 0x420F64: display_string (winio.c:2005)
==29216== by 0x421B63: statusbar (winio.c:2263)
==29216== by 0x409742: open_file (files.c:944)
==29216== by 0x40C3C2: open_buffer (files.c:367)
==29216== by 0x4046CC: main (nano.c:2746)

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