Bug#1040452: libc6: upgrading libc6 to version 2.37-3 break almost every program (especially in a shell)
Package: libc6
Version: 2.37-3
Severity: important
Dear maintainers,
I've just upgraded to libc6 2.37-3 and now I have an almost broken
system. But broken in a very weird way: the graphical user interface
(KDE Plasma) is coming up, I can start big programs like Firefox,
Thunderbird, etc., but as soon as I go to a shell — it doesn't matter if
I'm inside or outside the graphical session, ie. tty2 vs. tty3 — I can
execute almost no program. ldd works, surprisingly gdb works as well,
but eg. man or apt-get or perl do not. They all end with
$ man apt-get
Segmentation fault (core dumped)
Since gdb is working, I got a backtrace, even though that is not that
helpful, I fear.
$ gdb --args man apt-get
GNU gdb (Debian 13.2-1) 13.2
[...]
Reading symbols from man...
(No debugging symbols found in man)
(gdb) r
Starting program: /usr/bin/man apt-get
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
0x00007ffa2b4f8f36 in towlower () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt full
#0 0x00007ffa2b4f8f36 in towlower () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#1 0x00007ffa2b4c6d49 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#2 0x00007ffa2b4c826d in fnmatch () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#3 0x0000561538c0ca49 in ?? ()
No symbol table info available.
#4 0x0000561538c0d042 in ?? ()
No symbol table info available.
#5 0x0000561538c1018c in ?? ()
No symbol table info available.
#6 0x0000561538c1329b in ?? ()
No symbol table info available.
#7 0x0000561538c0b786 in ?? ()
No symbol table info available.
#8 0x00007ffa2b4136ca in ?? () from /lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#9 0x00007ffa2b413785 in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
No symbol table info available.
#10 0x0000561538c0bca1 in ?? ()
No symbol table info available.
(gdb) info registers
rax 0x7ffa2b084e98 140712440516248
rbx 0x7ffca64594a0 140723098064032
rcx 0x7ffa2b084e98 140712440516248
rdx 0x30 48
rsi 0x2010201 33620481
rdi 0x61 97
rbp 0x10 0x10
rsp 0x7ffca6456748 0x7ffca6456748
r8 0x10 16
r9 0x0 0
r10 0x7ffca6458e70 140723098062448
r11 0x7ffca64594a0 140723098064032
r12 0x7ffca6459090 140723098062992
r13 0x61 97
r14 0x10 16
r15 0x7ffca6459094 140723098062996
rip 0x7ffa2b4f8f36 0x7ffa2b4f8f36 <towlower+70>
eflags 0x10246 [ PF ZF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
Perl was failing with a call to towupper().
The KDE session is also incomplete, eg. audio devices are no longer found.
During the update I saw errors towards the end (post-install scripts)
for libc6 (and some others, which should not matter here). Ie. the
post-install script could not be executed with the core
dumped/segmentation fault.
It also doesn't matter what shell I use, I've tried bash and dash.
This might be related to #1040140
reportbug is not working either, so you have to do without the
automatically generated system information, but I do try to reproduce it
here as close as I can.
Now I will try to downgrade my system and get it fully functional again.
Cheers,
Kai
-- System Information:
Debian Release: trixie/sid
APT prefers testing
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 6.3.0-1-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.3.7-1
(2023-06-12) x86_64 GNU/Linux
Locale: LANG=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
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