Package: less Version: 487-0.1+b1 Severity: normal Usertags: crash I just got a crash (SIGABRT) after pressing random keys due to not being awake enough to type properly while viewing the apt-listchanges manual page. Based on the backtrace below, I seem to have toggled some sort of option and passed \\ as a command, which caused the crash.
If the backtrace below is not useful, please close this bug.
$ gdb -batch -n -ex 'set pagination off' -ex bt -ex 'thread apply all bt full'
--core /var/crash/1000/13130-1000-1000-6-1550017848-chianamo--bin-less.core
/bin/less
[New LWP 13130]
Core was generated by `less'.
Program terminated with signal SIGABRT, Aborted.
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
50 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory.
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x00007f8d76b44535 in __GI_abort () at abort.c:79
#2 0x00007f8d76b9b778 in __libc_message (action=action@entry=do_abort,
fmt=fmt@entry=0x7f8d76ca628d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
#3 0x00007f8d76ba1e6a in malloc_printerr (str=str@entry=0x7f8d76ca443b
"free(): invalid pointer") at malloc.c:5341
#4 0x00007f8d76ba5d7e in free_check (mem=<optimized out>, caller=<optimized
out>) at hooks.c:254
#5 0x00005584b493f360 in lglob (filename=0x5584b529e360 "",
filename@entry=0x5584b4b59ac0 <cmdbuf> "\\") at filename.c:811
#6 0x00005584b4944318 in opt_o (type=<optimized out>, s=0x5584b4b59ac0
<cmdbuf> "\\") at optfunc.c:109
#7 0x00005584b4945a70 in toggle_option (o=0x5584b4b58900 <option+1152>,
lower=<optimized out>, s=<optimized out>, how_toggle=1) at option.c:443
#8 0x00005584b493b05d in exec_mca () at command.c:240
#9 0x00005584b493c74c in mca_char (c=10) at command.c:597
#10 commands () at command.c:1069
#11 0x00005584b49351c5 in main (argc=<optimized out>, argv=0x7fff29729320) at
main.c:283
Thread 1 (LWP 13130):
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
set = {__val = {65536, 0 <repeats 15 times>}}
pid = <optimized out>
tid = <optimized out>
ret = <optimized out>
#1 0x00007f8d76b44535 in __GI_abort () at abort.c:79
save_stage = 1
act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1},
sa_mask = {__val = {532575944815, 0, 4096, 94028463467232, 100, 94028463467232,
94028463465376, 94028453691348, 140245559039858, 4096, 140245558958506, 12,
702811210, 1, 140733888761696, 140733888761952}}, sa_flags = 695373664,
sa_restorer = 0x1000}
sigs = {__val = {32, 0 <repeats 15 times>}}
#2 0x00007f8d76b9b778 in __libc_message (action=action@entry=do_abort,
fmt=fmt@entry=0x7f8d76ca628d "%s\n") at ../sysdeps/posix/libc_fatal.c:181
ap = {{gp_offset = 24, fp_offset = 0, overflow_arg_area =
0x7fff29729070, reg_save_area = 0x7fff29729000}}
fd = 2
list = <optimized out>
nlist = <optimized out>
cp = <optimized out>
written = <optimized out>
#3 0x00007f8d76ba1e6a in malloc_printerr (str=str@entry=0x7f8d76ca443b
"free(): invalid pointer") at malloc.c:5341
No locals.
#4 0x00007f8d76ba5d7e in free_check (mem=<optimized out>, caller=<optimized
out>) at hooks.c:254
p = <optimized out>
#5 0x00005584b493f360 in lglob (filename=0x5584b529e360 "",
filename@entry=0x5584b4b59ac0 <cmdbuf> "\\") at filename.c:811
gfilename = 0x5584b529e3a0 "\\\\"
ofilename = 0x5584b529e680 "\\"
#6 0x00005584b4944318 in opt_o (type=<optimized out>, s=0x5584b4b59ac0
<cmdbuf> "\\") at optfunc.c:109
parg = {p_string = 0x0, p_int = 0, p_linenum = 0}
#7 0x00005584b4945a70 in toggle_option (o=0x5584b4b58900 <option+1152>,
lower=<optimized out>, s=<optimized out>, how_toggle=1) at option.c:443
num = <optimized out>
no_prompt = 0
err = 0
parg = {p_string = 0x0, p_int = 0, p_linenum = 0}
#8 0x00005584b493b05d in exec_mca () at command.c:240
cbuf = <optimized out>
#9 0x00005584b493c74c in mca_char (c=10) at command.c:597
ret = <optimized out>
ret = <optimized out>
#10 commands () at command.c:1069
c = 10
action = <optimized out>
cbuf = <optimized out>
newaction = 101
save_search_type = <optimized out>
extra = 0x5584b4b5838c <cmdtable+428> "o"
tbuf = "s"
parg = {p_string = 0x0, p_int = 0, p_linenum = 0}
old_ifile = <optimized out>
new_ifile = <optimized out>
tagfile = <optimized out>
#11 0x00005584b49351c5 in main (argc=<optimized out>, argv=0x7fff29729320) at
main.c:283
ifile = 0x0
s = <optimized out>
-- System Information:
Debian Release: buster/sid
APT prefers testing-debug
APT policy: (900, 'testing-debug'), (900, 'testing'), (800,
'unstable-debug'), (800, 'unstable'), (790, 'buildd-unstable'), (700,
'experimental-debug'), (700, 'experimental'), (690, 'buildd-experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 4.19.0-2-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_FIRMWARE_WORKAROUND, TAINT_OOT_MODULE,
TAINT_UNSIGNED_MODULE
Locale: LANG=en_AU.utf8, LC_CTYPE=en_AU.utf8 (charmap=UTF-8),
LANGUAGE=en_AU.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages less depends on:
ii debianutils 4.8.6.1
ii libc6 2.28-6
ii libtinfo6 6.1+20181013-1
less recommends no packages.
less suggests no packages.
-- no debconf information
--
bye,
pabs
https://wiki.debian.org/PaulWise
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