From: Roman Perepelitsa <roman.perepelitsa@gmail.com>
To: Zsh hackers list <zsh-workers@zsh.org>
Subject: [BUG] Crash when accessing WIDGETSTYLE from SIGINT trap
Date: Mon, 11 Nov 2019 15:38:46 +0100 [thread overview]
Message-ID: <CAN=4vMoahC2c4XHV9vE+Ohkx9rO00unZ0rC=E39yWfoSm4KKiw@mail.gmail.com> (raw)
To reproduce:
1. Type `zsh -df`.
2. Type `trap ': $WIDGETSTYLE; return 130' INT`.
3. Press Ctrl-C.
4. Press Ctrl-C.
% zsh -df
adam% trap ': $WIDGETSTYLE; return 130' INT
adam%
adam% zsh: segmentation fault (core dumped) zsh -df
Stack trace:
#0 get_widgetstyle (pm=0x55d039ec4170) at zle_params.c:436
#1 0x000055d03838591b in getstrvalue (v=0x7ffc0b0c23b0)
at params.c:2196
#2 0x000055d0383b34c5 in paramsubst (l=0x7fa2e862ee48,
n=0x7fa2e862ee78, str=0x7ffc0b0c2480, qt=0, pf_flags=0,
ret_flags=0x7ffc0b0c2594) at subst.c:2679
#3 0x000055d0383ae44a in stringsubst (list=0x7fa2e862ee48,
node=0x7fa2e862ee78, pf_flags=0, ret_flags=0x7ffc0b0c2594,
asssub=0) at subst.c:322
#4 0x000055d0383ad716 in prefork (list=0x7fa2e862ee48,
flags=0, ret_flags=0x7ffc0b0c2594) at subst.c:142
#5 0x000055d038338040 in execcmd_exec (state=0x7ffc0b0c2ec0,
eparams=0x7ffc0b0c2ae0, input=0, output=0, how=2, last1=2,
close_if_forked=-1) at exec.c:3178
#6 0x000055d038334a3a in execpline2 (state=0x7ffc0b0c2ec0,
pcode=131, how=2, input=0, output=0, last1=0) at exec.c:1930
#7 0x000055d0383335dd in execpline (state=0x7ffc0b0c2ec0,
slcode=4098, how=2, last1=0) at exec.c:1660
#8 0x000055d038332880 in execlist (state=0x7ffc0b0c2ec0,
dont_change_job=1, exiting=0) at exec.c:1415
#9 0x000055d038331ebc in execode (p=0x55d039eb58f0,
dont_change_job=1, exiting=0, context=0x55d0383dab37 "trap")
at exec.c:1194
#10 0x000055d0383ab02b in dotrapargs (sig=2,
sigtr=0x55d038604648 <sigtrapped+8>, sigfn=0x55d039eb58f0)
at signals.c:1381
#11 0x000055d0383ab5c1 in dotrap (sig=2) at signals.c:1487
#12 0x000055d0383aac14 in handletrap (sig=2) at signals.c:1202
#13 0x000055d0383a9423 in zhandler (sig=2) at signals.c:670
#14 <signal handler called>
#15 0x00007fa2e7756081 in __GI___libc_read (fd=10,
buf=0x7ffc0b0c44c3, nbytes=1)
at ../sysdeps/unix/sysv/linux/read.c:27
#16 0x00007fa2e5fdaead in raw_getbyte (do_keytmout=0,
cptr=0x7ffc0b0c44c3 "\347\242\177", full=1)
at zle_main.c:849
#17 0x00007fa2e5fdb16e in getbyte (do_keytmout=0, timeout=0x0,
full=1) at zle_main.c:884
#18 0x00007fa2e5fd99ce in getkeybuf (w=0) at zle_keymap.c:1676
#19 0x00007fa2e5fd9776 in getkeymapcmd (km=0x55d039eb81d0,
funcp=0x7ffc0b0c4630, strp=0x7ffc0b0c4638)
at zle_keymap.c:1587
#20 0x00007fa2e5fd9a4c in getkeycmd () at zle_keymap.c:1705
#21 0x00007fa2e5fdb945 in zlecore () at zle_main.c:1128
#22 0x00007fa2e5fdc3e9 in zleread (lp=0x55d0385ffe20 <prompt>,
rp=0x0, flags=3, context=0,
init=0x7fa2e60065c0 "zle-line-init",
finish=0x7fa2e60065b0 "zle-line-finish") at zle_main.c:1350
#23 0x00007fa2e5fdf52b in zle_main_entry (cmd=1,
ap=0x7ffc0b0c48c0) at zle_main.c:2119
#24 0x000055d03835d876 in zleentry (cmd=1) at init.c:1616
#25 0x000055d03835eb8d in inputline () at input.c:295
#26 0x000055d03835e9d1 in ingetc () at input.c:228
#27 0x000055d038350945 in ihgetc () at hist.c:408
#28 0x000055d038368e99 in gettok () at lex.c:611
#29 0x000055d038368576 in zshlex () at lex.c:275
#30 0x000055d0383903b0 in parse_event (endtok=37) at parse.c:581
#31 0x000055d03835995e in loop (toplevel=1, justonce=0)
at init.c:150
#32 0x000055d03835dd38 in zsh_main (argc=2, argv=0x7ffc0b0c4d88)
at init.c:1770
#33 0x000055d03830f0b7 in main (argc=2, argv=0x7ffc0b0c4d88)
at ./main.c:93
Crash at zle_params.c:436 due to bindk being null:
Widget widget = bindk->widget;
Roman.
next reply other threads:[~2019-11-11 14:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20191111143952eucas1p2784d9821f292f2c9c136b19da5a56ade@eucas1p2.samsung.com>
2019-11-11 14:38 ` Roman Perepelitsa [this message]
2019-11-11 14:58 ` Peter Stephenson
2019-11-11 15:37 ` Daniel Shahaf
2019-11-11 15:40 ` Roman Perepelitsa
2019-11-11 15:46 ` Peter Stephenson
2019-11-12 14:56 ` Mikael Magnusson
2019-11-13 16:11 ` Roman Perepelitsa
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