https://bugs.exim.org/show_bug.cgi?id=1898
Petr Pisar <ppisar@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ppisar@???
--- Comment #1 from Petr Pisar <ppisar@???> ---
10.21 is fine. The first commit that introduced this bug is:
commit 6bf32bbce61a414df982e36df8d78d88df4602f7
Author: ph10 <ph10@6239d852-aaf2-0410-a92c-79f79f948069>
Date: Sun Jan 31 19:14:15 2016 +0000
Don't set PCRE2_NO_AUTO_CAPTURE when REG_NOSUB is passed to regcomp().
git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@482
6239d852-aaf2-0410-a92c-79f79f948069
I.e. SVN revision 482.
The back trace is:
Program received signal SIGSEGV, Segmentation fault.
strlen () at ../sysdeps/x86_64/strlen.S:106
106 movdqu (%rax), %xmm4
Missing separate debuginfos, use: dnf debuginfo-install
ncurses-libs-6.0-6.20160709.fc24.x86_64 readline-6.3-8.fc24.x86_64
(gdb) info registers
rax 0x65411f 6635807
rbx 0x1 1
rcx 0x11f 287
rdx 0xf 15
rsi 0x65411f 6635807
rdi 0x65411f 6635807
rbp 0x7fffffffd6e0 0x7fffffffd6e0
rsp 0x7fffffffd688 0x7fffffffd688
r8 0x0 0
r9 0x7ffff6d793d0 140737334711248
r10 0x309 777
r11 0x7ffff6cad270 140737333875312
r12 0x404ba0 4213664
r13 0x7fffffffe2b0 140737488347824
r14 0x0 0
r15 0x0 0
rip 0x7ffff6cad296 0x7ffff6cad296 <strlen+38>
eflags 0x10287 [ CF PF SF IF RF ]
cs 0x33 51
ss 0x2b 43
ds 0x0 0
es 0x0 0
fs 0x0 0
gs 0x0 0
(gdb) bt full
#0 strlen () at ../sysdeps/x86_64/strlen.S:106
No locals.
#1 0x00007ffff76fef19 in regexec (preg=0x623cc0 <preg>, string=0x65411f
<error: Cannot access memory at address 0x65411f>, nmatch=0, pmatch=0x642fc0,
eflags=0)
at src/pcre2posix.c:294
rc = 32767
so = 0
eo = 0
options = 0
md = 0x63ef30
#2 0x00000000004143c1 in process_data () at src/pcre2test.c:5828
rc = 0
eflags = 0
pmatch = 0x642fc0
msg = 0x41e508 "** Ignored with POSIX interface:"
len = 0
ulen = 0
gmatched = 0
c = 1
k = 2
g_notempty = 0
p = 0x624012 "offset=70000"
pp = 0x642faf ""
start_rep = 0x0
needlen = 15
use_dat_context = 0x7ffff7de81c3 <_dl_fixup+195>
utf = 0
q8 = 0x63efb0 ""
q16 = 0x0
q32 = 0x0
#3 0x0000000000419bad in main (argc=3, argv=0x7fffffffe2b8) at
src/pcre2test.c:7352
p = 0x624010 "\\=offset=70000"
rc = 0
expectdata = 1
yield = 0
op = 1
stack_size = 0
notdone = 1
quiet = 0
showtotaltimes = 0
skipping = 0
arg_subject = 0x0
arg_pattern = 0x0
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