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69793Re: Patch 7.3.970

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  • Bram Moolenaar
    May 19, 2013
      Ron Aaron wrote:

      > Crashes for me:
      >
      > (gdb) bt
      > #0 0xb7fdd424 in __kernel_vsyscall ()
      > #1 0xb75391df in __GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
      > #2 0xb753c825 in __GI_abort () at abort.c:91
      > #3 0xb757639a in __libc_message (do_abort=2, fmt=0xb766e6c7 "*** %s ***: %s terminated\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:201
      > #4 0xb760f105 in __GI___fortify_fail (msg=0xb766e648 "buffer overflow detected") at fortify_fail.c:38
      > #5 0xb760deba in __GI___chk_fail () at chk_fail.c:29
      > #6 0x08191a77 in nfa_regatom ()
      > #7 0x08193a74 in nfa_regconcat ()
      > #8 0x08194000 in nfa_regbranch ()
      > #9 0x081940e8 in nfa_reg ()
      > #10 0x08194ee1 in nfa_regcomp ()
      > #11 0x081a3fc9 in vim_regcomp ()
      > #12 0x080e10f9 in do_autocmd_event ()
      > #13 0x080e1403 in do_autocmd ()
      > #14 0x080b9c4d in ex_autocmd ()
      > #15 0x080c128c in do_one_cmd ()
      > #16 0x080c424b in do_cmdline ()
      > #17 0x080b4f7f in do_source ()
      > #18 0x080b58c9 in do_in_runtimepath.constprop.8 ()
      > #19 0x080b8bf6 in ex_filetype ()
      > #20 0x080c128c in do_one_cmd ()
      > #21 0x080c424b in do_cmdline ()
      > #22 0x080b4f7f in do_source ()
      > #23 0x080558ac in main ()

      I cannot reproduce it.

      Can you find out where in nfa_regatom() this happens?

      Hmm, maybe it inlines nfa_recognize_char_class(). The myconfig buffer
      there needs to be 10 chars instead of 9.

      --
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      /// Bram Moolenaar -- Bram@... -- http://www.Moolenaar.net \\\
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