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Re: AddressSanitizer: heap-buffer-overflow lib/readline/bind.c:437 in rl


From: Eduardo Bustamante
Subject: Re: AddressSanitizer: heap-buffer-overflow lib/readline/bind.c:437 in rl_translate_keyseq
Date: Mon, 1 May 2017 23:58:09 -0500

Thanks, the latest commit no longer crashes on any of the malformed input files.

There's still a memory leak I hadn't noticed before:

address@hidden:~/src/gnu/bash$ ./bash
bash-4.4$ bind '\xx":""'
bash-4.4$ exit

=================================================================
==27221==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 1 byte(s) in 1 object(s) allocated from:
    #0 0x7fb6f4005d28 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.3+0xc1d28)
    #1 0x55bde930f53f in xmalloc /home/dualbus/src/gnu/bash/xmalloc.c:112
    #2 0x55bde939a4ff in rl_macro_bind
/home/dualbus/src/gnu/bash/lib/readline/bind.c:308
    #3 0x55bde93a0445 in rl_parse_and_bind
/home/dualbus/src/gnu/bash/lib/readline/bind.c:1461
    #4 0x55bde931059d in bind_builtin bind.def:282
    #5 0x55bde924993a in execute_builtin
/home/dualbus/src/gnu/bash/execute_cmd.c:4605
    #6 0x55bde924b550 in execute_builtin_or_function
/home/dualbus/src/gnu/bash/execute_cmd.c:5103
    #7 0x55bde9248dd0 in execute_simple_command
/home/dualbus/src/gnu/bash/execute_cmd.c:4391
    #8 0x55bde9236ccf in execute_command_internal
/home/dualbus/src/gnu/bash/execute_cmd.c:811
    #9 0x55bde9235402 in execute_command
/home/dualbus/src/gnu/bash/execute_cmd.c:393
    #10 0x55bde9205606 in reader_loop /home/dualbus/src/gnu/bash/eval.c:172
    #11 0x55bde92009ed in main /home/dualbus/src/gnu/bash/shell.c:794
    #12 0x7fb6f37982b0 in __libc_start_main
(/lib/x86_64-linux-gnu/libc.so.6+0x202b0)

SUMMARY: AddressSanitizer: 1 byte(s) leaked in 1 allocation(s).



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