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Re: heap out of bounds read in scan_reference_target


From: Gavin Smith
Subject: Re: heap out of bounds read in scan_reference_target
Date: Mon, 23 Jan 2017 20:32:09 +0000

On 22 January 2017 at 12:36, Hanno Böck <address@hidden> wrote:
> The attached file causes an out of bounds memory read in
> scan_reference-target().
>
> Address Sanitizer stack trace:
> ==27654==ERROR: AddressSanitizer: heap-buffer-overflow on address 
> 0x60300000d974 at pc 0x00000052b60a bp 0x7ffcec9c1b70 sp 0x7ffcec9c1b68
> READ of size 1 at 0x60300000d974 thread T0
>     #0 0x52b609 in scan_reference_target 
> /f/texinfo/trunk/info/info-utils.c:1317:7
>     #1 0x52b609 in scan_node_contents /f/texinfo/trunk/info/info-utils.c:1679
>     #2 0x54ca37 in info_node_of_tag_ext /f/texinfo/trunk/info/nodes.c:1449:11
>     #3 0x54ade9 in info_node_of_tag /f/texinfo/trunk/info/nodes.c:1490:10
>     #4 0x54ade9 in info_get_node_of_file_buffer 
> /f/texinfo/trunk/info/nodes.c:1114
>     #5 0x54a5f3 in info_get_node_with_defaults 
> /f/texinfo/trunk/info/nodes.c:997:14
>     #6 0x56dea2 in dump_node_to_stream /f/texinfo/trunk/info/session.c:3764:10
>     #7 0x56db72 in dump_nodes_to_file /f/texinfo/trunk/info/session.c:3727:11
>     #8 0x531e19 in main /f/texinfo/trunk/info/info.c:1073:7
>     #9 0x7fd9c4f9f78f in __libc_start_main (/lib64/libc.so.6+0x2078f)
>     #10 0x41a598 in _start (/old-ram1/texinfo/ginfo+0x41a598)

Thanks, it should be fixed now.



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