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authorHerbert Xu <herbert@gondor.apana.org.au>2018-03-25 16:38:00 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2018-04-02 23:30:44 +0800
commit0f3806dd899ace97d5909f195882697ef9dd1eaa (patch)
tree2d61861bf874ce560afb4a1017c7c099209140dd /src/machdep.h
parentbuiltin: Move echo space/nl handling into print_escape_str (diff)
downloaddash-0f3806dd899ace97d5909f195882697ef9dd1eaa.tar.gz
dash-0f3806dd899ace97d5909f195882697ef9dd1eaa.zip
expand: Fix buffer overflow in expandmeta
The native version of expandmeta allocates a buffer that may be
overrun for two reasons.  First of all the size is 1 byte too small
but this is normally hidden because the minimum size is rounded
up to 2048 bytes.  Secondly, if the directory level is deep enough,
any buffer can be overrun.

This patch fixes both problems by calling realloc when necessary.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions
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