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authorDenys Vlasenko <vda.linux@googlemail.com>2018-07-27 12:14:39 +0200
committerDenys Vlasenko <vda.linux@googlemail.com>2018-07-27 12:14:39 +0200
commit186cf4976768029113cf8438734a65bf2c489c5c (patch)
tree0b2c2a4acad5472d65d87d7274cf91da2152d6b4 /init
parent7c5f18a3bab721cdfa515220ad8d481643aaae23 (diff)
downloadbusybox-186cf4976768029113cf8438734a65bf2c489c5c.tar.gz
hush: in some cases, expand_on_ifs() relied of uninitialized memory
The n > 0 check to prevent access to the last byte of non-existing argv[-1] wasn't enough. Switched to making sure there are initialized (zero) bytes there. A predictable testcase is rather hard to construct, unfortunately, contents of memory depends on allocator behavior and whatnot. function old new delta o_save_ptr_helper 119 137 +18 expand_on_ifs 345 339 -6 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 1/1 up/down: 18/-6) Total: 12 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'init')
0 files changed, 0 insertions, 0 deletions