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authorSahitya Tummala2019-09-17 10:19:23 +0530
committerJaegeuk Kim2019-09-17 13:56:15 -0700
commitfbbf779989d2ef9a51daaa4e53c0b2ecc8c55c4e (patch)
tree2f12ef343c175b800765c41ba913dc430059e50f /tools/include
parent8223ecc456d079ef9b7a1fed237134cf62e9e870 (diff)
f2fs: add a condition to detect overflow in f2fs_ioc_gc_range()
end = range.start + range.len; If the range.start/range.len is a very large value, then end can overflow in this operation. It results into a crash in get_valid_blocks() when accessing the invalid range.start segno. This issue is reported in ioctl fuzz testing. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'tools/include')
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