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lz4: Fix pointer overflow

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This commit is contained in:
Toomas Soome 2016-02-12 16:31:23 +01:00 committed by Vladimir Serbinenko
parent feef882f98
commit ce01054ec3
1 changed files with 2 additions and 0 deletions
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2
grub-core/fs/zfs/zfs_lz4.c
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@ -184,6 +184,8 @@ LZ4_uncompress_unknownOutputSize(const char *source,
} }
} }
/* copy literals */ /* copy literals */
if ((grub_addr_t) length > ~(grub_addr_t)op)
goto _output_error;
cpy = op + length; cpy = op + length;
if ((cpy > oend - COPYLENGTH) || if ((cpy > oend - COPYLENGTH) ||
(ip + length > iend - COPYLENGTH)) { (ip + length > iend - COPYLENGTH)) {