Messages in this thread | | | Date | Tue, 29 May 2007 01:00:08 +0400 | From | Edward Shishkin <> | Subject | Re: [PATCH -mm] reiser4: remove lzo compression security hole |
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Richard Purdie wrote:
>Switch reiser4 to use lzo1x_decompress_safe instead of lzo1x_decompress >as otherwise it presents a security hole (lzo1x_decompress doesn't >perform bounds checking on the decompressed data). > >Signed-off-by: Richard Purdie <rpurdie@rpsys.net> > >--- > fs/reiser4/plugin/compress/compress.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > >Index: linux-2.6.21/fs/reiser4/plugin/compress/compress.c >=================================================================== >--- linux-2.6.21.orig/fs/reiser4/plugin/compress/compress.c 2007-05-16 20:47:45.000000000 +0100 >+++ linux-2.6.21/fs/reiser4/plugin/compress/compress.c 2007-05-24 23:43:28.000000000 +0100 >@@ -319,7 +319,7 @@ lzo1_decompress(coa_t coa, __u8 * src_fi > assert("edward-851", coa == NULL); > assert("edward-852", src_len != 0); > >- result = lzo1x_decompress(src_first, src_len, dst_first, &dstlen, NULL); >+ result = lzo1x_decompress_safe(src_first, src_len, dst_first, &dstlen, NULL); > if (result != LZO_E_OK) > warning("edward-853", "lzo1x_1_decompress failed\n"); > *dst_len = dstlen; > > >
Signed-off-by: Edward Shishkin <edward@namesys.com> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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