Commits
J. Bruce Fields committed 4aed9c46afb
nfsd4: fix bad bounds checking A number of spots in the xdr decoding follow a pattern like n = be32_to_cpup(p++); READ_BUF(n + 4); where n is a u32. The only bounds checking is done in READ_BUF itself, but since it's checking (n + 4), it won't catch cases where n is very large, (u32)(-4) or higher. I'm not sure exactly what the consequences are, but we've seen crashes soon after. Instead, just break these up into two READ_BUF()s. Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>