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authorPavel Březina <pbrezina@redhat.com>2013-08-22 14:38:54 +0200
committerJakub Hrozek <jhrozek@redhat.com>2013-08-28 16:21:22 +0200
commit3575235d62fa242d9a650ee54425f42b19533cb0 (patch)
tree76bae02728b514ea0d6ab921690e7d3a32400da9 /src/responder/nss
parentde307ab8e390deabc5df9884a3f762bfb1581936 (diff)
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sss_packet_grow: correctly pad packet length to 512B
https://fedorahosted.org/sssd/ticket/2059 If len % SSSSRV_PACKET_MEM_SIZE == 0 or some low number, we can end up with totlen < len and return EINVAL. It also does not pad the length, but usually allocates much more memory than is desired. len = 1024 n = 1024 % 512 + 1 = 0 + 1 = 1 totlen = 1 * 512 = 512 => totlen < len len = 511 n = 511 % 512 + 1 = 511 + 1 totlen = 512 * 512 = 262144 totlen is way bigger than it was supposed to be
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