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Potential Vulnerability in Cloned Code #96

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Potential Vulnerability in Cloned Code #96

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9 changes: 9 additions & 0 deletions net/bridge/netfilter/ebtables.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2079,13 +2079,22 @@ static int size_entry_mwt(struct ebt_entry *entry, const unsigned char *base,
* offsets are relative to beginning of struct ebt_entry (i.e., 0).
*/
for (i = 0; i < 4 ; ++i) {
for (i = 0; i < 4 ; ++i) {
if (offsets[i] >= *total)
if (offsets[i] >= *total)
return -EINVAL;
return -EINVAL;
if (i == 0)
if (i == 0)
continue;
continue;
if (offsets[i-1] > offsets[i])
if (offsets[i-1] > offsets[i])
return -EINVAL;
return -EINVAL;
}
}


for (i = 0, j = 1 ; j < 4 ; j++, i++) {
struct compat_ebt_entry_mwt *match32;
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