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| author | Phil Sutter <phil@nwl.cc> | 2024-03-07 14:49:08 +0100 |
|---|---|---|
| committer | Phil Sutter <phil@nwl.cc> | 2024-04-11 01:27:07 +0200 |
| commit | be0bae0ad31b0adb506f96de083f52a2bd0d4fbf (patch) | |
| tree | 378a1a3ffc541149493c184f0e3c21dfb675cebf /src/expr/inner.c | |
| parent | c48ac8cba8716a8bc4ff713ee965eee2643cfc31 (diff) | |
expr: Respect data_len when setting attributes
With attr_policy in place, data_len has an upper boundary but it may be
lower than the attribute's storage area in which case memcpy() would
read garbage.
Signed-off-by: Phil Sutter <phil@nwl.cc>
Diffstat (limited to 'src/expr/inner.c')
| -rw-r--r-- | src/expr/inner.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/expr/inner.c b/src/expr/inner.c index 45ef4fb..4f66e94 100644 --- a/src/expr/inner.c +++ b/src/expr/inner.c @@ -45,13 +45,13 @@ nftnl_expr_inner_set(struct nftnl_expr *e, uint16_t type, switch(type) { case NFTNL_EXPR_INNER_TYPE: - memcpy(&inner->type, data, sizeof(inner->type)); + memcpy(&inner->type, data, data_len); break; case NFTNL_EXPR_INNER_FLAGS: - memcpy(&inner->flags, data, sizeof(inner->flags)); + memcpy(&inner->flags, data, data_len); break; case NFTNL_EXPR_INNER_HDRSIZE: - memcpy(&inner->hdrsize, data, sizeof(inner->hdrsize)); + memcpy(&inner->hdrsize, data, data_len); break; case NFTNL_EXPR_INNER_EXPR: if (inner->expr) |