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lib: Fix error path memleaks in read_ea_list_entry()

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Don't leak the result on error

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Wed Dec 18 09:30:33 UTC 2024 on atb-devel-224
This commit is contained in:
Volker Lendecke 2024-12-12 15:17:05 +01:00
parent dc84e98ed5
commit ff4c70e03a
1 changed files with 9 additions and 6 deletions
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15
source3/lib/util_ea.c
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@ -33,11 +33,11 @@ struct ea_list *read_ea_list_entry(TALLOC_CTX *ctx, const char *pdata, size_t da
size_t converted_size; size_t converted_size;
if (!eal) { if (!eal) {
return NULL; goto fail;
} }
if (data_size < 6) { if (data_size < 6) {
return NULL; goto fail;
} }
eal->ea.flags = CVAL(pdata,0); eal->ea.flags = CVAL(pdata,0);
@ -45,23 +45,23 @@ struct ea_list *read_ea_list_entry(TALLOC_CTX *ctx, const char *pdata, size_t da
val_len = SVAL(pdata,2); val_len = SVAL(pdata,2);
if (4 + namelen + 1 + val_len > data_size) { if (4 + namelen + 1 + val_len > data_size) {
return NULL; goto fail;
} }
/* Ensure the name is null terminated. */ /* Ensure the name is null terminated. */
if (pdata[namelen + 4] != '\0') { if (pdata[namelen + 4] != '\0') {
return NULL; goto fail;
} }
if (!pull_ascii_talloc(ctx, &eal->ea.name, pdata + 4, &converted_size)) { if (!pull_ascii_talloc(ctx, &eal->ea.name, pdata + 4, &converted_size)) {
DBG_ERR("pull_ascii_talloc failed: %s\n", strerror(errno)); DBG_ERR("pull_ascii_talloc failed: %s\n", strerror(errno));
} }
if (!eal->ea.name) { if (!eal->ea.name) {
return NULL; goto fail;
} }
eal->ea.value = data_blob_talloc(eal, NULL, (size_t)val_len + 1); eal->ea.value = data_blob_talloc(eal, NULL, (size_t)val_len + 1);
if (!eal->ea.value.data) { if (!eal->ea.value.data) {
return NULL; goto fail;
} }
memcpy(eal->ea.value.data, pdata + 4 + namelen + 1, val_len); memcpy(eal->ea.value.data, pdata + 4 + namelen + 1, val_len);
@ -79,6 +79,9 @@ struct ea_list *read_ea_list_entry(TALLOC_CTX *ctx, const char *pdata, size_t da
dump_data(10, eal->ea.value.data, eal->ea.value.length); dump_data(10, eal->ea.value.data, eal->ea.value.length);
return eal; return eal;
fail:
TALLOC_FREE(eal);
return NULL;
} }
/**************************************************************************** /****************************************************************************