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ipc4: helper: guard TLV loop against NULL from tlv_next() #10780

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Merged
lgirdwood merged 2 commits into from
May 15, 2026
Merged

ipc4: helper: guard TLV loop against NULL from tlv_next() #10780

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ipc4: helper: guard TLV loop against NULL from tlv_next()
abonislawski May 15, 2026
fef310e
tlv: guard tlv_value_get() loop against NULL from tlv_next()
abonislawski May 15, 2026
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2 changes: 1 addition & 1 deletion src/include/sof/tlv.h
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Original file line number Diff line number Diff line change
Expand Up @@ -91,7 +91,7 @@ static inline void tlv_value_get(const void *data,
const struct sof_tlv *tlv = (const struct sof_tlv *)data;
const uint32_t end_addr = (uint32_t)data + size;

while ((uint32_t)tlv < end_addr) {
while (tlv && (uint32_t)tlv < end_addr) {

@lyakh lyakh May 18, 2026

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@abonislawski so if we hit tlv == NULL here the function will return with no error and the caller will assume, that it has succeeded...

if (tlv->type == type) {
*value = (void *)tlv->value;
*length = tlv->length;
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