5.15-stable review patch. If anyone has any objections, please let me know.
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From: Emmanuel Grumbach emmanuel.grumbach@intel.com
commit cf4a0d840ecc72fcf16198d5e9c505ab7d5a5e4d upstream.
iwl_fw_ini_trigger_tlv::data is a pointer to a __le32, which means that if we copy to iwl_fw_ini_trigger_tlv::data + offset while offset is in bytes, we'll write past the buffer.
Cc: stable@vger.kernel.org Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218233 Fixes: cf29c5b66b9f ("iwlwifi: dbg_ini: implement time point handling") Signed-off-by: Emmanuel Grumbach emmanuel.grumbach@intel.com Signed-off-by: Miri Korenblit miriam.rachel.korenblit@intel.com Link: https://msgid.link/20240111150610.2d2b8b870194.I14ed76505a5cf87304e0c9cc05cc... Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-dbg-tlv.c @@ -836,7 +836,7 @@ static int iwl_dbg_tlv_override_trig_nod node_trig = (void *)node_tlv->data; }
- memcpy(node_trig->data + offset, trig->data, trig_data_len); + memcpy((u8 *)node_trig->data + offset, trig->data, trig_data_len); node_tlv->length = cpu_to_le32(size);
if (policy & IWL_FW_INI_APPLY_POLICY_OVERRIDE_CFG) {