[PATCH 6.6 181/393] ASoC: Intel: avs: Fix theoretical infinite loop

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6.6-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>

[ Upstream commit cf4d74256fe103ece7b2647550e6c063048e5682 ]

While 'stack_dump_size' is a u32 bitfield of 16 bits, u32 has a bigger
upper bound than the type u16 of loop counter 'offset' what in theory
may lead to infinite loop condition.

Found out by Coverity static analyzer.

Fixes: c8c960c10971 ("ASoC: Intel: avs: APL-based platforms support")
Signed-off-by: Cezary Rojewski <cezary.rojewski@xxxxxxxxx>
Link: https://patch.msgid.link/20250109122216.3667847-4-cezary.rojewski@xxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 sound/soc/intel/avs/apl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/intel/avs/apl.c b/sound/soc/intel/avs/apl.c
index 24c06568b3e82..25c389632db4f 100644
--- a/sound/soc/intel/avs/apl.c
+++ b/sound/soc/intel/avs/apl.c
@@ -107,7 +107,7 @@ static int avs_apl_coredump(struct avs_dev *adev, union avs_notify_msg *msg)
 	struct avs_apl_log_buffer_layout layout;
 	void __iomem *addr, *buf;
 	size_t dump_size;
-	u16 offset = 0;
+	u32 offset = 0;
 	u8 *dump, *pos;
 
 	dump_size = AVS_FW_REGS_SIZE + msg->ext.coredump.stack_dump_size;
-- 
2.39.5







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