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[03/13] ASoC: Intel: avs: Fix theoretical infinite loop

Message ID 20250109122216.3667847-4-cezary.rojewski@intel.com (mailing list archive)
State Accepted
Commit cf4d74256fe103ece7b2647550e6c063048e5682
Headers show
Series ASoC: Intel: avs: Fixes and cleanups | expand

Commit Message

Cezary Rojewski Jan. 9, 2025, 12:22 p.m. UTC
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@intel.com>
---
 sound/soc/intel/avs/apl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/sound/soc/intel/avs/apl.c b/sound/soc/intel/avs/apl.c
index 27516ef57185..d443fe8d51ae 100644
--- a/sound/soc/intel/avs/apl.c
+++ b/sound/soc/intel/avs/apl.c
@@ -125,7 +125,7 @@  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;