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[PATCH] exynos: Fix out-of-bounds access in exynos4210_gcomp_find
From: |
Feng Jiang |
Subject: |
[PATCH] exynos: Fix out-of-bounds access in exynos4210_gcomp_find |
Date: |
Tue, 4 Apr 2023 15:45:06 +0800 |
When 'res' equals -1, the array 's->g_timer.reg.comp[]' is accessed
out of bounds.
Signed-off-by: Feng Jiang <jiangfeng@kylinos.cn>
---
hw/timer/exynos4210_mct.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)
diff --git a/hw/timer/exynos4210_mct.c b/hw/timer/exynos4210_mct.c
index c17b247da3..446bbd2b96 100644
--- a/hw/timer/exynos4210_mct.c
+++ b/hw/timer/exynos4210_mct.c
@@ -480,11 +480,14 @@ static int32_t exynos4210_gcomp_find(Exynos4210MCTState
*s)
res = min_comp_i;
}
- DPRINTF("found comparator %d: comp 0x%llx distance 0x%llx, gfrc 0x%llx\n",
- res,
- s->g_timer.reg.comp[res],
- distance_min,
- gfrc);
+ if (res >= 0) {
+ DPRINTF("found comparator %d: "
+ "comp 0x%llx distance 0x%llx, gfrc 0x%llx\n",
+ res,
+ s->g_timer.reg.comp[res],
+ distance_min,
+ gfrc);
+ }
return res;
}
--
2.39.2
- [PATCH] exynos: Fix out-of-bounds access in exynos4210_gcomp_find,
Feng Jiang <=