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new 444f2cf047 avfilter/boxblur: Fix off by one errors
444f2cf047 is described below
commit 444f2cf047b92fac8d470f969dbd04bf1107757c
Author: David Korczynski <[email protected]>
AuthorDate: Sat May 16 16:52:36 2026 +0200
Commit: michaelni <[email protected]>
CommitDate: Sat May 16 17:22:45 2026 +0000
avfilter/boxblur: Fix off by one errors
Fixes: ada-2-poc.mkv
Found-by: Claude and Ada Logics. This issue was found by Anthropic from
using agents to study security of open source projects, and I am from Ada
Logics helping validate the found issues and report to maintainers.
Signed-off-by: Michael Niedermayer <[email protected]>
---
libavfilter/boxblur.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/libavfilter/boxblur.c b/libavfilter/boxblur.c
index 43c724daea..51029b93b4 100644
--- a/libavfilter/boxblur.c
+++ b/libavfilter/boxblur.c
@@ -114,9 +114,9 @@ int ff_boxblur_eval_filter_params(AVFilterLink *inlink,
#define CHECK_RADIUS_VAL(w_, h_, comp) \
if (comp->radius < 0 || \
- 2*comp->radius > FFMIN(w_, h_)) { \
+ 2*comp->radius >= FFMIN(w_, h_)) { \
av_log(ctx, AV_LOG_ERROR, \
- "Invalid " #comp " radius value %d, must be >= 0 and <= %d\n", \
+ "Invalid " #comp " radius value %d, must be >= 0 and < %d\n", \
comp->radius, FFMIN(w_, h_)/2); \
return AVERROR(EINVAL); \
}
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