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Avoid segfaults due to freed face cache

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* src/xfaces.c (face_at_buffer_position): Make sure DEFAULT_FACE
is usable.  (Bug#51864)
This commit is contained in:
Eli Zaretskii 2021-11-15 15:35:31 +02:00
parent 199e2468d3
commit 5044151486
1 changed files with 4 additions and 1 deletions
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5
src/xfaces.c
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@ -6423,7 +6423,10 @@ face_at_buffer_position (struct window *w, ptrdiff_t pos,
else
face_id = lookup_basic_face (w, f, DEFAULT_FACE_ID);
default_face = FACE_FROM_ID (f, face_id);
default_face = FACE_FROM_ID_OR_NULL (f, face_id);
if (!default_face)
default_face = FACE_FROM_ID (f,
lookup_basic_face (w, f, DEFAULT_FACE_ID));
}
/* Optimize common cases where we can use the default face. */