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authorNicholas Marriott <nicholas.marriott@gmail.com>2024-03-21 11:37:09 +0000
committerNicholas Marriott <nicholas.marriott@gmail.com>2024-03-21 11:37:09 +0000
commitaa17f0e0c1c8b3f1d6fc8617613c74f07de66fae (patch)
treeb90b9f0c25c04409339167b9d861eef3c10161f3 /image-sixel.c
parentbf5d3f2e26bb9add9e31d72932aea5580be8b653 (diff)
Fix crash if SIXEL colour register is invalid and remove SIXEL images before
reflow to avoid a different crash, from Anindya Mukherjee.
Diffstat (limited to 'image-sixel.c')
-rw-r--r--image-sixel.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/image-sixel.c b/image-sixel.c
index 3396a22a..e23d17f9 100644
--- a/image-sixel.c
+++ b/image-sixel.c
@@ -489,6 +489,9 @@ sixel_print(struct sixel_image *si, struct sixel_image *map, size_t *size)
colours = si->colours;
ncolours = si->ncolours;
}
+
+ if (ncolours == 0)
+ return (NULL);
contains = xcalloc(1, ncolours);
len = 8192;