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render: fix multiple mem leaks on err paths

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Free nested allocations when initialization fails.
Several code paths returned early on error without releasing
memory owned by embedded structures, leading to leaks.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Signed-off-by: Mikhail Dmitrichenko <m.dmitrichenko222@gmail.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2125>
This commit is contained in:
Mikhail Dmitrichenko
2026-03-14 18:52:13 +02:00
committed by Enrico Weigelt
parent 0f5c85f51b
commit 4eeb22c8be
1 changed files with 3 additions and 0 deletions
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3
render/picture.c
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@@ -902,6 +902,7 @@ CreateLinearGradientPicture(Picture pid, xPointFixed * p1, xPointFixed * p2,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}
@@ -947,6 +948,7 @@ CreateRadialGradientPicture(Picture pid, xPointFixed * inner,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}
@@ -985,6 +987,7 @@ CreateConicalGradientPicture(Picture pid, xPointFixed * center, xFixed angle,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}