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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>
(cherry picked from commit 809402414e)

Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/2151>
This commit is contained in:
Mikhail Dmitrichenko 2026-02-05 16:07:43 +03:00 • committed by Marge Bot
parent ba6c070002
commit 70f5424e54
1 changed files with 3 additions and 0 deletions
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3
render/picture.c
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@ -913,6 +913,7 @@ CreateLinearGradientPicture(Picture pid, xPointFixed * p1, xPointFixed * p2,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}
@ -958,6 +959,7 @@ CreateRadialGradientPicture(Picture pid, xPointFixed * inner,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}
@ -996,6 +998,7 @@ CreateConicalGradientPicture(Picture pid, xPointFixed * center, xFixed angle,
initGradient(pPicture->pSourcePict, nStops, stops, colors, error);
if (*error) {
free(pPicture->pSourcePict);
free(pPicture);
return 0;
}