drm/rockchip: analogix_dp: fix unchecked bound endpoint name length

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rockchip_dp_drm_encoder_enable() uses sprintf() to format a device tree
path into a 32-byte stack buffer. Device tree paths are not limited to
this size, so a sufficiently long path can overflow the buffer.

Use snprintf() with the destination size to truncate the generated name
and keep the writes within bounds.

Fixes: 729f8eefdc ("drm/rockchip: analogix_dp: Add support for RK3588")
Cc: stable@vger.kernel.org
Signed-off-by: Yudi Yang <2000jedi@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260901195511.2761251-1-2000jedi@gmail.com

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Yudi Yang 2026-09-01 14:55:11 -05:00 • committed by Heiko Stuebner

parent d3609b5408

commit bc69439d98

1 changed files with 4 additions and 3 deletions

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drivers/gpu/drm/rockchip/analogix_dp-rockchip.c

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