From: Hersen Wu hersenxs.wu@amd.com

mainline inclusion from mainline-v6.11-rc1 commit 5524fa301ba649f8cf00848f91468e0ba7e4f24c category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAU9OL CVE: CVE-2024-46808

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...

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[Why & How] ASSERT if return NULL from kcalloc.

Reviewed-by: Alex Hung alex.hung@amd.com Reviewed-by: Rodrigo Siqueira rodrigo.siqueira@amd.com Acked-by: Tom Chung chiahsuan.chung@amd.com Signed-off-by: Hersen Wu hersenxs.wu@amd.com Tested-by: Daniel Wheeler daniel.wheeler@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Zhang Zekun zhangzekun11@huawei.com --- drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c index fc50931c2aec..9d67b9a9c2d9 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_dpcd.c @@ -165,6 +165,7 @@ static void dpcd_extend_address_range( *out_address = new_addr_range.start; *out_size = ADDRESS_RANGE_SIZE(new_addr_range.start, new_addr_range.end); *out_data = kzalloc(*out_size * sizeof(**out_data), GFP_KERNEL); + ASSERT(*out_data); } }