From 1a0e57eb96c3fca338665ffd7d9b59f351e5fea7 Mon Sep 17 00:00:00 2001 From: Lijo Lazar Date: Tue, 5 Aug 2025 17:40:09 +0530 Subject: [PATCH 4671/5403] drm/amdgpu/vcn: Fix double-free of vcn dump buffer The buffer is already freed as part of amdgpu_vcn_reg_dump_fini(). The issue is introduced by below patch series. Fixes: de55cbff5ce9 ("drm/amdgpu/vcn: Add regdump helper functions") Signed-off-by: Lijo Lazar Reviewed-by: Sathishkumar S Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 1 + drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c | 1 - drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 2 -- drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 2 -- 4 files changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index b497a6714138..050a5411aae5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -1549,6 +1549,7 @@ int amdgpu_vcn_reg_dump_init(struct amdgpu_device *adev, static void amdgpu_vcn_reg_dump_fini(struct amdgpu_device *adev) { kfree(adev->vcn.ip_dump); + adev->vcn.ip_dump = NULL; adev->vcn.reg_list = NULL; adev->vcn.reg_count = 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c index ff2a85619f23..95173156f956 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v3_0.c @@ -354,7 +354,6 @@ static int vcn_v3_0_sw_fini(struct amdgpu_ip_block *ip_block) return r; } - kfree(adev->vcn.ip_dump); return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c index c6450ed65c12..019bd362edb2 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c @@ -280,8 +280,6 @@ static int vcn_v4_0_3_sw_fini(struct amdgpu_ip_block *ip_block) return r; } - kfree(adev->vcn.ip_dump); - return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c index f785467370d9..75c884a8f556 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c @@ -275,8 +275,6 @@ static int vcn_v4_0_5_sw_fini(struct amdgpu_ip_block *ip_block) return r; } - kfree(adev->vcn.ip_dump); - return 0; } -- 2.54.0