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Wed, 07 Oct 2026 06:26:52 -0700 (PDT) From: Roman Demidov To: stable@vger.kernel.org, Greg Kroah-Hartman Cc: Roman Demidov , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Daniel Vetter , Leo Liu , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org, Yinjie Yao , Sasha Levin Subject: [PATCH 5.15/6.1] drm/amdgpu/jpeg: set no_user_fence for JPEG v2.5 ring Date: Wed, 7 Oct 2026 16:26:46 +0300 Message-ID: <20261007132647.121360-1-roman.demidov.nn@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Yinjie Yao commit 79405e774ede411c6b47ed41c651e40b92de64a2 upstream. JPEG rings do not support 64-bit user fence writes, reject CS submissions with user fences. Fixes: 14f43e8f88c5 ("drm/amdgpu: move JPEG2.5 out from VCN2.5") Reviewed-by: Christian König Reviewed-by: Alex Deucher Signed-off-by: Yinjie Yao Signed-off-by: Alex Deucher (cherry picked from commit 3216a7f4e2642bda5fd14f57586e835ae9202587) Signed-off-by: Sasha Levin Signed-off-by: Roman Demidov --- Backport fix for CVE-2026-63847 drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c index f87d0f6ffc93..a094dd138c0d 100644 --- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c +++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c @@ -641,6 +641,7 @@ static const struct amd_ip_funcs jpeg_v2_6_ip_funcs = { static const struct amdgpu_ring_funcs jpeg_v2_5_dec_ring_vm_funcs = { .type = AMDGPU_RING_TYPE_VCN_JPEG, .align_mask = 0xf, + .no_user_fence = true, .vmhub = AMDGPU_MMHUB_1, .get_rptr = jpeg_v2_5_dec_ring_get_rptr, .get_wptr = jpeg_v2_5_dec_ring_get_wptr, @@ -671,6 +672,7 @@ static const struct amdgpu_ring_funcs jpeg_v2_5_dec_ring_vm_funcs = { static const struct amdgpu_ring_funcs jpeg_v2_6_dec_ring_vm_funcs = { .type = AMDGPU_RING_TYPE_VCN_JPEG, .align_mask = 0xf, + .no_user_fence = true, .vmhub = AMDGPU_MMHUB_0, .get_rptr = jpeg_v2_5_dec_ring_get_rptr, .get_wptr = jpeg_v2_5_dec_ring_get_wptr, -- 2.53.0