This is a note to let you know that I've just added the patch titled drm/panfrost: Put mapping instead of shmem obj on panfrost_mmu_map_fault_addr() error to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-panfrost-put-mapping-instead-of-shmem-obj-on-panfrost_mmu_map_fault_addr-error.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From fb6e0637ab7ebd8e61fe24f4d663c4bae99cfa62 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> Date: Thu, 30 Jun 2022 23:06:00 +0300 Subject: drm/panfrost: Put mapping instead of shmem obj on panfrost_mmu_map_fault_addr() error From: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> commit fb6e0637ab7ebd8e61fe24f4d663c4bae99cfa62 upstream. When panfrost_mmu_map_fault_addr() fails, the BO's mapping should be unreferenced and not the shmem object which backs the mapping. Cc: stable@xxxxxxxxxxxxxxx Fixes: bdefca2d8dc0 ("drm/panfrost: Add the panfrost_gem_mapping concept") Reviewed-by: Steven Price <steven.price@xxxxxxx> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx> Signed-off-by: Steven Price <steven.price@xxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20220630200601.1884120-2-dmitry.osipenko@xxxxxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -518,7 +518,7 @@ err_map: err_pages: drm_gem_shmem_put_pages(&bo->base); err_bo: - drm_gem_object_put(&bo->base.base); + panfrost_gem_mapping_put(bomapping); return ret; } Patches currently in stable-queue which might be from dmitry.osipenko@xxxxxxxxxxxxx are queue-5.18/drm-panfrost-fix-shrinker-list-corruption-by-madvise-ioctl.patch queue-5.18/drm-panfrost-put-mapping-instead-of-shmem-obj-on-panfrost_mmu_map_fault_addr-error.patch queue-5.18/arm-9213-1-print-message-about-disabled-spectre-workarounds-only-once.patch