From 806d97978a481f4cee3a43bb4cd7edbd26a344fa Mon Sep 17 00:00:00 2001 From: Jacek Lawrynowicz Date: Fri, 14 Mar 2025 12:03:09 +0900 Subject: [PATCH] accel/ivpu: Fix general protection fault in ivpu_bo_list() BugLink: https://bugs.launchpad.net/bugs/2102266 commit 4b2efb9db0c22a130bbd1275e489b42c02d08050 upstream. Check if ctx is not NULL before accessing its fields. Fixes: 37dee2a2f433 ("accel/ivpu: Improve buffer object debug logs") Cc: stable@vger.kernel.org # v6.8 Reviewed-by: Karol Wachowski Reviewed-by: Jeffrey Hugo Signed-off-by: Jacek Lawrynowicz Link: https://patchwork.freedesktop.org/patch/msgid/20241210130939.1575610-2-jacek.lawrynowicz@linux.intel.com Signed-off-by: Greg Kroah-Hartman CVE-2024-54455 Signed-off-by: Koichiro Den Signed-off-by: Mehmet Basaran --- drivers/accel/ivpu/ivpu_gem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/accel/ivpu/ivpu_gem.c b/drivers/accel/ivpu/ivpu_gem.c index e9ddbe9f50eb..0b17bf7055e4 100644 --- a/drivers/accel/ivpu/ivpu_gem.c +++ b/drivers/accel/ivpu/ivpu_gem.c @@ -402,7 +402,7 @@ static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p) mutex_lock(&bo->lock); drm_printf(p, "%-9p %-3u 0x%-12llx %-10lu 0x%-8x %-4u", - bo, bo->ctx->id, bo->vpu_addr, bo->base.base.size, + bo, bo->ctx ? bo->ctx->id : 0, bo->vpu_addr, bo->base.base.size, bo->flags, kref_read(&bo->base.base.refcount)); if (bo->base.pages)