diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2024-05-30 23:33:41 +0300 |
|---|---|---|
| committer | Matthew Brost <matthew.brost@intel.com> | 2024-05-31 20:31:09 +0300 |
| commit | f2bf9e95989c0163650dbeaede658d0fcf929063 (patch) | |
| tree | 75cd068b96e23e97ff9ef31a81cccf35cd4cf319 | |
| parent | c063cce7df3a765539e2a2d75ab943f334446cce (diff) | |
| download | linux-f2bf9e95989c0163650dbeaede658d0fcf929063.tar.xz | |
drm/xe: Fix NULL ptr dereference in devcoredump
Kernel VM do not have an Xe file. Include a check for Xe file in the VM
before trying to get pid from VM's Xe file when taking a devcoredump.
Fixes: b10d0c5e9df7 ("drm/xe: Add process name to devcoredump")
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240530203341.1795181-1-matthew.brost@intel.com
| -rw-r--r-- | drivers/gpu/drm/xe/xe_devcoredump.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_devcoredump.c b/drivers/gpu/drm/xe/xe_devcoredump.c index 1973bfaece40..d7f2d19a77c1 100644 --- a/drivers/gpu/drm/xe/xe_devcoredump.c +++ b/drivers/gpu/drm/xe/xe_devcoredump.c @@ -176,7 +176,7 @@ static void devcoredump_snapshot(struct xe_devcoredump *coredump, ss->snapshot_time = ktime_get_real(); ss->boot_time = ktime_get_boottime(); - if (q->vm) { + if (q->vm && q->vm->xef) { task = get_pid_task(q->vm->xef->drm->pid, PIDTYPE_PID); if (task) process_name = task->comm; |