CVE-2023-52632

In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix lock dependency warning with srcu
====================================================== WARNING: possible
circular locking dependency detected 6.5.0-kfd-yangp #2289 Not tainted
------------------------------------------------------ kworker/0:2/996 is
trying to acquire lock: (srcu){.+.+}-{0:0}, at:
__synchronize_srcu+0x5/0x1a0 but task is already holding lock:
((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}, at:
process_one_work+0x211/0x560 which lock already depends on the new lock.
the existing dependency chain (in reverse order) is: -> #3
((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}:
__flush_work+0x88/0x4f0 svm_range_list_lock_and_flush_work+0x3d/0x110
[amdgpu] svm_range_set_attr+0xd6/0x14c0 [amdgpu] kfd_ioctl+0x1d1/0x630
[amdgpu] __x64_sys_ioctl+0x88/0xc0 -> #2 (&info->lock#2){+.+.}-{3:3}:
__mutex_lock+0x99/0xc70 amdgpu_amdkfd_gpuvm_restore_process_bos+0x54/0x740
[amdgpu] restore_process_helper+0x22/0x80 [amdgpu]
restore_process_worker+0x2d/0xa0 [amdgpu] process_one_work+0x29b/0x560
worker_thread+0x3d/0x3d0 -> #1
((work_completion)(&(&process->restore_work)->work)){+.+.}-{0:0}:
__flush_work+0x88/0x4f0 __cancel_work_timer+0x12c/0x1c0
kfd_process_notifier_release_internal+0x37/0x1f0 [amdgpu]
__mmu_notifier_release+0xad/0x240 exit_mmap+0x6a/0x3a0 mmput+0x6a/0x120
do_exit+0x322/0xb90 do_group_exit+0x37/0xa0 __x64_sys_exit_group+0x18/0x20
do_syscall_64+0x38/0x80 -> #0 (srcu){.+.+}-{0:0}:
__lock_acquire+0x1521/0x2510 lock_sync+0x5f/0x90
__synchronize_srcu+0x4f/0x1a0 __mmu_notifier_release+0x128/0x240
exit_mmap+0x6a/0x3a0 mmput+0x6a/0x120
svm_range_deferred_list_work+0x19f/0x350 [amdgpu]
process_one_work+0x29b/0x560 worker_thread+0x3d/0x3d0 other info that might
help us debug this: Chain exists of: srcu –> &info->lock#2 –>
(work_completion)(&svms->deferred_list_work) Possible unsafe locking
scenario: CPU0 CPU1 ---- ----
lock((work_completion)(&svms->deferred_list_work)); lock(&info->lock#2);
lock((work_completion)(&svms->deferred_list_work)); sync(srcu);

Notes