{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2023-52632",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2023-52632"
  ],
  "published": "2024-04-02T06:49:49Z",
  "summary": "drm/amdkfd: Fix lock dependency warning with srcu",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix lock dependency warning with srcu\n\n======================================================\nWARNING: possible circular locking dependency detected\n6.5.0-kfd-yangp #2289 Not tainted\n------------------------------------------------------\nkworker/0:2/996 is trying to acquire lock:\n        (srcu){.+.+}-{0:0}, at: __synchronize_srcu+0x5/0x1a0\n\nbut task is already holding lock:\n        ((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}, at:\n\tprocess_one_work+0x211/0x560\n\nwhich lock already depends on the new lock.\n\nthe existing dependency chain (in reverse order) is:\n\n-> #3 ((work_completion)(&svms->deferred_list_work)){+.+.}-{0:0}:\n        __flush_work+0x88/0x4f0\n        svm_range_list_lock_and_flush_work+0x3d/0x110 [amdgpu]\n        svm_range_set_attr+0xd6/0x14c0 [amdgpu]\n        kfd_ioctl+0x1d1/0x630 [amdgpu]\n        __x64_sys_ioctl+0x88/0xc0\n\n-> #2 (&info->lock#2){+.+.}-{3:3}:\n        __mutex_lock+0x99/0xc70\n        amdgpu_amdkfd_gpuvm_restore_process_bos+0x54/0x740 [amdgpu]\n        restore_process_helper+0x22/0x80 [amdgpu]\n        restore_process_worker+0x2d/0xa0 [amdgpu]\n        process_one_work+0x29b/0x560\n        worker_thread+0x3d/0x3d0\n\n-> #1 ((work_completion)(&(&process->restore_work)->work)){+.+.}-{0:0}:\n        __flush_work+0x88/0x4f0\n        __cancel_work_timer+0x12c/0x1c0\n        kfd_process_notifier_release_internal+0x37/0x1f0 [amdgpu]\n        __mmu_notifier_release+0xad/0x240\n        exit_mmap+0x6a/0x3a0\n        mmput+0x6a/0x120\n        do_exit+0x322/0xb90\n        do_group_exit+0x37/0xa0\n        __x64_sys_exit_group+0x18/0x20\n        do_syscall_64+0x38/0x80\n\n-> #0 (srcu){.+.+}-{0:0}:\n        __lock_acquire+0x1521/0x2510\n        lock_sync+0x5f/0x90\n        __synchronize_srcu+0x4f/0x1a0\n        __mmu_notifier_release+0x128/0x240\n        exit_mmap+0x6a/0x3a0\n        mmput+0x6a/0x120\n        svm_range_deferred_list_work+0x19f/0x350 [amdgpu]\n        process_one_work+0x29b/0x560\n        worker_thread+0x3d/0x3d0\n\nother info that might help us debug this:\nChain exists of:\n  srcu --> &info->lock#2 --> (work_completion)(&svms->deferred_list_work)\n\nPossible unsafe locking scenario:\n\n        CPU0                    CPU1\n        ----                    ----\n        lock((work_completion)(&svms->deferred_list_work));\n                        lock(&info->lock#2);\n\t\t\tlock((work_completion)(&svms->deferred_list_work));\n        sync(srcu);",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.77",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-52632"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b602f098f716723fa5c6c96a486e0afba83b7b94"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/752312f6a79440086ac0f9b08d7776870037323c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1556c242e64cdffe58736aa650b0b395854fe4d4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2a9de42e8d3c82c6990d226198602be44f43f340"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}