{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cfecfc98a78d97a49807531b5b224459bda877de"
            },
            {
              "fixed": "25a6688f27ff54f97adf7cce1d7e18c38bf51eb4"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50332.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo/aperture: Call sysfb_disable() before removing PCI devices\n\nCall sysfb_disable() from aperture_remove_conflicting_pci_devices()\nbefore removing PCI devices. Without, simpledrm can still bind to\nsimple-framebuffer devices after the hardware driver has taken over\nthe hardware. Both drivers interfere with each other and results are\nundefined.\n\nReported modesetting errors [1] are shown below.\n\n---- snap ----\nrcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 13-.... } 7 jiffies s: 165 root: 0x2000/.\nrcu: blocking rcu_node structures (internal RCU debug):\nTask dump for CPU 13:\ntask:X               state:R  running task     stack:    0 pid: 4242 ppid:  4228 flags:0x00000008\nCall Trace:\n \u003cTASK\u003e\n ? commit_tail+0xd7/0x130\n ? drm_atomic_helper_commit+0x126/0x150\n ? drm_atomic_commit+0xa4/0xe0\n ? drm_plane_get_damage_clips.cold+0x1c/0x1c\n ? drm_atomic_helper_dirtyfb+0x19e/0x280\n ? drm_mode_dirtyfb_ioctl+0x10f/0x1e0\n ? drm_mode_getfb2_ioctl+0x2d0/0x2d0\n ? drm_ioctl_kernel+0xc4/0x150\n ? drm_ioctl+0x246/0x3f0\n ? drm_mode_getfb2_ioctl+0x2d0/0x2d0\n ? __x64_sys_ioctl+0x91/0xd0\n ? do_syscall_64+0x60/0xd0\n ? entry_SYSCALL_64_after_hwframe+0x4b/0xb5\n \u003c/TASK\u003e\n...\nrcu: INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 13-.... } 30 jiffies s: 169 root: 0x2000/.\nrcu: blocking rcu_node structures (internal RCU debug):\nTask dump for CPU 13:\ntask:X               state:R  running task     stack:    0 pid: 4242 ppid:  4228 flags:0x0000400e\nCall Trace:\n \u003cTASK\u003e\n ? memcpy_toio+0x76/0xc0\n ? memcpy_toio+0x1b/0xc0\n ? drm_fb_memcpy_toio+0x76/0xb0\n ? drm_fb_blit_toio+0x75/0x2b0\n ? simpledrm_simple_display_pipe_update+0x132/0x150\n ? drm_atomic_helper_commit_planes+0xb6/0x230\n ? drm_atomic_helper_commit_tail+0x44/0x80\n ? commit_tail+0xd7/0x130\n ? drm_atomic_helper_commit+0x126/0x150\n ? drm_atomic_commit+0xa4/0xe0\n ? drm_plane_get_damage_clips.cold+0x1c/0x1c\n ? drm_atomic_helper_dirtyfb+0x19e/0x280\n ? drm_mode_dirtyfb_ioctl+0x10f/0x1e0\n ? drm_mode_getfb2_ioctl+0x2d0/0x2d0\n ? drm_ioctl_kernel+0xc4/0x150\n ? drm_ioctl+0x246/0x3f0\n ? drm_mode_getfb2_ioctl+0x2d0/0x2d0\n ? __x64_sys_ioctl+0x91/0xd0\n ? do_syscall_64+0x60/0xd0\n ? entry_SYSCALL_64_after_hwframe+0x4b/0xb5\n \u003c/TASK\u003e\n\nThe problem was added by commit 5e0137612430 (\"video/aperture: Disable\nand unregister sysfb devices via aperture helpers\") to v6.0.3 and does\nnot exist in the mainline branch.\n\nThe mainline commit 5e0137612430 (\"video/aperture: Disable and\nunregister sysfb devices via aperture helpers\") has been backported\nfrom v6.0-rc1 to stable v6.0.3 from a larger patch series [2] that\nreworks fbdev framebuffer ownership. The backport misses a change to\naperture_remove_conflicting_pci_devices(). Mainline itself is fine,\nbecause the function does not exist there as a result of the patch\nseries.\n\nInstead of backporting the whole series, fix the additional function.",
  "id": "CVE-2022-50332",
  "modified": "2026-04-01T23:09:11.722068101Z",
  "published": "2025-09-15T14:49:42.733Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/25a6688f27ff54f97adf7cce1d7e18c38bf51eb4"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50332.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50332"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.3",
  "summary": "video/aperture: Call sysfb_disable() before removing PCI devices"
}