{"id":"CVE-2023-53678","summary":"drm/i915: Fix system suspend without fbdev being initialized","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/i915: Fix system suspend without fbdev being initialized\n\nIf fbdev is not initialized for some reason - in practice on platforms\nwithout display - suspending fbdev should be skipped during system\nsuspend, fix this up. While at it add an assert that suspending fbdev\nonly happens with the display present.\n\nThis fixes the following:\n\n[   91.227923] PM: suspend entry (s2idle)\n[   91.254598] Filesystems sync: 0.025 seconds\n[   91.270518] Freezing user space processes\n[   91.272266] Freezing user space processes completed (elapsed 0.001 seconds)\n[   91.272686] OOM killer disabled.\n[   91.272872] Freezing remaining freezable tasks\n[   91.274295] Freezing remaining freezable tasks completed (elapsed 0.001 seconds)\n[   91.659622] BUG: kernel NULL pointer dereference, address: 00000000000001c8\n[   91.659981] #PF: supervisor write access in kernel mode\n[   91.660252] #PF: error_code(0x0002) - not-present page\n[   91.660511] PGD 0 P4D 0\n[   91.660647] Oops: 0002 [#1] PREEMPT SMP NOPTI\n[   91.660875] CPU: 4 PID: 917 Comm: bash Not tainted 6.2.0-rc7+ #54\n[   91.661185] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS edk2-20221117gitfff6d81270b5-9.fc37 unknown\n[   91.661680] RIP: 0010:mutex_lock+0x19/0x30\n[   91.661914] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 53 48 89 fb e8 62 d3 ff ff 31 c0 65 48 8b 14 25 00 15 03 00 \u003cf0\u003e 48 0f b1 13 75 06 5b c3 cc cc cc cc 48 89 df 5b eb b4 0f 1f 40\n[   91.662840] RSP: 0018:ffffa1e8011ffc08 EFLAGS: 00010246\n[   91.663087] RAX: 0000000000000000 RBX: 00000000000001c8 RCX: 0000000000000000\n[   91.663440] RDX: ffff8be455eb0000 RSI: 0000000000000001 RDI: 00000000000001c8\n[   91.663802] RBP: ffff8be459440000 R08: ffff8be459441f08 R09: ffffffff8e1432c0\n[   91.664167] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001\n[   91.664532] R13: 00000000000001c8 R14: 0000000000000000 R15: ffff8be442f4fb20\n[   91.664905] FS:  00007f28ffc16740(0000) GS:ffff8be4bb900000(0000) knlGS:0000000000000000\n[   91.665334] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[   91.665626] CR2: 00000000000001c8 CR3: 0000000114926006 CR4: 0000000000770ee0\n[   91.665988] PKRU: 55555554\n[   91.666131] Call Trace:\n[   91.666265]  \u003cTASK\u003e\n[   91.666381]  intel_fbdev_set_suspend+0x97/0x1b0 [i915]\n[   91.666738]  i915_drm_suspend+0xb9/0x100 [i915]\n[   91.667029]  pci_pm_suspend+0x78/0x170\n[   91.667234]  ? __pfx_pci_pm_suspend+0x10/0x10\n[   91.667461]  dpm_run_callback+0x47/0x150\n[   91.667673]  __device_suspend+0x10a/0x4e0\n[   91.667880]  dpm_suspend+0x134/0x270\n[   91.668069]  dpm_suspend_start+0x79/0x80\n[   91.668272]  suspend_devices_and_enter+0x11b/0x890\n[   91.668526]  pm_suspend.cold+0x270/0x2fc\n[   91.668737]  state_store+0x46/0x90\n[   91.668916]  kernfs_fop_write_iter+0x11b/0x200\n[   91.669153]  vfs_write+0x1e1/0x3a0\n[   91.669336]  ksys_write+0x53/0xd0\n[   91.669510]  do_syscall_64+0x58/0xc0\n[   91.669699]  ? syscall_exit_to_user_mode_prepare+0x18e/0x1c0\n[   91.669980]  ? syscall_exit_to_user_mode_prepare+0x18e/0x1c0\n[   91.670278]  ? syscall_exit_to_user_mode+0x17/0x40\n[   91.670524]  ? do_syscall_64+0x67/0xc0\n[   91.670717]  ? __irq_exit_rcu+0x3d/0x140\n[   91.670931]  entry_SYSCALL_64_after_hwframe+0x72/0xdc\n[   91.671202] RIP: 0033:0x7f28ffd14284\n\nv2: CC stable. (Jani)\n\nReferences: https://gitlab.freedesktop.org/drm/intel/-/issues/8015\n(cherry picked from commit 9542d708409a41449e99c9a464deb5e062c4bee2)","modified":"2026-04-02T09:02:34.494069Z","published":"2025-10-07T15:21:33.220Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53678.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/27b5871abd5cc068c549fd23062c82e257fc0b9c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8038510b1fe443ffbc0e356db5f47cbb8678a594"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ed572d5a0f1509e691a75a0e3d3588050371f1e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53678.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53678"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f8cc091e05305231c8f747ca253a90ff0cea60b9"},{"fixed":"27b5871abd5cc068c549fd23062c82e257fc0b9c"},{"fixed":"8ed572d5a0f1509e691a75a0e3d3588050371f1e"},{"fixed":"8038510b1fe443ffbc0e356db5f47cbb8678a594"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53678.json"}}],"schema_version":"1.7.5"}