ghsa-gjjg-hhwj-9mvj
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: avoid NPD when ASIC does not support DMUB
ctx->dmub_srv will de NULL if the ASIC does not support DMUB, which is tested in dm_dmub_sw_init.
However, it will be dereferenced in dmub_hw_lock_mgr_cmd if should_use_dmub_lock returns true.
This has been the case since dmub support has been added for PSR1.
Fix this by checking for dmub_srv in should_use_dmub_lock.
[ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058 [ 37.447808] #PF: supervisor read access in kernel mode [ 37.452959] #PF: error_code(0x0000) - not-present page [ 37.458112] PGD 0 P4D 0 [ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88 [ 37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023 [ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 <48> 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5 [ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202 [ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358 [ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000 [ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5 [ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000 [ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000 [ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000 [ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0 [ 37.572697] Call Trace: [ 37.575152] [ 37.577258] ? __die_body+0x66/0xb0 [ 37.580756] ? page_fault_oops+0x3e7/0x4a0 [ 37.584861] ? exc_page_fault+0x3e/0xe0 [ 37.588706] ? exc_page_fault+0x5c/0xe0 [ 37.592550] ? asm_exc_page_fault+0x22/0x30 [ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.601107] dcn10_cursor_lock+0x1e1/0x240 [ 37.605211] program_cursor_attributes+0x81/0x190 [ 37.609923] commit_planes_for_stream+0x998/0x1ef0 [ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0 [ 37.619703] dc_update_planes_and_stream+0x78/0x140 [ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0 [ 37.629832] ? srso_return_thunk+0x5/0x5f [ 37.633847] ? mark_held_locks+0x6d/0xd0 [ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50 [ 37.642135] ? srso_return_thunk+0x5/0x5f [ 37.646148] ? lockdep_hardirqs_on+0x95/0x150 [ 37.650510] ? srso_return_thunk+0x5/0x5f [ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50 [ 37.658883] ? srso_return_thunk+0x5/0x5f [ 37.662897] ? wait_for_common+0x186/0x1c0 [ 37.666998] ? srso_return_thunk+0x5/0x5f [ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170 [ 37.675983] commit_tail+0xf5/0x1c0 [ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0 [ 37.684186] drm_atomic_commit+0xd6/0x100 [ 37.688199] ? __cfidrmprintfn_info+0x10/0x10 [ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130 [ 37.698054] drm_mode_cursor_common+0x501/0x670 [ 37.702600] ? cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.707572] drm_mode_cursor_ioctl+0x48/0x70 [ 37.711851] drm_ioctl_kernel+0xf2/0x150 [ 37.715781] drm_ioctl+0x363/0x590 [ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.724165] amdgpu_drm_ioctl+0x41/0x80 [ 37.728013] __se_sys_ioctl+0x7f/0xd0 [ 37.731685] do_syscall_64+0x87/0x100 [ 37.735355] ? vma_end_read+0x12/0xe0 [ 37.739024] ? srso_return_thunk+0x5/0x5f [ 37.743041] ? find_held_lock+0x47/0xf0 [ 37.746884] ? vma_end_read+0x12/0xe0 [ 37.750552] ? srso_return_thunk+0x5/0 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2025-22093"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T15:16:03Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: avoid NPD when ASIC does not support DMUB\n\nctx-\u003edmub_srv will de NULL if the ASIC does not support DMUB, which is\ntested in dm_dmub_sw_init.\n\nHowever, it will be dereferenced in dmub_hw_lock_mgr_cmd if\nshould_use_dmub_lock returns true.\n\nThis has been the case since dmub support has been added for PSR1.\n\nFix this by checking for dmub_srv in should_use_dmub_lock.\n\n[ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[ 37.447808] #PF: supervisor read access in kernel mode\n[ 37.452959] #PF: error_code(0x0000) - not-present page\n[ 37.458112] PGD 0 P4D 0\n[ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI\n[ 37.465553] CPU: 2 UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23 99720e1cb1e0fc4773b8513150932a07de3c6e88\n[ 37.478324] Hardware name: Google Morphius/Morphius, BIOS Google_Morphius.13434.858.0 10/26/2023\n[ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0\n[ 37.492074] Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08 85 f6 75 05 c6 44 24 0e 01 \u003c48\u003e 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5\n[ 37.510822] RSP: 0018:ffff969442853300 EFLAGS: 00010202\n[ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX: ffff969442853358\n[ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000\n[ 37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5\n[ 37.537453] R10: 0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000\n[ 37.544589] R13: ffff92da01180ae0 R14: ffff92da011802a8 R15: ffff92db03000000\n[ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000) knlGS:0000000000000000\n[ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 37.565562] CR2: 0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0\n[ 37.572697] Call Trace:\n[ 37.575152] \u003cTASK\u003e\n[ 37.577258] ? __die_body+0x66/0xb0\n[ 37.580756] ? page_fault_oops+0x3e7/0x4a0\n[ 37.584861] ? exc_page_fault+0x3e/0xe0\n[ 37.588706] ? exc_page_fault+0x5c/0xe0\n[ 37.592550] ? asm_exc_page_fault+0x22/0x30\n[ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0\n[ 37.601107] dcn10_cursor_lock+0x1e1/0x240\n[ 37.605211] program_cursor_attributes+0x81/0x190\n[ 37.609923] commit_planes_for_stream+0x998/0x1ef0\n[ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0\n[ 37.619703] dc_update_planes_and_stream+0x78/0x140\n[ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0\n[ 37.629832] ? srso_return_thunk+0x5/0x5f\n[ 37.633847] ? mark_held_locks+0x6d/0xd0\n[ 37.637774] ? _raw_spin_unlock_irq+0x24/0x50\n[ 37.642135] ? srso_return_thunk+0x5/0x5f\n[ 37.646148] ? lockdep_hardirqs_on+0x95/0x150\n[ 37.650510] ? srso_return_thunk+0x5/0x5f\n[ 37.654522] ? _raw_spin_unlock_irq+0x2f/0x50\n[ 37.658883] ? srso_return_thunk+0x5/0x5f\n[ 37.662897] ? wait_for_common+0x186/0x1c0\n[ 37.666998] ? srso_return_thunk+0x5/0x5f\n[ 37.671009] ? drm_crtc_next_vblank_start+0xc3/0x170\n[ 37.675983] commit_tail+0xf5/0x1c0\n[ 37.679478] drm_atomic_helper_commit+0x2a2/0x2b0\n[ 37.684186] drm_atomic_commit+0xd6/0x100\n[ 37.688199] ? __cfi___drm_printfn_info+0x10/0x10\n[ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130\n[ 37.698054] drm_mode_cursor_common+0x501/0x670\n[ 37.702600] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[ 37.707572] drm_mode_cursor_ioctl+0x48/0x70\n[ 37.711851] drm_ioctl_kernel+0xf2/0x150\n[ 37.715781] drm_ioctl+0x363/0x590\n[ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10\n[ 37.724165] amdgpu_drm_ioctl+0x41/0x80\n[ 37.728013] __se_sys_ioctl+0x7f/0xd0\n[ 37.731685] do_syscall_64+0x87/0x100\n[ 37.735355] ? vma_end_read+0x12/0xe0\n[ 37.739024] ? srso_return_thunk+0x5/0x5f\n[ 37.743041] ? find_held_lock+0x47/0xf0\n[ 37.746884] ? vma_end_read+0x12/0xe0\n[ 37.750552] ? srso_return_thunk+0x5/0\n---truncated---",
"id": "GHSA-gjjg-hhwj-9mvj",
"modified": "2025-04-16T15:34:44Z",
"published": "2025-04-16T15:34:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22093"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3453bcaf2ca92659346bf8504c2b52b3993fbd79"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/35ad39afd007eddf34b3307bebb715c26891cc96"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/42d9d7bed270247f134190ba0cb05bbd072f58c2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5e4b1e04740cdb28de189285007366d99a92f1ce"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b3a93a2407ad23c8d5bacabaf7cecbb4c6cdd461"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d953e2cd59ab466569c6f9da460e01caf1c83559"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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