CVE-2025-39807 (GCVE-0-2025-39807)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2025-09-16 13:00
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/mediatek: Add error handling for old state CRTC in atomic_disable
Introduce error handling to address an issue where, after a hotplug
event, the cursor continues to update. This situation can lead to a
kernel panic due to accessing the NULL `old_state->crtc`.
E,g.
Unable to handle kernel NULL pointer dereference at virtual address
Call trace:
mtk_crtc_plane_disable+0x24/0x140
mtk_plane_atomic_update+0x8c/0xa8
drm_atomic_helper_commit_planes+0x114/0x2c8
drm_atomic_helper_commit_tail_rpm+0x4c/0x158
commit_tail+0xa0/0x168
drm_atomic_helper_commit+0x110/0x120
drm_atomic_commit+0x8c/0xe0
drm_atomic_helper_update_plane+0xd4/0x128
__setplane_atomic+0xcc/0x110
drm_mode_cursor_common+0x250/0x440
drm_mode_cursor_ioctl+0x44/0x70
drm_ioctl+0x264/0x5d8
__arm64_sys_ioctl+0xd8/0x510
invoke_syscall+0x6c/0xe0
do_el0_svc+0x68/0xe8
el0_svc+0x34/0x60
el0t_64_sync_handler+0x1c/0xf8
el0t_64_sync+0x180/0x188
Adding NULL pointer checks to ensure stability by preventing operations
on an invalid CRTC state.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/mediatek/mtk_plane.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "7d5cc22efa44e0fe321ce195c71c3d7da211fbb2",
"status": "affected",
"version": "40b5b4ba8ed87c0bfb6268c10589777652ebde4c",
"versionType": "git"
},
{
"lessThan": "9a94e9d8b50bcfe89693bc899a54d3866d86e973",
"status": "affected",
"version": "d208261e9f7c66960587b10473081dc1cecbe50b",
"versionType": "git"
},
{
"lessThan": "0c6b24d70da21201ed009a2aca740d2dfddc7ab5",
"status": "affected",
"version": "d208261e9f7c66960587b10473081dc1cecbe50b",
"versionType": "git"
},
{
"status": "affected",
"version": "a9c482689051ca96f4a4630fe49fd6919694caaa",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/gpu/drm/mediatek/mtk_plane.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"lessThan": "6.16",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.45",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.16.*",
"status": "unaffected",
"version": "6.16.5",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.17-rc4",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.45",
"versionStartIncluding": "6.12.40",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16.5",
"versionStartIncluding": "6.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.17-rc4",
"versionStartIncluding": "6.16",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.15.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/mediatek: Add error handling for old state CRTC in atomic_disable\n\nIntroduce error handling to address an issue where, after a hotplug\nevent, the cursor continues to update. This situation can lead to a\nkernel panic due to accessing the NULL `old_state-\u003ecrtc`.\n\nE,g.\nUnable to handle kernel NULL pointer dereference at virtual address\nCall trace:\n mtk_crtc_plane_disable+0x24/0x140\n mtk_plane_atomic_update+0x8c/0xa8\n drm_atomic_helper_commit_planes+0x114/0x2c8\n drm_atomic_helper_commit_tail_rpm+0x4c/0x158\n commit_tail+0xa0/0x168\n drm_atomic_helper_commit+0x110/0x120\n drm_atomic_commit+0x8c/0xe0\n drm_atomic_helper_update_plane+0xd4/0x128\n __setplane_atomic+0xcc/0x110\n drm_mode_cursor_common+0x250/0x440\n drm_mode_cursor_ioctl+0x44/0x70\n drm_ioctl+0x264/0x5d8\n __arm64_sys_ioctl+0xd8/0x510\n invoke_syscall+0x6c/0xe0\n do_el0_svc+0x68/0xe8\n el0_svc+0x34/0x60\n el0t_64_sync_handler+0x1c/0xf8\n el0t_64_sync+0x180/0x188\n\nAdding NULL pointer checks to ensure stability by preventing operations\non an invalid CRTC state."
}
],
"providerMetadata": {
"dateUpdated": "2025-09-16T13:00:10.408Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7d5cc22efa44e0fe321ce195c71c3d7da211fbb2"
},
{
"url": "https://git.kernel.org/stable/c/9a94e9d8b50bcfe89693bc899a54d3866d86e973"
},
{
"url": "https://git.kernel.org/stable/c/0c6b24d70da21201ed009a2aca740d2dfddc7ab5"
}
],
"title": "drm/mediatek: Add error handling for old state CRTC in atomic_disable",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-39807",
"datePublished": "2025-09-16T13:00:10.408Z",
"dateReserved": "2025-04-16T07:20:57.137Z",
"dateUpdated": "2025-09-16T13:00:10.408Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-39807\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T13:15:51.783\",\"lastModified\":\"2025-09-18T13:43:45.290\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/mediatek: Add error handling for old state CRTC in atomic_disable\\n\\nIntroduce error handling to address an issue where, after a hotplug\\nevent, the cursor continues to update. This situation can lead to a\\nkernel panic due to accessing the NULL `old_state-\u003ecrtc`.\\n\\nE,g.\\nUnable to handle kernel NULL pointer dereference at virtual address\\nCall trace:\\n mtk_crtc_plane_disable+0x24/0x140\\n mtk_plane_atomic_update+0x8c/0xa8\\n drm_atomic_helper_commit_planes+0x114/0x2c8\\n drm_atomic_helper_commit_tail_rpm+0x4c/0x158\\n commit_tail+0xa0/0x168\\n drm_atomic_helper_commit+0x110/0x120\\n drm_atomic_commit+0x8c/0xe0\\n drm_atomic_helper_update_plane+0xd4/0x128\\n __setplane_atomic+0xcc/0x110\\n drm_mode_cursor_common+0x250/0x440\\n drm_mode_cursor_ioctl+0x44/0x70\\n drm_ioctl+0x264/0x5d8\\n __arm64_sys_ioctl+0xd8/0x510\\n invoke_syscall+0x6c/0xe0\\n do_el0_svc+0x68/0xe8\\n el0_svc+0x34/0x60\\n el0t_64_sync_handler+0x1c/0xf8\\n el0t_64_sync+0x180/0x188\\n\\nAdding NULL pointer checks to ensure stability by preventing operations\\non an invalid CRTC state.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0c6b24d70da21201ed009a2aca740d2dfddc7ab5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7d5cc22efa44e0fe321ce195c71c3d7da211fbb2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9a94e9d8b50bcfe89693bc899a54d3866d86e973\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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