CVE-2025-38356 (GCVE-0-2025-38356)
Vulnerability from cvelistv5
Published
2025-07-25 12:47
Modified
2025-07-28 04:19
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/guc: Explicitly exit CT safe mode on unwind
During driver probe we might be briefly using CT safe mode, which
is based on a delayed work, but usually we are able to stop this
once we have IRQ fully operational. However, if we abort the probe
quite early then during unwind we might try to destroy the workqueue
while there is still a pending delayed work that attempts to restart
itself which triggers a WARN.
This was recently observed during unsuccessful VF initialization:
[ ] xe 0000:00:02.1: probe with driver xe failed with error -62
[ ] ------------[ cut here ]------------
[ ] workqueue: cannot queue safe_mode_worker_func [xe] on wq xe-g2h-wq
[ ] WARNING: CPU: 9 PID: 0 at kernel/workqueue.c:2257 __queue_work+0x287/0x710
[ ] RIP: 0010:__queue_work+0x287/0x710
[ ] Call Trace:
[ ] delayed_work_timer_fn+0x19/0x30
[ ] call_timer_fn+0xa1/0x2a0
Exit the CT safe mode on unwind to avoid that warning.
(cherry picked from commit 2ddbb73ec20b98e70a5200cb85deade22ccea2ec)
References
Impacted products
{
"containers": {
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"product": "Linux",
"programFiles": [
"drivers/gpu/drm/xe/xe_guc_ct.c"
],
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"vendor": "Linux",
"versions": [
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}
]
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"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"version": "6.11"
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"version": "0",
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"lessThanOrEqual": "6.12.*",
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"version": "6.12.37",
"versionType": "semver"
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{
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"version": "6.15.5",
"versionType": "semver"
},
{
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"versionType": "original_commit_for_fix"
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],
"cpeApplicability": [
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"nodes": [
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"descriptions": [
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/guc: Explicitly exit CT safe mode on unwind\n\nDuring driver probe we might be briefly using CT safe mode, which\nis based on a delayed work, but usually we are able to stop this\nonce we have IRQ fully operational. However, if we abort the probe\nquite early then during unwind we might try to destroy the workqueue\nwhile there is still a pending delayed work that attempts to restart\nitself which triggers a WARN.\n\nThis was recently observed during unsuccessful VF initialization:\n\n [ ] xe 0000:00:02.1: probe with driver xe failed with error -62\n [ ] ------------[ cut here ]------------\n [ ] workqueue: cannot queue safe_mode_worker_func [xe] on wq xe-g2h-wq\n [ ] WARNING: CPU: 9 PID: 0 at kernel/workqueue.c:2257 __queue_work+0x287/0x710\n [ ] RIP: 0010:__queue_work+0x287/0x710\n [ ] Call Trace:\n [ ] delayed_work_timer_fn+0x19/0x30\n [ ] call_timer_fn+0xa1/0x2a0\n\nExit the CT safe mode on unwind to avoid that warning.\n\n(cherry picked from commit 2ddbb73ec20b98e70a5200cb85deade22ccea2ec)"
}
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"providerMetadata": {
"dateUpdated": "2025-07-28T04:19:47.076Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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"url": "https://git.kernel.org/stable/c/6d0b588614c43d6334b2d7a70a99f31f7b14ecc0"
},
{
"url": "https://git.kernel.org/stable/c/f161e905b08ae8a513c5a36a10e3163e9920cfe6"
},
{
"url": "https://git.kernel.org/stable/c/ad40098da5c3b43114d860a5b5740e7204158534"
}
],
"title": "drm/xe/guc: Explicitly exit CT safe mode on unwind",
"x_generator": {
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"assignerShortName": "Linux",
"cveId": "CVE-2025-38356",
"datePublished": "2025-07-25T12:47:27.803Z",
"dateReserved": "2025-04-16T04:51:24.007Z",
"dateUpdated": "2025-07-28T04:19:47.076Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
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"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38356\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T13:15:24.353\",\"lastModified\":\"2025-07-25T15:29:19.837\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ndrm/xe/guc: Explicitly exit CT safe mode on unwind\\n\\nDuring driver probe we might be briefly using CT safe mode, which\\nis based on a delayed work, but usually we are able to stop this\\nonce we have IRQ fully operational. However, if we abort the probe\\nquite early then during unwind we might try to destroy the workqueue\\nwhile there is still a pending delayed work that attempts to restart\\nitself which triggers a WARN.\\n\\nThis was recently observed during unsuccessful VF initialization:\\n\\n [ ] xe 0000:00:02.1: probe with driver xe failed with error -62\\n [ ] ------------[ cut here ]------------\\n [ ] workqueue: cannot queue safe_mode_worker_func [xe] on wq xe-g2h-wq\\n [ ] WARNING: CPU: 9 PID: 0 at kernel/workqueue.c:2257 __queue_work+0x287/0x710\\n [ ] RIP: 0010:__queue_work+0x287/0x710\\n [ ] Call Trace:\\n [ ] delayed_work_timer_fn+0x19/0x30\\n [ ] call_timer_fn+0xa1/0x2a0\\n\\nExit the CT safe mode on unwind to avoid that warning.\\n\\n(cherry picked from commit 2ddbb73ec20b98e70a5200cb85deade22ccea2ec)\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/6d0b588614c43d6334b2d7a70a99f31f7b14ecc0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad40098da5c3b43114d860a5b5740e7204158534\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f161e905b08ae8a513c5a36a10e3163e9920cfe6\",\"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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