CVE-2025-38374 (GCVE-0-2025-38374)
Vulnerability from cvelistv5
Published
2025-07-25 12:53
Modified
2025-07-28 04:20
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
optee: ffa: fix sleep in atomic context
The OP-TEE driver registers the function notif_callback() for FF-A
notifications. However, this function is called in an atomic context
leading to errors like this when processing asynchronous notifications:
| BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258
| in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0
| preempt_count: 1, expected: 0
| RCU nest depth: 0, expected: 0
| CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-00019-g657536ebe0aa #13
| Hardware name: linux,dummy-virt (DT)
| Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn
| Call trace:
| show_stack+0x18/0x24 (C)
| dump_stack_lvl+0x78/0x90
| dump_stack+0x18/0x24
| __might_resched+0x114/0x170
| __might_sleep+0x48/0x98
| mutex_lock+0x24/0x80
| optee_get_msg_arg+0x7c/0x21c
| simple_call_with_arg+0x50/0xc0
| optee_do_bottom_half+0x14/0x20
| notif_callback+0x3c/0x48
| handle_notif_callbacks+0x9c/0xe0
| notif_get_and_handle+0x40/0x88
| generic_exec_single+0x80/0xc0
| smp_call_function_single+0xfc/0x1a0
| notif_pcpu_irq_work_fn+0x2c/0x38
| process_one_work+0x14c/0x2b4
| worker_thread+0x2e4/0x3e0
| kthread+0x13c/0x210
| ret_from_fork+0x10/0x20
Fix this by adding work queue to process the notification in a
non-atomic context.
References
Impacted products
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/tee/optee/ffa_abi.c",
"drivers/tee/optee/optee_private.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5f28563f0c6862c99eb115c918421d9b73f137ad",
"status": "affected",
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"versionType": "git"
},
{
"lessThan": "f27cf15783bd60063c6c97434cbd67ebd91d8db5",
"status": "affected",
"version": "d0476a59de064205f4aaa8f7c6d6f32bc28a44d4",
"versionType": "git"
},
{
"lessThan": "312d02adb959ea199372f375ada06e0186f651e4",
"status": "affected",
"version": "d0476a59de064205f4aaa8f7c6d6f32bc28a44d4",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/tee/optee/ffa_abi.c",
"drivers/tee/optee/optee_private.h"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "6.8"
},
{
"lessThan": "6.8",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.37",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"version": "6.15.6",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.16",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.37",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.15.6",
"versionStartIncluding": "6.8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.16",
"versionStartIncluding": "6.8",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\noptee: ffa: fix sleep in atomic context\n\nThe OP-TEE driver registers the function notif_callback() for FF-A\nnotifications. However, this function is called in an atomic context\nleading to errors like this when processing asynchronous notifications:\n\n | BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258\n | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0\n | preempt_count: 1, expected: 0\n | RCU nest depth: 0, expected: 0\n | CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-00019-g657536ebe0aa #13\n | Hardware name: linux,dummy-virt (DT)\n | Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn\n | Call trace:\n | show_stack+0x18/0x24 (C)\n | dump_stack_lvl+0x78/0x90\n | dump_stack+0x18/0x24\n | __might_resched+0x114/0x170\n | __might_sleep+0x48/0x98\n | mutex_lock+0x24/0x80\n | optee_get_msg_arg+0x7c/0x21c\n | simple_call_with_arg+0x50/0xc0\n | optee_do_bottom_half+0x14/0x20\n | notif_callback+0x3c/0x48\n | handle_notif_callbacks+0x9c/0xe0\n | notif_get_and_handle+0x40/0x88\n | generic_exec_single+0x80/0xc0\n | smp_call_function_single+0xfc/0x1a0\n | notif_pcpu_irq_work_fn+0x2c/0x38\n | process_one_work+0x14c/0x2b4\n | worker_thread+0x2e4/0x3e0\n | kthread+0x13c/0x210\n | ret_from_fork+0x10/0x20\n\nFix this by adding work queue to process the notification in a\nnon-atomic context."
}
],
"providerMetadata": {
"dateUpdated": "2025-07-28T04:20:19.910Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/5f28563f0c6862c99eb115c918421d9b73f137ad"
},
{
"url": "https://git.kernel.org/stable/c/f27cf15783bd60063c6c97434cbd67ebd91d8db5"
},
{
"url": "https://git.kernel.org/stable/c/312d02adb959ea199372f375ada06e0186f651e4"
}
],
"title": "optee: ffa: fix sleep in atomic context",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2025-38374",
"datePublished": "2025-07-25T12:53:16.785Z",
"dateReserved": "2025-04-16T04:51:24.009Z",
"dateUpdated": "2025-07-28T04:20:19.910Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-38374\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T13:15:26.400\",\"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\\noptee: ffa: fix sleep in atomic context\\n\\nThe OP-TEE driver registers the function notif_callback() for FF-A\\nnotifications. However, this function is called in an atomic context\\nleading to errors like this when processing asynchronous notifications:\\n\\n | BUG: sleeping function called from invalid context at kernel/locking/mutex.c:258\\n | in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 9, name: kworker/0:0\\n | preempt_count: 1, expected: 0\\n | RCU nest depth: 0, expected: 0\\n | CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.14.0-00019-g657536ebe0aa #13\\n | Hardware name: linux,dummy-virt (DT)\\n | Workqueue: ffa_pcpu_irq_notification notif_pcpu_irq_work_fn\\n | Call trace:\\n | show_stack+0x18/0x24 (C)\\n | dump_stack_lvl+0x78/0x90\\n | dump_stack+0x18/0x24\\n | __might_resched+0x114/0x170\\n | __might_sleep+0x48/0x98\\n | mutex_lock+0x24/0x80\\n | optee_get_msg_arg+0x7c/0x21c\\n | simple_call_with_arg+0x50/0xc0\\n | optee_do_bottom_half+0x14/0x20\\n | notif_callback+0x3c/0x48\\n | handle_notif_callbacks+0x9c/0xe0\\n | notif_get_and_handle+0x40/0x88\\n | generic_exec_single+0x80/0xc0\\n | smp_call_function_single+0xfc/0x1a0\\n | notif_pcpu_irq_work_fn+0x2c/0x38\\n | process_one_work+0x14c/0x2b4\\n | worker_thread+0x2e4/0x3e0\\n | kthread+0x13c/0x210\\n | ret_from_fork+0x10/0x20\\n\\nFix this by adding work queue to process the notification in a\\nnon-atomic context.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/312d02adb959ea199372f375ada06e0186f651e4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/5f28563f0c6862c99eb115c918421d9b73f137ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f27cf15783bd60063c6c97434cbd67ebd91d8db5\",\"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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