CVE-2025-38624

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Source
https://cve.org/CVERecord?id=CVE-2025-38624
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38624.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38624
Downstream
Related
Published
2025-08-22T16:00:32Z
Modified
2026-08-12T03:30:26Z
Summary
PCI: pnv_php: Clean up allocated IRQs on unplug
Details

In the Linux kernel, the following vulnerability has been resolved:

PCI: pnv_php: Clean up allocated IRQs on unplug

When the root of a nested PCIe bridge configuration is unplugged, the pnv_php driver leaked the allocated IRQ resources for the child bridges' hotplug event notifications, resulting in a panic.

Fix this by walking all child buses and deallocating all its IRQ resources before calling pci_hp_remove_devices().

Also modify the lifetime of the workqueue at struct pnv_php_slot::wq so that it is only destroyed in pnv_php_free_slot(), instead of pnv_php_disable_irq(). This is required since pnv_php_disable_irq() will now be called by workers triggered by hot unplug interrupts, so the workqueue needs to stay allocated.

The abridged kernel panic that occurs without this patch is as follows:

WARNING: CPU: 0 PID: 687 at kernel/irq/msi.c:292 msi_device_data_release+0x6c/0x9c CPU: 0 UID: 0 PID: 687 Comm: bash Not tainted 6.14.0-rc5+ #2 Call Trace: msi_device_data_release+0x34/0x9c (unreliable) release_nodes+0x64/0x13c devres_release_all+0xc0/0x140 device_del+0x2d4/0x46c pci_destroy_dev+0x5c/0x194 pci_hp_remove_devices+0x90/0x128 pci_hp_remove_devices+0x44/0x128 pnv_php_disable_slot+0x54/0xd4 power_write_file+0xf8/0x18c pci_slot_attr_store+0x40/0x5c sysfs_kf_write+0x64/0x78 kernfs_fop_write_iter+0x1b0/0x290 vfs_write+0x3bc/0x50c ksys_write+0x84/0x140 system_call_exception+0x124/0x230 system_call_vectored_common+0x15c/0x2ec

[bhelgaas: tidy comments]

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38624.json"
}
References

Affected packages

Git / 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
360aebd85a4c946764f6301d68de2a817fad5159
Fixed
8c1ad4af160691e157d688ad9619ced2df556aac
Fixed
912e200240b6f9758f0b126e64a61c9227f4ad37
Fixed
398170b7fd0e0db2f8096df5206c75e5ff41415a
Fixed
32173edf3fe2d447e14e5e3b299387c6f9602a88
Fixed
28aa3cfce12487614219e7667ec84424e1f43227
Fixed
1773c19fa55e944cdd2634e2d9e552f87f2d38d5
Fixed
bbd302c4b79df10197ffa7270ca3aa572eeca33c
Fixed
4668619092554e1b95c9a5ac2941ca47ba6d548a

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38624.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.9.0
Fixed
5.10.241
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.190
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.148
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.102
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.42
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.15.10
Type
ECOSYSTEM
Events
Introduced
6.16.0
Fixed
6.16.1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38624.json"