{"id":"CVE-2025-38624","summary":"PCI: pnv_php: Clean up allocated IRQs on unplug","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: pnv_php: Clean up allocated IRQs on unplug\n\nWhen the root of a nested PCIe bridge configuration is unplugged, the\npnv_php driver leaked the allocated IRQ resources for the child bridges'\nhotplug event notifications, resulting in a panic.\n\nFix this by walking all child buses and deallocating all its IRQ resources\nbefore calling pci_hp_remove_devices().\n\nAlso modify the lifetime of the workqueue at struct pnv_php_slot::wq so\nthat it is only destroyed in pnv_php_free_slot(), instead of\npnv_php_disable_irq(). This is required since pnv_php_disable_irq() will\nnow be called by workers triggered by hot unplug interrupts, so the\nworkqueue needs to stay allocated.\n\nThe abridged kernel panic that occurs without this patch is as follows:\n\n  WARNING: CPU: 0 PID: 687 at kernel/irq/msi.c:292 msi_device_data_release+0x6c/0x9c\n  CPU: 0 UID: 0 PID: 687 Comm: bash Not tainted 6.14.0-rc5+ #2\n  Call Trace:\n   msi_device_data_release+0x34/0x9c (unreliable)\n   release_nodes+0x64/0x13c\n   devres_release_all+0xc0/0x140\n   device_del+0x2d4/0x46c\n   pci_destroy_dev+0x5c/0x194\n   pci_hp_remove_devices+0x90/0x128\n   pci_hp_remove_devices+0x44/0x128\n   pnv_php_disable_slot+0x54/0xd4\n   power_write_file+0xf8/0x18c\n   pci_slot_attr_store+0x40/0x5c\n   sysfs_kf_write+0x64/0x78\n   kernfs_fop_write_iter+0x1b0/0x290\n   vfs_write+0x3bc/0x50c\n   ksys_write+0x84/0x140\n   system_call_exception+0x124/0x230\n   system_call_vectored_common+0x15c/0x2ec\n\n[bhelgaas: tidy comments]","modified":"2026-04-16T04:32:44.160769850Z","published":"2025-08-22T16:00:32.924Z","related":["SUSE-SU-2025:03272-1","SUSE-SU-2025:03290-1","SUSE-SU-2025:03301-1","SUSE-SU-2025:03382-1","SUSE-SU-2025:03602-1","SUSE-SU-2025:03614-1","SUSE-SU-2025:03633-1","SUSE-SU-2025:03634-1","SUSE-SU-2025:20653-1","SUSE-SU-2025:20669-1","SUSE-SU-2025:20739-1","SUSE-SU-2025:20756-1","SUSE-SU-2025:21074-1","SUSE-SU-2025:21139-1","SUSE-SU-2025:21179-1","openSUSE-SU-2025:20081-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38624.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1773c19fa55e944cdd2634e2d9e552f87f2d38d5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/28aa3cfce12487614219e7667ec84424e1f43227"},{"type":"WEB","url":"https://git.kernel.org/stable/c/32173edf3fe2d447e14e5e3b299387c6f9602a88"},{"type":"WEB","url":"https://git.kernel.org/stable/c/398170b7fd0e0db2f8096df5206c75e5ff41415a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4668619092554e1b95c9a5ac2941ca47ba6d548a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8c1ad4af160691e157d688ad9619ced2df556aac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/912e200240b6f9758f0b126e64a61c9227f4ad37"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbd302c4b79df10197ffa7270ca3aa572eeca33c"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38624.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38624"},{"type":"PACKAGE","url":"https://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/cve-osv-conversion/osv-output/CVE-2025-38624.json"}}],"schema_version":"1.7.5"}