{"id":"CVE-2025-38624","state":"PUBLISHED","title":"PCI: pnv_php: Clean up allocated IRQs on unplug","description":"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]","publishedAt":"2025-08-22T16:00:32.924Z","updatedAt":"2026-05-11T21:31:49.470Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"8c1ad4af160691e157d688ad9619ced2df556aac","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"912e200240b6f9758f0b126e64a61c9227f4ad37","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"398170b7fd0e0db2f8096df5206c75e5ff41415a","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"32173edf3fe2d447e14e5e3b299387c6f9602a88","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"28aa3cfce12487614219e7667ec84424e1f43227","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"1773c19fa55e944cdd2634e2d9e552f87f2d38d5","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"bbd302c4b79df10197ffa7270ca3aa572eeca33c","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"4668619092554e1b95c9a5ac2941ca47ba6d548a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/hotplug/pnv_php.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.9","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.148","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.102","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.42","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.10","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/hotplug/pnv_php.c"]}],"references":["https://git.kernel.org/stable/c/8c1ad4af160691e157d688ad9619ced2df556aac","https://git.kernel.org/stable/c/912e200240b6f9758f0b126e64a61c9227f4ad37","https://git.kernel.org/stable/c/398170b7fd0e0db2f8096df5206c75e5ff41415a","https://git.kernel.org/stable/c/32173edf3fe2d447e14e5e3b299387c6f9602a88","https://git.kernel.org/stable/c/28aa3cfce12487614219e7667ec84424e1f43227","https://git.kernel.org/stable/c/1773c19fa55e944cdd2634e2d9e552f87f2d38d5","https://git.kernel.org/stable/c/bbd302c4b79df10197ffa7270ca3aa572eeca33c","https://git.kernel.org/stable/c/4668619092554e1b95c9a5ac2941ca47ba6d548a","https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38624.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38624","state":"PUBLISHED","datePublished":"2025-08-22T16:00:32.924Z","dateUpdated":"2026-05-11T21:31:49.470Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.029Z"},"containers":{"cna":{"title":"PCI: pnv_php: Clean up allocated IRQs on unplug","descriptions":[{"lang":"en","value":"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]"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"8c1ad4af160691e157d688ad9619ced2df556aac","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"912e200240b6f9758f0b126e64a61c9227f4ad37","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"398170b7fd0e0db2f8096df5206c75e5ff41415a","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"32173edf3fe2d447e14e5e3b299387c6f9602a88","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"28aa3cfce12487614219e7667ec84424e1f43227","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"1773c19fa55e944cdd2634e2d9e552f87f2d38d5","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"bbd302c4b79df10197ffa7270ca3aa572eeca33c","versionType":"git"},{"version":"360aebd85a4c946764f6301d68de2a817fad5159","status":"affected","lessThan":"4668619092554e1b95c9a5ac2941ca47ba6d548a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/hotplug/pnv_php.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.9","versionType":"semver"},{"version":"5.10.241","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.190","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.148","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.102","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.42","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.10","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.1","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/hotplug/pnv_php.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/8c1ad4af160691e157d688ad9619ced2df556aac"},{"url":"https://git.kernel.org/stable/c/912e200240b6f9758f0b126e64a61c9227f4ad37"},{"url":"https://git.kernel.org/stable/c/398170b7fd0e0db2f8096df5206c75e5ff41415a"},{"url":"https://git.kernel.org/stable/c/32173edf3fe2d447e14e5e3b299387c6f9602a88"},{"url":"https://git.kernel.org/stable/c/28aa3cfce12487614219e7667ec84424e1f43227"},{"url":"https://git.kernel.org/stable/c/1773c19fa55e944cdd2634e2d9e552f87f2d38d5"},{"url":"https://git.kernel.org/stable/c/bbd302c4b79df10197ffa7270ca3aa572eeca33c"},{"url":"https://git.kernel.org/stable/c/4668619092554e1b95c9a5ac2941ca47ba6d548a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:31:49.470Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.10.241"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"5.15.190"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.1.148"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.6.102"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.12.42"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.15.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.16.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T17:40:34.331Z"}}]}}}