{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40219","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.179Z","datePublished":"2025-12-04T14:50:42.996Z","dateUpdated":"2026-05-11T21:45:05.429Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:45:05.429Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI/IOV: Fix race between SR-IOV enable/disable and hotplug\n\nCommit 05703271c3cd (\"PCI/IOV: Add PCI rescan-remove locking when\nenabling/disabling SR-IOV\") tried to fix a race between the VF removal\ninside sriov_del_vfs() and concurrent hot unplug by taking the PCI\nrescan/remove lock in sriov_del_vfs(). Similarly the PCI rescan/remove lock\nwas also taken in sriov_add_vfs() to protect addition of VFs.\n\nThis approach however causes deadlock on trying to remove PFs with SR-IOV\nenabled because PFs disable SR-IOV during removal and this removal happens\nunder the PCI rescan/remove lock. So the original fix had to be reverted.\n\nInstead of taking the PCI rescan/remove lock in sriov_add_vfs() and\nsriov_del_vfs(), fix the race that occurs with SR-IOV enable and disable vs\nhotplug higher up in the callchain by taking the lock in\nsriov_numvfs_store() before calling into the driver's sriov_configure()\ncallback."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/iov.c"],"versions":[{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"3cddde484471c602bea04e6f384819d336a1ff84","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"7c37920c96b85ef4255a7acc795e99e63dd38d59","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"1047ca2d816994f31e1475e63e0c0b7825599747","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"97c18f074ff1c12d016a0753072a3afdfa0b9611","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"bea1d373098b22d7142da48750ce5526096425bc","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"f3015627b6e9ddf85cfeaf42405b3c194dde2c36","status":"affected","versionType":"git"},{"version":"18f9e9d150fccfa747875df6f0a9f606740762b3","lessThan":"a5338e365c4559d7b4d7356116b0eb95b12e08d5","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/pci/iov.c"],"versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"5.10.252","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.202","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.165","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.128","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.75","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.16","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.6","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/3cddde484471c602bea04e6f384819d336a1ff84"},{"url":"https://git.kernel.org/stable/c/d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b"},{"url":"https://git.kernel.org/stable/c/7c37920c96b85ef4255a7acc795e99e63dd38d59"},{"url":"https://git.kernel.org/stable/c/1047ca2d816994f31e1475e63e0c0b7825599747"},{"url":"https://git.kernel.org/stable/c/97c18f074ff1c12d016a0753072a3afdfa0b9611"},{"url":"https://git.kernel.org/stable/c/bea1d373098b22d7142da48750ce5526096425bc"},{"url":"https://git.kernel.org/stable/c/f3015627b6e9ddf85cfeaf42405b3c194dde2c36"},{"url":"https://git.kernel.org/stable/c/a5338e365c4559d7b4d7356116b0eb95b12e08d5"}],"title":"PCI/IOV: Fix race between SR-IOV enable/disable and hotplug","x_generator":{"engine":"bippy-1.2.0"}}}}