CVE-2025-40219
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
PCI/IOV: Fix race between SR-IOV enable/disable and hotplug
In the Linux kernel, the following vulnerability has been resolved: PCI/IOV: Fix race between SR-IOV enable/disable and hotplug Commit 05703271c3cd ("PCI/IOV: Add PCI rescan-remove locking when enabling/disabling SR-IOV") tried to fix a race between the VF removal inside sriov_del_vfs() and concurrent hot unplug by taking the PCI rescan/remove lock in sriov_del_vfs(). Similarly the PCI rescan/remove lock was also taken in sriov_add_vfs() to protect addition of VFs. This approach however causes deadlock on trying to remove PFs with SR-IOV enabled because PFs disable SR-IOV during removal and this removal happens under the PCI rescan/remove lock. So the original fix had to be reverted. Instead of taking the PCI rescan/remove lock in sriov_add_vfs() and sriov_del_vfs(), fix the race that occurs with SR-IOV enable and disable vs hotplug higher up in the callchain by taking the lock in sriov_numvfs_store() before calling into the driver's sriov_configure() callback.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | 3cddde484471c602bea04e6f384819d336a1ff84 | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | d7673ac466eca37ec3e6b7cc9ccdb06de3304e9b | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | 7c37920c96b85ef4255a7acc795e99e63dd38d59 | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | 1047ca2d816994f31e1475e63e0c0b7825599747 | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | 97c18f074ff1c12d016a0753072a3afdfa0b9611 | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | bea1d373098b22d7142da48750ce5526096425bc | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | f3015627b6e9ddf85cfeaf42405b3c194dde2c36 | Unavailable | None listed |
| 18f9e9d150fccfa747875df6f0a9f606740762b3 | affected | git | a5338e365c4559d7b4d7356116b0eb95b12e08d5 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.0 | Unavailable | None listed |
| 5.10.252 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.202 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.165 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.128 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.75 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.16 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.6 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |