CVE-2025-40160
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)
xen/events: Return -EEXIST for bound VIRQs
In the Linux kernel, the following vulnerability has been resolved: xen/events: Return -EEXIST for bound VIRQs Change find_virq() to return -EEXIST when a VIRQ is bound to a different CPU than the one passed in. With that, remove the BUG_ON() from bind_virq_to_irq() to propogate the error upwards. Some VIRQs are per-cpu, but others are per-domain or global. Those must be bound to CPU0 and can then migrate elsewhere. The lookup for per-domain and global will probably fail when migrated off CPU 0, especially when the current CPU is tracked. This now returns -EEXIST instead of BUG_ON(). A second call to bind a per-domain or global VIRQ is not expected, but make it non-fatal to avoid trying to look up the irq, since we don't know which per_cpu(virq_to_irq) it will be in.
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) |
|---|---|---|---|---|---|
| 62cc5fc7b2e0218144e162afb8191db9b924b5e6 | affected | git | 612ef6056855c0aacb9b25d1d853c435754483f7 | Unavailable | None listed |
| 62cc5fc7b2e0218144e162afb8191db9b924b5e6 | affected | git | a1e7f07ae6b594f1ba5be46c6125b43bc505c5aa | Unavailable | None listed |
| 62cc5fc7b2e0218144e162afb8191db9b924b5e6 | affected | git | f81db055a793eca9d05f79658ff62adafb41d664 | Unavailable | None listed |
| 62cc5fc7b2e0218144e162afb8191db9b924b5e6 | affected | git | 07ce121d93a5e5fb2440a24da3dbf408fcee978e | 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) |
|---|---|---|---|---|---|
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.2 | Unavailable | None listed |
| 6.6.113 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.54 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.17.4 | unaffected | semver | Unavailable | 6.17.* | None listed |
| 6.18 | unaffected | original_commit_for_fix | Unavailable | * | None listed |