Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reset IRTE to host control if *new* route isn't postable Restore an IRTE back to host control (remapped or posted MSI mode) if the *new* GSI route prevents posting the IRQ directly to a vCPU, regardless of the GSI routing type. Updating the IRTE if and only if the new GSI is an MSI results in KVM leaving an IRTE posting to a vCPU. The dangling IRTE can result in interrupts being incorrectly delivered to the guest, and in the worst case scenario can result in use-after-free, e.g. if the VM is torn down, but the underlying host IRQ isn't freed.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected efc644048ecde54f016011fe10110addd0de348f before e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769; affected efc644048ecde54f016011fe10110addd0de348f before 116c7d35b8f72eac383b9fd371d7c1a8ffc2968b; affected efc644048ecde54f016011fe10110addd0de348f before 023816bd5fa46fab94d1e7917fe131b79ed1fb41; affected efc644048ecde54f016011fe10110addd0de348f before 3481fd96d801715942b6f69fe251133128156f30; affected efc644048ecde54f016011fe10110addd0de348f before b5de7ac74f69603ad803c524b840bffd36368fc3; affected efc644048ecde54f016011fe10110addd0de348f before 3066ec21d1a33896125747f68638725f456308db; affected efc644048ecde54f016011fe10110addd0de348f before 9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2 |
| Linux / Linux | affected 4.4; unaffected 0 before 4.4; unaffected 5.10.237 through 5.10.*; unaffected 5.15.181 through 5.15.*; unaffected 6.1.136 through 6.1.*; unaffected 6.6.89 through 6.6.*; unaffected 6.12.26 through 6.12.*; unaffected 6.14.5 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/e5f2dee9f7fcd2ff4b97869f3c66a0d89c167769
- https://git.kernel.org/stable/c/116c7d35b8f72eac383b9fd371d7c1a8ffc2968b
- https://git.kernel.org/stable/c/023816bd5fa46fab94d1e7917fe131b79ed1fb41
- https://git.kernel.org/stable/c/3481fd96d801715942b6f69fe251133128156f30
- https://git.kernel.org/stable/c/b5de7ac74f69603ad803c524b840bffd36368fc3
- https://git.kernel.org/stable/c/3066ec21d1a33896125747f68638725f456308db
- https://git.kernel.org/stable/c/9bcac97dc42d2f4da8229d18feb0fe2b1ce523a2
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.