Riskcovery

CVE-2024-46707

KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3

State
Published
Severity
Not scored
Published
Sep 13, 2024
Updated
May 11, 2026
Reserved
Sep 11, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Make ICC_*SGI*_EL1 undef in the absence of a vGICv3

On a system with a GICv3, if a guest hasn't been configured with GICv3 and that the host is not capable of GICv2 emulation, a write to any of the ICC_*SGI*_EL1 registers is trapped to EL2.

We therefore try to emulate the SGI access, only to hit a NULL pointer as no private interrupt is allocated (no GIC, remember?).

The obvious fix is to give the guest what it deserves, in the shape of a UNDEF exception.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 15818af2f7aa55eff375333cb7689df15d3f24efAffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 96b076e8ee5bc3a1126848c8add0f74bd30dc9d1Affected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8dAffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92Affected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 2073132f6ed3079369e857a8deb33d11bdd983bcAffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to before 3e6245ebe7ef341639e9a7e402b3ade8ad45a19fAffected
LinuxLinux
  • 3.11Affected
  • before 3.11Not affected
  • 5.10.225 through 5.10.*Not affected
  • 5.15.166 through 5.15.*Not affected
  • 6.1.107 through 6.1.*Not affected
  • 6.6.48 through 6.6.*Not affected
  • 6.10.7 through 6.10.*Not affected
  • 6.11 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.