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CVE PROGRAM SOURCE RECORDUnscored

CVE-2024-46707

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

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 15818af2f7aa55eff375333cb7689df15d3f24efaffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 96b076e8ee5bc3a1126848c8add0f74bd30dc9d1affected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 94d4fbad01b19ec5eab3d6b50aaec4f9db8b2d8daffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 9d7629bec5c3f80bd0e3bf8103c06a2f7046bd92affected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 2073132f6ed3079369e857a8deb33d11bdd983bcaffected
  • 6211753fdfd05af9e08f54c8d0ba3ee516034878 to < 3e6245ebe7ef341639e9a7e402b3ade8ad45a19faffected

Linux Linux

Default version status: affected

  • 3.11affected
  • 0 to < 3.11unaffected
  • 5.10.225 to ≤ 5.10.*unaffected
  • 5.15.166 to ≤ 5.15.*unaffected
  • 6.1.107 to ≤ 6.1.*unaffected
  • 6.6.48 to ≤ 6.6.*unaffected
  • 6.10.7 to ≤ 6.10.*unaffected
  • 6.11 to ≤ *unaffected

References