Riskcovery

CVE-2022-50228

KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0

State
Published
Severity
Not scored
Published
Jun 18, 2025
Updated
May 11, 2026
Reserved
Jun 18, 2025

Read the record on cve.org

Description

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

KVM: SVM: Don't BUG if userspace injects an interrupt with GIF=0

Don't BUG/WARN on interrupt injection due to GIF being cleared, since it's trivial for userspace to force the situation via KVM_SET_VCPU_EVENTS (even if having at least a WARN there would be correct for KVM internally generated injections).

kernel BUG at arch/x86/kvm/svm/svm.c:3386! invalid opcode: 0000 [#1] SMP CPU: 15 PID: 926 Comm: smm_test Not tainted 5.17.0-rc3+ #264 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015 RIP: 0010:svm_inject_irq+0xab/0xb0 [kvm_amd] Code: <0f> 0b 0f 1f 00 0f 1f 44 00 00 80 3d ac b3 01 00 00 55 48 89 f5 53 RSP: 0018:ffffc90000b37d88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810a234ac0 RCX: 0000000000000006 RDX: 0000000000000000 RSI: ffffc90000b37df7 RDI: ffff88810a234ac0 RBP: ffffc90000b37df7 R08: ffff88810a1fa410 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff888109571000 R14: ffff88810a234ac0 R15: 0000000000000000 FS: 0000000001821380(0000) GS:ffff88846fdc0000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f74fc550008 CR3: 000000010a6fe000 CR4: 0000000000350ea0 Call Trace: <TASK> inject_pending_event+0x2f7/0x4c0 [kvm] kvm_arch_vcpu_ioctl_run+0x791/0x17a0 [kvm] kvm_vcpu_ioctl+0x26d/0x650 [kvm] __x64_sys_ioctl+0x82/0xb0 do_syscall_64+0x3b/0xc0 entry_SYSCALL_64_after_hwframe+0x44/0xae </TASK>

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 2c49adeb020995236e63722ef6d0bee14372f471Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 6fcbab82ccbcde915644085f73d3487938bda42dAffected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before c3396c1c8b87510f2ac2a674948156577559d42dAffected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 68e1313bb8809e8addcd9431f2bfea0e8ddbca80Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 8bb683490278005b4caf61e22b0828a04d282e86Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 6afe88fbb40eac3291a8728688d61fdc745d8008Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 3d4e2d884da6312df7c9b85fbf671de49204ead6Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before 2eee1dba70f57148fc7f8252613bfae6bd4b04e3Affected
  • 219b65dcf6c0bad83d51bfa12e25891c02de2414 to before f17c31c48e5cde9895a491d91c424eeeada3e134Affected
LinuxLinux
  • 2.6.32Affected
  • before 2.6.32Not affected
  • 4.9.326 through 4.9.*Not affected
  • 4.14.291 through 4.14.*Not affected
  • 4.19.256 through 4.19.*Not affected
  • 5.4.211 through 5.4.*Not affected
  • 5.10.137 through 5.10.*Not affected
  • 5.15.61 through 5.15.*Not affected
  • 5.18.18 through 5.18.*Not affected
  • 5.19.2 through 5.19.*Not affected
  • 6.0 and laterNot affected

References

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