{"timestamp":"2024-09-10T17:10:12.992201Z","id":"CVE-2022-48765","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["arch/x86/kvm/lapic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"8003c9ae204e21204e49816c5ea629357e283b06","lessThan":"54b3439c8e70e0bcfea59aeef9dd98908cbbf655","versionType":"git","status":"affected"},{"version":"8003c9ae204e21204e49816c5ea629357e283b06","lessThan":"ce55f63f6cea4cab8ae9212f73285648a5baa30d","versionType":"git","status":"affected"},{"version":"8003c9ae204e21204e49816c5ea629357e283b06","lessThan":"35fe7cfbab2e81f1afb23fc4212210b1de6d9633","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["arch/x86/kvm/lapic.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"4.10","status":"affected"},{"version":"0","lessThan":"4.10","versionType":"semver","status":"unaffected"},{"version":"5.15.19","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"5.16.5","lessThanOrEqual":"5.16.*","versionType":"semver","status":"unaffected"},{"version":"5.17","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD-CWE-noinfo

OR
          *cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.5
          *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.15.19

CVE: https://git.kernel.org/stable/c/35fe7cfbab2e81f1afb23fc4212210b1de6d9633 Types: Patch

CVE: https://git.kernel.org/stable/c/54b3439c8e70e0bcfea59aeef9dd98908cbbf655 Types: Patch

CVE: https://git.kernel.org/stable/c/ce55f63f6cea4cab8ae9212f73285648a5baa30d Types: Patch

kernel.org: https://git.kernel.org/stable/c/35fe7cfbab2e81f1afb23fc4212210b1de6d9633 Types: Patch

kernel.org: https://git.kernel.org/stable/c/54b3439c8e70e0bcfea59aeef9dd98908cbbf655 Types: Patch

kernel.org: https://git.kernel.org/stable/c/ce55f63f6cea4cab8ae9212f73285648a5baa30d Types: Patch

https://git.kernel.org/stable/c/35fe7cfbab2e81f1afb23fc4212210b1de6d9633

https://git.kernel.org/stable/c/54b3439c8e70e0bcfea59aeef9dd98908cbbf655

https://git.kernel.org/stable/c/ce55f63f6cea4cab8ae9212f73285648a5baa30d

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

KVM: LAPIC: Also cancel preemption timer during SET_LAPIC

The below warning is splatting during guest reboot.

  ------------[ cut here ]------------
  WARNING: CPU: 0 PID: 1931 at arch/x86/kvm/x86.c:10322 kvm_arch_vcpu_ioctl_run+0x874/0x880 [kvm]
  CPU: 0 PID: 1931 Comm: qemu-system-x86 Tainted: G          I       5.17.0-rc1+ #5
  RIP: 0010:kvm_arch_vcpu_ioctl_run+0x874/0x880 [kvm]
  Call Trace:
   <TASK>
   kvm_vcpu_ioctl+0x279/0x710 [kvm]
   __x64_sys_ioctl+0x83/0xb0
   do_syscall_64+0x3b/0xc0
   entry_SYSCALL_64_after_hwframe+0x44/0xae
  RIP: 0033:0x7fd39797350b

This can be triggered by not exposing tsc-deadline mode and doing a reboot in
the guest. The lapic_shutdown() function which is called in sys_reboot path
will not disarm the flying timer, it just masks LVTT. lapic_shutdown() clears
APIC state w/ LVT_MASKED and timer-mode bit is 0, this can trigger timer-mode
switch between tsc-deadline and oneshot/periodic, which can result in preemption
timer be cancelled in apic_update_lvtt(). However, We can't depend on this when
not exposing tsc-deadline mode and oneshot/periodic modes emulated by preemption
timer. Qemu will synchronise states around reset, let's cancel preemption timer
under KVM_SET_LAPIC.

kernel.org https://git.kernel.org/stable/c/35fe7cfbab2e81f1afb23fc4212210b1de6d9633 [No types assigned]

kernel.org https://git.kernel.org/stable/c/54b3439c8e70e0bcfea59aeef9dd98908cbbf655 [No types assigned]

kernel.org https://git.kernel.org/stable/c/ce55f63f6cea4cab8ae9212f73285648a5baa30d [No types assigned]