UBUNTU-CVE-2022-49651

In the Linux kernel, the following vulnerability has been resolved: srcu: Tighten cleanupsrcustruct GP checks Currently, cleanupsrcustruct checks for a grace period in progress, but it does not check for a grace period that has not yet started but which might start at any time. Such a situation...

CVE-2022-49651

CVE-2022-49651 affects the Linux kernel. The advisory states that cleanup_srcu_struct() now checks for a grace period that is started but not yet started, addressing a potential use-after-free (UAF). It is resolved by a commit tightening GP checks in cleanup_srcu_struct(), with references to kern...

CVE-2022-49651

In the Linux kernel, the following vulnerability has been resolved: srcu: Tighten cleanupsrcustruct GP checks Currently, cleanupsrcustruct checks for a grace period in progress, but it does not check for a grace period that has not yet started but which might start at any time. Such a situation...

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes. The following security bugs were fixed: CVE-2022-48956: ipv6: avoid use-after-free in ip6fragment bsc1231893. CVE-2022-48960: net: hisilicon: Fix potential use-after-free in hix5hd2rx bsc1231979...

kernel: drm/amdkfd: lock dependency warning with srcu

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix lock dependency warning with srcu ====================================================== WARNING: possible circular locking dependency detected 6.5.0-kfd-yangp 2289 Not tainted...

CVE-2024-50114

CVE-2024-50114 affects Linux kernel KVM on arm64. The flaw originates in the vCPU teardown path when a failed vCPU creation leads to an MMIO redistributor being unregistered, triggering a use-after-free in kvm_put_kvm during VM teardown. The root cause is improper teardown ordering that could all...

DEBIAN-CVE-2022-49003

In the Linux kernel, the following vulnerability has been resolved: nvme: fix SRCU protection of nvmenshead list Walking the nvmenshead siblings list is protected by the head's srcu in nvmensheadsubmitbio but not nvmempathrevalidatepaths. Removing namespaces from the list also fails to synchroniz...

CVE-2022-49003 nvme: fix SRCU protection of nvme_ns_head list

In the Linux kernel, the following vulnerability has been resolved: nvme: fix SRCU protection of nvmenshead list Walking the nvmenshead siblings list is protected by the head's srcu in nvmensheadsubmitbio but not nvmempathrevalidatepaths. Removing namespaces from the list also fails to synchroniz...

CVE-2022-49003 nvme: fix SRCU protection of nvme_ns_head list

In the Linux kernel, the following vulnerability has been resolved: nvme: fix SRCU protection of nvmenshead list Walking the nvmenshead siblings list is protected by the head's srcu in nvmensheadsubmitbio but not nvmempathrevalidatepaths. Removing namespaces from the list also fails to synchroniz...

DEBIAN-CVE-2024-47744

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

CVE-2024-47744

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

UBUNTU-CVE-2024-47744

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

CVE-2024-47744 KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

CVE-2024-47744 KVM: Use dedicated mutex to protect kvm_usage_count to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: KVM: Use dedicated mutex to protect kvmusagecount to avoid deadlock Use a dedicated mutex to guard kvmusagecount to fix a potential deadlock on x86 due to a chain of locks and SRCU synchronizations. Translating the below lockdep...

CVE-2024-46830

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS Grab kvm-srcu when processing KVMSETVCPUEVENTS, as KVM will forcibly leave nested VMX/SVM if SMM mode is being toggled, and leaving nested VMX reads guest memory. Note,...

CVE-2024-46830 KVM: x86: Acquire kvm->srcu when handling KVM_SET_VCPU_EVENTS

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS Grab kvm-srcu when processing KVMSETVCPUEVENTS, as KVM will forcibly leave nested VMX/SVM if SMM mode is being toggled, and leaving nested VMX reads guest memory. Note,...

CVE-2024-46830 KVM: x86: Acquire kvm->srcu when handling KVM_SET_VCPU_EVENTS

In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Acquire kvm-srcu when handling KVMSETVCPUEVENTS Grab kvm-srcu when processing KVMSETVCPUEVENTS, as KVM will forcibly leave nested VMX/SVM if SMM mode is being toggled, and leaving nested VMX reads guest memory. Note,...

CVE-2024-46830

CVE-2024-46830 affects the Linux kernel KVM for x86. The vulnerability arises when acquiring kvm->srcu while handling KVM_SET_VCPU_EVENTS, because KVM will forcibly leave nested VMX/SVM during SMM toggling and leaving nested VMX can read guest memory. The described fix: grab SRCU unconditional...

SUSE CVE-2024-46785

In the Linux kernel, the following vulnerability has been resolved: eventfs: Use listdelrcu for SRCU protected list variable Chi Zhiling reported: We found a null pointer accessing in tracefs1, the reason is that the variable 'eichild' is set to LISTPOISON1, that means the list was removed in...

CVE-2024-46762

In the Linux kernel, the following vulnerability has been resolved: xen: privcmd: Fix possible access to a freed kirqfd instance Nothing prevents simultaneous ioctl calls to privcmdirqfdassign and privcmdirqfddeassign. If that happens, it is possible that a kirqfd created and added to the...