CVE-2026-64036

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

CVE-2026-64036 cgroup/rstat: validate cpu before css_rstat_cpu() access

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

CVE-2026-64036 cgroup/rstat: validate cpu before css_rstat_cpu() access

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

EUVD-2026-45609

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

CVE-2026-64036

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

PT-2026-61353

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The css rstat updated function, exposed as a BPF kfunc, fails to validate the cpu argument provided by the caller before using it for per-cpu rstat lookups. A BPF iter/cgroup program wit...

Linux Distros Unpatched Vulnerability : CVE-2025-21965

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU...

CVE-2025-38366 LoongArch: KVM: Check validity of "num_cpu" from user space

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Check validity of "numcpu" from user space The maximum supported cpu number is EIOINTCROUTEMAXVCPUS about irqchip EIOINTC, here add validation about cpu number to avoid array pointer overflow...

DEBIAN-CVE-2025-21965

In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl it can cause a kernel crash. To prevent this, validate prevcpu in...

CVE-2025-21965

In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl it can cause a kernel crash. To prevent this, validate prevcpu in...

UBUNTU-CVE-2025-21965

In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl it can cause a kernel crash. To prevent this, validate prevcpu in...

CVE-2025-21965

The CVE-2025-21965 case concerns a Linux kernel sched_ext bug where a BPF scheduler may pass an invalid prev_cpu to scx_bpf_select_cpu_dfl(), outside the valid nr_cpu_ids range. The resulting behavior can crash the kernel. The fix adds validation of prev_cpu in scx_bpf_select_cpu_dfl() and trigge...

CVE-2025-21965

In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl it can cause a kernel crash. To prevent this, validate prevcpu in...

CVE-2025-21965 sched_ext: Validate prev_cpu in scx_bpf_select_cpu_dfl()

In the Linux kernel, the following vulnerability has been resolved: schedext: Validate prevcpu in scxbpfselectcpudfl If a BPF scheduler provides an invalid CPU outside the nrcpuids range as prevcpu to scxbpfselectcpudfl it can cause a kernel crash. To prevent this, validate prevcpu in...

PT-2025-14346 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A kernel crash can occur if a BPF scheduler provides an invalid CPU as prev cpu to the scx bpf select cpu dfl function. This issue is resolved by validating prev cpu in scx bpf select...