UBUNTU-CVE-2026-53187

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

CVE-2026-53187

The CVE-2026-53187 issue affects the Linux kernel RDMA/core: the cpu_id supplied via UVERBS_ATTR_ALLOC_DMAH_CPU_ID is passed to cpumask_test_cpu() without validating it against nr_cpu_ids, leading to an out-of-bounds read of the cpumask bitmap. On kernels built with CONFIG_DEBUG_PER_CPU_MAPS this...

CVE-2026-53187 RDMA/core: Validate cpu_id against nr_cpu_ids in DMAH alloc

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

CVE-2026-53187 RDMA/core: Validate cpu_id against nr_cpu_ids in DMAH alloc

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

EUVD-2026-39278

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

CVE-2026-53187

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Validate cpuid against nrcpuids in DMAH alloc The cpuid attribute supplied by user space through UVERBSATTRALLOCDMAHCPUID is passed directly to cpumasktestcpu without first verifying that the value is within the valid...

CVE-2026-53180 timers/migration: Fix livelock in tmigr_handle_remote_up()

In the Linux kernel, the following vulnerability has been resolved: timers/migration: Fix livelock in tmigrhandleremoteup tmigrhandleremotecpu skips timerexpireremote when cpu == smpprocessorid, assuming the local softirq path already handled this CPU's timers. This assumption is wrong because...

CVE-2026-53162 memcg: use round-robin victim selection in refill_stock

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

CVE-2026-53162

Summary (CVE-2026-53162) : In the Linux kernel memcg subsystem, a non-NMI-safe path around random-number generation during NMI handling could corrupt the ChaCha batch state, enabling memcg charge draining. The fix replaces the get_random_u32_below() path with a per-CPU round-robin counter stored ...

EUVD-2026-39253

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

CVE-2026-53162 memcg: use round-robin victim selection in refill_stock

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

PT-2026-52283

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the RDMA/core component where the cpu id attribute, provided by user space via UVERBS ATTR ALLOC DMAH CPU ID, is passed to the cpumask test cpu function without...

PT-2026-52258

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the memory control group memcg where the get random u32 below function is called during memcg charge draining, which can occur in the Non-Maskable Interrupt NMI contex...

Linux Distros Unpatched Vulnerability : CVE-2026-49851

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, Mistune is vulnerable to a CPU exhaustion DoS due to superlinear approximately O...

EUVD-2026-38887

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: ccumix: fix inverted condition in ccumixtriggerfc Fix inverted condition that skips frequency change trigger, causing kernel panics during cpufreq scaling...

CVE-2026-53121

In the Linux kernel, the following vulnerability has been resolved: amd-pstate: Fix memory leak in amdpstateeppcpuinit On failure to set the epp, the function amdpstateeppcpuinit returns with an error code without freeing the cpudata object that was allocated at the beginning of the function...

CVE-2026-53076

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix OOB in pcpuinitvalue An out-of-bounds read occurs when copying element from a BPFMAPTYPECGROUPSTORAGE map to another pcpu map with the same valuesize that is not rounded up to 8 bytes. The issue happens when: 1. A...

CVE-2026-53069

In the Linux kernel, the following vulnerability has been resolved: net, bpf: fix null-ptr-deref in xdpmasterredirect for down master syzkaller reported a kernel panic in bondrrgenslaveid reached via xdpmasterredirect. Full decoded trace: https://syzkaller.appspot.com/bug?extid=80e046b8da2820b6ba...

CVE-2026-53019

In the Linux kernel, the following vulnerability has been resolved: clk: spacemit: ccumix: fix inverted condition in ccumixtriggerfc Fix inverted condition that skips frequency change trigger, causing kernel panics during cpufreq scaling...

CVE-2026-52973

In the Linux kernel, the following vulnerability has been resolved: futex: Drop CLONETHREAD requirement for private default hash alloc Currently needfutexhashallocatedefault depends on strict pthread semantics, abusing CLONETHREAD. This breaks the non-concurrency assumptions when doing the...