EUVD-2026-86125

In the Linux kernel, the following vulnerability has been resolved: sched/isolation: Defer freeing of cpumask memblock memory to initcall When testing a linux-next kernel with commit 59bd1d914bb5 "memblock: warn when freeing reserved memory before memory map is initialized", the following warning...

CVE-2026-93112

CVE-2026-93112 affects the Linux kernel BPF subsystem. The vulnerability is in bpf_cpumask_populate() , whose destination parameter is typed as struct cpumask * instead of struct bpf_cpumask *. This type mismatch allows the BPF verifier to accept borrowed, read-only cpumask pointers (e.g., from s...

CVE-2026-93112 bpf: Require a BPF cpumask for bpf_cpumask_populate()

In the Linux kernel, the following vulnerability has been resolved: bpf: Require a BPF cpumask for bpfcpumaskpopulate bpfcpumaskpopulate writes to its destination with bitmapcopy, but the destination is typed as struct cpumask . That allows the verifier to accept borrowed cpumask pointers returne...

CVE-2026-93112 bpf: Require a BPF cpumask for bpf_cpumask_populate()

In the Linux kernel, the following vulnerability has been resolved: bpf: Require a BPF cpumask for bpfcpumaskpopulate bpfcpumaskpopulate writes to its destination with bitmapcopy, but the destination is typed as struct cpumask . That allows the verifier to accept borrowed cpumask pointers returne...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: sh: cpuinfo: Fixed a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS are selected, cpumaxbitswarn generates a runtime warning similar to the following when showing /proc/cpuinfo. This issue...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: UM: cpuinfo: Fixed a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS are selected, cpumaxbitswarn generates a runtime warning similar to the following, while we display /proc/cpuinfo. This...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1, and Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ACPI: PAD: fix crash in exitroundrobin The kernel occasionally crashes in cpumaskclearcpu, which is called within exitroundrobin, because when executing clearbitnr, addr with nr set to 0xffffffff, the address calculation may caus...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dma-mapping: Benchmark: Properly handling NUMANONODE. The cpumaskofnode function can be called within domapbenchmark when dealing with NUMANONODE. This results in the following issue reported by the sanitizer tool: UBSAN: Array...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Tracing: Prevent an incorrect count for tracingcpumaskwrite. If a large count is provided, it will trigger a warning in bitmapparseuser. Also, check for zero in that case...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/iucv: Avoid explicit allocation of the cpumask variable on the stack. For the CONFIGCPUMASKOFFSTACK=y kernel, explicit allocation of the cpumask variable on the stack is not recommended, as it may cause a potential stack...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix for accessing freed irq affinityhint In stmmacrequestirqmultimsi, a pointer to the stack variable cpumask is passed to irqsetaffinityhint. This value is stored in irqdesc-affinityhint, but once...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: net/dpaa2: Avoid explicit allocation of the cpumask variable on the stack. For the CONFIGCPUMASKOFFSTACK=y kernel, explicit allocation of the cpumask variable on the stack is not recommended, as it may cause a potential stack...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Topology: Keep the cpumask unchanged when printing cpumap. During fuzz testing, the following warning was discovered: Different return values 15 and 11 from vsnprintf"%pbl",.... Warning: “keyward” is a warning in kvasprintf...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: MIPS: cpuinfo: Fixed a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS are selected, cpumaxbitswarn generates a runtime warning similar to the following, while we display /proc/cpuinfo...

UBUNTU-CVE-2026-72181

In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASKOFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIGCPUMASKOFFSTACK is enabled, cpumaskvart is a pointer. Consequently, sizeofnewmask evaluates to the pointer size...

PT-2026-72369

In the Linux kernel, the following vulnerability has been resolved: mips: sched: Fix CPUMASK OFFSTACK memory corruption This patch addresses a critical memory management flaw. When CONFIG CPUMASK OFFSTACK is enabled, cpumask var t is a pointer. Consequently, sizeofnew mask evaluates to the pointe...

CVE-2026-53187

A flaw was found in the Linux kernel's RDMA/core component. A local attacker could supply an invalid cpuid through the UVERBSATTRALLOCDMAHCPUID attribute without proper validation. This improper validation could lead to an out-of-bounds read of the cpumask bitmap. On systems configured with...

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

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...