CVE-2026-31429-POC

CVE-2026-31429 — Linux Kernel: Liberación Cross-Cache de Cabeza SKB Asignada por KFENCE mediante bpfprogtestrunskb Gravedad: Media CWE-763: Liberación de Puntero o Referencia Inválida Publicado: 2026-04-20 Subsistema afectado: net/core/skbuff.c — skbkfreehead Investigador: Antonius / w1sdom — Blu...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: powerpc/mm/fault: Fixed the reporting of kfence page faults. The copyfromkernelnofault function can be called when reading /proc/kcore. /proc/kcore may contain kfence objects that are not mapped, and reading these objects via...

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: crypto: qat – resolves a race condition during AER recovery During the error recovery process of the PCI AER system, the kernel driver may encounter a race condition related to the freeing of the resetdata structure’s memory. If...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: bpf, testrun: Fixed an alignment issue in bpfprogtestrunskb. We encountered a syzkaller issue due to an alignment fault for aarch64 architectures when KFENCE is enabled. When the size provided by the user’s bpf program is an o...

SUSE CVE-2026-80787

In the Linux kernel, the following vulnerability has been resolved: nvmet: pci-epf: fix use-after-free in nvmetpciepfexeciodwork nvmetpciepfexeciodwork submits an I/O command with req-execute and then waits for the command to complete and transfers the data back to the host. This wait is not need...

EUVD-2026-71430

In the Linux kernel, the following vulnerability has been resolved: nvmet: pci-epf: fix use-after-free in nvmetpciepfexeciodwork nvmetpciepfexeciodwork submits an I/O command with req-execute and then waits for the command to complete and transfers the data back to the host. This wait is not need...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net: preserved skbendoffset in skbunclonekeeptruesize syzbot discovered another way to trigger the infamous WARNONONCE delta truesize, and also ensure that TCP does not fill the new tailroom that skbexpandhead could obtain fro...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099781)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099781 advisory. In the Linux kernel, the following vulnerability has been resolved: PCI: Fix use-after-free in pcibusreleasedomainnr Commit c14f7ccc9f5d PCI: Assign PCI domain IDs b...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: net: skb: Fixed the cross-cache free of KFENCE-alocated skb heads. The value of SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g., 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: mm/slub: A check for s-flags was added in the alloctaggingslabfree hook function. When CONFIGMEMCG, CONFIGKFENCE, and CONFIGKMEMLEAK are enabled, the following warning always occurs. This happens because the following call sta...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: RISCV: Fixed the use of IPIs in kfenceprotectpage. flushtlbkernelrange may use IPIs to flush the TLBs of all cores, which triggers the following warning when irqs are disabled: 3.455330 WARNING: CPU: 1 PID: 0 at kernel/smp.c:8...

CVE-2026-31600

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing...

CVE-2026-31600

In the Linux kernel, the following vulnerability has been resolved: arm64: mm: Handle invalid large leaf mappings correctly It has been possible for a long time to mark ptes in the linear map as invalid. This is done for secretmem, kfence, realm dma memory un/share, and others, by simply clearing...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013482)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013482 advisory. In the Linux kernel, the following vulnerability has been resolved: net: preserve skbendoffset in skbunclonekeeptruesize syzbot found another way to trigger the...

EUVD-2026-23816

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429 net: skb: fix cross-cache free of KFENCE-allocated skb head

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...

CVE-2026-31429 net: skb: fix cross-cache free of KFENCE-allocated skb head

In the Linux kernel, the following vulnerability has been resolved: net: skb: fix cross-cache free of KFENCE-allocated skb head SKBSMALLHEADCACHESIZE is intentionally set to a non-power-of-2 value e.g. 704 on x8664 to avoid collisions with generic kmalloc bucket sizes. This ensures that...