Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from procfs acquiring a build ID when holding a VMA lock, potentially leading to deadlocks...

CVE-2026-23077

In the Linux kernel, the following vulnerability has been resolved: mm/vma: fix anonvma UAF on mremap faulted, unfaulted merge Patch series "mm/vma: fix anonvma UAF on mremap faulted, unfaulted merge", v2. Commit 879bca0a2c4f "mm/vma: fix incorrectly disallowed anonymous VMA merges" introduced th...

CVE-2026-23077

CVE-2026-23077 concerns a Linux kernel mm/vma anon_vma UAF during mremap() of faulted adjacent VMAs. The issue spanned three adjacency cases (prev/next both unfaulted, and combos with faulted adjacent), and the patch series fixes incorrect anon_vma merging and missing fork checks, including self-...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005090)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005090 advisory. In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Fix Virtual Memory mapping boundaries calculation Calculating the size of the mappe...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-004949)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-004949 advisory. In the Linux kernel, the following vulnerability has been resolved: perf/core: Prevent VMA split of buffer mappings The perf mmap code is careful about mmap'ing the...

The vulnerabilities in the drivers/gpu/drm/xe/xe_exec.c, drivers/gpu/drm/xe/xe_vm.c, and include/uapi/drm/xe_drm.h modules of the Linux operating system allow a hacker to trigger a service failure.

The vulnerabilities in the drivers/gpu/drm/xe/xeexec.c, drivers/gpu/drm/xe/xevm.c, and include/uapi/drm/xedrm.h modules of the Linux operating system are related to unlimited resource allocation. Exploiting these vulnerabilities can allow an attacker to cause service failures...

Azure Linux 3.0 Security Update: kernel (CVE-2025-38084)

"The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-38084 advisory. - In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: unshare page tables during...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001609)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001609 advisory. drivers/net/can/usb/gsusb.c in the Linux kernel 4.9.x and 4.10.x before 4.10.2 interacts incorrectly with the CONFIGVMAPSTACK option, which allows local users to cau...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-001340)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001340 advisory. An issue was discovered in Linux: KVM through Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and can lead to pages being freed while still...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001225)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001225 advisory. drivers/net/usb/catc.c in the Linux kernel 4.9.x before 4.9.11 interacts incorrectly with the CONFIGVMAPSTACK option, which allows local users to cause a denial of...

CVE-2025-71130

In the Linux kernel, the following vulnerability has been resolved: drm/i915/gem: Zero-initialize the eb.vma array in i915gemdoexecbuffer Initialize the eb.vma array with values of 0 when the eb structure is first set up. In particular, this sets the eb-vmai.vma pointers to NULL, simplifying...

CVE-2025-68802

CVE-2025-68802 concerns the Linux kernel DRM XE path. The vulnerability stems from exec/vm_bind ioctls allowing an unbounded num_syncs value, enabling an excessively large allocation and warnings from the page allocator. The fix introduces DRM_XE_MAX_SYNCS (1024) and rejects requests exceeding th...

kernel: mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory

A use-after-free memory bug exists in the linux kernel, such that unpoisonmemory tries to check the PGHWPoison flags of an uninitialized page. So VMBUGONPAGEPagePoisonedpage is triggered, leading to damage to the system availability and integrity...

SUSE CVE-2022-50849

In the Linux kernel, the following vulnerability has been resolved: pstore: Avoid kcore oops by vmaping with VMIOREMAP An oops can be induced by running 'cat /proc/kcore /dev/null' on devices using pstore with the ram backend because kmapatomic assumes lowmem pages are accessible with va. Unable ...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-993011)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-993011 advisory. In the Linux kernel, the following vulnerability has been resolved: android: binder: stop saving a pointer to the VMA Do not record a pointer to a VMA outside of the...

CVE-2022-50849

In the Linux kernel, the following vulnerability has been resolved: pstore: Avoid kcore oops by vmaping with VMIOREMAP An oops can be induced by running 'cat /proc/kcore /dev/null' on devices using pstore with the ram backend because kmapatomic assumes lowmem pages are accessible with va. Unable ...

CVE-2022-50849

CVE-2022-50849: In the Linux kernel, pstore ram-backend backends can trigger an oops when reading /proc/kcore due to kmap_atomic() assuming lowmem pages are addressable via __va(). The bug arises when vmap() is used without mapping the ramoops lowmem pages; read_kcore and aligned_vread can pass a...

CVE-2022-50849 pstore: Avoid kcore oops by vmap()ing with VM_IOREMAP

In the Linux kernel, the following vulnerability has been resolved: pstore: Avoid kcore oops by vmaping with VMIOREMAP An oops can be induced by running 'cat /proc/kcore /dev/null' on devices using pstore with the ram backend because kmapatomic assumes lowmem pages are accessible with va. Unable ...

CVE-2022-50849

In the Linux kernel, the following vulnerability has been resolved: pstore: Avoid kcore oops by vmaping with VMIOREMAP An oops can be induced by running 'cat /proc/kcore /dev/null' on devices using pstore with the ram backend because kmapatomic assumes lowmem pages are accessible with va. Unable ...

CVE-2023-54157 binder: fix UAF of alloc->vma in race with munmap()

In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF of alloc-vma in race with munmap cmllamas: clean forward port from commit 015ac18be7de "binder: fix UAF of alloc-vma in race with munmap" in 5.10 stable. It is needed in mainline after the revert of commit...