kernel: Linux kernel: Use-After-Free in net/gro due to improper handling of zerocopy skbs

A flaw was found in the Linux kernel's Generic Receive Offload GRO networking subsystem. This vulnerability occurs when skbgroreceive attempts to merge zerocopy socket buffers skbs without properly managing page reference counts, specifically when the SKBFLMANAGEDFRAGREFS flag is set. An attacker...

CVE-2026-6826

Concrete CMS 9.5.0 and below is vulnerable to unauthenticated file usage disclosure via missing permission check in the usage controller. Any unauthenticated visitor can request /ccm/system/dialogs/file/usage/fID with any file ID and receive a list of every page that references that file, includi...

CVE-2026-43464

Summary: CVE-2026-43464 affects the Linux kernel mlx5e driver in XDP multi-buffer scenarios. When XDP programs modify buffer layout via bpf_xdp_pull_data() or bpf_xdp_adjust_tail(), the driver previously failed to count dropped fragments, causing negative page reference counts during cleanup and ...

CVE-2025-38612 staging: fbtft: fix potential memory leak in fbtft_framebuffer_alloc()

In the Linux kernel, the following vulnerability has been resolved: staging: fbtft: fix potential memory leak in fbtftframebufferalloc In the error paths after fbinfo structure is successfully allocated, the memory allocated in fbdeferredioinit for info-pagerefs is not freed. Fix that by adding t...

PT-2024-41486 · Gnu · Linux

Уязвимость функции udmabuf vm fault драйвера udmabuf drivers/dma-buf/udmabuf.c ядра операционных систем Linux связана с нарушением подсчёта количества ссылок на страницы, отображённые в памяти. Эксплуатация уязвимости может позволить нарушителю оказать воздействие на целостность данных или вызват...

SUSE CVE-2021-47365

In the Linux kernel, the following vulnerability has been resolved: afs: Fix page leak There's a loop in afsextendwriteback that adds extra pages to a write we want to make to improve the efficiency of the writeback by making it larger. This loop stops, however, if we hit a page we can't write ba...

SUSE CVE-2024-35951

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix the error path in panfrostmmumapfaultaddr Subject: PATCH drm/panfrost: Fix the error path in panfrostmmumapfaultaddr If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier,...

AZL-67755 CVE-2024-35951 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix the error path in panfrostmmumapfaultaddr Subject: PATCH drm/panfrost: Fix the error path in panfrostmmumapfaultaddr If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier,...

DEBIAN-CVE-2024-35951

In the Linux kernel, the following vulnerability has been resolved: drm/panfrost: Fix the error path in panfrostmmumapfaultaddr Subject: PATCH drm/panfrost: Fix the error path in panfrostmmumapfaultaddr If some the pages or sgt allocation failed, we shouldn't release the pages ref we got earlier,...

UBUNTU-CVE-2024-26582

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix use-after-free with partial reads and async decrypt tlsdecryptsg doesn't take a reference on the pages from clearskb, so the putpage in tlsdecryptdone releases them, and we trigger a use-after-free in processrxlist...

Oracle Linux 7 : ELSA-2017-1842-1: / kernel (ELSA-2017-18421)

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2017-18421 advisory. - The doumount function in fs/namespace.c in the Linux kernel through 3.17 does not require the CAPSYSADMIN capability for doremountsb calls that chan...

Important: Red Hat Security Advisory: samba security and bug fix update

An update for samba is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

kernel: memory leak when merging buffers in SCSI IO vectors

It was found that in the Linux kernel through v4.14-rc5, biomapuseriov and biounmapuser in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bioaddpcpage merges them into one, but the page reference is never dropped, causing a...

kernel: memory leak when merging buffers in SCSI IO vectors

It was found that in the Linux kernel through v4.14-rc5, biomapuseriov and biounmapuser in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bioaddpcpage merges them into one, but the page reference is never dropped, causing a...

kernel: memory leak when merging buffers in SCSI IO vectors

It was found that in the Linux kernel through v4.14-rc5, biomapuseriov and biounmapuser in 'block/bio.c' do unbalanced pages refcounting if IO vector has small consecutive buffers belonging to the same page. bioaddpcpage merges them into one, but the page reference is never dropped, causing a...

Design/Logic Flaw

The nestedvmxcheckvmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service host OS memory consumption by leveraging the mishandling of page references...

CVE-2017-2596

The nestedvmxcheckvmptr function in arch/x86/kvm/vmx.c in the Linux kernel through 4.9.8 improperly emulates the VMXON instruction, which allows KVM L1 guest OS users to cause a denial of service host OS memory consumption by leveraging the mishandling of page references...

CVE-2014-9030

The dommuupdate function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMUMACHPHYSUPDATE...

CVE-2013-1432

Xen 4.1.x and 4.2.x, when the XSA-45 patch is in place, does not properly maintain references on pages stored for deferred cleanup, which allows local PV guest kernels to cause a denial of service premature page free and hypervisor crash or possibly gain privileges via unspecified vectors...