kernel: Linux kernel: libceph null pointer dereference leads to denial of service

A flaw was found in libceph, a component of the Linux kernel. When processing a malformed CRUSH map, if a parent bucket's name exists but its type is missing, a null pointer dereference can occur. This issue can lead to a system crash, resulting in a Denial of Service DoS...

CVE-2025-31161_exploit

CVE-2025-31161 / CVE-2025-2825 Python 漏洞利用程序 要处理单个URL，请使用以下命令： python3 script.py -u http://example.com 要处理包含URL列表的文件（每行一个），请使用以下命令： python3 script.py -l urls.txt 要指定线程数，请使用 -t 参数。 脚本的运行结果（响应中包含 crushadmin 字符串的URL）将写入 output.txt 文件。...

Linux Distros Unpatched Vulnerability : CVE-2026-89656

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from...

CVE-2026-89656

A flaw was found in libceph within the Linux kernel. This vulnerability allows a local attacker to craft a malformed CRUSH map, which is used for data placement. By doing so, one data bucket can be made to reuse another bucket's memory workspace, leading to an out-of-bounds write. This memory...

AZL-100506 CVE-2026-89656 affecting package kernel 6.6.152.1-1

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

DEBIAN-CVE-2026-89656

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

CVE-2026-89656

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

UBUNTU-CVE-2026-89656

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

CVE-2026-89656

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

CVE-2026-89656 libceph: reject buckets with mismatched CRUSH ids

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

CVE-2026-89656

CVE-2026-89656 is an out-of-bounds write in the libceph subsystem of the Linux kernel . The crush_decode() function stores bucket data by array slot, but a malformed CRUSH map can cause one bucket to alias another's workspace by encoding a mismatched id. When a larger source bucket's permutation ...

CVE-2026-89656

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

EUVD-2026-76568

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

CVE-2026-89656 libceph: reject buckets with mismatched CRUSH ids

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crushdecode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucket...

PT-2026-90372

In the Linux kernel, the following vulnerability has been resolved: libceph: reject buckets with mismatched CRUSH ids crush decode stores bucket data by array slot, and the mapper later derives the per-bucket workspace index from the decoded bucket id. A malformed map can therefore make one bucke...

SUSE CVE-2026-68154

In the Linux kernel, the following vulnerability has been resolved: libceph: reject zero bucket types in crushdecode CRUSH bucket type 0 is reserved for devices. The mapper relies on that invariant and uses type 0 to identify leaf devices. If crushdecode accepts a bucket with type 0, a malformed...

SUSE CVE-2026-68157

In the Linux kernel, the following vulnerability has been resolved: libceph: guard missing CRUSH type name lookup Localized read selection can walk a parent bucket whose name exists in the CRUSH map while its type has no matching entry in typenames. getimmediateparent then dereferences a NULL...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100181)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100181 advisory. In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decodechooseargs A message of type CEPHMSGOSDMAP contai...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099971)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099971 advisory. In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decodechooseargs A message of type CEPHMSGOSDMAP contain...

CVE-2026-68154

A flaw was found in the Linux kernel's libceph component. A remote attacker could provide a specially crafted CRUSH map with a zero bucket type. This malformed map could cause the system to treat a negative bucket ID as a device, leading to an out-of-bounds access when indexing the OSD weight...