The vulnerability of the last_cmd_set() function in the kernel/trace/traceevents_synth.c module, which supports Linux kernel tracing, allows a hacker to cause a service failure.

The vulnerability of the lastcmdset function in the kernel/trace/traceeventssynth.c module, which supports kernel tracing in Linux operating systems, is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-7531 Use-after-free in PQC hybrid key-share handling

Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 released in 5.9.1: a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory...

CVE-2026-53094

A flaw was found in the Linux kernel's Berkeley Packet Filter BPF component. When a dev-bound-only BPF program undergoes Just-In-Time JIT compilation with constant blinding enabled, a stale pointer to a freed program can occur. This issue arises when the network namespace is destroyed, leading to...

CVE-2026-57236

A flaw was found in Nokogiri, an XML and HTML library for Ruby. When an attacker provides an invalid encoding to the Documentencoding= function, the library frees the document's current encoding string without replacing it. This leaves the document referencing freed memory, which can lead to a...

CVE-2026-57438 Nokogiri: Possible Use-After-Free in XInclude Processing

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, XInclude substitution performed by Nokogiri::XML::Nodedoxinclude replaced each in place, freeing the include node along with its children such as and its descendants and any namespaces declared on...

libxslt: use-after-free with key data stored cross-RVT

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash...

UBUNTU-CVE-2026-53189

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: update file PMD counter before folioput splithugepmdlocked updates the file/shmem RSS counter after dropping the PMD mapping's folio reference. If folioput drops the last reference, mmcounterfile can later read fre...

CVE-2026-53185 zram: fix use-after-free in zram_bvec_write_partial()

In the Linux kernel, the following vulnerability has been resolved: zram: fix use-after-free in zrambvecwritepartial zramreadpage picks the sync or async backing device read path based on whether the parent bio is NULL. zrambvecwritepartial passes its parent bio down, so for ZRAMWB slots the read...

PT-2026-52281

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the zram bvec write partial function. The zram read page function determines whether to use a synchronous or asynchronous backing device read path based ...

The vulnerability of the dependency management mechanism for HTTP/2 protocols in the libcurl library of the software tool for interacting with servers via cURL allows a attacker to cause a service failure.

The vulnerability of the dependency management mechanism for HTTP/2, as well as the libcurl library used in the cURL client software for interacting with servers, relates to the possibility of exploiting memory after it is freed. Exploiting this vulnerability could allow a remote attacker to caus...

CVE-2026-52912

A flaw was found in the Linux kernel's netfilter component. This vulnerability occurs because a queued bridge packet can retain a freed bridge master in its skb-dev field until it is reinjected. When the packet is later reinjected, the system attempts to use the freed bridge master, leading to a...

EUVD-2026-38839

In the Linux kernel, the following vulnerability has been resolved: net: ena: PHC: Fix potential use-after-free in gettimestamp Move the phc-active check and resp pointer assignment to after acquiring the spinlock. Previously, phc-active was checked without holding the lock, and resp was cached...

CVE-2026-52971

In the Linux kernel, the following vulnerability has been resolved: net: ena: PHC: Fix potential use-after-free in gettimestamp Move the phc-active check and resp pointer assignment to after acquiring the spinlock. Previously, phc-active was checked without holding the lock, and resp was cached...

CVE-2026-52917

A flaw was found in the Linux kernel's Stream Control Transmission Protocol SCTP diagnostics. When performing a socket diagnostic sockdiag lookup, the system may attempt to access memory related to an SCTP association that has already been freed. This can lead to an out-of-bounds read from...

Astra Linux – Vulnerability in libpng1.6

LIBPNG is a reference library used in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. In versions 1.2.1 through 1.6.55, pngsettRNS and pngsetPLTE each act as aliases for a heap-allocated buffer between pngstruct and pnginfo. This buffer shares a...

UBUNTU-CVE-2026-8925

The curl logic that works with SASL authentication could end up cleaning up the GSASL context twice without clearing the pointer in between, making it free the same pointer twice...

libpng: libpng: Arbitrary code execution due to use-after-free vulnerability

A flaw was found in libpng, a library used for processing PNG Portable Network Graphics image files. This vulnerability arises from improper memory management where a heap-allocated buffer is aliased between internal data structures. When specific functions are called, a freed memory region can...

CVE-2026-52917

In the Linux kernel, the following vulnerability has been resolved: sctp: diag: reject stale associations in dumpone path The SCTP exact sockdiag lookup can hold a transport reference, block on locksocksk, and then resume after sctpassociationfree has marked the association dead and freed its bin...

PT-2026-51865

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the get timestamp function of the ENA network driver. The problem occurs because the phc-active check and the assignment of the resp pointer were perform...

libpng: libpng: Arbitrary code execution due to use-after-free vulnerability

A flaw was found in libpng, a library used for processing PNG Portable Network Graphics image files. This vulnerability arises from improper memory management where a heap-allocated buffer is aliased between internal data structures. When specific functions are called, a freed memory region can...