PT-2026-43122

Name of the Vulnerable Software and Affected Versions PuTTY versions 0.72 through 0.83 Description A double free issue exists in the RSA KEX Key Exchange, which is the process used by two parties to establish a shared secret key over an insecure channel. Recommendations Update to version 0.84...

RXSA-2026:13577 Important: kernel security update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: nvme: avoid double free special payload CVE-2024-41073 kernel: net: qlogic/qede: fix potential out-of-bounds read in qedetpacont and qedetpaend CVE-2025-40252 kernel: crypto: asymmetricke...

CVE-2026-43494

A flaw was found in the Linux kernel, specifically within the net/rds module. When a zerocopy page pin operation fails, a counter used for memory management opnents is not correctly reset. This can result in a double-free vulnerability, where the same memory is released twice. A local attacker...

UBUNTU-CVE-2026-43494

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

CVE-2026-43494 net/rds: reset op_nents when zerocopy page pin fails

In the Linux kernel, the following vulnerability has been resolved: net/rds: reset opnents when zerocopy page pin fails When iovitergetpages2 fails in rdsmessagezcopyfromuser, the pinned pages are released with putpage, and rm-data.opmmpznotifier is cleared. But we fail to properly clear...

OSV-2026-785 Heap-double-free in _dwarf_load_elf_symtab_symbols

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=514753154 Crash type: Heap-double-free Crash state: dwarfloadelfsymtabsymbols dwarfelfnlsetup dwarfinitpathdla...

PT-2026-44137

Name of the Vulnerable Software and Affected Versions Symfony Mailer affected versions not specified Description When using SendmailTransport in -t mode, recipient addresses are appended to the sendmail command line without a -- end-of-options separator. Because SymfonyComponentMimeAddress accept...

RHEL 9 : kernel-rt (RHSA-2026:19875)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:19875 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism...

Linux Distros Unpatched Vulnerability : CVE-2020-37239

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - libbabl 0.1.62 contains a broken double free detection vulnerability that allows attackers to bypass memory safety checks by exploiting signature overwriting in...

kernel: Linux kernel (qla2xxx): Double free vulnerability leads to denial of service and potential privilege escalation.

A flaw was found in the Linux kernel's qla2xxx block SCSI generic bsg interface. This vulnerability, a double free, occurs because certain vendor-specific handlers incorrectly call the bsgjobdone function on both successful and failed operation paths. A local user could exploit this to trigger...

freerdp: FreeRDP: Denial of Service via double free vulnerability during disconnect

A flaw was found in FreeRDP, a free implementation of the Remote Desktop Protocol. This double free vulnerability occurs during the cleanup process when a remote desktop session disconnects. Specifically, if a title allocation fails, a pointer to an application window is freed but not removed fro...

kernel: RDMA/umem: Fix double dma_buf_unpin in failure path

A flaw was found in the Linux kernel's RDMA/umem subsystem. A memory management error, specifically a double unpin of a dmabuf, can occur in a failure path during dmabuf pinning operations. This vulnerability could lead to system instability or a crash, resulting in a Denial of Service DoS...

kernel: RDMA/umem: Fix double dma_buf_unpin in failure path

A flaw was found in the Linux kernel's RDMA/umem subsystem. A memory management error, specifically a double unpin of a dmabuf, can occur in a failure path during dmabuf pinning operations. This vulnerability could lead to system instability or a crash, resulting in a Denial of Service DoS...

Advisory ROSA-SA-2026-3290

software: kernel-5.15 5.15.193 WASP: ROSA-CHROME unaffected versions = kernel-5.15-5.15.193-6 affected versions data.opnents field during buffer management. By exploiting the RDS TCP transport SORDSTRANSPORT=2 in conjunction with iouring, a local unprivileged attacker can cause memory corruption...

Astra Linux – Vulnerability in libgd2

In the gdgd2.c file of the GD Graphics Library also known as LibGD, the function gdImageGd2Ptr has a double-free issue starting from version 2.3. NOTE: The vendor’s stance is that the GD2 image format is a proprietary image format of LibGD. It should be considered obsolete and should only be used...

Astra Linux – Vulnerability in Nasm

In NASM 2.15.04rc3, there is a double-free vulnerability in the pptokline asm/preproc.c file. This issue has been fixed in the commit numbered 8806c3ca007b84accac21dd88b900fb03614ceb7...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: Tracing: Fixed a potential double-free issue in createvarref. In createvarref, initvarref is called to initialize the fields of the reffield variable. This variable is allocated in the previous function call, to createhistfield...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: btrfs: Do not double-complete the bio on errors during compressed reads I encountered some strange panics while fixing the error handling in btrfslookupbiosums. It turns out that the compression process will complete the bio we u...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ath10k: Skip ath10khalt during suspend for the driver state RESTARTING. A double-free crash occurs when FW recovery caused by wmi timeout/crash is followed by an immediate suspend event. FW recovery is triggered by...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rtc: amlogic-a4: fix double-free caused by devm The clock obtained through devmclkgetenabled is automatically managed by devres. It will be disabled and freed when the driver is detached. Manual calls to clkdisableunprepare in th...