Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-003914)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003914 advisory. In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-000528)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-000528 advisory. In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a...

EUVD-2019-9069

Malware in sbrugna...

Linux Distros Unpatched Vulnerability : CVE-2019-19813

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a...

SUSE CVE-2019-19448

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

Arbitrary Code Execution

kernel is vulnerable to arbitrary code execution. A user-after-free occurs in trymergefreespace in fs/btrfs/free-space-cache.c when mounting malicious btrfs filesystem image and subsequently making a syncfs system call. This could potentially lead to arbitrary code execution on the OS...

Linux kernel syncfs DoS

The vulnerability of the syncfs system call implementation in Linux operating systems relates to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to cause a service failure by executing functions such as mutexcanspinonowner, btrfsqgroupfreemeta, and...

Linux kernel try_merge_free_space Buffer Overflow

The vulnerability of the trymergefreespace function located in fs/btrfs/free-space-cache.c in the Linux kernel relates to the use of memory after it is freed. Exploiting this vulnerability allows an attacker to compromise the confidentiality, integrity, and accessibility of protected information ...

CVE-2019-19813

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in mutexlock in kernel/locking/mutex.c. This is related to mutexcanspinonowner in kernel/locking/mutex.c, btrfsqgroupfreemeta in...

CVE-2019-19813

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in mutexlock in kernel/locking/mutex.c. This is related to mutexcanspinonowner in kernel/locking/mutex.c, btrfsqgroupfreemeta in...

CVE-2019-19813

In the Linux kernel 5.0.21, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in mutexlock in kernel/locking/mutex.c. This is related to mutexcanspinonowner in kernel/locking/mutex.c, btrfsqgroupfreemeta in...

DEBIAN-CVE-2019-19448

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

UBUNTU-CVE-2019-19448

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

Design/Logic Flaw

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

CVE-2019-19448

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in trymergefreespace in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the...

CVE-2019-19448

CVE-2019-19448 is a use-after-free in Linux kernel’s Btrfs code (try_merge_free_space in fs/btrfs/free-space-cache.c). It can be triggered by mounting a crafted Btrfs image and performing operations followed by a syncfs, due to a pointer alias between left and right data structures. Affected: Lin...

PT-2019-4484

Name of the Vulnerable Software and Affected Versions Linux kernel versions 5.0.21 and 5.3.11 Description The issue is related to the use of memory after it has been freed in the try merge free space function of the Linux kernel, specifically in the fs/btrfs/free-space-cache.c file. This can be...

PT-2019-4492

Name of the Vulnerable Software and Affected Versions Linux kernel version 5.0.21 Description The issue is related to a use-after-free in the Linux kernel, specifically when mounting a crafted btrfs filesystem image, performing certain operations, and then making a syncfs system call. This is...