CVE-2021-47088

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

CVE-2021-47088

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

CVE-2021-47088 mm/damon/dbgfs: protect targets destructions with kdamond_lock

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

CVE-2021-47088 mm/damon/dbgfs: protect targets destructions with kdamond_lock

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

CVE-2021-47088

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

CVE-2021-47088: Use After Free

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates current monitoring targets in 'dbgfstargetidsread' while holding the corresponding 'kdamondlock'. However, it also destructs the...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a security issue in mm/damon/dbgfs that could lead to reuse after release...

CVE-2021-46937

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases the reference counts of 'struct pid's for targets from the 'targetids' file write callback 'dbgfstargetidswrite', but decreases the...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases the reference counts of 'struct pid's for targets from the 'targetids' file write callback 'dbgfstargetidswrite', but decreases the...

CVE-2021-46937 mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfs_target_ids_write()'

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases the reference counts of 'struct pid's for targets from the 'targetids' file write callback 'dbgfstargetidswrite', but decreases the...

CVE-2021-46937

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases the reference counts of 'struct pid's for targets from the 'targetids' file write callback 'dbgfstargetidswrite', but decreases the...

CVE-2021-46937

The connected Nessus entry confirms CVE-2021-46937 affects the Linux kernel DAMON debugfs interface: repeated writes to the target_ids file increase pid reference counts without corresponding decreases, causing a memory leak of struct pid. The issue is fixed by a kernel patch that decrements PID ...

CVE-2021-46937: Exposure of Resource to Wrong Sphere

In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases the reference counts of 'struct pid's for targets from the 'targetids' file write callback 'dbgfstargetidswrite', but decreases the...

kernel: mm/damon/dbgfs: protect targets destructions with kdamond_lock

A race condition was found in the Linux kernel's DAMON debugfs interface mm/damon/dbgfs. The code iterates current monitoring targets while holding the corresponding kdamondlock, but destructs the monitoring targets without holding the lock, potentially causing a use-after-free bug...

PT-2022-33289

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.19.6 Description The issue is related to the mm/damon/dbgfs component, where duplicate context directory creation can occur. This problem was introduced in version v5.15 and is fixed in version v5.19.6. The...

PT-2022-33694

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.64 Description The issue is related to the mm/damon/dbgfs component, where duplicate context directory creation can occur. The actual impact and attack plausibility have not yet been proven. Recommendations...

WS-2022-0023

mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite'...

GSD-2022-1000058 mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfs_target_ids_write()'

mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.13 by commit...

PT-2021-27307

Name of the Vulnerable Software and Affected Versions: Linux Kernel versions prior to v5.15.12 Description: The issue concerns the protection of targets destructions with kdamond lock in the mm/damon/dbgfs component. It was introduced in version v5.15 and fixed in version v5.15.12. The actual...