CVE-2026-46121 mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: protect memcgpath kfree with damonsysfslock Patch series "mm/damon/sysfs-schemes: fix use-after-free for memcgpath". Reads of 'memcgpath' and 'path' files in DAMON sysfs interface could race with their...

CVE-2026-46121

The CVE-2026-46121 issue affects the Linux kernel DAMON sysfs interface (mm/damon/sysfs-schemes). A race between reads and writes of memcg_path and path can lead to a use-after-free when a user reads or writes the sysfs files while a buffer is being deallocated. The root cause is that user-direct...

CVE-2026-46121 mm/damon/sysfs-schemes: protect memcg_path kfree() with damon_sysfs_lock

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs-schemes: protect memcgpath kfree with damonsysfslock Patch series "mm/damon/sysfs-schemes: fix use-after-free for memcgpath". Reads of 'memcgpath' and 'path' files in DAMON sysfs interface could race with their...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the lack of locking protection for the path kfree function in mm damon sysfs-schemes. This...

PT-2026-44244

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.11-1.1 Description A use-after-free issue exists in the DAMON sysfs interface. Direct reads and writes of the memcg path and path files can race, as the write operation deallocates the buffer pointed to by...

PT-2026-44306

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified openSUSE Tumbleweed versions prior to kernel-devel-7.0.11-1.1 Description A use-after-free issue exists in the Linux kernel within the DAMON sysfs schemes. The damon sysfs quot goal-path variable ca...

CVE-2026-46020

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate damosquotagoal-nid for nodememused,freebp Patch series "mm/damon/core: validate damosquotagoal-nid". nodememcgused,freebp DAMOS quota goals receive the node id. The node id is used for simeminfonode and...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: catch commit test ctx allocation failure The patch series “mm/damon/sysfs: fix commit test damonctx deallocation” addresses this issue. The DAMON sysfs interface dynamically allocates and uses a damonctx object to...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check contexts-nr in repeatcallfn damonsysfsrepeatcallfn calls damonsysfsupdtunedintervals, damonsysfsupdschemesstats, and damonsysfsupdschemeseffectivequotas without checking contexts-nr. If nrcontexts is set to ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: The commit test for ctx always results in memory deallocation. The damonctx used to test online DAMON parameters commits inputs only after the test fails. This means that memory is leaked for every successful onli...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fixed the issue of parameter context leaks during the damonsysfsnewtestctx function failure. Patches in the series “mm/damon/sysfs: fixed memory leaks and NULL pointer dereferencing issues”, version 4. DAMONSYSFS...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: The code checks contexts-nr before accessing contextsarr0. Multiple sysfs command paths dereference contextsarr0 without first verifying that kdamond-contexts-nr == 1. A user can set nrcontexts to 0 via sysfs whil...

Linux Distros Unpatched Vulnerability : CVE-2026-31653

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before t...

Linux Distros Unpatched Vulnerability : CVE-2026-31457

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/damon/sysfs: check contexts-nr in repeatcallfn damonsysfsrepeatcallfn calls damonsysfsupdtunedintervals, damonsysfsupdschemesstats, and...

SUSE CVE-2026-31653

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before the damoncall. It could happen, for example, when te damon context was...

CVE-2026-31653

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before the damoncall. It could happen, for example, when te damon context was...

CVE-2026-31653 mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before the damoncall. It could happen, for example, when te damon context was...

CVE-2026-31653

Summary : CVE-2026-31653 impacts the Linux kernel DAMON subsystem (DAMON_SYSFS). When a monitored process terminates before damon_call() runs, a dynamically allocated repeat_call_control is not deallocated, causing a memory leak. The connected sources document the root cause and confirm the fix: ...

EUVD-2026-25546

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before the damoncall. It could happen, for example, when te damon context was...

CVE-2026-31653 mm/damon/sysfs: dealloc repeat_call_control if damon_call() fails

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: dealloc repeatcallcontrol if damoncall fails damoncall for repeatcallcontrol of DAMONSYSFS could fail if somehow the kdamond is stopped before the damoncall. It could happen, for example, when te damon context was...