CVE-2026-31457 mm/damon/sysfs: check contexts->nr in repeat_call_fn

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 ...

CVE-2026-31458

Technical details (affected product, vulnerable component, and remediation) are not provided in the connected documents. Monitor for updates.

CVE-2026-31457 mm/damon/sysfs: check contexts->nr in repeat_call_fn

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 ...

CVE-2026-31445 mm/damon/core: avoid use of half-online-committed context

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: avoid use of half-online-committed context One major usage of damoncall is online DAMON parameters update. It is done by calling damoncommitctx inside the damoncall callback function. damoncommitctx can fail for tw...

CVE-2026-31445

In CVE-2026-31445, the Linux kernel vulnerability stems from damon_commit_ctx() potentially failing during online DAMON parameter updates, leaving the damon_ctx partially updated or corrupted. The fix adds damon_ctx->maybe_corrupted and makes kdamond_call() and related code check this flag aft...

CVE-2026-31445 mm/damon/core: avoid use of half-online-committed context

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: avoid use of half-online-committed context One major usage of damoncall is online DAMON parameters update. It is done by calling damoncommitctx inside the damoncall callback function. damoncommitctx can fail for tw...

kernel: Linux kernel: Local denial of service and memory leak in DAMON sysfs via setup failure

A flaw was found in the Linux kernel's Data Access MONitor DAMON sysfs interface. A local attacker, typically a privileged user, could exploit a cleanup bug during DAMON context setup. If the setup fails after the attrs directory is created, stale sysfs directories are left behind. This can lead ...

kernel: Linux kernel: Local denial of service and memory leak in DAMON sysfs via setup failure

A flaw was found in the Linux kernel's Data Access MONitor DAMON sysfs interface. A local attacker, typically a privileged user, could exploit a cleanup bug during DAMON context setup. If the setup fails after the attrs directory is created, stale sysfs directories are left behind. This can lead ...

PT-2026-34363

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Multiple sysfs command paths dereference contexts arr0 without verifying that kdamond-contexts-nr equals 1. A privileged user can set nr contexts to 0 via sysfs while DAMON is running,...

CVE-2026-31445: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: avoid use of half-online-committed context One major usage of damoncall is online DAMON parameters update. It is done by calling damoncommitctx inside the damoncall callback function. damoncommitctx can fail for tw...

PT-2026-34364

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory leak occurs in DAMON SYSFS during allocation failure. Specifically, when the function damon sysfs new test ctx fails within damon sysfs commit input, the param ctx variable is...

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 damonsysfscommitinput function. This function fails when damonsysfsnewtestctx does not proper...

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, where the damoncommitctx function may update the context due to memory allocation failures, potentially allowing...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013436)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013436 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases...

PT-2026-34362

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the Linux kernel when damon sysfs repeat call fn calls damon sysfs upd tuned intervals, damon sysfs upd schemes stats, and damon sysfs upd schemes...

PT-2026-34350

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Linux kernel where the damon commit ctx function can fail due to internal memory allocation failures. When this occurs, the damon ctx object may be partially updat...

CVE-2026-31458: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check 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 while DAMON is...

CVE-2026-31457: NULL Pointer Dereference

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 ...

CVE-2026-31459: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix paramctx leak on damonsysfsnewtestctx failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMONSYSFS can leak memory under allocation failure, and do NULL pointer dereferenc...

Linux Distros Unpatched Vulnerability : CVE-2026-31458

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 before accessing contextsarr0 Multiple sysfs command paths dereference contextsarr0 without first verifying that...