CVE-2026-31458 mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0]

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-2026-31458

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

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 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...

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 ...

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...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the damonsysfsrepeatcallfn function not checking contexts-nr, potentially leading to null pointer...

PT-2026-34364

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix param ctx leak on damon sysfs new test ctx failure Patch series "mm/damon/sysfs: fix memory leak and NULL dereference issues", v4. DAMON SYSFS can leak memory under allocation failure, and do NULL pointer...

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,...

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...

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...

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...

PT-2026-34362

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check contexts-nr in repeat call fn damon sysfs repeat call fn calls damon sysfs upd tuned intervals, damon sysfs upd schemes stats, and damon sysfs upd schemes effective quotas without checking contexts-nr. If nr...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013432)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013432 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates...

PT-2026-34350

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

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010707)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010707 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: fix 'struct pid' leaks in 'dbgfstargetidswrite' DAMON debugfs interface increases...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010686)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010686 advisory. In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamondlock DAMON debugfs interface iterates...

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 ...