CVE-2026-31446

CVE-2026-31446 is a Linux kernel/ext4 vulnerability describing a use-after-free in update_super_work during unmount races. The root cause: update_super_work calls ext4_notify_error_sysfs() -> sysfs_notify() after ext4_unregister_sysfs() frees the kobject, leading to a stale kernfs_node access....

CVE-2026-31434

CVE-2026-31434 affects the Linux kernel's btrfs subsystem. The root cause is a leak of kobject names for sub-group space_info entries: during removal, kobject_init_and_add is paired with allocations, but the corresponding btrfs_sysfs_remove_space_info() is not called on freed elements, causing le...

CVE-2026-31434 btrfs: fix leak of kobject name for sub-group space_info

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix leak of kobject name for sub-group spaceinfo When createspaceinfosubgroup allocates elements of spaceinfo-subgroup, kobjectinitandadd is called for each element via btrfssysfsaddspaceinfotype. However, when...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013798)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013798 advisory. In the Linux kernel, the following vulnerability has been resolved: class: fix possible memory leak in classregister If classaddgroups returns error, the 'cp-subsys'...

Linux Distros Unpatched Vulnerability : CVE-2026-31434

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - btrfs: fix leak of kobject name for sub-group spaceinfo When createspaceinfosubgroup allocates elements of spaceinfo-subgroup, kobjectinitandadd is called for...

PT-2026-34351

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the ext4 file system during the unmount process. The problem occurs when update super work races with umount, specifically when ext4 notify error sysfs...

PT-2026-34339

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix leak of kobject name for sub-group space info When create space info sub group allocates elements of space info-sub group, kobject init and add is called for each element via btrfs sysfs add space info type. However,...

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 exposure of the kobject name in the btrfs subgroup spaceinfo, potentially leading to memory...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013096)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013096 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: check kobject stateinsysfs before deleting in blkmqunregisterhctx In blkmqupdatenrhwqueue...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-007014)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007014 advisory. In the Linux kernel, the following vulnerability has been resolved: cpufreq: Init completion before kobjectinitandadd In cpufreqpolicyalloc, it will call uninitialed...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-012988)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-012988 advisory. In the Linux kernel, the following vulnerability has been resolved: fs: sysfs: Fix reference leak in sysfsbreakactiveprotection The sysfsbreakactiveprotection routin...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013223)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013223 advisory. In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: fix possible memory leak in ibmebusbusinit If deviceregister returns error in...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011306)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011306 advisory. In the Linux kernel, the following vulnerability has been resolved: blk-mq: check kobject stateinsysfs before deleting in blkmqunregisterhctx In blkmqupdatenrhwqueue...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011123)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011123 advisory. In the Linux kernel, the following vulnerability has been resolved: class: fix possible memory leak in classregister If classaddgroups returns error, the 'cp-subsys'...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-007024)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007024 advisory. In the Linux kernel, the following vulnerability has been resolved: kobject: Add sanity check for kset-kobj.ktype in ksetregister When I register a kset in the...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011262)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011262 advisory. In the Linux kernel, the following vulnerability has been resolved: cpufreq: Init completion before kobjectinitandadd In cpufreqpolicyalloc, it will call uninitialed...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007371)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007371 advisory. In the Linux kernel, the following vulnerability has been resolved: net: netsec: fix error handling in netsecregistermdio If phydeviceregister fails, phydevicefree...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007491)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007491 advisory. In the Linux kernel, the following vulnerability has been resolved: class: fix possible memory leak in classregister If classaddgroups returns error, the 'cp-subsys'...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007281)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007281 advisory. In the Linux kernel, the following vulnerability has been resolved: fs: sysfs: Fix reference leak in sysfsbreakactiveprotection The sysfsbreakactiveprotection routin...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005779)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005779 advisory. In the Linux kernel, the following vulnerability has been resolved: macintosh: fix possible memory leak in macioaddonedevice Afer commit 1fa5ae857bb1 driver core: ge...