CVE-2026-31446 ext4: fix use-after-free in update_super_work when racing with umount

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in updatesuperwork when racing with umount Commit b98535d09179 "ext4: fix bugon in startthishandle during umount filesystem" moved ext4unregistersysfs before flushing ssbupdwork to prevent new error work...

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-2026-31446 ext4: fix use-after-free in update_super_work when racing with umount

In the Linux kernel, the following vulnerability has been resolved: ext4: fix use-after-free in updatesuperwork when racing with umount Commit b98535d09179 "ext4: fix bugon in startthishandle during umount filesystem" moved ext4unregistersysfs before flushing ssbupdwork to prevent new error work...

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...

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...

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...

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...

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...

CVE-2026-31434: Missing Release of Memory after Effective Lifetime

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'...

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-2026-011123)

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 20.1070a 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 20.1050e / 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 20.1070e 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 20.1050a 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 20.1050e / 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-2026-007281)

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...