CVE-2026-89720 ubifs: fix out-of-bounds read in signature length check

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

EUVD-2026-76632

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

CVE-2026-89720

CVE-2026-89720 is an out-of-bounds read in the Linux kernel's UBIFS (Unsorted Block Image File System) subsystem. The function ubifs_sb_verify_signature() uses an incorrect bounds check (adds instead of subtracts the 64-byte header size), allowing a crafted signed UBIFS image to declare a signatu...

CVE-2026-89720

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

CVE-2026-89720: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifssbverifysignature bounds the on-disk ubifssignode-len field before handing the signature payload to verifypkcs7signature, but the check has the wrong sign: if...

PT-2026-96336

In the Linux kernel, the following vulnerability has been resolved: ubifs: fix out-of-bounds read in signature length check ubifs sb verify signature bounds the on-disk ubifs sig node-len field before handing the signature payload to verify pkcs7 signature, but the check has the wrong sign: if le...

PT-2026-90436

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds read exists in the UBIFS filesystem due to an incorrect sign in the signature length check within the ubifs sb verify signature function. The function incorrectly adds t...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001399)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001399 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: authentication: Fix use-after-free in ubifstncendcommit After an insertion in TNC, the tre...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-001437)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-001437 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: Set page uptodate in the correct place Page cache reads are lockless, so setting the fresh...

ROS-20260630-73-0025

The vulnerability of the ubifstmpfile function in the fs/ubifs/dir.c file of the Linux kernel’s file system is related to the distribution of resources without any restrictions or regulations. Exploiting this vulnerability could allow a attacker to cause a service failure...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ubifs: A memory leak was fixed in ubifssysfsinit. When using insmod ubifs.ko, a kmemleak was reported as follows: Unreferenced object: 0xffff88817fb1a780 size 8 Source: comm "insmod", pid 25265, jiffies 4295239702 age 100.130s He...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013823)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013823 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifsreleasepage: Remove ubifsassert0 to valid this process There are two states for ubifs...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011112)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011112 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: Free memory for tmpfile name When opening a ubifs tmpfile on an encrypted directory,...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010925)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010925 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memory leak in allocwbufs kmemleak reported a sequence of memory leaks, and show them ...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013159)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013159 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: Fix memleak when insertoldidx failed Following process will cause a memleak for copied up...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011124)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011124 advisory. In the Linux kernel, the following vulnerability has been resolved: ubifs: ubifsreleasepage: Remove ubifsassert0 to valid this process There are two states for ubifs...

Linux Distros Unpatched Vulnerability : CVE-2026-23434

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mtd: rawnand: serialize lock/unlock against other NAND operations nandlock and nandunlock call into chip-ops.lockarea/unlockarea without holding the NAND device...

CVE-2026-23434 mtd: rawnand: serialize lock/unlock against other NAND operations

In the Linux kernel, the following vulnerability has been resolved: mtd: rawnand: serialize lock/unlock against other NAND operations nandlock and nandunlock call into chip-ops.lockarea/unlockarea without holding the NAND device lock. On controllers that implement SETFEATURES via multiple low-lev...

Linux kernel Heap Buffer Overflow DoS

The vulnerability of the ubifstmpfile function in the fs/ubifs/dir.c file of the Linux kernel’s file system is related to the distribution of resources without any restrictions or regulations. Exploiting this vulnerability could allow a attacker to cause a service failure...

Linux kernel alloc_wbufs Heap Buffer Overflow DoS

The vulnerability of the allocwbufs function in the fs/ubifs/super.c file of the Linux kernel operating system is related to improper memory release. Exploiting this vulnerability could allow an attacker to cause a service failure...