CVE-2026-45991

A flaw was found in the Linux kernel's Universal Disk Format UDF filesystem. A remote attacker could exploit this vulnerability by tricking a user into mounting a specially crafted UDF image containing repeated partition descriptors. This could lead to a heap out-of-bounds write, potentially...

EUVD-2026-32287

In the Linux kernel, the following vulnerability has been resolved: udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in partdescsloc. handlepartitiondescriptor deduplicates entries by partition...

CVE-2026-45991

In the Linux kernel, the following vulnerability has been resolved: udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in partdescsloc. handlepartitiondescriptor deduplicates entries by partition...

UBUNTU-CVE-2026-45991

In the Linux kernel, the following vulnerability has been resolved: udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in partdescsloc. handlepartitiondescriptor deduplicates entries by partition...

CVE-2026-45991

The CVE-2026-45991 entry concerns the Linux kernel UDF filesystem. The root cause is in handle_partition_descriptor() where partition descriptors are deduplicated by partition number, but appended slots do not record partnum, allowing repeated Partition Descriptors to accumulate and grow num_part...

CVE-2026-45991

In the Linux kernel, the following vulnerability has been resolved: udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in partdescsloc. handlepartitiondescriptor deduplicates entries by partition...

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 lack of recording the partition number when the udf partition descriptor is attached. This...

Linux Distros Unpatched Vulnerability : CVE-2026-45991

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - udf: fix partition descriptor append bookkeeping Mounting a crafted UDF image with repeated partition descriptors can trigger a heap out-of-bounds write in...

PT-2026-43858

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A heap out-of-bounds write can occur in the part descs loc table when mounting a crafted UDF image containing repeated partition descriptors. The handle partition descriptor function fai...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: udf: Fixed a slab-out-of-bounds write bug in udffindentry Syzbot reported a slab-out-of-bounds Write bug: loop0: A capacity change from 0 to 2048 was detected. ==================================================================...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: udf: Fixed NULL pointer dereferencing in the udfsymlink function. In the udfsymlink function, epos.bh is assigned the value returned by udftgetblk. The udftgetblk function is defined in udf/misc.c and returns the value of the...

Astra Linux – Vulnerability in Linux, Linux 5.10

A flaw involving a null pointer dereference was discovered in the Linux kernel’s UDF file system functionality. This flaw allows a malicious UDF image to trigger the udffilewriteiter function. A local user could exploit this flaw to crash the system. The flaw is present in the Linux kernel versio...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

In the Linux kernel, the following vulnerability has been resolved: udf: Do not bother merging very long extents. When merging very long extents, we try to assign as much length as possible to the first extent. However, this is unnecessarily complicated and not really worth the effort. Moreover,...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: udf: Avoid double calls to brelse in udfrename syzbot reported a warning like below 1: VFS: brelse: Trying to free a free buffer WARNING: CPU: 2 PID: 7301 at fs/buffer.c:1145 brelse+0x67/0xa0 … Call Trace:...

CLSA-2026-1778276927 kernel: Fix of 33 CVEs

rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present - xfrm: esp: avoid in-place decrypt on shared skb frags - ext4: avoid OOB when system.data xattr changes underneath the filesystem CVE-2024-47701 - gpiolib: cdev: fix uninitialised kfifo CVE-2024-36898 - wifi: mt76: Fix...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013624)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013624 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: Avoid double brelse in udfrename syzbot reported a warning like below 1: VFS: brelse: Trying...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013505)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013505 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: fix uninit-value use in udfgetfileshortad Check for overflow when computing alen in...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013796)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013796 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: Detect system inodes linked into directory hierarchy When UDF filesystem is corrupted, hidde...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011195)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011195 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: Do not bother merging very long extents When merging very long extents we try to push as muc...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-010794)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010794 advisory. In the Linux kernel, the following vulnerability has been resolved: udf: Avoid double brelse in udfrename syzbot reported a warning like below 1: VFS: brelse: Trying...