CVE-2026-53320

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject zero bdoblocknr in nilfsioctlmarkblocksdirty nilfsioctlmarkblocksdirty uses bdoblocknr to detect dead blocks by comparing it with the current block number bdblocknr. If they differ, the block is considered dead and...

CVE-2026-53320

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject zero bdoblocknr in nilfsioctlmarkblocksdirty nilfsioctlmarkblocksdirty uses bdoblocknr to detect dead blocks by comparing it with the current block number bdblocknr. If they differ, the block is considered dead and...

CVE-2026-53320 nilfs2: reject zero bd_oblocknr in nilfs_ioctl_mark_blocks_dirty()

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject zero bdoblocknr in nilfsioctlmarkblocksdirty nilfsioctlmarkblocksdirty uses bdoblocknr to detect dead blocks by comparing it with the current block number bdblocknr. If they differ, the block is considered dead and...

CVE-2026-53320

Technical details of CVE-2026-53320 are not publicly provided in the supplied documents; no vendor/product/patch information is confirmed here. Monitor for updates.

CVE-2026-53320: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nilfs2: reject zero bdoblocknr in nilfsioctlmarkblocksdirty nilfsioctlmarkblocksdirty uses bdoblocknr to detect dead blocks by comparing it with the current block number bdblocknr. If they differ, the block is considered dead and...

PT-2026-52959

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nilfs2 file system where the nilfs ioctl mark blocks dirty function fails to validate the bd oblocknr variable. The function uses bd oblocknr to identify dead bloc...

CVE-2026-55392

A flaw was found in NILFS utilities. An attacker can exploit this vulnerability by supplying a crafted NILFS2 image. This can lead to undefined behavior, oversized shifts, or out-of-memory conditions, ultimately causing a Denial of Service DoS by crashing tools such as nilfs-tune and dumpseg...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: blk-mq: use quiesced elevator switch when reinitializing queues CVE-2022-50552 In the Linux kernel, the following vulnerability has been resolved: net: clear the dst when changing skb protocol CVE-2025-38192 In th...

CVE-2026-55392 NILFS utilities - Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size

NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfssbisvalid function fails to validate slogblocksize field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashi...

CVE-2026-55392: Improper Validation of Specified Quantity in Input

NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfssbisvalid function fails to validate slogblocksize field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashi...

nilfs2: fix NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map

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Unity Linux 20.1060a Security Update: kernel (UTSA-2026-014340)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-014340 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: prevent use of deleted inode syzbot reported a WARNING in nilfsrmdir. 1 Because the inode...

Linux Distros Unpatched Vulnerability : CVE-2026-31577

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations...

CVE-2026-31577

A flaw was found in the nilfs2 filesystem within the Linux kernel. A local user can trigger a null pointer dereference by calling the NILFSIOCTLCLEANSEGMENTS operation immediately after mounting the filesystem, but before any btree operations have occurred on the Data Allocation Table DAT inode...

AZL-83723 CVE-2026-31577 affecting package kernel for versions less than 6.6.137.1-1

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...

CVE-2026-31577

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...

CVE-2026-31577

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...

CVE-2026-31577 nilfs2: fix NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...

CVE-2026-31577

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...

CVE-2026-31577 nilfs2: fix NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix NULL iassocinode dereference in nilfsmdtsavetoshadowmap The DAT inode's btree node cache iassocinode is initialized lazily during btree operations. However, nilfsmdtsavetoshadowmap assumes iassocinode is already...