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...

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

CVE-2026-31577 affects the Linux kernel nilfs2 filesystem. The vulnerability is a NULL i_assoc_inode dereference in nilfs_mdt_save_to_shadow_map during GC if NILFS_IOCTL_CLEAN_SEGMENTS is invoked immediately after mount, before any btree operation on the DAT inode. The root cause is i_assoc_inode...

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...

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 null pointer dereferencing in iassoc inode in nilfs2, potentially leading to general protecti...

PT-2026-34929

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the nilfs2 component within the nilfs mdt save to shadow map function. The btree node cache i assoc inode of the DAT inode is initialized lazily duri...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013620)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013620 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds due to too large exponent of block size If field slogblocksize of...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011083)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011083 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel-infoleak in nilfsioctlwrapcopy The ioctl helper function nilfsioctlwrapcopy,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-012971)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-012971 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix OOB in nilfssetdetype The size of the nilfstypebymode array in the fs/nilfs2/dir.c fi...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011393)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011393 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfsroot in nilfsevictinode During unmount process of nilfs2,...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013042)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013042 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfsroot in nilfsevictinode During unmount process of nilfs2,...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013231)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013231 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfsroot in nilfsevictinode During unmount process of nilfs2,...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-011202)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011202 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: replace WARNONs by nilfserror for checkpoint acquisition failure If creation or...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010850)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010850 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not write dirty data after degenerating to read-only According to syzbot's report,...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-010859)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-010859 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix infinite loop in nilfsmdtgetblock If the disk image that nilfs2 mounts is corrupted a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-013164)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013164 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix WARNING in markbufferdirty due to discarded buffer reuse A syzbot stress test using a...

Unity Linux 20.1050e / 20.1060e Security Update: kernel (UTSA-2026-013405)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013405 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel bug on rename operation of broken directory Syzbot reported that in rename...