CVE-2026-31465

CVE-2026-31465 in the Linux kernel concerns the writeback path for filesystems without data integrity guarantees (e.g., fuse). The fix adds a SB_I_NO_DATA_INTEGRITY superblock flag; when set, sync kicks off writeback of dirty inodes but does not wait for flusher threads to finish. The change move...

CVE-2026-31465 writeback: don't block sync for filesystems with no data integrity guarantees

In the Linux kernel, the following vulnerability has been resolved: writeback: don't block sync for filesystems with no data integrity guarantees Add a SBINODATAINTEGRITY superblock flag for filesystems that cannot guarantee data persistence on sync eg fuse. For superblocks with this flag set, sy...

PT-2026-34370

In the Linux kernel, the following vulnerability has been resolved: writeback: don't block sync for filesystems with no data integrity guarantees Add a SB I NO DATA INTEGRITY superblock flag for filesystems that cannot guarantee data persistence on sync eg fuse. For superblocks with this flag set...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-006910)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006910 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix shift-out-of-bounds/overflow in nilfssb2badoffset Patch series nilfs2: fix UBSAN...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-007472)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-007472 advisory. In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nswriter on remount If a nilfs2 filesystem is downgraded to...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006593)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006593 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUGON in ext4mbreleasegrouppa If a malicious fuzzer overwrites the ext4 superblock...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-006574)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006574 advisory. In the Linux kernel, the following vulnerability has been resolved: ext2: Check block size validity during mount Check that log of block size stored in the superbloc...

CVE-2026-23234

CVE-2026-23234 affects the Linux kernel F2FS subsystem. A use-after-free can occur in f2fs_write_end_io() due to a race with kill_f2fs_super freeing sbi before writeback complete, allowing access to freed sbi during page cache/inode cleanup. The published fix relocates the checkpoint thread wakeu...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005623)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005623 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: remove a BUGON in ext4mbreleasegrouppa If a malicious fuzzer overwrites the ext4 superblock...

hfs: ensure sb->s_fs_info is always cleaned up

...

UBUNTU-CVE-2025-71230

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

CVE-2025-71230

CVE-2025-71230 in Linux kernel concerns a leak of filesystem-specific data (sb->s_fs_info) when using the new mount API for hfs. The root cause is that if setup_bdev_super() fails after a new superblock is allocated by sget_fc() but before hfs_fill_super() takes ownership, sb->s_fs_info cou...

CVE-2025-71230 hfs: ensure sb->s_fs_info is always cleaned up

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

CVE-2025-71230

In the Linux kernel, the following vulnerability has been resolved: hfs: ensure sb-sfsinfo is always cleaned up When hfs was converted to the new mount api a bug was introduced by changing the allocation pattern of sb-sfsinfo. If setupbdevsuper fails after a new superblock has been allocated by...

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 unsynchronized reading of the superblock of the disk and incorrect setting of block size,...

CVE-2025-71105

In the Linux kernel, the following vulnerability has been resolved: f2fs: use global inlinexattrslab instead of per-sb slab cache As Hong Yun reported in mailing list: loop7: detected capacity change from 0 to 131072 ------------ cut here ------------ kmemcache of name 'f2fsxattrentry-7:7' alread...

CVE-2025-71105

CVE-2025-71105 documents a Linux kernel issue in f2fs where two slab caches (f2fs_xattr_entry-7:3 and f2fs_xattr_entry-7:7) with identical slab sizes cause kmem_cache_sanity_check warnings during mount operations. The root cause is using per-sb slab caches instead of a single global slab, leading...

CVE-2025-71105 f2fs: use global inline_xattr_slab instead of per-sb slab cache

In the Linux kernel, the following vulnerability has been resolved: f2fs: use global inlinexattrslab instead of per-sb slab cache As Hong Yun reported in mailing list: loop7: detected capacity change from 0 to 131072 ------------ cut here ------------ kmemcache of name 'f2fsxattrentry-7:7' alread...

CVE-2025-71105

In the Linux kernel, the following vulnerability has been resolved: f2fs: use global inlinexattrslab instead of per-sb slab cache As Hong Yun reported in mailing list: loop7: detected capacity change from 0 to 131072 ------------ cut here ------------ kmemcache of name 'f2fsxattrentry-7:7' alread...

CVE-2025-71105 f2fs: use global inline_xattr_slab instead of per-sb slab cache

In the Linux kernel, the following vulnerability has been resolved: f2fs: use global inlinexattrslab instead of per-sb slab cache As Hong Yun reported in mailing list: loop7: detected capacity change from 0 to 131072 ------------ cut here ------------ kmemcache of name 'f2fsxattrentry-7:7' alread...