UBUNTU-CVE-2025-40119

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

CVE-2025-40167 ext4: detect invalid INLINE_DATA + EXTENTS flag combination

In the Linux kernel, the following vulnerability has been resolved: ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in ext4escacheextent when opening a verity file on a corrupted ext4 filesystem mounted without a journal. The issue is that the filesystem has an...

CVE-2025-40167

An issued CVE (CVE-2025-40167) affects the Linux kernel ext4 implementation where an inode incorrectly has both INLINE_DATA and EXTENTS flags set. Connected sources describe the root cause: the combination causes ext4_has_inline_data() to return true, causing the extent-tree validation to be skip...

CVE-2025-40167 ext4: detect invalid INLINE_DATA + EXTENTS flag combination

In the Linux kernel, the following vulnerability has been resolved: ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in ext4escacheextent when opening a verity file on a corrupted ext4 filesystem mounted without a journal. The issue is that the filesystem has an...

CVE-2025-40167

In the Linux kernel, the following vulnerability has been resolved: ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in ext4escacheextent when opening a verity file on a corrupted ext4 filesystem mounted without a journal. The issue is that the filesystem has an...

CVE-2025-40119

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

CVE-2025-40119 ext4: fix potential null deref in ext4_mb_init()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

CVE-2025-40119

CVE-2025-40119 affects the Linux kernel ext4 subsystem. The root cause is a potential null dereference in ext4_mb_init() where ext4_mb_avg_fragment_size_destroy() could be invoked with sbi->s_mb_avg_fragment_size uninitialized (e.g., groupinfo slab cache allocation failure), due to missing nul...

CVE-2025-40119 ext4: fix potential null deref in ext4_mb_init()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-990743)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990743 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix another off-by-one fsmap error on 1k block filesystems Apparently syzbot figured out...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990771)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990771 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix BUGON when directory entry has invalid reclen The reclen field in the directory entry h...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990845)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990845 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix idatasem unlock order in ext4indmigrate Fuzzing reports a possible deadlock in...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990873)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990873 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: avoid use-after-free in ext4extshowleaf In ext4findextent, path may be freed by error or be...

CVE-2025-40190: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: guard against EA inode refcount underflow in xattr update syzkaller found a path where ext4xattrinodeupdateref reads an EA inode refcount that is already = 0 and then applies refchange often -1. That lets the refcount...

CVE-2025-40179: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: verify orphan file size is not too big In principle orphan file can be arbitrarily large. However orphan replay needs to traverse it all and we also pin all its buffers in memory. Thus filesystems with absurdly large orphan...

CVE-2025-40167: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in ext4escacheextent when opening a verity file on a corrupted ext4 filesystem mounted without a journal. The issue is that the filesystem has an...

CVE-2025-40124: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: sparc: fix accurate exception reporting in copyfromtouser for UltraSPARC III Anthony Yznaga tracked down that a BUGON in ext4 code with large folios enabled resulted from copyfromuser returning impossibly large values greater tha...

CVE-2025-40119: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential null deref in ext4mbinit In ext4mbinit, ext4mbavgfragmentsizedestroy may be called when sbi-smbavgfragmentsize remains uninitialized e.g., if groupinfo slab cache allocation fails. Since...

Linux Distros Unpatched Vulnerability : CVE-2025-40167

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ext4: detect invalid INLINEDATA + EXTENTS flag combination syzbot reported a BUGON in ext4escacheextent when opening a verity file on a corrupted ext4 filesyste...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-990814)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990814 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix WARNING in ext4updateinlinedata Syzbot found the following issue: EXT4-fs loop0: mount...