CVE-2025-40190

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 ref underflow: refcount=-1 refchange=-1 EXT4-fs warning: eainode dec...

CVE-2025-40198

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid potential buffer over-read in parseapplysbmountoptions Unlike other strings in the ext4 superblock, we rely on tune2fs to make sure smountopts is NUL terminated. Harden parseapplysbmountoptions by treating smountopts ...

CVE-2025-40196

CVE-2025-40196 concerns the Linux kernel quota subsystem. A writeback-triggered flush could trigger a kernel panic due to MEM_RECLAIM flag mismatch when quota_release_work runs on the non MEM_RECLAIM queue. The patch adds a dedicated workqueue with the WQ_MEM_RECLAIM flag for quota_release_work t...

CVE-2025-40190

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 ref underflow: refcount=-1 refchange=-1 EXT4-fs warning: eainode dec...

CVE-2025-40190

CVE-2025-40190 affects the Linux kernel ext4: EA inode refcount underflow during xattr updates. The root cause is in ext4_xattr_inode_update_ref(), where a non-positive refcount could be decremented (ref_change -1), leading to underflow and errors. The fix enforces that if the current refcount is...

USN-7835-6 linux-aws-6.8 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Ublk userspace block driver; -...

USN-7835-6: Linux kernel (AWS) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - PowerPC architecture; - x86 architecture; - ACPI drivers; - Ublk userspace block driver; -...

AZL-69992 CVE-2025-40167 affecting package kernel for versions less than 6.6.117.1-1

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-2025-40125

In the Linux kernel, the following vulnerability has been resolved: blk-mq: check kobject stateinsysfs before deleting in blkmqunregisterhctx In blkmqupdatenrhwqueues the return value of blkmqsysfsregisterhctxs is not checked. If sysfs creation for hctx fails, later changing the number of hwqueue...

UBUNTU-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-2025-40167 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 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 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-2025-40150

The CVE-2025-40150 entries describe a Linux kernel F2FS issue where a race between fallocate on a pinning file and block allocation can migrate a just-allocated segment, causing mismatch between in-memory SIT and on-disk SSA (example segno 173822). The root cause is a race in garbage collection t...

CVE-2025-40138 f2fs: fix to avoid NULL pointer dereference in f2fs_check_quota_consistency()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fscheckquotaconsistency syzbot reported a f2fs bug as below: Oops: gen 107.736417 T5848 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 ...

CVE-2025-40124 sparc: fix accurate exception reporting in copy_{from_to}_user for UltraSPARC III

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...

PT-2025-46603

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc4-custom+ 283 Description The Linux kernel contains a flaw related to handling symbolic links when the block size is larger than the page size bs ps within the Btrfs filesystem. Specifically, the issue...

CVE-2025-40150: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs dm-64: Stopped filesystem due to reason: 4 Thread A Thread B -...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990849)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990849 advisory. In the Linux kernel, the following vulnerability has been resolved: iouring/rw: fix missing NOWAIT check for ODIRECT start write When iouring starts a write, it'll...

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...