PT-2025-22166 · Linux · Linux Kernel

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to the fixed version Description: A bug in the Linux kernel has been identified, which can lead to a busy inode at unmount time, resulting in a kernel BUG. This issue occurs when btrfs alloc path fails, and btrfs...

kernel security update

4.18.0-553.52.110.OL8 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and...

kernel: fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

kernel: sysctl: always initialize i_uid/i_gid

In the Linux kernel, the following vulnerability has been resolved: sysctl: always initialize iuid/igid Always initialize iuid/igid inside the sysfs core so setownership can safely skip setting them. Commit 5ec27ec735ba "fs/proc/procsysctl.c: fix the default values of iuid/igid on /proc/sys...

kernel: ext4: dax: fix overflowing extents beyond inode size when partially writing

An inode corruption flaw was found in the Linux kernel's Ext4 file system functionality related to how a user can interrupt a write using the daxiomaprwfunction. This flaw allows a local user to make non-fatal mistakes with Ext4, leading to a file system denial of service...

kernel: fsnotify: clear PARENT_WATCHED flags lazily

In the Linux kernel, the following vulnerability has been resolved: fsnotify: clear PARENTWATCHED flags lazily In some setups directories can have many usually negative dentries. Hence fsnotifyupdatechilddentryflags function can take a significant amount of time. Since the bulk of this function...

kernel: Linux kernel OverlayFS: Kernel crash via null pointer dereference in ovl_get_acl_rcu()

A flaw was found in the OverlayFS ovl component of the Linux kernel. A local user can trigger a null pointer dereference by performing a specific sequence of file system operations. This vulnerability occurs when the ovlgetaclrcu function attempts to access a real inode that has been set to NULL...

SUSE CVE-2022-49890

In the Linux kernel, the following vulnerability has been resolved: capabilities: fix potential memleak on error path from vfsgetxattralloc In capinodegetsecurity, we will use vfsgetxattralloc to complete the memory allocation of tmpbuf, if we have completed the memory allocation of tmpbuf, but...

SUSE CVE-2022-49913

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix inode list leak during backref walking at findparentnodes During backref walking, at findparentnodes, if we are dealing with a data extent and we get an error while resolving the indirect backrefs, at...

SUSE CVE-2025-37806

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Keep write operations atomic syzbot reported a NULL pointer dereference in genericfilewriteiter. 1 Before the write operation is completed, the user executes ioctl2 to clear the compress flag of the file, which causes t...

DEBIAN-CVE-2025-37806

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Keep write operations atomic syzbot reported a NULL pointer dereference in genericfilewriteiter. 1 Before the write operation is completed, the user executes ioctl2 to clear the compress flag of the file, which causes t...

UBUNTU-CVE-2025-37806

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Keep write operations atomic syzbot reported a NULL pointer dereference in genericfilewriteiter. 1 Before the write operation is completed, the user executes ioctl2 to clear the compress flag of the file, which causes t...

CVE-2025-37806

CVE-2025-37806 affects Linux kernel fs/ntfs3 write path. A NULL pointer dereference can occur in __generic_file_write_iter when an ioctl clears the file’s compress flag during a write, causing is_compressed() to return 0 and the code to call the wrong AOP, leading to a null dereference in write_b...

CVE-2025-37806 fs/ntfs3: Keep write operations atomic

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Keep write operations atomic syzbot reported a NULL pointer dereference in genericfilewriteiter. 1 Before the write operation is completed, the user executes ioctl2 to clear the compress flag of the file, which causes t...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a null pointer dereference due to unused inode lock synchronization ioctl and write operations...

SUSE CVE-2022-49914

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix inode list leak during backref walking at resolveindirectrefs During backref walking, at resolveindirectrefs, if we get an error we jump to the 'out' label and call ulistfree on the 'parents' ulist, which frees all the...

CLSA-2025-1746479711 kernel-uek: Fix of 218 CVEs

sctp: sysctl: authenable: avoid using current-nsproxy - sctp: sysctl: cookiehmacalg: avoid using current-nsproxy CVE-2025-21640 - bpf: Use preemptcount directly in bpfsendsignalcommon - Revert "sctp: sysctl: cookiehmacalg: avoid using current-nsproxy" - jfs: fix slab-out-of-bounds read in eaget -...

CVE-2023-53101

In the Linux kernel, the following vulnerability has been resolved: ext4: zero idisksize when initializing the bootloader inode If the boot loader inode has never been used before, the EXT4IOCSWAPBOOT inode will initialize it, including setting the isize to 0. However, if the "never before used"...

SUSE CVE-2023-53089

In the Linux kernel, the following vulnerability has been resolved: ext4: fix task hung in ext4xattrdeleteinode Syzbot reported a hung task problem: ================================================================== INFO: task syz-executor232:5073 blocked for more than 143 seconds. Not tainted...

SUSE CVE-2023-53091

In the Linux kernel, the following vulnerability has been resolved: ext4: update sjournalinum if it changes after journal replay When mounting a crafted ext4 image, sjournalinum may change after journal replay, which is obviously unreasonable because we have successfully loaded and replayed the...