CVE-2026-97610

A flaw was found in the Linux kernel's netfs network filesystem subsystem. A local user can cause a Denial of Service DoS or unexpected system behavior during synchronous unbuffered write operations on network filesystems, such as CIFS Common Internet File System. When an initial write preparatio...

CVE-2026-98120

A flaw was found in the Linux kernel's netfs network filesystem subsystem. A local user can cause a Denial of Service DoS by initiating specific unbuffered write operations on an affected filesystem. When a write subrequest encounters zero-length data during preparation, the kernel fails to relea...

DEBIAN-CVE-2026-98119

In the Linux kernel, the following vulnerability has been resolved: netfs: break unbuffered write when netfsallocsubrequest fails syzbot reported a null-ptr-deref below 1 following a fault injection in netfsallocsubrequest. 0 When netfsallocsubrequest fails, subreq is NULL. Later, netfspreparewri...

CVE-2026-98119 netfs: break unbuffered write when netfs_alloc_subrequest() fails

In the Linux kernel, the following vulnerability has been resolved: netfs: break unbuffered write when netfsallocsubrequest fails syzbot reported a null-ptr-deref below 1 following a fault injection in netfsallocsubrequest. 0 When netfsallocsubrequest fails, subreq is NULL. Later, netfspreparewri...

CVE-2026-98119

A null-pointer dereference vulnerability exists in the Linux kernel 's netfs component. When netfs_alloc_subrequest() fails during an unbuffered write, it returns a NULL subrequest. The system subsequently attempts to initialize members of this NULL pointer within netfs_prepare_write() , leading ...

CVE-2026-98119

In the Linux kernel, the following vulnerability has been resolved: netfs: break unbuffered write when netfsallocsubrequest fails syzbot reported a null-ptr-deref below 1 following a fault injection in netfsallocsubrequest. 0 When netfsallocsubrequest fails, subreq is NULL. Later, netfspreparewri...

PT-2026-98550

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix uninitialized return value in netfs unbuffered write If preparation of the first subrequest fails, netfs unbuffered write exits its loop before ret is initialized. The empty-iterator check can do the same. For...

SUSE CVE-2026-31437

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfsunbufferedwrite on retry When a write subrequest is marked NETFSSREQNEEDRETRY, the retry path in netfsunbufferedwrite unconditionally calls stream-preparewrite without checking if it is...

CVE-2026-31437

A flaw was found in the Linux kernel's netfs component. When a write operation is retried, the netfsunbufferedwrite function can attempt to access a non-existent function, leading to a NULL pointer dereference. This vulnerability can be triggered by specific filesystem configurations, such as 9P,...

EUVD-2026-24762

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfsunbufferedwrite on retry When a write subrequest is marked NETFSSREQNEEDRETRY, the retry path in netfsunbufferedwrite unconditionally calls stream-preparewrite without checking if it is...

CVE-2026-31437

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfsunbufferedwrite on retry When a write subrequest is marked NETFSSREQNEEDRETRY, the retry path in netfsunbufferedwrite unconditionally calls stream-preparewrite without checking if it is...

CVE-2026-31437

The CVE-2026-31437 issue is in the Linux kernel netfs path: when a write subrequest is marked NETFS_SREQ_NEED_RETRY, netfs_unbuffered_write() could dereference stream->prepare_write if it is NULL (not all filesystems, e.g., 9P, set prepare_write). The fixed behavior mirrors write_retry.c: if s...

CVE-2026-31437 netfs: Fix NULL pointer dereference in netfs_unbuffered_write() on retry

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix NULL pointer dereference in netfsunbufferedwrite on retry When a write subrequest is marked NETFSSREQNEEDRETRY, the retry path in netfsunbufferedwrite unconditionally calls stream-preparewrite without checking if it is...

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 a null pointer dereferencing in the netfsunbufferedwrite retry path. This could lead to a failure...

PT-2026-34342

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the netfs unbuffered write function during a retry operation. When a write subrequest is marked NETFS SREQ NEED RETRY, the system calls stream-prepar...

The vulnerability of the `netfs_unbuffered_write_iter_locked()` function in the `fs/netfs/direct_write.c` module, which is part of the Linux kernel’s network file system support, allows a hacker to cause a service failure.

The vulnerability of the netfsunbufferedwriteiterlocked function in the fs/netfs/directwrite.c module, which is part of the Linux kernel’s network file system support, involves copying buffers without checking the size of the input data a classic buffer overflow attack. Exploiting this...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix for unbuffered write error handling If all the subrequests in an unbuffered write stream fail, the subrequest collector does not update the stream-transferred value, and it retains its initial LONGMAX value...

Linux Distros Unpatched Vulnerability : CVE-2025-39723

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - netfs: Fix unbuffered write error handling If all the subrequests in an unbuffered write stream fail, the subrequest collector doesn't update the...

SUSE CVE-2025-39723

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix unbuffered write error handling If all the subrequests in an unbuffered write stream fail, the subrequest collector doesn't update the stream-transferred value and it retains its initial LONGMAX value. Unfortunately, i...

DEBIAN-CVE-2025-39723

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix unbuffered write error handling If all the subrequests in an unbuffered write stream fail, the subrequest collector doesn't update the stream-transferred value and it retains its initial LONGMAX value. Unfortunately, i...