FreeBSD Security Advisory - FreeBSD-SA-26:13.exec

FreeBSD Security Advisory - An operator precedence bug in the kernel results in a scenario where a buffer overflow causes attacker-controlled data to overwrite adjacent execve2 argument buffers...

PT-2026-35872

Name of the Vulnerable Software and Affected Versions xen affected versions not specified Description Security issues were identified and addressed in the xen-4.21.1 04-1.1 package on the GA media of openSUSE Tumbleweed. Recommendations Update to the xen-4.21.1 04-1.1 package...

CVE-2026-31635

A flaw was found in the Linux kernel's rxrpc component. An inverted length check in the rxgkverifyresponse function allows oversized RESPONSE authenticators to be accepted. This can lead to an impossible length being passed to skbtosgvec, triggering a BUGON condition and resulting in a system...

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 the ocfs2 file system’s ocfs2groupextend function. This function assumes that the global bitmap f...

CVE-2026-31438

A flaw was found in the Linux kernel's netfs component. When a process crashes and the kernel attempts to write a core dump to a 9P filesystem, the netfslimititer function does not properly handle ITERKVEC iterators. This oversight can lead to a kernel BUG, resulting in a system crash and a Denia...

EUVD-2026-24764

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates an ITERKVEC iterator. This iterator reaches netfslimititer via...

CVE-2026-31438

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates an ITERKVEC iterator. This iterator reaches netfslimititer via...

CVE-2026-31452 ext4: convert inline data to extents when truncate exceeds inline size

In the Linux kernel, the following vulnerability has been resolved: ext4: convert inline data to extents when truncate exceeds inline size Add a check in ext4setattr to convert files from inline data storage to extent-based storage when truncate grows the file size beyond the inline capacity. Thi...

CVE-2026-31452

CVE-2026-31452 affects the Linux kernel ext4 filesystem. Connected sources confirm a concrete vulnerability in inline data storage: when truncate() increases a file beyond the inline capacity, ext4 currently risks the inode inline flag and the file size becoming inconsistent. The fix introduces a...

CVE-2026-31438 netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates an ITERKVEC iterator. This iterator reaches netfslimititer via...

CVE-2026-31438 netfs: Fix kernel BUG in netfs_limit_iter() for ITER_KVEC iterators

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix kernel BUG in netfslimititer for ITERKVEC iterators When a process crashes and the kernel writes a core dump to a 9P filesystem, kernelwrite creates an ITERKVEC iterator. This iterator reaches netfslimititer via...

CVE-2026-31438

CVE-2026-31438 affects the Linux kernel netfs code. A BUG occurs in netfs_limit_iter() when processing ITER_KVEC iterators (e.g., during core-dump to 9P), because ITER_KVEC is not dispatched like other supported types. The fix adds netfs_limit_kvec() (paralleling netfs_limit_bvec()) and dispatche...

CVE-2026-6386

In order to apply a particular protection key to an address range, the kernel must update the corresponding page table entries. The subroutine which handled this failed to take into account the presence of 1GB largepage mappings created using the shmcreatelargepage3 interface. In particular, it...

kernel: smc: Use __sk_dst_get() and dst_dev_rcu() in smc_clc_prfx_match()

A flaw was found in the Linux kernel’s SMC Shared Memory Communication module: in smcclcprfxmatch, the function is called from smclistenwork without proper RCU or RTNL protection. The code previously used skdstgetsk-dev, which can lead to a use-after-free UAF condition if the sk’s destination is...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013733)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013733 advisory. In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfsbnodeget in hfsbnodecreate Syzbot found a kernel BUG in hfsbnodeput: kernel...

FreeBSD : FreeBSD -- Kernel use-after-free bug in the TIOCNOTTY handler (971b5528-3def-11f1-bb07-bc241121aa0a)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 971b5528-3def-11f1-bb07-bc241121aa0a advisory. The implementation of TIOCNOTTY failed to clear a back-pointer from the structure representing the...

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 the ext4setattr function. When the truncation operation exceeds the inline capacity, the inline...

PT-2026-34418

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A stack-out-of-bounds read exists in the Bluetooth L2CAP component. The function l2cap ecred conn req allocates a local stack buffer pdu to hold up to 5 Source Channel IDs SCIDs. When a...

PT-2026-34361

In the Linux kernel, the following vulnerability has been resolved: mm/pagewalk: fix race between concurrent split and refault The splitting of a PUD entry in walk pud range can race with a concurrent thread refaulting the PUD leaf entry causing it to try walking a PMD range that has disappeared...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-013135)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013135 advisory. In the Linux kernel, the following vulnerability has been resolved: ext4: fix bug in extents parsing when ehentries == 0 and ehdepth 0 When walking through an inode...