PT-2026-42400

Name of the Vulnerable Software and Affected Versions fusefs affected versions not specified Description When a fusefs file system implements extended attributes, the kernel may send a FUSE LISTXATTR message to the userspace daemon to retrieve the list of extended attributes for a file. The FUSE...

FreeBSD : FreeBSD -- Kernel use-after-free via file descriptor syscalls (ee21f41f-54b5-11f1-8d7a-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 ee21f41f-54b5-11f1-8d7a-bc241121aa0a advisory. A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that...

CVE-2026-46333: Local Root Privilege Escalation and Credential Disclosure in the Linux Kernel ptrace Path

The Qualys Threat Research Unit TRU has discovered and published the full advisory for CVE-2026-46333, a logic flaw in the Linux kernel's ptracemayaccess function that permits an unprivileged local user to disclose sensitive files and execute arbitrary commands as root on default installations of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: crypto: iaa – Fix for the asyncdisable descriptor leak The paths for disabling asyncdisable in functions like iaacompress and decompress do not free the idxd descriptors when asyncdisable is set. Currently, this issue only occurs...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: genirq/irqdesc: Prevent use-after-free in irqfindatorafter The irqfindatorafter function dereferences the interrupt descriptor returned by mtfind, without holding the sparseirqlock or RCU read lock. This means that the descriptor...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: bnxten: The bdcnt field in the TX BD must be properly masked. The bdcnt field in the TX BD specifies the total number of BDs for the TX packet. This field consists of 5 bits, and the maximum supported value is 32, with the value ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: rustbinder: Properly handles FDA objects of length zero. A bug has been fixed where an empty FDA fd array object with 0 fds could cause an out-of-bounds error. The previous implementation used skip == 0 to indicate “this is a...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: xsk: Avoid data corruption on cq descriptor number Since commit 30f241fcf52a “xsk: Fix immature cq descriptor production”, the descriptor number is stored in the skb control block, and xskcqsubmitaddrlocked relies on it to place...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: fixed a possible issue where the descriptor completion was performed incorrectly in llistabortdesc. At the end of this function, d represents the traversal cursor of flist, but the code actually completes the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Fixed the descriptor address in kvmatswapdesc Using “u64 user hva + offset” to obtain the virtual addresses of S1/S2 descriptors seems incorrect, especially when offset is not zero. What we actually want to get for...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Wifi: ath12k – Fixed a memory leak in rxdesc and txdesc. Currently, when the ath12kdpccdescinit function is called, memory is allocated for rxdescs and txdescs. However, during the ath12kdpcccleanup function, the memory for rxdes...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: gpib: A use-after-free occurred in the IO ioctl handlers. The IBRD, IBWRT, IBCMD, and IBWAIT ioctl handlers use a gpibdescriptor pointer after the board-biggpibmutex has been released. A concurrent IBCLOSEDEV ioctl can free the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: Fuse: Abort on fatal signal during sync init When sync init is used and the server exits for some reason e.g., error, crash, the filesystem creation will hang during the processing of FUSEINIT. The reason for this issue is that...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: iio: Buffer: Fixed error handling related to files in IIOBUFFERGETFDIOCTL. If we fail to copy the newly created file descriptor to userland, we try to clean it up by returning the ‘fd’ and freeing the ‘ib’. The code uses...

Exploit for CVE-2026-46333

ptracemaydream CVE-2026-46333 Local privilege escalation e...

FreeBSD Security Advisory - FreeBSD-SA-26:22.libcasper

FreeBSD Security Advisory - libcasper3 communicates with helper processes via UNIX domain sockets, and uses the select2 system call to wait for data to become available. However, it does not verify that its socket descriptor fits within select2's descriptor set size limit of FDSETSIZE 1024...

FreeBSD Security Advisory - FreeBSD-SA-26:19.file

FreeBSD Security Advisory - A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that descriptor. Because the blocked thread does not hold a reference to the underlying object, this closure may result in the object being freed while the thread remains...

FreeBSD -- select(2) file descriptor set overflow causes stack overflow

Problem Description: libcasper3 communicates with helper processes via UNIX domain sockets, and uses the select2 system call to wait for data to become available. However, it does not verify that its socket descriptor fits within select2's descriptor set size limit of FDSETSIZE 1024. Impact: An...

FreeBSD -- Kernel use-after-free via file descriptor syscalls

Problem Description: A file descriptor can be closed while a thread is blocked in a poll2 or select2 call waiting for that descriptor. Because the blocked thread does not hold a reference to the underlying object, this closure may result in the object being freed while the thread remains blocked...

FreeBSD-SA-26:19.file

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-26:19.file Security Advisory The FreeBSD Project Topic: Kernel use-after-free via file descriptor syscalls Category: core Module: file Announced: 2026-05-20...