CVE_2026_31694

CVE-2026-31694 Escáner pasivo Una herramienta pasiva de evaluación de hosts Linux para CVE-2026-31694 , una escritura fuera de los límites en la caché de readdir de FUSE del kernel de Linux. El escáner evalúa el kernel en ejecución, la exposición a FUSE, los metadatos de paquetes locales, la...

CVE-2026-31694-POC

CVE-2026-31694: Desbordamiento de escritura en caché de readdir de FUSE Una verificación de límites faltante en fs/fuse/readdir.c:fuseadddirenttocache. Un servidor FUSE devuelve una entrada de directorio con namelen = 4095, que se serializa en un registro de 4120 bytes. El kernel lo copia en una...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098683)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098683 advisory. In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix use-after-free in cifsfilldirent There is a race condition in the readdir...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ceph: A memory leak was fixed in cephreaddir when notelastdentry returns an error. lastreaddir was reset at the same time, and a comment was added explaining why lastreaddir is not freed when diremit returns false...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: fixed an array-index-out-of-bounds read in addmissingindices. stbl is an s8 type, but it must contain offsets into slots that can range from 0 to 127. A bound check was added for this error, and the error -EIO is returned if...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: jfs: fixed an array-index-out-of-bounds issue in jfsreaddir. The stbl might contain some invalid values. A check was added to return an error code in such cases...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: hfsplus: fixed a slab-out-of-bounds read in hfsplusuni2asc The hfsplusreaddir method can cause a crash by calling hfsplusuni2asc: 667.121659 T9805 ================================================================== 667.122651...

CVE-2026-40553

A flaw was found in gawk. A buffer overflow vulnerability exists in the ftype routine, located in the extension/readdir.c program file. This vulnerability could allow an attacker to crash the program, resulting in a denial of service. It may also potentially lead to arbitrary code execution, thou...

gawk: Gawk: Buffer overflow in ftype() routine may lead to code execution or denial of service

A flaw was found in gawk. A buffer overflow vulnerability exists in the ftype routine, located in the extension/readdir.c program file. This vulnerability could allow an attacker to crash the program, resulting in a denial of service. It may also potentially lead to arbitrary code execution, thou...

GO-2026-5051 Out-of-bounds read and panic in ReadDir in github.com/cloudsoda/go-smb2 and github.com/hirochachacha/go-smb2

ReadDir and ReadDirPlus parse the QUERYDIRECTORY SMB response by advancing through entries using the server-supplied NextEntryOffset field. The pre-fix code does not bound next against the remaining buffer before re-slicing, and the entry decoder IsInvalid check performs length arithmetic in int...

SUSE CVE-2026-64397

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64371

In the Linux kernel, the following vulnerability has been resolved: proc: protect ptracemayaccess with execupdatelock part 1 Fix the easy cases where procfs currently calls ptracemayaccess without execupdatelock protection, where the fix is to simply add the extra lock or use mmaccess: -...

UBUNTU-CVE-2026-64397

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64397 ksmbd: serialize QUERY_DIRECTORY requests per file

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64397 ksmbd: serialize QUERY_DIRECTORY requests per file

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64397

CVE-2026-64397 affects the Linux kernel ksmbd component. The issue arises in smb2_query_dir() which stores a pointer to stack-allocated private data in ksmbd_file readdir_data; concurrent QUERY_DIRECTORY requests using the same file handle can overwrite this pointer while an iterate_dir() callbac...

CVE-2026-64397

In the Linux kernel, the following vulnerability has been resolved: ksmbd: serialize QUERYDIRECTORY requests per file smb2querydir stores a pointer to its stack-allocated private data in the ksmbdfile readdirdata. Concurrent QUERYDIRECTORY requests using the same file handle can overwrite this...

CVE-2026-64371

The CVE-2026-64371 entry concerns a Linux kernel procfs issue where ptrace_may_access() was called without exec_update_lock. The vulnerability has been resolved by ensuring proper locking or using mm_access(): affected paths include do_task_stat(), proc_pid_wchan(), proc_map_files_lookup(), proc_...

JLSEC-2026-788 Buffer overflow in gawk's `readdir.c` can cause denial of service and possible code execution

Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk ftype routine. This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below...

OESA-2026-3162 gawk security update

The gawk package is the GNU implementation of awk. The awk utility interprets a special-purpose programming language that makes it possible to handle simple data-reformatting jobs with just a few lines of code. Security Fixes: Use After Free vulnerability has been found in "io.c" program file of...