CVE-2026-49428 posixshm: system calls can incorrectly free memory of largepage objects

Certain system calls, such open2 with the OTRUNC flag set, and fspacectl2, could incorrectly free memory in largepage objects. These operations are not permitted on largepage objects, but the implementation did not verify this. An unprivileged local user can abuse the bug to access freed kernel...

CVE-2026-49428

FreeBSD is vulnerable to a flaw in its posixshm module involving largepage shared memory objects. Specifically, certain system calls such as open(2) with the O_TRUNC flag and fspacectl(2) fail to verify that these operations are prohibited on largepage objects, leading to the incorrect freeing of...

EUVD-2026-62254

Pages belonging to largepage shared memory objects were not explicitly wired. When sendfile2 transmitted such an object with the SFNOCACHE flag, it freed the underlying pages after transmission even though existing mappings still referred to them. An unprivileged local user can abuse the bug to...

CVE-2026-49427

The FreeBSD kernel's posixshm module contains a vulnerability where pages belonging to largepage shared memory objects were not explicitly wired. When sendfile(2) transmits such an object with the SF_NOCACHE flag, it incorrectly frees the underlying pages while existing mappings still refer to th...

CVE-2026-49422

A use-after-free vulnerability exists in the tcp_rack.ko kernel module of FreeBSD operating systems. The RACK setsockopt(2) handler drops the connection lock to copy option data from userspace and reacquires it later; however, it fails to reload the pointer to the stack's per-connection control b...

CVE-2026-49422 Use-after-free in TCP RACK stack option handler

The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, then reacquires the lock. After reacquiring, it verifies that the TCP stack had not been switched away, but did not reload its pointer to the stack's per-connection control block. If userspace...

EUVD-2026-62244

The RACK setsockopt2 handler drops the connection lock in order to copy option data from userspace, then reacquires the lock. After reacquiring, it verifies that the TCP stack had not been switched away, but did not reload its pointer to the stack's per-connection control block. If userspace...

CVE-2026-49419

When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller's current prison before looking up the jail descriptor. If the descriptor lookup failed, error-handling paths released the same reference a second time. An unprivileged local user can trigger a...

CVE-2026-72276

A flaw was found in the metronomefb framebuffer driver within the Linux kernel. This vulnerability occurs because memory allocated for page references is not properly released when an error occurs during initialization. A local attacker could potentially exploit this to cause a denial of service...

EUVD-2026-62231

When the JAILATDESC flag is specified, kernjailset and kernjailget released the reference to the caller's current prison before looking up the jail descriptor. If the descriptor lookup failed, error-handling paths released the same reference a second time. An unprivileged local user can trigger a...

CVE-2026-49419

The FreeBSD operating system (versions 15.0 and later ) is vulnerable to a prison reference count underflow in the kern_jail_set() and kern_jail_get() functions. When the JAIL_AT_DESC flag is used, the system incorrectly releases a reference to the caller's current prison before searching for the...

CVE-2026-76014 BusyBox FEATURE_WGET_TIMEOUT wget.c null pointer dereference

A vulnerability has been found in BusyBox up to 1.30.1. This vulnerability affects unknown code of the file networking/wget.c of the component FEATUREWGETTIMEOUT Handler. Such manipulation of the argument -T leads to null pointer dereference. Local access is required to approach this attack. The...

PT-2026-78668

Name of the Vulnerable Software and Affected Versions IBM AIX versions 7.2 and 7.3 IBM PowerVM VIOS version 4.1 Description An out-of-bounds write allows a local attacker to execute arbitrary code. An out-of-bounds write occurs when a program writes data past the end of the intended buffer,...

The vulnerability of the Win32k.sys component in Windows operating systems, which allows a hacker to increase their privileges

The vulnerability of the Win32k.sys component in Windows operating systems is related to the possibility of using memory after it has been freed. Exploiting this vulnerability can allow an attacker to increase their privileges...

PT-2026-78317

To retrieve the previous timer value, the kernel calls realtimer gettime, which obtains the current time for the timer's clock. For a timer using CLOCK TAI this can fail when no TAI offset has been configured, but the error return was not checked, so the uninitialized output buffer was copied to...

PT-2026-78319

Name of the Vulnerable Software and Affected Versions The product name cannot be determined affected versions not specified Description The GETALL and SETALL commands in the semctl function contain a flaw in how they handle semaphore sets. The process records the number of semaphores, releases th...

CVE-2026-71135

Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization component: Core. The supported version that is affected is 7.2.14. Easily exploitable vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle ...

CVE-2026-70916

Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion component: Security. The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Hyperion Financial...

CVE-2026-70838

Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion component: Security. The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Hyperion Financial...

CVE-2026-62573

Vulnerability in the Oracle Hyperion Infrastructure Technology product of Oracle Hyperion component: Installation and Configuration. The supported version that is affected is 11.2.25.0.000. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Orac...