UBUNTU-CVE-2026-23356

In the Linux kernel, the following vulnerability has been resolved: drbd: fix "LOGIC BUG" in drbdalbeginiononblock Even though we check that we "should" be able to do lcgetcumulative while holding the device-allock spinlock, it may still fail, if some other code path decided to do lctrylock with...

UBUNTU-CVE-2026-23394

In the Linux kernel, the following vulnerability has been resolved: afunix: Give up GC if MSGPEEK intervened. Igor Ushakov reported that GC purged the receive queue of an alive socket due to a race with MSGPEEK with a nice repro. This is the exact same issue previously fixed by commit cbcf01128d0...

UBUNTU-CVE-2026-23380

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix WARNON in tracingbuffersmmapclose When a process forks, the child process copies the parent's VMAs but the usermapped reference count is not incremented. As a result, when both the parent and child processes exit,...

UBUNTU-CVE-2026-23284

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtkethsoc: Reset prog ptr to oldprog in case of error in mtkxdpsetup Reset eBPF program pointer to oldprog and do not decrease its ref-count if mtkopen routine in mtkxdpsetup fails...

CVE-2026-23394

In the Linux kernel, the following vulnerability has been resolved: afunix: Give up GC if MSGPEEK intervened. Igor Ushakov reported that GC purged the receive queue of an alive socket due to a race with MSGPEEK with a nice repro. This is the exact same issue previously fixed by commit cbcf01128d0...

CVE-2026-23356

In the Linux kernel, the following vulnerability has been resolved: drbd: fix "LOGIC BUG" in drbdalbeginiononblock Even though we check that we "should" be able to do lcgetcumulative while holding the device-allock spinlock, it may still fail, if some other code path decided to do lctrylock with...

CVE-2026-23356

The CVE-2026-23356 issue affects the Linux kernel DRBD subsystem. A logic bug in drbd_al_begin_io_nonblock() could mis-handle a reference-counted extent when lc_get_cumulative() and lc_try_lock() timing collided, risking a crash or incorrect assumption that an activity log extent is active during...

CVE-2026-23319 bpf: Fix a UAF issue in bpf_trampoline_link_cgroup_shim

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a UAF issue in bpftrampolinelinkcgroupshim The root cause of this bug is that when 'bpflinkput' reduces the refcount of 'shimlink-link.link' to zero, the resource is considered released but may still be referenced via...

CVE-2026-23296

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix refcount leak for tagsetrefcnt This leak will cause a hang when tearing down the SCSI host. For example, iscsid hangs with the following call trace: 130120.652718 scsiallocsdev: Allocation failure during SCSI...

CVE-2026-23296 scsi: core: Fix refcount leak for tagset_refcnt

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix refcount leak for tagsetrefcnt This leak will cause a hang when tearing down the SCSI host. For example, iscsid hangs with the following call trace: 130120.652718 scsiallocsdev: Allocation failure during SCSI...

CVE-2026-23284 net: ethernet: mtk_eth_soc: Reset prog ptr to old_prog in case of error in mtk_xdp_setup()

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: mtkethsoc: Reset prog ptr to oldprog in case of error in mtkxdpsetup Reset eBPF program pointer to oldprog and do not decrease its ref-count if mtkopen routine in mtkxdpsetup fails...

CVE-2026-23291: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfc: pn533: properly drop the usb interface reference on disconnect When the device is disconnected from the driver, there is a "dangling" reference count on the usb interface that was grabbed in the probe callback. Fix this up b...

ROS-20260324-73-0003

A vulnerability in the mmap function of the Linux operating system kernel is related to errors in updating the reference count. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

PT-2026-38994

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An unbalanced reference count occurs in the f subset USB gadget driver. The geth alloc function increments the reference count, but the geth free function fails to decrement it. This iss...

The vulnerability of the nfsd4_copy() function in the fs/nfsd/nfs4proc.c module, which is part of the NFS network file system support in Linux kernel, allows a hacker to cause a service failure.

The vulnerability of the nfsd4copy function in the fs/nfsd/nfs4proc.c module, which is part of the NFS network file system support in Linux kernels, stems from an improper handling of reference counts when resources are utilized. Exploiting this vulnerability could allow a attacker to cause servi...

CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

UBUNTU-CVE-2026-23248

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fix refcount bug and potential UAF in perfmmap Syzkaller reported a refcountt: addition on 0; use-after-free warning in perfmmap. The issue is caused by a race condition between a failing mmap setup and a concurrent mm...

The vulnerability of the sound/soc/intel/avs component in Linux operating systems allows attackers to access confidential data, compromise its integrity, and cause service failures.

The vulnerability of the sound/soc/intel/avs component in Linux operating systems is related to the dereferencing of a pointer with an expired reference count. Exploiting this vulnerability can allow an attacker to access confidential data, compromise its integrity, and cause service failures...

Microsoft Windows win32full Improper Release Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the win32kfull...

Microsoft Windows win32full Improper Release Local Privilege Escalation Vulnerability

This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the win32kfull...