UBUNTU-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-2026-23394 af_unix: Give up GC if MSG_PEEK intervened.

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-2026-23394 af_unix: Give up GC if MSG_PEEK intervened.

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-2026-23380

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,...

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 drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()

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-2026-23319 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-2026-23319

Summary (CVE-2026-23319) : In the Linux kernel, a use-after-free (UAF) vulnerability in bpf_trampoline_link_cgroup_shim was fixed. The root cause was a race window where, after bpf_link_put reduces the refcount of shim_link->link.link to zero, the resource is considered released but may still ...

CVE-2026-23319

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 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-2026-23296

CVE-2026-23296 affects the Linux kernel SCSI core, specifically a refcount leak in tagset_refcnt that can cause a hang when tearing down a SCSI host (e.g., iscsid hang during SCSI scanning). The vulnerability is local in nature with a base score of 5.5 (MEDIUM); exploitation details are not provi...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-23319

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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,...

Siemens SIMATIC S7-1500 Improper Input Validation (CVE-2025-38470)

"In the Linux kernel, the following vulnerability has been resolved: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime Assuming the rx-vlan-filter feature is enabled on a net device, the 8021q module will automatically add or remove VLAN 0 when the net device is put...

perf/core: Fix refcount bug and potential UAF in perf_mmap

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SUSE 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...

EUVD-2026-12811

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...

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...

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...

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...