Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues The following security issues were fixed: CVE-2022-49979: net: fix refcount bug in skpsockget bsc1245109. CVE-2023-20585: x86/CPU: Fix FPDSS on Zen1 bsc1243603. CVE-2026-23239: espintcp: Fix race condition in...

Linux Distros Unpatched Vulnerability : CVE-2026-46107

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - dm-thin: fix metadata refcount underflow There's a bug in dm-thin in the function rebalancechildren. If the internal btree node has one entry, the code tries to...

kernel: nbd: defer config unlock in nbd_genl_connect

In the Linux kernel, the following vulnerability has been resolved: nbd: defer config unlock in nbdgenlconnect There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs=2 set NBDRTHASCONFIGREF...

CVE-2026-45960 hfsplus: return error when node already exists in hfs_bnode_create

In the Linux kernel, the following vulnerability has been resolved: hfsplus: return error when node already exists in hfsbnodecreate When hfsbnodecreate finds that a node is already hashed which should not happen in normal operation, it currently returns the existing node without incrementing its...

Astra Linux - уязвимость в linux-5.10, linux-6.1

In the Linux kernel, the following vulnerability has been resolved: hfsplus: Fixed the missing hfsbnodeget function in hfsbnodecreate. When sync and link are called concurrently, both threads may enter hfsbnodefind, but fail to find the node in the hash table and proceed to creating it instead...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerabilities have been resolved: net: fixed a refcount bug in skpsockget 2 Syzkaller reported the refcount bug as follows: ------------ cut here ------------ refcountt: saturated; memory was leaking. WARNING: CPU: 1 PID: 3605 at lib/refcount.c:19...

Astra Linux - уязвимость в linux-5.10, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: net: qrtr: A refcount bug was fixed in qrtrrecvmsg. Syzbot reported the following bug: refcountt: An addition operation resulted in 0; a use-after-free occurred. … RIP: 0010:refcountwarnsaturate+0x17c/0x1f0, lib/refcount.c:25. …...

Astra Linux - уязвимость в linux-5.10

In the Linux kernel, the following vulnerability has been resolved: Memory: Fixed the refcount leak issue in oflpddr3getddrtimings. We should add the ofnodeput function when exiting from foreachchildofnode, as this will automatically increase and decrease the refcount...

CVE-2026-43343

A flaw was found in the usb: gadget: fsubset module of the Linux kernel. The gethfree function fails to decrement a reference count that was incremented by gethalloc. This unbalanced reference count can lead to a resource leak, preventing the configuration of attributes through the configfs...

Linux Distros Unpatched Vulnerability : CVE-2026-43343

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - usb: gadget: fsubset: Fix unbalanced refcnt in gethfree gethalloc increments the reference count, but gethfree fails to decrement it. This prevents the...

CVE-2026-43106 cachefiles: fix incorrect dentry refcount in cachefiles_cull()

In the Linux kernel, the following vulnerability has been resolved: cachefiles: fix incorrect dentry refcount in cachefilescull The patch mentioned below changed cachefilesburyobject to expect 2 references to the 'rep' dentry. Three of the callers were changed to use startremovingdentry which tak...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-013600)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013600 advisory. In the Linux kernel, the following vulnerability has been resolved: configfs: fix possible memory leak in configfscreatedir kmemleak reported memory leaks in...

Unity Linux 20.1050e / 20.1070e Security Update: kernel (UTSA-2026-011335)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-011335 advisory. In the Linux kernel, the following vulnerability has been resolved: net: qrtr: Fix a refcount bug in qrtrrecvmsg Syzbot reported a bug as following: refcountt:...

CVE-2026-33023

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. In versions 1.8.7 and prior, when built with the --with-gdk-pixbuf2 option, a use-after-free vulnerability exists in loadwithgdkpixbuf in loader.c. The cleanup path manually frees the sixelframet object and its interna...

CVE-2026-33023 libsixel: Use-after-free in load_with_gdkpixbuf()

libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. In versions 1.8.7 and prior, when built with the --with-gdk-pixbuf2 option, a use-after-free vulnerability exists in loadwithgdkpixbuf in loader.c. The cleanup path manually frees the sixelframet object and its interna...

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

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...