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...

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...

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...

CVE-2026-23248

CVE-2026-23248 affects the Linux kernel perf/core component, specifically the perf_mmap path that initializes a ring_buffer. The issue is a race between a failing mmap() setup and a concurrent mmap() on a dependent event (e.g., due to output redirection). The ring_buffer pointer (event->rb) is...

Linux Distros Unpatched Vulnerability : CVE-2026-23248

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

Important: kernel6.12

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: bpf: Reject narrower access to pointer ctx fields CVE-2025-38591 In the Linux kernel, the following vulnerability has been resolved: schedext: Fix possible deadlock in the deferredirqworkfn CVE-2025-68333 In the...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005660)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005660 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:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005760)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005760 advisory. In the Linux kernel, the following vulnerability has been resolved: clk: tegra20: Fix refcount leak in tegra20clockinit offindmatchingnode returns a node pointer wit...

Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005426)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005426 advisory. In the Linux kernel, the following vulnerability has been resolved: net: tipc: fix refcount warning in tipcaeadencrypt syzbot reported a refcount warning 1 caused by...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005608)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005608 advisory. In the Linux kernel, the following vulnerability has been resolved: clk: tegra20: Fix refcount leak in tegra20clockinit offindmatchingnode returns a node pointer wit...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2026-50134)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50134 advisory. - xfrm: delete x-tunnel as we delete x Sabrina Dubroca Orabug: 39016501 CVE-2025-40215 - crypto: afalg - Fix incorrect boolean values in afalgctx...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005674)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005674 advisory. In the Linux kernel, the following vulnerability has been resolved: clk: tegra: Fix refcount leak in tegra210clockinit offindmatchingnode returns a node pointer with...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005609)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005609 advisory. In the Linux kernel, the following vulnerability has been resolved: clk: tegra: Fix refcount leak in tegra210clockinit offindmatchingnode returns a node pointer with...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005768)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005768 advisory. In the Linux kernel, the following vulnerability has been resolved: ipv6/addrconf: fix a potential refcount underflow for idev Now in addrconfmodrstimer, reference...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005621)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005621 advisory. In the Linux kernel, the following vulnerability has been resolved: memory: of: Fix refcount leak bug in oflpddr3getddrtimings We should add the ofnodeput when...