CentOS Linux 8.4 [TuxCare] Security Update: expat / expat-devel / expat-static (CENTOS8.4:CLSA-2026:1789142708)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1789142708 advisory. - libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after- free can occur. NOTE: this is...

Rocky Linux 9.6 [TuxCare] Security Update: expat / expat-devel / expat-static Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1784290625)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1784290625 advisory. - libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLGetBuffer, XMLParse, XMLParseBuffer, XMLParserFree, or...

CentOS Linux 6 [TuxCare] Security Update: expat / expat-devel (CENTOS6:CLSA-2026:1789396571)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1789396571 advisory. - libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after- free can occur. NOTE: this is simila...

expat: libexpat: Use-after-free vulnerability due to improper handler call depth tracking

A flaw was found in libexpat. This vulnerability occurs because the library, in versions before 2.8.2, does not properly track handler call depth when certain XML parsing functions are invoked from within handlers during a policy violation. This oversight can lead to a use-after-free condition,...

CVE-2026-76957: Use After Free

libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412...

PT-2026-80468

libexpat before 2.8.2 lacks handler call depth tracking for calls to XML GetBuffer, XML Parse, XML ParseBuffer, XML ParserFree, or XML ParserReset from within handlers in cases of a policy violation. Thus, a use-after-free can occur,...

CVE-2026-64235

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

DEBIAN-CVE-2026-64235

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235 x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines

In the Linux kernel, the following vulnerability has been resolved: x86/ftrace: Relocate %rip-relative percpu refs in dynamic trampolines With CONFIGCALLDEPTHTRACKING enabled on an x86 retbleed-affected platform eg: Skylake, with retbleed=stuff, registering a dynamic ftrace trampoline crashes on...

CVE-2026-64235

CVE-2026-64235 refers to a Linux kernel issue where, on x86 with CONFIG_CALL_DEPTH_TRACKING and retbleed protections (e.g., Skylake), relocating percpu references for dynamic ftrace trampolines caused a crash on the first call to a traced function. The crash was due to a mis relocation of the CAL...

PT-2026-64350

Name of the Vulnerable Software and Affected Versions Linux kernel version 7.0.10 Description An issue exists in the x86 ftrace implementation where registering a dynamic ftrace trampoline on retbleed-affected platforms such as Skylake with CONFIG CALL DEPTH TRACKING enabled and retbleed=stuff...

UBUNTU-CVE-2026-56131

libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur similar to the CVE-2026-50219 situation...

CVE-2026-56131: Use After Free

libexpat before 2.8.2 lacks handler call depth tracking for calls to XMLResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur similar to the CVE-2026-50219 situation...

CVE-2024-40944

A vulnerability was found in the Linux kernel's x86/kexec component, where the function call to ccplatformhas could lead to a system crash when call depth tracking is active. This issue occurs because the GS segment is reset by loadsegments, setting GSBASE to 0, while call depth tracking relies o...

CVE-2024-40944

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to ccplatformhas triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by loadsegments and GSBASE is now 0 but call depth...

DEBIAN-CVE-2024-40944

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to ccplatformhas triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by loadsegments and GSBASE is now 0 but call depth...

CVE-2024-40944

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to ccplatformhas triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by loadsegments and GSBASE is now 0 but call depth...

UBUNTU-CVE-2024-40944

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: Fix bug with call depth tracking The call to ccplatformhas triggers a fault and system crash if call depth tracking is active because the GS segment has been reset by loadsegments and GSBASE is now 0 but call depth...

CVE-2024-40944

CVE-2024-40944 affects the Linux kernel (x86/kexec). The vulnerability is a bug in call depth tracking where calling cc_platform_has() may fault if depth tracking is active because GS_BASE is reset to 0 by load_segments(). The mitigation described in the documentation is to invoke cc_platform_has...