CVE-2023-53259 VMCI: check context->notify_page after call to get_user_pages_fast() to avoid GPF

In the Linux kernel, the following vulnerability has been resolved: VMCI: check context-notifypage after call to getuserpagesfast to avoid GPF The call to getuserpagesfast in vmcihostsetupnotify can return NULL context-notifypage causing a GPF. To avoid GPF check if context-notifypage == NULL and...

CVE-2023-53259

CVE-2023-53259 (Linux kernel) is a local vulnerability in VMCI where vmci_host_setup_notify() may dereference a NULL context->notify_page after get_user_pages_fast(), causing a general protection fault. The fix, as documented in the advisory, is to validate context->notify_page and return a...

CVE-2023-53259 VMCI: check context->notify_page after call to get_user_pages_fast() to avoid GPF

In the Linux kernel, the following vulnerability has been resolved: VMCI: check context-notifypage after call to getuserpagesfast to avoid GPF The call to getuserpagesfast in vmcihostsetupnotify can return NULL context-notifypage causing a GPF. To avoid GPF check if context-notifypage == NULL and...

kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugepmdunshare vs GUP-fast race hugepmdunshare drops a reference on a page table that may have previously been shared across processes, potentially turning it into a normal page table used in another process in...

kernel: x86: fix user address masking non-canonical speculation issue

A flaw was found in the Linux kernel's handling of user address masking on x86 architectures. This vulnerability, similar to "Meltdown Lite," allows for speculative execution a CPU optimization technique to be exploited due to incorrect handling of non-canonical memory accesses in kernel space. A...

tracing: Limit access to parser->buffer when trace_get_user failed

...

parisc: Revise __get_user() to probe user read access

...

Linux Distros Unpatched Vulnerability : CVE-2025-39683

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following...

AZL-73695 CVE-2025-39683 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

DEBIAN-CVE-2025-39683

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

CVE-2025-39683

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

AZL-67037 CVE-2025-39683 affecting package kernel for versions less than 6.6.104.2-1

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

UBUNTU-CVE-2025-39683

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

CVE-2025-39716 parisc: Revise __get_user() to probe user read access

In the Linux kernel, the following vulnerability has been resolved: parisc: Revise getuser to probe user read access Because of the way read access support is implemented, read access interruptions are only triggered at privilege levels 2 and 3. The kernel executes at privilege level 0, so getuse...

CVE-2025-39716

CVE-2025-39716 affects the Linux kernel (parisc) and describes a read-access checking issue in __get_user(). Because read access support was only triggered at privilege levels 2/3, the kernel ran at ring 0 and failed to raise a read-access fault (code 26). The fix probes read access rights at pri...

CVE-2025-39683 tracing: Limit access to parser->buffer when trace_get_user failed

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

CVE-2025-39683 tracing: Limit access to parser->buffer when trace_get_user failed

In the Linux kernel, the following vulnerability has been resolved: tracing: Limit access to parser-buffer when tracegetuser failed When the length of the string written to setftracefilter exceeds FTRACEBUFFMAX, the following KASAN alarm will be triggered: BUG: KASAN: slab-out-of-bounds in...

CVE-2025-39683

CVE-2025-39683 (Linux kernel tracing vulnerability) The issue occurs when processing long strings in ftrace filters: trace_get_user may fail, but parser->buffer end is not zeroed, leading to a slab-out-of-bounds read in strsep/ftrace_process_regex and related release paths. The result is a loc...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from the tracing module not restricting access to parser-buffer when tracegetuser fails...

kernel: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix hugepmdunshare vs GUP-fast race hugepmdunshare drops a reference on a page table that may have previously been shared across processes, potentially turning it into a normal page table used in another process in...