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 tcpmakesynack not disabling preemption when accessing per-CPU variables in the process context...

kernel: mm: vmalloc: check if a hash-index is in cpu_possible_mask

A vulnerability was found in the Linux kernel that involves improper handling of per-CPU data in systems where cpupossiblemask has gaps between CPUs. This can lead to an index which accesses non-existent or unset CPU areas and potentially causes kernel crashes...

SUSE CVE-2024-43851

In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: rename cpunumber1 to dummycpunumber The per cpu variable cpunumber1 is passed to xlnxeventhandler as argument "devid", but it is not used in this function. So drop the initialization of this variable and rename it to...

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...

SUSE CVE-2024-26690

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: protect updates of 64-bit statistics counters As explained by a comment in , write side of struct u64statssync must ensure mutual exclusion, or one seqcount update could be lost on 32-bit platforms, thus blocking...

kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c

A flaw was found in the allocatetracebuffer in kernel/trace/trace.c in the debug subsystem, when failure to allocate a dynamic percpu area, a resource cleanup is called. The pointer buf-buffer still holds the address and is not set to NULL, which can cause a use-after-free problem, leading to a...

kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c

A flaw was found in the allocatetracebuffer in kernel/trace/trace.c in the debug subsystem, when failure to allocate a dynamic percpu area, a resource cleanup is called. The pointer buf-buffer still holds the address and is not set to NULL, which can cause a use-after-free problem, leading to a...