UBUNTU-CVE-2022-49030

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because...

CVE-2022-49030 libbpf: Handle size overflow for ringbuf mmap

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because...

CVE-2022-49030 libbpf: Handle size overflow for ringbuf mmap

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because...

CVE-2022-49030 libbpf: Handle size overflow for ringbuf mmap

In the Linux kernel, the following vulnerability has been resolved: libbpf: Handle size overflow for ringbuf mmap The maximum size of ringbuf is 2GB on x86-64 host, so 2 maxentries will overflow u32 when mapping producer page and data pages. Only casting maxentries to sizet is not enough, because...

CVE-2022-49030

The CVE-2022-49030 issue affects the Linux kernel component libbpf, specifically a size overflow in ringbuf mmap when mapping producer and data pages. The root cause is an overflow of the 32-bit read/write region size (max 2GB ringbuf on x86-64) due to computing 2 * max_entries, which can overflo...

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 the Linux kernel that stems from improper handling of a size overflow in the libbpf's ringbuf mmap operation, which could affect mmap...

PT-2024-33969

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue arises from the function bpf ringbuf reserve being invoked from a tracepoint, which disables preemption. Using spinlock t in this context can lead to a "sleep in atomic"...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fix a use-after-free CVE-2022-48666 In the Linux kernel, the following vulnerability has been resolved: net: relax socket state check at accept time. CVE-2024-36484 In the Linux kernel, the following...

AZL-43409 CVE-2024-41009 affecting package kernel for versions less than 5.15.164.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix overrunning reservations in ringbuf The BPF ring buffer internally is implemented as a power-of-2 sized circular buffer, with two logical and ever-increasing counters: consumerpos is the consumer counter to show which...

CVE-2022-48714

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714 bpf: Use VM_MAP instead of VM_ALLOC for ringbuf

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714 bpf: Use VM_MAP instead of VM_ALLOC for ringbuf

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714

Summary of CVE-2022-48714 : The Linux kernel vulnerability arises in the ringbuffer mapping used by BPF. The root cause is a Kasan-related mislabeling where mappings created from allocated pages were treated as VM_ALLOC, triggering out-of-bounds reports after vmap() when KASAN is enabled. The fix...

CVE-2022-48714 bpf: Use VM_MAP instead of VM_ALLOC for ringbuf

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

CVE-2022-48714

In the Linux kernel, the following vulnerability has been resolved: bpf: Use VMMAP instead of VMALLOC for ringbuf After commit 2fd3fb0be1d1 "kasan, vmalloc: unpoison VMALLOC pages after mapping", non-VMALLOC mappings will be marked as accessible in getvmareanode when KASAN is enabled. But now the...

K32525759: Linux kernel vulnerability CVE-2021-3489

Security Advisory Description The eBPF RINGBUF bpfringbufreserve function in the Linux kernel did not check that the allocated size was smaller than the ringbuf size, allowing an attacker to perform out-of-bounds writes within the kernel and therefore, arbitrary code execution. This issue was fix...

GSD-2023-1000260 libbpf: Handle size overflow for ringbuf mmap

libbpf: Handle size overflow for ringbuf mmap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.158 by commit...

GSD-2023-1000190 libbpf: Handle size overflow for ringbuf mmap

libbpf: Handle size overflow for ringbuf mmap This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.15.82 by commit...