CVE-2024-42075 bpf: Fix remap of arena.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arenavmclose...

CVE-2024-42075 bpf: Fix remap of arena.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix remap of arena. The bpf arena logic didn't account for mremap operation. Add a refcnt for multiple mmap events to prevent use-after-free in arenavmclose...

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 a mremap operation not being accounted for in the bpf arena logic, which requires reference counts to be add...

PT-2024-29729 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: The issue is related to the bpf arena logic in the Linux kernel, which did not account for the mremap operation. This led to a potential use-after-free scenario in the arena vm close...

SUSE CVE-2023-1476

A use-after-free flaw was found in the Linux kernel's mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system...

CVE-2023-52646

A flaw was found in the Linux kernel’s Asynchronous I/O AIO subsystem. The issue arises due to a NULL pointer dereference null-deref when using the mremap function after a fork operation, specifically on old AIO mappings. The vulnerability occurs because the ioctxtable is set to NULL after the...

CVE-2023-52646

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

UBUNTU-CVE-2023-52646

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646 aio: fix mremap after fork null-deref

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646 aio: fix mremap after fork null-deref

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646 aio: fix mremap after fork null-deref

In the Linux kernel, the following vulnerability has been resolved: aio: fix mremap after fork null-deref Commit e4a0d3e720e7 "aio: Make it possible to remap aio ring" introduced a null-deref if mremap is called on an old aio mapping after fork as mm-ioctxtable will be set to NULL...

CVE-2023-52646

CVE-2023-52646 concerns the Linux kernel. A null-deref can occur when mremap is invoked on an old aio mapping after a fork because mm->ioctx_table is NULL. The issue was introduced by the patch that made it possible to remap the aio ring and has been fixed by the accompanying commit (e4a0d3e72...

The vulnerability of the mremap() function in Linux operating systems allows a hacker to cause a system failure or gain increased privileges.

The vulnerability of the mremap function in Linux operating systems is related to the use of memory after it is freed, as a result of the race condition that occurs when processing the memory-management structure rmap. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2023-1476

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system...

CVE-2023-1476

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system...

kpatch: mm/mremap.c: incomplete fix for CVE-2022-41222

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code. This issue occurs due to a race condition between rmap walk and mremap, allowing a local user to crash the system or potentially escalate their privileges on the system...

kernel: mm/mremap.c use-after-free vulnerability

A use-after-free flaw was found in the Linux kernel’s mm/mremap memory address space accounting source code in how a race condition happens between rmap walk and mremap. This flaw allows a local user to crash or potentially escalate their privileges on the system...

GSD-2023-1002420 aio: fix mremap after fork null-deref

aio: fix mremap after fork null-deref 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 v4.14.306 by commit...