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 contention between writeprotect and exitmmap...

CVE-2023-52839

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...

CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

DEBIAN-CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

UBUNTU-CVE-2023-52737

In the Linux kernel, the following vulnerability has been resolved: btrfs: lock the inode in shared mode before starting fiemap Currently fiemap does not take the inode's lock VFS lock, it only locks a file range in the inode's io tree. This however can lead to a deadlock if we have a concurrent...

UBUNTU-CVE-2023-52835

In the Linux kernel, the following vulnerability has been resolved: perf/core: Bail out early if the request AUX area is out of bound When perf-record with a large AUX area, e.g 4GB, it fails with: perf record -C 0 -m ,4G -e armspe0// -- sleep 1 failed to mmap with 12 Cannot allocate memory and i...

CVE-2023-52839 drivers: perf: Do not broadcast to other cpus when starting a counter

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...

CVE-2023-52839 drivers: perf: Do not broadcast to other cpus when starting a counter

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: Do not broadcast to other cpus when starting a counter This command: $ perf record -e cycles:k -e instructions:k -c 10000 -m 64M dd if=/dev/zero of=/dev/null count=1000 gives rise to this kernel warning: 444.364395...

CVE-2023-52835

CVE-2023-52835 affects the Linux kernel perf subsystem. The root issue is that a large AUX area (e.g., 4 GB) can cause rb_alloc_aux and related allocations to hit bounds and mmap failure, triggering a WARN and an ENOMEM during perf-record. The fix is to bail out early if the requested AUX area is...

SUSE CVE-2024-35880

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

DEBIAN-CVE-2024-35880

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880 io_uring/kbuf: hold io_buffer_list reference over mmap

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880 io_uring/kbuf: hold io_buffer_list reference over mmap

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35880 io_uring/kbuf: hold io_buffer_list reference over mmap

In the Linux kernel, the following vulnerability has been resolved: iouring/kbuf: hold iobufferlist reference over mmap If we look up the kbuf, ensure that it doesn't get unregistered until after we're done with it. Since we're inside mmap, we cannot safely use the iouring lock. Rely on the fact...

CVE-2024-35877 x86/mm/pat: fix VM_PAT handling in COW mappings

In the Linux kernel, the following vulnerability has been resolved: x86/mm/pat: fix VMPAT handling in COW mappings PAT handling won't do the right thing in COW mappings: the first PTE or, in fact, all PTEs can be replaced during write faults to point at anon folios. Reliably recovering the correc...

The vulnerability of the change_pte_range() function in the mm/mprotect.c memory management module of the Android operating system allows a hacker to increase their privileges within the system.

The vulnerability of the changepterange function in the mm/mprotect.c memory manager of the Android operating system is related to the lack of authentication control when working with shared mmap memory blocks. Exploiting this vulnerability can allow an attacker to increase their privileges withi...

RHEL 6 : procps-ng,_procps (Unpatched Vulnerability)

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched. - procps-ng, procps: Local privilege escalation in top CVE-2018-1122 - procps-ng, procps is vulnerable to a...