770 matches found
CVE-2021-46990
CVE-2021-46990 affects powerpc/64s in the Linux kernel. The vulnerability arises from runtime patching of entry flush mitigations via a debugfs entry (entry_flush), which can be unsafe when CPUs are active, potentially causing a crash due to an LR restore issue. The fixed vulnerability patches ar...
Linux kernel security vulnerabilities
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 switching entry refresh barrier that could cause a crash...
kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks
A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...
kernel: drm/i915/active: Fix misuse of non-idle barriers as fence trackers
In the Linux kernel, the following vulnerability has been resolved: drm/i915/active: Fix misuse of non-idle barriers as fence trackers Users reported oopses on list corruptions when using i915 perf with a number of concurrently running graphics applications. Root cause analysis pointed at an issu...
kernel: drm/i915/active: Fix misuse of non-idle barriers as fence trackers
In the Linux kernel, the following vulnerability has been resolved: drm/i915/active: Fix misuse of non-idle barriers as fence trackers Users reported oopses on list corruptions when using i915 perf with a number of concurrently running graphics applications. Root cause analysis pointed at an issu...
kernel: dax: make sure inodes are flushed before destroy cache
In the Linux kernel, the following vulnerability has been resolved: dax: make sure inodes are flushed before destroy cache A bug can be triggered by following command $ modprobe ndpmem && modprobe -r ndpmem 10.060014 BUG daxcache Not tainted: Objects remaining in daxcache on kmemcacheshutdown...
PT-2025-18851 · Linux +2 · Linux Kernel +2
Name of the Vulnerable Software and Affected Versions: Linux kernel versions 5.4 through 5.5 Description: A vulnerability in the Linux kernel has been resolved, related to the misuse of non-idle barriers as fence trackers. The issue was caused by a race condition in the barrier processing code,...
USN-6341-1 linux vulnerabilities
Jordy Zomer and Alexandra Sandulescu discovered that syscalls invoking the doprlimit function in the Linux kernel did not properly handle speculative execution barriers. A local attacker could use this to expose sensitive information kernel memory. CVE-2023-0458 It was discovered that a...
The vulnerability of the rcu_barrier() function in the ksmbd module of Linux operating systems allows a hacker to elevate their privileges and execute arbitrary code.
The vulnerability of the rcubarrier function in the ksmbd module of Linux kernels is related to synchronization errors when using shared resources. Exploiting this vulnerability can allow an attacker to enhance their privileges and execute arbitrary code...
kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks
A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...
kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks
A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...
kernel: NFSv4/pNFS: Fix a race to wake on NFS_LAYOUT_DRAIN
In the Linux kernel, the following vulnerability has been resolved: NFSv4/pNFS: Fix a race to wake on NFSLAYOUTDRAIN We found a few different systems hung up in writeback waiting on the same page lock, and one task waiting on the NFSLAYOUTDRAIN bit in pnfsupdatelayout, however the pnfslayouthdr's...
kernel: KVM: nVMX: missing IBPB when exiting from nested guest can lead to Spectre v2 attacks
A flaw was found in the KVM's Intel nested virtualization feature nVMX. Since L1 and L2 shared branch prediction modes guest-user and guest-kernel, KVM did not protect indirect branches in L1 from steering by a malicious agent in L2. This could allow a malicious nested guest to carry out Spectre ...
PT-2023-2825 · Linux +2 · Linux Kernel +2
Name of the Vulnerable Software and Affected Versions: Linux Kernel affected versions not specified Description: The issue is related to a synchronization error in the rcu barrier function of the ksmbd module in the Linux kernel, which can be exploited to elevate privileges and execute arbitrary...
Siemens SCALANCE X Expected Behavior Violation (CVE-2019-6569)
The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to transmit malicious packets to systems in the mirrored network, possibly influencing their configuration and runtime...
OESA-2023-1143 kernel security update
The Linux Kernel, the operating system core itself. Security Fixes: The Linux kernel does not correctly mitigate SMT attacks, as discovered through a strange pattern in the kernel API using STIBP as a mitigation1 https://docs.kernel.org/userspace-api/specctrl.html, leaving the process exposed for...
SUSE CVE-2017-12179
xorg-x11-server before 1.19.5 was vulnerable to integer overflow in SProcXIBarrierReleasePointer functions allowing malicious X client to cause X server to crash or possibly execute arbitrary code...
SUSE CVE-2020-10767
A flaw was found in the Linux kernel before 5.8-rc1 in the implementation of the Enhanced IBPB Indirect Branch Prediction Barrier. The IBPB mitigation will be disabled when STIBP is not available or when the Enhanced Indirect Branch Restricted Speculation IBRS is available. This flaw allows a loc...
SUSE CVE-2020-11739
An issue was discovered in Xen through 4.13.x, allowing guest OS users to cause a denial of service or possibly gain privileges because of missing memory barriers in read-write unlock paths. The read-write unlock paths don't contain a memory barrier. On Arm, this means a processor is allowed to...