kernel: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

A race condition was found in the Linux kernel’s POSIX CPU timer handling, where handleposixcputimers may run concurrently with posixcputimerdel on an exiting task which could result in use-after-free scenarios. An attacker with local user access could use this flaw to crash or escalate their...

UBUNTU-CVE-2023-53274

In the Linux kernel, the following vulnerability has been resolved: clk: mediatek: mt8183: Add back SSPM related clocks This reverts commit 860690a93ef23b567f781c1b631623e27190f101. On the MT8183, the SSPM related clocks were removed claiming a lack of usage. This however causes some issues when...

ACPI: processor: perflib: Move problematic pr->performance check

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Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value CVE-2022-50327 In the Linux kernel, the following vulnerability has been resolved: cifs: Fix UAF in cifsdemultiplexthread CVE-2023-52572 In the Linux...

Amazon Linux 2 : microcode_ctl, --advisory ALAS2-2025-2994 (ALAS-2025-2994)

The version of microcodectl installed on the remote host is prior to 2.1-47. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2994 advisory. A potential security vulnerability in some Intelr Processors may allow information disclosure. Intel is releasing...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value CVE-2022-50327 In the Linux kernel, the following vulnerability has been resolved: bpf: Fix helper writes to read-only maps CVE-2024-49861 In the Linux...

SUSE CVE-2022-50327

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

SUSE CVE-2023-53254

In the Linux kernel, the following vulnerability has been resolved: cacheinfo: Fix sharedcpumap to handle shared caches at different levels The cacheinfo sets up the sharedcpumap by checking whether the caches with the same index are shared between CPUs. However, this will trigger...

AZL-74646 CVE-2022-50327 affecting package kernel for versions less than 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

DEBIAN-CVE-2022-50327

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

CVE-2022-50327

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

UBUNTU-CVE-2022-50327

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

CVE-2022-50327

CVE-2022-50327 in the Linux kernel concerns ACPI: processor: idle where acpi_fetch_acpi_dev() could return NULL, causing a NULL pointer dereference in acpi_device_hid(). The connected Nessus/SUSE advisories confirm this CVE is addressed in kernel live patches for SUSE SLES15 SP5 (multiple patches...

CVE-2022-50327 ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

CVE-2022-50327 ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value

In the Linux kernel, the following vulnerability has been resolved: ACPI: processor: idle: Check acpifetchacpidev return value The return value of acpifetchacpidev could be NULL, which would cause a NULL pointer dereference to occur in acpidevicehid. rjw: Subject and changelog edits, added empty...

CVE-2023-53254 cacheinfo: Fix shared_cpu_map to handle shared caches at different levels

In the Linux kernel, the following vulnerability has been resolved: cacheinfo: Fix sharedcpumap to handle shared caches at different levels The cacheinfo sets up the sharedcpumap by checking whether the caches with the same index are shared between CPUs. However, this will trigger...

CVE-2022-50296 UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK

In the Linux kernel, the following vulnerability has been resolved: UM: cpuinfo: Fix a warning for CONFIGCPUMASKOFFSTACK When CONFIGCPUMASKOFFSTACK and CONFIGDEBUGPERCPUMAPS is selected, cpumaxbitswarn generates a runtime warning similar as below while we show /proc/cpuinfo. Fix this by using...

CVE-2023-53215 sched/fair: Don't balance task to its current running CPU

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Don't balance task to its current running CPU We've run into the case that the balancer tries to balance a migration disabled task and trigger the warning in settaskcpu like below: ------------ cut here ------------...

CVE-2023-53208

CVE-2023-53208 : Linux kernel KVM nested virtualization flaw where L1’s TSC multiplier is loaded based on L1 state instead of L2, causing a mismatch that userspace can trigger via MSR writes and guest CPUID changes. The fix ensures L1’s multiplier is loaded when exiting nested VM, preventing the ...

CVE-2023-53205

CVE-2023-53205 affects the Linux kernel KVM on s390, specifically the diag 9c handler where a race exists around the target CPU value (-1). The fix stores the physical target CPU in a local variable to prevent out-of-bounds accesses to CPU arrays. The CVE’s risk is described as high (CVSS v3.1: A...