USN-7154-2: Linux kernel (HWE) vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - MIPS architecture; - PowerPC architecture; - RISC-V architecture; - S390 architecture; -...

CVE-2024-56765: Use After Free

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries/vas: Add close callback in vasvmops struct The mapping VMA address is saved in VAS window struct when the paste address is mapped. This VMA address is used during migration to unmap the paste address if the window...

PT-2026-2880

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to kexec functionality on PowerPC architectures. Specifically, if Simultaneous Multi-Threading SMT is disabled or partially enabled, attempting ...

SUSE CVE-2024-56677

In the Linux kernel, the following vulnerability has been resolved: powerpc/fadump: Move fadumpcmainit to setuparch after initmeminit During early init CMAMINALIGNMENTBYTES can be PAGESIZE, since pageblockorder is still zero and it gets initialized later during initmeminit e.g. setuparch -...

SUSE CVE-2024-56701

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

DEBIAN-CVE-2024-56701

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

CVE-2024-56701

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

DEBIAN-CVE-2024-56677

In the Linux kernel, the following vulnerability has been resolved: powerpc/fadump: Move fadumpcmainit to setuparch after initmeminit During early init CMAMINALIGNMENTBYTES can be PAGESIZE, since pageblockorder is still zero and it gets initialized later during initmeminit e.g. setuparch -...

UBUNTU-CVE-2024-56701

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

CVE-2024-56701 powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

CVE-2024-56701

CVE-2024-56701: Linux kernel powerpc/pseries code fixed a sleeping-lock issue by changing dtl_access_lock to a rw_semaphore because kmalloc() can sleep while held. Root cause: a non-sleeping lock protected code path that sleeps, causing a potential sleep in atomic context. Impact is local (LOCAL)...

CVE-2024-56701 powerpc/pseries: Fix dtl_access_lock to be a rw_semaphore

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

CVE-2024-56701

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...

CVE-2024-56678 powerpc/mm/fault: Fix kfence page fault reporting

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm/fault: Fix kfence page fault reporting copyfromkernelnofault can be called when doing read of /proc/kcore. /proc/kcore can have some unmapped kfence objects which when read via copyfromkernelnofault can cause page...

CVE-2024-56678

In the Linux kernel, the following vulnerability has been resolved: powerpc/mm/fault: Fix kfence page fault reporting copyfromkernelnofault can be called when doing read of /proc/kcore. /proc/kcore can have some unmapped kfence objects which when read via copyfromkernelnofault can cause page...

CVE-2024-56677

Summary (CVE-2024-56677): In the Linux kernel, the fadump CMA reservation logic for PowerPC was moved to run after initmem_init to fix an early init alignment issue. The root cause was that CMA_MIN_ALIGNMENT_BYTES could be as small as PAGE_SIZE during early boot because pageblock_order is not yet...

CVE-2024-56677

In the Linux kernel, the following vulnerability has been resolved: powerpc/fadump: Move fadumpcmainit to setuparch after initmeminit During early init CMAMINALIGNMENTBYTES can be PAGESIZE, since pageblockorder is still zero and it gets initialized later during initmeminit e.g. setuparch -...

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 CMA memory alignment issue caused by an improperly placed fadmumpcmainit in the powerpc/fadump module...

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 problem with dtlaccesslock not being a rwsemaphore in the powerpc/pseries subsystem...

CVE-2024-56701: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: powerpc/pseries: Fix dtlaccesslock to be a rwsemaphore The dtlaccesslock needs to be a rwsempahore, a sleeping lock, because the code calls kmalloc while holding it, which can sleep: echo 1 /proc/powerpc/vcpudispatchstats BUG:...