CVE-2021-47632

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

DEBIAN-CVE-2021-47632

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

CVE-2021-47632

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

UBUNTU-CVE-2021-47640

In the Linux kernel, the following vulnerability has been resolved: powerpc/kasan: Fix early region not updated correctly The shadow's page table is not updated when PTERPNSHIFT is 24 and PAGESHIFT is 12. It not only causes false positives but also false negative as shown the following text. Fix ...

UBUNTU-CVE-2021-47632

In the Linux kernel, the following vulnerability has been resolved: powerpc/setmemory: Avoid spinlock recursion in changepageattr Commit 1f9ad21c3b38 "powerpc/mm: Implement setmemory routines" included a spinlock to changepageattr in order to safely perform the three step operations. But then...

CVE-2022-49666 powerpc/memhotplug: Add add_pages override for PPC

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add addpages override for PPC With commit ffa0b64e3be5 "powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit" the kernel now validate the addr against highmemory value. This results in the below BUGON with da...

CVE-2022-49666

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add addpages override for PPC With commit ffa0b64e3be5 "powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit" the kernel now validate the addr against highmemory value. This results in the below BUGON with da...

CVE-2022-49666

CVE-2022-49666 concerns the Linux kernel, specifically the powerpc/memhotplug path. The issue arises from an add_pages override for PPC, where the kernel began validating addresses against high_memory after commit ffa0b64e3be5 (powerpc: Fix virt_addr_valid() for 64-bit). This leads to a BUG_ON in...

CVE-2022-49666 powerpc/memhotplug: Add add_pages override for PPC

In the Linux kernel, the following vulnerability has been resolved: powerpc/memhotplug: Add addpages override for PPC With commit ffa0b64e3be5 "powerpc: Fix virtaddrvalid for 64-bit Book3E & 32-bit" the kernel now validate the addr against highmemory value. This results in the below BUGON with da...

CVE-2022-49623 powerpc/xive/spapr: correct bitmap allocation size

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive/spapr: correct bitmap allocation size kasan detects access beyond the end of the xibm-bitmap allocation: BUG: KASAN: slab-out-of-bounds in findfirstzerobit+0x40/0x140 Read of size 8 at addr c00000001d1d0118 by task...

CVE-2022-49623

CVE-2022-49623 : In the Linux kernel, the powerpc/xive/spapr path allocated a bitmap using bits units instead of the required long-sized units, causing a KASAN slab-out-of-bounds access on the 8-byte bitmap. The stack trace shows the access occurs during CPU setup for SMP, with the fault tied to ...

CVE-2022-49623 powerpc/xive/spapr: correct bitmap allocation size

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive/spapr: correct bitmap allocation size kasan detects access beyond the end of the xibm-bitmap allocation: BUG: KASAN: slab-out-of-bounds in findfirstzerobit+0x40/0x140 Read of size 8 at addr c00000001d1d0118 by task...

CVE-2022-49623 powerpc/xive/spapr: correct bitmap allocation size

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive/spapr: correct bitmap allocation size kasan detects access beyond the end of the xibm-bitmap allocation: BUG: KASAN: slab-out-of-bounds in findfirstzerobit+0x40/0x140 Read of size 8 at addr c00000001d1d0118 by task...

CVE-2022-49440 powerpc/rtas: Keep MSR[RI] set when calling RTAS

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Keep MSRRI set when calling RTAS RTAS runs in real mode MSRDR and MSRIR unset and in 32-bit big endian mode MSRSF,LE unset. The change in MSR is done in enterrtas in a relatively complex way, since the MSR value cou...

CVE-2022-49439 powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup

In the Linux kernel, the following vulnerability has been resolved: powerpc/fslrio: Fix refcount leak in fslriosetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...

CVE-2022-49439 powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup

In the Linux kernel, the following vulnerability has been resolved: powerpc/fslrio: Fix refcount leak in fslriosetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...

CVE-2022-49440 powerpc/rtas: Keep MSR[RI] set when calling RTAS

In the Linux kernel, the following vulnerability has been resolved: powerpc/rtas: Keep MSRRI set when calling RTAS RTAS runs in real mode MSRDR and MSRIR unset and in 32-bit big endian mode MSRSF,LE unset. The change in MSR is done in enterrtas in a relatively complex way, since the MSR value cou...

CVE-2022-49439 powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup

In the Linux kernel, the following vulnerability has been resolved: powerpc/fslrio: Fix refcount leak in fslriosetup ofparsephandle returns a node pointer with refcount incremented, we should use ofnodeput on it when not need anymore. Add missing ofnodeput to avoid refcount leak...

CVE-2022-49437

CVE-2022-49437 affects the Linux kernel (powerpc/xive) where a refcount leak occurs in xive_spapr_init due to a missing of_node_put() after of_find_compatible_node() returns a node with an incremented refcount. The provided description specifies that the fix adds the missing of_node_put() to avoi...

CVE-2022-49437

In the Linux kernel, the following vulnerability has been resolved: powerpc/xive: Fix refcount leak in xivespaprinit offindcompatiblenode returns a node pointer with refcount incremented, we should use ofnodeput on it when done. Add missing ofnodeput to avoid refcount leak...