ROS-20241028-03

The vulnerability of the quota component of the Linux kernel is related to the NULL pointer dereferencing in the functions dquotmarkdquotdirty, dquotallocspace, dquotallocinode, EXPORTSYMBOL, dquotclaimspacenodirty, dquotreclaimspacenodirty, dquotfreespace, dquotfreeinode, and dquottransfer in...

ROS-20241025-01

A vulnerability in the netlink component of the Linux kernel is related to the use of an uninitialized resource in the sizeof function in lib/nlattr.c. uninitialized resource in the sizeof function in lib/nlattr.c. Exploitation of the vulnerability could allow an attacker to cause a denial of...

CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

CVE-2024-50066

In the Linux kernel, the following vulnerability has been resolved: mm/mremap: fix movenormalpmd/retractpagetables race In mremap, movepagetables looks at the type of the PMD entry and the specified address range to figure out by which method the next chunk of page table entries should be moved. ...

CVE-2024-50066

CVE-2024-50066 is a Linux kernel race in mm/mremap where move_page_tables can race with retract_page_tables under THP/rmap locking. The flaw stems from reading the PMD type before acquiring rmap locks, potentially creating bogus PMD entries (e.g., mapping page 0 as a page table on x86) and enabli...

CVE-2024-49885

In the Linux kernel, the following vulnerability has been resolved: mm, slub: avoid zeroing kmalloc redzone Since commit 946fa0dbf2d8 "mm/slub: extend redzone check to extra allocated kmalloc space than requested", setting origsize treats the wasted space objectsize - origsize as a redzone. Howev...

CVE-2024-50017

In the Linux kernel, the following vulnerability has been resolved: x86/mm/identmap: Use gbpages only where full GB page should be mapped. When identpudinit uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K...

CVE-2022-48986

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix guppudrange for dax For dax pud, pudhuge returns true on x86. So the function works as long as hugetlb is configured. However, dax doesn't depend on hugetlb. Commit 414fd080d125 "mm/gup: fix guppmdrange for dax" fixed...

CVE-2024-49964

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix memfdpinfolios freehugepages leak memfdpinfolios followed by unpinfolios fails to restore freehugepages if the pages were not already faulted in, because the folio refcount for pages created by memfdallocfolio nev...

CVE-2022-48991

In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths Any codepath that zaps page table entries must invoke MMU notifiers to ensure that secondary MMUs like KVM don't keep accessing pages which aren't mapped anymore...

CVE-2022-48996 mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damonsysfssetschemes Commit da87878010e5 "mm/damon/sysfs: support online inputs update" made 'damonsysfssetschemes' to be called for running DAMON context,...

CVE-2022-48996

CVE-2022-48996 affects the Linux kernel DAMON subsystem. The vulnerability stems from damon_sysfs_set_schemes() making assumptions that the DAMON context has no schemes, leading to incorrect creation of schemes during online tuning and a higher memory footprint. The fix, described in the commit t...

CVE-2022-48991 mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

In the Linux kernel, the following vulnerability has been resolved: mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths Any codepath that zaps page table entries must invoke MMU notifiers to ensure that secondary MMUs like KVM don't keep accessing pages which aren't mapped anymore...

CVE-2022-48986

CVE-2022-48986 is a Linux kernel issue in the memory management path (mm/gup) affecting devmap-backed dax mappings. The vulnerability arises from gup_pud_range() returning true for pud_huge() on x86 when hugetlb is configured, while dax does not depend on hugetlb. The fixes, including commits 414...

CVE-2022-48986 mm/gup: fix gup_pud_range() for dax

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix guppudrange for dax For dax pud, pudhuge returns true on x86. So the function works as long as hugetlb is configured. However, dax doesn't depend on hugetlb. Commit 414fd080d125 "mm/gup: fix guppmdrange for dax" fixed...

CVE-2024-50017 x86/mm/ident_map: Use gbpages only where full GB page should be mapped.

In the Linux kernel, the following vulnerability has been resolved: x86/mm/identmap: Use gbpages only where full GB page should be mapped. When identpudinit uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K...

CVE-2024-50017 x86/mm/ident_map: Use gbpages only where full GB page should be mapped.

In the Linux kernel, the following vulnerability has been resolved: x86/mm/identmap: Use gbpages only where full GB page should be mapped. When identpudinit uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K...

CVE-2024-50017 x86/mm/ident_map: Use gbpages only where full GB page should be mapped.

In the Linux kernel, the following vulnerability has been resolved: x86/mm/identmap: Use gbpages only where full GB page should be mapped. When identpudinit uses only GB pages to create identity maps, large ranges of addresses not actually requested can be included in the resulting table; a 4K...

CVE-2024-50017

CVE-2024-50017 affects the Linux kernel’s identity-mapping code (x86/mm/ident_map). When ident_pud_init() creates identity maps using only GB pages, it can map large address ranges not requested (a 4K request could yield a full 1GB mapping), potentially including BIOS-reserved areas. This enables...

CVE-2024-49964

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix memfdpinfolios freehugepages leak memfdpinfolios followed by unpinfolios fails to restore freehugepages if the pages were not already faulted in, because the folio refcount for pages created by memfdallocfolio nev...