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-2024-49872

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix memfdpinfolios alloc race panic If memfdpinfolios tries to create a hugetlb page, but someone else already did, then folio gets the value -EEXIST here: folio = memfdallocfoliomemfd, startidx; if ISERRfolio ret =...

CVE-2024-50022 device-dax: correct pgoff align in dax_set_mapping()

In the Linux kernel, the following vulnerability has been resolved: device-dax: correct pgoff align in daxsetmapping pgoff should be aligned using ALIGNDOWN instead of ALIGN. Otherwise, vmf-address not aligned to faultsize will be aligned to the next alignment, that can result in memory failure...

DEBIAN-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-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...

DEBIAN-CVE-2024-49934

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

DEBIAN-CVE-2024-49872

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix memfdpinfolios alloc race panic If memfdpinfolios tries to create a hugetlb page, but someone else already did, then folio gets the value -EEXIST here: folio = memfdallocfoliomemfd, startidx; if ISERRfolio ret =...

UBUNTU-CVE-2024-49934

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

UBUNTU-CVE-2024-49872

In the Linux kernel, the following vulnerability has been resolved: mm/gup: fix memfdpinfolios alloc race panic If memfdpinfolios tries to create a hugetlb page, but someone else already did, then folio gets the value -EEXIST here: folio = memfdallocfoliomemfd, startidx; if ISERRfolio ret =...

CVE-2024-49964 mm/hugetlb: fix memfd_pin_folios free_huge_pages leak

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-2024-49964

The CVE-2024-49964 issue affects the Linux kernel’s hugetlb path: memfd_pin_folios + unpin_folios could fail to restore free_huge_pages for pages not faulted in due to folio refcounts not reaching zero. The root cause was that folio_ref_unfreeze/folio_try_get/hugetlb_add_to_page_cache interaction...

CVE-2024-49964 mm/hugetlb: fix memfd_pin_folios free_huge_pages leak

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-2024-49934 fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

CVE-2024-49934 fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

CVE-2024-49934 fs/inode: Prevent dump_mapping() accessing invalid dentry.d_name.name

In the Linux kernel, the following vulnerability has been resolved: fs/inode: Prevent dumpmapping accessing invalid dentry.dname.name It's observed that a crash occurs during hot-remove a memory device, in which user is accessing the hugetlb. See calltrace as following: ------------ cut here...

CVE-2024-49873 mm/filemap: fix filemap_get_folios_contig THP panic

In the Linux kernel, the following vulnerability has been resolved: mm/filemap: fix filemapgetfolioscontig THP panic Patch series "memfd-pin huge page fixes". Fix multiple bugs that occur when using memfdpinfolios with hugetlb pages and THP. The hugetlb bugs only bite when the page is not yet...

CVE-2024-47676

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlbfault. This happens because vmfanonprepare could drop the per-VMA lock and allow the current VMA to be freed before hugetlbvmaunlockread is...

DEBIAN-CVE-2024-47676

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlbfault. This happens because vmfanonprepare could drop the per-VMA lock and allow the current VMA to be freed before hugetlbvmaunlockread is...

UBUNTU-CVE-2024-47676

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlbfault. This happens because vmfanonprepare could drop the per-VMA lock and allow the current VMA to be freed before hugetlbvmaunlockread is...

CVE-2024-47676 mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb.c: fix UAF of vma in hugetlb fault pathway Syzbot reports a UAF in hugetlbfault. This happens because vmfanonprepare could drop the per-VMA lock and allow the current VMA to be freed before hugetlbvmaunlockread is...