xfs: fix UAF in xchk_btree_check_block_owner

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UBUNTU-CVE-2026-23223

In the Linux kernel, the following vulnerability has been resolved: xfs: fix UAF in xchkbtreecheckblockowner We cannot dereference bs-cur when trying to determine if bs-cur aliases bs-sc-sa.bno,rmapcur after the latter has been freed. Fix this by sampling before type before any freeing could...

CVE-2026-23223

In the Linux kernel, the following vulnerability has been resolved: xfs: fix UAF in xchkbtreecheckblockowner We cannot dereference bs-cur when trying to determine if bs-cur aliases bs-sc-sa.bno,rmapcur after the latter has been freed. Fix this by sampling before type before any freeing could...

nilfs2: fix potential oob read in nilfs_btree_check_delete()

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SUSE CVE-2024-47757

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential oob read in nilfsbtreecheckdelete The function nilfsbtreecheckdelete, which checks whether degeneration to direct mapping occurs before deleting a b-tree entry, causes memory access outside the block buffer...

UBUNTU-CVE-2024-47757

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix potential oob read in nilfsbtreecheckdelete The function nilfsbtreecheckdelete, which checks whether degeneration to direct mapping occurs before deleting a b-tree entry, causes memory access outside the block buffer...

PT-2024-7576

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.58 Description The issue is related to the function nilfs btree check delete in the nilfs2 module of the Linux kernel, which can cause memory access outside the block buffer when retrieving the maximum key if...