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Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package kernel-tools-libs  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS10-KERNELTOOLSLIBS-18057365
  • published21 Jul 2026
  • disclosed19 Jul 2026
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Introduced: 19 Jul 2026

NewCVE-2026-63816  (opens in a new tab)
CWE-825  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools-libs package and not the kernel-tools-libs package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

f2fs: atomic: fix UAF issue on f2fs_inode_info.atomic_inode

  • ioctl(F2FS_IOC_GARBAGE_COLLECT_RANGE) - shrink
  • f2fs_gc
  • gc_data_segment
  • ra_data_block(cow_inode) - mapping = F2FS_I(inode)->atomic_inode->i_mapping : f2fs_is_cow_file(cow_inode) is true - f2fs_evict_inode(atomic_inode) - clear_inode_flag(fi->cow_inode, FI_COW_FILE) - F2FS_I(fi->cow_inode)->atomic_inode = NULL ... - truncate_inode_pages_final(atomic_inode)
- f2fs_grab_cache_folio(mapping)
: create folio in atomic_inode->mapping
                      - clear_inode(atomic_inode)
                       - BUG_ON(atomic_inode->i_data.nrpages)

We need to add a reference on fi->atomic_inode before using its mapping field during garbage collection, otherwise, it will cause UAF issue.