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Expired Pointer Dereference The advisory has been revoked - it doesn't affect any version of package libperf-devel  (opens in a new tab)

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  • Snyk IDSNYK-RHEL9-LIBPERFDEVEL-14658927
  • published25 Dec 2025
  • disclosed24 Dec 2025
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Introduced: 24 Dec 2025

CVE-2023-54062  (opens in a new tab)
CWE-825  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:9.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libperf-devel package and not the libperf-devel package as distributed by RHEL.

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

ext4: fix invalid free tracking in ext4_xattr_move_to_block()

In ext4_xattr_move_to_block(), the value of the extended attribute which we need to move to an external block may be allocated by kvmalloc() if the value is stored in an external inode. So at the end of the function the code tried to check if this was the case by testing entry->e_value_inum.

However, at this point, the pointer to the xattr entry is no longer valid, because it was removed from the original location where it had been stored. So we could end up calling kvfree() on a pointer which was not allocated by kvmalloc(); or we could also potentially leak memory by not freeing the buffer when it should be freed. Fix this by storing whether it should be freed in a separate variable.