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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-26832 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: mm: zswap: fix missing folio cleanup in writeback race path In zswap_writeback_entry(), after we get a folio from __read_swap_cache_async(), we grab the tree lock again to check that the swap entry was not invalidated and recycled. If it was, we delete the folio we just added to the swap cache and exit. However, __read_swap_cache_async() returns the folio locked when it is newly allocated, which is always true for this path, and the folio is ref'd. Make sure to unlock and put the folio before returning. This was discovered by code inspection, probably because this path handles a race condition that should not happen often, and the bug would not crash the system, it will only strand the folio indefinitely.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/14f1992430ef9e647b02aa8ca12c5bcb9a1dffea CVE, kernel.org Patch 
https://git.kernel.org/stable/c/6156277d1b26cb3fdb6fcbf0686ab78268571644 CVE, kernel.org Patch 
https://git.kernel.org/stable/c/e2891c763aa2cff74dd6b5e978411ccf0cf94abe CVE, kernel.org Patch 
https://git.kernel.org/stable/c/e3b63e966cac0bf78aaa1efede1827a252815a1d CVE, kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-459 Incomplete Cleanup cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-26832
NVD Published Date:
04/17/2024
NVD Last Modified:
04/02/2025
Source:
kernel.org