Executive Summary

Informations
Name CVE-2024-26832 First vendor Publication 2024-04-17
Vendor Cve Last vendor Modification 2024-04-17

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
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Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-26832

Sources (Detail)

https://git.kernel.org/stable/c/14f1992430ef9e647b02aa8ca12c5bcb9a1dffea
https://git.kernel.org/stable/c/6156277d1b26cb3fdb6fcbf0686ab78268571644
https://git.kernel.org/stable/c/e2891c763aa2cff74dd6b5e978411ccf0cf94abe
https://git.kernel.org/stable/c/e3b63e966cac0bf78aaa1efede1827a252815a1d
Source Url

Alert History

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0
Date Informations
2024-04-17 17:28:37
  • First insertion