Executive Summary

Informations
Name CVE-2025-21879 First vendor Publication 2025-03-27
Vendor Cve Last vendor Modification 2025-03-28

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:

btrfs: fix use-after-free on inode when scanning root during em shrinking

At btrfs_scan_root() we are accessing the inode's root (and fs_info) in a call to btrfs_fs_closing() after we have scheduled the inode for a delayed iput, and that can result in a use-after-free on the inode in case the cleaner kthread does the iput before we dereference the inode in the call to btrfs_fs_closing().

Fix this by using the fs_info stored already in a local variable instead of doing inode->root->fs_info.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21879

Sources (Detail)

https://git.kernel.org/stable/c/59f37036bb7ab3d554c24abc856aabca01126414
https://git.kernel.org/stable/c/5e79d26014f9386387575b9ed60d342057cee49b
Source Url

Alert History

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0
1
Date Informations
2025-03-29 00:20:42
  • Multiple Updates
2025-03-27 17:20:57
  • First insertion