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Case File

CVE-2019-19448

HIGH · CVSS 7.8 EPSS 2.14% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2019-12-08 · Last synced 2026-08-04

CyberRota Analysis

AI analysis pending.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links
github.com ↗

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2019-19448
Severity
HIGH
CVSS
7.8
EPSS
2.14%
Linux

Original NVD Description

In the Linux kernel 5.0.21 and 5.3.11, mounting a crafted btrfs filesystem image, performing some operations, and then making a syncfs system call can lead to a use-after-free in try_merge_free_space in fs/btrfs/free-space-cache.c because the pointer to a left data structure can be the same as the pointer to a right data structure.