CVE-2024-49966

HIGH

Linux Kernel - Use-After-Free in ocfs2_global_read_info Error Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: cancel dqi_sync_work before freeing oinfo ocfs2_global_read_info() will initialize and schedule dqi_sync_work at the end, if error occurs after successfully reading global quota, it will trigger the following warning with CONFIG_DEBUG_OBJECTS_* enabled: ODEBUG: free active (active state 0) object: 00000000d8b0ce28 object type: timer_list hint: qsync_work_fn+0x0/0x16c This reports that there is an active delayed work when freeing oinfo in error handling, so cancel dqi_sync_work first. BTW, return status instead of -1 when .read_file_info fails.

Scores

CVSS v3 7.8
EPSS 0.0027
EPSS Percentile 18.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (30)
debian/debian_linux 11.0
linux/Kernel 2.6.29 - 4.19.323linux
linux/Kernel 4.20.0 - 5.4.285linux
linux/Kernel 5.11.0 - 5.15.168linux
linux/Kernel 5.16.0 - 6.1.113linux
linux/Kernel 5.5.0 - 5.10.227linux
linux/Kernel 6.11.0 - 6.11.3linux
linux/Kernel 6.2.0 - 6.6.55linux
linux/Kernel 6.7.0 - 6.10.14linux
Linux/Linux < 2.6.29
... and 20 more
Published Oct 21, 2024
Tracked Since Feb 18, 2026