CVE-2024-49966
CVE-2024-49966 is a high-severity vulnerability in Debian Debian Linux with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (18th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-43645
- Weakness: CWE-416
- Affected product: Debian Debian Linux
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-49966?
- 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.
- How severe is CVE-2024-49966?
- CVE-2024-49966 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-49966 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-49966?
- CVE-2024-49966 primarily affects Debian Debian Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-49966?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-49966 have an EU (EUVD) identifier?
- Yes. CVE-2024-49966 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-43645.
- When was CVE-2024-49966 published?
- CVE-2024-49966 was published on 2024-10-21 and last updated on 2026-06-17.
References
- https://git.kernel.org/stable/c/0d707a33c84b371cb66120e198eed3374726ddd8
- https://git.kernel.org/stable/c/14114d8148db07e7946fb06b56a50cfa425e26c7
- https://git.kernel.org/stable/c/35fccce29feb3706f649726d410122dd81b92c18
- https://git.kernel.org/stable/c/4173d1277c00baeedaaca76783e98b8fd0e3c08d
- https://git.kernel.org/stable/c/89043e7ed63c7fc141e68ea5a79758ed24b6c699
- https://git.kernel.org/stable/c/a4346c04d055bf7e184c18a73dbd23b6a9811118
- https://git.kernel.org/stable/c/bbf41277df8b33fbedf4750a9300c147e8f104eb
- https://git.kernel.org/stable/c/ef768020366f47d23f39c4f57bcb03af6d1e24b3
- https://git.kernel.org/stable/c/fc5cc716dfbdc5fd5f373ff3b51358174cf88bfc
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
Affected products (2)
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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