CVE-2022-49274 Details
Description
In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix crash when mount with quota enabled There is a reported crash when mounting ocfs2 with quota enabled. RIP: 0010:ocfs2_qinfo_lock_res_init+0x44/0x50 [ocfs2] Call Trace: ocfs2_local_read_info+0xb9/0x6f0 [ocfs2] dquot_load_quota_sb+0x216/0x470 dquot_load_quota_inode+0x85/0x100 ocfs2_enable_quotas+0xa0/0x1c0 [ocfs2] ocfs2_fill_super.cold+0xc8/0x1bf [ocfs2] mount_bdev+0x185/0x1b0 legacy_get_tree+0x27/0x40 vfs_get_tree+0x25/0xb0 path_mount+0x465/0xac0 __x64_sys_mount+0x103/0x140 It is caused by when initializing dqi_gqlock, the corresponding dqi_type and dqi_sb are not properly initialized. This issue is introduced by commit 6c85c2c72819, which wants to avoid accessing uninitialized variables in error cases. So make global quota info properly initialized.
A vulnerability in the Linux kernel's OCFS2 file system can lead to a crash when the file system is mounted with quota enabled. The issue arises because certain quota-related variables are not properly initialized, causing a crash during the mounting process. This vulnerability was introduced by a commit that aimed to prevent the use of uninitialized variables in error situations, but inadvertently created a scenario where the file system could crash under specific conditions.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/01931e1c4e3de5d777253acae64c0e8fd071a1dd | kernel.org | Patch |
| https://git.kernel.org/stable/c/7c5312fdb1dcfdc1951b018669af88d5d6420b31 | kernel.org | Patch |
| https://git.kernel.org/stable/c/de19433423c7bedabbd4f9a25f7dbc62c5e78921 | kernel.org | Patch |
| https://git.kernel.org/stable/c/eda31f77317647b9fbf889779ee1fb6907651865 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-908 | Use of Uninitialized Resource | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.15, < 5.15.33 >= 5.16, < 5.16.19 >= 5.17, < 5.17.2 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 4, 2026 | CVE Modified | kernel.org |
| Jun 17, 2026 | CVE Modified | kernel.org |
| Sep 22, 2025 | Initial Analysis | [email protected] |
| Feb 26, 2025 | New CVE Received | kernel.org |