What is CVE-2022-49274?

CVE-2022-49274 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2025-02-26.

How severe is CVE-2022-49274?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Linux

CVE-2022-49274

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.

EPSS: 0.003 (17.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Linux — versions 6c85c2c728193d19d6a908ae9fb312d0325e65ca, 5.15, 0
Linux Linux_kernel

Weakness classification (CWE)

CWE-908 — Use of Uninitialized Resource

References

416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)
416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Patch)

Frequently asked questions

What is CVE-2022-49274?: CVE-2022-49274 is a high-severity vulnerability in Linux, classified under Use of Uninitialized Resource. CVSS score: 7.8/10. Published 2025-02-26.
How severe is CVE-2022-49274?: High severity. CVSS v3 base score is 7.8 out of 10.