{"cve":"CVE-2022-50057","nvd":{"published":"2025-06-18T11:15:34.387","modified":"2026-06-17T05:22:39.463","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Fix NULL deref in ntfs_update_mftmirr\n\nIf ntfs_fill_super() wasn't called then sbi->sb will be equal to NULL.\nCode should check this ptr before dereferencing. Syzbot hit this issue\nvia passing wrong mount param as can be seen from log below\n\nFail log:\nntfs3: Unknown parameter 'iochvrset'\ngeneral protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN\nKASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]\nCPU: 1 PID: 3589 Comm: syz-executor210 Not tainted 5.18.0-rc3-syzkaller-00016-gb253435746d9 #0\n...\nCall Trace:\n <TASK>\n put_ntfs+0x1ed/0x2a0 fs/ntfs3/super.c:463\n ntfs_fs_free+0x6a/0xe0 fs/ntfs3/super.c:1363\n put_fs_context+0x119/0x7a0 fs/fs_context.c:469\n do_new_mount+0x2b4/0xad0 fs/namespace.c:3044\n do_mount fs/namespace.c:3383 [inline]\n __do_sys_mount fs/namespace.c:3591 [inline]","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/321460ca3b55f48b3ba6008248264ab2bd6407d9","https://git.kernel.org/stable/c/8e8e1a84dac7a3d2b432162a70d7fb6a75960772","https://git.kernel.org/stable/c/bf6089dc01ba3194ab962105d7b85690843c256f"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:03:23.287444849+00:00"},"epss":{"cve":"CVE-2022-50057","score":0.00191,"percentile":0.08811,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}