ghsa-83wq-r7qc-p24w
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
fs/ntfs3: Fix NULL deref in ntfs_update_mftmirr
If ntfs_fill_super() wasn't called then sbi->sb will be equal to NULL. Code should check this ptr before dereferencing. Syzbot hit this issue via passing wrong mount param as can be seen from log below
Fail log: ntfs3: Unknown parameter 'iochvrset' general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] CPU: 1 PID: 3589 Comm: syz-executor210 Not tainted 5.18.0-rc3-syzkaller-00016-gb253435746d9 #0 ... Call Trace: put_ntfs+0x1ed/0x2a0 fs/ntfs3/super.c:463 ntfs_fs_free+0x6a/0xe0 fs/ntfs3/super.c:1363 put_fs_context+0x119/0x7a0 fs/fs_context.c:469 do_new_mount+0x2b4/0xad0 fs/namespace.c:3044 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline]
{
"affected": [],
"aliases": [
"CVE-2022-50057"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:34Z",
"severity": null
},
"details": "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\u0027t called then sbi-\u003esb 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 \u0027iochvrset\u0027\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 \u003cTASK\u003e\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]",
"id": "GHSA-83wq-r7qc-p24w",
"modified": "2025-06-18T12:30:45Z",
"published": "2025-06-18T12:30:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50057"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/321460ca3b55f48b3ba6008248264ab2bd6407d9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e8e1a84dac7a3d2b432162a70d7fb6a75960772"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bf6089dc01ba3194ab962105d7b85690843c256f"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.