ghsa-mprr-p5pf-vhc3
Vulnerability from github
Published
2025-09-15 15:31
Modified
2025-09-15 15:31
Details

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Validate BOOT record_size

When the NTFS BOOT record_size field < 0, it represents a shift value. However, there is no sanity check on the shift result and the sbi->record_bits calculation through blksize_bits() assumes the size always > 256, which could lead to NPD while mounting a malformed NTFS image.

[ 318.675159] BUG: kernel NULL pointer dereference, address: 0000000000000158 [ 318.675682] #PF: supervisor read access in kernel mode [ 318.675869] #PF: error_code(0x0000) - not-present page [ 318.676246] PGD 0 P4D 0 [ 318.676502] Oops: 0000 [#1] PREEMPT SMP NOPTI [ 318.676934] CPU: 0 PID: 259 Comm: mount Not tainted 5.19.0 #5 [ 318.677289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 [ 318.678136] RIP: 0010:ni_find_attr+0x2d/0x1c0 [ 318.678656] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180 [ 318.679848] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246 [ 318.680104] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080 [ 318.680790] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 318.681679] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 318.682577] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080 [ 318.683015] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000 [ 318.683618] FS: 00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000 [ 318.684280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 318.684651] CR2: 0000000000000158 CR3: 0000000002e1a000 CR4: 00000000000006f0 [ 318.685623] Call Trace: [ 318.686607] [ 318.686872] ? ntfs_alloc_inode+0x1a/0x60 [ 318.687235] attr_load_runs_vcn+0x2b/0xa0 [ 318.687468] mi_read+0xbb/0x250 [ 318.687576] ntfs_iget5+0x114/0xd90 [ 318.687750] ntfs_fill_super+0x588/0x11b0 [ 318.687953] ? put_ntfs+0x130/0x130 [ 318.688065] ? snprintf+0x49/0x70 [ 318.688164] ? put_ntfs+0x130/0x130 [ 318.688256] get_tree_bdev+0x16a/0x260 [ 318.688407] vfs_get_tree+0x20/0xb0 [ 318.688519] path_mount+0x2dc/0x9b0 [ 318.688877] do_mount+0x74/0x90 [ 318.689142] __x64_sys_mount+0x89/0xd0 [ 318.689636] do_syscall_64+0x3b/0x90 [ 318.689998] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 318.690318] RIP: 0033:0x7fd9e133c48a [ 318.690687] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008 [ 318.691357] RSP: 002b:00007ffd374406c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 [ 318.691632] RAX: ffffffffffffffda RBX: 0000564d0b051080 RCX: 00007fd9e133c48a [ 318.691920] RDX: 0000564d0b051280 RSI: 0000564d0b051300 RDI: 0000564d0b0596a0 [ 318.692123] RBP: 0000000000000000 R08: 0000564d0b0512a0 R09: 0000000000000020 [ 318.692349] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000564d0b0596a0 [ 318.692673] R13: 0000564d0b051280 R14: 0000000000000000 R15: 00000000ffffffff [ 318.693007] [ 318.693271] Modules linked in: [ 318.693614] CR2: 0000000000000158 [ 318.694446] ---[ end trace 0000000000000000 ]--- [ 318.694779] RIP: 0010:ni_find_attr+0x2d/0x1c0 [ 318.694952] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180 [ 318.696042] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246 [ 318.696531] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080 [ 318.698114] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 318.699286] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 318.699795] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080 [ 318.700236] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000 [ 318.700973] FS: 00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000 [ ---truncated---

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50262"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-15T15:15:36Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Validate BOOT record_size\n\nWhen the NTFS BOOT record_size field \u003c 0, it represents a\nshift value. However, there is no sanity check on the shift result\nand the sbi-\u003erecord_bits calculation through blksize_bits() assumes\nthe size always \u003e 256, which could lead to NPD while mounting a\nmalformed NTFS image.\n\n[  318.675159] BUG: kernel NULL pointer dereference, address: 0000000000000158\n[  318.675682] #PF: supervisor read access in kernel mode\n[  318.675869] #PF: error_code(0x0000) - not-present page\n[  318.676246] PGD 0 P4D 0\n[  318.676502] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[  318.676934] CPU: 0 PID: 259 Comm: mount Not tainted 5.19.0 #5\n[  318.677289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[  318.678136] RIP: 0010:ni_find_attr+0x2d/0x1c0\n[  318.678656] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180\n[  318.679848] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246\n[  318.680104] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080\n[  318.680790] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[  318.681679] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n[  318.682577] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080\n[  318.683015] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000\n[  318.683618] FS:  00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000\n[  318.684280] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  318.684651] CR2: 0000000000000158 CR3: 0000000002e1a000 CR4: 00000000000006f0\n[  318.685623] Call Trace:\n[  318.686607]  \u003cTASK\u003e\n[  318.686872]  ? ntfs_alloc_inode+0x1a/0x60\n[  318.687235]  attr_load_runs_vcn+0x2b/0xa0\n[  318.687468]  mi_read+0xbb/0x250\n[  318.687576]  ntfs_iget5+0x114/0xd90\n[  318.687750]  ntfs_fill_super+0x588/0x11b0\n[  318.687953]  ? put_ntfs+0x130/0x130\n[  318.688065]  ? snprintf+0x49/0x70\n[  318.688164]  ? put_ntfs+0x130/0x130\n[  318.688256]  get_tree_bdev+0x16a/0x260\n[  318.688407]  vfs_get_tree+0x20/0xb0\n[  318.688519]  path_mount+0x2dc/0x9b0\n[  318.688877]  do_mount+0x74/0x90\n[  318.689142]  __x64_sys_mount+0x89/0xd0\n[  318.689636]  do_syscall_64+0x3b/0x90\n[  318.689998]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[  318.690318] RIP: 0033:0x7fd9e133c48a\n[  318.690687] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008\n[  318.691357] RSP: 002b:00007ffd374406c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5\n[  318.691632] RAX: ffffffffffffffda RBX: 0000564d0b051080 RCX: 00007fd9e133c48a\n[  318.691920] RDX: 0000564d0b051280 RSI: 0000564d0b051300 RDI: 0000564d0b0596a0\n[  318.692123] RBP: 0000000000000000 R08: 0000564d0b0512a0 R09: 0000000000000020\n[  318.692349] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000564d0b0596a0\n[  318.692673] R13: 0000564d0b051280 R14: 0000000000000000 R15: 00000000ffffffff\n[  318.693007]  \u003c/TASK\u003e\n[  318.693271] Modules linked in:\n[  318.693614] CR2: 0000000000000158\n[  318.694446] ---[ end trace 0000000000000000 ]---\n[  318.694779] RIP: 0010:ni_find_attr+0x2d/0x1c0\n[  318.694952] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180\n[  318.696042] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246\n[  318.696531] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080\n[  318.698114] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[  318.699286] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n[  318.699795] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080\n[  318.700236] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000\n[  318.700973] FS:  00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000\n[\n---truncated---",
  "id": "GHSA-mprr-p5pf-vhc3",
  "modified": "2025-09-15T15:31:25Z",
  "published": "2025-09-15T15:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50262"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b66046266690454dc04e6307bcff4a5605b42a1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8702e0dc987014f6d77740b693340f91344fd0ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/af7a195deae349f15baa765d000a5188920d61dd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db91a9c59162a9c56792ded88160442c0a2dabd5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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