CVE-2022-50581 (GCVE-0-2022-50581)
Vulnerability from cvelistv5
Published
2025-10-22 13:23
Modified
2025-10-22 13:23
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: hfs: fix OOB Read in __hfs_brec_find Syzbot reported a OOB read bug: ================================================================== BUG: KASAN: slab-out-of-bounds in hfs_strcmp+0x117/0x190 fs/hfs/string.c:84 Read of size 1 at addr ffff88807eb62c4e by task kworker/u4:1/11 CPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted 6.1.0-rc6-syzkaller-00308-g644e9524388a #0 Workqueue: writeback wb_workfn (flush-7:0) Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106 print_address_description+0x74/0x340 mm/kasan/report.c:284 print_report+0x107/0x1f0 mm/kasan/report.c:395 kasan_report+0xcd/0x100 mm/kasan/report.c:495 hfs_strcmp+0x117/0x190 fs/hfs/string.c:84 __hfs_brec_find+0x213/0x5c0 fs/hfs/bfind.c:75 hfs_brec_find+0x276/0x520 fs/hfs/bfind.c:138 hfs_write_inode+0x34c/0xb40 fs/hfs/inode.c:462 write_inode fs/fs-writeback.c:1440 [inline] If the input inode of hfs_write_inode() is incorrect: struct inode struct hfs_inode_info struct hfs_cat_key struct hfs_name u8 len # len is greater than HFS_NAMELEN(31) which is the maximum length of an HFS filename OOB read occurred: hfs_write_inode() hfs_brec_find() __hfs_brec_find() hfs_cat_keycmp() hfs_strcmp() # OOB read occurred due to len is too large Fix this by adding a Check on len in hfs_write_inode() before calling hfs_brec_find().
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/hfs/inode.c"
          ],
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          "vendor": "Linux",
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          ]
        },
        {
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          "product": "Linux",
          "programFiles": [
            "fs/hfs/inode.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "status": "unaffected",
              "version": "4.9.337",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "4.14.303",
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            },
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              "status": "unaffected",
              "version": "4.19.270",
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              "version": "5.4.229",
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              "version": "5.10.163",
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              "version": "6.1.2",
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              "status": "unaffected",
              "version": "6.2",
              "versionType": "original_commit_for_fix"
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      "cpeApplicability": [
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          "nodes": [
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: fix OOB Read in __hfs_brec_find\n\nSyzbot reported a OOB read bug:\n\n==================================================================\nBUG: KASAN: slab-out-of-bounds in hfs_strcmp+0x117/0x190\nfs/hfs/string.c:84\nRead of size 1 at addr ffff88807eb62c4e by task kworker/u4:1/11\nCPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted\n6.1.0-rc6-syzkaller-00308-g644e9524388a #0\nWorkqueue: writeback wb_workfn (flush-7:0)\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\n print_address_description+0x74/0x340 mm/kasan/report.c:284\n print_report+0x107/0x1f0 mm/kasan/report.c:395\n kasan_report+0xcd/0x100 mm/kasan/report.c:495\n hfs_strcmp+0x117/0x190 fs/hfs/string.c:84\n __hfs_brec_find+0x213/0x5c0 fs/hfs/bfind.c:75\n hfs_brec_find+0x276/0x520 fs/hfs/bfind.c:138\n hfs_write_inode+0x34c/0xb40 fs/hfs/inode.c:462\n write_inode fs/fs-writeback.c:1440 [inline]\n\nIf the input inode of hfs_write_inode() is incorrect:\nstruct inode\n  struct hfs_inode_info\n    struct hfs_cat_key\n      struct hfs_name\n        u8 len # len is greater than HFS_NAMELEN(31) which is the\nmaximum length of an HFS filename\n\nOOB read occurred:\nhfs_write_inode()\n  hfs_brec_find()\n    __hfs_brec_find()\n      hfs_cat_keycmp()\n        hfs_strcmp() # OOB read occurred due to len is too large\n\nFix this by adding a Check on len in hfs_write_inode() before calling\nhfs_brec_find()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-22T13:23:33.421Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/8c40f2dbae603ef0bd21e87c63f54ec59fd88256"
        },
        {
          "url": "https://git.kernel.org/stable/c/c886c10a6eddb99923b315f42bf63f448883ef9a"
        },
        {
          "url": "https://git.kernel.org/stable/c/2344f17c0a89c181ab1a9fef57fd8c3bddfd6e30"
        },
        {
          "url": "https://git.kernel.org/stable/c/90103ccb6e60aa4efe48993d23d6a528472f2233"
        },
        {
          "url": "https://git.kernel.org/stable/c/4fd3a11804c8877ff11fec59c5c53f1635331e3e"
        },
        {
          "url": "https://git.kernel.org/stable/c/367296925c7625c3969d2a78d7a3e1dee161beb5"
        },
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          "url": "https://git.kernel.org/stable/c/e9e692917c6e10a7066c7a6d092dcdc3d4e329f3"
        },
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          "url": "https://git.kernel.org/stable/c/bfc9d8f27f89717431a6aecce42ae230b437433f"
        },
        {
          "url": "https://git.kernel.org/stable/c/8d824e69d9f3fa3121b2dda25053bae71e2460d2"
        }
      ],
      "title": "hfs: fix OOB Read in __hfs_brec_find",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50581",
    "datePublished": "2025-10-22T13:23:33.421Z",
    "dateReserved": "2025-10-22T13:20:23.762Z",
    "dateUpdated": "2025-10-22T13:23:33.421Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50581\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-22T14:15:43.147\",\"lastModified\":\"2025-10-22T21:12:48.953\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nhfs: fix OOB Read in __hfs_brec_find\\n\\nSyzbot reported a OOB read bug:\\n\\n==================================================================\\nBUG: KASAN: slab-out-of-bounds in hfs_strcmp+0x117/0x190\\nfs/hfs/string.c:84\\nRead of size 1 at addr ffff88807eb62c4e by task kworker/u4:1/11\\nCPU: 1 PID: 11 Comm: kworker/u4:1 Not tainted\\n6.1.0-rc6-syzkaller-00308-g644e9524388a #0\\nWorkqueue: writeback wb_workfn (flush-7:0)\\nCall Trace:\\n \u003cTASK\u003e\\n __dump_stack lib/dump_stack.c:88 [inline]\\n dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106\\n print_address_description+0x74/0x340 mm/kasan/report.c:284\\n print_report+0x107/0x1f0 mm/kasan/report.c:395\\n kasan_report+0xcd/0x100 mm/kasan/report.c:495\\n hfs_strcmp+0x117/0x190 fs/hfs/string.c:84\\n __hfs_brec_find+0x213/0x5c0 fs/hfs/bfind.c:75\\n hfs_brec_find+0x276/0x520 fs/hfs/bfind.c:138\\n hfs_write_inode+0x34c/0xb40 fs/hfs/inode.c:462\\n write_inode fs/fs-writeback.c:1440 [inline]\\n\\nIf the input inode of hfs_write_inode() is incorrect:\\nstruct inode\\n  struct hfs_inode_info\\n    struct hfs_cat_key\\n      struct hfs_name\\n        u8 len # len is greater than HFS_NAMELEN(31) which is the\\nmaximum length of an HFS filename\\n\\nOOB read occurred:\\nhfs_write_inode()\\n  hfs_brec_find()\\n    __hfs_brec_find()\\n      hfs_cat_keycmp()\\n        hfs_strcmp() # OOB read occurred due to len is too large\\n\\nFix this by adding a Check on len in hfs_write_inode() before calling\\nhfs_brec_find().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2344f17c0a89c181ab1a9fef57fd8c3bddfd6e30\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/367296925c7625c3969d2a78d7a3e1dee161beb5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4fd3a11804c8877ff11fec59c5c53f1635331e3e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8c40f2dbae603ef0bd21e87c63f54ec59fd88256\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8d824e69d9f3fa3121b2dda25053bae71e2460d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/90103ccb6e60aa4efe48993d23d6a528472f2233\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/bfc9d8f27f89717431a6aecce42ae230b437433f\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c886c10a6eddb99923b315f42bf63f448883ef9a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e9e692917c6e10a7066c7a6d092dcdc3d4e329f3\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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