GHSA-VWGJ-V875-V924

Vulnerability from github – Published: 2025-10-04 18:31 – Updated: 2025-10-04 18:31
VLAI?
Details

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

binfmt_misc: fix shift-out-of-bounds in check_special_flags

UBSAN reported a shift-out-of-bounds warning:

left shift of 1 by 31 places cannot be represented in type 'int' Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 ubsan_epilogue+0xa/0x44 lib/ubsan.c:151 __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322 check_special_flags fs/binfmt_misc.c:241 [inline] create_entry fs/binfmt_misc.c:456 [inline] bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654 vfs_write+0x11e/0x580 fs/read_write.c:582 ksys_write+0xcf/0x120 fs/read_write.c:637 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x4194e1

Since the type of Node's flags is unsigned long, we should define these macros with same type too.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-50497"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-04T16:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinfmt_misc: fix shift-out-of-bounds in check_special_flags\n\nUBSAN reported a shift-out-of-bounds warning:\n\n left shift of 1 by 31 places cannot be represented in type \u0027int\u0027\n Call Trace:\n  \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:88 [inline]\n  dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106\n  ubsan_epilogue+0xa/0x44 lib/ubsan.c:151\n  __ubsan_handle_shift_out_of_bounds+0x1e7/0x208 lib/ubsan.c:322\n  check_special_flags fs/binfmt_misc.c:241 [inline]\n  create_entry fs/binfmt_misc.c:456 [inline]\n  bm_register_write+0x9d3/0xa20 fs/binfmt_misc.c:654\n  vfs_write+0x11e/0x580 fs/read_write.c:582\n  ksys_write+0xcf/0x120 fs/read_write.c:637\n  do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n  do_syscall_64+0x34/0x80 arch/x86/entry/common.c:80\n  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n RIP: 0033:0x4194e1\n\nSince the type of Node\u0027s flags is unsigned long, we should define these\nmacros with same type too.",
  "id": "GHSA-vwgj-v875-v924",
  "modified": "2025-10-04T18:31:14Z",
  "published": "2025-10-04T18:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50497"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0f1a48994b3e516d5c7fd5d12204fdba7a604771"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/419b808504c26b3e3342365f34ccd0843e09a7f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a46bf558803dd2b959ca7435a5c143efe837217"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/88cea1676a09f7c45a1438153a126610c33b1590"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/97382a2639b1cd9631f6069061e9d7062cd2b098"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a651bb5ff997b9f02662bcdef3d8b4e6f0d79656"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a91123d4bda463469f68f0427adabf8108001f94"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dcbc51d31d0afbd45e830e3cf565a7b3ca7bf0d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ea6145370be8016755c43aca799815fc4b8c88b1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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