FKIE_CVE-2022-50466

Vulnerability from fkie_nvd - Published: 2025-10-01 12:15 - Updated: 2026-01-16 19:15
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: fs/binfmt_elf: Fix memory leak in load_elf_binary() There is a memory leak reported by kmemleak: unreferenced object 0xffff88817104ef80 (size 224): comm "xfs_admin", pid 47165, jiffies 4298708825 (age 1333.476s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 60 a8 b3 00 81 88 ff ff a8 10 5a 00 81 88 ff ff `.........Z..... backtrace: [<ffffffff819171e1>] __alloc_file+0x21/0x250 [<ffffffff81918061>] alloc_empty_file+0x41/0xf0 [<ffffffff81948cda>] path_openat+0xea/0x3d30 [<ffffffff8194ec89>] do_filp_open+0x1b9/0x290 [<ffffffff8192660e>] do_open_execat+0xce/0x5b0 [<ffffffff81926b17>] open_exec+0x27/0x50 [<ffffffff81a69250>] load_elf_binary+0x510/0x3ed0 [<ffffffff81927759>] bprm_execve+0x599/0x1240 [<ffffffff8192a997>] do_execveat_common.isra.0+0x4c7/0x680 [<ffffffff8192b078>] __x64_sys_execve+0x88/0xb0 [<ffffffff83bbf0a5>] do_syscall_64+0x35/0x80 If "interp_elf_ex" fails to allocate memory in load_elf_binary(), the program will take the "out_free_ph" error handing path, resulting in "interpreter" file resource is not released. Fix it by adding an error handing path "out_free_file", which will release the file resource when "interp_elf_ex" failed to allocate memory.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/265b6fb780f57d10449a40e94219b28fa52479ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/594d2a14f2168c09b13b114c3d457aa939403e52Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/706215300411d48db6b51a5832b872632a84bbc1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/acd9b4914f1c5928c7ae8ebc623d6291eb1a573aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/binfmt_elf: Fix memory leak in load_elf_binary()\n\nThere is a memory leak reported by kmemleak:\n\n  unreferenced object 0xffff88817104ef80 (size 224):\n    comm \"xfs_admin\", pid 47165, jiffies 4298708825 (age 1333.476s)\n    hex dump (first 32 bytes):\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n      60 a8 b3 00 81 88 ff ff a8 10 5a 00 81 88 ff ff  `.........Z.....\n    backtrace:\n      [\u003cffffffff819171e1\u003e] __alloc_file+0x21/0x250\n      [\u003cffffffff81918061\u003e] alloc_empty_file+0x41/0xf0\n      [\u003cffffffff81948cda\u003e] path_openat+0xea/0x3d30\n      [\u003cffffffff8194ec89\u003e] do_filp_open+0x1b9/0x290\n      [\u003cffffffff8192660e\u003e] do_open_execat+0xce/0x5b0\n      [\u003cffffffff81926b17\u003e] open_exec+0x27/0x50\n      [\u003cffffffff81a69250\u003e] load_elf_binary+0x510/0x3ed0\n      [\u003cffffffff81927759\u003e] bprm_execve+0x599/0x1240\n      [\u003cffffffff8192a997\u003e] do_execveat_common.isra.0+0x4c7/0x680\n      [\u003cffffffff8192b078\u003e] __x64_sys_execve+0x88/0xb0\n      [\u003cffffffff83bbf0a5\u003e] do_syscall_64+0x35/0x80\n\nIf \"interp_elf_ex\" fails to allocate memory in load_elf_binary(),\nthe program will take the \"out_free_ph\" error handing path,\nresulting in \"interpreter\" file resource is not released.\n\nFix it by adding an error handing path \"out_free_file\", which will\nrelease the file resource when \"interp_elf_ex\" failed to allocate\nmemory."
    }
  ],
  "id": "CVE-2022-50466",
  "lastModified": "2026-01-16T19:15:14.517",
  "metrics": {
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      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-10-01T12:15:40.310",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-401"
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      "source": "nvd@nist.gov",
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}


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