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CVE-2022-50779 (GCVE-0-2022-50779)

Vulnerability from cvelistv5 – Published: 2025-12-24 13:06 – Updated: 2026-05-11 19:25
VLAI
Title
orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()
Summary
In the Linux kernel, the following vulnerability has been resolved: orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string() When insert and remove the orangefs module, then debug_help_string will be leaked: unreferenced object 0xffff8881652ba000 (size 4096): comm "insmod", pid 1701, jiffies 4294893639 (age 13218.530s) hex dump (first 32 bytes): 43 6c 69 65 6e 74 20 44 65 62 75 67 20 4b 65 79 Client Debug Key 77 6f 72 64 73 20 61 72 65 20 75 6e 6b 6e 6f 77 words are unknow backtrace: [<0000000004e6f8e3>] kmalloc_trace+0x27/0xa0 [<0000000006f75d85>] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs] [<0000000091270a2a>] _sub_I_65535_1+0x57/0xf70 [crc_itu_t] [<000000004b1ee1a3>] do_one_initcall+0x87/0x2a0 [<000000001d0614ae>] do_init_module+0xdf/0x320 [<00000000efef068c>] load_module+0x2f98/0x3330 [<000000006533b44d>] __do_sys_finit_module+0x113/0x1b0 [<00000000a0da6f99>] do_syscall_64+0x35/0x80 [<000000007790b19b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 When remove the module, should always free debug_help_string. Should always free the allocated buffer when change the free_debug_help_string.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < 44d3eac26a5e5268d11cc342dc202b0d31505c0a (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < f2b8a6aac561a49fe02c99683c40a8b87a9f68fc (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < ba9d3b9cec20957fd86bb1bf525b4ea8b64b2dea (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < 2e7c09121064df93c58bbc49d3d0f608d3f584bd (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < b8affa0c6405ee968dcb6030bee2cf719a464752 (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < 39529b79b023713d4f2d3479dc0ca43ba99df726 (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < 3fc221d9a16339a913a0341d3efc7fef339073e1 (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < 19be31668552a198e887762e25bdcc560800ecb4 (git)
Affected: dc0336214eb07ee9de2a41dd4c81c744ffa419ac , < d23417a5bf3a3afc55de5442eb46e1e60458b0a1 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.9
Unaffected: 0 , < 4.9 (semver)
Unaffected: 4.9.337 , ≤ 4.9.* (semver)
Unaffected: 4.14.303 , ≤ 4.14.* (semver)
Unaffected: 4.19.270 , ≤ 4.19.* (semver)
Unaffected: 5.4.229 , ≤ 5.4.* (semver)
Unaffected: 5.10.163 , ≤ 5.10.* (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\norangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()\n\nWhen insert and remove the orangefs module, then debug_help_string will\nbe leaked:\n\n  unreferenced object 0xffff8881652ba000 (size 4096):\n    comm \"insmod\", pid 1701, jiffies 4294893639 (age 13218.530s)\n    hex dump (first 32 bytes):\n      43 6c 69 65 6e 74 20 44 65 62 75 67 20 4b 65 79  Client Debug Key\n      77 6f 72 64 73 20 61 72 65 20 75 6e 6b 6e 6f 77  words are unknow\n    backtrace:\n      [\u003c0000000004e6f8e3\u003e] kmalloc_trace+0x27/0xa0\n      [\u003c0000000006f75d85\u003e] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs]\n      [\u003c0000000091270a2a\u003e] _sub_I_65535_1+0x57/0xf70 [crc_itu_t]\n      [\u003c000000004b1ee1a3\u003e] do_one_initcall+0x87/0x2a0\n      [\u003c000000001d0614ae\u003e] do_init_module+0xdf/0x320\n      [\u003c00000000efef068c\u003e] load_module+0x2f98/0x3330\n      [\u003c000000006533b44d\u003e] __do_sys_finit_module+0x113/0x1b0\n      [\u003c00000000a0da6f99\u003e] do_syscall_64+0x35/0x80\n      [\u003c000000007790b19b\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nWhen remove the module, should always free debug_help_string. Should\nalways free the allocated buffer when change the free_debug_help_string."
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          "url": "https://git.kernel.org/stable/c/44d3eac26a5e5268d11cc342dc202b0d31505c0a"
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          "url": "https://git.kernel.org/stable/c/f2b8a6aac561a49fe02c99683c40a8b87a9f68fc"
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          "url": "https://git.kernel.org/stable/c/2e7c09121064df93c58bbc49d3d0f608d3f584bd"
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          "url": "https://git.kernel.org/stable/c/d23417a5bf3a3afc55de5442eb46e1e60458b0a1"
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      "title": "orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50779",
    "datePublished": "2025-12-24T13:06:07.873Z",
    "dateReserved": "2025-12-24T13:02:21.547Z",
    "dateUpdated": "2026-05-11T19:25:22.956Z",
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                    "versionType": "semver"
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                    "versionType": "semver"
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\norangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()\n\nWhen insert and remove the orangefs module, then debug_help_string will\nbe leaked:\n\n  unreferenced object 0xffff8881652ba000 (size 4096):\n    comm \"insmod\", pid 1701, jiffies 4294893639 (age 13218.530s)\n    hex dump (first 32 bytes):\n      43 6c 69 65 6e 74 20 44 65 62 75 67 20 4b 65 79  Client Debug Key\n      77 6f 72 64 73 20 61 72 65 20 75 6e 6b 6e 6f 77  words are unknow\n    backtrace:\n      [\u003c0000000004e6f8e3\u003e] kmalloc_trace+0x27/0xa0\n      [\u003c0000000006f75d85\u003e] orangefs_prepare_debugfs_help_string+0x5e/0x480 [orangefs]\n      [\u003c0000000091270a2a\u003e] _sub_I_65535_1+0x57/0xf70 [crc_itu_t]\n      [\u003c000000004b1ee1a3\u003e] do_one_initcall+0x87/0x2a0\n      [\u003c000000001d0614ae\u003e] do_init_module+0xdf/0x320\n      [\u003c00000000efef068c\u003e] load_module+0x2f98/0x3330\n      [\u003c000000006533b44d\u003e] __do_sys_finit_module+0x113/0x1b0\n      [\u003c00000000a0da6f99\u003e] do_syscall_64+0x35/0x80\n      [\u003c000000007790b19b\u003e] entry_SYSCALL_64_after_hwframe+0x46/0xb0\n\nWhen remove the module, should always free debug_help_string. Should\nalways free the allocated buffer when change the free_debug_help_string."
          }
        ],
        "id": "CVE-2022-50779",
        "lastModified": "2026-06-17T05:24:09.877",
        "metrics": {},
        "published": "2025-12-24T13:16:04.740",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/19be31668552a198e887762e25bdcc560800ecb4"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/2e7c09121064df93c58bbc49d3d0f608d3f584bd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/39529b79b023713d4f2d3479dc0ca43ba99df726"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/3fc221d9a16339a913a0341d3efc7fef339073e1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/44d3eac26a5e5268d11cc342dc202b0d31505c0a"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/b8affa0c6405ee968dcb6030bee2cf719a464752"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ba9d3b9cec20957fd86bb1bf525b4ea8b64b2dea"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/d23417a5bf3a3afc55de5442eb46e1e60458b0a1"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f2b8a6aac561a49fe02c99683c40a8b87a9f68fc"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-30T10:18:55+00:00",
      "cve": "CVE-2022-50779",
      "id": "CVE-2022-50779",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: orangefs: Fix kmemleak in orangefs_prepare_debugfs_help_string()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50779.json",
      "version": "3"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.