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CVE-2022-50724 (GCVE-0-2022-50724)

Vulnerability from cvelistv5 – Published: 2025-12-24 12:22 – Updated: 2026-05-23 15:24
VLAI
Title
regulator: core: fix resource leak in regulator_register()
Summary
In the Linux kernel, the following vulnerability has been resolved: regulator: core: fix resource leak in regulator_register() I got some resource leak reports while doing fault injection test: OF: ERROR: memory leak, expected refcount 1 instead of 100, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node /i2c/pmic@64/regulators/buck1 unreferenced object 0xffff88810deea000 (size 512): comm "490-i2c-rt5190a", pid 253, jiffies 4294859840 (age 5061.046s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff a0 1e 00 a1 ff ff ff ff ................ backtrace: [<00000000d78541e2>] kmalloc_trace+0x21/0x110 [<00000000b343d153>] device_private_init+0x32/0xd0 [<00000000be1f0c70>] device_add+0xb2d/0x1030 [<00000000e3e6344d>] regulator_register+0xaf2/0x12a0 [<00000000e2f5e754>] devm_regulator_register+0x57/0xb0 [<000000008b898197>] rt5190a_probe+0x52a/0x861 [rt5190a_regulator] unreferenced object 0xffff88810b617b80 (size 32): comm "490-i2c-rt5190a", pid 253, jiffies 4294859904 (age 5060.983s) hex dump (first 32 bytes): 72 65 67 75 6c 61 74 6f 72 2e 32 38 36 38 2d 53 regulator.2868-S 55 50 50 4c 59 00 ff ff 29 00 00 00 2b 00 00 00 UPPLY...)...+... backtrace: [<000000009da9280d>] __kmalloc_node_track_caller+0x44/0x1b0 [<0000000025c6a4e5>] kstrdup+0x3a/0x70 [<00000000790efb69>] create_regulator+0xc0/0x4e0 [<0000000005ed203a>] regulator_resolve_supply+0x2d4/0x440 [<0000000045796214>] regulator_register+0x10b3/0x12a0 [<00000000e2f5e754>] devm_regulator_register+0x57/0xb0 [<000000008b898197>] rt5190a_probe+0x52a/0x861 [rt5190a_regulator] After calling regulator_resolve_supply(), the 'rdev->supply' is set by set_supply(), after this set, in the error path, the resources need be released, so call regulator_put() to avoid the leaks.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0120ec32a7774b5061ced1a9a7ff833edd8b4cb6 , < 35593d60b1622834984c43add7646d4069671aa9 (git)
Affected: aea6cb99703e17019e025aa71643b4d3e0a24413 , < 6a03c31d08f95dca9633a552de167b9e625833a8 (git)
Affected: aea6cb99703e17019e025aa71643b4d3e0a24413 , < c4c64d8abd656b9807b63178750fa91454602b86 (git)
Affected: aea6cb99703e17019e025aa71643b4d3e0a24413 , < 90b713aadc1240bf2dd03d610d6c1d016a9123a2 (git)
Affected: aea6cb99703e17019e025aa71643b4d3e0a24413 , < f86b2f216636790d5922458578825e4628fb570f (git)
Affected: aea6cb99703e17019e025aa71643b4d3e0a24413 , < ba62319a42c50e6254e98b3f316464fac8e77968 (git)
Affected: 1d58235c062309d51660fd04182d7a8ab6a48ad6 (git)
Affected: 167c3b1f9793a1fb23e75e693f078420850306d4 (git)
Affected: 3fc99e38fdbf6b693693f861aa55a50a74c2d202 (git)
Affected: 96c6b5d5775637b3095ef934f871044811fd4db7 (git)
Affected: f58ce31b05b4ca0c200a5cbe4724efe279405095 (git)
Affected: 5.4.73 , < 5.4.229 (semver)
Affected: 4.9.241 , < 4.10 (semver)
Affected: 4.14.203 , < 4.15 (semver)
Affected: 4.19.153 , < 4.20 (semver)
Affected: 5.8.17 , < 5.9 (semver)
Affected: 5.9.2 , < 5.10 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (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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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: core: fix resource leak in regulator_register()\n\nI got some resource leak reports while doing fault injection test:\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 100,\n  of_node_get()/of_node_put() unbalanced - destroy cset entry:\n  attach overlay node /i2c/pmic@64/regulators/buck1\n\nunreferenced object 0xffff88810deea000 (size 512):\n  comm \"490-i2c-rt5190a\", pid 253, jiffies 4294859840 (age 5061.046s)\n  hex dump (first 32 bytes):\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\n    ff ff ff ff ff ff ff ff a0 1e 00 a1 ff ff ff ff  ................\n  backtrace:\n    [\u003c00000000d78541e2\u003e] kmalloc_trace+0x21/0x110\n    [\u003c00000000b343d153\u003e] device_private_init+0x32/0xd0\n    [\u003c00000000be1f0c70\u003e] device_add+0xb2d/0x1030\n    [\u003c00000000e3e6344d\u003e] regulator_register+0xaf2/0x12a0\n    [\u003c00000000e2f5e754\u003e] devm_regulator_register+0x57/0xb0\n    [\u003c000000008b898197\u003e] rt5190a_probe+0x52a/0x861 [rt5190a_regulator]\n\nunreferenced object 0xffff88810b617b80 (size 32):\n  comm \"490-i2c-rt5190a\", pid 253, jiffies 4294859904 (age 5060.983s)\n  hex dump (first 32 bytes):\n    72 65 67 75 6c 61 74 6f 72 2e 32 38 36 38 2d 53  regulator.2868-S\n    55 50 50 4c 59 00 ff ff 29 00 00 00 2b 00 00 00  UPPLY...)...+...\n  backtrace:\n    [\u003c000000009da9280d\u003e] __kmalloc_node_track_caller+0x44/0x1b0\n    [\u003c0000000025c6a4e5\u003e] kstrdup+0x3a/0x70\n    [\u003c00000000790efb69\u003e] create_regulator+0xc0/0x4e0\n    [\u003c0000000005ed203a\u003e] regulator_resolve_supply+0x2d4/0x440\n    [\u003c0000000045796214\u003e] regulator_register+0x10b3/0x12a0\n    [\u003c00000000e2f5e754\u003e] devm_regulator_register+0x57/0xb0\n    [\u003c000000008b898197\u003e] rt5190a_probe+0x52a/0x861 [rt5190a_regulator]\n\nAfter calling regulator_resolve_supply(), the \u0027rdev-\u003esupply\u0027 is set\nby set_supply(), after this set, in the error path, the resources\nneed be released, so call regulator_put() to avoid the leaks."
        }
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          "url": "https://git.kernel.org/stable/c/35593d60b1622834984c43add7646d4069671aa9"
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      "title": "regulator: core: fix resource leak in regulator_register()",
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    "dateUpdated": "2026-05-23T15:24:58.423Z",
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: core: fix resource leak in regulator_register()\n\nI got some resource leak reports while doing fault injection test:\n\n  OF: ERROR: memory leak, expected refcount 1 instead of 100,\n  of_node_get()/of_node_put() unbalanced - destroy cset entry:\n  attach overlay node /i2c/pmic@64/regulators/buck1\n\nunreferenced object 0xffff88810deea000 (size 512):\n  comm \"490-i2c-rt5190a\", pid 253, jiffies 4294859840 (age 5061.046s)\n  hex dump (first 32 bytes):\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\n    ff ff ff ff ff ff ff ff a0 1e 00 a1 ff ff ff ff  ................\n  backtrace:\n    [\u003c00000000d78541e2\u003e] kmalloc_trace+0x21/0x110\n    [\u003c00000000b343d153\u003e] device_private_init+0x32/0xd0\n    [\u003c00000000be1f0c70\u003e] device_add+0xb2d/0x1030\n    [\u003c00000000e3e6344d\u003e] regulator_register+0xaf2/0x12a0\n    [\u003c00000000e2f5e754\u003e] devm_regulator_register+0x57/0xb0\n    [\u003c000000008b898197\u003e] rt5190a_probe+0x52a/0x861 [rt5190a_regulator]\n\nunreferenced object 0xffff88810b617b80 (size 32):\n  comm \"490-i2c-rt5190a\", pid 253, jiffies 4294859904 (age 5060.983s)\n  hex dump (first 32 bytes):\n    72 65 67 75 6c 61 74 6f 72 2e 32 38 36 38 2d 53  regulator.2868-S\n    55 50 50 4c 59 00 ff ff 29 00 00 00 2b 00 00 00  UPPLY...)...+...\n  backtrace:\n    [\u003c000000009da9280d\u003e] __kmalloc_node_track_caller+0x44/0x1b0\n    [\u003c0000000025c6a4e5\u003e] kstrdup+0x3a/0x70\n    [\u003c00000000790efb69\u003e] create_regulator+0xc0/0x4e0\n    [\u003c0000000005ed203a\u003e] regulator_resolve_supply+0x2d4/0x440\n    [\u003c0000000045796214\u003e] regulator_register+0x10b3/0x12a0\n    [\u003c00000000e2f5e754\u003e] devm_regulator_register+0x57/0xb0\n    [\u003c000000008b898197\u003e] rt5190a_probe+0x52a/0x861 [rt5190a_regulator]\n\nAfter calling regulator_resolve_supply(), the \u0027rdev-\u003esupply\u0027 is set\nby set_supply(), after this set, in the error path, the resources\nneed be released, so call regulator_put() to avoid the leaks."
          }
        ],
        "id": "CVE-2022-50724",
        "lastModified": "2026-06-17T05:24:04.190",
        "metrics": {},
        "published": "2025-12-24T13:15:59.057",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/35593d60b1622834984c43add7646d4069671aa9"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/6a03c31d08f95dca9633a552de167b9e625833a8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/90b713aadc1240bf2dd03d610d6c1d016a9123a2"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/ba62319a42c50e6254e98b3f316464fac8e77968"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/c4c64d8abd656b9807b63178750fa91454602b86"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f86b2f216636790d5922458578825e4628fb570f"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-07-21T19:09:23+00:00",
      "cve": "CVE-2022-50724",
      "id": "CVE-2022-50724",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:known_affected": "122",
      "product_status:known_not_affected": "152",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: Linux kernel: Resource leak in regulator_register can cause system unavailability",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-50724.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T01:23:51Z",
      "cve": "CVE-2022-50724",
      "id": "CVE-2022-50724",
      "initial_release_date": "2025-12-25T01:04:54Z",
      "product_status:known_affected": "427",
      "product_status:known_not_affected": "361",
      "product_status:recommended": "225",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2022-50724",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-50724.json",
      "version": "27"
    }
  }
}



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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.

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