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CVE-2022-49381 (GCVE-0-2022-49381)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2026-05-11 18:58
VLAI
Title
jffs2: fix memory leak in jffs2_do_fill_super
Summary
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_fill_super If jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff888105a65340 (size 64): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffff859c45e5>] kmem_cache_alloc_trace+0x475/0x8a0 [<ffffffff86160146>] jffs2_sum_init+0x96/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm "mount", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffff858579ba>] kmalloc_order+0xda/0x110 [<ffffffff85857a11>] kmalloc_order_trace+0x21/0x130 [<ffffffff859c2ed1>] __kmalloc+0x711/0x8a0 [<ffffffff86160189>] jffs2_sum_init+0xd9/0x1a0 [<ffffffff86140e25>] jffs2_do_mount_fs+0x745/0x2120 [<ffffffff86149fec>] jffs2_do_fill_super+0x35c/0x810 [<ffffffff8614aae9>] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:41 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 4ba7bbeab8009faf3a726e565d98816593ddd5b0 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 4da8763a3d2b684c773b72ed80fad40bc264bc40 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < d3a4fff1e7e408c32649030daa7c2c42a7e19a95 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 3252d327f977b14663a10967f3b0930d6c325687 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < ecc53e58596542791e82eff00702f8af7a313f70 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 69295267c481545f636b69ff341b8db75aa136b9 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < c14adb1cf70a984ed081c67e9d27bc3caad9537c (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.15
Unaffected: 0 , < 2.6.15 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_fill_super\n\nIf jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns\nan error, we can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff888105a65340 (size 64):\n  comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffff859c45e5\u003e] kmem_cache_alloc_trace+0x475/0x8a0\n    [\u003cffffffff86160146\u003e] jffs2_sum_init+0x96/0x1a0\n    [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n    [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n    [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n    [...]\nunreferenced object 0xffff8881bd7f0000 (size 65536):\n  comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n  hex dump (first 32 bytes):\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n  backtrace:\n    [\u003cffffffff858579ba\u003e] kmalloc_order+0xda/0x110\n    [\u003cffffffff85857a11\u003e] kmalloc_order_trace+0x21/0x130\n    [\u003cffffffff859c2ed1\u003e] __kmalloc+0x711/0x8a0\n    [\u003cffffffff86160189\u003e] jffs2_sum_init+0xd9/0x1a0\n    [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n    [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n    [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n    [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: se corrige la p\u00e9rdida de memoria en jffs2_do_fill_super Si jffs2_iget() o d_make_root() en jffs2_do_fill_super() devuelve un error, podemos observar el siguiente informe de kmemleak: -------------------------------------------- objeto sin referencia 0xffff888105a65340 (size 64): comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kmem_cache_alloc_trace+0x475/0x8a0 [] jffs2_sum_init+0x96/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] unreferenced object 0xffff8881bd7f0000 (size 65536): comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [] kmalloc_order+0xda/0x110 [] kmalloc_order_trace+0x21/0x130 [] __kmalloc+0x711/0x8a0 [] jffs2_sum_init+0xd9/0x1a0 [] jffs2_do_mount_fs+0x745/0x2120 [] jffs2_do_fill_super+0x35c/0x810 [] jffs2_fill_super+0x2b9/0x3b0 [...] -------------------------------------------- Esto se debe a que los recursos asignados en jffs2_sum_init() no se liberan. Llame a jffs2_sum_exit() para liberar estos recursos y resolver el problema."
          }
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            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_fill_super\n\nIf jffs2_iget() or d_make_root() in jffs2_do_fill_super() returns\nan error, we can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff888105a65340 (size 64):\n  comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffff859c45e5\u003e] kmem_cache_alloc_trace+0x475/0x8a0\n    [\u003cffffffff86160146\u003e] jffs2_sum_init+0x96/0x1a0\n    [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n    [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n    [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n    [...]\nunreferenced object 0xffff8881bd7f0000 (size 65536):\n  comm \"mount\", pid 710, jiffies 4302851558 (age 58.239s)\n  hex dump (first 32 bytes):\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n  backtrace:\n    [\u003cffffffff858579ba\u003e] kmalloc_order+0xda/0x110\n    [\u003cffffffff85857a11\u003e] kmalloc_order_trace+0x21/0x130\n    [\u003cffffffff859c2ed1\u003e] __kmalloc+0x711/0x8a0\n    [\u003cffffffff86160189\u003e] jffs2_sum_init+0xd9/0x1a0\n    [\u003cffffffff86140e25\u003e] jffs2_do_mount_fs+0x745/0x2120\n    [\u003cffffffff86149fec\u003e] jffs2_do_fill_super+0x35c/0x810\n    [\u003cffffffff8614aae9\u003e] jffs2_fill_super+0x2b9/0x3b0\n    [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:58:35.647Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/4ba7bbeab8009faf3a726e565d98816593ddd5b0"
            },
            {
              "url": "https://git.kernel.org/stable/c/4da8763a3d2b684c773b72ed80fad40bc264bc40"
            },
            {
              "url": "https://git.kernel.org/stable/c/28048a4cf3813b7cf5cc8cce629dfdc7951cb1c2"
            },
            {
              "url": "https://git.kernel.org/stable/c/d3a4fff1e7e408c32649030daa7c2c42a7e19a95"
            },
            {
              "url": "https://git.kernel.org/stable/c/3252d327f977b14663a10967f3b0930d6c325687"
            },
            {
              "url": "https://git.kernel.org/stable/c/ecc53e58596542791e82eff00702f8af7a313f70"
            },
            {
              "url": "https://git.kernel.org/stable/c/cf9db013e167bc8fc2ecd7a13ed97a37df0c9dab"
            },
            {
              "url": "https://git.kernel.org/stable/c/69295267c481545f636b69ff341b8db75aa136b9"
            },
            {
              "url": "https://git.kernel.org/stable/c/c14adb1cf70a984ed081c67e9d27bc3caad9537c"
            }
          ],
          "title": "jffs2: fix memory leak in jffs2_do_fill_super",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49381",
        "datePublished": "2025-02-26T02:11:18.812Z",
        "dateReserved": "2025-02-26T02:08:31.559Z",
        "dateUpdated": "2026-05-11T18:58:35.647Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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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