ghsa-rfv9-hghg-chfq
Vulnerability from github
Published
2025-04-14 18:31
Modified
2025-04-14 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

jffs2: fix memory leak in jffs2_do_mount_fs

If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report:

unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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+0x584/0x880 [] jffs2_sum_init+0x86/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) 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+0x6b9/0x910 [] jffs2_sum_init+0xd7/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...]

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49277"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:04Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_mount_fs\n\nIf jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,\nwe can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff88811b25a640 (size 64):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\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    [\u003cffffffffa493be24\u003e] kmem_cache_alloc_trace+0x584/0x880\n    [\u003cffffffffa5423a06\u003e] jffs2_sum_init+0x86/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\nunreferenced object 0xffff88812c760000 (size 65536):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\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    [\u003cffffffffa493a449\u003e] __kmalloc+0x6b9/0x910\n    [\u003cffffffffa5423a57\u003e] jffs2_sum_init+0xd7/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\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.",
  "id": "GHSA-rfv9-hghg-chfq",
  "modified": "2025-04-14T18:31:48Z",
  "published": "2025-04-14T18:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49277"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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