ghsa-p346-px87-vf2h
Vulnerability from github
Published
2024-10-29 03:31
Modified
2024-10-30 15:30
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:

net: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()

Commit a3c1e45156ad ("net: microchip: vcap: Fix use-after-free error in kunit test") fixed the use-after-free error, but introduced below memory leaks by removing necessary vcap_free_rule(), add it to fix it.

unreferenced object 0xffffff80ca58b700 (size 192):
  comm "kunit_try_catch", pid 1215, jiffies 4294898264
  hex dump (first 32 bytes):
    00 12 7a 00 05 00 00 00 0a 00 00 00 64 00 00 00  ..z.........d...
    00 00 00 00 00 00 00 00 00 04 0b cc 80 ff ff ff  ................
  backtrace (crc 9c09c3fe):
    [<0000000052a0be73>] kmemleak_alloc+0x34/0x40
    [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4
    [<0000000040a01b8d>] vcap_alloc_rule+0x3cc/0x9c4
    [<000000003fe86110>] vcap_api_encode_rule_test+0x1ac/0x16b0
    [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac
    [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec
    [<00000000c5d82c9a>] kthread+0x2e8/0x374
    [<00000000f4287308>] ret_from_fork+0x10/0x20
unreferenced object 0xffffff80cc0b0400 (size 64):
  comm "kunit_try_catch", pid 1215, jiffies 4294898265
  hex dump (first 32 bytes):
    80 04 0b cc 80 ff ff ff 18 b7 58 ca 80 ff ff ff  ..........X.....
    39 00 00 00 02 00 00 00 06 05 04 03 02 01 ff ff  9...............
  backtrace (crc daf014e9):
    [<0000000052a0be73>] kmemleak_alloc+0x34/0x40
    [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4
    [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528
    [<00000000dfdb1e81>] vcap_api_encode_rule_test+0x224/0x16b0
    [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac
    [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec
    [<00000000c5d82c9a>] kthread+0x2e8/0x374
    [<00000000f4287308>] ret_from_fork+0x10/0x20
unreferenced object 0xffffff80cc0b0700 (size 64):
  comm "kunit_try_catch", pid 1215, jiffies 4294898265
  hex dump (first 32 bytes):
    80 07 0b cc 80 ff ff ff 28 b7 58 ca 80 ff ff ff  ........(.X.....
    3c 00 00 00 00 00 00 00 01 2f 03 b3 ec ff ff ff  <......../......
  backtrace (crc 8d877792):
    [<0000000052a0be73>] kmemleak_alloc+0x34/0x40
    [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4
    [<000000006eadfab7>] vcap_rule_add_action+0x2d0/0x52c
    [<00000000323475d1>] vcap_api_encode_rule_test+0x4d4/0x16b0
    [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac
    [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec
    [<00000000c5d82c9a>] kthread+0x2e8/0x374
    [<00000000f4287308>] ret_from_fork+0x10/0x20
unreferenced object 0xffffff80cc0b0900 (size 64):
  comm "kunit_try_catch", pid 1215, jiffies 4294898266
  hex dump (first 32 bytes):
    80 09 0b cc 80 ff ff ff 80 06 0b cc 80 ff ff ff  ................
    7d 00 00 00 01 00 00 00 00 00 00 00 ff 00 00 00  }...............
  backtrace (crc 34181e56):
    [<0000000052a0be73>] kmemleak_alloc+0x34/0x40
    [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4
    [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528
    [<00000000991e3564>] vcap_val_rule+0xcf0/0x13e8
    [<00000000fc9868e5>] vcap_api_encode_rule_test+0x678/0x16b0
    [<00000000b3595fc4>] kunit_try_run_case+0x13c/0x3ac
    [<0000000010f5d2bf>] kunit_generic_run_threadfn_adapter+0x80/0xec
    [<00000000c5d82c9a>] kthread+0x2e8/0x374
    [<00000000f4287308>] ret_from_fork+0x10/0x20
unreferenced object 0xffffff80cc0b0980 (size 64):
  comm "kunit_try_catch", pid 1215, jiffies 4294898266
  hex dump (first 32 bytes):
    18 b7 58 ca 80 ff ff ff 00 09 0b cc 80 ff ff ff  ..X.............
    67 00 00 00 00 00 00 00 01 01 74 88 c0 ff ff ff  g.........t.....
  backtrace (crc 275fd9be):
    [<0000000052a0be73>] kmemleak_alloc+0x34/0x40
    [<0000000043605459>] __kmalloc_cache_noprof+0x26c/0x2f4
    [<000000000ff63fd4>] vcap_rule_add_key+0x2cc/0x528
    [<000000001396a1a2>] test_add_de

---truncated---

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50084"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401",
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-29T01:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: microchip: vcap api: Fix memory leaks in vcap_api_encode_rule_test()\n\nCommit a3c1e45156ad (\"net: microchip: vcap: Fix use-after-free error in\nkunit test\") fixed the use-after-free error, but introduced below\nmemory leaks by removing necessary vcap_free_rule(), add it to fix it.\n\n\tunreferenced object 0xffffff80ca58b700 (size 192):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898264\n\t  hex dump (first 32 bytes):\n\t    00 12 7a 00 05 00 00 00 0a 00 00 00 64 00 00 00  ..z.........d...\n\t    00 00 00 00 00 00 00 00 00 04 0b cc 80 ff ff ff  ................\n\t  backtrace (crc 9c09c3fe):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c0000000040a01b8d\u003e] vcap_alloc_rule+0x3cc/0x9c4\n\t    [\u003c000000003fe86110\u003e] vcap_api_encode_rule_test+0x1ac/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0400 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898265\n\t  hex dump (first 32 bytes):\n\t    80 04 0b cc 80 ff ff ff 18 b7 58 ca 80 ff ff ff  ..........X.....\n\t    39 00 00 00 02 00 00 00 06 05 04 03 02 01 ff ff  9...............\n\t  backtrace (crc daf014e9):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c00000000dfdb1e81\u003e] vcap_api_encode_rule_test+0x224/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0700 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898265\n\t  hex dump (first 32 bytes):\n\t    80 07 0b cc 80 ff ff ff 28 b7 58 ca 80 ff ff ff  ........(.X.....\n\t    3c 00 00 00 00 00 00 00 01 2f 03 b3 ec ff ff ff  \u003c......../......\n\t  backtrace (crc 8d877792):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000006eadfab7\u003e] vcap_rule_add_action+0x2d0/0x52c\n\t    [\u003c00000000323475d1\u003e] vcap_api_encode_rule_test+0x4d4/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0900 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898266\n\t  hex dump (first 32 bytes):\n\t    80 09 0b cc 80 ff ff ff 80 06 0b cc 80 ff ff ff  ................\n\t    7d 00 00 00 01 00 00 00 00 00 00 00 ff 00 00 00  }...............\n\t  backtrace (crc 34181e56):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c00000000991e3564\u003e] vcap_val_rule+0xcf0/0x13e8\n\t    [\u003c00000000fc9868e5\u003e] vcap_api_encode_rule_test+0x678/0x16b0\n\t    [\u003c00000000b3595fc4\u003e] kunit_try_run_case+0x13c/0x3ac\n\t    [\u003c0000000010f5d2bf\u003e] kunit_generic_run_threadfn_adapter+0x80/0xec\n\t    [\u003c00000000c5d82c9a\u003e] kthread+0x2e8/0x374\n\t    [\u003c00000000f4287308\u003e] ret_from_fork+0x10/0x20\n\tunreferenced object 0xffffff80cc0b0980 (size 64):\n\t  comm \"kunit_try_catch\", pid 1215, jiffies 4294898266\n\t  hex dump (first 32 bytes):\n\t    18 b7 58 ca 80 ff ff ff 00 09 0b cc 80 ff ff ff  ..X.............\n\t    67 00 00 00 00 00 00 00 01 01 74 88 c0 ff ff ff  g.........t.....\n\t  backtrace (crc 275fd9be):\n\t    [\u003c0000000052a0be73\u003e] kmemleak_alloc+0x34/0x40\n\t    [\u003c0000000043605459\u003e] __kmalloc_cache_noprof+0x26c/0x2f4\n\t    [\u003c000000000ff63fd4\u003e] vcap_rule_add_key+0x2cc/0x528\n\t    [\u003c000000001396a1a2\u003e] test_add_de\n---truncated---",
  "id": "GHSA-p346-px87-vf2h",
  "modified": "2024-10-30T15:30:46Z",
  "published": "2024-10-29T03:31:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50084"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/170792097bb21e5da77443b6a03d35489813eabe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20b5342de51bda794791e013b90754774003a515"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/217a3d98d1e9891a8b1438a27dfbc64ddf01f691"
    }
  ],
  "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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