ghsa-cp24-c7w4-6gh4
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
net: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()
During driver initialization, the pointer of card info, i.e. the variable 'ci' is required. However, the definition of 'com20020pci_id_table' reveals that this field is empty for some devices, which will cause null pointer dereference when initializing these devices.
The following log reveals it:
[ 3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] [ 3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci] [ 3.975181] Call Trace: [ 3.976208] local_pci_probe+0x13f/0x210 [ 3.977248] pci_device_probe+0x34c/0x6d0 [ 3.977255] ? pci_uevent+0x470/0x470 [ 3.978265] really_probe+0x24c/0x8d0 [ 3.978273] __driver_probe_device+0x1b3/0x280 [ 3.979288] driver_probe_device+0x50/0x370
Fix this by checking whether the 'ci' is a null pointer first.
{
"affected": [],
"aliases": [
"CVE-2022-48908"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-22T02:15:05Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: arcnet: com20020: Fix null-ptr-deref in com20020pci_probe()\n\nDuring driver initialization, the pointer of card info, i.e. the\nvariable \u0027ci\u0027 is required. However, the definition of\n\u0027com20020pci_id_table\u0027 reveals that this field is empty for some\ndevices, which will cause null pointer dereference when initializing\nthese devices.\n\nThe following log reveals it:\n\n[ 3.973806] KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\n[ 3.973819] RIP: 0010:com20020pci_probe+0x18d/0x13e0 [com20020_pci]\n[ 3.975181] Call Trace:\n[ 3.976208] local_pci_probe+0x13f/0x210\n[ 3.977248] pci_device_probe+0x34c/0x6d0\n[ 3.977255] ? pci_uevent+0x470/0x470\n[ 3.978265] really_probe+0x24c/0x8d0\n[ 3.978273] __driver_probe_device+0x1b3/0x280\n[ 3.979288] driver_probe_device+0x50/0x370\n\nFix this by checking whether the \u0027ci\u0027 is a null pointer first.",
"id": "GHSA-cp24-c7w4-6gh4",
"modified": "2024-09-12T15:32:59Z",
"published": "2024-08-22T03:31:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48908"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5f394102ee27dbf051a4e283390cd8d1759dacea"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e3bc7c5bbf87e86e9cd652ca2a9166942d86206"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b1ee6b9340a38bdb9e5c90f0eac5b22b122c3049"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b838add93e1dd98210482dc433768daaf752bdef"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/bd6f1fd5d33dfe5d1b4f2502d3694a7cc13f166d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ca0bdff4249a644f2ca7a49d410d95b8dacf1f72"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e50c589678e50f8d574612e473ca60ef45190896"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ea372aab54903310756217d81610901a8e66cb7d"
}
],
"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"
}
]
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.