ghsa-2q7g-23rp-fjwm
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
ibmvnic: Use kernel helpers for hex dumps
Previously, when the driver was printing hex dumps, the buffer was cast to an 8 byte long and printed using string formatters. If the buffer size was not a multiple of 8 then a read buffer overflow was possible.
Therefore, create a new ibmvnic function that loops over a buffer and calls hex_dump_to_buffer instead.
This patch address KASAN reports like the one below: ibmvnic 30000003 env3: Login Buffer: ibmvnic 30000003 env3: 01000000af000000 <...> ibmvnic 30000003 env3: 2e6d62692e736261 ibmvnic 30000003 env3: 65050003006d6f63 ================================================================== BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic] Read of size 8 at addr c0000001331a9aa8 by task ip/17681 <...> Allocated by task 17681: <...> ibmvnic_login+0x2f0/0xffc [ibmvnic] ibmvnic_open+0x148/0x308 [ibmvnic] __dev_open+0x1ac/0x304 <...> The buggy address is located 168 bytes inside of allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf) <...> ================================================================= ibmvnic 30000003 env3: 000000000033766e
{
"affected": [],
"aliases": [
"CVE-2025-22104"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-16T15:16:04Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nibmvnic: Use kernel helpers for hex dumps\n\nPreviously, when the driver was printing hex dumps, the buffer was cast\nto an 8 byte long and printed using string formatters. If the buffer\nsize was not a multiple of 8 then a read buffer overflow was possible.\n\nTherefore, create a new ibmvnic function that loops over a buffer and\ncalls hex_dump_to_buffer instead.\n\nThis patch address KASAN reports like the one below:\n ibmvnic 30000003 env3: Login Buffer:\n ibmvnic 30000003 env3: 01000000af000000\n \u003c...\u003e\n ibmvnic 30000003 env3: 2e6d62692e736261\n ibmvnic 30000003 env3: 65050003006d6f63\n ==================================================================\n BUG: KASAN: slab-out-of-bounds in ibmvnic_login+0xacc/0xffc [ibmvnic]\n Read of size 8 at addr c0000001331a9aa8 by task ip/17681\n \u003c...\u003e\n Allocated by task 17681:\n \u003c...\u003e\n ibmvnic_login+0x2f0/0xffc [ibmvnic]\n ibmvnic_open+0x148/0x308 [ibmvnic]\n __dev_open+0x1ac/0x304\n \u003c...\u003e\n The buggy address is located 168 bytes inside of\n allocated 175-byte region [c0000001331a9a00, c0000001331a9aaf)\n \u003c...\u003e\n =================================================================\n ibmvnic 30000003 env3: 000000000033766e",
"id": "GHSA-2q7g-23rp-fjwm",
"modified": "2025-04-16T15:34:44Z",
"published": "2025-04-16T15:34:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22104"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ae6b1d6c1acee3a2000394d83ec9f1028321e207"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d93a6caab5d7d9b5ce034d75b1e1e993338e3852"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- 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.