GHSA-77PH-FPQV-C298
Vulnerability from github – Published: 2026-03-25 12:30 – Updated: 2026-04-23 21:31In the Linux kernel, the following vulnerability has been resolved:
nfc: nci: free skb on nci_transceive early error paths
nci_transceive() takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it.
Due to issues clearing NCI_DATA_EXCHANGE fixed by subsequent changes the nci/nci_dev selftest hits the error path occasionally in NIPA, and kmemleak detects leaks:
unreferenced object 0xff11000015ce6a40 (size 640): comm "nci_dev", pid 3954, jiffies 4295441246 hex dump (first 32 bytes): 6b 6b 6b 6b 00 a4 00 0c 02 e1 03 6b 6b 6b 6b 6b kkkk.......kkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc 7c40cc2a): kmem_cache_alloc_node_noprof+0x492/0x630 __alloc_skb+0x11e/0x5f0 alloc_skb_with_frags+0xc6/0x8f0 sock_alloc_send_pskb+0x326/0x3f0 nfc_alloc_send_skb+0x94/0x1d0 rawsock_sendmsg+0x162/0x4c0 do_syscall_64+0x117/0xfc0
{
"affected": [],
"aliases": [
"CVE-2026-23339"
],
"database_specific": {
"cwe_ids": [
"CWE-401"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-25T11:16:31Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: nci: free skb on nci_transceive early error paths\n\nnci_transceive() takes ownership of the skb passed by the caller,\nbut the -EPROTO, -EINVAL, and -EBUSY error paths return without\nfreeing it.\n\nDue to issues clearing NCI_DATA_EXCHANGE fixed by subsequent changes\nthe nci/nci_dev selftest hits the error path occasionally in NIPA,\nand kmemleak detects leaks:\n\nunreferenced object 0xff11000015ce6a40 (size 640):\n comm \"nci_dev\", pid 3954, jiffies 4295441246\n hex dump (first 32 bytes):\n 6b 6b 6b 6b 00 a4 00 0c 02 e1 03 6b 6b 6b 6b 6b kkkk.......kkkkk\n 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk\n backtrace (crc 7c40cc2a):\n kmem_cache_alloc_node_noprof+0x492/0x630\n __alloc_skb+0x11e/0x5f0\n alloc_skb_with_frags+0xc6/0x8f0\n sock_alloc_send_pskb+0x326/0x3f0\n nfc_alloc_send_skb+0x94/0x1d0\n rawsock_sendmsg+0x162/0x4c0\n do_syscall_64+0x117/0xfc0",
"id": "GHSA-77ph-fpqv-c298",
"modified": "2026-04-23T21:31:17Z",
"published": "2026-03-25T12:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23339"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89"
}
],
"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"
}
]
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.