HighFix available
Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 5.10.231, 5.15.174, 5.4.287, 6.1.120, 6.12.5, 6.6.66
- CVEs
- CVE-2024-56605
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 10:37 UTC · Revision 1
Source evidence
Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()
core-osv · Original sourcePublished 27 Dec 2024, 14:51 UTC
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code.
osv:CVE-2024-56605
Kernel
Fixed versions: 5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.66, 6.12.5
Complete source record
{
"id": "46521784366cd2ec4a75b685dc701da9f93350cfcb3164c8bb57c05cd405e9c0",
"url": "https://osv.dev/vulnerability/CVE-2024-56605",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()",
"summary": "In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code.",
"evidence": "osv:CVE-2024-56605",
"products": [
{
"name": {
"value": "Kernel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.4.287",
"evidence": "/affected/1/ranges"
},
{
"value": "5.10.231",
"evidence": "/affected/1/ranges"
},
{
"value": "5.15.174",
"evidence": "/affected/1/ranges"
},
{
"value": "6.1.120",
"evidence": "/affected/1/ranges"
},
{
"value": "6.6.66",
"evidence": "/affected/1/ranges"
},
{
"value": "6.12.5",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "CVE-2024-56605",
"aliases": [
"CVE-2024-56605"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
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"type": "GIT",
"events": [
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{
"fixed": "a8677028dd5123e5e525b8195483994d87123de4"
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{
"fixed": "bb2f2342a6ddf7c04f9aefbbfe86104cd138e629"
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{
"fixed": "8ad09ddc63ace3950ac43db6fbfe25b40f589dd6"
},
{
"fixed": "61686abc2f3c2c67822aa23ce6f160467ec83d35"
},
{
"fixed": "7c4f78cdb8e7501e9f92d291a7d956591bf73be9"
}
]
}
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56605.json"
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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{
"type": "ECOSYSTEM",
"events": [
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{
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{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.11.0"
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{
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]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "5.16.0"
},
{
"fixed": "6.1.120"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.2.0"
},
{
"fixed": "6.6.66"
}
]
},
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "6.7.0"
},
{
"fixed": "6.12.5"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56605.json"
}
}
],
"modified": "2026-10-28T02:30:43.797662963Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/61686abc2f3c2c67822aa23ce6f160467ec83d35",
"https://git.kernel.org/stable/c/7c4f78cdb8e7501e9f92d291a7d956591bf73be9",
"https://git.kernel.org/stable/c/8ad09ddc63ace3950ac43db6fbfe25b40f589dd6",
"https://git.kernel.org/stable/c/a8677028dd5123e5e525b8195483994d87123de4",
"https://git.kernel.org/stable/c/bb2f2342a6ddf7c04f9aefbbfe86104cd138e629",
"https://git.kernel.org/stable/c/daa13175a6dea312a76099066cb4cbd4fc959a84",
"https://git.kernel.org/stable/c/f6ad641646b67f29c7578dcd6c25813c7dcbf51e",
"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html",
"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56605.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-56605",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56605.json"
}
},
"related_cves": [
{
"value": "CVE-2024-56605",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 511645,
"published_at": "2024-12-27T14:51:10.344+00:00"
}