nfc: nci: free rx_data_reassembly skb on NCI device cleanup
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.19.307, 5.10.210, 5.15.149, 5.4.269, 6.1.79, 6.6.18, 6.7.6
- CVEs
- CVE-2024-26825
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 16:40 UTC · Revision 1
Source evidence
nfc: nci: free rx_data_reassembly skb on NCI device cleanup
core-osv · Original sourcePublished 17 Apr 2024, 09:43 UTC
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
osv:CVE-2024-26825
Kernel
Fixed versions: 4.19.307, 5.4.269, 5.10.210, 5.15.149, 6.1.79, 6.6.18, 6.7.6
Complete source record
{
"id": "3b6769c9f7fa610e4b359546dbe798d3af3d01683c590475e0870a8ed95e9670",
"url": "https://osv.dev/vulnerability/CVE-2024-26825",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "nfc: nci: free rx_data_reassembly skb on NCI device cleanup",
"summary": "In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.",
"evidence": "osv:CVE-2024-26825",
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"modified": "2026-10-28T02:30:30.644916225Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d",
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"https://git.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c",
"https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html",
"https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26825.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-26825",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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"provider_metadata": {
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"related_cves": [
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 497463,
"published_at": "2024-04-17T09:43:51.114+00:00"
}