nfc: nci: fix double completion race in nci_data_exchange_complete
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix double completion race in nci_data_exchange_complete nci_close_device() and nci_rx_work can both call nci_data_exchange_complete() concurrently. After commit 4527025d440ce8 ("nfc: nci: fix circular locking dependency in nci_close_device") moved flush_workqueue(ndev->rx_wq) after mutex_unlock(&ndev->req_lock), rx_work is no longer serialized with the explicit completion call in the close path. Both callers read the non-NULL callback pointer and invoke rawsock_data_exchange_complete(), which calls sock_put() -- but only one sock_hold() was taken, so the second sock_put() underflows the refcount and frees the socket while it is still in use. Replace the bare clear_bit(NCI_DATA_EXCHANGE) with test_and_clear_bit() so that only the first caller proceeds to invoke the callback.
CVE-2026-90224
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-90224
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7ed00a3edc8597fe2333f524401e2889aa1b5edf",
"lessThan": "3f075832734005310740d148d1cf1c1e792ebdca",
"versionType": "git"
},
{
"status": "affected",
"version": "5eef9ebec7f5738f12cadede3545c05b34bf5ac3",
"lessThan": "588ccd19a6e69eca72d54608c3ab3b45709b2305",
"versionType": "git"
},
{
"status": "affected",
"version": "ca54e904a071aa65ef3ad46ba42d51aaac6b73b4",
"lessThan": "cf646a9f5554bc07d6ccb59c327812b3a0c6a368",
"versionType": "git"
},
{
"status": "affected",
"version": "eb435d150ca74b4d40f77f1a2266f3636ed64a79",
"lessThan": "9030a1bbe2c6b1e3e54cef462d159b5248f09fd2",
"versionType": "git"
},
{
"status": "affected",
"version": "1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289",
"lessThan": "bfdf412208fea7fc0d5b32d68a35b25261917393",
"versionType": "git"
},
{
"status": "affected",
"version": "d89b74bf08f067b55c03d7f999ba0a0e73177eb3",
"lessThan": "ba4c776af3dc21ed04e315e6545e99703bb1b53a",
"versionType": "git"
},
{
"status": "affected",
"version": "4527025d440ce84bf56e75ce1df2e84cb8178616",
"lessThan": "ee08414d78b851e3d1856d6e4d631939b01a1bbe",
"versionType": "git"
},
{
"status": "affected",
"version": "4527025d440ce84bf56e75ce1df2e84cb8178616",
"lessThan": "8265a626cc14a48e46e6dc8c47667e72b4232ac2",
"versionType": "git"
},
{
"status": "affected",
"version": "09143c0e8f3b03517e6233aad42f45c794d8df8e",
"versionType": "git"
},
{
"status": "affected",
"version": "5.10.253",
"lessThan": "5.10.270",
"versionType": "semver"
},
{
"status": "affected",
"version": "5.15.203",
"lessThan": "5.15.221",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.1.168",
"lessThan": "6.1.188",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.6.131",
"lessThan": "6.6.157",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.12.80",
"lessThan": "6.12.110",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.18.21",
"lessThan": "6.18.52",
"versionType": "semver"
},
{
"status": "affected",
"version": "6.19.11",
"lessThan": "6.20",
"versionType": "semver"
}
],
"programFiles": [
"net/nfc/nci/data.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "7.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.270",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.221",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.188",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.157",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.110",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/nfc/nci/data.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90224
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #36595 · Revision 1
- Added to Heist Feed
- Publisher date