252 lines
13 KiB
JSON
252 lines
13 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-98580",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-09-25T10:25:14.358Z",
|
|
"datePublished": "2026-10-18T15:18:53.819Z",
|
|
"dateUpdated": "2026-10-19T09:22:05.887Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-19T09:22:05.887Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: Fix race condition in accept_queue lifecycle\n\nIn nfc_llcp_socket_release(), sockets and listener accept queues are\nwalked under the local sockets rwlock and bh_lock_sock(). However,\nbh_lock_sock() does not synchronise against process-context lock_sock()\nheld by nfc_llcp_accept_dequeue() during accept(). Because\nsocket_release() does not check sock_owned_by_user(), both paths can\nconcurrently unlink and release the same child socket, resulting in\nuse-after-free or a NULL pointer dereference of child->parent in\nnfc_llcp_accept_unlink().\n\nFix this synchronisation race by having nfc_llcp_socket_release() use\nprocess-context lock_sock() instead of bh_lock_sock():\n\n1. Pop sockets from the local sockets list under the write lock using\n nfc_llcp_sock_list_pop() so lock_sock() can be acquired without\n holding the rwlock.\n\n2. Because lock_sock() can sleep, defer the final release of the\n nfc_llcp_local structure to a workqueue (release_work). This avoids\n a sleeping-in-atomic bug when the last local reference is dropped\n from softirq context. Additionally, hold a single device reference\n on local from registration until final destruction.\n\n3. In nfc_llcp_local_get(), use kref_get_unless_zero() to prevent\n resurrecting a local object whose teardown has been scheduled.\n\n4. In llcp_sock_accept(), verify that the listener socket state is still\n LLCP_LISTEN after waking from schedule_timeout() to prevent hangs if\n the listener is closed concurrently.\n\n5. When unlinking unaccepted child sockets during listener release,\n unlink them from local->sockets, call sock_orphan(), and drop their\n initial sk_alloc creation reference via sock_put().\n\n6. Make nfc_llcp_accept_unlink() idempotent by guarding parent access with\n a NULL check."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/nfc/llcp.h",
|
|
"net/nfc/llcp_core.c",
|
|
"net/nfc/llcp_sock.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "54adcabb0f1deef1bdae5fc64779ed6d442721c9",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "7c938aad5108382c6ad7453c4b5ee8ae3f3252ed",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "d2093a0981138876212bc5f473bdbfba0786e064",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "41256821762a7114906b178826d17098e2fa5992",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "53867f6acb1af7f12d6485fa8a2819318f89083b",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "da8a07757383614a8380a0f7dd54749d2687b82e",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "d5e1c92d09caed19f2988739695ce611a86ba6f8",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "50b78b2a6500d0e97c204c1b6c51df8c17358bbe",
|
|
"lessThan": "c3eef2f988a3db9690369d7cef9a3344dd9788d3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"net/nfc/llcp.h",
|
|
"net/nfc/llcp_core.c",
|
|
"net/nfc/llcp_sock.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "3.7",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "3.7",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.271",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.222",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.189",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.158",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.112",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.55",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2.9",
|
|
"lessThanOrEqual": "7.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.3",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "5.10.271"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "5.15.222"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "6.1.189"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "6.6.158"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "6.12.112"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "6.18.55"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "7.2.9"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "3.7",
|
|
"versionEndExcluding": "7.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/54adcabb0f1deef1bdae5fc64779ed6d442721c9"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/7c938aad5108382c6ad7453c4b5ee8ae3f3252ed"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/d2093a0981138876212bc5f473bdbfba0786e064"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/41256821762a7114906b178826d17098e2fa5992"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/53867f6acb1af7f12d6485fa8a2819318f89083b"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/da8a07757383614a8380a0f7dd54749d2687b82e"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/d5e1c92d09caed19f2988739695ce611a86ba6f8"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/c3eef2f988a3db9690369d7cef9a3344dd9788d3"
|
|
}
|
|
],
|
|
"title": "nfc: llcp: Fix race condition in accept_queue lifecycle",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |