{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-68397", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-30T09:28:09.389Z", "datePublished": "2026-08-10T12:04:16.772Z", "dateUpdated": "2026-08-10T12:04:16.772Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-10T12:04:16.772Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/iucv: take a reference on the socket found in afiucv_hs_rcv()\n\nafiucv_hs_rcv() looks up the destination socket under iucv_sk_list.lock,\ndrops the lock, and then passes the socket to the afiucv_hs_callback_*()\nhandlers without holding a reference. AF_IUCV sockets are not\nRCU-protected and are freed synchronously by iucv_sock_kill() ->\nsock_put(), so a concurrent close can free the socket in the window\nbetween read_unlock() and the handler, which then dereferences freed\nmemory (for example sk->sk_data_ready() in afiucv_hs_callback_syn()).\n\nTake a reference with sock_hold() while the socket is still on the list\nand release it with sock_put() once the handler has run."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/iucv/af_iucv.c"], "versions": [{"version": "3881ac441f642d56503818123446f7298442236b", "lessThan": "4dc0e63abf8bc7ba8892e617c1fb8b204361e022", "status": "affected", "versionType": "git"}, {"version": "3881ac441f642d56503818123446f7298442236b", "lessThan": "1801cb20a5025a787d6853e19c38db138344b4b4", "status": "affected", "versionType": "git"}, {"version": "3881ac441f642d56503818123446f7298442236b", "lessThan": "c75a950e77356e526672cba4584080c6c8b793b6", "status": "affected", "versionType": "git"}, {"version": "3881ac441f642d56503818123446f7298442236b", "lessThan": "5595ea59cdf29182cf6a270cacc1426c57b603de", "status": "affected", "versionType": "git"}, {"version": "3881ac441f642d56503818123446f7298442236b", "lessThan": "4fa349156043dc119721d067329714179f501749", "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/iucv/af_iucv.c"], "versions": [{"version": "3.2", "status": "affected"}, {"version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.42", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.6", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2-rc4", "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": "3.2", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "6.18.42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.1.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "7.2-rc4"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4dc0e63abf8bc7ba8892e617c1fb8b204361e022"}, {"url": "https://git.kernel.org/stable/c/1801cb20a5025a787d6853e19c38db138344b4b4"}, {"url": "https://git.kernel.org/stable/c/c75a950e77356e526672cba4584080c6c8b793b6"}, {"url": "https://git.kernel.org/stable/c/5595ea59cdf29182cf6a270cacc1426c57b603de"}, {"url": "https://git.kernel.org/stable/c/4fa349156043dc119721d067329714179f501749"}], "title": "net/iucv: take a reference on the socket found in afiucv_hs_rcv()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{}

{}

{"created": "2026-08-10T17:00:03.761845+00:00", "updated": "2026-08-10T17:00:03.761850+00:00", "vendors": [], "weaknesses": ["CWE-416", "CWE-362"]}