CVE-2026-53292

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53292", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.396Z", "datePublished": "2026-06-26T19:40:51.470Z", "dateUpdated": "2026-10-30T12:26:55.765Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:26:55.765Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind\n\nsyzbot reported a kernel BUG triggered from pn_socket_sendmsg() via\npn_socket_autobind():\n\n kernel BUG at net/phonet/socket.c:213!\n RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]\n RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421\n Call Trace:\n sock_sendmsg_nosec+0x112/0x150 net/socket.c:797\n __sock_sendmsg net/socket.c:812 [inline]\n __sys_sendto+0x402/0x590 net/socket.c:2280\n ...\n\npn_socket_autobind() calls pn_socket_bind() with port 0 and, on\n-EINVAL, assumes the socket was already bound and asserts that the\nport is non-zero:\n\n err = pn_socket_bind(sock, ..., sizeof(struct sockaddr_pn));\n if (err != -EINVAL)\n return err;\n BUG_ON(!pn_port(pn_sk(sock->sk)->sobject));\n return 0; /* socket was already bound */\n\nHowever pn_socket_bind() also returns -EINVAL when sk->sk_state is not\nTCP_CLOSE, even when the socket has never been bound and pn_port() is\nstill 0. In that case the BUG_ON() fires and panics the kernel from a\nuser-triggerable path.\n\nTreat the \"bind returned -EINVAL but pn_port() is still 0\" case as a\nregular error and propagate -EINVAL to the caller instead of crashing.\nExisting callers already translate a non-zero return from\npn_socket_autobind() into -ENOBUFS/-EAGAIN, so returning -EINVAL here\nonly changes behaviour from panic to a normal errno."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/phonet/socket.c"], "versions": [{"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "6972021488e3142f30a89d8035eebeefbbe65656", "status": "affected", "versionType": "git"}, {"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "4255c8f756b78d07800baf3320bdbdc130c54193", "status": "affected", "versionType": "git"}, {"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "363c7fcac553dc2aa12fc90c6e5e6eba87500269", "status": "affected", "versionType": "git"}, {"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "5459933a799aaf642cbeb35fdf7e78c59bf2fb9b", "status": "affected", "versionType": "git"}, {"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "6db58ee730bf434d1afca91b91826e26688856ed", "status": "affected", "versionType": "git"}, {"version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "lessThan": "5b0c911bcdbd982f7748d11c0b39ec5808eae2de", "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/phonet/socket.c"], "versions": [{"version": "2.6.28", "status": "affected"}, {"version": "0", "lessThan": "2.6.28", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.191", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.160", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.114", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.10", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1", "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": "2.6.28", "versionEndExcluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.6.160"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.12.114"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "7.0.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.28", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6972021488e3142f30a89d8035eebeefbbe65656"}, {"url": "https://git.kernel.org/stable/c/4255c8f756b78d07800baf3320bdbdc130c54193"}, {"url": "https://git.kernel.org/stable/c/363c7fcac553dc2aa12fc90c6e5e6eba87500269"}, {"url": "https://git.kernel.org/stable/c/5459933a799aaf642cbeb35fdf7e78c59bf2fb9b"}, {"url": "https://git.kernel.org/stable/c/6db58ee730bf434d1afca91b91826e26688856ed"}, {"url": "https://git.kernel.org/stable/c/5b0c911bcdbd982f7748d11c0b39ec5808eae2de"}], "title": "net: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/phonet/socket.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "6972021488e3142f30a89d8035eebeefbbe65656", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}, {"lessThan": "4255c8f756b78d07800baf3320bdbdc130c54193", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}, {"lessThan": "363c7fcac553dc2aa12fc90c6e5e6eba87500269", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}, {"lessThan": "5459933a799aaf642cbeb35fdf7e78c59bf2fb9b", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}, {"lessThan": "6db58ee730bf434d1afca91b91826e26688856ed", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}, {"lessThan": "5b0c911bcdbd982f7748d11c0b39ec5808eae2de", "status": "affected", "version": "ba113a94b7503ee23ffe819e7045134b0c1d31de", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/phonet/socket.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.28"}, {"lessThan": "2.6.28", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.191", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.160", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.114", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.0.*", "status": "unaffected", "version": "7.0.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "6A5E1EB0-126A-446F-8A99-DF25FE9D5FF2", "versionEndExcluding": "7.0.10", "versionStartIncluding": "2.6.28", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*", "matchCriteriaId": "B1EF7059-E670-45F4-B422-54C40FA86390", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind\n\nsyzbot reported a kernel BUG triggered from pn_socket_sendmsg() via\npn_socket_autobind():\n\n kernel BUG at net/phonet/socket.c:213!\n RIP: 0010:pn_socket_autobind net/phonet/socket.c:213 [inline]\n RIP: 0010:pn_socket_sendmsg+0x240/0x250 net/phonet/socket.c:421\n Call Trace:\n sock_sendmsg_nosec+0x112/0x150 net/socket.c:797\n __sock_sendmsg net/socket.c:812 [inline]\n __sys_sendto+0x402/0x590 net/socket.c:2280\n ...\n\npn_socket_autobind() calls pn_socket_bind() with port 0 and, on\n-EINVAL, assumes the socket was already bound and asserts that the\nport is non-zero:\n\n err = pn_socket_bind(sock, ..., sizeof(struct sockaddr_pn));\n if (err != -EINVAL)\n return err;\n BUG_ON(!pn_port(pn_sk(sock->sk)->sobject));\n return 0; /* socket was already bound */\n\nHowever pn_socket_bind() also returns -EINVAL when sk->sk_state is not\nTCP_CLOSE, even when the socket has never been bound and pn_port() is\nstill 0. In that case the BUG_ON() fires and panics the kernel from a\nuser-triggerable path.\n\nTreat the \"bind returned -EINVAL but pn_port() is still 0\" case as a\nregular error and propagate -EINVAL to the caller instead of crashing.\nExisting callers already translate a non-zero return from\npn_socket_autobind() into -ENOBUFS/-EAGAIN, so returning -EINVAL here\nonly changes behaviour from panic to a normal errno."}], "id": "CVE-2026-53292", "lastModified": "2026-10-30T13:19:15.873", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-06-26T20:17:22.090", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/363c7fcac553dc2aa12fc90c6e5e6eba87500269"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4255c8f756b78d07800baf3320bdbdc130c54193"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5459933a799aaf642cbeb35fdf7e78c59bf2fb9b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/5b0c911bcdbd982f7748d11c0b39ec5808eae2de"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6972021488e3142f30a89d8035eebeefbbe65656"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/6db58ee730bf434d1afca91b91826e26688856ed"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-617"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: net: phonet: do not BUG_ON() in pn_socket_autobind() on failed bind", "id": "2493770", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493770"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-253", "details": ["A flaw was found in the Linux kernel's phonet networking subsystem. A local user could trigger a kernel panic by sending a specially crafted message, leading to a denial of service. This occurs because the `pn_socket_autobind()` function incorrectly assumes a socket is already bound when `pn_socket_bind()` returns an `-EINVAL` error, causing a `BUG_ON()` assertion to fire."], "name": "CVE-2026-53292", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-06-26T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53292\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53292\nhttps://lore.kernel.org/linux-cve-announce/2026062617-CVE-2026-53292-666f@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ba113a94b7503ee23ffe819e7045134b0c1d31de,6db58ee730bf434d1afca91b91826e26688856ed)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ba113a94b7503ee23ffe819e7045134b0c1d31de,5b0c911bcdbd982f7748d11c0b39ec5808eae2de)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.28"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.28)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.10,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-06-26T22:30:04.063394+00:00", "updated": "2026-08-12T08:45:02.329687+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}