{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53210", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-06-09T07:44:35.391Z", "datePublished": "2026-06-25T08:39:15.569Z", "dateUpdated": "2026-06-25T08:39:15.569Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-25T08:39:15.569Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntee: shm: fix shm leak in register_shm_helper()\n\nregister_shm_helper() allocates shm before calling\niov_iter_npages(). If iov_iter_npages() returns 0, the function\njumps to err_ctx_put and leaks shm.\n\nThis can be triggered by TEE_IOC_SHM_REGISTER with\nstruct tee_ioctl_shm_register_data where length is 0.\n\nJump to err_free_shm instead."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/tee/tee_shm.c"], "versions": [{"version": "7bdee41575919773818e525ea19e54eb817770af", "lessThan": "4277759906b44d923a38c8f59f5576501b187b0d", "status": "affected", "versionType": "git"}, {"version": "7bdee41575919773818e525ea19e54eb817770af", "lessThan": "c10c9c48b2903f41ed4c532043b0576e86228236", "status": "affected", "versionType": "git"}, {"version": "7bdee41575919773818e525ea19e54eb817770af", "lessThan": "dbf779db927414f5b37c1f666013e9b48a88cfde", "status": "affected", "versionType": "git"}, {"version": "7bdee41575919773818e525ea19e54eb817770af", "lessThan": "26682f5efc276e3ad96d102019472bfbf03833b2", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/tee/tee_shm.c"], "versions": [{"version": "6.8", "status": "affected"}, {"version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.94", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.36", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.13", "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": "6.8", "versionEndExcluding": "6.12.94"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.36"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.0.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/4277759906b44d923a38c8f59f5576501b187b0d"}, {"url": "https://git.kernel.org/stable/c/c10c9c48b2903f41ed4c532043b0576e86228236"}, {"url": "https://git.kernel.org/stable/c/dbf779db927414f5b37c1f666013e9b48a88cfde"}, {"url": "https://git.kernel.org/stable/c/26682f5efc276e3ad96d102019472bfbf03833b2"}], "title": "tee: shm: fix shm leak in register_shm_helper()", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: tee: shm: fix shm leak in register_shm_helper()", "id": "2492797", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492797"}, "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-772", "details": ["A flaw was found in the Linux kernel's Trusted Execution Environment (TEE) subsystem. A shared memory (shm) leak occurs in the `register_shm_helper()` function when `TEE_IOC_SHM_REGISTER` is called with a zero-length shared memory registration. This can be triggered by a local attacker, potentially leading to a denial of service due to memory exhaustion."], "name": "CVE-2026-53210", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "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": "2026-06-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-53210\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-53210\nhttps://lore.kernel.org/linux-cve-announce/2026062503-CVE-2026-53210-7fd4@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bdee41575919773818e525ea19e54eb817770af,4277759906b44d923a38c8f59f5576501b187b0d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bdee41575919773818e525ea19e54eb817770af,c10c9c48b2903f41ed4c532043b0576e86228236)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bdee41575919773818e525ea19e54eb817770af,dbf779db927414f5b37c1f666013e9b48a88cfde)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[7bdee41575919773818e525ea19e54eb817770af,26682f5efc276e3ad96d102019472bfbf03833b2)"}}], "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": "generic", "value": "6.8"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.8)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.94,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.36,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.13,7.1.0)"}}, {"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": "2026-06-25T11:30:06.465342+00:00", "updated": "2026-06-26T13:45:05.808491+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-401", "CWE-772"]}