{"id":"CVE-2026-53210","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-53210","generatedAt":"2026-10-28T02:20:25.522Z","title":"In the Linux kernel, the following vulnerability has been resolved: tee: shm: fix shm leak in register_shm_helper() register_shm_helper() allocates shm before calling iov_iter_npages().","description":"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.","published":"2026-06-25T09:16:39.000Z","lastModified":"2026-07-02T20:54:06.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-401"],"affected":["linux/linux kernel"],"epss":{"score":0.00122,"percentile":0.01958,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/26682f5efc276e3ad96d102019472bfbf03833b2","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4277759906b44d923a38c8f59f5576501b187b0d","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c10c9c48b2903f41ed4c532043b0576e86228236","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dbf779db927414f5b37c1f666013e9b48a88cfde","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53210","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}