{"id":"CVE-2026-53210","summary":"tee: shm: fix shm leak in register_shm_helper()","details":"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.","modified":"2026-07-08T08:13:45.767674630Z","published":"2026-06-25T08:39:15.569Z","related":["CGA-jqv4-8jvf-cmg8"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53210.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/26682f5efc276e3ad96d102019472bfbf03833b2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4277759906b44d923a38c8f59f5576501b187b0d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c10c9c48b2903f41ed4c532043b0576e86228236"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dbf779db927414f5b37c1f666013e9b48a88cfde"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53210.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53210"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"7bdee41575919773818e525ea19e54eb817770af"},{"fixed":"4277759906b44d923a38c8f59f5576501b187b0d"},{"fixed":"c10c9c48b2903f41ed4c532043b0576e86228236"},{"fixed":"dbf779db927414f5b37c1f666013e9b48a88cfde"},{"fixed":"26682f5efc276e3ad96d102019472bfbf03833b2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53210.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.8.0"},{"fixed":"6.12.94"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.36"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53210.json"}}],"schema_version":"1.7.5"}