{"id":"CVE-2021-47525","state":"PUBLISHED","title":"serial: liteuart: fix use-after-free and memleak on unbind","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: liteuart: fix use-after-free and memleak on unbind\n\nDeregister the port when unbinding the driver to prevent it from being\nused after releasing the driver data and leaking memory allocated by\nserial core.","publishedAt":"2024-05-24T15:09:37.355Z","updatedAt":"2026-05-11T13:56:20.973Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1da81e5562fac8286567422cc56a7fbd0dc646d4","status":"affected","lessThan":"602824cf9aa9db8830ffe5cfb2cd54365cada4fe","versionType":"git"},{"version":"1da81e5562fac8286567422cc56a7fbd0dc646d4","status":"affected","lessThan":"05f929b395dec8957b636ff14e66b277ed022ed9","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/liteuart.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.11","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.11","versionType":"semver"},{"version":"5.15.7","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.16","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/tty/serial/liteuart.c"]}],"references":["https://git.kernel.org/stable/c/602824cf9aa9db8830ffe5cfb2cd54365cada4fe","https://git.kernel.org/stable/c/05f929b395dec8957b636ff14e66b277ed022ed9"],"weaknesses":[],"ingestedAt":"2026-10-29T19:49:19.404Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/47xxx/CVE-2021-47525.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2021-47525","state":"PUBLISHED","datePublished":"2024-05-24T15:09:37.355Z","dateUpdated":"2026-05-11T13:56:20.973Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-05-24T15:02:54.825Z"},"containers":{"cna":{"title":"serial: liteuart: fix use-after-free and memleak on unbind","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: liteuart: fix use-after-free and memleak on unbind\n\nDeregister the port when unbinding the driver to prevent it from being\nused after releasing the driver data and leaking memory allocated by\nserial 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