{"id":"CVE-2022-50642","state":"PUBLISHED","title":"platform/chrome: cros_ec_typec: zero out stale pointers","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: cros_ec_typec: zero out stale pointers\n\n`cros_typec_get_switch_handles` allocates four pointers when obtaining\ntype-c switch handles. These pointers are all freed if failing to obtain\nany of them; therefore, pointers in `port` become stale. The stale\npointers eventually cause use-after-free or double free in later code\npaths. Zeroing out all pointer fields after freeing to eliminate these\nstale pointers.","publishedAt":"2025-12-09T00:00:16.490Z","updatedAt":"2026-05-11T19:22:47.744Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"b610758bb3e0674644c1255cdafc2f46b7e05ff9","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"6613f36a2fa5c69e528bccba8b3d831f759dad2f","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"9a8aadcf0b459c1257b9477fd6402e1d5952ae07","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/chrome/cros_ec_typec.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/chrome/cros_ec_typec.c"]}],"references":["https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40","https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9","https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f","https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50642.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50642","state":"PUBLISHED","datePublished":"2025-12-09T00:00:16.490Z","dateUpdated":"2026-05-11T19:22:47.744Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-08T23:57:43.370Z"},"containers":{"cna":{"title":"platform/chrome: cros_ec_typec: zero out stale pointers","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/chrome: cros_ec_typec: zero out stale pointers\n\n`cros_typec_get_switch_handles` allocates four pointers when obtaining\ntype-c switch handles. These pointers are all freed if failing to obtain\nany of them; therefore, pointers in `port` become stale. The stale\npointers eventually cause use-after-free or double free in later code\npaths. Zeroing out all pointer fields after freeing to eliminate these\nstale pointers."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"b610758bb3e0674644c1255cdafc2f46b7e05ff9","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"6613f36a2fa5c69e528bccba8b3d831f759dad2f","versionType":"git"},{"version":"f28adb41dab4a2795fd959750df57adffd2bb0be","status":"affected","lessThan":"9a8aadcf0b459c1257b9477fd6402e1d5952ae07","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/chrome/cros_ec_typec.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.9","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/platform/chrome/cros_ec_typec.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0ceadb5a3e45f1b81cf54bd496b40a5e50b6bd40"},{"url":"https://git.kernel.org/stable/c/b610758bb3e0674644c1255cdafc2f46b7e05ff9"},{"url":"https://git.kernel.org/stable/c/6613f36a2fa5c69e528bccba8b3d831f759dad2f"},{"url":"https://git.kernel.org/stable/c/9a8aadcf0b459c1257b9477fd6402e1d5952ae07"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:22:47.744Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}