In the Linux kernel, the following vulnerability has been resolved: tee: optee: prevent use-after-free when the client exits before the supplicant Commit 70b0d6b0a199 ("tee: optee: Fix supplicant wait loop") made the client wait as killable so it can be interrupted during shutdown or after a supplicant crash. This changes the original lifetime expectations: the client task can now terminate while the supplicant is still processing its request. If the client exits first it removes the request from its queue and kfree()s it, while the request ID remains in supp->idr. A subsequent lookup on th...
In the Linux kernel, the following vulnerability has been resolved: tee: optee: prevent use-after-free when the client exits before the supplicant Commit 70b0d6b0a199 ("tee: optee: Fix supplicant wait loop") made the client wait as killable so it can be interrupted during shutdown or after a supplicant crash. This changes the original lifetime expectations: the client task can now terminate while the supplicant is still processing its request. If the client exits first it removes the request from its queue and kfree()s it, while the request ID remains in supp->idr. A subsequent lookup on th...
영향 제품·버전
제품 Linux Linux, linux kernel
영향 버전 Linux Linux, linux kernel 0180cf0373f84fff61b16f8c062553a13dd7cfca, c0a9a948159153be145f9471435695373904ee6d, ec18520f5edc20a00c34a8c9fdd6507c355e880f, d61cc1a435e6894bfb0dd3370c6f765d2d12825d, fd9d2d6124c293e40797a080adf8a9c237efd8b8, 70b0d6b0a199c5a3ee6c72f5e61681ed6f759612, 3eb4911364c764572e9db4ab900a57689a54e8ce, 21234efe2a8474a6d2d01ea9573319de7858ce44, 5.10.235, 5.15.179, 6.1.130, 6.6.80, 6.12.17, 5.4.291, 6.13.5, 6.14, >= 5.4.291 < 5.5, >= 5.10.235 < 5.10.259, >= 5.15.179 < 5.15.210, >= 6.1.130 < 6.1.176
수정 버전 Linux Linux, linux kernel 5.5, 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.14, 6.18.36, 7.0.13
Linux Linux, linux kernel의 현재 전체 버전이 공식 영향 범위(Linux Linux, linux kernel 0180cf0373f84fff61b16f8c062553a13dd7cfca, c0a9a948159153be145f9471435695373904ee6d, ec18520f5edc20a00c34a8c9fdd6507c355e880f, d61cc1a435e6894bfb0dd3370c6f765d2d12825d, fd9d2d6124c293e40797a080adf8a9c237efd8b8, 70b0d6b0a199c5a3ee6c72f5e61681ed6f759612, 3eb4911364c764572e9db4ab900a57689a54e8ce, 21234efe2a8474a6d2d01ea9573319de7858ce44, 5.10.235, 5.15.179, 6.1.130, 6.6.80, 6.12.17, 5.4.291, 6.13.5, 6.14, >= 5.4.291 < 5.5, >= 5.10.235 < 5.10.259, >= 5.15.179 < 5.15.210, >= 6.1.130 < 6.1.176)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.5, 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.14, 6.18.36, 7.0.13)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, linux kernel 5.5, 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.94, 6.14, 6.18.36, 7.0.13 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
