Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 취약점
In the Linux kernel, the following vulnerability has been resolved: net: skbuff: fix missing zerocopy reference in pskb_carve helpers pskb_carve_inside_header() and pskb_carve_inside_nonlinear() both copy the old skb_shared_info header into a new buffer via memcpy(), which includes the destructor_arg pointer (uarg) for MSG_ZEROCOPY skbs. Neither function calls net_zcopy_get() for the new shinfo, creating an unaccounted holder: every skb_shared_info with destructor_arg set will call skb_zcopy_clear() once when freed, but the corresponding net_zcopy_get() was never called for the new copy. Re...
In the Linux kernel, the following vulnerability has been resolved: net: skbuff: fix missing zerocopy reference in pskb_carve helpers pskb_carve_inside_header() and pskb_carve_inside_nonlinear() both copy the old skb_shared_info header into a new buffer via memcpy(), which includes the destructor_arg pointer (uarg) for MSG_ZEROCOPY skbs. Neither function calls net_zcopy_get() for the new shinfo, creating an unaccounted holder: every skb_shared_info with destructor_arg set will call skb_zcopy_clear() once when freed, but the corresponding net_zcopy_get() was never called for the new copy. Re...
영향 제품·버전
제품 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6
영향 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 8dbed691e43a50903658130bde0fcb5abc425b37, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 9b40bdc2a3298225dffab8158208a0d8c6300578, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < fd470f0a97b8e9a125f520265d2f3b088ffb5b8a, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < ceafb893b12f23331dcc5ff9587e643c3a40ee9f, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 2e0e74c59b2761a414d9f48d7bee1e45220b2427, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 96a4713ae041cc85e712bac682cd2e644004d6c6, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 474d6c771d798bca84f0a140b611e36743511e18, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 98d0912e9f841e5529a5b89a972805f34cb1c69d, >= 4.7, >= 4.7 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.1.176, >= 6.2 < 6.6.143, >= 6.7 < 6.12.93, >= 6.13 < 6.18.35, >= 6.19 < 7.0.12, 7.1
수정 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.93, 6.18.35, 7.0.12
Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6의 현재 전체 버전이 공식 영향 범위(Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 8dbed691e43a50903658130bde0fcb5abc425b37, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 9b40bdc2a3298225dffab8158208a0d8c6300578, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < fd470f0a97b8e9a125f520265d2f3b088ffb5b8a, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < ceafb893b12f23331dcc5ff9587e643c3a40ee9f, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 2e0e74c59b2761a414d9f48d7bee1e45220b2427, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 96a4713ae041cc85e712bac682cd2e644004d6c6, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 474d6c771d798bca84f0a140b611e36743511e18, >= 6fa01ccd883021105e9f8af7d04b9f156fa3494a < 98d0912e9f841e5529a5b89a972805f34cb1c69d, >= 4.7, >= 4.7 < 5.10.259, >= 5.11 < 5.15.210, >= 5.16 < 6.1.176, >= 6.2 < 6.6.143, >= 6.7 < 6.12.93, >= 6.13 < 6.18.35, >= 6.19 < 7.0.12, 7.1)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.93, 6.18.35, 7.0.12)은 보조 근거로만 사용하고, 공급사 공식 보안 권고에서 조치 기준을 재확인합니다.
조치 후 확인사항
패치 후 같은 명령으로 전체 버전을 다시 확인해 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6 5.10.259, 5.15.210, 6.1.176, 6.6.143, 6.12.93, 6.18.35, 7.0.12 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
