In the Linux kernel, the following vulnerability has been resolved: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() When enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the child qdisc's peek() operation before incrementing sch->q.qlen and sch->qstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may trigger an immediate dequeue and potential packet drop. In such cases, qdisc_tree_reduce_backlog() is called, but the HFSC qdisc's qlen and backlog have not yet been updated, leading to inconsistent queue accounting. This can leave an empty H...
In the Linux kernel, the following vulnerability has been resolved: sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() When enqueuing the first packet to an HFSC class, hfsc_enqueue() calls the child qdisc's peek() operation before incrementing sch->q.qlen and sch->qstats.backlog. If the child qdisc uses qdisc_peek_dequeued(), this may trigger an immediate dequeue and potential packet drop. In such cases, qdisc_tree_reduce_backlog() is called, but the HFSC qdisc's qlen and backlog have not yet been updated, leading to inconsistent queue accounting. This can leave an empty H...
Linux Linux, linux kernel, debian linux의 현재 전체 버전이 공식 영향 범위(Linux Linux, linux kernel, debian linux >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 1034e3310752e8675e313f7271b348914008719a, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < f9f593e34d2fb67644372c8f7b033bdc622ad228, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 89c301e929a0db14ebd94b4d97764ce1d6981653, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < f1dde3eb17dc1b8bd07aed00004b1e05fc87a3d4, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 93c276942e75de0e5bc91576300d292e968f5a02, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 49b21795b8e5654a7df3d910a12e1060da4c04cf, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 3f3a22eebbc32b4fa8ce9c1d5f9db214b45b9335, >= 12d0ad3be9c3854e52ec74bb83bb6f43612827c7 < 3f981138109f63232a5fb7165938d4c945cc1b9d, >= 4.8, >= 4.8 < 5.4.294, >= 5.5 < 5.10.238, >= 5.11 < 5.15.185, >= 5.16 < 6.1.141, >= 6.2 < 6.6.93, >= 6.7 < 6.12.31, >= 6.13 < 6.14.9, 6.15, 11.0)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9)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, debian linux 5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
