Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 취약점
In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns sector_t (64-bit). When a device-mapper target has a sufficiently large ti->len with a small region_size, the division result can exceed UINT_MAX. The truncated value is then used to calculate bitset_size, causing clean_bits, sync_bits, and recovering_bits to be allocated far smaller than needed for the actual number of regions. Subsequent l...
In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to region_count overflow The local variable region_count in create_log_context() is declared as unsigned int (32-bit), but dm_sector_div_up() returns sector_t (64-bit). When a device-mapper target has a sufficiently large ti->len with a small region_size, the division result can exceed UINT_MAX. The truncated value is then used to calculate bitset_size, causing clean_bits, sync_bits, and recovering_bits to be allocated far smaller than needed for the actual number of regions. Subsequent l...
영향 제품·버전
제품 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8
영향 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 44ab8875ae4a2842bde2d756bed195d375e0debb, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < defe483e47173768c227532694dc78cb65db5f09, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3ec74da927b4e171a6fc0e77b1188ba4d019af51, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d4ac87567f86a55c3c92e9a5144dcd943a9772a1, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 12bd5b88e91a02785244ff1d20fb157e96e9cdc8, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b455903eed4558982be0811f5b7f44f6bbc4ff57, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4ec8323b9f0764a14d532b1ae9b87f8a9fecb867, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c20e36b7631d83e7535877f08af8b0af72c44b1a, >= 2.6.12, >= 2.6.12.1 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10, 2.6.12
수정 버전 Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10
Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8의 현재 전체 버전이 공식 영향 범위(Linux Linux, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8 >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 44ab8875ae4a2842bde2d756bed195d375e0debb, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < defe483e47173768c227532694dc78cb65db5f09, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3ec74da927b4e171a6fc0e77b1188ba4d019af51, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d4ac87567f86a55c3c92e9a5144dcd943a9772a1, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 12bd5b88e91a02785244ff1d20fb157e96e9cdc8, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b455903eed4558982be0811f5b7f44f6bbc4ff57, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4ec8323b9f0764a14d532b1ae9b87f8a9fecb867, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c20e36b7631d83e7535877f08af8b0af72c44b1a, >= 2.6.12, >= 2.6.12.1 < 5.10.258, >= 5.11 < 5.15.209, >= 5.16 < 6.1.175, >= 6.2 < 6.6.141, >= 6.7 < 6.12.91, >= 6.13 < 6.18.33, >= 6.19 < 7.0.10, 2.6.12)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10)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 8 5.10.258, 5.15.209, 6.1.175, 6.6.141, 6.12.91, 6.18.33, 7.0.10 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
