In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfs_validate_bblk() Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfs_read_map() passes it to kmalloc_array(0, ...) which returns ZERO_SIZE_PTR, and adfs_map_layout() then writes to dm[-1], causing an out-of-bounds write before the allocated buffer. adfs_validate_dr0() already rejects nzones != 1 for old-format images. Add the equivalent check to adfs_validate_bblk() for new-format images so that a crafted image w...
In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfs_validate_bblk() Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfs_read_map() passes it to kmalloc_array(0, ...) which returns ZERO_SIZE_PTR, and adfs_map_layout() then writes to dm[-1], causing an out-of-bounds write before the allocated buffer. adfs_validate_dr0() already rejects nzones != 1 for old-format images. Add the equivalent check to adfs_validate_bblk() for new-format images so that a crafted image w...
Linux Linux, linux kernel의 현재 전체 버전이 공식 영향 범위(Linux Linux, linux kernel >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < 33aafd2418a59c96c0389d47ea09026661fa9ec6, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < 1f0ed0f57f0fc87e46fe19a05435c214dc464be2, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < 6ff8cca5cdb4f2e0ea6d28ecd78479dd3f221ebc, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < a11372a8b1ceaa5e950a84b3b5fbf8228f25e277, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < 1586bd2d2fb436a26df20a70e78b000d34a7d159, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < a3fd5dc1c7b0aae947a67dc2e2c037d57557a4de, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < 60d82592ac8b5637fbed871381eb0a16df0a492e, >= f6f14a0d71b0773a1d4147d1a3c33d537cd213ab < dd9d3e16c2d5fa166e13dce07413be51f42c8f5d, >= 5.6, >= 5.6 < 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)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, linux kernel 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.
