In the Linux kernel, the following vulnerability has been resolved: ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams snd_pcm_drain() uses init_waitqueue_entry which does not clear entry.prev/next, and add_wait_queue with a conditional remove_wait_queue that is skipped when to_check is no longer in the group after concurrent UNLINK. The orphaned wait entry remains on the unlinked substream sleep queue. On the next drain iteration, add_wait_queue adds the entry to a new queue while still linked on the old one, corrupting both lists. A subsequent wake_up dereferen...
In the Linux kernel, the following vulnerability has been resolved: ALSA: PCM: Fix wait queue list corruption in snd_pcm_drain() on linked streams snd_pcm_drain() uses init_waitqueue_entry which does not clear entry.prev/next, and add_wait_queue with a conditional remove_wait_queue that is skipped when to_check is no longer in the group after concurrent UNLINK. The orphaned wait entry remains on the unlinked substream sleep queue. On the next drain iteration, add_wait_queue adds the entry to a new queue while still linked on the old one, corrupting both lists. A subsequent wake_up dereferen...
Linux Linux, linux kernel의 현재 전체 버전이 공식 영향 범위(Linux Linux, linux kernel 9baee36e8c5443411c4629afabafaff8a46a23fd, fc71f888994569f87d5bee20b1ac6c9c1e3a7a79, 629cf09464cf98670996ea5c191dc9743e6f3f00, ae8f8d30d334bad5b1b3cdb1eb8a0b771f55e432, 4a758e9a1f5ed722f83c4dd35f867fe811553bcb, 9b1dbd69ba6f8f8c69bc7b77c2ce3b9c6ed05ba6, c2f64e05a0587a83ec42dbd6b7a7ded79b2ff694, 5.10.253, 6.1.167, 6.6.130, 6.12.78, 6.18.19, 6.19.9, 7.0, >= 5.10.253 < 5.10.259, >= 6.1.167 < 6.1.176, >= 6.6.130 < 6.6.143, >= 6.12.78 < 6.12.94, >= 6.18.19 < 6.18.36, >= 6.19.9 < 7.0)에 포함되는지 확인합니다. OS를 선택하면 해당 OS의 제품·패키지·KB·APAR 확인 명령만 표시됩니다.
조치방안
제3자 참조와 수정 버전 값(5.10.259, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0, 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 5.10.259, 6.1.176, 6.6.143, 6.12.94, 6.18.36, 7.0, 7.0.13 기준을 충족하는지 확인합니다. 이어서 메모리 손상 관련 오류·공격 흔적이 새로 발생하지 않는지 확인합니다.
