CVE-2026-74666는 Linux에서 확인된 높음 등급 보안 취약점입니다. 공개 데이터에 표시된 영향 버전은 >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < bf3c8e86bc8ad111be3f3136125e255344bcb3da, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < 8cfb2e71926a682f36c4240067d424074dd8f70f, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < f015c9de92b731814059a343b765c60c0196225c, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < cf8189b82bb93f219ab740e0346c919ad65ada62, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < ad740b4990347521f0db260d381f9f74e7b340ba, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < 2c7b5eb87b2b288cdbde825f21d2b83b2f5da747, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < a08196c3cc105947746ec21309edfbb60275fcdb, >= 2ccdbaa6d55b0656244ba57c4b56765a0af76c0a < 1a35da325cac4d5bcad76a2aa943408a6f1d9000, >= 4.2입니다. CVSS 기본 점수는 7.8점입니다. 현재 CISA KEV 등록은 확인되지 않았습니다.
NVD 영문 원문의 세부 내용은 한국어 설명으로 순차 보강 중입니다. 보강 전에는 제품·위험도·실제 악용 여부처럼 공개 데이터로 확인된 정보만 표시합니다.
영문 원문 보기
In the Linux kernel, the following vulnerability has been resolved: packet: synchronize pressure clearing with ring reconfiguration packet_set_ring() updates the RX ring state under sk_receive_queue.lock, but used to publish the tpacket receive mode through po->prot_hook.func after releasing that lock. packet_poll() and packet_recvmsg() can then run the pressure clearing path after the ring has been cleared while still seeing tpacket_rcv, causing __packet_rcv_has_room() to dereference stale or NULL ring storage. Move the existing receive hook assignment into the same sk_receive_queue.lock s...
