net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map
Just simply reordering the functions mlx5e_ptp_metadata_map_put and
mlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good
enough since both the compiler and CPU are free to reorder these two
functions. If reordering does occur, the issue that was supposedly fixed by
7e3f3ba97e6c ("net/mlx5e: Track xmit submission to PTP WQ after populating
metadata map") will be seen. This will lead to NULL pointer dereferences in
mlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the
tracking list being populated before the metadata map.
CVE 정보
EPSS
EPSS는 취약점이 악용될 가능성을 예측하는 점수 모델입니다.
EPSS 점수
EPSS 모델은 0과 1(0~100%) 사이의 확률 점수를 생성합니다. 점수가 높을수록 취약점이 악용될 가능성이 높습니다.
날짜
EPSS V0
EPSS V1
EPSS V2 (> 2022-02-04)
EPSS V3 (> 2025-03-07)
EPSS V4 (> 2025-03-17)
2024-04-19
–
–
–
0.05%
–
2024-06-02
–
–
–
0.05%
–
2024-06-23
–
–
–
0.05%
–
2024-10-27
–
–
–
0.05%
–
2024-12-15
–
–
–
0.05%
–
2024-12-22
–
–
–
0.05%
–
2025-01-12
–
–
–
0.05%
–
2025-01-19
–
–
–
0.05%
–
2025-03-18
–
–
–
–
0.07%
2025-03-30
–
–
–
–
0.07%
2025-04-10
–
–
–
–
0.07%
2025-04-12
–
–
–
–
0.07%
2025-04-15
–
–
–
–
0.04%
2025-05-26
–
–
–
–
0.01%
2025-11-09
–
–
–
–
0.02%
2025-11-18
–
–
–
–
0.07%
2025-11-21
–
–
–
–
0.02%
2026-01-01
–
–
–
–
0.02%
2026-01-04
–
–
–
–
0.02%
2026-01-08
–
–
–
–
0.02%
2026-01-12
–
–
–
–
0.02%
2026-02-22
–
–
–
–
0.02%
2026-05-31
–
–
–
–
0.02%
2026-06-07
–
–
–
–
0.02%
EPSS 백분위수
백분위수는 EPSS 점수에 따라 CVE의 순위를 매기는 데 사용됩니다. 예를 들어 EPSS 점수 기준 95번째 백분위수의 CVE는 다른 CVE의 95%보다 악용될 가능성이 높습니다.