cxl/features: Add check for no entries in cxl_feature_info
In the Linux kernel, the following vulnerability has been resolved:
cxl/features: Add check for no entries in cxl_feature_info
cxl EDAC calls cxl_feature_info() to get the feature information and
if the hardware has no Features support, cxlfs may be passed in as
NULL.
[ 51.957498] BUG: kernel NULL pointer dereference, address: 0000000000000008
[ 51.965571] #PF: supervisor read access in kernel mode
[ 51.971559] #PF: error_code(0x0000) - not-present page
[ 51.977542] PGD 17e4f6067 P4D 0
[ 51.981384] Oops: Oops: 0000 [#1] SMP NOPTI
[ 51.986300] CPU: 49 UID: 0 PID: 3782 Comm: systemd-udevd Not tainted 6.17.0dj
test+ #64 PREEMPT(voluntary)
[ 51.997355] Hardware name:
[ 52.009790] RIP: 0010:cxl_feature_info+0xa/0x80 [cxl_core]
Add a check for cxlfs before dereferencing it and return -EOPNOTSUPP if
there is no cxlfs created due to no hardware support.
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)
2025-10-30
–
–
–
–
0.02%
2025-11-01
–
–
–
–
0.02%
2025-11-04
–
–
–
–
0.02%
2025-11-05
–
–
–
–
0.02%
2025-11-18
–
–
–
–
0.02%
2025-11-21
–
–
–
–
0.02%
2025-11-22
–
–
–
–
0.02%
2025-11-29
–
–
–
–
0.02%
2025-12-01
–
–
–
–
0.03%
2025-12-10
–
–
–
–
0.03%
2026-02-22
–
–
–
–
0.03%
2026-03-01
–
–
–
–
0.04%
2026-03-29
–
–
–
–
0.02%
2026-04-12
–
–
–
–
0.03%
2026-05-10
–
–
–
–
0.03%
2026-05-31
–
–
–
–
0.03%
2026-06-07
–
–
–
–
0.03%
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.