In the Linux kernel, the following vulnerability has been resolved:
comedi: fix divide-by-zero in comedi_buf_munge()
The comedi_buf_munge() function performs a modulo operation
`async->munge_chan %= async->cmd.chanlist_len` without first
checking if chanlist_len is zero. If a user program submits a command with
chanlist_len set to zero, this causes a divide-by-zero error when the device
processes data in the interrupt handler path.
Add a check for zero chanlist_len at the beginning of the
function, similar to the existing checks for !map and
CMDF_RAWDATA flag. When chanlist_len is zero, update
munge_count and return early, indicating the data was
handled without munging.
This prevents potential kernel panics from malformed user commands.
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)
2025-10-31
–
–
–
–
0.02%
2025-11-06
–
–
–
–
0.03%
2025-11-16
–
–
–
–
0.03%
2025-11-18
–
–
–
–
0.03%
2025-11-21
–
–
–
–
0.06%
2025-12-02
–
–
–
–
0.06%
2025-12-25
–
–
–
–
0.05%
2026-01-07
–
–
–
–
0.05%
2026-03-01
–
–
–
–
0.05%
2026-03-08
–
–
–
–
0.07%
2026-03-29
–
–
–
–
0.04%
2026-04-05
–
–
–
–
0.04%
2026-04-12
–
–
–
–
0.06%
2026-05-31
–
–
–
–
0.07%
2026-06-07
–
–
–
–
0.06%
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.