4.7 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
8.6%
mm/shmem.c in the Linux kernel through 3.15.1 does not properly implement the interaction between range notification and hole punching, which allows local users to cause a denial of service (i_mutex hold) by using the mmap system call to access a hole, as demonstrated by interfering with intended shmem activity by blocking completion of (1) an MADV_REMOVE madvise call or (2) an FALLOC_FL_PUNCH_HOLE fallocate call.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 3.14.15-1 | linux_3.14.15-1_all.deb |
Debian | 11 | all | linux | < 3.14.15-1 | linux_3.14.15-1_all.deb |
Debian | 10 | all | linux | < 3.14.15-1 | linux_3.14.15-1_all.deb |
Debian | 999 | all | linux | < 3.14.15-1 | linux_3.14.15-1_all.deb |
Debian | 13 | all | linux | < 3.14.15-1 | linux_3.14.15-1_all.deb |