| Name | CVE-2019-12456 |
| Description | An issue was discovered in the MPT3COMMAND case in _ctl_ioctl_main in drivers/scsi/mpt3sas/mpt3sas_ctl.c in the Linux kernel through 5.1.5. It allows local users to cause a denial of service or possibly have unspecified other impact by changing the value of ioc_number between two kernel reads of that value, aka a "double fetch" vulnerability. NOTE: a third party reports that this is unexploitable because the doubly fetched value is not used |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| linux (PTS) | bullseye | 5.10.218-1 | vulnerable |
| bullseye (security) | 5.10.221-1 | vulnerable |
| bookworm | 6.1.94-1 | vulnerable |
| bookworm (security) | 6.1.99-1 | vulnerable |
| trixie | 6.9.10-1 | vulnerable |
| sid | 6.9.11-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| linux | source | (unstable) | (unfixed) | unimportant | | |
Notes
The double-fetched value is not used after the second fetch, thus an invalid issue
from security impact perspective. CVE should probably be rejected.