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
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | No fix yet | — |
| Debian 13 | linux | No fix yet | — |
| Debian 12 | linux | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | linux +3 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 | kernel-azure +2 | 4.12.14-5.33.1 | SUSE-SU-2019:1829-1 |
| SLES 15 | kernel-docs +6 | 4.12.14-150.27.1 | SUSE-SU-2019:1855-1 |
| SLES 12 SP4 | kernel-docs +4 | 4.12.14-95.24.1 | SUSE-SU-2019:1851-1 |
| SLES 12 SP3 | kernel-syms +2 | 4.4.180-94.100.1 | SUSE-SU-2019:1852-1 |
| SLES 12 SP3 | kgraft-patch-SLE12-SP3_Update_27 | 1-4.3.1 | SUSE-SU-2019:1852-1 |
| SLES 12 SP2 | kernel-syms +2 | 4.4.121-92.117.1 | SUSE-SU-2019:1823-2, SUSE-SU-2019:1823-1 |
| SLES 12 SP2 | kgraft-patch-SLE12-SP2_Update_31 | 1-3.3.1 | SUSE-SU-2019:1823-1 |
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.118.1 | SUSE-SU-2019:1870-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_35 | 1-2.3.1 | SUSE-SU-2019:1870-1 |
Show 14 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 | kernel-ec2 | 3.12.74-60.64.118.1 | SUSE-SU-2019:1870-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.111.1 | SUSE-SU-2020:14354-1 |
| SLES for SAP 12 SP4 | kernel-syms +2 | 4.12.14-95.24.1 | SUSE-SU-2019:1851-1 |
| SLES for SAP 12 SP3 | kernel-syms +2 | 4.4.180-94.100.1 | SUSE-SU-2019:1852-1 |
| SLES for SAP 12 SP3 | kgraft-patch-SLE12-SP3_Update_27 | 1-4.3.1 | SUSE-SU-2019:1852-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.121-92.117.1 | SUSE-SU-2019:1823-1 |
| SLES for SAP 12 SP2 | kgraft-patch-SLE12-SP2_Update_31 | 1-3.3.1 | SUSE-SU-2019:1823-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.118.1 | SUSE-SU-2019:1870-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_35 | 1-2.3.1 | SUSE-SU-2019:1870-1 |
| SLE Real Time 12 SP4 | kernel-rt +3 | 4.12.14-8.3.1 | SUSE-SU-2019:2450-1 |
| SLE Live Patching 15 | kernel-default | 4.12.14-150.27.1 | SUSE-SU-2019:1855-1 |
| SLE Live Patching 15 | kernel-livepatch-SLE15_Update_12 | 1-1.5.1 | SUSE-SU-2019:1855-1 |
| SLE Live Patching 12 SP4 | kgraft-patch-SLE12-SP4_Update_6 | 1-6.5.1 | SUSE-SU-2019:1851-1 |
| SUSE Real Time Module 15 SP1 | kernel-rt +3 | 4.12.14-14.8.1 | SUSE-SU-2019:2430-1 |
| SUSE OpenStack Cloud 8 | kernel-syms +2 | 4.4.180-94.100.1 | SUSE-SU-2019:1852-1 |
| SUSE OpenStack Cloud 8 | kgraft-patch-SLE12-SP3_Update_27 | 1-4.3.1 | SUSE-SU-2019:1852-1 |
| SUSE OpenStack Cloud 7 | kernel-syms +2 | 4.4.121-92.117.1 | SUSE-SU-2019:1823-1 |
| SUSE OpenStack Cloud 7 | kgraft-patch-SLE12-SP2_Update_31 | 1-3.3.1 | SUSE-SU-2019:1823-1 |
| SUSE Enterprise Storage 5 | kernel-syms +2 | 4.4.180-94.100.1 | SUSE-SU-2019:1852-1 |
| SUSE Enterprise Storage 5 | kgraft-patch-SLE12-SP3_Update_27 | 1-4.3.1 | SUSE-SU-2019:1852-1 |
| SUSE Enterprise Storage 4 | kernel-syms +2 | 4.4.121-92.117.1 | SUSE-SU-2019:1823-1 |
| SUSE Enterprise Storage 4 | kgraft-patch-SLE12-SP2_Update_31 | 1-3.3.1 | SUSE-SU-2019:1823-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.1 | kernel-docs +8 | 4.12.14-lp151.28.7.1 | openSUSE-SU-2019:1571-1 |
| openSUSE Leap 15.0 | kernel-docs +8 | 4.12.14-lp150.12.64.1 | openSUSE-SU-2019:1579-1 |
Advisories 12
- SUSE-SU-2020:14354-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1823-2 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1855-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1851-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2450-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1571-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1852-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1829-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2019:1579-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1870-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:2430-1 Security update for kernel-source-rt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2019:1823-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.3/scsi-queue&id=86e5aca7fa2927060839f3e3b40c8bd65a7e8d1e
- https://lkml.org/lkml/2019/5/29/1164
- FEDORA-2019-c03eda3cc6 vendor-advisory
- FEDORA-2019-83858fc57b vendor-advisory
- openSUSE-SU-2019:1570 vendor-advisory
- openSUSE-SU-2019:1571 vendor-advisory
- openSUSE-SU-2019:1579 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1717182
- https://support.f5.com/csp/article/K84310302
- https://support.f5.com/csp/article/K84310302?utm_source=f5support&%3Butm_medium=RSS