Description
The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.
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 | 4.1.5-1 | — |
| Debian 13 | linux | 4.1.5-1 | — |
| Debian 12 | linux | 4.1.5-1 | — |
| Debian 8 | linux | 3.16.7-ckt11-1+deb8u4 | DSA-3364-1 |
| Debian 7 | linux | 3.2.68-1+deb7u4 | DSA-3364-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 6.0 | linux-2.6 | 2.6.32-48squeeze14 | DLA-310-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-riscv +6 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +4 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +3 | No fix yet | — |
| Ubuntu 14.04 LTS | linux | 3.13.0-66.108 | USN-2776-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-51.69~14.04.1 | USN-2777-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-31.36~14.04.1 | USN-2778-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | kernel-kdump +4 | 3.10.0-229.20.1.el7 | RHSA-2015:1978 |
| RHEL 7 | kernel-rt +7 | 3.10.0-229.20.1.rt56.141.14.el7_1 | RHSA-2015:1977 |
| RHEL 7 | perf +13 | 3.10.0-229.20.1.ael7b | RHSA-2015:1978 |
| RHEL 6 | perf +16 | 2.6.32-642.el6 | RHSA-2016:0855 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | kernel-obs-build | 3.12.51-60.20.1 | SUSE-SU-2015:2292-1 |
| SLES 12 SP1 | kernel-xen +4 | 3.12.51-60.20.2 | SUSE-SU-2015:2292-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.48-52.27.1 | SUSE-SU-2015:2292-1, SUSE-SU-2015:1727-1 |
| SLES 12 | kernel-xen +1 | 3.12.48-52.27.2 | SUSE-SU-2015:1727-1 |
| SLES 11 SP4 | kernel-ec2 +9 | 3.0.101-108.38.1 | SUSE-SU-2018:1080-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.22.1 | SUSE-SU-2018:1172-1 |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.51-60.20.2 | SUSE-SU-2015:2292-1 |
| SLES for SAP 12 | kernel-syms +2 | 3.12.48-52.27.1 | SUSE-SU-2015:1727-1 |
| SLES for SAP 12 | kernel-xen | 3.12.48-52.27.2 | SUSE-SU-2015:1727-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.38.1 | SUSE-SU-2018:1080-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.24.1 | SUSE-SU-2018:1309-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_1 | 1-4.1 | SUSE-SU-2015:2292-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12_Update_8 | 1-2.6 | SUSE-SU-2015:1727-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.22.1 | SUSE-SU-2018:1172-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-98.5.2.el6uek | 0.4.5-3.el6 | ELSA-2015-3092 |
| Oracle Linux 7 | dtrace-modules-3.8.13-98.5.2.el7uek | 0.4.5-3.el7 | ELSA-2015-3092 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-98.5.2.el7uek | ELSA-2015-3092 |
| Oracle Linux 7 | perf +11 | 3.10.0-229.20.1.el7 | ELSA-2015-1978 |
Advisories 15
- RHSA-2016:0855 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:1977 Red Hat Security Advisory: kernel-rt security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2015:1978 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-2776-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3364-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-310-1 linux-2.6 - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2777-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2778-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:1727-1 Security update for kernel-source SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1080-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1309-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:1172-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2292-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- ELSA-2015-3092 Moderate: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 4, 2015
- ELSA-2015-1978 Moderate: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Nov 3, 2015
References
- SUSE-SU-2015:2292 vendor-advisory
- RHSA-2016:0855 vendor-advisory
- DSA-3364 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- SUSE-SU-2015:1727 vendor-advisory
- RHSA-2015:1978 vendor-advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
- FEDORA-2015-0253d1f070 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
- https://github.com/torvalds/linux/commit/48900cb6af4282fa0fb6ff4d72a81aa3dadb5c39
- http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
- 76230 vdb-entry
- USN-2774-1 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1243852
- USN-2773-1 vendor-advisory
- FEDORA-2015-c15f00eb95 vendor-advisory
- 1034045 vdb-entry
- USN-2777-1 vendor-advisory