Description
The get_rx_bufs function in drivers/vhost/net.c in the vhost-net subsystem in the Linux kernel package before 2.6.32-431.11.2 on Red Hat Enterprise Linux (RHEL) 6 does not properly handle vhost_get_vq_desc errors, which allows guest OS users to cause a denial of service (host OS crash) via unspecified vectors.
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 | 3.13.10-1 | — |
| Debian 13 | linux | 3.13.10-1 | — |
| Debian 12 | linux | 3.13.10-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +16 | 2.6.32-431.11.2.el6 | RHSA-2014:0328 |
| RHEL 6 | rhev-hypervisor6 | 6.5-20140324.0.el6ev | RHSA-2014:0339 |
Advisories 2
- RHSA-2014:0328 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2014:0339 Red Hat Security Advisory: rhev-hypervisor6 security update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- RHSA-2014:0328 vendor-advisory
- 59386 third-party-advisory
- 66441 vdb-entry
- RHSA-2014:0339 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1062577