Description
The rds_ib_xmit function in net/rds/ib_send.c in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel 3.7.4 and earlier allows local users to cause a denial of service (BUG_ON and kernel panic) by establishing an RDS connection with the source IP address equal to the IPoIB interface's own IP address, as demonstrated by rds-ping.
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 | 3.11.10-1 | — |
| Debian 13 | linux | 3.11.10-1 | — |
| Debian 12 | linux | 3.11.10-1 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-220.23.1.el6 | RHSA-2012:0743 |
| RHEL 5 | kernel +12 | 2.6.18-308.24.1.el5 | RHSA-2012:1540 |
Advisories 2
- RHSA-2012:1540 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- RHSA-2012:0743 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
References
- RHSA-2012:1540 vendor-advisory
- USN-1556-1 vendor-advisory
- RHSA-2012:0743 vendor-advisory
- https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=c7b6a0a1d8d636852be130fa15fa8be10d4704e8
- 54062 vdb-entry
- SUSE-SU-2012:1679 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=822754
- USN-1555-1 vendor-advisory
- USN-1529-1 vendor-advisory
- HPSBGN02970 vendor-advisory