Description
In the Linux kernel through 4.14.13, the rds_cmsg_atomic function in net/rds/rdma.c mishandles cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference.
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 | 4.14.17-1 | — |
| Debian 13 | linux | 4.14.17-1 | — |
| Debian 12 | linux | 4.14.17-1 | — |
| Debian 8 | linux | 3.16.56-1 | DSA-4187-1 |
| Debian 7 | linux | 3.2.101-1 | DLA-1369-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-119.143 | USN-3619-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1054.63 | USN-3619-1 |
| Ubuntu 16.04 LTS | linux-azure | 4.13.0-1014.17 | USN-3632-1 |
| Ubuntu 16.04 LTS | linux-gcp | 4.13.0-1012.16 | USN-3617-2 |
| Ubuntu 16.04 LTS | linux-hwe | 4.13.0-41.46~16.04.1 | USN-3617-2 |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1020.25 | USN-3619-1 |
| Ubuntu 16.04 LTS | linux-oem | 4.13.0-1022.24 | USN-3617-2 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1086.94 | USN-3619-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1088.93 | USN-3619-1 |
| Ubuntu 14.04 LTS | linux | 3.13.0-142.191 | USN-3583-1 |
| Ubuntu 14.04 LTS | linux-aws | 4.4.0-1016.16 | USN-3619-2 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-119.143~14.04.1 | USN-3619-2 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1008.10 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-693.21.1.rt56.607.el6rt | RHSA-2018:0470 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | kernel-default +1 | 4.4.114-94.11.3 | SUSE-SU-2018:0383-1 |
| SLES 12 SP3 | kernel-docs | 4.4.114-94.11.4 | SUSE-SU-2018:0383-1 |
| SLES 12 SP3 | kernel-syms +1 | 4.4.114-94.11.2 | SUSE-SU-2018:0383-1 |
| SLES 12 SP2 | kernel-docs | 4.4.114-92.64.2 | SUSE-SU-2018:0416-1 |
| SLES 12 SP2 | kernel-syms +3 | 4.4.114-92.64.1 | SUSE-SU-2018:0416-1 |
| SLES 12 SP1 | kernel-xen +3 | 3.12.74-60.64.85.1 | SUSE-SU-2018:0848-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_26 | 1-2.3.1 | SUSE-SU-2018:0848-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.125.1 | SUSE-SU-2018:0848-1, SUSE-SU-2018:0834-1 |
| SLES 12 | kgraft-patch-SLE12_Update_33 | 1-1.3.1 | SUSE-SU-2018:0834-1 |
| SLES 11 SP4 | cluster-network | 1.4-2.32.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | drbd | 8.4.4-0.27.4.2 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | drbd-kmp | 8.4.4-0.27.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | gfs2 | 2-0.24.4.6 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | kernel-ec2 +9 | 3.0.101-108.35.1 | SUSE-SU-2018:0555-1 |
| SLES 11 SP4 | ocfs2 | 1.6-0.28.5.6 | SUSE-SU-2018:0555-1 |
Show 12 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.19.1 | SUSE-SU-2018:0660-1 |
| SLES for SAP 12 SP3 | kernel-default | 4.4.114-94.11.3 | SUSE-SU-2018:0383-1 |
| SLES for SAP 12 SP3 | kernel-syms +1 | 4.4.114-94.11.2 | SUSE-SU-2018:0383-1 |
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.114-92.64.1 | SUSE-SU-2018:0416-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.85.1 | SUSE-SU-2018:0848-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_26 | 1-2.3.1 | SUSE-SU-2018:0848-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-108.35.1 | SUSE-SU-2018:0555-1 |
| SLE Real Time 12 SP3 | kernel-rt +3 | 4.4.120-3.8.1 | SUSE-SU-2018:0986-1 |
| SLE Real Time 12 SP2 | kernel-rt +3 | 4.4.114-27.1 | SUSE-SU-2018:0482-1 |
| SLE Real Time 11 SP4 | cluster-network | 1.4-2.32.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | drbd-kmp | 8.4.4-0.27.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | gfs2 | 2-0.24.4.6 | SUSE-SU-2018:0555-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.21.1 | SUSE-SU-2018:0841-1 |
| SLE Real Time 11 SP4 | ocfs2 | 1.6-0.28.5.6 | SUSE-SU-2018:0555-1 |
| SLE Live Patching 12 SP3 | kgraft-patch-SLE12-SP3_Update_8 | 1-4.3.5 | SUSE-SU-2018:0383-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_18 | 1-3.3.2 | SUSE-SU-2018:0416-1 |
| SUSE OpenStack Cloud 6 | kernel-xen +3 | 3.12.74-60.64.85.1 | SUSE-SU-2018:0848-1 |
| SUSE OpenStack Cloud 6 | kgraft-patch-SLE12-SP1_Update_26 | 1-2.3.1 | SUSE-SU-2018:0848-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.19.1 | SUSE-SU-2018:0660-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | kernel-source | 5.14.6-1.4 | openSUSE-SU-2024:13704-1, openSUSE-SU-2024:10728-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | kernel-uek +34 | 6.12.0-101.33.4.3.el10uek | ELSA-2025-20530, ELSA-2025-20480 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.23.1.el6uek | 0.4.5-3.el6 | ELSA-2018-4193 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.23.1.el7uek | 0.4.5-3.el7 | ELSA-2018-4193 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.23.1.el7uek | ELSA-2018-4193, ELSA-2018-4114 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
Reliable Datagram Sockets (RDS) rds_atomic_free_op NULL pointer dereference Privilege Escalation
exploit/linux/local/rds_atomic_free_op_null_pointer_deref_priv_esc
Exploit-DB 1
- Reliable Datagram Sockets (RDS) - rds_atomic_free_op NULL pointer dereference Privilege Escalation (Metasploit) EDB-47957 · local · Jan 23, 2020 · verified
GitHub 1 repository
-
WhatsWrongAndWhy/CVE-2018-5333 ★ 0 · Jul 21, 2026
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 25
- RHSA-2018:0470 Red Hat Security Advisory: Red Hat Enterprise MRG Realtime 2.5 security and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-3619-1 linux, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3583-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4187-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1369-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3632-1 linux-azure vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3619-2 linux-lts-xenial, linux-aws vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3617-2 linux-hwe, linux-gcp, linux-oem vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- openSUSE-SU-2024:13704-1 kernel-devel-longterm-6.6.17-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0834-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0555-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0841-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0986-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0660-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0482-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0383-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10728-1 kernel-devel-5.14.6-1.4 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0416-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- WID-SEC-2022-0532 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Sep 11, 2025
- ELSA-2025-20530 Important: Unbreakable Enterprise kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Aug 18, 2025
- WID-SEC-2025-1600 Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service BSI CERT-Bund (WID) · Jul 20, 2025
- ELSA-2025-20480 Important: Unbreakable Enterprise kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 17, 2025
- SUSE-SU-2018:0848-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2018-4193 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Aug 9, 2018
- ELSA-2018-4114 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 22, 2018
References
- DSA-4187 vendor-advisory
- USN-3617-1 vendor-advisory
- USN-3619-2 vendor-advisory
- USN-3617-3 vendor-advisory
- USN-3583-2 vendor-advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7d11f77f84b27cef452cee332f4e469503084737
- USN-3632-1 vendor-advisory
- USN-3583-1 vendor-advisory
- 102510 vdb-entry
- RHSA-2018:0470 vendor-advisory
- [debian-lts-announce] 20180502 [SECURITY] [DLA 1369-1] linux security update mailing-list
- USN-3617-2 vendor-advisory
- https://github.com/torvalds/linux/commit/7d11f77f84b27cef452cee332f4e469503084737
- USN-3619-1 vendor-advisory
- http://packetstormsecurity.com/files/156053/Reliable-Datagram-Sockets-RDS-rds_atomic_free_op-Privilege-Escalation.html