Description
Race condition in the sctp_wait_for_sndbuf function in net/sctp/socket.c in the Linux kernel before 4.9.11 allows local users to cause a denial of service (assertion failure and panic) via a multithreaded application that peels off an association in a certain buffer-full state.
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 | 4.9.10-1 | — |
| Debian 13 | linux | 4.9.10-1 | — |
| Debian 12 | linux | 4.9.10-1 | — |
| Debian 8 | linux | 3.16.39-1+deb8u2 | DSA-3804-1 |
| Debian 7 | linux | 3.2.86-1 | DLA-849-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-gcp-6.11 +4 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +4 | No fix yet | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-75.96 | USN-3265-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1016.25 | USN-3265-1 |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1012.12 | USN-3265-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.8.0-56.61~16.04.1 | USN-3266-2 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1054.61 | USN-3265-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1057.61 | USN-3265-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-117.164 | USN-3264-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-75.96~14.04.1 | USN-3265-2 |
| Ubuntu Pro 20.04 LTS | linux-azure-fde-5.15 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 7 | perf +18 | 3.10.0-514.21.1.el7 | RHSA-2017:1308 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP2 | kernel-docs | 4.4.49-92.11.3 | SUSE-SU-2017:0575-1 |
| SLES 12 SP2 | kernel-syms +3 | 4.4.49-92.11.1 | SUSE-SU-2017:0575-1 |
| SLES 12 SP1 | kernel-docs | 3.12.74-60.64.40.4 | SUSE-SU-2017:1360-1 |
| SLES 12 SP1 | kernel-xen +4 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES 12 | kernel-ec2 +4 | 3.12.61-52.72.1 | SUSE-SU-2017:1360-1, SUSE-SU-2017:1247-1 |
| SLES 12 | kgraft-patch-SLE12_Update_21 | 1-2.1 | SUSE-SU-2017:1247-1 |
| SLES 11 SP4 | kernel-docs | 3.0.101-100.2 | SUSE-SU-2017:1301-1 |
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-100.1 | SUSE-SU-2017:1301-1 |
| SLES 11 SP3 | kernel-ec2 +7 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Show 8 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP2 | kernel-syms +2 | 4.4.49-92.11.1 | SUSE-SU-2017:0575-1 |
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES for SAP 12 | kernel-xen +3 | 3.12.61-52.72.1 | SUSE-SU-2017:1247-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_21 | 1-2.1 | SUSE-SU-2017:1247-1 |
| SLES for SAP 11 SP4 | kernel-ec2 +8 | 3.0.101-100.1 | SUSE-SU-2017:1301-1 |
| SLE Real Time 12 SP2 | kernel-rt +3 | 4.4.74-7.10.1 | SUSE-SU-2017:1990-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-69.5.1 | SUSE-SU-2017:2342-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP1_Update_15 | 1-4.1 | SUSE-SU-2017:1360-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_5 | 1-6.1 | SUSE-SU-2017:0575-1 |
| SUSE Linux Enterprise Point of Sale 11 SP3 | kernel-ec2 +6 | 3.0.101-0.47.106.5.1 | SUSE-SU-2017:2525-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el6uek | 0.4.5-3.el6 | ELSA-2017-3566 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.18.2.el7uek | 0.4.5-3.el7 | ELSA-2017-3566 |
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.34.el6uek | 0.5.3-2.el6 | ELSA-2017-3539 |
| Oracle Linux 7 | dtrace-modules-4.1.12-61.1.34.el7uek | 0.5.3-2.el7 | ELSA-2017-3539 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.18.2.el7uek | ELSA-2017-3566, ELSA-2017-3539 |
| Oracle Linux 7 | perf +11 | 3.10.0-514.21.1.el7 | ELSA-2017-1308 |
Advisories 18
- WID-SEC-2026-3895 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 13, 2026
- RHSA-2017:1308 Red Hat Security Advisory: kernel security, bug fix, and enhancement update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- USN-3265-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- USN-3264-1 linux vulnerability Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-849-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3804-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3265-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-3266-2 linux-hwe vulnerability Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:1247-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2525-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:0575-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1360-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1301-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:1990-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:2342-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-1308 Important: kernel security, bug fix, and enhancement update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 26, 2017
- ELSA-2017-3566 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · May 16, 2017
- ELSA-2017-3539 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 13, 2017
References
- RHSA-2017:1308 vendor-advisory
- https://github.com/torvalds/linux/commit/2dcab598484185dea7ec22219c76dcdd59e3cb90
- [oss-security] 20170214 Re: Linux kernel: Reachable BUG_ON from userspace in sctp_wait_for_sndbuf() mailing-list
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2dcab598484185dea7ec22219c76dcdd59e3cb90
- https://bugzilla.redhat.com/show_bug.cgi?id=1420276
- 96222 vdb-entry
- DSA-3804 vendor-advisory
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.11