Description
The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel through 4.10.11 allows remote attackers to cause a denial of service (system crash) via a long RPC reply, related to net/sunrpc/svc.c, fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c.
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 | 4.9.25-1 | — |
| Debian 13 | linux | 4.9.25-1 | — |
| Debian 12 | linux | 4.9.25-1 | — |
| Debian 8 | linux | 3.16.43-2+deb8u1 | DSA-3886-1 |
| Debian 7 | linux | 3.2.89-1 | DLA-993-1 |
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 16.04 LTS | linux | 4.4.0-79.100 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1018.27 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-gke | 4.4.0-1014.14 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-hwe | 4.10.0-32.36~16.04.1 | USN-3361-1 |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1057.64 | USN-3312-1 |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1059.63 | USN-3312-1 |
| Ubuntu 14.04 LTS | linux | 3.13.0-157.207 | USN-3754-1 |
| Ubuntu 14.04 LTS | linux-lts-xenial | 4.4.0-79.100~14.04.1 | USN-3312-2 |
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-rt +10 | 3.10.0-514.26.1.rt56.442.el7 | RHSA-2017:1616 |
| RHEL 7 | perf +18 | 3.10.0-514.26.1.el7 | RHSA-2017:1615 |
| RHEL 6 | perf +16 | 2.6.32-696.28.1.el6 | RHSA-2018:1319 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Red Hat MRG 2 | kernel-rt +10 | 1:3.10.0-514.rt56.228.el6rt | RHSA-2017:1647 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| 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 SP1 | kgraft-patch-SLE12-SP1_Update_10 | 8-2.1 | SUSE-SU-2017:2072-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_11 | 7-2.1 | SUSE-SU-2017:2073-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_12 | 6-2.1 | SUSE-SU-2017:2049-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_13 | 5-2.1 | SUSE-SU-2017:2092-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_14 | 4-2.1 | SUSE-SU-2017:2091-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_7 +1 | 10-2.1 | SUSE-SU-2017:2088-1, SUSE-SU-2017:2060-1 |
| SLES 12 SP1 | kgraft-patch-SLE12-SP1_Update_9 | 9-2.1 | SUSE-SU-2017:2061-1 |
| SLES 12 | kernel-ec2 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES 12 | kgraft-patch-SLE12_Update_16 | 8-2.1 | SUSE-SU-2017:2099-1 |
| SLES 12 | kgraft-patch-SLE12_Update_17 +1 | 7-2.1 | SUSE-SU-2017:2095-1, SUSE-SU-2017:2093-1 |
| SLES 12 | kgraft-patch-SLE12_Update_19 | 6-2.1 | SUSE-SU-2017:2096-1 |
| SLES 12 | kgraft-patch-SLE12_Update_20 | 4-2.1 | SUSE-SU-2017:2103-1 |
| SLES 12 | kgraft-patch-SLE12_Update_21 +1 | 3-2.1 | SUSE-SU-2017:2102-1, SUSE-SU-2017:2100-1 |
| SLES 12 | kgraft-patch-SLE12_Update_23 | 2-2.1 | SUSE-SU-2017:2098-1 |
| SLES 12 | kgraft-patch-SLE12_Update_24 +2 | 2-2.2 | SUSE-SU-2017:2497-1, SUSE-SU-2017:2476-1, SUSE-SU-2017:2475-1 |
| SLES 12 | kgraft-patch-SLE12_Update_27 | 2-4.1 | SUSE-SU-2017:2775-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | kernel-xen +3 | 3.12.74-60.64.40.1 | SUSE-SU-2017:1360-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_10 | 8-2.1 | SUSE-SU-2017:2072-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_11 | 7-2.1 | SUSE-SU-2017:2073-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_12 | 6-2.1 | SUSE-SU-2017:2049-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_13 | 5-2.1 | SUSE-SU-2017:2092-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_14 | 4-2.1 | SUSE-SU-2017:2091-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_7 +1 | 10-2.1 | SUSE-SU-2017:2088-1, SUSE-SU-2017:2060-1 |
| SLES for SAP 12 SP1 | kgraft-patch-SLE12-SP1_Update_9 | 9-2.1 | SUSE-SU-2017:2061-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_16 | 8-2.1 | SUSE-SU-2017:2099-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_17 +1 | 7-2.1 | SUSE-SU-2017:2095-1, SUSE-SU-2017:2093-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_19 | 6-2.1 | SUSE-SU-2017:2096-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_20 | 4-2.1 | SUSE-SU-2017:2103-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_21 +1 | 3-2.1 | SUSE-SU-2017:2102-1, SUSE-SU-2017:2100-1 |
| SLES for SAP 12 | kgraft-patch-SLE12_Update_23 | 2-2.1 | SUSE-SU-2017:2098-1 |
| 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_0 | 8-18.7.1 | SUSE-SU-2017:2062-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_1 | 8-2.1 | SUSE-SU-2017:2067-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_2 +2 | 7-2.1 | SUSE-SU-2017:2068-1, SUSE-SU-2017:2065-1, SUSE-SU-2017:2043-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_5 | 5-2.1 | SUSE-SU-2017:2063-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_6 | 4-2.1 | SUSE-SU-2017:2070-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_7 +1 | 3-2.1 | SUSE-SU-2017:2064-1, SUSE-SU-2017:2046-1 |
| SLE Live Patching 12 | kgraft-patch-SLE12-SP2_Update_9 | 2-2.1 | SUSE-SU-2017:2066-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.19.2.el6uek | 0.4.5-3.el6 | ELSA-2017-3590 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.19.2.el7uek | 0.4.5-3.el7 | ELSA-2017-3590 |
| Oracle Linux 7 | dtrace-modules-4.1.12-94.3.8.el6uek | 0.6.0-4.el6 | ELSA-2017-3589 |
| Oracle Linux 7 | dtrace-modules-4.1.12-94.3.8.el7uek | 0.6.0-4.el7 | ELSA-2017-3589 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.19.2.el7uek | ELSA-2017-3590, ELSA-2017-3589 |
| Oracle Linux 7 | perf +11 | 3.10.0-514.26.1.el7 | ELSA-2017-1615 |
Advisories 44
- RHSA-2017:1647 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1616 Red Hat Security Advisory: kernel-rt security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2017:1615 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2018:1319 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 28, 2026
- USN-3361-1 linux-hwe vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3754-1 linux vulnerabilities Ubuntu Security Notices (USN) · Jun 3, 2026
- USN-3312-1 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DLA-993-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-3886-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-3312-2 linux-lts-xenial vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2017:2476-1 Security update for Linux Kernel Live Patch 26 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2063-1 Security update for Linux Kernel Live Patch 5 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2073-1 Security update for Linux Kernel Live Patch 11 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2062-1 Security update for Linux Kernel Live Patch 0 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2092-1 Security update for Linux Kernel Live Patch 13 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2099-1 Security update for Linux Kernel Live Patch 16 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2060-1 Security update for Linux Kernel Live Patch 7 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2068-1 Security update for Linux Kernel Live Patch 2 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2095-1 Security update for Linux Kernel Live Patch 18 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2775-1 Security update for Linux Kernel Live Patch 27 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2061-1 Security update for Linux Kernel Live Patch 9 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2102-1 Security update for Linux Kernel Live Patch 22 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2096-1 Security update for Linux Kernel Live Patch 19 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2064-1 Security update for Linux Kernel Live Patch 7 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2088-1 Security update for Linux Kernel Live Patch 8 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2072-1 Security update for Linux Kernel Live Patch 10 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2103-1 Security update for Linux Kernel Live Patch 20 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2093-1 Security update for Linux Kernel Live Patch 17 for SLE 12 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-2017:2497-1 Security update for Linux Kernel Live Patch 24 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2475-1 Security update for Linux Kernel Live Patch 25 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2066-1 Security update for Linux Kernel Live Patch 9 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2065-1 Security update for Linux Kernel Live Patch 4 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2098-1 Security update for Linux Kernel Live Patch 23 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2046-1 Security update for Linux Kernel Live Patch 8 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2100-1 Security update for Linux Kernel Live Patch 21 for SLE 12 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2049-1 Security update for Linux Kernel Live Patch 12 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2091-1 Security update for Linux Kernel Live Patch 14 for SLE 12 SP1 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2043-1 Security update for Linux Kernel Live Patch 3 for SLE 12 SP2 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2017:2070-1 Security update for Linux Kernel Live Patch 6 for SLE 12 SP2 SUSE / openSUSE Security Updates · May 2, 2025
- SUSE-SU-2017:2067-1 Security update for Linux Kernel Live Patch 1 for SLE 12 SP2 SUSE / openSUSE Security Updates · May 2, 2025
- ELSA-2017-3590 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 30, 2017
- ELSA-2017-3589 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 30, 2017
- ELSA-2017-1615 Important: kernel security and bug fix update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Jun 28, 2017
References
- https://marc.info/?l=linux-nfs&m=149247516212924&w=2
- RHSA-2017:1615 vendor-advisory
- USN-3754-1 vendor-advisory
- RHSA-2017:1647 vendor-advisory
- RHSA-2017:1616 vendor-advisory
- RHSA-2018:1319 vendor-advisory
- https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6e
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0
- 97950 vdb-entry
- https://marc.info/?l=linux-nfs&m=149218228327497&w=2
- DSA-3886 vendor-advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6e