Unrated severityNVD Advisory· Published Jul 12, 2024· Updated May 4, 2025

RDMA/rxe: Fix responder length checking for UD request packets

CVE-2024-40992

Description

In the Linux kernel, the following vulnerability has been resolved:

According to the IBA specification: If a UD request packet is detected with an invalid length, the request shall be an invalid request and it shall be silently dropped by the responder. The responder then waits for a new request packet.

commit 689c5421bfe0 ("RDMA/rxe: Fix incorrect responder length checking") defers responder length check for UD QPs in function copy_data. But it introduces a regression issue for UD QPs.

When the packet size is too large to fit in the receive buffer. copy_data will return error code -EINVAL. Then send_data_in will return RESPST_ERR_MALFORMED_WQE. UD QP will transfer into ERROR state.

Affected products

osv-coords49 versions
pkg:rpm/opensuse/dtb-aarch64&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-64kb&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default-base&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-default&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-docs&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-kvmsmall&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-build&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-obs-qa&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt_debug&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-source-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-azure&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-syms-rt&distro=openSUSE%20Leap%2015.6 pkg:rpm/opensuse/kernel-zfcpdump&distro=openSUSE%20Leap%2015.6 pkg:rpm/suse/kernel-64kb&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20High%20Availability%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Legacy%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP6 pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-docs&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0-RT_Update_2&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-MICRO-6-0_Update_2&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-livepatch-SLE15-SP6-RT_Update_2&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-livepatch-SLE15-SP6_Update_4&distro=SUSE%20Linux%20Enterprise%20Live%20Patching%2015%20SP6 pkg:rpm/suse/kernel-obs-build&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-rt_debug&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-source-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Linux%20Micro%206.0 pkg:rpm/suse/kernel-source-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-syms-azure&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Public%20Cloud%2015%20SP6 pkg:rpm/suse/kernel-syms&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Development%20Tools%2015%20SP6 pkg:rpm/suse/kernel-syms-rt&distro=SUSE%20Real%20Time%20Module%2015%20SP6 pkg:rpm/suse/kernel-zfcpdump&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP6
< 6.4.0-150600.23.22.1+ 48 more
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1.150600.12.8.3
- (no CPE)range: < 6.4.0-17.1.1.51
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-1.1
- (no CPE)range: < 1-150600.1.3.2
- (no CPE)range: < 1-150600.13.3.3
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-19.1
- (no CPE)range: < 6.4.0-10.1
- (no CPE)range: < 6.4.0-150600.10.8.3
- (no CPE)range: < 6.4.0-150600.8.11.1
- (no CPE)range: < 6.4.0-150600.23.22.1
- (no CPE)range: < 6.4.0-150600.10.8.1
- (no CPE)range: < 6.4.0-150600.23.22.1
Linux/Linuxcpe-rescue
Range: 6.2

Patches

f67ac0061c76

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

943c94f41dfe

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

163868ec1f6c

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.gitvia osv

commit

Vulnerability mechanics

Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.

References

News mentions

No linked articles in our index yet.

cvss	0.000
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000