CVE-2022-48773 xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create
Medium 5.5
Published
Updated
Check this codebase for CVE-2022-48773 and fix it if it is affected.
What it is: CVE-2022-48773 is a medium-severity vulnerability in Linux kernel, published on 16 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-48773 in the wild and no public exploit code.
Affected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2022-48773/ (Markdown: https://insights.sbomify.com/CVE-2022-48773/index.md)
A null pointer dereference in the Linux kernel's xprtrdma module can cause a system crash during error handling in rpcrdma_ep_create.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-48773?
CVE-2022-48773 is a medium-severity vulnerability in Linux kernel, published on 16 Jul 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create
If there are failures then we must not leave the non-NULL pointers with the error value, otherwise `rpcrdma_ep_destroy` gets confused and tries free them, resulting in an Oops.
Weakness: CWE-476
Which versions are affected by CVE-2022-48773?
It affects 1 product.
Linux distribution packages (28)
kernel-rt Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-core Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-core Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-debuginfo Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-devel Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-kvm Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-modules Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-modules-extra Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debuginfo Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debuginfo-common-x86_64 Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-devel Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-kvm Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-modules Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-modules-extra Red Hat:rhel_tus:8.4::nfv | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-core Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-core Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-debuginfo Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-devel Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-modules Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debug-modules-extra Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debuginfo Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-debuginfo-common-x86_64 Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-devel Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-modules Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
kernel-rt-modules-extra Red Hat:rhel_tus:8.4::realtime | All versions | 0:4.18.0-305.145.1.rt7.221.el8_4 |
Products include Linux kernel.
How do I fix CVE-2022-48773?
Apply the vendor's patch.
Is CVE-2022-48773 being exploited?
There is no known exploitation of CVE-2022-48773 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as DEBIAN-CVE-2022-48773, GHSA-gv9g-w43h-w5vw, RHSA-2024:10275, UBUNTU-CVE-2022-48773.