CVE-2023-1078 — A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol

A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_inf

01What is this vulnerability?

A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `struct rds_msg_zcopy_info *info` actually points to something else that is potentially controlled by local user. It is known how to trigger…

02Affected products

Vendor	Product	Versions
n	a / Linux kernel	unknown

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-03-27T00:00:00.000Z
• Last modified: 2025-05-05T16:07:12.732Z

09References

• git.kernel.org — https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=f…
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
• lists.debian.org — https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html
• security.netapp.com — https://security.netapp.com/advisory/ntap-20230505-0004/
• www.openwall.com — http://www.openwall.com/lists/oss-security/2023/11/05/1