CVE-2023-1078

HIGH
7.8
CVSS Score
Published: March 27, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:27 AM UTC
2 products affected across 2 vendorsLinux KernelKernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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 this, which causes an out of bounds access, and a lock corruption.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.17 ≤ v < 4.19.2734.20 ≤ v < 5.4.2325.11 ≤ v < 5.15.945.16 ≤ v < 6.1.125.5 ≤ v < 5.10.168
Affected range stops below 4.19.273, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.10.168, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.15.94, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.232, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.12, so it looks safe — our inference, not a vendor statement
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787CWE-843

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