CVE-2023-1078

High

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux Kernel
PublishedMar 27, 2023
First seenMar 27, 2023

How to fix

Update
  • linux linux_kernel4.19.273, 5.4.232, 5.10.168, 5.15.94, 6.1.12 or later

Affected products

ProductAffected versionsFixed in
linux linux_kernel4.17 ≤ v < 4.19.273, 4.20 ≤ v < 5.4.232, 5.5 ≤ v < 5.10.168, 5.11 ≤ v < 5.15.94, 5.16 ≤ v < 6.1.124.19.273, 5.4.232, 5.10.168, 5.15.94, 6.1.12

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