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Red Hat: CVE-2024-26872: kernel: RDMA/srpt: Do not register event handler until srpt device is fully setup (Multiple Advisories)

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Red Hat: CVE-2024-26872: kernel: RDMA/srpt: Do not register event handler until srpt device is fully setup (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
04/17/2024
Created
06/07/2024
Added
06/06/2024
Modified
06/06/2024

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Do not register event handler until srpt device is fully setup Upon rare occasions, KASAN reports a use-after-free Write in srpt_refresh_port(). This seems to be because an event handler is registered before the srpt device is fully setup and a race condition upon error may leave a partially setup event handler in place. Instead, only register the event handler after srpt device initialization is complete.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

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