CVE-2024-36920 Affecting kernel-debug package, versions <0:4.18.0-553.22.1.el8_10
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUG-7185229
- published 3 Jun 2024
- disclosed 30 May 2024
Introduced: 30 May 2024
CVE-2024-36920 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug to version 0:4.18.0-553.22.1.el8_10 or higher.
This issue was patched in RHSA-2024:7000.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug package and not the kernel-debug package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
scsi: mpi3mr: Avoid memcpy field-spanning write WARNING
When the "storcli2 show" command is executed for eHBA-9600, mpi3mr driver prints this WARNING message:
memcpy: detected field-spanning write (size 128) of single field "bsg_reply_buf->reply_buf" at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 (size 1) WARNING: CPU: 0 PID: 12760 at drivers/scsi/mpi3mr/mpi3mr_app.c:1658 mpi3mr_bsg_request+0x6b12/0x7f10 [mpi3mr]
The cause of the WARN is 128 bytes memcpy to the 1 byte size array "__u8 replay_buf[1]" in the struct mpi3mr_bsg_in_reply_buf. The array is intended to be a flexible length array, so the WARN is a false positive.
To suppress the WARN, remove the constant number '1' from the array declaration and clarify that it has flexible length. Also, adjust the memory allocation size to match the change.
References
- https://access.redhat.com/security/cve/CVE-2024-36920
- https://git.kernel.org/stable/c/429846b4b6ce9853e0d803a2357bb2e55083adf0
- https://git.kernel.org/stable/c/4d2772324f43cf5674ac3dbe3f74a7e656396716
- https://git.kernel.org/stable/c/5f0266044dc611563539705bff0b3e1545fbb6aa
- https://git.kernel.org/stable/c/f09318244c6cafd10aca741b9c01e0a2c362d43a