CVE-2024-36920
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…
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.23% probability · 14th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/429846b4b6ce9853e0d803a2357bb2e55083adf0Patch
- https://git.kernel.org/stable/c/4d2772324f43cf5674ac3dbe3f74a7e656396716Patch
- https://git.kernel.org/stable/c/5f0266044dc611563539705bff0b3e1545fbb6aaPatch
- https://git.kernel.org/stable/c/f09318244c6cafd10aca741b9c01e0a2c362d43aPatch
- https://git.kernel.org/stable/c/429846b4b6ce9853e0d803a2357bb2e55083adf0Patch
- https://git.kernel.org/stable/c/4d2772324f43cf5674ac3dbe3f74a7e656396716Patch
- https://git.kernel.org/stable/c/5f0266044dc611563539705bff0b3e1545fbb6aaPatch
- https://git.kernel.org/stable/c/f09318244c6cafd10aca741b9c01e0a2c362d43aPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.