CVE-2025-21723

scsi: mpi3mr: Fix possible crash when setting up bsg fails

Description

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Fix possible crash when setting up bsg fails If bsg_setup_queue() fails, the bsg_queue is assigned a non-NULL value. Consequently, in mpi3mr_bsg_exit(), the condition "if(!mrioc->bsg_queue)" will not be satisfied, preventing execution from entering bsg_remove_queue(), which could lead to the following crash: BUG: kernel NULL pointer dereference, address: 000000000000041c Call Trace: <TASK> mpi3mr_bsg_exit+0x1f/0x50 [mpi3mr] mpi3mr_remove+0x6f/0x340 [mpi3mr] pci_device_remove+0x3f/0xb0 device_release_driver_internal+0x19d/0x220 unbind_store+0xa4/0xb0 kernfs_fop_write_iter+0x11f/0x200 vfs_write+0x1fc/0x3e0 ksys_write+0x67/0xe0 do_syscall_64+0x38/0x80 entry_SYSCALL_64_after_hwframe+0x78/0xe2

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/19b248069d1b1424982723a2bf3941ad864d5204 patch
https://git.kernel.org/stable/c/832b8f95a2832321b8200ae478ed988b25faaef4 patch
https://git.kernel.org/stable/c/295006f6e8c17212d3098811166e29627d19e05c patch

Frequently Asked Questions

What is the severity of CVE-2025-21723?
CVE-2025-21723 has been scored as a medium severity vulnerability.
How to fix CVE-2025-21723?
To fix CVE-2025-21723, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-21723 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2025-21723 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-21723?
CVE-2025-21723 affects Linux Linux, Linux Linux.
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