CVE-2025-21723

Summary

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

Impact & exploitability

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://git.kernel.org/stable/c/19b248069d1b1424982723a2bf3941ad864d5204 ↗

Additional information

• NVD record
• https://git.kernel.org/stable/c/19b248069d1b1424982723a2bf3941ad864d5204Patch
• https://git.kernel.org/stable/c/295006f6e8c17212d3098811166e29627d19e05cPatch
• https://git.kernel.org/stable/c/832b8f95a2832321b8200ae478ed988b25faaef4Patch
• https://git.kernel.org/stable/c/1ee558f98d9e247210e2301e19cc6e605778d4f1
• https://git.kernel.org/stable/c/bf66ec718e68767f6d463617adaf021963678803