CVE-2025-21723 Information

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)\nwill 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: 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

Reference

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