Linux kernel MPI3MR NULL check stops crash
CVE-2026-43473 Published on May 8, 2026
scsi: mpi3mr: Add NULL checks when resetting request and reply queues
In the Linux kernel, the following vulnerability has been resolved:
scsi: mpi3mr: Add NULL checks when resetting request and reply queues
The driver encountered a crash during resource cleanup when the reply and
request queues were NULL due to freed memory. This issue occurred when the
creation of reply or request queues failed, and the driver freed the memory
first, but attempted to mem set the content of the freed memory, leading to
a system crash.
Add NULL pointer checks for reply and request queues before accessing the
reply/request memory during cleanup
Products Associated with CVE-2026-43473
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below f8e833572a3e12a2a1ffe7b3646af024264d38ca is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 7df0296ad4e9253d12c6dbe7f120044dddc95600 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 7da755e0d02e9ca035065127e108d1fed8950dc8 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 78d3f201f8b609928eade53cf03a52df5415aaf7 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below e978a36f332ede78eb4de037b517db16265d420d is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 220d7ca70611a73d50ef8e9edac630ed1ececb7c is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below fa96392ebebc8fade2b878acb14cce0f71016503 is affected.
- Version 5.15.203, <= 5.15.* is unaffected.
- Version 6.1.167, <= 6.1.* is unaffected.
- Version 6.6.130, <= 6.6.* is unaffected.
- Version 6.12.78, <= 6.12.* is unaffected.
- Version 6.18.19, <= 6.18.* is unaffected.
- Version 6.19.9, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.