CVE-2022-50530 blk-mq: fix null pointer dereference in blk_mq_clear_rq_mapping()

In the Linux kernel, the following vulnerability has been resolved: blk-mq: fix null pointer dereference in blkmqclearrqmapping Our syzkaller report a null pointer dereference, root cause is following: blkmqallocmapandrqs set-tagshctxidx = blkmqallocmapandrqs blkmqallocmapandrqs blkmqallocrqs //...

CVE-2022-50530

Mode C: CVE-2022-50530 affects the Linux kernel blk-mq path. The vulnerability is a NULL pointer dereference in blk_mq_clear_rq_mapping(), triggered when set->tags[hctx_idx] is NULL during an allocation path that merged two steps into one. Root cause, per the report, is that tags may not be in...

PT-2025-41035

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw in the block I/O queue management code. Specifically, a null pointer dereference can occur within the blk mq clear rq mapping function. This issue arises...