CVE-2026-97532

Summary

In the Linux kernel, the following vulnerability has been resolved:

scsi: qla2xxx: Null out freed pointers in qla2x00_mem_alloc() error path

When qla2x00_mem_alloc() fails, qla2x00_probe_one() jumps to probe_hw_failed and calls qla2x00_mem_free(). Several error labels in qla2x00_mem_alloc() freed adapter members (elsrej.c, purex_dma_pool, flt, sfp_data, loop_id_map, async_pd, sf_init_cb, ex_init_cb, npiv_info) but left the pointers dangling. qla2x00_mem_free() then freed them a second time. Worse, for the dma_pool members it issued dma_pool_free(ha->s_dma_pool, …) after s_dma_pool had already been destroyed and set to NULL at fail_s_dma_pool, dereferencing a NULL pool.

Clear each freed pointer (and its DMA handle) in the error labels so the subsequent qla2x00_mem_free() skips them.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/a57570229edb7a0990d5c8067daeb9ac8858a961
• https://git.kernel.org/stable/c/286d9594a022dd7e0caa3de9daa63b896bc70d43
• https://git.kernel.org/stable/c/6d90f0feb929f6c0f3010f9af4747c7230b75993

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