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

VendorProductVersion RangeStatus
LinuxLinuxd64d6c5671db5e693a0caaee79f2571b098749c9 < 84f5de696b8c924aeb4bf430a0bdc762fc50e99faffected
LinuxLinuxd64d6c5671db5e693a0caaee79f2571b098749c9 < a57570229edb7a0990d5c8067daeb9ac8858a961affected
LinuxLinuxd64d6c5671db5e693a0caaee79f2571b098749c9 < 286d9594a022dd7e0caa3de9daa63b896bc70d43affected
LinuxLinuxd64d6c5671db5e693a0caaee79f2571b098749c9 < 6d90f0feb929f6c0f3010f9af4747c7230b75993affected
LinuxLinux8540351ee8a4d540b1b7ee64b88d5e42c7c0bfbcaffected
LinuxLinux7142b10b87d5b393a0688358b16a4b1d3680ec7daffected
LinuxLinux4.14.27 < 4.15affected
LinuxLinux4.15.10 < 4.16affected
LinuxLinux4.16affected
LinuxLinux0 < 4.16unaffected
LinuxLinux6.12.112 <= 6.12.*unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References