CVE-2026-89859

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Zero dport diagnostics buffer to avoid info leak qla2x00_do_dport_diagnostics() allocates the qla_dport_diag response buffer with kmalloc_obj() (non-zeroing) and, on success, copies the full sizeof(*dd) back to user space via sg_copy_from_buffer(). The inbound sg_copy_to_buffer() only fills as many bytes as the user request payload provides, and qla26xx_dport_diagnostics() zeroes only dd->buf. The options and unused[] fields are therefore copied out uninitialized, leaking kernel heap contents to user space. Allocate with kzalloc_obj(), matching qla2x00_do_dport_diagnostics_v2().

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37
https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-16 11:16

Updated : 2026-09-16 11:16

NVD link : CVE-2026-89859

Mitre link : CVE-2026-89859

CVE.ORG link : CVE-2026-89859

JSON object : View

Products Affected

No product.

CWE

No CWE.

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