Description
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().
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= ec89146215d124c429bff84b498dccdc4919ffa7, < eeef4fa993b3f962de9b45999f12ff25a5c79ce7; >= ec89146215d124c429bff84b498dccdc4919ffa7, < 504b177ad58c45be7e1cfa81f9b42f7f040737c5; >= ec89146215d124c429bff84b498dccdc4919ffa7, < c3e4c716909a053391b06a9a816c8588b652e3d2; >= ec89146215d124c429bff84b498dccdc4919ffa7, < 2ecc30066c2284d2ed11bbd576ec97156b384054; >= ec89146215d124c429bff84b498dccdc4919ffa7, < 5dfc77099c7d9fde9520a229794b0154d7ccccc1; >= ec89146215d124c429bff84b498dccdc4919ffa7, < d6e2411516bb95e52cb74c9c56b60ad2548a2730; >= ec89146215d124c429bff84b498dccdc4919ffa7, < 9fc03be982763a131913f84fe73b240ae45bca37; >= ec89146215d124c429bff84b498dccdc4919ffa7, < a152edab3854f01dd2daf3eaf8f32cbabdb3834e |
| Linux | Linux | 4.8 |
References
- https://git.kernel.org/stable/c/2ecc30066c2284d2ed11bbd576ec97156b384054
- https://git.kernel.org/stable/c/504b177ad58c45be7e1cfa81f9b42f7f040737c5
- https://git.kernel.org/stable/c/5dfc77099c7d9fde9520a229794b0154d7ccccc1
- https://git.kernel.org/stable/c/9fc03be982763a131913f84fe73b240ae45bca37
- https://git.kernel.org/stable/c/a152edab3854f01dd2daf3eaf8f32cbabdb3834e
- https://git.kernel.org/stable/c/c3e4c716909a053391b06a9a816c8588b652e3d2
- https://git.kernel.org/stable/c/d6e2411516bb95e52cb74c9c56b60ad2548a2730
- https://git.kernel.org/stable/c/eeef4fa993b3f962de9b45999f12ff25a5c79ce7
Timeline
- Published
- Sep 16, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received