CVE-2026-93103

RDMA/hfi1: Preserve unit 0 on allocation failure

State: Published
Severity: Not scored
Published: Sep 17, 2026
Updated: Oct 19, 2026
Reserved: Sep 17, 2026

Description

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

RDMA/hfi1: Preserve unit 0 on allocation failure

hfi1_free_devdata() assumes that the device was inserted into the unit table and unconditionally erases dd->unit. If xa_alloc_irq() fails, the zero-initialized unit remains zero, so full cleanup can remove an unrelated device from index 0.

Release only the rdmavt allocation and return immediately while the unit table has not acquired the device.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	03b92789e5cfdac66805c1a98f1ec67336199d56 to before 852637d3ee56aed8ea3ee8948eda21eca406c051Affected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 3d0e5252b8d0345ef494763ca31e3ddd666e02cbAffected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 0feb29d434e6cc0ebefec4f77be014c85ad751b0Affected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 3f1e196eb66b8cd3882e373794d6cea46f150a20Affected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 4ff9d58d34758e9633078b37e8d5289b513ff80eAffected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before fd4d3ad5f244a867166d1e2da7ece3d82878ec81Affected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1Affected 03b92789e5cfdac66805c1a98f1ec67336199d56 to before 2e3809ad8911f5d5581b3f046bd628417bface76Affected
LinuxLinux	5.2Affected before 5.2Not affected 5.10.270 through 5.10.Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.*Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

03b92789e5cfdac66805c1a98f1ec67336199d56 to before 852637d3ee56aed8ea3ee8948eda21eca406c051Affected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 3d0e5252b8d0345ef494763ca31e3ddd666e02cbAffected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 0feb29d434e6cc0ebefec4f77be014c85ad751b0Affected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 3f1e196eb66b8cd3882e373794d6cea46f150a20Affected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 4ff9d58d34758e9633078b37e8d5289b513ff80eAffected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before fd4d3ad5f244a867166d1e2da7ece3d82878ec81Affected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1Affected
03b92789e5cfdac66805c1a98f1ec67336199d56 to before 2e3809ad8911f5d5581b3f046bd628417bface76Affected

LinuxLinux

5.2Affected
before 5.2Not affected
5.10.270 through 5.10.*Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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