CVE-2026-93103

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 852637d3ee56aed8ea3ee8948eda21eca406c051affected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 3d0e5252b8d0345ef494763ca31e3ddd666e02cbaffected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 0feb29d434e6cc0ebefec4f77be014c85ad751b0affected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 3f1e196eb66b8cd3882e373794d6cea46f150a20affected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 4ff9d58d34758e9633078b37e8d5289b513ff80eaffected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < fd4d3ad5f244a867166d1e2da7ece3d82878ec81affected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1affected
LinuxLinux03b92789e5cfdac66805c1a98f1ec67336199d56 < 2e3809ad8911f5d5581b3f046bd628417bface76affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.10.270 <= 5.10.*unaffected
LinuxLinux5.15.221 <= 5.15.*unaffected
LinuxLinux6.1.188 <= 6.1.*unaffected
LinuxLinux6.6.157 <= 6.6.*unaffected
LinuxLinux6.12.110 <= 6.12.*unaffected
LinuxLinux6.18.52 <= 6.18.*unaffected
LinuxLinux7.2.6 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References