CVE-2026-93103

CVE-2026-93103: vulnerability in Linux

RDMA/hfi1: Preserve unit 0 on allocation failure

Published

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 93% of all CVEs
observed exploitation
nono source reports it
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 products
Linux · Linux
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References
https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cbhttps://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80ehttps://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81