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CVE-2026-93103

RDMA/hfi1: Preserve unit 0 on allocation failure

N/A
Published: September 17, 2026 at 04:11 PM UTC
Updated: October 19, 2026 at 10:17 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
03b92789e5cfdac66805c1a98f1ec67336199d563b92789e5cfdac66805c1a98f1ec67336199d565.2
Vendor states this is fixed in 0feb29d434e6cc0ebefec4f77be014c85ad751b0 (fixed)
Vendor states this is fixed in 2e3809ad8911f5d5581b3f046bd628417bface76 (fixed)
Vendor states this is fixed in 3d0e5252b8d0345ef494763ca31e3ddd666e02cb (fixed)
Vendor states this is fixed in 3f1e196eb66b8cd3882e373794d6cea46f150a20 (fixed)
Vendor states this is fixed in 4204f5c0312ba136181a6e148ffa0bfaf95a4cc1 (fixed)
Vendor states this is fixed in 4ff9d58d34758e9633078b37e8d5289b513ff80e (fixed)
Vendor states this is fixed in 852637d3ee56aed8ea3ee8948eda21eca406c051 (fixed)
Vendor states this is fixed in fd4d3ad5f244a867166d1e2da7ece3d82878ec81 (fixed)
Vendor states this is fixed in 5.10.270 (unaffected)
Vendor states this is fixed in 5.15.221 (unaffected)
Vendor states this is fixed in 5.2 (unaffected)
Vendor states this is fixed in 6.1.188 (unaffected)
Vendor states this is fixed in 6.12.110 (unaffected)
Vendor states this is fixed in 6.18.52 (unaffected)
Vendor states this is fixed in 6.6.157 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (8)

Source: cverecord
https://git.kernel.org/stable/c/852637d3ee56aed8ea3ee8948eda21eca406c051
Source: cverecord
https://git.kernel.org/stable/c/3d0e5252b8d0345ef494763ca31e3ddd666e02cb
Source: cverecord
https://git.kernel.org/stable/c/0feb29d434e6cc0ebefec4f77be014c85ad751b0
Source: cverecord
https://git.kernel.org/stable/c/3f1e196eb66b8cd3882e373794d6cea46f150a20
Source: cverecord
https://git.kernel.org/stable/c/4ff9d58d34758e9633078b37e8d5289b513ff80e
Source: cverecord
https://git.kernel.org/stable/c/fd4d3ad5f244a867166d1e2da7ece3d82878ec81
Source: cverecord
https://git.kernel.org/stable/c/4204f5c0312ba136181a6e148ffa0bfaf95a4cc1
Source: cverecord
https://git.kernel.org/stable/c/2e3809ad8911f5d5581b3f046bd628417bface76

Quick Info

StatusRECEIVED

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