CVE-2026-93104

RDMA/rvt: Return NULL after port allocation failure

N/A
Published: September 17, 2026 at 04:11 PM UTC
Updated: October 21, 2026 at 01:20 PM 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/rvt: Return NULL after port allocation failure rvt_alloc_device() deallocates the IB device when its port array cannot be allocated but then returns the pointer to the released allocation. Callers treat any non-NULL value as valid and dereference it, resulting in a use-after-free. Return NULL immediately after deallocation so callers can propagate the allocation failure.

Affected

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

4.6ff6acd69518e0a84bd9c9b7f1bd4313f7076db97
Vendor states this is fixed in 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f (fixed)
Vendor states this is fixed in b1e1b25723af44328524c7b54433e4bf0ab9930c (fixed)
Vendor states this is fixed in 4.6 (unaffected)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 6.6.160 (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.

Quick Info

StatusRECEIVED

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