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Vulnerability · Published Sep 17, 2026 · Assigned by Linux

CVE-2026-93104RDMA/rvt: Return NULL after port allocation failure

Unrated

In plain English

A security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 8% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 92.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-93104
Debian:13linux6.12.115-2DEBIAN-CVE-2026-93104
Debian:14linux7.2.6-1DEBIAN-CVE-2026-93104
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-93104
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-93104
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-93104
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-93104

Affected products (as reported)

VendorProductVersions
Linux Linux ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before 32d2cdb0f3cac430b04124c3b7248851fe2037f8ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before b7129930d1ec46c03a0de07fdce6c29f75795006ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before 5a1a7a5e2fe1a15824fa9ae5edd8f008259471d1ff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before 80968b42d13080bf7bc1f3ee17fef126ce2ad98fff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before b1e1b25723af44328524c7b54433e4bf0ab9930cff6acd69518e0a84bd9c9b7f1bd4313f7076db97 – before 2982eaf3b9d2d953318c74cd6f1b7576ea6d7b1f
Linux Linux 4.6

References