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Vulnerability · Published Sep 25, 2026 · Assigned by Linux

CVE-2026-100075RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters

Critical 9.8

In plain English

A critical-severity 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 0.4% (higher than 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.4%top 62.6% 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/srpt: Fix srpt_alloc_rw_ctxs() unwind counters When srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect descriptor, the unwind path destroys RDMA contexts but leaves stale n_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later sq_wr_avail accounting in srpt_queue_response() or srpt_write_pending() can then subtract the wrong number of send queue credits. Reset the counters and clear rw_ctxs after freeing the heap allocation before returning an error.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.190-1DEBIAN-CVE-2026-100075
Debian:13linux6.12.111-1DEBIAN-CVE-2026-100075
Debian:14linux7.2.6-1DEBIAN-CVE-2026-100075
Debian:12linux-6.126.12.111-1~deb12u1DEBIAN-CVE-2026-100075
Ubuntu:22.04:LTSlinux5.15.0-202.212UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux7.0.0-42.42UBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux7.0.0-42.42USN-8959-1
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-aws5.15.0-1119.126UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17UBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-aws7.0.0-1016.17USN-8959-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure5.15.0-1125.134UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1124.133UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gcp5.15.0-1120.130UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18UBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-gcp7.0.0-1016.18USN-8959-1
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gke5.15.0-1115.121UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1102.110UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-42.42~24.04.1USN-8959-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1113.117UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17USN-8959-1
Ubuntu:26.04:LTSlinux-ibm7.0.0-1017.17UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1114.120UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-kvm5.15.0-1111.116UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-197.207UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1114.115UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1070.72UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1059.59UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17UBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1017.17USN-8960-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1116.122UBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16UBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-oracle7.0.0-1015.16USN-8959-1
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-100075
Ubuntu:26.04:LTSlinux-riscv7.0.0-42.42.1UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-42.42.1~24.04.1UBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-100075
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-100075
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-100075

Affected products (as reported)

VendorProductVersions
Linux Linux b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before af00051dbc9f467d4840ec709680660a3f8990fab99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before 717ab4d0614e9446bf8e2de6229464499e4008d6b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before f1f2252da52cdda912da9993f39f58783b01b38fb99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189db99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before be1478849e1abb1e12dc12e14cdbf800cc6fa99ab99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before af073bd245180393bcb15d33d3990a6bdc32593ab99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before bd02d644bd19a2795c018635d273d91e45d2bb95b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 – before b38f98e176050850f41bb6415f3a71400056623e
Linux Linux 4.7

References