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Vulnerability · Published Jul 1, 2026 · Assigned by Linux

CVE-2026-53355net: rds: clear i_sends on setup unwind

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 63.4% 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: net: rds: clear i_sends on setup unwind The RDS IB connection teardown path is written so it can run during partial startup and on repeated shutdown attempts. It uses NULL pointers to distinguish resources that are still owned from resources that have already been released. When rds_ib_setup_qp() fails after allocating i_sends but before allocating i_recvs, the sends_out path frees i_sends without clearing the pointer. A later shutdown pass can still treat that stale pointer as a live send ring allocation. Clear i_sends after vfree() in the error unwind path so the existing shutdown logic continues to use the correct ownership state.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.176-1DEBIAN-CVE-2026-53355
Debian:13linux6.12.94-1DEBIAN-CVE-2026-53355
Debian:14linux7.0.13-1DEBIAN-CVE-2026-53355
Ubuntu:22.04:LTSlinux5.15.0-194.204USN-8818-4
Ubuntu:22.04:LTSlinux5.15.0-194.204UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux6.8.0-142.142USN-8817-1
Ubuntu:24.04:LTSlinux6.8.0-142.142UBUNTU-CVE-2026-53355
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux7.0.0-31.31UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws5.15.0-1116.123UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws5.15.0-1116.123USN-8818-1
Ubuntu:24.04:LTSlinux-aws6.8.0-1065.68UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-aws6.8.0-1065.68USN-8817-3
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-aws7.0.0-1012.12UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1065.68~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1065.68~22.04.1USN-8817-3
Ubuntu:24.04:LTSlinux-aws-7.07.0.0-1012.12~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure5.15.0-1122.131USN-8818-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1122.131UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure6.8.0-1068.76USN-8817-1
Ubuntu:24.04:LTSlinux-azure6.8.0-1068.76UBUNTU-CVE-2026-53355
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-azure7.0.0-1014.14UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1068.76~22.04.1USN-8817-1
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1068.76~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-7.07.0.0-1014.14~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1121.130UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1121.130USN-8818-1
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1066.73UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1066.73USN-8817-1
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-azure-fde7.0.0-1013.13UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1066.73~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1066.73~22.04.1USN-8817-1
Ubuntu:24.04:LTSlinux-azure-fde-7.07.0.0-1013.13~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp5.15.0-1117.127UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp5.15.0-1117.127USN-8818-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1069.77USN-8817-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1069.77UBUNTU-CVE-2026-53355
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-gcp7.0.0-1011.11UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1069.77~22.04.1USN-8817-1
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1069.77~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gcp-7.07.0.0-1011.11~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gke5.15.0-1112.118USN-8818-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1112.118UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gke6.8.0-1064.72UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-gke6.8.0-1064.72USN-8817-1
Ubuntu:26.04:LTSlinux-gke7.0.0-1006.7UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1099.107UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1099.107USN-8818-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1050.54USN-8817-1
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1050.54UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-hwe-7.07.0.0-31.31~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-ibm5.15.0-1110.114USN-8818-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1110.114UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-ibm6.8.0-1065.66UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-ibm6.8.0-1065.66USN-8817-1
Ubuntu:26.04:LTSlinux-ibm7.0.0-1013.13UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1066.67~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1111.117UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1111.117USN-8818-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1108.113USN-8818-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1108.113UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-194.204UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-194.204USN-8818-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-142.142.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-142.142.1USN-8817-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-142.142.1~22.04.1USN-8817-1
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-142.142.1~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1111.112USN-8818-4
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1111.112UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1063.66UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1063.66USN-8842-1
Ubuntu:26.04:LTSlinux-nvidia7.0.0-1018.18UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1063.66~22.04.1USN-8842-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1063.66~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-7.07.0.0-1018.18~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-nvidia-bos7.0.0-2018.18UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1063.66.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1063.66.1USN-8842-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1068.70USN-8818-5
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1068.70UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1035.38UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1057.57USN-8818-5
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1057.57UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-oem-7.07.0.0-1013.13UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oracle5.15.0-1113.119USN-8818-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1113.119UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oracle6.8.0-1062.65UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oracle6.8.0-1062.65USN-8817-1
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-oracle7.0.0-1011.11UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1062.65~22.04.1USN-8817-1
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1062.65~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-oracle-7.07.0.0-1011.11~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-raspi5.15.0-1110.113USN-8871-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1110.113UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-raspi6.8.0-1065.69UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-raspi6.8.0-1065.69USN-8817-1
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-raspi7.0.0-1019.19UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-realtime7.0.0-31.31.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-53355
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-53355
Ubuntu:26.04:LTSlinux-riscv7.0.0-31.31.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-142.142~22.04.1UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-riscv-7.07.0.0-31.31.1~24.04.1UBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-vmware6.8.0-1008.8UBUNTU-CVE-2026-53355
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-53355
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1079.83USN-8818-1
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1079.83UBUNTU-CVE-2026-53355

Affected products (as reported)

VendorProductVersions
Linux Linux 3b12f73a5c2977153f28a224392fd4729b50d1dc – before 66cccec111421a10efdc2c74499d15b93e7acae53b12f73a5c2977153f28a224392fd4729b50d1dc – before 2c5e5e4a5970c41f16e3ad801a78719ed5d5c71b3b12f73a5c2977153f28a224392fd4729b50d1dc – before 29d940026dce39e3018dab6f67c94272493212703b12f73a5c2977153f28a224392fd4729b50d1dc – before e7cf30aa5f1fc6c2a86df65df8b731df20e44d793b12f73a5c2977153f28a224392fd4729b50d1dc – before f16ad421a4e3e7db2d14bdf3b16f583bc4f3b30a3b12f73a5c2977153f28a224392fd4729b50d1dc – before 1d4ec754ee3871f7e3670c67bb0298c9c57609263b12f73a5c2977153f28a224392fd4729b50d1dc – before 27040bbca289a704eafcacca167d310c6ce2b1bc3b12f73a5c2977153f28a224392fd4729b50d1dc – before 20cf0fb715c41111469577e85e35d15f099473e0
Linux Linux 4.11

References