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Vulnerability · Published Jan 25, 2026 · Assigned by Linux

CVE-2026-22997net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts

High 7.5

In plain English

A high-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 0.5% (higher than 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 59.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: net: can: j1939: j1939_xtp_rx_rts_session_active(): deactivate session upon receiving the second rts Since j1939_session_deactivate_activate_next() in j1939_tp_rxtimer() is called only when the timer is enabled, we need to call j1939_session_deactivate_activate_next() if we cancelled the timer. Otherwise, refcount for j1939_session leaks, which will later appear as | unregister_netdevice: waiting for vcan0 to become free. Usage count = 2. problem.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.1.162-1DEBIAN-CVE-2026-22997
Debian:13linux6.12.69-1DEBIAN-CVE-2026-22997
Debian:14linux6.18.8-1DEBIAN-CVE-2026-22997
Ubuntu:22.04:LTSlinux5.15.0-176.186UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux5.15.0-176.186USN-8180-1
Ubuntu:24.04:LTSlinux6.8.0-117.117UBUNTU-CVE-2026-22997
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-aws5.15.0-1105.112USN-8180-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1105.112UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-aws6.8.0-1055.58UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1057.60~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure5.15.0-1110.119USN-8180-3
Ubuntu:22.04:LTSlinux-azure5.15.0-1110.119UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure6.8.0-1056.62UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1021.21~24.04.1UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-6.176.17.0-1021.21~24.04.1USN-8604-1
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1059.65~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1114.123UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-fde-6.176.17.0-1018.18~24.04.1USN-8605-1
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gcp5.15.0-1105.114USN-8180-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1105.114UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gcp6.8.0-1058.61UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1021.24~24.04.1UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gcp-6.176.17.0-1021.24~24.04.1USN-8570-1
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1060.63~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gke5.15.0-1101.107UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gke5.15.0-1101.107USN-8180-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1054.60UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1088.96USN-8180-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1088.96UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1041.44UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-hwe-6.176.17.0-41.41~24.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-124.124~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-ibm5.15.0-1099.102UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-ibm5.15.0-1099.102USN-8180-5
Ubuntu:24.04:LTSlinux-ibm6.8.0-1055.56UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1055.56~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1100.106UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1100.106USN-8180-3
Ubuntu:22.04:LTSlinux-kvm5.15.0-1097.102UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-kvm5.15.0-1097.102USN-8180-3
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-175.185UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-175.185USN-8180-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-117.117.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-117.117.1~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1100.101UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1100.101USN-8180-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1054.57UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1031.31UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-nvidia-6.176.17.0-1031.31USN-8669-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1054.57~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1054.57.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1057.57USN-8187-1
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1057.57UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1024.24UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1046.46USN-8187-1
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1046.46UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1030.30USN-8594-1
Ubuntu:24.04:LTSlinux-oem-6.176.17.0-1030.30UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oracle5.15.0-1102.108USN-8180-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1102.108UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oracle6.8.0-1054.55UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1019.19~24.04.3UBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-oracle-6.176.17.0-1019.19~24.04.3USN-8570-2
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1054.55~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-raspi5.15.0-1099.102UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-raspi5.15.0-1099.102USN-8180-6
Ubuntu:24.04:LTSlinux-raspi6.8.0-1056.60UBUNTU-CVE-2026-22997
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-22997
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-117.117~22.04.1UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-22997
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1032.33UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1070.74UBUNTU-CVE-2026-22997
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1070.74USN-8275-1

Affected products (as reported)

VendorProductVersions
Linux Linux 9d71dd0c70099914fcd063135da3c580865e924c – before a73e7d7e346dae1c22dc3e95b02ca464b12daf2c9d71dd0c70099914fcd063135da3c580865e924c – before adabf01c19561e42899da9de56a6a1da0e6b8a5b9d71dd0c70099914fcd063135da3c580865e924c – before b1d67607e97d489c0cfbbf55f48a76b00710b0e49d71dd0c70099914fcd063135da3c580865e924c – before 809a437e27a3bf3c1c6c8c157773635552116f2b9d71dd0c70099914fcd063135da3c580865e924c – before cb2a610867bc379988bae0bb4b8bbc59c0decf1a9d71dd0c70099914fcd063135da3c580865e924c – before 6121b7564c725b632ffe4764abe85aa239d377039d71dd0c70099914fcd063135da3c580865e924c – before 1809c82aa073a11b7d335ae932d81ce51a588a4a
Linux Linux 5.4

Weakness: CWE-772 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References