Log in Start free

Vulnerability · Published Oct 28, 2026 · Assigned by Linux

CVE-2026-99142tracing: Check operator stack capacity before pushing

High 7.1

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 0.1% (higher than 3% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.1%top 97.0% 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: tracing: Check operator stack capacity before pushing predicate_parse() uses the first operator stack entry before processing any opening parentheses. A push then increments top before writing. The existing check still permits that write when top already points to the last allocated entry, which can access beyond the operator stack. Reject the push when top reaches the last allocated entry.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.115-2DEBIAN-CVE-2026-99142
Debian:14linux7.2.13-1DEBIAN-CVE-2026-99142
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux7.3.0-10.10UBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-aws7.3.0-1004.4UBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-azureno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-azure-fdeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-gcp7.3.0-1004.4UBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-oracle7.3.0-1004.4UBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-raspi7.3.0-1004.4UBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-realtime7.3.0-10.10.1UBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-99142
Ubuntu:26.10linux-riscv7.3.0-10.10.1UBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-99142
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-99142
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-99142

Affected products (as reported)

VendorProductVersions
Linux Linux 39f7c41c908bc82947ce47cdd021520ff486c53f – before c43c41ec62ca54ae145aa4912c6692a26d62573439f7c41c908bc82947ce47cdd021520ff486c53f – before d6f0006f194db49c54117ae22146421da5a2ca5939f7c41c908bc82947ce47cdd021520ff486c53f – before a866a8a753922cdf7710b8eb3f686dc0efc0650539f7c41c908bc82947ce47cdd021520ff486c53f – before 75e894f92417390f0ef44fd350f2d3634c78487639f7c41c908bc82947ce47cdd021520ff486c53f – before c47a7b11bcb3d45e29723afcf6336866476b1d08
Linux Linux 6.6

References