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Vulnerability · Published Oct 18, 2026 · Assigned by Linux

CVE-2026-98790perf: Fix race between perf_event_exit_task() and perf_pending_task()

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: perf: Fix race between perf_event_exit_task() and perf_pending_task() A race condition exists between perf_event_exit_task() and perf_pending_task() during begin_new_exec(). During begin_new_exec(), perf_event_exit_task() may be called, and the PF_EXITING flag is not set on task. So perf_sigtrap() continues to execute and triggers WARN_ON_ONCE(event->ctx->task != current). Since both task exit and exec paths can call perf_event_exit_task() which sets ctx->task to TASK_TOMBSTONE, fix this by explicitly checking if event->ctx->task equals TASK_TOMBSTONE and dropping the redundant PF_EXITING check.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2026-98790
Debian:13linux6.12.113-1DEBIAN-CVE-2026-98790
Debian:14linux7.2.10-1DEBIAN-CVE-2026-98790
Debian:12linux-6.126.12.113-1~deb12u1DEBIAN-CVE-2026-98790
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98790
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2026-98790
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2026-98790
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2026-98790

Affected products (as reported)

VendorProductVersions
Linux Linux 97ba62b278674293762c3d91f724f1bb922f04e0 – before 6e454fbe3e646d119ab75e907035950e0e857c0997ba62b278674293762c3d91f724f1bb922f04e0 – before a8a6fe5601fa2d2c0fbfb3e531a1063f73c1eae397ba62b278674293762c3d91f724f1bb922f04e0 – before 655acfa713bce9ae9c81a654459890c2f58cb4e897ba62b278674293762c3d91f724f1bb922f04e0 – before 672b8a9ce8f51b991481dfde26fba5cc4340a91a97ba62b278674293762c3d91f724f1bb922f04e0 – before 524063fea29f8a841e49927ea7a8085194ad3ec297ba62b278674293762c3d91f724f1bb922f04e0 – before 81e61e3f8befa1bae3ec8e779d8ada5e5e362c2197ba62b278674293762c3d91f724f1bb922f04e0 – before ffb684f2aa141eeb0caa6308422e7e05d1ded7c4
Linux Linux 5.13

References