Log in Start free

Vulnerability · Published Aug 22, 2024 · Assigned by Linux

CVE-2022-48939bpf: Add schedule points in batch ops

Low 3.3

In plain English

A low-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 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)3.3Low
Exploit odds (30 days)0.2%top 89.9% 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: bpf: Add schedule points in batch ops syzbot reported various soft lockups caused by bpf batch operations. INFO: task kworker/1:1:27 blocked for more than 140 seconds. INFO: task hung in rcu_barrier Nothing prevents batch ops to process huge amount of data, we need to add schedule points in them. Note that maybe_wait_bpf_programs(map) calls from generic_map_delete_batch() can be factorized by moving the call after the loop. This will be done later in -next tree once we get this fix merged, unless there is strong opinion doing this optimization sooner.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.16.12-1DEBIAN-CVE-2022-48939
Debian:13linux5.16.12-1DEBIAN-CVE-2022-48939
Debian:14linux5.16.12-1DEBIAN-CVE-2022-48939
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-48939
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-48939

Affected products (as reported)

VendorProductVersions
Linux Linux cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 – before 7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12bcb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 – before 8628f489b749a4f9767991631921dbe3fbcdc784cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 – before 7e8099967d0e3ff9d1ae043e80b27fbe46c08417cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 – before 75134f16e7dd0007aa474b281935c5f42e79f2c8
Linux Linux 5.6

References