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CVE-2022-48939 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8 Patch 
https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417 Patch 
https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b Patch 
https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-834 Excessive Iteration cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-48939
NVD Published Date:
08/22/2024
NVD Last Modified:
08/22/2024
Source:
kernel.org