CVE-2022-48939
Linux Kernel bpf Soft Lockup Vulnerability
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.
INFO
Published Date :
Aug. 22, 2024, 4:15 a.m.
Last Modified :
Aug. 22, 2024, 7:02 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
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CVE-2022-48939.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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The following list is the news that have been mention
CVE-2022-48939 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48939 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Aug. 22, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L Changed Reference Type https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8 No Types Assigned https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8 Patch Changed Reference Type https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417 No Types Assigned https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417 Patch Changed Reference Type https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b No Types Assigned https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b Patch Changed Reference Type https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784 No Types Assigned https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784 Patch Added CWE NIST CWE-834 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.6 up to (excluding) 5.10.103 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.26 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.16.12 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 22, 2024
Action Type Old Value New Value Added 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. Added Reference kernel.org https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48939 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-48939
weaknesses.