Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2022-48939

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
22/08/2024
Last modified:
22/08/2024

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> bpf: Add schedule points in batch ops<br /> <br /> syzbot reported various soft lockups caused by bpf batch operations.<br /> <br /> INFO: task kworker/1:1:27 blocked for more than 140 seconds.<br /> INFO: task hung in rcu_barrier<br /> <br /> Nothing prevents batch ops to process huge amount of data,<br /> we need to add schedule points in them.<br /> <br /> Note that maybe_wait_bpf_programs(map) calls from<br /> generic_map_delete_batch() can be factorized by moving<br /> the call after the loop.<br /> <br /> This will be done later in -next tree once we get this fix merged,<br /> unless there is strong opinion doing this optimization sooner.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 3.30 LOW
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x
3.30
Severity 3.x
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.6 (including) 5.10.103 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.26 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 5.16.12 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools