CVE-2022-48939 (GCVE-0-2022-48939)

Vulnerability from cvelistv5 – Published: 2024-08-22 03:31 – Updated: 2025-05-04 08:26
VLAI?
Title
bpf: Add schedule points in batch ops
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 , < 7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b (git)
Affected: cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 , < 8628f489b749a4f9767991631921dbe3fbcdc784 (git)
Affected: cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 , < 7e8099967d0e3ff9d1ae043e80b27fbe46c08417 (git)
Affected: cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 , < 75134f16e7dd0007aa474b281935c5f42e79f2c8 (git)
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    Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 5.10.103 , ≤ 5.10.* (semver)
Unaffected: 5.15.26 , ≤ 5.15.* (semver)
Unaffected: 5.16.12 , ≤ 5.16.* (semver)
Unaffected: 5.17 , ≤ * (original_commit_for_fix)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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