Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 before 7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b; affected cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 before 8628f489b749a4f9767991631921dbe3fbcdc784; affected cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 before 7e8099967d0e3ff9d1ae043e80b27fbe46c08417; affected cb4d03ab499d4c040f4ab6fd4389d2b49f42b5a5 before 75134f16e7dd0007aa474b281935c5f42e79f2c8 |
| Linux / Linux | affected 5.6; unaffected 0 before 5.6; unaffected 5.10.103 through 5.10.*; unaffected 5.15.26 through 5.15.*; unaffected 5.16.12 through 5.16.*; unaffected 5.17 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7ef94bfb08fb9e73defafbd5ddef6b5a0e2ee12b
- https://git.kernel.org/stable/c/8628f489b749a4f9767991631921dbe3fbcdc784
- https://git.kernel.org/stable/c/7e8099967d0e3ff9d1ae043e80b27fbe46c08417
- https://git.kernel.org/stable/c/75134f16e7dd0007aa474b281935c5f42e79f2c8
ADP enrichment
No English description supplied.
No references supplied.