Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/bnxt_re: Avoid CPU lockups due fifo occupancy check loop Driver waits indefinitely for the fifo occupancy to go below a threshold as soon as the pacing interrupt is received. This can cause soft lockup on one of the processors, if the rate of DB is very high. Add a loop count for FPGA and exit the __wait_for_fifo_occupancy_below_th if the loop is taking more time. Pacing will be continuing until the occupancy is below the threshold. This is ensured by the checks in bnxt_re_pacing_timer_exp and further scheduling the work for pacing based on the fifo occupancy.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
2ad4e6303a6d7518632739eaf67821a3553db1bd to < 7998e7efd1d557af118ac96f48ebc569b929b555affected2ad4e6303a6d7518632739eaf67821a3553db1bd to < 2fb6b2e82413e401b72dfeacd7a60416fcfc5b41affected2ad4e6303a6d7518632739eaf67821a3553db1bd to < 8be3e5b0c96beeefe9d5486b96575d104d3e7d17affected
Linux Linux
Default version status: affected
6.6affected0 to < 6.6unaffected6.6.75 to ≤ 6.6.*unaffected6.11.6 to ≤ 6.11.*unaffected6.12 to ≤ *unaffected