[Bug 1273] eth_memif_rx segfault when burst size is greater than 32

[Bug 1273] eth_memif_rx segfault when burst size is greater than 32

[bugzilla]

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https://bugs.dpdk.org/show_bug.cgi?id=1273

            Bug ID: 1273
           Summary: eth_memif_rx segfault when burst size is greater than
                    32
           Product: DPDK
           Version: 23.03
          Hardware: All
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev@dpdk.org
          Reporter: sunnylandh@gmail.com
  Target Milestone: ---

When rte_eth_rx_burst() is called on an memif device with a burst size greater
than 32, there's a segfault in eth_memif_rx() function.

  Thread 1 "x" received signal SIGSEGV, Segmentation fault.
  0x00007ffff7a116d1 in eth_memif_rx (queue=0x1b73051c0, bufs=0x7fffffffd320,
nb_pkts=<optimized out>) at ../drivers/net/memif/rte_eth_memif.c:360
  360                             mbuf = mbuf_head;
  (gdb) bt
  #0  0x00007ffff7a116d1 in eth_memif_rx (queue=0x1b73051c0,
bufs=0x7fffffffd320, nb_pkts=<optimized out>) at
../drivers/net/memif/rte_eth_memif.c:360
  #1  0x000055555555554e in rte_eth_rx_burst (nb_pkts=<optimized out>,
rx_pkts=0x7fffffffd220, queue_id=0, port_id=0) at
/usr/local/include/rte_ethdev.h:5918
  #2  rxloop (queue=0, mp=<optimized out>, burstSize=<optimized out>, port=0)
at x.c:51
  #3  main (argc=<optimized out>, argv=<optimized out>) at x.c:103

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[Bug 1273] eth_memif_rx segfault when burst size is greater than 32

[bugzilla]

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https://bugs.dpdk.org/show_bug.cgi?id=1273

JoyceKong (joyce.kong@arm.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|IN_PROGRESS                 |RESOLVED
         Resolution|---                         |FIXED

--- Comment #5 from JoyceKong (joyce.kong@arm.com) ---
https://patches.dpdk.org/project/dpdk/patch/20230904071041.3403495-1-joyce.kong@arm.com/

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[Bug 1273] eth_memif_rx segfault when burst size is greater than 32

[bugzilla]

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https://bugs.dpdk.org/show_bug.cgi?id=1273

David Marchand (david.marchand@redhat.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|FIXED                       |---
             Status|RESOLVED                    |CONFIRMED
                 CC|                            |david.marchand@redhat.com

--- Comment #6 from David Marchand (david.marchand@redhat.com) ---
This patch is not merged.
Don't mark as resolved until the fix makes it into DPDK.

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[Bug 1273] eth_memif_rx segfault when burst size is greater than 32

[bugzilla]

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https://bugs.dpdk.org/show_bug.cgi?id=1273

David Marchand (david.marchand@redhat.com) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|CONFIRMED                   |RESOLVED

--- Comment #7 from David Marchand (david.marchand@redhat.com) ---
Fixed in cd7b0da68287 ("net/memif: fix crash with large Rx burst").

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