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(parent: d6771c9) | patch
libbpf: Fix potential NULL pointer dereference
authorCiara Loftus <ciara.loftus@intel.com>
Thu, 8 Apr 2021 05:20:09 +0000 (05:20 +0000)
committerDaniel Borkmann <daniel@iogearbox.net>
Thu, 8 Apr 2021 21:36:46 +0000 (23:36 +0200)
commit0031fc408b9a92721244a6d8b2c60a6c533fde68
treec6daed3ba58f8fff559c91d57623889d1aac7b71tree | snapshot
parentd6771c96cac76eef1d1f885fcaed413fc10b4ea1commit | diff
libbpf: Fix potential NULL pointer dereference

Wait until after the UMEM is checked for null to dereference it.

Fixes: cc454b678747 ("libbpf: Restore umem state after socket create failure")
Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20210408052009.7844-1-ciara.loftus@intel.com
tools/lib/bpf/xsk.c diff | blob | history
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