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| author | Magnus Karlsson <magnus.karlsson@intel.com> | 2020-11-03 10:41:30 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-11-04 21:37:29 +0100 |
| commit | 25cf73b9ff88fd4608699a0313f820758b4c252d (patch) | |
| tree | 5159c3cd3c814ba59c3f19ec4ed4ebc157153cb2 /tools/bpf | |
| parent | f78331f74cacb33d87cd60376dacc5bd397959e2 (diff) | |
| download | linux-stable-25cf73b9ff88fd4608699a0313f820758b4c252d.tar.gz linux-stable-25cf73b9ff88fd4608699a0313f820758b4c252d.tar.bz2 linux-stable-25cf73b9ff88fd4608699a0313f820758b4c252d.zip | |
libbpf: Fix possible use after free in xsk_socket__delete
Fix a possible use after free in xsk_socket__delete that will happen
if xsk_put_ctx() frees the ctx. To fix, save the umem reference taken
from the context and just use that instead.
Fixes: 2f6324a3937f ("libbpf: Support shared umems between queues and devices")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/1604396490-12129-3-git-send-email-magnus.karlsson@gmail.com
Diffstat (limited to 'tools/bpf')
0 files changed, 0 insertions, 0 deletions