diff options
| author |   Benoît Ganne <bganne@cisco.com> | 2021-04-29 18:24:24 +0200 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2021-05-21 19:50:14 +0000 |
| commit | a42c41be4eed3e1ce2a42038b07ce1d3420891cd (patch) | |
| tree | fc95c7c24cbef993cc2bef8742b3360123d70b66 /src/vnet/mfib/mfib_entry_cover.c | |
| parent | 92a8d761c412590f5112239be4c511091b2b2d5a (diff) | |
af_xdp: workaround kernel race between poll() and sendmsg()
Prior to Linux 5.6 there is a race condition between poll() and
sendmsg() in the kernel. This patch protects the syscalls with a lock
to prevent it, unless the NO_SYSCALL_LOCK flag is set at create time.
See
https://lore.kernel.org/bpf/BYAPR11MB365382C5DB1E5FCC53242609C1549@BYAPR11MB3653.namprd11.prod.outlook.com/
Type: fix
Change-Id: Ie7d4f5cb41f697b11a09b6046e54d190430d76df
Signed-off-by: Benoît Ganne <bganne@cisco.com>
Diffstat (limited to 'src/vnet/mfib/mfib_entry_cover.c')
0 files changed, 0 insertions, 0 deletions