Zijian Zhang
44d0469f79
bpf: Add sk_is_inet and IS_ICSK check in tls_sw_has_ctx_tx/rx
...
As the introduction of the support for vsock and unix sockets in sockmap,
tls_sw_has_ctx_tx/rx cannot presume the socket passed in must be IS_ICSK.
vsock and af_unix sockets have vsock_sock and unix_sock instead of
inet_connection_sock. For these sockets, tls_get_ctx may return an invalid
pointer and cause page fault in function tls_sw_ctx_rx.
BUG: unable to handle page fault for address: 0000000000040030
Workqueue: vsock-loopback vsock_loopback_work
RIP: 0010:sk_psock_strp_data_ready+0x23/0x60
Call Trace:
? __die+0x81/0xc3
? no_context+0x194/0x350
? do_page_fault+0x30/0x110
? async_page_fault+0x3e/0x50
? sk_psock_strp_data_ready+0x23/0x60
virtio_transport_recv_pkt+0x750/0x800
? update_load_avg+0x7e/0x620
vsock_loopback_work+0xd0/0x100
process_one_work+0x1a7/0x360
worker_thread+0x30/0x390
? create_worker+0x1a0/0x1a0
kthread+0x112/0x130
? __kthread_cancel_work+0x40/0x40
ret_from_fork+0x1f/0x40
v2:
- Add IS_ICSK check
v3:
- Update the commits in Fixes
Fixes: 634f1a7110 ("vsock: support sockmap")
Fixes: 94531cfcbe ("af_unix: Add unix_stream_proto for sockmap")
Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com >
Acked-by: Stanislav Fomichev <sdf@fomichev.me >
Acked-by: Jakub Kicinski <kuba@kernel.org >
Reviewed-by: Cong Wang <cong.wang@bytedance.com >
Acked-by: Stefano Garzarella <sgarzare@redhat.com >
Link: https://lore.kernel.org/r/20241106003742.399240-1-zijianzhang@bytedance.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org >
2024-11-06 11:08:56 -08:00
..
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