Prashant Bhole 6ef6d84cee bpf: sockmap: initialize sg table entries properly ...

When CONFIG_DEBUG_SG is set, sg->sg_magic is initialized in
sg_init_table() and it is verified in sg api while navigating. We hit
BUG_ON when magic check is failed.

In functions sg_tcp_sendpage and sg_tcp_sendmsg, the struct containing
the scatterlist is already zeroed out. So to avoid extra memset, we
use sg_init_marker() to initialize sg_magic.

Fixed following things:
- In bpf_tcp_sendpage: initialize sg using sg_init_marker
- In bpf_tcp_sendmsg: Replace sg_init_table with sg_init_marker
- In bpf_tcp_push: Replace memset with sg_init_table where consumed
  sg entry needs to be re-initialized.

Signed-off-by: Prashant Bhole <bhole_prashant_q7@lab.ntt.co.jp>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

2018-03-30 22:50:15 +02:00

..

arraymap.c

bpf: add schedule points in percpu arrays management

2018-02-22 21:27:06 +01:00

bpf_lru_list.c

bpf: lru: Lower the PERCPU_NR_SCANS from 16 to 4

2017-04-17 13:55:52 -04:00

bpf_lru_list.h

bpf: Only set node->ref = 1 if it has not been set

2017-09-01 09:57:39 -07:00

cgroup.c

bpf/cgroup: fix a verification error for a CGROUP_DEVICE type prog

2017-12-19 01:43:29 +01:00

core.c

bpf: fix bpf_prog_array_copy_to_user warning from perf event prog query

2018-02-14 08:59:37 -08:00

cpumap.c

bpf: cpumap: use GFP_KERNEL instead of GFP_ATOMIC in __cpu_map_entry_alloc()

2018-02-14 15:34:27 +01:00

devmap.c

bpf: add helper for copying attrs to struct bpf_map

2018-01-14 23:36:29 +01:00

disasm.c

bpf: Remove struct bpf_verifier_env argument from print_bpf_insn

2018-03-23 17:38:57 +01:00

disasm.h

bpf: Remove struct bpf_verifier_env argument from print_bpf_insn

2018-03-23 17:38:57 +01:00

hashtab.c

bpf: add helper for copying attrs to struct bpf_map

2018-01-14 23:36:29 +01:00

helpers.c

…

inode.c

bpf: comment why dots in filenames under BPF virtual FS are not allowed

2018-03-09 10:30:30 +01:00

lpm_trie.c

bpf: fix rcu lockdep warning for lpm_trie map_free callback

2018-02-22 21:29:12 +01:00

Makefile

bpf: only build sockmap with CONFIG_INET

2018-01-04 19:01:14 +01:00

map_in_map.c

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

map_in_map.h

bpf: Add syscall lookup support for fd array and htab

2017-06-29 13:13:25 -04:00

offload.c

bpf: offload: report device information about offloaded maps

2018-01-18 22:54:25 +01:00

percpu_freelist.c

bpf: fix lockdep splat

2017-11-15 19:46:32 +09:00

percpu_freelist.h

…

sockmap.c

bpf: sockmap: initialize sg table entries properly

2018-03-30 22:50:15 +02:00

stackmap.c

bpf: extend stackmap to save binary_build_id+offset instead of address

2018-03-15 01:09:28 +01:00

syscall.c

bpf: introduce BPF_RAW_TRACEPOINT

2018-03-28 22:55:19 +02:00

tnum.c

bpf/verifier: track signed and unsigned min/max values

2017-08-08 17:51:34 -07:00

verifier.c

bpf: Add bpf_verifier_vlog() and bpf_verifier_log_needed()

2018-03-26 09:58:17 +02:00