From: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
When using the ibacm from rdma-core commit bf03566e0aa976afc5df,
setting the provider keyword in the ibacm_opts.cfg file to something
other than 'default' will cause ibacm to segfault on startup:
ibacm[32739]: segfault at 302e40 ip 000000000040432d
sp 00007ffe4039e1c0 error 4 in ibacm[400000+c000]
To re-produce the segfault, change the provider keyword in
ibacm_opts.cfg from:
provider ibacmp default
to:
provider ibacmp 0xFE80000000000000
When adding subnets to a provider subnet list, the incorrect list is
used. The list used is the provider_list (list of all providers)
rather than the (specific) provider subnet list.
This corrupts the provider_list, and causes ibacm to crash with the
above segfault.
Use the correct list when adding subnet information to a provider.
Fixes: 26e05f8304a506 ("ibacm: use ccan/list.h")
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@xxxxxxxxx>
---
ibacm/src/acm.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/ibacm/src/acm.c b/ibacm/src/acm.c
index 1ccef94..a67001d 100644
--- a/ibacm/src/acm.c
+++ b/ibacm/src/acm.c
@@ -2587,8 +2587,8 @@ static void acm_load_prov_config(void)
return;
}
subnet->subnet_prefix = htobe64(prefix);
- list_add_after(&provider_list, &prov->entry,
- &subnet->entry);
+ list_add_tail(&prov->subnet_list,
+ &subnet->entry);
}
}
}
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