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IB/core: Fix oops in ib_cache_gid_set_default_gid
author
Doug Ledford
<dledford@redhat.com>
Sat, 23 Apr 2016 00:14:58 +0000
(20:14 -0400)
committer
Doug Ledford
<dledford@redhat.com>
Sat, 23 Apr 2016 00:14:58 +0000
(20:14 -0400)
When we fail to find the default gid index, we can't continue
processing in this routine or else we will pass a negative
index to later routines resulting in invalid memory access
attempts and a kernel oops.
Fixes: 03db3a2d81e6 (IB/core: Add RoCE GID table management)
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/core/cache.c
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diff --git
a/drivers/infiniband/core/cache.c
b/drivers/infiniband/core/cache.c
index cb00d59da45616af57a03f29454434ec50fa9826..c2e257d97effb9813ef22b58ab580507dbf4134d 100644
(file)
--- a/
drivers/infiniband/core/cache.c
+++ b/
drivers/infiniband/core/cache.c
@@
-691,7
+691,8
@@
void ib_cache_gid_set_default_gid(struct ib_device *ib_dev, u8 port,
NULL);
/* Coudn't find default GID location */
- WARN_ON(ix < 0);
+ if (WARN_ON(ix < 0))
+ goto release;
zattr_type.gid_type = gid_type;
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