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| Started by | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| First post | 2016-05-03 03:10 +0200 |
| Last post | 2016-05-03 03:10 +0200 |
| Articles | 1 — 1 participant |
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[PATCH 4.5 121/200] IB/core: Fix oops in ib_cache_gid_set_default_gid Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-05-03 03:10 +0200
| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Date | 2016-05-03 03:10 +0200 |
| Subject | [PATCH 4.5 121/200] IB/core: Fix oops in ib_cache_gid_set_default_gid |
| Message-ID | <rux0E-6wF-65@gated-at.bofh.it> |
4.5-stable review patch. If anyone has any objections, please let me know. ------------------ From: Doug Ledford <dledford@redhat.com> commit f4e7de63ab273b6a5e35c82eb4fc6363c855ddd4 upstream. 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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/infiniband/core/cache.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -691,7 +691,8 @@ void ib_cache_gid_set_default_gid(struct 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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