| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.9 175/310] drm/amdkfd: NULL dereference involving create_process() | Date | Wed, 11 Apr 2018 20:35:14 +0200 |
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4.9-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter <dan.carpenter@oracle.com>
[ Upstream commit b312b2b25b6ac9e2eb03f4ca651b33108752de3a ]
We accidentally return ERR_PTR(0) which is NULL. The caller is not expecting that and it leads to an Oops.
Fixes: dd59239a9862 ("amdkfd: init aperture once per process") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Felix Kuehling <felix.kuehling@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -317,7 +317,8 @@ static struct kfd_process *create_proces /* init process apertures*/ process->is_32bit_user_mode = in_compat_syscall(); - if (kfd_init_apertures(process) != 0) + err = kfd_init_apertures(process); + if (err != 0) goto err_init_apretures; return process;
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