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msm: ipa: Fix use-after-free in ipa3_alloc_counter_id

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Make changes to memcopy before preload end.

Change-Id: 	Icc056a3bcd5b739b8165813202c87dd84e72c78a
Signed-off-by: Michael Adisumarta <madisuma@codeaurora.org>
This commit is contained in:
Michael Adisumarta 2020-10-08 16:22:27 -07:00
commit 0d5800910f
1 changed files with 1 additions and 1 deletions
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drivers/platform/msm/ipa/ipa_v3/ipa_utils.c
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@ -7057,9 +7057,9 @@ mark_sw_cnt:
done:
/* get a handle from idr for dealloc */
counter->hdl = __ipa3_alloc_counter_hdl(counter);
memcpy(header, counter, sizeof(struct ipa_ioc_flt_rt_counter_alloc));
spin_unlock(&ipa3_ctx->flt_rt_counters.hdl_lock);
idr_preload_end();
memcpy(header, counter, sizeof(struct ipa_ioc_flt_rt_counter_alloc));
return 0;
err: