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msm: ipa: fix the use-after-free on qmi framework in ssr scenario

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IPA drvier free the qmi server hdl without notify the qmi
framework which is causing the use-after-free on QMI framework.
The fix is to notify qmi framework before freeing the qmi handle.

Change-Id: I1ec9d3efd29283fddd958561a538b2995222a53c
Signed-off-by: Bojun Pan <bojunp@codeaurora.org>
This commit is contained in:
Bojun Pan 2020-09-09 15:06:26 -07:00
commit 3b8fe1bc8e
1 changed files with 1 additions and 0 deletions
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1
drivers/platform/msm/ipa/ipa_v3/ipa_qmi_service.c
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@ -1507,6 +1507,7 @@ static void ipa3_q6_clnt_svc_arrive(struct work_struct *work)
IPAWANERR(
"ipa3_qmi_init_modem_send_sync_msg failed due to SSR!\n");
/* Cleanup when ipa3_wwan_remove is called */
qmi_handle_release(ipa_q6_clnt);
vfree(ipa_q6_clnt);
ipa_q6_clnt = NULL;
return;