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Sun, 25 Jan 2026 08:41:46 -0800 (PST) From: Xie Yuanbin To: linux@armlinux.org.uk, johannes@sipsolutions.net, masahiroy@kernel.org, jgross@suse.com, nsc@kernel.org, kees@kernel.org, tglx@kernel.org, mingo@kernel.org, frederic@kernel.org, paulmck@kernel.org, peterz@infradead.org, mathieu.desnoyers@efficios.com, luto@kernel.org, edumazet@google.com Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Xie Yuanbin Subject: [PATCH 7/9] ARM: entry: call __exit_to_user_mode_validate() when returning to user Date: Mon, 26 Jan 2026 00:40:14 +0800 Message-ID: <20260125164016.331257-8-qq570070308@gmail.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260125164016.331257-1-qq570070308@gmail.com> References: <20260125164016.331257-1-qq570070308@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Call __exit_to_user_mode_validate() when returning to user, just like what other architectures do. Signed-off-by: Xie Yuanbin --- arch/arm/kernel/entry.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/kernel/entry.c b/arch/arm/kernel/entry.c index 5de345e9146f..85df47b5c359 100644 --- a/arch/arm/kernel/entry.c +++ b/arch/arm/kernel/entry.c @@ -18,6 +18,7 @@ void arm_exit_to_user_mode_no_work_pending(void) if (IS_ENABLED(CONFIG_GENERIC_ENTRY)) tick_nohz_user_enter_prepare(); rseq_irqentry_exit_to_user_mode(); + __exit_to_user_mode_validate(); exit_to_user_mode(); #ifdef CONFIG_KSTACK_ERASE stackleak_erase_on_task_stack(); --=20 2.51.0