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McKenney" , "Peter Zijlstra (Intel)" , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20230126182302.GA687063@paulmck-ThinkPad-P17-Gen-1> References: <20230126182302.GA687063@paulmck-ThinkPad-P17-Gen-1> MIME-Version: 1.0 Message-ID: <167611145523.4906.11994571404061961204.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1757530963498348765?= X-GMAIL-MSGID: =?utf-8?q?1757530963498348765?= The following commit has been merged into the sched/core branch of tip: Commit-ID: 443ed4c302fff6a26af980300463343a7adc9ee8 Gitweb: https://git.kernel.org/tip/443ed4c302fff6a26af980300463343a7adc9ee8 Author: Peter Zijlstra AuthorDate: Mon, 30 Jan 2023 15:21:02 +01:00 Committer: Peter Zijlstra CommitterDate: Sat, 11 Feb 2023 11:18:08 +01:00 objtool: mem*() are not uaccess safe For mysterious raisins I listed the new __asan_mem*() functions as being uaccess safe, this is giving objtool fails on KASAN builds because these functions call out to the actual __mem*() functions which are not marked uaccess safe. Removing it doesn't make the robots unhappy. Fixes: 69d4c0d32186 ("entry, kasan, x86: Disallow overriding mem*() functions") Reported-by: "Paul E. McKenney" Bisected-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Link: https://lkml.kernel.org/r/20230126182302.GA687063@paulmck-ThinkPad-P17-Gen-1 --- tools/objtool/check.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 10b5bb4..b118f58 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -1083,9 +1083,6 @@ static const char *uaccess_safe_builtin[] = { "__asan_store16_noabort", "__kasan_check_read", "__kasan_check_write", - "__asan_memset", - "__asan_memmove", - "__asan_memcpy", /* KASAN in-line */ "__asan_report_load_n_noabort", "__asan_report_load1_noabort",