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Tue, 26 Nov 2024 10:13:06 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Date: Tue, 26 Nov 2024 16:12:45 +0100 From: "Arnd Bergmann" To: "Naresh Kamboju" , audit@vger.kernel.org, "open list" , lkft-triage@lists.linaro.org, "Linux Regressions" Cc: "Eric Paris" , "Paul Moore" , "Dan Carpenter" , "Anders Roxell" , "Yafang Shao" Message-Id: <29ab783d-86e2-4528-a6ad-083f8baf56d1@app.fastmail.com> In-Reply-To: References: Subject: Re: include/linux/fortify-string.h:293:17: error: call to '__write_overflow' declared with attribute error: detected write beyond size of object (1st parameter) Content-Type: text/plain Content-Transfer-Encoding: 7bit On Tue, Nov 26, 2024, at 15:58, Naresh Kamboju wrote: > Build error: > --------- > In function 'sized_strscpy', > inlined from '__audit_ptrace' at kernel/auditsc.c:2732:2: > include/linux/fortify-string.h:293:17: error: call to > '__write_overflow' declared with attribute error: detected write > beyond size of object (1st parameter) > 293 | __write_overflow(); > | ^~~~~~~~~~~~~~~~~~ > In function 'sized_strscpy', > inlined from 'audit_signal_info_syscall' at kernel/auditsc.c:2759:3: > include/linux/fortify-string.h:293:17: error: call to > '__write_overflow' declared with attribute error: detected write > beyond size of object (1st parameter) > 293 | __write_overflow(); > | ^~~~~~~~~~~~~~~~~~ > make[4]: *** [scripts/Makefile.build:229: kernel/auditsc.o] Error 1 I have run into this specific one before but failed to come up with a working fix. I think the specific warning started with https://lore.kernel.org/all/20240828030321.20688-3-laoar.shao@gmail.com/ but reverting that just replaces it with a slightly different warning. In my randconfig tree I have a patch that comments out the two security_task_getlsmprop_obj(), and I don't think I get warnings at the moment, but I no longer see why I would have done that. Arnd