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Wed, 25 Feb 2026 18:25:38 -0800 (PST) Received: from localhost ([2a07:de40:b240:0:2ad6:ed42:2ad6:ed42]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-483bd68826asm170589925e9.0.2026.02.25.18.25.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Feb 2026 18:25:37 -0800 (PST) To: ltp@lists.linux.it Date: Thu, 26 Feb 2026 02:25:25 +0000 Message-ID: <20260226022536.20175-1-wegao@suse.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260128002828.424-1-wegao@suse.com> References: <20260128002828.424-1-wegao@suse.com> MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 1.0.9 at in-7.smtp.seeweb.it X-Virus-Status: Clean Subject: [LTP] [PATCH v2] mseal02: Handle multiple errnos for 32-bit compat mode X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Wei Gao via ltp Reply-To: Wei Gao Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ltp-bounces+ltp=archiver.kernel.org@lists.linux.it Sender: "ltp" In 32-bit compat mode, the overflow_size (calculated using a 32-bit ULONG_MAX) does not cause a 64-bit integer wrap-around when added to the start address. Consequently, the kernel see valid range that points to unmapped space, returning ENOMEM instead of the expected EINVAL. Signed-off-by: Wei Gao --- testcases/kernel/syscalls/mseal/mseal02.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/testcases/kernel/syscalls/mseal/mseal02.c b/testcases/kernel/syscalls/mseal/mseal02.c index e11d7dbf4..7e0172bc3 100644 --- a/testcases/kernel/syscalls/mseal/mseal02.c +++ b/testcases/kernel/syscalls/mseal/mseal02.c @@ -58,6 +58,9 @@ static void setup(void) SAFE_MUNMAP(start_addr + twopages_size, page_size); unallocated_start_addr = start_addr + twopages_size; unallocated_end_addr = start_addr + page_size; + + if (tst_is_compat_mode()) + tcases[2].exp_err = ENOMEM; } static void cleanup(void) -- 2.52.0 -- Mailing list info: https://lists.linux.it/listinfo/ltp