Message ID | 20220513202159.1550547-17-samitolvanen@google.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
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Fri, 13 May 2022 13:22:39 -0700 (PDT) Date: Fri, 13 May 2022 13:21:54 -0700 In-Reply-To: <20220513202159.1550547-1-samitolvanen@google.com> Message-Id: <20220513202159.1550547-17-samitolvanen@google.com> Mime-Version: 1.0 References: <20220513202159.1550547-1-samitolvanen@google.com> X-Developer-Key: i=samitolvanen@google.com; a=openpgp; fpr=35CCFB63B283D6D3AEB783944CB5F6848BBC56EE X-Developer-Signature: v=1; a=openpgp-sha256; l=641; h=from:subject; bh=BSMde0wfILoH9GAgh/AL2A0KfpejGhMH1EXBp0R87bA=; b=owEB7QES/pANAwAKAUy19oSLvFbuAcsmYgBifr3lS6DgGrgcdlTr4VdqCp+hJ4gok3CvQfxUBLVW A6LaMPeJAbMEAAEKAB0WIQQ1zPtjsoPW0663g5RMtfaEi7xW7gUCYn695QAKCRBMtfaEi7xW7gXFDA CHg4xEbmMadZBDqHqq0UEmifRbgTU4jfyD/g+/XScylIqJWRNr8acWg1Ez0oZ0wjApncrd0VTGbZOG N/N8qRTqHOujf3tWPFlD/3WoW4YHoqB79n1ZD01+aEGVLL5f5SV879mjfR/bQOxEJ2E98v+sgkOGlC c+zxC3gNrduPHvIGuK5jSsQ+g5DW+VP51Lw6g+FQgNRZQjtROp9VfPIFXTyQe8MqbHvDkX/ZFXNAu8 aKQvmfyrQSv32nXwOhRyUvBsq7YMNpEw5tdud1hVmJNg/0dGh2eY/AGjMa5JVsnVN4QbBLvgGhGqT9 camb6c2XcHf9mWoHSlfEG4e81gGiWkWMbkASfkHOBZ6EX/Z5HgYtH9N20zS4fMUYg9Di0ChEBrGYGv YLM333v24SOGwcOKOyNghGoUDw+juh4Quum23MthHk6uV+Ukmf7hTzsvyE7wy1D37AZGJpzk42FpKe 72X8bL5jcVLHUzRFwpfIXccSO7+M1E/jMAgXYvXsGlWA4= X-Mailer: git-send-email 2.36.0.550.gb090851708-goog Subject: [RFC PATCH v2 16/21] x86/tools/relocs: Ignore __kcfi_typeid_ relocations From: Sami Tolvanen <samitolvanen@google.com> To: linux-kernel@vger.kernel.org Cc: Kees Cook <keescook@chromium.org>, Josh Poimboeuf <jpoimboe@redhat.com>, Peter Zijlstra <peterz@infradead.org>, x86@kernel.org, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <ndesaulniers@google.com>, Joao Moreira <joao@overdrivepizza.com>, Sedat Dilek <sedat.dilek@gmail.com>, Steven Rostedt <rostedt@goodmis.org>, linux-hardening@vger.kernel.org, linux-arm-kernel@lists.infradead.org, llvm@lists.linux.dev, Sami Tolvanen <samitolvanen@google.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220513_132240_728133_5B3919AF X-CRM114-Status: GOOD ( 10.06 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: <linux-arm-kernel.lists.infradead.org> List-Unsubscribe: <http://lists.infradead.org/mailman/options/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe> List-Archive: <http://lists.infradead.org/pipermail/linux-arm-kernel/> List-Post: <mailto:linux-arm-kernel@lists.infradead.org> List-Help: <mailto:linux-arm-kernel-request@lists.infradead.org?subject=help> List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>, <mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe> Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org |
Series |
KCFI support
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expand
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On Fri, May 13, 2022 at 01:21:54PM -0700, Sami Tolvanen wrote: > Ignore __kcfi_typeid_ symbols. These are compiler-generated constants > that contain CFI type identifiers. > > Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org>
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c index e2c5b296120d..2925074b9a58 100644 --- a/arch/x86/tools/relocs.c +++ b/arch/x86/tools/relocs.c @@ -56,6 +56,7 @@ static const char * const sym_regex_kernel[S_NSYMTYPES] = { "^(xen_irq_disable_direct_reloc$|" "xen_save_fl_direct_reloc$|" "VDSO|" + "__kcfi_typeid_|" "__crc_)", /*
Ignore __kcfi_typeid_ symbols. These are compiler-generated constants that contain CFI type identifiers. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> --- arch/x86/tools/relocs.c | 1 + 1 file changed, 1 insertion(+)