Hello,
The documentation for this says that CONFIG_UBSAN_SANITIZE_ALL will massively increase the size of the kernel.
How much is this? A larger kernel generally means slower execution. Did you perform any benchmarks?
On 19 Mar 2022, at 21:09, Peter Müller peter.mueller@ipfire.org wrote:
Signed-off-by: Peter Müller peter.mueller@ipfire.org
config/kernel/kernel.config.aarch64-ipfire | 13 ++++++++++++- config/kernel/kernel.config.armv6l-ipfire | 13 ++++++++++++- config/kernel/kernel.config.riscv64-ipfire | 13 ++++++++++++- config/kernel/kernel.config.x86_64-ipfire | 13 ++++++++++++- 4 files changed, 48 insertions(+), 4 deletions(-)
diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire index d9179c061..b2ef43e51 100644 --- a/config/kernel/kernel.config.aarch64-ipfire +++ b/config/kernel/kernel.config.aarch64-ipfire @@ -8008,7 +8008,18 @@ CONFIG_DEBUG_FS_ALLOW_ALL=y CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y -# CONFIG_UBSAN is not set +CONFIG_UBSAN=y +# CONFIG_UBSAN_TRAP is not set +CONFIG_CC_HAS_UBSAN_BOUNDS=y +CONFIG_UBSAN_BOUNDS=y +CONFIG_UBSAN_ONLY_BOUNDS=y +CONFIG_UBSAN_SHIFT=y +# CONFIG_UBSAN_DIV_ZERO is not set +CONFIG_UBSAN_BOOL=y +CONFIG_UBSAN_ENUM=y +# CONFIG_UBSAN_ALIGNMENT is not set +CONFIG_UBSAN_SANITIZE_ALL=y +# CONFIG_TEST_UBSAN is not set CONFIG_HAVE_KCSAN_COMPILER=y # end of Generic Kernel Debugging Instruments
diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire index 522278160..13326a29c 100644 --- a/config/kernel/kernel.config.armv6l-ipfire +++ b/config/kernel/kernel.config.armv6l-ipfire @@ -7989,7 +7989,18 @@ CONFIG_DEBUG_FS_ALLOW_ALL=y # CONFIG_DEBUG_FS_ALLOW_NONE is not set CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set -# CONFIG_UBSAN is not set +CONFIG_UBSAN=y +# CONFIG_UBSAN_TRAP is not set +CONFIG_CC_HAS_UBSAN_BOUNDS=y +CONFIG_UBSAN_BOUNDS=y +CONFIG_UBSAN_ONLY_BOUNDS=y +CONFIG_UBSAN_SHIFT=y +# CONFIG_UBSAN_DIV_ZERO is not set +CONFIG_UBSAN_BOOL=y +CONFIG_UBSAN_ENUM=y +# CONFIG_UBSAN_ALIGNMENT is not set +CONFIG_UBSAN_SANITIZE_ALL=y +# CONFIG_TEST_UBSAN is not set CONFIG_HAVE_KCSAN_COMPILER=y # end of Generic Kernel Debugging Instruments
diff --git a/config/kernel/kernel.config.riscv64-ipfire b/config/kernel/kernel.config.riscv64-ipfire index ebb830eb7..fa4ee46fa 100644 --- a/config/kernel/kernel.config.riscv64-ipfire +++ b/config/kernel/kernel.config.riscv64-ipfire @@ -6597,7 +6597,18 @@ CONFIG_HAVE_ARCH_KGDB=y CONFIG_HAVE_ARCH_KGDB_QXFER_PKT=y # CONFIG_KGDB is not set CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y -# CONFIG_UBSAN is not set +CONFIG_UBSAN=y +# CONFIG_UBSAN_TRAP is not set +CONFIG_CC_HAS_UBSAN_BOUNDS=y +CONFIG_UBSAN_BOUNDS=y +CONFIG_UBSAN_ONLY_BOUNDS=y +CONFIG_UBSAN_SHIFT=y +# CONFIG_UBSAN_DIV_ZERO is not set +CONFIG_UBSAN_BOOL=y +CONFIG_UBSAN_ENUM=y +# CONFIG_UBSAN_ALIGNMENT is not set +CONFIG_UBSAN_SANITIZE_ALL=y +# CONFIG_TEST_UBSAN is not set CONFIG_HAVE_KCSAN_COMPILER=y # end of Generic Kernel Debugging Instruments
diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire index 675c3ce1e..e6a03a9e5 100644 --- a/config/kernel/kernel.config.x86_64-ipfire +++ b/config/kernel/kernel.config.x86_64-ipfire @@ -7430,7 +7430,18 @@ CONFIG_DEBUG_FS_ALLOW_ALL=y CONFIG_HAVE_ARCH_KGDB=y # CONFIG_KGDB is not set CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y -# CONFIG_UBSAN is not set +CONFIG_UBSAN=y +# CONFIG_UBSAN_TRAP is not set +CONFIG_CC_HAS_UBSAN_BOUNDS=y +CONFIG_UBSAN_BOUNDS=y +CONFIG_UBSAN_ONLY_BOUNDS=y +CONFIG_UBSAN_SHIFT=y +# CONFIG_UBSAN_DIV_ZERO is not set +CONFIG_UBSAN_BOOL=y +CONFIG_UBSAN_ENUM=y +# CONFIG_UBSAN_ALIGNMENT is not set +CONFIG_UBSAN_SANITIZE_ALL=y +# CONFIG_TEST_UBSAN is not set CONFIG_HAVE_ARCH_KCSAN=y CONFIG_HAVE_KCSAN_COMPILER=y
# CONFIG_KCSAN is not set
2.34.1