The quilt patch titled Subject: selftest mm/mseal: style change has been removed from the -mm tree. Its filename was selftest-mm-mseal-read-only-elf-memory-segment-fix.patch This patch was dropped because it was folded into selftest-mm-mseal-read-only-elf-memory-segment.patch ------------------------------------------------------ From: Jeff Xu Subject: selftest mm/mseal: style change Date: Tue, 16 Apr 2024 22:09:44 +0000 remove "assert" from testcase. remove "return 0" Link: https://lkml.kernel.org/r/20240416220944.2481203-2-jeffxu@chromium.org Signed-off-by: Jeff Xu Suggested-by: Muhammad Usama Anjum Reviewed-by: Muhammad Usama Anjum Cc: Amer Al Shanawany Cc: Dave Hansen Cc: Greg Kroah-Hartman Cc: Guenter Roeck Cc: Jann Horn Cc: Javier Carrasco Cc: Jeff Xu Cc: Jonathan Corbet Cc: Jorge Lucangeli Obes Cc: Kees Cook Cc: Liam R. Howlett Cc: Linus Torvalds Cc: Matthew Wilcox (Oracle) Cc: Pedro Falcato Cc: Shuah Khan Cc: Stephen Röttger Cc: Suren Baghdasaryan Signed-off-by: Andrew Morton --- tools/testing/selftests/mm/mseal_test.c | 124 ++++++++++++++++------ tools/testing/selftests/mm/seal_elf.c | 3 2 files changed, 91 insertions(+), 36 deletions(-) --- a/tools/testing/selftests/mm/mseal_test.c~selftest-mm-mseal-read-only-elf-memory-segment-fix +++ a/tools/testing/selftests/mm/mseal_test.c @@ -12,9 +12,7 @@ #include #include #include -#include #include -#include #include #include #include @@ -189,7 +187,6 @@ static void __write_pkey_reg(u64 pkey_re asm volatile(".byte 0x0f,0x01,0xef\n\t" : : "a" (eax), "c" (ecx), "d" (edx)); - assert(pkey_reg == __read_pkey_reg()); #endif } @@ -214,7 +211,6 @@ static void set_pkey(int pkey, unsigned unsigned long mask = (PKEY_DISABLE_ACCESS | PKEY_DISABLE_WRITE); u64 new_pkey_reg; - assert(!(pkey_value & ~mask)); new_pkey_reg = set_pkey_bits(__read_pkey_reg(), pkey, pkey_value); __write_pkey_reg(new_pkey_reg); } @@ -224,7 +220,6 @@ static void setup_single_address(int siz void *ptr; ptr = sys_mmap(NULL, size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0); - assert(ptr != (void *)-1); *ptrOut = ptr; } @@ -234,24 +229,21 @@ static void setup_single_address_rw(int unsigned long mapflags = MAP_ANONYMOUS | MAP_PRIVATE; ptr = sys_mmap(NULL, size, PROT_READ | PROT_WRITE, mapflags, -1, 0); - assert(ptr != (void *)-1); *ptrOut = ptr; } -static void clean_single_address(void *ptr, int size) +static int clean_single_address(void *ptr, int size) { int ret; - ret = munmap(ptr, size); - assert(!ret); + return ret; } -static void seal_single_address(void *ptr, int size) +static int seal_single_address(void *ptr, int size) { int ret; - ret = sys_mseal(ptr, size); - assert(!ret); + return ret; } bool seal_support(void) @@ -290,6 +282,7 @@ static void test_seal_addseal(void) unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); ret = sys_mseal(ptr, size); FAIL_TEST_IF_FALSE(!ret); @@ -305,6 +298,7 @@ static void test_seal_unmapped_start(voi unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* munmap 2 pages from ptr. */ ret = sys_munmap(ptr, 2 * page_size); @@ -332,6 +326,7 @@ static void test_seal_unmapped_middle(vo unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* munmap 2 pages from ptr + page. */ ret = sys_munmap(ptr + page_size, 2 * page_size); @@ -363,6 +358,7 @@ static void test_seal_unmapped_end(void) unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* unmap last 2 pages. */ ret = sys_munmap(ptr + 2 * page_size, 2 * page_size); @@ -391,6 +387,7 @@ static void test_seal_multiple_vmas(void unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split the vma into 3. */ ret = sys_mprotect(ptr + page_size, 2 * page_size, @@ -421,6 +418,7 @@ static void test_seal_split_start(void) unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split at middle */ ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE); @@ -445,6 +443,7 @@ static void test_seal_split_end(void) unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split at middle */ ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE); @@ -469,7 +468,9 @@ static void test_seal_invalid_input(void int ret; setup_single_address(8 * page_size, &ptr); - clean_single_address(ptr + 4 * page_size, 4 * page_size); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); + ret = clean_single_address(ptr + 4 * page_size, 4 * page_size); + FAIL_TEST_IF_FALSE(!ret); /* invalid flag */ ret = syscall(__NR_mseal, ptr, size, 0x20); @@ -502,6 +503,7 @@ static void test_seal_zero_length(void) int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); ret = sys_mprotect(ptr, 0, PROT_READ | PROT_WRITE); FAIL_TEST_IF_FALSE(!ret); @@ -551,6 +553,7 @@ static void test_seal_twice(void) unsigned long size = 4 * page_size; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); ret = sys_mseal(ptr, size); FAIL_TEST_IF_FALSE(!ret); @@ -570,9 +573,12 @@ static void test_seal_mprotect(bool seal int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); - if (seal) - seal_single_address(ptr, size); + if (seal) { + ret = seal_single_address(ptr, size); + FAIL_TEST_IF_FALSE(!ret); + } ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE); if (seal) @@ -591,9 +597,12 @@ static void test_seal_start_mprotect(boo int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); - if (seal) - seal_single_address(ptr, page_size); + if (seal) { + ret = seal_single_address(ptr, page_size); + FAIL_TEST_IF_FALSE(!ret); + } /* the first page is sealed. */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -618,9 +627,12 @@ static void test_seal_end_mprotect(bool int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); - if (seal) - seal_single_address(ptr + page_size, 3 * page_size); + if (seal) { + ret = seal_single_address(ptr + page_size, 3 * page_size); + FAIL_TEST_IF_FALSE(!ret); + } /* first page is not sealed */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -645,9 +657,12 @@ static void test_seal_mprotect_unalign_l int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); - if (seal) - seal_single_address(ptr, page_size * 2 - 1); + if (seal) { + ret = seal_single_address(ptr, page_size * 2 - 1); + FAIL_TEST_IF_FALSE(!ret); + } /* 2 pages are sealed. */ ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE); @@ -671,8 +686,11 @@ static void test_seal_mprotect_unalign_l int ret; setup_single_address(size, &ptr); - if (seal) - seal_single_address(ptr, page_size * 2 + 1); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); + if (seal) { + ret = seal_single_address(ptr, page_size * 2 + 1); + FAIL_TEST_IF_FALSE(!ret); + } /* 3 pages are sealed. */ ret = sys_mprotect(ptr, page_size * 3, PROT_READ | PROT_WRITE); @@ -696,13 +714,16 @@ static void test_seal_mprotect_two_vma(b int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split */ ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE); FAIL_TEST_IF_FALSE(!ret); - if (seal) - seal_single_address(ptr, page_size * 4); + if (seal) { + ret = seal_single_address(ptr, page_size * 4); + FAIL_TEST_IF_FALSE(!ret); + } ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE); if (seal) @@ -728,14 +749,17 @@ static void test_seal_mprotect_two_vma_w int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split as two vma. */ ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE); FAIL_TEST_IF_FALSE(!ret); /* mseal can apply across 2 vma, also split them. */ - if (seal) - seal_single_address(ptr + page_size, page_size * 2); + if (seal) { + ret = seal_single_address(ptr + page_size, page_size * 2); + FAIL_TEST_IF_FALSE(!ret); + } /* the first page is not sealed. */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -772,10 +796,13 @@ static void test_seal_mprotect_partial_m int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* seal one page. */ - if (seal) - seal_single_address(ptr, page_size); + if (seal) { + ret = seal_single_address(ptr, page_size); + FAIL_TEST_IF_FALSE(!ret); + } /* mprotect first 2 page will fail, since the first page are sealed. */ ret = sys_mprotect(ptr, 2 * page_size, PROT_READ | PROT_WRITE); @@ -795,6 +822,7 @@ static void test_seal_mprotect_two_vma_w int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split. */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -837,6 +865,7 @@ static void test_seal_mprotect_split(boo int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split. */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -873,6 +902,7 @@ static void test_seal_mprotect_merge(boo int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split one page. */ ret = sys_mprotect(ptr, page_size, PROT_READ | PROT_WRITE); @@ -906,6 +936,7 @@ static void test_seal_munmap(bool seal) int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -936,6 +967,7 @@ static void test_seal_munmap_two_vma(boo int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect to split */ ret = sys_mprotect(ptr, page_size * 2, PROT_READ | PROT_WRITE); @@ -976,6 +1008,7 @@ static void test_seal_munmap_vma_with_ga int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); ret = sys_munmap(ptr + page_size, page_size * 2); FAIL_TEST_IF_FALSE(!ret); @@ -1007,6 +1040,7 @@ static void test_munmap_start_freed(bool int prot; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* unmap the first page. */ ret = sys_munmap(ptr, page_size); @@ -1045,6 +1079,8 @@ static void test_munmap_end_freed(bool s int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); + /* unmap last page. */ ret = sys_munmap(ptr + page_size * 3, page_size); FAIL_TEST_IF_FALSE(!ret); @@ -1074,6 +1110,8 @@ static void test_munmap_middle_freed(boo int prot; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); + /* unmap 2 pages in the middle. */ ret = sys_munmap(ptr + page_size, page_size * 2); FAIL_TEST_IF_FALSE(!ret); @@ -1116,6 +1154,7 @@ static void test_seal_mremap_shrink(bool void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1144,6 +1183,7 @@ static void test_seal_mremap_expand(bool void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* ummap last 2 pages. */ ret = sys_munmap(ptr + 2 * page_size, 2 * page_size); FAIL_TEST_IF_FALSE(!ret); @@ -1175,8 +1215,11 @@ static void test_seal_mremap_move(bool s void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); setup_single_address(size, &newPtr); - clean_single_address(newPtr, size); + FAIL_TEST_IF_FALSE(newPtr != (void *)-1); + ret = clean_single_address(newPtr, size); + FAIL_TEST_IF_FALSE(!ret); if (seal) { ret = sys_mseal(ptr, size); @@ -1205,6 +1248,7 @@ static void test_seal_mmap_overwrite_pro void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1232,6 +1276,7 @@ static void test_seal_mmap_expand(bool s void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* ummap last 4 pages. */ ret = sys_munmap(ptr + 8 * page_size, 4 * page_size); FAIL_TEST_IF_FALSE(!ret); @@ -1262,6 +1307,7 @@ static void test_seal_mmap_shrink(bool s void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1290,7 +1336,9 @@ static void test_seal_mremap_shrink_fixe void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); setup_single_address(size, &newAddr); + FAIL_TEST_IF_FALSE(newAddr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1319,7 +1367,9 @@ static void test_seal_mremap_expand_fixe void *ret2; setup_single_address(page_size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); setup_single_address(size, &newAddr); + FAIL_TEST_IF_FALSE(newAddr != (void *)-1); if (seal) { ret = sys_mseal(newAddr, size); @@ -1348,7 +1398,9 @@ static void test_seal_mremap_move_fixed( void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); setup_single_address(size, &newAddr); + FAIL_TEST_IF_FALSE(newAddr != (void *)-1); if (seal) { ret = sys_mseal(newAddr, size); @@ -1375,6 +1427,7 @@ static void test_seal_mremap_move_fixed_ void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1406,6 +1459,7 @@ static void test_seal_mremap_move_dontun void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1434,6 +1488,7 @@ static void test_seal_mremap_move_dontun void *ret2; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); if (seal) { ret = sys_mseal(ptr, size); @@ -1469,6 +1524,7 @@ static void test_seal_merge_and_split(vo /* (24 RO) */ setup_single_address(24 * page_size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); /* use mprotect(NONE) to set out boundary */ /* (1 NONE) (22 RO) (1 NONE) */ @@ -1700,9 +1756,12 @@ static void test_seal_discard_ro_anon(bo int ret; setup_single_address(size, &ptr); + FAIL_TEST_IF_FALSE(ptr != (void *)-1); - if (seal) - seal_single_address(ptr, size); + if (seal) { + ret = seal_single_address(ptr, size); + FAIL_TEST_IF_FALSE(!ret); + } ret = sys_madvise(ptr, size, MADV_DONTNEED); if (seal) @@ -1832,5 +1891,4 @@ int main(int argc, char **argv) test_seal_discard_ro_anon_on_pkey(true); ksft_finished(); - return 0; } --- a/tools/testing/selftests/mm/seal_elf.c~selftest-mm-mseal-read-only-elf-memory-segment-fix +++ a/tools/testing/selftests/mm/seal_elf.c @@ -12,9 +12,7 @@ #include #include #include -#include #include -#include #include #include #include @@ -179,5 +177,4 @@ int main(int argc, char **argv) test_seal_elf(); ksft_finished(); - return 0; } _ Patches currently in -mm which might be from jeffxu@chromium.org are mseal-wire-up-mseal-syscall.patch mseal-add-mseal-syscall.patch selftest-mm-mseal-memory-sealing.patch mseal-add-documentation.patch selftest-mm-mseal-read-only-elf-memory-segment.patch selftest-mm-mseal-read-only-elf-memory-segment-fix-3.patch selftest-mm-mseal-read-only-elf-memory-segment-fix-4.patch