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[PATCH OLK-5.10] kobject_uevent: Fix OOB access within zap_modalias_env()
by He Yujie 29 Aug '24

29 Aug '24

From: Zijun Hu <quic_zijuhu(a)quicinc.com> stable inclusion from stable-v5.10.224 commit 648d5490460d38436640da0812bf7f6351c150d2 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAN70V CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit dd6e9894b451e7c85cceb8e9dc5432679a70e7dc upstream. zap_modalias_env() wrongly calculates size of memory block to move, so will cause OOB memory access issue if variable MODALIAS is not the last one within its @env parameter, fixed by correcting size to memmove. Fixes: 9b3fa47d4a76 ("kobject: fix suppressing modalias in uevents delivered over netlink") Cc: stable(a)vger.kernel.org Signed-off-by: Zijun Hu <quic_zijuhu(a)quicinc.com> Reviewed-by: Lk Sii <lk_sii(a)163.com> Link: https://lore.kernel.org/r/1717074877-11352-1-git-send-email-quic_zijuhu@qui… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> --- lib/kobject_uevent.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 8056def4c028..c0214080e233 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -432,8 +432,23 @@ static void zap_modalias_env(struct kobj_uevent_env *env) len = strlen(env->envp[i]) + 1; if (i != env->envp_idx - 1) { + /* @env->envp[] contains pointers to @env->buf[] + * with @env->buflen chars, and we are removing + * variable MODALIAS here pointed by @env->envp[i] + * with length @len as shown below: + * + * 0 @env->buf[] @env->buflen + * --------------------------------------------- + * ^ ^ ^ ^ + * | |-> @len <-| target block | + * @env->envp[0] @env->envp[i] @env->envp[i + 1] + * + * so the "target block" indicated above is moved + * backward by @len, and its right size is + * @env->buflen - (@env->envp[i + 1] - @env->envp[0]). + */ memmove(env->envp[i], env->envp[i + 1], - env->buflen - len); + env->buflen - (env->envp[i + 1] - env->envp[0])); for (j = i; j < env->envp_idx - 1; j++) env->envp[j] = env->envp[j + 1] - len; -- 2.34.1

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[PATCH openEuler-1.0-LTS] mm: avoid overflows in dirty throttling logic
by Wupeng Ma 29 Aug '24

29 Aug '24

From: Jan Kara <jack(a)suse.cz> stable inclusion from stable-v4.19.320 commit 2b2d2b8766db028bd827af34075f221ae9e9efff category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IAGRLH CVE: CVE-2024-42131 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 385d838df280eba6c8680f9777bfa0d0bfe7e8b2 ] The dirty throttling logic is interspersed with assumptions that dirty limits in PAGE_SIZE units fit into 32-bit (so that various multiplications fit into 64-bits). If limits end up being larger, we will hit overflows, possible divisions by 0 etc. Fix these problems by never allowing so large dirty limits as they have dubious practical value anyway. For dirty_bytes / dirty_background_bytes interfaces we can just refuse to set so large limits. For dirty_ratio / dirty_background_ratio it isn't so simple as the dirty limit is computed from the amount of available memory which can change due to memory hotplug etc. So when converting dirty limits from ratios to numbers of pages, we just don't allow the result to exceed UINT_MAX. This is root-only triggerable problem which occurs when the operator sets dirty limits to >16 TB. Link: https://lkml.kernel.org/r/20240621144246.11148-2-jack@suse.cz Signed-off-by: Jan Kara <jack(a)suse.cz> Reported-by: Zach O'Keefe <zokeefe(a)google.com> Reviewed-By: Zach O'Keefe <zokeefe(a)google.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Ma Wupeng <mawupeng1(a)huawei.com> --- mm/page-writeback.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/mm/page-writeback.c b/mm/page-writeback.c index 43e83930ce44..06d8242a926e 100644 --- a/mm/page-writeback.c +++ b/mm/page-writeback.c @@ -432,13 +432,20 @@ static void domain_dirty_limits(struct dirty_throttle_control *dtc) else bg_thresh = (bg_ratio * available_memory) / PAGE_SIZE; - if (bg_thresh >= thresh) - bg_thresh = thresh / 2; tsk = current; if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) { bg_thresh += bg_thresh / 4 + global_wb_domain.dirty_limit / 32; thresh += thresh / 4 + global_wb_domain.dirty_limit / 32; } + /* + * Dirty throttling logic assumes the limits in page units fit into + * 32-bits. This gives 16TB dirty limits max which is hopefully enough. + */ + if (thresh > UINT_MAX) + thresh = UINT_MAX; + /* This makes sure bg_thresh is within 32-bits as well */ + if (bg_thresh >= thresh) + bg_thresh = thresh / 2; dtc->thresh = thresh; dtc->bg_thresh = bg_thresh; @@ -488,7 +495,11 @@ static unsigned long node_dirty_limit(struct pglist_data *pgdat) if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) dirty += dirty / 4; - return dirty; + /* + * Dirty throttling logic assumes the limits in page units fit into + * 32-bits. This gives 16TB dirty limits max which is hopefully enough. + */ + return min_t(unsigned long, dirty, UINT_MAX); } /** @@ -527,10 +538,17 @@ int dirty_background_bytes_handler(struct ctl_table *table, int write, loff_t *ppos) { int ret; + unsigned long old_bytes = dirty_background_bytes; ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos); - if (ret == 0 && write) + if (ret == 0 && write) { + if (DIV_ROUND_UP(dirty_background_bytes, PAGE_SIZE) > + UINT_MAX) { + dirty_background_bytes = old_bytes; + return -ERANGE; + } dirty_background_ratio = 0; + } return ret; } @@ -558,6 +576,10 @@ int dirty_bytes_handler(struct ctl_table *table, int write, ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos); if (ret == 0 && write && vm_dirty_bytes != old_bytes) { + if (DIV_ROUND_UP(vm_dirty_bytes, PAGE_SIZE) > UINT_MAX) { + vm_dirty_bytes = old_bytes; + return -ERANGE; + } writeback_set_ratelimit(); vm_dirty_ratio = 0; } -- 2.25.1

2 1

[PATCH openEuler-22.03-LTS-SP1 0/1] CVE-2024-43892
by Chen Ridong 29 Aug '24

29 Aug '24

CVE-2024-43892 Shakeel Butt (1): memcg: protect concurrent access to mem_cgroup_idr mm/memcontrol.c | 23 +++++++++++++++++++++-- 1 file changed, 21 insertions(+), 2 deletions(-) -- 2.34.1

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[openeuler:OLK-5.10 26497/30000] arch/arm64/kvm/cvm.c:71:6: warning: no previous prototype for 'kvm_cvm_supports_sve'
by kernel test robot 29 Aug '24

29 Aug '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: b3492b88408a530f644afcd9e80b98cbf9883a82 commit: ae80c7e2f5cd3e50d1f360c387a33088310d54a0 [26497/30000] kvm: add cvm host feature config: arm64-defconfig (https://download.01.org/0day-ci/archive/20240829/202408290909.DJ1gYyO6-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290909.DJ1gYyO6-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202408290909.DJ1gYyO6-lkp@intel.com/ All warnings (new ones prefixed by >>): arch/arm64/kvm/cvm.c:42:5: warning: no previous prototype for 'cvm_phys_to_phys' [-Wmissing-prototypes] 42 | u64 cvm_phys_to_phys(u64 phys) | ^~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:71:6: warning: no previous prototype for 'kvm_cvm_supports_sve' [-Wmissing-prototypes] 71 | bool kvm_cvm_supports_sve(void) | ^~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:76:6: warning: no previous prototype for 'kvm_cvm_supports_pmu' [-Wmissing-prototypes] 76 | bool kvm_cvm_supports_pmu(void) | ^~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:81:5: warning: no previous prototype for 'kvm_cvm_ipa_limit' [-Wmissing-prototypes] 81 | u32 kvm_cvm_ipa_limit(void) | ^~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:86:5: warning: no previous prototype for 'kvm_cvm_get_num_brps' [-Wmissing-prototypes] 86 | u32 kvm_cvm_get_num_brps(void) | ^~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:91:5: warning: no previous prototype for 'kvm_cvm_get_num_wrps' [-Wmissing-prototypes] 91 | u32 kvm_cvm_get_num_wrps(void) | ^~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:240:5: warning: no previous prototype for 'kvm_cvm_create_ttt_levels' [-Wmissing-prototypes] 240 | int kvm_cvm_create_ttt_levels(struct kvm *kvm, struct cvm *cvm, | ^~~~~~~~~~~~~~~~~~~~~~~~~ >> arch/arm64/kvm/cvm.c:301:5: warning: no previous prototype for 'kvm_cvm_populate_par_region' [-Wmissing-prototypes] 301 | int kvm_cvm_populate_par_region(struct kvm *kvm, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/kvm_cvm_supports_sve +71 arch/arm64/kvm/cvm.c 70 > 71 bool kvm_cvm_supports_sve(void) 72 { 73 return tmm_supports(TMI_FEATURE_REGISTER_0_SVE_EN); 74 } 75 > 76 bool kvm_cvm_supports_pmu(void) 77 { 78 return tmm_supports(TMI_FEATURE_REGISTER_0_PMU_EN); 79 } 80 > 81 u32 kvm_cvm_ipa_limit(void) 82 { 83 return u64_get_bits(tmm_feat_reg0, TMI_FEATURE_REGISTER_0_S2SZ); 84 } 85 > 86 u32 kvm_cvm_get_num_brps(void) 87 { 88 return u64_get_bits(tmm_feat_reg0, TMI_FEATURE_REGISTER_0_NUM_BPS); 89 } 90 > 91 u32 kvm_cvm_get_num_wrps(void) 92 { 93 return u64_get_bits(tmm_feat_reg0, TMI_FEATURE_REGISTER_0_NUM_WPS); 94 } 95 96 static int cvm_vmid_reserve(void) 97 { 98 int ret; 99 unsigned int vmid_count = 1 << kvm_get_vmid_bits(); 100 101 spin_lock(&cvm_vmid_lock); 102 ret = bitmap_find_free_region(cvm_vmid_bitmap, vmid_count, 0); 103 spin_unlock(&cvm_vmid_lock); 104 105 return ret; 106 } 107 108 static void cvm_vmid_release(unsigned int vmid) 109 { 110 spin_lock(&cvm_vmid_lock); 111 bitmap_release_region(cvm_vmid_bitmap, vmid, 0); 112 spin_unlock(&cvm_vmid_lock); 113 } 114 115 static u32 __kvm_pgd_page_idx(struct kvm_pgtable *pgt, u64 addr) 116 { 117 u64 shift = ARM64_HW_PGTABLE_LEVEL_SHIFT(pgt->start_level - 1); 118 u64 mask = BIT(pgt->ia_bits) - 1; 119 120 return (addr & mask) >> shift; 121 } 122 123 static u32 kvm_pgd_pages(u32 ia_bits, u32 start_level) 124 { 125 struct kvm_pgtable pgt = { 126 .ia_bits = ia_bits, 127 .start_level = start_level, 128 }; 129 return __kvm_pgd_page_idx(&pgt, -1ULL) + 1; 130 } 131 132 int kvm_arm_create_cvm(struct kvm *kvm) 133 { 134 int ret; 135 struct kvm_pgtable *pgt = kvm->arch.mmu.pgt; 136 unsigned int pgd_sz; 137 138 if (!kvm_is_cvm(kvm) || kvm_cvm_state(kvm) != CVM_STATE_NONE) 139 return 0; 140 141 ret = cvm_vmid_reserve(); 142 if (ret < 0) 143 return ret; 144 145 kvm->arch.cvm.cvm_vmid = ret; 146 147 pgd_sz = kvm_pgd_pages(pgt->ia_bits, pgt->start_level); 148 149 kvm->arch.cvm.params->ttt_base = phys_to_cvm_phys(kvm->arch.mmu.pgd_phys); 150 kvm->arch.cvm.params->measurement_algo = 0; 151 kvm->arch.cvm.params->ttt_level_start = kvm->arch.mmu.pgt->start_level; 152 kvm->arch.cvm.params->ttt_num_start = pgd_sz; 153 kvm->arch.cvm.params->s2sz = VTCR_EL2_IPA(kvm->arch.vtcr); 154 kvm->arch.cvm.params->vmid = kvm->arch.cvm.cvm_vmid; 155 kvm->arch.cvm.params->ns_vtcr = kvm->arch.vtcr; 156 kvm->arch.cvm.params->vttbr_el2 = kvm->arch.mmu.pgd_phys; 157 ret = tmi_cvm_create(kvm->arch.cvm.rd, __pa(kvm->arch.cvm.params)); 158 if (!ret) 159 kvm_info("KVM creates cVM: %d\n", kvm->arch.cvm.cvm_vmid); 160 161 WRITE_ONCE(kvm->arch.cvm.state, CVM_STATE_NEW); 162 kfree(kvm->arch.cvm.params); 163 kvm->arch.cvm.params = NULL; 164 return ret; 165 } 166 167 int cvm_create_rd(struct kvm *kvm) 168 { 169 if (!static_key_enabled(&kvm_cvm_is_available)) 170 return -EFAULT; 171 172 kvm->arch.cvm.rd = tmi_mem_alloc(kvm->arch.cvm.rd, NO_NUMA, 173 TMM_MEM_TYPE_RD, TMM_MEM_MAP_SIZE_MAX); 174 if (!kvm->arch.cvm.rd) { 175 kvm_err("tmi_mem_alloc for cvm rd failed: %d\n", kvm->arch.cvm.cvm_vmid); 176 return -ENOMEM; 177 } 178 kvm->arch.is_cvm = true; 179 return 0; 180 } 181 182 void kvm_free_rd(struct kvm *kvm) 183 { 184 int ret; 185 186 if (!kvm->arch.cvm.rd) 187 return; 188 189 ret = tmi_mem_free(kvm->arch.cvm.rd, NO_NUMA, TMM_MEM_TYPE_RD, TMM_MEM_MAP_SIZE_MAX); 190 if (ret) 191 kvm_err("tmi_mem_free for cvm rd failed: %d\n", kvm->arch.cvm.cvm_vmid); 192 else 193 kvm->arch.cvm.rd = 0; 194 } 195 196 void kvm_destroy_cvm(struct kvm *kvm) 197 { 198 uint32_t cvm_vmid = kvm->arch.cvm.cvm_vmid; 199 200 kfree(kvm->arch.cvm.params); 201 kvm->arch.cvm.params = NULL; 202 203 if (kvm_cvm_state(kvm) == CVM_STATE_NONE) 204 return; 205 206 cvm_vmid_release(cvm_vmid); 207 208 WRITE_ONCE(kvm->arch.cvm.state, CVM_STATE_DYING); 209 210 if (!tmi_cvm_destroy(kvm->arch.cvm.rd)) 211 kvm_info("KVM has destroyed cVM: %d\n", kvm->arch.cvm.cvm_vmid); 212 213 kvm_free_rd(kvm); 214 } 215 216 static int kvm_get_host_numa_node_by_ipa(uint64_t ipa, struct kvm_vcpu *vcpu) 217 { 218 int i; 219 struct kvm_numa_info *numa_info = &vcpu->kvm->arch.cvm.numa_info; 220 221 for (i = 0; i < numa_info->numa_cnt && i < MAX_NUMA_NODE; i++) { 222 struct kvm_numa_node *numa_node = &numa_info->numa_nodes[i]; 223 224 if (ipa >= numa_node->ipa_start && 225 ipa < (numa_node->ipa_start + numa_node->ipa_size)) 226 return numa_node->host_numa_node; 227 } 228 return NO_NUMA; 229 } 230 231 static int kvm_cvm_ttt_create(struct cvm *cvm, 232 unsigned long addr, 233 int level, 234 phys_addr_t phys) 235 { 236 addr = ALIGN_DOWN(addr, cvm_ttt_level_mapsize(level - 1)); 237 return tmi_ttt_create(phys, cvm->rd, addr, level); 238 } 239 > 240 int kvm_cvm_create_ttt_levels(struct kvm *kvm, struct cvm *cvm, 241 unsigned long ipa, 242 int level, 243 int max_level, 244 struct kvm_mmu_memory_cache *mc) 245 { 246 if (WARN_ON(level == max_level)) 247 return 0; 248 249 while (level++ < max_level) { 250 phys_addr_t ttt; 251 252 ttt = tmi_mem_alloc(cvm->rd, NO_NUMA, 253 TMM_MEM_TYPE_TTT, TMM_MEM_MAP_SIZE_MAX); 254 if (ttt == 0) 255 return -ENOMEM; 256 257 if (kvm_cvm_ttt_create(cvm, ipa, level, ttt)) { 258 (void)tmi_mem_free(ttt, NO_NUMA, TMM_MEM_TYPE_TTT, TMM_MEM_MAP_SIZE_MAX); 259 return -ENXIO; 260 } 261 } 262 263 return 0; 264 } 265 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 26952/30000] drivers/ub/urma/ubcore/ubcore_vtp.c:261:6: warning: no previous prototype for function 'ubcore_hash_table_rmv_vtpn'
by kernel test robot 29 Aug '24

29 Aug '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: b3492b88408a530f644afcd9e80b98cbf9883a82 commit: 013280dfab06d20e73de842e8d2fc2a200055455 [26952/30000] urma: upload kernel patch for 20240224_rain config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240829/202408290746.znnxteuy-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290746.znnxteuy-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202408290746.znnxteuy-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/ub/urma/ubcore/ubcore_vtp.c:261:6: warning: no previous prototype for function 'ubcore_hash_table_rmv_vtpn' [-Wmissing-prototypes] 261 | void ubcore_hash_table_rmv_vtpn(struct ubcore_device *dev, struct ubcore_vtpn *vtpn) | ^ drivers/ub/urma/ubcore/ubcore_vtp.c:261:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 261 | void ubcore_hash_table_rmv_vtpn(struct ubcore_device *dev, struct ubcore_vtpn *vtpn) | ^ | static 1 warning generated. vim +/ubcore_hash_table_rmv_vtpn +261 drivers/ub/urma/ubcore/ubcore_vtp.c 260 > 261 void ubcore_hash_table_rmv_vtpn(struct ubcore_device *dev, struct ubcore_vtpn *vtpn) 262 { 263 struct ubcore_hash_table *ht; 264 265 ht = ubcore_get_vtpn_ht(dev, vtpn->trans_mode); 266 if (ht == NULL) 267 return; 268 ubcore_hash_table_remove(ht, &vtpn->hnode); 269 } 270 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 21426/23581] drivers/base/regmap/.tmp_regmap.o: warning: objtool: _regmap_raw_read()+0x22b: unreachable instruction
by kernel test robot 29 Aug '24

29 Aug '24

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 46d28312ab3cc0cfe7e8dea2f41d22fe4ac35e67 commit: d98c83e735e83721d3f995fe2bd190cf8aec8d78 [21426/23581] regmap: fix NULL deref on lookup config: x86_64-buildonly-randconfig-004-20240825 (https://download.01.org/0day-ci/archive/20240829/202408290700.9RGzzfB9-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290700.9RGzzfB9-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202408290700.9RGzzfB9-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/base/regmap/.tmp_regmap.o: warning: objtool: _regmap_raw_read()+0x22b: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10] BUILD REGRESSION b3492b88408a530f644afcd9e80b98cbf9883a82
by kernel test robot 29 Aug '24

29 Aug '24

tree/branch: https://gitee.com/openeuler/kernel.git OLK-5.10 branch HEAD: b3492b88408a530f644afcd9e80b98cbf9883a82 !11230 Bluetooth: MGMT: Add error handling to pair_device() Error/Warning ids grouped by kconfigs: recent_errors |-- arm64-allnoconfig | `-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration |-- arm64-randconfig-001-20240829 | |-- include-linux-backing-dev.h:warning:struct-cgroup_subsys-declared-inside-parameter-list-will-not-be-visible-outside-of-this-definition-or-declaration | `-- net-wireless-nl80211.c:warning:initialization-discards-const-qualifier-from-pointer-target-type |-- x86_64-allnoconfig | |-- include-linux-backing-dev.h:warning:declaration-of-struct-cgroup_subsys-will-not-be-visible-outside-of-this-function | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-allyesconfig | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr0 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr4 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_read_guest_page_mmu | |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:warning:no-previous-prototype-for-function-ubcore_create_dev_attr_files | |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:warning:no-previous-prototype-for-function-ubcore_create_port_attr_files | |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:warning:no-previous-prototype-for-function-ubcore_remove_dev_attr_files | |-- drivers-ub-urma-ubcore-ubcore_cdev_file.c:warning:no-previous-prototype-for-function-ubcore_remove_port_attr_files | |-- drivers-ub-urma-ubcore-ubcore_device.c:warning:no-previous-prototype-for-function-ubcore_dispatch_event | |-- drivers-ub-urma-ubcore-ubcore_device.c:warning:no-previous-prototype-for-function-ubcore_net_exit | |-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register | `-- net-wireless-nl80211.c:error:initializing-struct-netlink_range_validation-with-an-expression-of-type-const-struct-netlink_range_validation-discards-qualifiers-Werror-Wincompatible-pointer-types-discar |-- x86_64-buildonly-randconfig-001-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-buildonly-randconfig-002-20240829 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-kvm_post_set_cr0 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-kvm_post_set_cr4 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-kvm_read_guest_page_mmu | |-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register | `-- net-wireless-nl80211.c:warning:initialization-discards-const-qualifier-from-pointer-target-type |-- x86_64-buildonly-randconfig-003-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-buildonly-randconfig-004-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register |-- x86_64-buildonly-randconfig-005-20240829 | |-- arch-x86-kernel-paravirt.c:error:CALL_INSN_OPCODE-undeclared-(first-use-in-this-function) | |-- arch-x86-kernel-paravirt.c:error:CALL_INSN_SIZE-undeclared-(first-use-in-this-function) | |-- arch-x86-kernel-paravirt.c:error:implicit-declaration-of-function-__text_gen_insn | |-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register | `-- net-wireless-nl80211.c:warning:initialization-discards-const-qualifier-from-pointer-target-type |-- x86_64-buildonly-randconfig-006-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register |-- x86_64-defconfig | |-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register | `-- net-wireless-nl80211.c:warning:initialization-discards-const-qualifier-from-pointer-target-type |-- x86_64-randconfig-001-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-randconfig-002-20240829 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr0 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr4 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_read_guest_page_mmu | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-randconfig-003-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-klp_static_call_register |-- x86_64-randconfig-004-20240829 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr0 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr4 | |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_read_guest_page_mmu | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register |-- x86_64-randconfig-005-20240829 | `-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register `-- x86_64-rhel-8.3-rust |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr0 |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_post_set_cr4 |-- arch-x86-kvm-x86.c:warning:no-previous-prototype-for-function-kvm_read_guest_page_mmu |-- kernel-static_call_inline.c:warning:no-previous-prototype-for-function-klp_static_call_register `-- net-wireless-nl80211.c:error:initializing-struct-netlink_range_validation-with-an-expression-of-type-const-struct-netlink_range_validation-discards-qualifiers-Werror-Wincompatible-pointer-types-discar elapsed time: 742m configs tested: 21 configs skipped: 128 tested configs: arm64 allmodconfig clang-20 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240829 gcc-14.1.0 arm64 randconfig-002-20240829 gcc-14.1.0 arm64 randconfig-003-20240829 clang-20 arm64 randconfig-004-20240829 gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240829 clang-18 x86_64 buildonly-randconfig-002-20240829 gcc-12 x86_64 buildonly-randconfig-003-20240829 clang-18 x86_64 buildonly-randconfig-004-20240829 gcc-12 x86_64 buildonly-randconfig-005-20240829 gcc-12 x86_64 buildonly-randconfig-006-20240829 gcc-12 x86_64 defconfig gcc-11 x86_64 randconfig-001-20240829 clang-18 x86_64 randconfig-002-20240829 clang-18 x86_64 randconfig-003-20240829 gcc-12 x86_64 randconfig-004-20240829 clang-18 x86_64 randconfig-005-20240829 clang-18 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 29221/30000] arch/x86/kernel/paravirt.c:65:9: error: implicit declaration of function '__text_gen_insn'
by kernel test robot 29 Aug '24

29 Aug '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: b3492b88408a530f644afcd9e80b98cbf9883a82 commit: 822da186955cbcd69b4715b8a307053e6c756f30 [29221/30000] x86/ibt,paravirt: Use text_gen_insn() for paravirt_patch() config: x86_64-buildonly-randconfig-005-20240829 (https://download.01.org/0day-ci/archive/20240829/202408290612.YVWkhiUH-lkp@…) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290612.YVWkhiUH-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202408290612.YVWkhiUH-lkp@intel.com/ All errors (new ones prefixed by >>): arch/x86/kernel/paravirt.c: In function 'paravirt_patch_call': >> arch/x86/kernel/paravirt.c:65:9: error: implicit declaration of function '__text_gen_insn' [-Werror=implicit-function-declaration] 65 | __text_gen_insn(insn_buff, CALL_INSN_OPCODE, | ^~~~~~~~~~~~~~~ >> arch/x86/kernel/paravirt.c:65:36: error: 'CALL_INSN_OPCODE' undeclared (first use in this function) 65 | __text_gen_insn(insn_buff, CALL_INSN_OPCODE, | ^~~~~~~~~~~~~~~~ arch/x86/kernel/paravirt.c:65:36: note: each undeclared identifier is reported only once for each function it appears in >> arch/x86/kernel/paravirt.c:66:47: error: 'CALL_INSN_SIZE' undeclared (first use in this function) 66 | (void *)addr, target, CALL_INSN_SIZE); | ^~~~~~~~~~~~~~ arch/x86/kernel/paravirt.c: At top level: arch/x86/kernel/paravirt.c:99:13: warning: no previous prototype for 'native_pv_lock_init' [-Wmissing-prototypes] 99 | void __init native_pv_lock_init(void) | ^~~~~~~~~~~~~~~~~~~ arch/x86/kernel/paravirt.c: In function 'paravirt_patch_call': arch/x86/kernel/paravirt.c:68:1: warning: control reaches end of non-void function [-Wreturn-type] 68 | } | ^ cc1: some warnings being treated as errors vim +/__text_gen_insn +65 arch/x86/kernel/paravirt.c 61 62 static unsigned paravirt_patch_call(void *insn_buff, const void *target, 63 unsigned long addr, unsigned len) 64 { > 65 __text_gen_insn(insn_buff, CALL_INSN_OPCODE, > 66 (void *)addr, target, CALL_INSN_SIZE); 67 return CALL_INSN_SIZE; 68 } 69 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS] BUILD SUCCESS 46d28312ab3cc0cfe7e8dea2f41d22fe4ac35e67
by kernel test robot 29 Aug '24

29 Aug '24

tree/branch: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS branch HEAD: 46d28312ab3cc0cfe7e8dea2f41d22fe4ac35e67 !11185 kobject_uevent: Fix OOB access within zap_modalias_env() elapsed time: 748m configs tested: 19 configs skipped: 128 The following configs have been built successfully. More configs may be tested in the coming days. tested configs: arm64 allmodconfig gcc-14.1.0 arm64 allnoconfig gcc-14.1.0 arm64 randconfig-001-20240829 gcc-14.1.0 arm64 randconfig-002-20240829 gcc-14.1.0 arm64 randconfig-003-20240829 gcc-14.1.0 arm64 randconfig-004-20240829 gcc-14.1.0 x86_64 allnoconfig clang-18 x86_64 allyesconfig clang-18 x86_64 buildonly-randconfig-001-20240829 clang-18 x86_64 buildonly-randconfig-002-20240829 gcc-12 x86_64 buildonly-randconfig-003-20240829 clang-18 x86_64 buildonly-randconfig-004-20240829 gcc-12 x86_64 buildonly-randconfig-005-20240829 gcc-12 x86_64 buildonly-randconfig-006-20240829 gcc-12 x86_64 defconfig gcc-11 x86_64 randconfig-001-20240829 clang-18 x86_64 randconfig-002-20240829 clang-18 x86_64 randconfig-003-20240829 gcc-12 x86_64 rhel-8.3-rust clang-18 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 20748/23581] drivers/block/.tmp_nbd.o: warning: objtool: nbd_alloc_and_init_config()+0x165: unreachable instruction
by kernel test robot 29 Aug '24

29 Aug '24

Hi Yu, FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 46d28312ab3cc0cfe7e8dea2f41d22fe4ac35e67 commit: 9d0422bf311dfb36617e4d8f7367a3e7dc9179ec [20748/23581] nbd: fold nbd config initialization into nbd_alloc_config() config: x86_64-buildonly-randconfig-004-20240825 (https://download.01.org/0day-ci/archive/20240829/202408290453.uMJshGum-lkp@…) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240829/202408290453.uMJshGum-lkp@…) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202408290453.uMJshGum-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/block/nbd.c:17: In file included from include/linux/blkdev.h:16: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated. >> drivers/block/.tmp_nbd.o: warning: objtool: nbd_alloc_and_init_config()+0x165: unreachable instruction -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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