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[PATCH OLK-6.6 00/18] Backport some memory policy feature and bugfix from mainline
by Ze Zuo 05 Nov '25

05 Nov '25

Implementation of weight-based L/R memory interleaving allocation Gregory Price (3): mm/mempolicy: refactor a read-once mechanism into a function for re-use mm/mempolicy: introduce MPOL_WEIGHTED_INTERLEAVE for weighted interleaving mm/mempolicy: protect task interleave functions with tsk->mems_allowed_seq Honggyu Kim (1): mm/mempolicy: count MPOL_WEIGHTED_INTERLEAVE to "interleave_hit" Hugh Dickins (10): mempolicy: fix migrate_pages(2) syscall return nr_failed mempolicy trivia: delete those ancient pr_debug()s mempolicy trivia: slightly more consistent naming mempolicy trivia: use pgoff_t in shared mempolicy tree mempolicy: mpol_shared_policy_init() without pseudo-vma mempolicy: remove confusing MPOL_MF_LAZY dead code kernfs: drop shared NUMA mempolicy hooks mempolicy: alloc_pages_mpol() for NUMA policy without vma mempolicy: mmap_lock is not needed while migrating folios mempolicy: migration attempt to match interleave nodes Lukas Bulwahn (1): mempolicy: clean up minor dead code in queue_pages_test_walk() Rakie Kim (2): mm/mempolicy: implement the sysfs-based weighted_interleave interface mm/mempolicy: fix memory leaks in weighted interleave sysfs Ze Zuo (1): Revert "mm/mempolicy.c: fix the out-of-bounds access issue in mpol_parse_str" .../ABI/testing/sysfs-kernel-mm-mempolicy | 4 + ...fs-kernel-mm-mempolicy-weighted-interleave | 25 + .../admin-guide/mm/numa_memory_policy.rst | 9 + fs/kernfs/file.c | 49 - fs/proc/task_mmu.c | 5 +- include/linux/gfp.h | 10 +- include/linux/hugetlb.h | 9 - include/linux/mempolicy.h | 51 +- include/uapi/linux/mempolicy.h | 2 +- ipc/shm.c | 19 +- mm/hugetlb.c | 38 +- mm/mempolicy.c | 1505 ++++++++++------- mm/shmem.c | 77 +- mm/swap.h | 7 +- mm/swap_state.c | 81 +- mm/zswap.c | 7 +- 16 files changed, 1143 insertions(+), 755 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-kernel-mm-mempolicy create mode 100644 Documentation/ABI/testing/sysfs-kernel-mm-mempolicy-weighted-interleave -- 2.25.1

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[openeuler:OLK-6.6 3098/3098] kernel/bpf-rvi/common_kfuncs.c:233:27: warning: no previous prototype for 'bpf_mem_failure'
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 534b306a9ab27f36c465a7c90a32a1b4ff3a641c commit: 09893ff02def3af3147aff056dca7bee71c432f0 [3098/3098] bpf-rvi: Add bpf_mem_failure kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051752.bxOVRS5t-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051752.bxOVRS5t-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/202511051752.bxOVRS5t-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/bpf-rvi/common_kfuncs.c:27:32: warning: no previous prototype for 'bpf_mem_cgroup_from_task' [-Wmissing-prototypes] 27 | __bpf_kfunc struct mem_cgroup *bpf_mem_cgroup_from_task(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:36:35: warning: no previous prototype for 'bpf_task_active_pid_ns' [-Wmissing-prototypes] 36 | __bpf_kfunc struct pid_namespace *bpf_task_active_pid_ns(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:41:17: warning: no previous prototype for 'bpf_pidns_nr_tasks' [-Wmissing-prototypes] 41 | __bpf_kfunc u64 bpf_pidns_nr_tasks(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:55:17: warning: no previous prototype for 'bpf_pidns_last_pid' [-Wmissing-prototypes] 55 | __bpf_kfunc u32 bpf_pidns_last_pid(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:84:18: warning: no previous prototype for 'bpf_si_memswinfo' [-Wmissing-prototypes] 84 | __bpf_kfunc void bpf_si_memswinfo(struct bpf_sysinfo *bsi) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:94:27: warning: no previous prototype for 'bpf_page_counter_read' [-Wmissing-prototypes] 94 | __bpf_kfunc unsigned long bpf_page_counter_read(struct page_counter *counter) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:104:18: warning: no previous prototype for 'bpf_seq_file_append' [-Wmissing-prototypes] 104 | __bpf_kfunc void bpf_seq_file_append(struct seq_file *dst, struct seq_file *src) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:118:18: warning: no previous prototype for 'bpf_get_boottime_timens' [-Wmissing-prototypes] 118 | __bpf_kfunc void bpf_get_boottime_timens(struct task_struct *tsk, struct timespec64 *boottime) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:124:27: warning: no previous prototype for 'bpf_get_total_forks' [-Wmissing-prototypes] 124 | __bpf_kfunc unsigned long bpf_get_total_forks(void) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:129:26: warning: no previous prototype for 'bpf_nr_running' [-Wmissing-prototypes] 129 | __bpf_kfunc unsigned int bpf_nr_running(void) | ^~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:134:32: warning: no previous prototype for 'bpf_nr_context_switches' [-Wmissing-prototypes] 134 | __bpf_kfunc unsigned long long bpf_nr_context_switches(void) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:139:26: warning: no previous prototype for 'bpf_nr_iowait' [-Wmissing-prototypes] 139 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:145:26: warning: no previous prototype for 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 145 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:150:27: warning: no previous prototype for 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 150 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:155:18: warning: no previous prototype for 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 155 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:164:27: warning: no previous prototype for 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 164 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:169:27: warning: no previous prototype for 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 169 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:174:27: warning: no previous prototype for 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 174 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:180:27: warning: no previous prototype for 'bpf_mem_totalcma' [-Wmissing-prototypes] 180 | __bpf_kfunc unsigned long bpf_mem_totalcma(void) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:185:27: warning: no previous prototype for 'bpf_mem_freecma' [-Wmissing-prototypes] 185 | __bpf_kfunc unsigned long bpf_mem_freecma(void) | ^~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:200:17: warning: no previous prototype for 'bpf_hugetlb_report_meminfo' [-Wmissing-prototypes] 200 | __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:233:27: warning: no previous prototype for 'bpf_mem_failure' [-Wmissing-prototypes] 233 | __bpf_kfunc unsigned long bpf_mem_failure(void) | ^~~~~~~~~~~~~~~ vim +/bpf_mem_failure +233 kernel/bpf-rvi/common_kfuncs.c 179 > 180 __bpf_kfunc unsigned long bpf_mem_totalcma(void) 181 { 182 return totalcma_pages; 183 } 184 185 __bpf_kfunc unsigned long bpf_mem_freecma(void) 186 { 187 return global_zone_page_state(NR_FREE_CMA_PAGES); 188 } 189 190 struct bpf_mem_hugepage { 191 unsigned long total; 192 unsigned long free; 193 unsigned long rsvd; 194 unsigned long surp; 195 unsigned long size; 196 unsigned long hugetlb; 197 }; 198 199 #ifdef CONFIG_HUGETLB_PAGE 200 __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) 201 { 202 struct hstate *h; 203 unsigned long total = 0; 204 205 if (!hugepages_supported()) 206 return -1; 207 208 for_each_hstate(h) { 209 unsigned long count = h->nr_huge_pages; 210 211 total += huge_page_size(h) * count; 212 213 if (h == &default_hstate) { 214 hugepage_info->total = count; 215 hugepage_info->free = h->free_huge_pages; 216 hugepage_info->rsvd = h->resv_huge_pages; 217 hugepage_info->surp = h->surplus_huge_pages; 218 hugepage_info->size = huge_page_size(h) / SZ_1K; 219 } 220 } 221 222 hugepage_info->hugetlb = total / SZ_1K; 223 return 0; 224 } 225 #else 226 __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) 227 { 228 return -1; 229 } 230 #endif 231 232 #ifdef CONFIG_MEMORY_FAILURE > 233 __bpf_kfunc unsigned long bpf_mem_failure(void) 234 { 235 return atomic_long_read(&num_poisoned_pages) << (PAGE_SHIFT - 10); 236 } 237 #else 238 __bpf_kfunc unsigned long bpf_mem_failure(void) 239 { 240 return 0; 241 } 242 #endif 243 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3098/3098] kernel/bpf-rvi/common_kfuncs.c:200:17: warning: no previous prototype for 'bpf_hugetlb_report_meminfo'
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: fe656d8bc10b5c4ced04a8821909e64adc18a7ef commit: edd6acd9af851644d1673be6bebb16269c67e018 [3098/3098] bpf-rvi: Add bpf_hugetlb_report_meminfo kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051536.EFEBzJen-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051536.EFEBzJen-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/202511051536.EFEBzJen-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/bpf-rvi/common_kfuncs.c:27:32: warning: no previous prototype for 'bpf_mem_cgroup_from_task' [-Wmissing-prototypes] 27 | __bpf_kfunc struct mem_cgroup *bpf_mem_cgroup_from_task(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:36:35: warning: no previous prototype for 'bpf_task_active_pid_ns' [-Wmissing-prototypes] 36 | __bpf_kfunc struct pid_namespace *bpf_task_active_pid_ns(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:41:17: warning: no previous prototype for 'bpf_pidns_nr_tasks' [-Wmissing-prototypes] 41 | __bpf_kfunc u64 bpf_pidns_nr_tasks(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:55:17: warning: no previous prototype for 'bpf_pidns_last_pid' [-Wmissing-prototypes] 55 | __bpf_kfunc u32 bpf_pidns_last_pid(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:84:18: warning: no previous prototype for 'bpf_si_memswinfo' [-Wmissing-prototypes] 84 | __bpf_kfunc void bpf_si_memswinfo(struct bpf_sysinfo *bsi) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:94:27: warning: no previous prototype for 'bpf_page_counter_read' [-Wmissing-prototypes] 94 | __bpf_kfunc unsigned long bpf_page_counter_read(struct page_counter *counter) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:104:18: warning: no previous prototype for 'bpf_seq_file_append' [-Wmissing-prototypes] 104 | __bpf_kfunc void bpf_seq_file_append(struct seq_file *dst, struct seq_file *src) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:118:18: warning: no previous prototype for 'bpf_get_boottime_timens' [-Wmissing-prototypes] 118 | __bpf_kfunc void bpf_get_boottime_timens(struct task_struct *tsk, struct timespec64 *boottime) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:124:27: warning: no previous prototype for 'bpf_get_total_forks' [-Wmissing-prototypes] 124 | __bpf_kfunc unsigned long bpf_get_total_forks(void) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:129:26: warning: no previous prototype for 'bpf_nr_running' [-Wmissing-prototypes] 129 | __bpf_kfunc unsigned int bpf_nr_running(void) | ^~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:134:32: warning: no previous prototype for 'bpf_nr_context_switches' [-Wmissing-prototypes] 134 | __bpf_kfunc unsigned long long bpf_nr_context_switches(void) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:139:26: warning: no previous prototype for 'bpf_nr_iowait' [-Wmissing-prototypes] 139 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:145:26: warning: no previous prototype for 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 145 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:150:27: warning: no previous prototype for 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 150 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:155:18: warning: no previous prototype for 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 155 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:164:27: warning: no previous prototype for 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 164 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:169:27: warning: no previous prototype for 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 169 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:174:27: warning: no previous prototype for 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 174 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:180:27: warning: no previous prototype for 'bpf_mem_totalcma' [-Wmissing-prototypes] 180 | __bpf_kfunc unsigned long bpf_mem_totalcma(void) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:185:27: warning: no previous prototype for 'bpf_mem_freecma' [-Wmissing-prototypes] 185 | __bpf_kfunc unsigned long bpf_mem_freecma(void) | ^~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:200:17: warning: no previous prototype for 'bpf_hugetlb_report_meminfo' [-Wmissing-prototypes] 200 | __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/bpf_hugetlb_report_meminfo +200 kernel/bpf-rvi/common_kfuncs.c 198 199 #ifdef CONFIG_HUGETLB_PAGE > 200 __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) 201 { 202 struct hstate *h; 203 unsigned long total = 0; 204 205 if (!hugepages_supported()) 206 return -1; 207 208 for_each_hstate(h) { 209 unsigned long count = h->nr_huge_pages; 210 211 total += huge_page_size(h) * count; 212 213 if (h == &default_hstate) { 214 hugepage_info->total = count; 215 hugepage_info->free = h->free_huge_pages; 216 hugepage_info->rsvd = h->resv_huge_pages; 217 hugepage_info->surp = h->surplus_huge_pages; 218 hugepage_info->size = huge_page_size(h) / SZ_1K; 219 } 220 } 221 222 hugepage_info->hugetlb = total / SZ_1K; 223 return 0; 224 } 225 #else 226 __bpf_kfunc int bpf_hugetlb_report_meminfo(struct bpf_mem_hugepage *hugepage_info) 227 { 228 return -1; 229 } 230 #endif 231 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3098/3098] kernel/bpf-rvi/common_kfuncs.c:179:27: warning: no previous prototype for 'bpf_mem_totalcma'
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: fe656d8bc10b5c4ced04a8821909e64adc18a7ef commit: 9c449e4d9af5b69a1b9fdae9e3f18dc1515635b8 [3098/3098] bpf-rvi: Add bpf_mem_{total,free}cma kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051322.XbdPyERX-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051322.XbdPyERX-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/202511051322.XbdPyERX-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/bpf-rvi/common_kfuncs.c:26:32: warning: no previous prototype for 'bpf_mem_cgroup_from_task' [-Wmissing-prototypes] 26 | __bpf_kfunc struct mem_cgroup *bpf_mem_cgroup_from_task(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:35:35: warning: no previous prototype for 'bpf_task_active_pid_ns' [-Wmissing-prototypes] 35 | __bpf_kfunc struct pid_namespace *bpf_task_active_pid_ns(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:40:17: warning: no previous prototype for 'bpf_pidns_nr_tasks' [-Wmissing-prototypes] 40 | __bpf_kfunc u64 bpf_pidns_nr_tasks(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:54:17: warning: no previous prototype for 'bpf_pidns_last_pid' [-Wmissing-prototypes] 54 | __bpf_kfunc u32 bpf_pidns_last_pid(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:83:18: warning: no previous prototype for 'bpf_si_memswinfo' [-Wmissing-prototypes] 83 | __bpf_kfunc void bpf_si_memswinfo(struct bpf_sysinfo *bsi) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:93:27: warning: no previous prototype for 'bpf_page_counter_read' [-Wmissing-prototypes] 93 | __bpf_kfunc unsigned long bpf_page_counter_read(struct page_counter *counter) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:103:18: warning: no previous prototype for 'bpf_seq_file_append' [-Wmissing-prototypes] 103 | __bpf_kfunc void bpf_seq_file_append(struct seq_file *dst, struct seq_file *src) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:117:18: warning: no previous prototype for 'bpf_get_boottime_timens' [-Wmissing-prototypes] 117 | __bpf_kfunc void bpf_get_boottime_timens(struct task_struct *tsk, struct timespec64 *boottime) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:123:27: warning: no previous prototype for 'bpf_get_total_forks' [-Wmissing-prototypes] 123 | __bpf_kfunc unsigned long bpf_get_total_forks(void) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:128:26: warning: no previous prototype for 'bpf_nr_running' [-Wmissing-prototypes] 128 | __bpf_kfunc unsigned int bpf_nr_running(void) | ^~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:133:32: warning: no previous prototype for 'bpf_nr_context_switches' [-Wmissing-prototypes] 133 | __bpf_kfunc unsigned long long bpf_nr_context_switches(void) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:138:26: warning: no previous prototype for 'bpf_nr_iowait' [-Wmissing-prototypes] 138 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:144:26: warning: no previous prototype for 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 144 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:149:27: warning: no previous prototype for 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 149 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:154:18: warning: no previous prototype for 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 154 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:163:27: warning: no previous prototype for 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 163 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:168:27: warning: no previous prototype for 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 168 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:173:27: warning: no previous prototype for 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 173 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^~~~~~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:179:27: warning: no previous prototype for 'bpf_mem_totalcma' [-Wmissing-prototypes] 179 | __bpf_kfunc unsigned long bpf_mem_totalcma(void) | ^~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:184:27: warning: no previous prototype for 'bpf_mem_freecma' [-Wmissing-prototypes] 184 | __bpf_kfunc unsigned long bpf_mem_freecma(void) | ^~~~~~~~~~~~~~~ vim +/bpf_mem_totalcma +179 kernel/bpf-rvi/common_kfuncs.c 178 > 179 __bpf_kfunc unsigned long bpf_mem_totalcma(void) 180 { 181 return totalcma_pages; 182 } 183 > 184 __bpf_kfunc unsigned long bpf_mem_freecma(void) 185 { 186 return global_zone_page_state(NR_FREE_CMA_PAGES); 187 } 188 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3075/3075] drivers/ub/ubus/ubus_entity.c:56:6: warning: no previous prototype for function 'ub_entity_num_free'
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: f1418110051edb8e47923b009bbd051f7c06ad1a commit: 8ae16d21707c9299ad950c2511508a3d3407de7a [3075/3075] ub:ubus: Support UB device enabling basic interface config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20251105/202511051215.u37nznQt-lkp@…) compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051215.u37nznQt-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/202511051215.u37nznQt-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/ub/ubus/ubus_entity.c:35:19: warning: no previous prototype for function 'ub_alloc_ent' [-Wmissing-prototypes] 35 | struct ub_entity *ub_alloc_ent(void) | ^ drivers/ub/ubus/ubus_entity.c:35:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 35 | struct ub_entity *ub_alloc_ent(void) | ^ | static >> drivers/ub/ubus/ubus_entity.c:56:6: warning: no previous prototype for function 'ub_entity_num_free' [-Wmissing-prototypes] 56 | void ub_entity_num_free(struct ub_entity *uent) | ^ drivers/ub/ubus/ubus_entity.c:56:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 56 | void ub_entity_num_free(struct ub_entity *uent) | ^ | static drivers/ub/ubus/ubus_entity.c:157:5: warning: no previous prototype for function 'ub_setup_ent' [-Wmissing-prototypes] 157 | int ub_setup_ent(struct ub_entity *uent) | ^ drivers/ub/ubus/ubus_entity.c:157:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 157 | int ub_setup_ent(struct ub_entity *uent) | ^ | static drivers/ub/ubus/ubus_entity.c:220:6: warning: no previous prototype for function 'ub_entity_add' [-Wmissing-prototypes] 220 | void ub_entity_add(struct ub_entity *uent, void *ctx) | ^ drivers/ub/ubus/ubus_entity.c:220:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 220 | void ub_entity_add(struct ub_entity *uent, void *ctx) | ^ | static drivers/ub/ubus/ubus_entity.c:263:6: warning: no previous prototype for function 'ub_start_ent' [-Wmissing-prototypes] 263 | void ub_start_ent(struct ub_entity *uent) | ^ drivers/ub/ubus/ubus_entity.c:263:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 263 | void ub_start_ent(struct ub_entity *uent) | ^ | static drivers/ub/ubus/ubus_entity.c:312:6: warning: no previous prototype for function 'ub_remove_ent' [-Wmissing-prototypes] 312 | void ub_remove_ent(struct ub_entity *uent) | ^ drivers/ub/ubus/ubus_entity.c:312:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 312 | void ub_remove_ent(struct ub_entity *uent) | ^ | static drivers/ub/ubus/ubus_entity.c:343:6: warning: no previous prototype for function 'ub_stop_entities' [-Wmissing-prototypes] 343 | void ub_stop_entities(void) | ^ drivers/ub/ubus/ubus_entity.c:343:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 343 | void ub_stop_entities(void) | ^ | static drivers/ub/ubus/ubus_entity.c:347:6: warning: no previous prototype for function 'ub_remove_entities' [-Wmissing-prototypes] 347 | void ub_remove_entities(void) | ^ drivers/ub/ubus/ubus_entity.c:347:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 347 | void ub_remove_entities(void) | ^ | static 8 warnings generated. vim +/ub_entity_num_free +56 drivers/ub/ubus/ubus_entity.c 34 > 35 struct ub_entity *ub_alloc_ent(void) 36 { 37 struct ub_entity *uent; 38 39 uent = kzalloc(sizeof(*uent), GFP_KERNEL); 40 if (!uent) 41 return NULL; 42 43 INIT_LIST_HEAD(&uent->node); 44 INIT_LIST_HEAD(&uent->cna_list); 45 46 uent->dev.type = &ub_dev_type; 47 uent->cna = 0; 48 49 ub_entity_assign_priv_flag(uent, UB_ENTITY_DETACHED, true); 50 51 return uent; 52 } 53 EXPORT_SYMBOL_GPL(ub_alloc_ent); 54 55 static DEFINE_IDA(uent_num_ida); > 56 void ub_entity_num_free(struct ub_entity *uent) 57 { 58 ida_free(&uent_num_ida, uent->uent_num); 59 } 60 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH OLK-5.10 0/3] CVE-2025-22121
by Yongjian Sun 05 Nov '25

05 Nov '25

Ye Bin (2): ext4: introduce ITAIL helper ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all() Yongjian Sun (1): ext4: Restore the deleted check paths of the xattr. fs/ext4/inode.c | 5 +++++ fs/ext4/xattr.c | 15 ++++++--------- fs/ext4/xattr.h | 10 ++++++++++ 3 files changed, 21 insertions(+), 9 deletions(-) -- 2.39.2

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[openeuler:OLK-6.6 3098/3098] kernel/bpf-rvi/common_kfuncs.c:162:27: warning: no previous prototype for 'bpf_mem_file_hugepage'
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: f1418110051edb8e47923b009bbd051f7c06ad1a commit: d97bc9c8827bb5cd9f66dab10e0b505a879256e2 [3098/3098] bpf-rvi: Add bpf_mem_{file_{hugepage,pmdmapped},kreclaimable} kfunc config: x86_64-randconfig-001-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051134.JuwQrZOr-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051134.JuwQrZOr-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/202511051134.JuwQrZOr-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/bpf-rvi/common_kfuncs.c:25:32: warning: no previous prototype for 'bpf_mem_cgroup_from_task' [-Wmissing-prototypes] 25 | __bpf_kfunc struct mem_cgroup *bpf_mem_cgroup_from_task(struct task_struct *p) | ^~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:34:35: warning: no previous prototype for 'bpf_task_active_pid_ns' [-Wmissing-prototypes] 34 | __bpf_kfunc struct pid_namespace *bpf_task_active_pid_ns(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:39:17: warning: no previous prototype for 'bpf_pidns_nr_tasks' [-Wmissing-prototypes] 39 | __bpf_kfunc u64 bpf_pidns_nr_tasks(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:53:17: warning: no previous prototype for 'bpf_pidns_last_pid' [-Wmissing-prototypes] 53 | __bpf_kfunc u32 bpf_pidns_last_pid(struct pid_namespace *ns) | ^~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:82:18: warning: no previous prototype for 'bpf_si_memswinfo' [-Wmissing-prototypes] 82 | __bpf_kfunc void bpf_si_memswinfo(struct bpf_sysinfo *bsi) | ^~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:92:27: warning: no previous prototype for 'bpf_page_counter_read' [-Wmissing-prototypes] 92 | __bpf_kfunc unsigned long bpf_page_counter_read(struct page_counter *counter) | ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:102:18: warning: no previous prototype for 'bpf_seq_file_append' [-Wmissing-prototypes] 102 | __bpf_kfunc void bpf_seq_file_append(struct seq_file *dst, struct seq_file *src) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:116:18: warning: no previous prototype for 'bpf_get_boottime_timens' [-Wmissing-prototypes] 116 | __bpf_kfunc void bpf_get_boottime_timens(struct task_struct *tsk, struct timespec64 *boottime) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:122:27: warning: no previous prototype for 'bpf_get_total_forks' [-Wmissing-prototypes] 122 | __bpf_kfunc unsigned long bpf_get_total_forks(void) | ^~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:127:26: warning: no previous prototype for 'bpf_nr_running' [-Wmissing-prototypes] 127 | __bpf_kfunc unsigned int bpf_nr_running(void) | ^~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:132:32: warning: no previous prototype for 'bpf_nr_context_switches' [-Wmissing-prototypes] 132 | __bpf_kfunc unsigned long long bpf_nr_context_switches(void) | ^~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:137:26: warning: no previous prototype for 'bpf_nr_iowait' [-Wmissing-prototypes] 137 | __bpf_kfunc unsigned int bpf_nr_iowait(void) | ^~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:143:26: warning: no previous prototype for 'bpf_kstat_softirqs_cpu' [-Wmissing-prototypes] 143 | __bpf_kfunc unsigned int bpf_kstat_softirqs_cpu(unsigned int irq, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:148:27: warning: no previous prototype for 'bpf_kstat_cpu_irqs_sum' [-Wmissing-prototypes] 148 | __bpf_kfunc unsigned long bpf_kstat_cpu_irqs_sum(unsigned int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ kernel/bpf-rvi/common_kfuncs.c:153:18: warning: no previous prototype for 'bpf_kcpustat_cpu_fetch' [-Wmissing-prototypes] 153 | __bpf_kfunc void bpf_kcpustat_cpu_fetch(struct kernel_cpustat *dst, int cpu) | ^~~~~~~~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:162:27: warning: no previous prototype for 'bpf_mem_file_hugepage' [-Wmissing-prototypes] 162 | __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) | ^~~~~~~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:167:27: warning: no previous prototype for 'bpf_mem_file_pmdmapped' [-Wmissing-prototypes] 167 | __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) | ^~~~~~~~~~~~~~~~~~~~~~ >> kernel/bpf-rvi/common_kfuncs.c:172:27: warning: no previous prototype for 'bpf_mem_kreclaimable' [-Wmissing-prototypes] 172 | __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) | ^~~~~~~~~~~~~~~~~~~~ vim +/bpf_mem_file_hugepage +162 kernel/bpf-rvi/common_kfuncs.c 157 158 /* 159 * Meminfo related kfuncs 160 */ 161 > 162 __bpf_kfunc unsigned long bpf_mem_file_hugepage(void) 163 { 164 return global_node_page_state(NR_FILE_THPS); 165 } 166 > 167 __bpf_kfunc unsigned long bpf_mem_file_pmdmapped(void) 168 { 169 return global_node_page_state(NR_FILE_PMDMAPPED); 170 } 171 > 172 __bpf_kfunc unsigned long bpf_mem_kreclaimable(void) 173 { 174 return global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B) + 175 global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE); 176 } 177 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:openEuler-1.0-LTS 1930/1930] drivers/video/fbdev/core/sysfillrect.c:291:51: sparse: sparse: cast removes address space '<asn:2>' of expression
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: ef0390f1259df6b9ca86aa41a598fd07c29ba602 commit: 7389066b79d5dc829e15de2509e43a66bf24e296 [1930/1930] fbdev: Fix out-of-bounds issue in sys_fillrect() config: arm64-randconfig-r134-20251105 (https://download.01.org/0day-ci/archive/20251105/202511051110.kqecU8nf-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051110.kqecU8nf-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/202511051110.kqecU8nf-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/video/fbdev/core/sysfillrect.c:291:51: sparse: sparse: cast removes address space '<asn:2>' of expression drivers/video/fbdev/core/sysfillrect.c:329:32: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned long word @@ got restricted __le64 [usertype] @@ drivers/video/fbdev/core/sysfillrect.c:329:32: sparse: expected unsigned long word drivers/video/fbdev/core/sysfillrect.c:329:32: sparse: got restricted __le64 [usertype] drivers/video/fbdev/core/sysfillrect.c:329:32: sparse: sparse: cast to restricted __le64 vim +291 drivers/video/fbdev/core/sysfillrect.c 242 243 void sys_fillrect(struct fb_info *p, const struct fb_fillrect *rect) 244 { 245 unsigned long pat, pat2, fg; 246 unsigned long width = rect->width, height = rect->height; 247 int bits = BITS_PER_LONG, bytes = bits >> 3; 248 u32 bpp = p->var.bits_per_pixel; 249 unsigned long *dst; 250 int dst_idx, left; 251 long dst_offset; 252 253 if (p->state != FBINFO_STATE_RUNNING) 254 return; 255 256 if (p->fix.visual == FB_VISUAL_TRUECOLOR || 257 p->fix.visual == FB_VISUAL_DIRECTCOLOR ) 258 fg = ((u32 *) (p->pseudo_palette))[rect->color]; 259 else 260 fg = rect->color; 261 262 pat = pixel_to_pat( bpp, fg); 263 264 dst = (unsigned long *)((unsigned long)p->screen_base & ~(bytes-1)); 265 dst_idx = ((unsigned long)p->screen_base & (bytes - 1))*8; 266 dst_idx += rect->dy*p->fix.line_length*8+rect->dx*bpp; 267 /* FIXME For now we support 1-32 bpp only */ 268 left = bits % bpp; 269 if (p->fbops->fb_sync) 270 p->fbops->fb_sync(p); 271 if (!left) { 272 void (*fill_op32)(struct fb_info *p, unsigned long *dst, 273 int dst_idx, unsigned long pat, unsigned n, 274 int bits) = NULL; 275 276 switch (rect->rop) { 277 case ROP_XOR: 278 fill_op32 = bitfill_aligned_rev; 279 break; 280 case ROP_COPY: 281 fill_op32 = bitfill_aligned; 282 break; 283 default: 284 printk( KERN_ERR "cfb_fillrect(): unknown rop, " 285 "defaulting to ROP_COPY\n"); 286 fill_op32 = bitfill_aligned; 287 break; 288 } 289 while (height--) { 290 dst += dst_idx >> (ffs(bits) - 1); > 291 dst_offset = (long)dst - (long)p->screen_base; 292 if (dst_offset < 0 || dst_offset >= p->fix.smem_len) { 293 pr_err("dst offset out of bound: dst_offset(%ld)", dst_offset); 294 return; 295 } 296 dst_idx &= (bits - 1); 297 fill_op32(p, dst, dst_idx, pat, width*bpp, bits); 298 dst_idx += p->fix.line_length*8; 299 } 300 } else { 301 int right, r; 302 void (*fill_op)(struct fb_info *p, unsigned long *dst, 303 int dst_idx, unsigned long pat, int left, 304 int right, unsigned n, int bits) = NULL; 305 #ifdef __LITTLE_ENDIAN 306 right = left; 307 left = bpp - right; 308 #else 309 right = bpp - left; 310 #endif 311 switch (rect->rop) { 312 case ROP_XOR: 313 fill_op = bitfill_unaligned_rev; 314 break; 315 case ROP_COPY: 316 fill_op = bitfill_unaligned; 317 break; 318 default: 319 printk(KERN_ERR "sys_fillrect(): unknown rop, " 320 "defaulting to ROP_COPY\n"); 321 fill_op = bitfill_unaligned; 322 break; 323 } 324 while (height--) { 325 dst += dst_idx / bits; 326 dst_idx &= (bits - 1); 327 r = dst_idx % bpp; 328 /* rotate pattern to the correct start position */ 329 pat2 = le_long_to_cpu(rolx(cpu_to_le_long(pat), r, bpp)); 330 fill_op(p, dst, dst_idx, pat2, left, right, 331 width*bpp, bits); 332 dst_idx += p->fix.line_length*8; 333 } 334 } 335 } 336 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3099/3099] mm/shmem.o: warning: objtool: .init.text: unexpected end of section
by kernel test robot 05 Nov '25

05 Nov '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: f1418110051edb8e47923b009bbd051f7c06ad1a commit: 8be4868c4f23d36ca7409bcd5492fb554933bb64 [3099/3099] mm: shmem: override mTHP shmem default with a kernel parameter config: loongarch-randconfig-002-20251104 (https://download.01.org/0day-ci/archive/20251105/202511051154.EI2nBnB9-lkp@…) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project d2625a438020ad35330cda29c3def102c1687b1b) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251105/202511051154.EI2nBnB9-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/202511051154.EI2nBnB9-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from mm/shmem.c:28: In file included from include/linux/ramfs.h:5: In file included from include/linux/fs_parser.h:11: In file included from include/linux/fs_context.h:14: In file included from include/linux/security.h:33: In file included from include/linux/mm.h:2253: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ mm/shmem.c:1654:24: warning: default initialization of an object of type 'struct vm_area_struct' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe] 1654 | struct vm_area_struct pvma; | ^ include/linux/mm_types.h:629:20: note: member 'vm_flags' declared 'const' here 629 | const vm_flags_t vm_flags; | ^ mm/shmem.c:1802:24: warning: default initialization of an object of type 'struct vm_area_struct' with const member leaves the object uninitialized [-Wdefault-const-init-field-unsafe] 1802 | struct vm_area_struct pvma; | ^ include/linux/mm_types.h:629:20: note: member 'vm_flags' declared 'const' here 629 | const vm_flags_t vm_flags; | ^ 3 warnings generated. mm/shmem.o: warning: objtool: shmem_enabled_store() falls through to next function thpsize_shmem_enabled_show() >> mm/shmem.o: warning: objtool: .init.text: unexpected end of section -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-1.0-LTS] net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb
by Fanhua Li 05 Nov '25

05 Nov '25

From: Alan Stern <stern(a)rowland.harvard.edu> stable inclusion from stable-v4.19.291 commit 53c250ea57cf03af41339234b9855ae284f9db91 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/ID0UAL CVE: CVE-2023-53548 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- commit 5e1627cb43ddf1b24b92eb26f8d958a3f5676ccb upstream. The syzbot fuzzer identified a problem in the usbnet driver: usb 1-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 754 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 Modules linked in: CPU: 0 PID: 754 Comm: kworker/0:2 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 Workqueue: mld mld_ifc_work RIP: 0010:usb_submit_urb+0xed6/0x1880 drivers/usb/core/urb.c:504 Code: 7c 24 18 e8 2c b4 5b fb 48 8b 7c 24 18 e8 42 07 f0 fe 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 a0 c9 fc 8a e8 5a 6f 23 fb <0f> 0b e9 58 f8 ff ff e8 fe b3 5b fb 48 81 c5 c0 05 00 00 e9 84 f7 RSP: 0018:ffffc9000463f568 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: ffff88801eb28000 RSI: ffffffff814c03b7 RDI: 0000000000000001 RBP: ffff8881443b7190 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000003 R13: ffff88802a77cb18 R14: 0000000000000003 R15: ffff888018262500 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556a99c15a18 CR3: 0000000028c71000 CR4: 0000000000350ef0 Call Trace: <TASK> usbnet_start_xmit+0xfe5/0x2190 drivers/net/usb/usbnet.c:1453 __netdev_start_xmit include/linux/netdevice.h:4918 [inline] netdev_start_xmit include/linux/netdevice.h:4932 [inline] xmit_one net/core/dev.c:3578 [inline] dev_hard_start_xmit+0x187/0x700 net/core/dev.c:3594 ... This bug is caused by the fact that usbnet trusts the bulk endpoint addresses its probe routine receives in the driver_info structure, and it does not check to see that these endpoints actually exist and have the expected type and directions. The fix is simply to add such a check. Reported-and-tested-by: syzbot+63ee658b9a100ffadbe2(a)syzkaller.appspotmail.com Closes: https://lore.kernel.org/linux-usb/000000000000a56e9105d0cec021@google.com/ Signed-off-by: Alan Stern <stern(a)rowland.harvard.edu> CC: Oliver Neukum <oneukum(a)suse.com> Link: https://lore.kernel.org/r/ea152b6d-44df-4f8a-95c6-4db51143dcc1@rowland.harv… Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Fanhua Li <lifanhua5(a)huawei.com> --- drivers/net/usb/usbnet.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 1316f5b0c0d7e..cb27b076e4710 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1762,6 +1762,10 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) } else if (!info->in || !info->out) status = usbnet_get_endpoints (dev, udev); else { + u8 ep_addrs[3] = { + info->in + USB_DIR_IN, info->out + USB_DIR_OUT, 0 + }; + dev->in = usb_rcvbulkpipe (xdev, info->in); dev->out = usb_sndbulkpipe (xdev, info->out); if (!(info->flags & FLAG_NO_SETINT)) @@ -1771,6 +1775,8 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod) else status = 0; + if (status == 0 && !usb_check_bulk_endpoints(udev, ep_addrs)) + status = -EINVAL; } if (status >= 0 && dev->status) status = init_status (dev, udev); -- 2.43.0

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