May 2025 - Kernel - mailweb.openeuler.org

[PATCH openEuler-1.0-LTS] ipvs: fix WARNING in __ip_vs_cleanup_batch()
by Zhang Changzhong 28 May '25

28 May '25

From: Zhengchao Shao <shaozhengchao(a)huawei.com> stable inclusion from stable-v4.19.265 commit f08ee2aa24c076f81d84e26e213d8c6f4efd9f50 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC5BS4 CVE: CVE-2022-49918 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 3d00c6a0da8ddcf75213e004765e4a42acc71d5d ] During the initialization of ip_vs_conn_net_init(), if file ip_vs_conn or ip_vs_conn_sync fails to be created, the initialization is successful by default. Therefore, the ip_vs_conn or ip_vs_conn_sync file doesn't be found during the remove. The following is the stack information: name 'ip_vs_conn_sync' WARNING: CPU: 3 PID: 9 at fs/proc/generic.c:712 remove_proc_entry+0x389/0x460 Modules linked in: Workqueue: netns cleanup_net RIP: 0010:remove_proc_entry+0x389/0x460 Call Trace: <TASK> __ip_vs_cleanup_batch+0x7d/0x120 ops_exit_list+0x125/0x170 cleanup_net+0x4ea/0xb00 process_one_work+0x9bf/0x1710 worker_thread+0x665/0x1080 kthread+0x2e4/0x3a0 ret_from_fork+0x1f/0x30 </TASK> Fixes: 61b1ab4583e2 ("IPVS: netns, add basic init per netns.") Signed-off-by: Zhengchao Shao <shaozhengchao(a)huawei.com> Acked-by: Julian Anastasov <ja(a)ssi.bg> Signed-off-by: Pablo Neira Ayuso <pablo(a)netfilter.org> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Conflicts: net/netfilter/ipvs/ip_vs_conn.c [Adjust context] Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- net/netfilter/ipvs/ip_vs_conn.c | 26 +++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-) diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index 5b2b178..ec5128bed 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -1378,20 +1378,36 @@ int __net_init ip_vs_conn_net_init(struct netns_ipvs *ipvs) { atomic_set(&ipvs->conn_count, 0); - proc_create_net("ip_vs_conn", 0, ipvs->net->proc_net, - &ip_vs_conn_seq_ops, sizeof(struct ip_vs_iter_state)); - proc_create_net("ip_vs_conn_sync", 0, ipvs->net->proc_net, - &ip_vs_conn_sync_seq_ops, - sizeof(struct ip_vs_iter_state)); +#ifdef CONFIG_PROC_FS + if (!proc_create_net("ip_vs_conn", 0, ipvs->net->proc_net, + &ip_vs_conn_seq_ops, + sizeof(struct ip_vs_iter_state))) + goto err_conn; + + if (!proc_create_net("ip_vs_conn_sync", 0, ipvs->net->proc_net, + &ip_vs_conn_sync_seq_ops, + sizeof(struct ip_vs_iter_state))) + goto err_conn_sync; +#endif + return 0; + +#ifdef CONFIG_PROC_FS +err_conn_sync: + remove_proc_entry("ip_vs_conn", ipvs->net->proc_net); +err_conn: + return -ENOMEM; +#endif } void __net_exit ip_vs_conn_net_cleanup(struct netns_ipvs *ipvs) { /* flush all the connection entries first */ ip_vs_conn_flush(ipvs); +#ifdef CONFIG_PROC_FS remove_proc_entry("ip_vs_conn", ipvs->net->proc_net); remove_proc_entry("ip_vs_conn_sync", ipvs->net->proc_net); +#endif } int __init ip_vs_conn_init(void) -- 2.9.5

2 1

[PATCH openEuler-1.0-LTS] net: sched: Fix use after free in red_enqueue()
by Zhang Changzhong 28 May '25

28 May '25

From: Dan Carpenter <dan.carpenter(a)oracle.com> stable inclusion from stable-v4.19.265 commit e877f8fa49fbccc63cb2df2e9179bddc695b825a category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/IC5BSK CVE: CVE-2022-49921 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… -------------------------------- [ Upstream commit 8bdc2acd420c6f3dd1f1c78750ec989f02a1e2b9 ] We can't use "skb" again after passing it to qdisc_enqueue(). This is basically identical to commit 2f09707d0c97 ("sch_sfb: Also store skb len before calling child enqueue"). Fixes: d7f4f332f082 ("sch_red: update backlog as well") Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> Reviewed-by: Eric Dumazet <edumazet(a)google.com> Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Sasha Levin <sashal(a)kernel.org> Signed-off-by: Zhang Changzhong <zhangchangzhong(a)huawei.com> --- net/sched/sch_red.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/sched/sch_red.c b/net/sched/sch_red.c index a3dc211..302d11c 100644 --- a/net/sched/sch_red.c +++ b/net/sched/sch_red.c @@ -63,6 +63,7 @@ static int red_enqueue(struct sk_buff *skb, struct Qdisc *sch, { struct red_sched_data *q = qdisc_priv(sch); struct Qdisc *child = q->qdisc; + unsigned int len; int ret; q->vars.qavg = red_calc_qavg(&q->parms, @@ -98,9 +99,10 @@ static int red_enqueue(struct sk_buff *skb, struct Qdisc *sch, break; } + len = qdisc_pkt_len(skb); ret = qdisc_enqueue(skb, child, to_free); if (likely(ret == NET_XMIT_SUCCESS)) { - qdisc_qstats_backlog_inc(sch, skb); + sch->qstats.backlog += len; sch->q.qlen++; } else if (net_xmit_drop_count(ret)) { q->stats.pdrop++; -- 2.9.5

2 1

[openeuler:OLK-6.6 2320/2320] kernel/cgroup/cpuset.c:5231:26: warning: no previous prototype for 'bpf_cpumask_weight'
by kernel test robot 28 May '25

28 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9a55d4a78730623072ee5a82518e7c094296b8b6 commit: cb2b3e306ed2549685a2456e484abc8c30618411 [2320/2320] bpf: Add bpf_cpumask_weight() kfunc config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20250528/202505281622.nxl9aDmY-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250528/202505281622.nxl9aDmY-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/202505281622.nxl9aDmY-lkp@intel.com/ All warnings (new ones prefixed by >>): kernel/cgroup/cpuset.c:5224:28: warning: no previous prototype for 'bpf_cpuset_from_task' [-Wmissing-prototypes] 5224 | __bpf_kfunc struct cpuset *bpf_cpuset_from_task(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~ >> kernel/cgroup/cpuset.c:5231:26: warning: no previous prototype for 'bpf_cpumask_weight' [-Wmissing-prototypes] 5231 | __bpf_kfunc unsigned int bpf_cpumask_weight(struct cpumask *pmask) | ^~~~~~~~~~~~~~~~~~ vim +/bpf_cpumask_weight +5231 kernel/cgroup/cpuset.c 5230 > 5231 __bpf_kfunc unsigned int bpf_cpumask_weight(struct cpumask *pmask) 5232 { 5233 return cpumask_weight(pmask); 5234 } 5235 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 2318/2318] drivers/irqchip/irq-gic-v3-its.c:392:15: warning: no previous prototype for 'gic_data_rdist_get_vlpi_base'
by kernel test robot 28 May '25

28 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9a55d4a78730623072ee5a82518e7c094296b8b6 commit: 8207b85ea72073cc2f75884bfad29b41d805ef24 [2318/2318] kvm: hisi: print error for IPIV config: arm64-randconfig-001-20250528 (https://download.01.org/0day-ci/archive/20250528/202505281611.rYwqwDFF-lkp@…) compiler: aarch64-linux-gcc (GCC) 9.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250528/202505281611.rYwqwDFF-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/202505281611.rYwqwDFF-lkp@intel.com/ All warnings (new ones prefixed by >>): >> drivers/irqchip/irq-gic-v3-its.c:392:15: warning: no previous prototype for 'gic_data_rdist_get_vlpi_base' [-Wmissing-prototypes] 392 | void __iomem *gic_data_rdist_get_vlpi_base(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for HALTPOLL_CPUIDLE Depends on [n]: CPU_IDLE [=n] && ARCH_CPUIDLE_HALTPOLL [=y] && ARCH_HAS_OPTIMIZED_POLL [=y] Selected by [y]: - ARM64 [=y] vim +/gic_data_rdist_get_vlpi_base +392 drivers/irqchip/irq-gic-v3-its.c 390 391 #ifdef CONFIG_ARM64_HISI_IPIV > 392 void __iomem *gic_data_rdist_get_vlpi_base(void) 393 { 394 return gic_data_rdist_vlpi_base(); 395 } 396 EXPORT_SYMBOL(gic_data_rdist_get_vlpi_base); 397 #endif 398 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-6.6 v5 0/5] Support soft domain
by Zhang Qiao 28 May '25

28 May '25

v5: - Fix build error on ppc/x86/arm v4: - Fix memleak issue v3: - Fix x86 build error v2: - fix __SCHED_FEAT_SOFT_DOMAIN build error Zhang Qiao (5): sched: topology: Build soft domain for LLC sched: Attach task group to soft domain sched: fair: Select idle cpu in soft domain sched: fair: Disable numa migrate for soft domian task arm64: Enable CONFIG_SCHED_SOFT_DOMAIN arch/arm64/configs/openeuler_defconfig | 2 + include/linux/sched/topology.h | 21 ++ init/Kconfig | 11 + kernel/sched/build_policy.c | 3 + kernel/sched/core.c | 72 ++++++ kernel/sched/fair.c | 91 +++++++ kernel/sched/features.h | 4 + kernel/sched/sched.h | 34 +++ kernel/sched/soft_domain.c | 334 +++++++++++++++++++++++++ 9 files changed, 572 insertions(+) create mode 100644 kernel/sched/soft_domain.c -- 2.18.0.huawei.25

2 6

[PATCH OLK-6.6 0/2]Support thp policy control per process
by Tong Tiangen 28 May '25

28 May '25

A tool and driver are added to control the thp policy per-process. Currently, only supports PMD size THP control. In the future, more functions can be supported based on this tool and driver. Nanyong Sun (2): mm: add thp process control interface module mm: tool: add task_thpctl to control thp per process include/uapi/linux/thp_ctl.h | 19 +++++ kernel/fork.c | 1 + mm/Kconfig | 7 ++ mm/Makefile | 1 + mm/thp_ctl.c | 157 ++++++++++++++++++++++++++++++++++ tools/mm/Makefile | 4 +- tools/mm/task_thpctl.c | 161 +++++++++++++++++++++++++++++++++++ 7 files changed, 348 insertions(+), 2 deletions(-) create mode 100644 include/uapi/linux/thp_ctl.h create mode 100644 mm/thp_ctl.c create mode 100644 tools/mm/task_thpctl.c -- 2.25.1

2 3

[openeuler:OLK-6.6 2320/2320] kernel/cgroup/cpuset.c:5211:28: warning: no previous prototype for 'bpf_cpuset_from_task'
by kernel test robot 28 May '25

28 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9a55d4a78730623072ee5a82518e7c094296b8b6 commit: 0999aa9df88739a011ba52243082a87402942223 [2320/2320] bpf: cpuset: Add bpf_cpuset_from_task() kfunc config: loongarch-allmodconfig (https://download.01.org/0day-ci/archive/20250528/202505281528.FWgbJLUK-lkp@…) compiler: loongarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250528/202505281528.FWgbJLUK-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/202505281528.FWgbJLUK-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/cgroup/cpuset.c:5211:28: warning: no previous prototype for 'bpf_cpuset_from_task' [-Wmissing-prototypes] 5211 | __bpf_kfunc struct cpuset *bpf_cpuset_from_task(struct task_struct *task) | ^~~~~~~~~~~~~~~~~~~~ vim +/bpf_cpuset_from_task +5211 kernel/cgroup/cpuset.c 5209 5210 #ifdef CONFIG_BPF_RVI > 5211 __bpf_kfunc struct cpuset *bpf_cpuset_from_task(struct task_struct *task) 5212 { 5213 if (!task) 5214 return NULL; 5215 return task_cs(task); 5216 } 5217 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH OLK-5.10 V1] sched/dynamic_affinity: fix preffered_cpu offline problem
by Cheng Yu 28 May '25

28 May '25

From: He Yujie <coka.heyujie(a)huawei.com> hulk inclusion category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IB42TC -------------------------------- After the preferred_cpu goes offline, the core selection of dynamic affinity does not check whether the preferred_cpu is valid. As a result, related dynamic affinity processes are concentrated on a shared_cpu. This patch resolves this problem to checks whether the preferred_cpu is valid and compares only the usage threshold of the valid preferred_cpu. Fixes: 2e1dfc02d115 ("sched: Adjust wakeup cpu range according CPU util dynamicly") Signed-off-by: He Yujie <coka.heyujie(a)huawei.com> Signed-off-by: Cheng Yu <serein.chengyu(a)huawei.com> --- kernel/sched/fair.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 5fc8d6a25b9a..437572c568ee 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8124,6 +8124,7 @@ static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, struct task_group *tg; long spare; int cpu, mode; + int nr_cpus_valid = 0; rcu_read_lock(); mode = dynamic_affinity_mode(p); @@ -8141,7 +8142,7 @@ static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, /* manual mode */ tg = task_group(p); - for_each_cpu(cpu, p->prefer_cpus) { + for_each_cpu_and(cpu, p->prefer_cpus, cpu_online_mask) { if (idlest_cpu && (available_idle_cpu(cpu) || sched_idle_cpu(cpu))) { *idlest_cpu = cpu; } else if (idlest_cpu) { @@ -8163,10 +8164,17 @@ static void set_task_select_cpus(struct task_struct *p, int *idlest_cpu, util_avg_sum += taskgroup_cpu_util(tg, cpu); tg_capacity += capacity_of(cpu); + nr_cpus_valid++; } rcu_read_unlock(); - if (tg_capacity > cpumask_weight(p->prefer_cpus) && + /* + * Follow cases should select cpus_ptr, checking by condition of + * tg_capacity > nr_cpus_valid: + * 1. all prefer_cpus offline; + * 2. all prefer_cpus has no cfs capaicity(tg_capacity = nr_cpus_valid * 1) + */ + if (tg_capacity > nr_cpus_valid && util_avg_sum * 100 <= tg_capacity * sysctl_sched_util_low_pct) { p->select_cpus = p->prefer_cpus; if (sd_flag & SD_BALANCE_WAKE) -- 2.25.1

2 1

[PATCH OLK-6.6 v5 0/5] Support soft domain
by Zhang Qiao 28 May '25

28 May '25

v5: - Fix build error on ppc/x86/arm v4: - Fix memleak issue v3: - Fix x86 build error v2: - fix __SCHED_FEAT_SOFT_DOMAIN build error Zhang Qiao (5): sched: topology: Build soft domain for LLC sched: Attach task group to soft domain sched: fair: Select idle cpu in soft domain sched: fair: Disable numa migrate for soft domian task arm64: Enable CONFIG_SCHED_SOFT_DOMAIN arch/arm64/configs/openeuler_defconfig | 2 + include/linux/sched/topology.h | 21 ++ init/Kconfig | 11 + kernel/sched/build_policy.c | 3 + kernel/sched/core.c | 72 ++++++ kernel/sched/fair.c | 91 +++++++ kernel/sched/features.h | 4 + kernel/sched/sched.h | 34 +++ kernel/sched/soft_domain.c | 334 +++++++++++++++++++++++++ 9 files changed, 572 insertions(+) create mode 100644 kernel/sched/soft_domain.c -- 2.18.0.huawei.25

2 6

[openeuler:OLK-6.6 2320/2320] arch/x86/kernel/cpu/proc.c:63:5: warning: no previous prototype for function 'show_cpuinfo'
by kernel test robot 28 May '25

28 May '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 9a55d4a78730623072ee5a82518e7c094296b8b6 commit: 9d3b0e8891b8b3450a7cd6d1367946a1c69e4eb9 [2320/2320] bpf: Add cpuinfo_x86 iterator target config: x86_64-buildonly-randconfig-002-20250528 (https://download.01.org/0day-ci/archive/20250528/202505281457.ZzTKocMO-lkp@…) compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247) rustc: rustc 1.73.0 (cc66ad468 2023-10-03) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250528/202505281457.ZzTKocMO-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/202505281457.ZzTKocMO-lkp@intel.com/ All warnings (new ones prefixed by >>): >> arch/x86/kernel/cpu/proc.c:63:5: warning: no previous prototype for function 'show_cpuinfo' [-Wmissing-prototypes] 63 | int show_cpuinfo(struct seq_file *m, void *v) | ^ arch/x86/kernel/cpu/proc.c:63:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 63 | int show_cpuinfo(struct seq_file *m, void *v) | ^ | static 1 warning generated. vim +/show_cpuinfo +63 arch/x86/kernel/cpu/proc.c 62 > 63 int show_cpuinfo(struct seq_file *m, void *v) 64 { 65 struct cpuinfo_x86 *c = v; 66 unsigned int cpu; 67 int i; 68 69 cpu = c->cpu_index; 70 seq_printf(m, "processor\t: %u\n" 71 "vendor_id\t: %s\n" 72 "cpu family\t: %d\n" 73 "model\t\t: %u\n" 74 "model name\t: %s\n", 75 cpu, 76 c->x86_vendor_id[0] ? c->x86_vendor_id : "unknown", 77 c->x86, 78 c->x86_model, 79 c->x86_model_id[0] ? c->x86_model_id : "unknown"); 80 81 if (c->x86_stepping || c->cpuid_level >= 0) 82 seq_printf(m, "stepping\t: %d\n", c->x86_stepping); 83 else 84 seq_puts(m, "stepping\t: unknown\n"); 85 if (c->microcode) 86 seq_printf(m, "microcode\t: 0x%x\n", c->microcode); 87 88 if (cpu_has(c, X86_FEATURE_TSC)) { 89 unsigned int freq = arch_freq_get_on_cpu(cpu); 90 91 seq_printf(m, "cpu MHz\t\t: %u.%03u\n", freq / 1000, (freq % 1000)); 92 } 93 94 /* Cache size */ 95 if (c->x86_cache_size) 96 seq_printf(m, "cache size\t: %u KB\n", c->x86_cache_size); 97 98 show_cpuinfo_core(m, c, cpu); 99 show_cpuinfo_misc(m, c); 100 101 seq_puts(m, "flags\t\t:"); 102 for (i = 0; i < 32*NCAPINTS; i++) 103 if (cpu_has(c, i) && x86_cap_flags[i] != NULL) { 104 if (c->x86_vendor == X86_VENDOR_HYGON) 105 seq_printf(m, " %s", i == X86_FEATURE_SEV ? "csv" : 106 (i == X86_FEATURE_SEV_ES ? "csv2" : 107 x86_cap_flags[i])); 108 else 109 seq_printf(m, " %s", x86_cap_flags[i]); 110 } 111 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0