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[openeuler:openEuler-1.0-LTS 2662/23703] arch/arm64/include/asm/irqflags.h:88:9: warning: 'flags' may be used uninitialized
by kernel test robot 11 Sep '24

11 Sep '24

Hi Geert, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: bf039567abd9303dc03746afaaf0854f41ed853b commit: 9dae7e237a64858407b7626260bad53aa13c9198 [2662/23703] serial: sh-sci: Fix locking in sci_submit_rx() config: arm64-randconfig-002-20240911 (https://download.01.org/0day-ci/archive/20240911/202409110303.bhVqMzMo-lkp@…) compiler: aarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240911/202409110303.bhVqMzMo-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/202409110303.bhVqMzMo-lkp@intel.com/ Note: it may well be a FALSE warning. FWIW you are at least aware of it now. http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings All warnings (new ones prefixed by >>): In file included from include/linux/irqflags.h:16, from include/linux/spinlock.h:54, from include/linux/rwsem.h:16, from include/linux/notifier.h:15, from include/linux/clk.h:17, from drivers/tty/serial/sh-sci.c:24: In function 'arch_local_irq_restore', inlined from '__raw_spin_unlock_irqrestore' at include/linux/spinlock_api_smp.h:160:2, inlined from 'spin_unlock_irqrestore' at include/linux/spinlock.h:384:2, inlined from 'sci_submit_rx' at drivers/tty/serial/sh-sci.c:1376:3: >> arch/arm64/include/asm/irqflags.h:88:9: warning: 'flags' may be used uninitialized [-Wmaybe-uninitialized] 88 | asm volatile( | ^~~ drivers/tty/serial/sh-sci.c: In function 'sci_submit_rx': drivers/tty/serial/sh-sci.c:1338:23: note: 'flags' was declared here 1338 | unsigned long flags; | ^~~~~ In file included from drivers/tty/serial/sh-sci.c:53: In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:940:7: include/linux/tty_flip.h:27:53: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 27 | *flag_buf_ptr(tb, tb->used) = flag; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ In file included from include/linux/serial_core.h:29, from include/linux/serial_sci.h:6, from drivers/tty/serial/sh-sci.c:46: include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:940:7: include/linux/tty_flip.h:28:47: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 28 | *char_buf_ptr(tb, tb->used++) = ch; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:950:7: include/linux/tty_flip.h:27:53: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 27 | *flag_buf_ptr(tb, tb->used) = flag; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:950:7: include/linux/tty_flip.h:28:47: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 28 | *char_buf_ptr(tb, tb->used++) = ch; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:960:7: include/linux/tty_flip.h:27:53: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 27 | *flag_buf_ptr(tb, tb->used) = flag; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_handle_errors' at drivers/tty/serial/sh-sci.c:960:7: include/linux/tty_flip.h:28:47: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 28 | *char_buf_ptr(tb, tb->used++) = ch; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ include/linux/tty.h: In function 'sci_handle_errors': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_receive_chars' at drivers/tty/serial/sh-sci.c:906:5: include/linux/tty_flip.h:27:53: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 27 | *flag_buf_ptr(tb, tb->used) = flag; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ include/linux/tty.h: In function 'sci_receive_chars': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_receive_chars' at drivers/tty/serial/sh-sci.c:906:5: include/linux/tty_flip.h:28:47: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 28 | *char_buf_ptr(tb, tb->used++) = ch; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ include/linux/tty.h: In function 'sci_receive_chars': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_receive_chars' at drivers/tty/serial/sh-sci.c:883:5: include/linux/tty_flip.h:27:53: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 27 | *flag_buf_ptr(tb, tb->used) = flag; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ include/linux/tty.h: In function 'sci_receive_chars': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ In function 'tty_insert_flip_char', inlined from 'sci_receive_chars' at drivers/tty/serial/sh-sci.c:883:5: include/linux/tty_flip.h:28:47: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=] 28 | *char_buf_ptr(tb, tb->used++) = ch; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ include/linux/tty.h: In function 'sci_receive_chars': include/linux/tty.h:69:23: note: destination object 'data' of size 0 69 | unsigned long data[0]; | ^~~~ vim +/flags +88 arch/arm64/include/asm/irqflags.h fb9bd7d6df81ddf Marc Zyngier 2012-03-05 82 fb9bd7d6df81ddf Marc Zyngier 2012-03-05 83 /* fb9bd7d6df81ddf Marc Zyngier 2012-03-05 84 * restore saved IRQ state fb9bd7d6df81ddf Marc Zyngier 2012-03-05 85 */ fb9bd7d6df81ddf Marc Zyngier 2012-03-05 86 static inline void arch_local_irq_restore(unsigned long flags) fb9bd7d6df81ddf Marc Zyngier 2012-03-05 87 { fb9bd7d6df81ddf Marc Zyngier 2012-03-05 @88 asm volatile( fb9bd7d6df81ddf Marc Zyngier 2012-03-05 89 "msr daif, %0 // arch_local_irq_restore" fb9bd7d6df81ddf Marc Zyngier 2012-03-05 90 : fb9bd7d6df81ddf Marc Zyngier 2012-03-05 91 : "r" (flags) fb9bd7d6df81ddf Marc Zyngier 2012-03-05 92 : "memory"); fb9bd7d6df81ddf Marc Zyngier 2012-03-05 93 } fb9bd7d6df81ddf Marc Zyngier 2012-03-05 94 :::::: The code at line 88 was first introduced by commit :::::: fb9bd7d6df81ddf1e7ab6648ac89ddbe0625b26b arm64: IRQ handling :::::: TO: Marc Zyngier <marc.zyngier(a)arm.com> :::::: CC: Catalin Marinas <catalin.marinas(a)arm.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-5.10 3775/30000] mm/page_alloc.c:3036:6: sparse: sparse: symbol '__drain_all_pages' was not declared. Should it be static?
by kernel test robot 11 Sep '24

11 Sep '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: cbfb00d89c3b9971c3f0732b4f34d4e674bff5d8 commit: e037ee4a8deaff7c579618c0aba1f066d6d14b11 [3775/30000] mm, page_alloc: disable pcplists during memory offline config: x86_64-randconfig-123-20240910 (https://download.01.org/0day-ci/archive/20240911/202409110302.AhDyE0gr-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/20240911/202409110302.AhDyE0gr-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/202409110302.AhDyE0gr-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> mm/page_alloc.c:3036:6: sparse: sparse: symbol '__drain_all_pages' was not declared. Should it be static? >> mm/page_alloc.c:6634:6: sparse: sparse: symbol '__zone_set_pageset_high_and_batch' was not declared. Should it be static? mm/page_alloc.c: note: in included file (through include/linux/mm.h): include/linux/gfp.h:327:27: sparse: sparse: restricted gfp_t degrades to integer include/linux/gfp.h:327:27: sparse: sparse: restricted gfp_t degrades to integer vim +/__drain_all_pages +3036 mm/page_alloc.c 3025 3026 /* 3027 * The implementation of drain_all_pages(), exposing an extra parameter to 3028 * drain on all cpus. 3029 * 3030 * drain_all_pages() is optimized to only execute on cpus where pcplists are 3031 * not empty. The check for non-emptiness can however race with a free to 3032 * pcplist that has not yet increased the pcp->count from 0 to 1. Callers 3033 * that need the guarantee that every CPU has drained can disable the 3034 * optimizing racy check. 3035 */ > 3036 void __drain_all_pages(struct zone *zone, bool force_all_cpus) 3037 { 3038 int cpu; 3039 3040 /* 3041 * Allocate in the BSS so we wont require allocation in 3042 * direct reclaim path for CONFIG_CPUMASK_OFFSTACK=y 3043 */ 3044 static cpumask_t cpus_with_pcps; 3045 3046 /* 3047 * Make sure nobody triggers this path before mm_percpu_wq is fully 3048 * initialized. 3049 */ 3050 if (WARN_ON_ONCE(!mm_percpu_wq)) 3051 return; 3052 3053 /* 3054 * Do not drain if one is already in progress unless it's specific to 3055 * a zone. Such callers are primarily CMA and memory hotplug and need 3056 * the drain to be complete when the call returns. 3057 */ 3058 if (unlikely(!mutex_trylock(&pcpu_drain_mutex))) { 3059 if (!zone) 3060 return; 3061 mutex_lock(&pcpu_drain_mutex); 3062 } 3063 3064 /* 3065 * We don't care about racing with CPU hotplug event 3066 * as offline notification will cause the notified 3067 * cpu to drain that CPU pcps and on_each_cpu_mask 3068 * disables preemption as part of its processing 3069 */ 3070 for_each_online_cpu(cpu) { 3071 struct per_cpu_pageset *pcp; 3072 struct zone *z; 3073 bool has_pcps = false; 3074 3075 if (force_all_cpus) { 3076 /* 3077 * The pcp.count check is racy, some callers need a 3078 * guarantee that no cpu is missed. 3079 */ 3080 has_pcps = true; 3081 } else if (zone) { 3082 pcp = per_cpu_ptr(zone->pageset, cpu); 3083 if (pcp->pcp.count) 3084 has_pcps = true; 3085 } else { 3086 for_each_populated_zone(z) { 3087 pcp = per_cpu_ptr(z->pageset, cpu); 3088 if (pcp->pcp.count) { 3089 has_pcps = true; 3090 break; 3091 } 3092 } 3093 } 3094 3095 if (has_pcps) 3096 cpumask_set_cpu(cpu, &cpus_with_pcps); 3097 else 3098 cpumask_clear_cpu(cpu, &cpus_with_pcps); 3099 } 3100 3101 for_each_cpu(cpu, &cpus_with_pcps) { 3102 struct pcpu_drain *drain = per_cpu_ptr(&pcpu_drain, cpu); 3103 3104 drain->zone = zone; 3105 INIT_WORK(&drain->work, drain_local_pages_wq); 3106 queue_work_on(cpu, mm_percpu_wq, &drain->work); 3107 } 3108 for_each_cpu(cpu, &cpus_with_pcps) 3109 flush_work(&per_cpu_ptr(&pcpu_drain, cpu)->work); 3110 3111 mutex_unlock(&pcpu_drain_mutex); 3112 } 3113 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-5.10 5704/30000] include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces):
by kernel test robot 10 Sep '24

10 Sep '24

tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: cbfb00d89c3b9971c3f0732b4f34d4e674bff5d8 commit: 8a6bee347626968d467aef07453c4547bc23cb64 [5704/30000] blk-mq: fix potential uaf for 'queue_hw_ctx' config: x86_64-randconfig-122-20240910 (https://download.01.org/0day-ci/archive/20240910/202409102355.6lrxEzuT-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/20240910/202409102355.6lrxEzuT-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/202409102355.6lrxEzuT-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) block/blk-mq-sched.c: note: in included file: >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** -- >> block/blk-mq-sysfs.c:339:55: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct blk_mq_hw_ctx *hctx @@ got struct blk_mq_hw_ctx [noderef] __rcu * @@ block/blk-mq-sysfs.c:339:55: sparse: expected struct blk_mq_hw_ctx *hctx block/blk-mq-sysfs.c:339:55: sparse: got struct blk_mq_hw_ctx [noderef] __rcu * block/blk-mq-sysfs.c: note: in included file: >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** -- block/blk-sysfs.c: note: in included file: >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** -- block/blk-mq-tag.c: note: in included file: >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** -- >> block/blk-mq.c:485:19: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_mq_hw_ctx *hctx @@ got struct blk_mq_hw_ctx [noderef] __rcu * @@ block/blk-mq.c:485:19: sparse: expected struct blk_mq_hw_ctx *hctx block/blk-mq.c:485:19: sparse: got struct blk_mq_hw_ctx [noderef] __rcu * >> block/blk-mq.c:3270:41: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct blk_mq_hw_ctx **hctxs @@ got struct blk_mq_hw_ctx [noderef] __rcu **queue_hw_ctx @@ block/blk-mq.c:3270:41: sparse: expected struct blk_mq_hw_ctx **hctxs block/blk-mq.c:3270:41: sparse: got struct blk_mq_hw_ctx [noderef] __rcu **queue_hw_ctx >> block/blk-mq.c:3284:17: sparse: sparse: incompatible types in comparison expression (different address spaces): block/blk-mq.c:3284:17: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * block/blk-mq.c:3284:17: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** block/blk-mq.c:4033:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct blk_mq_hw_ctx *hctx @@ got struct blk_mq_hw_ctx [noderef] __rcu * @@ block/blk-mq.c: note: in included file: >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** >> include/linux/blk-mq.h:620:18: sparse: sparse: incompatible types in comparison expression (different address spaces): include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu *[noderef] __rcu * include/linux/blk-mq.h:620:18: sparse: struct blk_mq_hw_ctx [noderef] __rcu ** vim +620 include/linux/blk-mq.h 614 615 static inline struct blk_mq_hw_ctx *queue_hctx(struct request_queue *q, int id) 616 { 617 struct blk_mq_hw_ctx *hctx; 618 619 rcu_read_lock(); > 620 hctx = *(rcu_dereference(q->queue_hw_ctx) + id); 621 rcu_read_unlock(); 622 623 return hctx; 624 } 625 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH openEuler-22.03-LTS-SP1 0/3] Fix CVE-2022-48887
by Huang Xiaojia 10 Sep '24

10 Sep '24

*** BLURB HERE *** Huang Xiaojia (2): drm/vmwgfx: Introduce ttm reference object find function drm/vmwgfx: Remove vmw_user_bo_noref_release Zack Rusin (1): drm/vmwgfx: Remove rcu locks from user resources drivers/gpu/drm/drm_hashtab.c | 5 +- drivers/gpu/drm/vmwgfx/ttm_object.c | 55 +++---- drivers/gpu/drm/vmwgfx/ttm_object.h | 14 -- drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 42 ------ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 27 +--- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 176 +++++++++++------------ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 35 ----- include/drm/drm_hashtab.h | 2 + 8 files changed, 105 insertions(+), 251 deletions(-) -- 2.34.1

2 4

[PATCH OLK-5.10 0/3] Fix CVE-2022-48887
by Huang Xiaojia 10 Sep '24

10 Sep '24

*** BLURB HERE *** Huang Xiaojia (2): drm/vmwgfx: Introduce ttm reference object find function drm/vmwgfx: Remove vmw_user_bo_noref_release Zack Rusin (1): drm/vmwgfx: Remove rcu locks from user resources drivers/gpu/drm/drm_hashtab.c | 5 +- drivers/gpu/drm/vmwgfx/ttm_object.c | 55 +++---- drivers/gpu/drm/vmwgfx/ttm_object.h | 14 -- drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 42 ------ drivers/gpu/drm/vmwgfx/vmwgfx_drv.h | 27 +--- drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c | 176 +++++++++++------------ drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 35 ----- include/drm/drm_hashtab.h | 2 + 8 files changed, 105 insertions(+), 251 deletions(-) -- 2.34.1

2 4

[PATCH OLK-5.10] wifi: nl80211: don't free NULL coalescing rule
by Zhang Zekun 10 Sep '24

10 Sep '24

From: Johannes Berg <johannes.berg(a)intel.com> mainline inclusion from mainline-v6.9-rc6 commit 801ea33ae82d6a9d954074fbcf8ea9d18f1543a7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U96L CVE: CVE-2024-36941 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------- If the parsing fails, we can dereference a NULL pointer here. Cc: stable(a)vger.kernel.org Fixes: be29b99a9b51 ("cfg80211/nl80211: Add packet coalesce support") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit(a)intel.com> Link: https://msgid.link/20240418105220.b328f80406e7.Id75d961050deb05b3e4e354e024… Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- net/wireless/nl80211.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 674a0d54aff8..43dfc2fbcf35 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12646,6 +12646,8 @@ static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) error: for (i = 0; i < new_coalesce.n_rules; i++) { tmp_rule = &new_coalesce.rules[i]; + if (!tmp_rule) + continue; for (j = 0; j < tmp_rule->n_patterns; j++) kfree(tmp_rule->patterns[j].mask); kfree(tmp_rule->patterns); -- 2.17.1

2 1

[PATCH OLK-5.10] bna: ensure the copied buf is NUL terminated
by Zhang Zekun 10 Sep '24

10 Sep '24

From: Bui Quang Minh <minhquangbui99(a)gmail.com> mainline inclusion from mainline-v6.9-rc7 commit 8c34096c7fdf272fd4c0c37fe411cd2e3ed0ee9f category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U1KE CVE: CVE-2024-36934 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ----------------------------------------------------------- Currently, we allocate a nbytes-sized kernel buffer and copy nbytes from userspace to that buffer. Later, we use sscanf on this buffer but we don't ensure that the string is terminated inside the buffer, this can lead to OOB read when using sscanf. Fix this issue by using memdup_user_nul instead of memdup_user. Fixes: 7afc5dbde091 ("bna: Add debugfs interface.") Signed-off-by: Bui Quang Minh <minhquangbui99(a)gmail.com> Link: https://lore.kernel.org/r/20240424-fix-oob-read-v2-2-f1f1b53a10f4@gmail.com Signed-off-by: Jakub Kicinski <kuba(a)kernel.org> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/net/ethernet/brocade/bna/bnad_debugfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c index 04ad0f2b9677..777f0d7e4819 100644 --- a/drivers/net/ethernet/brocade/bna/bnad_debugfs.c +++ b/drivers/net/ethernet/brocade/bna/bnad_debugfs.c @@ -312,7 +312,7 @@ bnad_debugfs_write_regrd(struct file *file, const char __user *buf, void *kern_buf; /* Copy the user space buf */ - kern_buf = memdup_user(buf, nbytes); + kern_buf = memdup_user_nul(buf, nbytes); if (IS_ERR(kern_buf)) return PTR_ERR(kern_buf); @@ -372,7 +372,7 @@ bnad_debugfs_write_regwr(struct file *file, const char __user *buf, void *kern_buf; /* Copy the user space buf */ - kern_buf = memdup_user(buf, nbytes); + kern_buf = memdup_user_nul(buf, nbytes); if (IS_ERR(kern_buf)) return PTR_ERR(kern_buf); -- 2.17.1

2 1

[PATCH openEuler-22.03-LTS-SP1] net: USB: Fix wrong-direction WARNING in plusb.c
by Zhang Zekun 10 Sep '24

10 Sep '24

From: Alan Stern <stern(a)rowland.harvard.edu> stable inclusion from stable-v5.10.168 commit 1be271c52bf3554edcb8d124d1f8c7f777ee5727 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9R4KG CVE: CVE-2023-52742 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id… ---------------------------------------------------- commit 811d581194f7412eda97acc03d17fc77824b561f upstream. The syzbot fuzzer detected a bug in the plusb network driver: A zero-length control-OUT transfer was treated as a read instead of a write. In modern kernels this error provokes a WARNING: usb 1-1: BOGUS control dir, pipe 80000280 doesn't match bRequestType c0 WARNING: CPU: 0 PID: 4645 at drivers/usb/core/urb.c:411 usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 Modules linked in: CPU: 1 PID: 4645 Comm: dhcpcd Not tainted 6.2.0-rc6-syzkaller-00050-g9f266ccaa2f5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 RIP: 0010:usb_submit_urb+0x14a7/0x1880 drivers/usb/core/urb.c:411 ... Call Trace: <TASK> usb_start_wait_urb+0x101/0x4b0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x320/0x4a0 drivers/usb/core/message.c:153 __usbnet_read_cmd+0xb9/0x390 drivers/net/usb/usbnet.c:2010 usbnet_read_cmd+0x96/0xf0 drivers/net/usb/usbnet.c:2068 pl_vendor_req drivers/net/usb/plusb.c:60 [inline] pl_set_QuickLink_features drivers/net/usb/plusb.c:75 [inline] pl_reset+0x2f/0xf0 drivers/net/usb/plusb.c:85 usbnet_open+0xcc/0x5d0 drivers/net/usb/usbnet.c:889 __dev_open+0x297/0x4d0 net/core/dev.c:1417 __dev_change_flags+0x587/0x750 net/core/dev.c:8530 dev_change_flags+0x97/0x170 net/core/dev.c:8602 devinet_ioctl+0x15a2/0x1d70 net/ipv4/devinet.c:1147 inet_ioctl+0x33f/0x380 net/ipv4/af_inet.c:979 sock_do_ioctl+0xcc/0x230 net/socket.c:1169 sock_ioctl+0x1f8/0x680 net/socket.c:1286 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd The fix is to call usbnet_write_cmd() instead of usbnet_read_cmd() and remove the USB_DIR_IN flag. Reported-and-tested-by: syzbot+2a0e7abd24f1eb90ce25(a)syzkaller.appspotmail.com Signed-off-by: Alan Stern <stern(a)rowland.harvard.edu> Fixes: 090ffa9d0e90 ("[PATCH] USB: usbnet (9/9) module for pl2301/2302 cables") CC: stable(a)vger.kernel.org Link: https://lore.kernel.org/r/00000000000052099f05f3b3e298@google.com/ Signed-off-by: David S. Miller <davem(a)davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- drivers/net/usb/plusb.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/usb/plusb.c b/drivers/net/usb/plusb.c index 17c9c63b8eeb..ce7862dac2b7 100644 --- a/drivers/net/usb/plusb.c +++ b/drivers/net/usb/plusb.c @@ -57,9 +57,7 @@ static inline int pl_vendor_req(struct usbnet *dev, u8 req, u8 val, u8 index) { - return usbnet_read_cmd(dev, req, - USB_DIR_IN | USB_TYPE_VENDOR | - USB_RECIP_DEVICE, + return usbnet_write_cmd(dev, req, USB_TYPE_VENDOR | USB_RECIP_DEVICE, val, index, NULL, 0); } -- 2.17.1

2 2

[PATCH] wifi: nl80211: don't free NULL coalescing rule
by Zhang Zekun 10 Sep '24

10 Sep '24

From: Johannes Berg <johannes.berg(a)intel.com> mainline inclusion from mainline-v6.9-rc6 commit 801ea33ae82d6a9d954074fbcf8ea9d18f1543a7 category: bugfix bugzilla: https://gitee.com/src-openeuler/kernel/issues/I9U96L CVE: CVE-2024-36941 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?… ---------------------------------------------------- If the parsing fails, we can dereference a NULL pointer here. Cc: stable(a)vger.kernel.org Fixes: be29b99a9b51 ("cfg80211/nl80211: Add packet coalesce support") Reviewed-by: Miriam Rachel Korenblit <miriam.rachel.korenblit(a)intel.com> Link: https://msgid.link/20240418105220.b328f80406e7.Id75d961050deb05b3e4e354e024… Signed-off-by: Johannes Berg <johannes.berg(a)intel.com> Signed-off-by: Zhang Zekun <zhangzekun11(a)huawei.com> --- net/wireless/nl80211.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 674a0d54aff8..43dfc2fbcf35 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -12646,6 +12646,8 @@ static int nl80211_set_coalesce(struct sk_buff *skb, struct genl_info *info) error: for (i = 0; i < new_coalesce.n_rules; i++) { tmp_rule = &new_coalesce.rules[i]; + if (!tmp_rule) + continue; for (j = 0; j < tmp_rule->n_patterns; j++) kfree(tmp_rule->patterns[j].mask); kfree(tmp_rule->patterns); -- 2.17.1

1 0

[PATCH OLK-6.6 0/3] Bugfix introduced when support folio
by Liu Shixin 10 Sep '24

10 Sep '24

Liu Shixin (3): mm: limit order to 0 when allocated from dynamic pool mm: huge_memory: add memory reliable count in __discard_anon_folio_pmd_locked() mm/shmem: replace HPAGE_PMD_ORDER with PMD_ORDER in shmem_alloc_folio() mm/filemap.c | 3 +++ mm/huge_memory.c | 1 + mm/memory.c | 2 ++ mm/readahead.c | 3 +++ mm/shmem.c | 2 +- 5 files changed, 10 insertions(+), 1 deletion(-) -- 2.34.1

2 4