[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.115' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 130.976600][ T8219] kernel profiling enabled (shift: 7) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 139.947024][ C0] ===================================================== [ 139.954017][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbd1/0x12f0 [ 139.961031][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Not tainted 5.12.0-rc6-syzkaller #0 [ 139.969498][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 139.979717][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 139.985742][ C0] Call Trace: [ 139.989042][ C0] [ 139.991908][ C0] dump_stack+0x24c/0x2e0 executing program executing program executing program executing program [ 139.996359][ C0] kmsan_report+0xfb/0x1e0 [ 140.000810][ C0] __msan_warning+0x5c/0xa0 [ 140.005362][ C0] profile_hits+0xbd1/0x12f0 [ 140.010149][ C0] profile_tick+0x215/0x220 [ 140.014855][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 140.020910][ C0] tick_sched_timer+0x472/0x5b0 [ 140.025891][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 140.031477][ C0] __run_hrtimer+0x48b/0xd20 [ 140.036115][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 140.041183][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 140.046437][ C0] ? hrtimer_init+0x570/0x570 [ 140.051151][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 140.057082][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 140.063141][ C0] [ 140.066090][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 140.072096][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program executing program [ 140.078562][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 140.099345][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 140.105446][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 140.113558][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 140.121669][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 140.129744][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 140.137893][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 executing program executing program executing program executing program [ 140.145911][ C0] __test_set_page_writeback+0xe32/0x1040 [ 140.151703][ C0] ext4_bio_write_page+0x31f/0x3040 [ 140.157181][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 140.163044][ C0] ext4_writepages+0x3401/0x6870 [ 140.168105][ C0] ? __brelse+0x8b/0x110 [ 140.172420][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 140.177223][ C0] do_writepages+0x15f/0x420 [ 140.181936][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.187277][ C0] __writeback_single_inode+0x149/0xca0 [ 140.192879][ C0] writeback_sb_inodes+0x1567/0x3690 executing program executing program executing program executing program executing program [ 140.198236][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.204380][ C0] ? trylock_super+0x237/0x240 [ 140.209262][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 140.214595][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.220981][ C0] ? queue_io+0x63a/0x990 [ 140.225379][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.230704][ C0] wb_writeback+0x7d1/0x1120 [ 140.235343][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 140.241448][ C0] wb_do_writeback+0x10bf/0x1450 executing program executing program executing program executing program [ 140.246437][ C0] wb_workfn+0x214/0xab0 [ 140.250715][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.256109][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.261966][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.268210][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.273448][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 140.279216][ C0] process_one_work+0x1219/0x1fe0 [ 140.284291][ C0] worker_thread+0x10ec/0x2340 [ 140.289122][ C0] kthread+0x521/0x560 [ 140.293510][ C0] ? process_one_work+0x1fe0/0x1fe0 executing program executing program executing program executing program executing program [ 140.298743][ C0] ? kthread_blkcg+0x110/0x110 [ 140.303541][ C0] ret_from_fork+0x1f/0x30 [ 140.308088][ C0] [ 140.310423][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 140.317881][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 140.323266][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 140.328592][ C0] ===================================================== [ 140.335562][ C0] Disabling lock debugging due to kernel taint [ 140.341727][ C0] ===================================================== executing program executing program executing program executing program [ 140.348835][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbde/0x12f0 [ 140.355999][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 140.365762][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 140.375825][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 140.381954][ C0] Call Trace: [ 140.385261][ C0] [ 140.388129][ C0] dump_stack+0x24c/0x2e0 [ 140.392471][ C0] kmsan_report+0xfb/0x1e0 executing program executing program executing program executing program executing program [ 140.396976][ C0] __msan_warning+0x5c/0xa0 [ 140.401515][ C0] profile_hits+0xbde/0x12f0 [ 140.406155][ C0] profile_tick+0x215/0x220 [ 140.410838][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 140.416813][ C0] tick_sched_timer+0x472/0x5b0 [ 140.421717][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 140.427361][ C0] __run_hrtimer+0x48b/0xd20 [ 140.432005][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 140.437078][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.442323][ C0] ? hrtimer_init+0x570/0x570 executing program executing program executing program executing program [ 140.447049][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 140.452981][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 140.458762][ C0] [ 140.461721][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 140.467738][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 140.474361][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 executing program executing program executing program executing program executing program [ 140.494008][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 140.500106][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 140.508111][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 140.516253][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 140.524247][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 140.532226][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 140.540409][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program [ 140.546272][ C0] ext4_bio_write_page+0x31f/0x3040 [ 140.552919][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 140.558622][ C0] ext4_writepages+0x3401/0x6870 [ 140.563625][ C0] ? __brelse+0x8b/0x110 [ 140.567995][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 140.572884][ C0] do_writepages+0x15f/0x420 [ 140.577558][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.582790][ C0] __writeback_single_inode+0x149/0xca0 [ 140.588643][ C0] writeback_sb_inodes+0x1567/0x3690 [ 140.593996][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program [ 140.600202][ C0] ? trylock_super+0x237/0x240 [ 140.605289][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 140.610710][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.616957][ C0] ? queue_io+0x63a/0x990 [ 140.621348][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.626586][ C0] wb_writeback+0x7d1/0x1120 [ 140.631196][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 140.637557][ C0] wb_do_writeback+0x10bf/0x1450 [ 140.642521][ C0] wb_workfn+0x214/0xab0 executing program executing program executing program executing program executing program [ 140.646921][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.652323][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 140.658341][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.664448][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.669899][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 140.675804][ C0] process_one_work+0x1219/0x1fe0 [ 140.680881][ C0] worker_thread+0x10ec/0x2340 [ 140.685798][ C0] kthread+0x521/0x560 [ 140.689903][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 140.695151][ C0] ? kthread_blkcg+0x110/0x110 executing program executing program executing program executing program [ 140.700050][ C0] ret_from_fork+0x1f/0x30 [ 140.704520][ C0] [ 140.706859][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 140.714246][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 140.719586][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 140.724904][ C0] ===================================================== [ 140.732022][ C0] ===================================================== [ 140.739214][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbeb/0x12f0 executing program executing program executing program executing program executing program [ 140.746165][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 140.756040][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 140.766248][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 140.772278][ C0] Call Trace: [ 140.775844][ C0] [ 140.778711][ C0] dump_stack+0x24c/0x2e0 [ 140.783076][ C0] kmsan_report+0xfb/0x1e0 [ 140.787706][ C0] __msan_warning+0x5c/0xa0 [ 140.792240][ C0] profile_hits+0xbeb/0x12f0 [ 140.796874][ C0] profile_tick+0x215/0x220 executing program executing program executing program executing program [ 140.801414][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 140.807376][ C0] tick_sched_timer+0x472/0x5b0 [ 140.812276][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 140.817852][ C0] __run_hrtimer+0x48b/0xd20 [ 140.822474][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 140.827554][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.832800][ C0] ? hrtimer_init+0x570/0x570 [ 140.837538][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 140.843677][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 executing program executing program executing program executing program executing program [ 140.849362][ C0] [ 140.852322][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 140.858456][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 140.864925][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 140.884576][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 140.890677][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program [ 140.898681][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 140.906680][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 140.914694][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 140.922701][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 140.930792][ C0] __test_set_page_writeback+0xe32/0x1040 [ 140.936715][ C0] ext4_bio_write_page+0x31f/0x3040 [ 140.941952][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 executing program executing program executing program executing program executing program [ 140.947606][ C0] ext4_writepages+0x3401/0x6870 [ 140.952711][ C0] ? __brelse+0x8b/0x110 [ 140.956996][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 140.961802][ C0] do_writepages+0x15f/0x420 [ 140.966639][ C0] ? kmsan_get_metadata+0x116/0x180 [ 140.971894][ C0] __writeback_single_inode+0x149/0xca0 [ 140.977622][ C0] writeback_sb_inodes+0x1567/0x3690 [ 140.982961][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 140.989156][ C0] ? trylock_super+0x237/0x240 [ 140.994067][ C0] __writeback_inodes_wb+0x1d6/0x860 executing program executing program executing program executing program [ 140.999510][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.005641][ C0] ? queue_io+0x63a/0x990 [ 141.010007][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.015240][ C0] wb_writeback+0x7d1/0x1120 [ 141.019880][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.026064][ C0] wb_do_writeback+0x10bf/0x1450 [ 141.031203][ C0] wb_workfn+0x214/0xab0 [ 141.035488][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.040726][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 executing program executing program executing program executing program executing program [ 141.046818][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.052924][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.058164][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 141.063918][ C0] process_one_work+0x1219/0x1fe0 [ 141.069007][ C0] worker_thread+0x10ec/0x2340 [ 141.073913][ C0] kthread+0x521/0x560 [ 141.078019][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 141.083278][ C0] ? kthread_blkcg+0x110/0x110 [ 141.088164][ C0] ret_from_fork+0x1f/0x30 [ 141.092627][ C0] [ 141.094962][ C0] Local variable ----newes@ext4_es_insert_extent created at: executing program executing program executing program executing program [ 141.102367][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 141.107690][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 141.113013][ C0] ===================================================== [ 141.119951][ C0] ===================================================== [ 141.126879][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc0e/0x12f0 [ 141.134112][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 executing program executing program executing program executing program executing program [ 141.143966][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.154048][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 141.160058][ C0] Call Trace: [ 141.163364][ C0] [ 141.166413][ C0] dump_stack+0x24c/0x2e0 [ 141.170788][ C0] kmsan_report+0xfb/0x1e0 [ 141.175242][ C0] __msan_warning+0x5c/0xa0 [ 141.179872][ C0] profile_hits+0xc0e/0x12f0 [ 141.184500][ C0] profile_tick+0x215/0x220 [ 141.189034][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 141.194982][ C0] tick_sched_timer+0x472/0x5b0 executing program executing program executing program executing program [ 141.199874][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 141.205451][ C0] __run_hrtimer+0x48b/0xd20 [ 141.210080][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 141.215152][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.220390][ C0] ? hrtimer_init+0x570/0x570 [ 141.225123][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 141.231059][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 141.236817][ C0] [ 141.239779][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 141.245804][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program executing program [ 141.252241][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 141.272053][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 141.278176][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 141.286286][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 141.294405][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 executing program executing program executing program executing program [ 141.302407][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 141.310412][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 141.318424][ C0] __test_set_page_writeback+0xe32/0x1040 [ 141.324191][ C0] ext4_bio_write_page+0x31f/0x3040 [ 141.329411][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 141.335181][ C0] ext4_writepages+0x3401/0x6870 [ 141.340153][ C0] ? __brelse+0x8b/0x110 [ 141.344441][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 141.349243][ C0] do_writepages+0x15f/0x420 executing program executing program executing program executing program executing program [ 141.353870][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.359145][ C0] __writeback_single_inode+0x149/0xca0 [ 141.364738][ C0] writeback_sb_inodes+0x1567/0x3690 [ 141.370188][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.376298][ C0] ? trylock_super+0x237/0x240 [ 141.381099][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 141.386539][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.392802][ C0] ? queue_io+0x63a/0x990 [ 141.397209][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 141.402581][ C0] wb_writeback+0x7d1/0x1120 [ 141.407219][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 141.413318][ C0] wb_do_writeback+0x10bf/0x1450 [ 141.418276][ C0] wb_workfn+0x214/0xab0 [ 141.422560][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.427800][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 141.433648][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.439792][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.445035][ C0] ? inode_wait_for_writeback+0x320/0x320 executing program executing program executing program executing program [ 141.450797][ C0] process_one_work+0x1219/0x1fe0 [ 141.455885][ C0] worker_thread+0x10ec/0x2340 [ 141.460703][ C0] kthread+0x521/0x560 [ 141.464816][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 141.470073][ C0] ? kthread_blkcg+0x110/0x110 [ 141.475009][ C0] ret_from_fork+0x1f/0x30 [ 141.479459][ C0] [ 141.481790][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 141.489151][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 141.494470][ C0] ext4_es_insert_extent+0xb7/0x6610 executing program executing program executing program executing program executing program [ 141.499797][ C0] ===================================================== [ 141.506954][ C0] ===================================================== [ 141.513907][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc1b/0x12f0 [ 141.520985][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 141.530745][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.540839][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 141.546950][ C0] Call Trace: [ 141.550259][ C0] executing program executing program executing program executing program [ 141.553123][ C0] dump_stack+0x24c/0x2e0 [ 141.557489][ C0] kmsan_report+0xfb/0x1e0 [ 141.562296][ C0] __msan_warning+0x5c/0xa0 [ 141.566841][ C0] profile_hits+0xc1b/0x12f0 [ 141.571461][ C0] profile_tick+0x215/0x220 [ 141.575971][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 141.582005][ C0] tick_sched_timer+0x472/0x5b0 [ 141.586925][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 141.592515][ C0] __run_hrtimer+0x48b/0xd20 [ 141.597155][ C0] hrtimer_interrupt+0x6e2/0x1b50 executing program executing program executing program executing program executing program [ 141.602308][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.607698][ C0] ? hrtimer_init+0x570/0x570 [ 141.612510][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 141.618540][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 141.624224][ C0] [ 141.627187][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 141.633376][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 141.639837][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 141.659542][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 141.665743][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 141.673862][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 141.681863][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 141.689871][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 executing program executing program executing program executing program executing program [ 141.697877][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 141.705990][ C0] __test_set_page_writeback+0xe32/0x1040 [ 141.711885][ C0] ext4_bio_write_page+0x31f/0x3040 [ 141.717138][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 141.722820][ C0] ext4_writepages+0x3401/0x6870 [ 141.727819][ C0] ? __brelse+0x8b/0x110 [ 141.732108][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 141.736904][ C0] do_writepages+0x15f/0x420 [ 141.741655][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.746889][ C0] __writeback_single_inode+0x149/0xca0 executing program executing program executing program executing program [ 141.752475][ C0] writeback_sb_inodes+0x1567/0x3690 [ 141.758067][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.764358][ C0] ? trylock_super+0x237/0x240 [ 141.769174][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 141.774661][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.780747][ C0] ? queue_io+0x63a/0x990 [ 141.786691][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.791930][ C0] wb_writeback+0x7d1/0x1120 [ 141.796566][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 executing program executing program executing program executing program executing program [ 141.802799][ C0] wb_do_writeback+0x10bf/0x1450 [ 141.807815][ C0] wb_workfn+0x214/0xab0 [ 141.812270][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.817494][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 141.826506][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 141.832728][ C0] ? kmsan_get_metadata+0x116/0x180 [ 141.837980][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 141.843882][ C0] process_one_work+0x1219/0x1fe0 [ 141.849094][ C0] worker_thread+0x10ec/0x2340 executing program executing program executing program executing program [ 141.854116][ C0] kthread+0x521/0x560 [ 141.858402][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 141.863652][ C0] ? kthread_blkcg+0x110/0x110 [ 141.868464][ C0] ret_from_fork+0x1f/0x30 [ 141.872923][ C0] [ 141.875263][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 141.882744][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 141.888189][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 141.893549][ C0] ===================================================== executing program executing program executing program executing program executing program [ 141.900496][ C0] ===================================================== [ 141.907450][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc2b/0x12f0 [ 141.914471][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 141.924645][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 141.934967][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 141.940997][ C0] Call Trace: [ 141.944330][ C0] [ 141.947209][ C0] dump_stack+0x24c/0x2e0 [ 141.951661][ C0] kmsan_report+0xfb/0x1e0 executing program executing program executing program executing program [ 141.956126][ C0] __msan_warning+0x5c/0xa0 [ 141.960660][ C0] profile_hits+0xc2b/0x12f0 [ 141.965310][ C0] profile_tick+0x215/0x220 [ 141.969843][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 141.975780][ C0] tick_sched_timer+0x472/0x5b0 [ 141.980667][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 141.986253][ C0] __run_hrtimer+0x48b/0xd20 [ 141.990889][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 141.995971][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.001327][ C0] ? hrtimer_init+0x570/0x570 executing program executing program executing program executing program executing program [ 142.006371][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 142.012435][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 142.018118][ C0] [ 142.021069][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 142.027065][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 142.033544][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 executing program executing program executing program executing program [ 142.053396][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 142.059585][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 142.067606][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 142.075614][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 142.083816][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 142.091823][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 142.099915][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program [ 142.105819][ C0] ext4_bio_write_page+0x31f/0x3040 [ 142.111064][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 142.116876][ C0] ext4_writepages+0x3401/0x6870 [ 142.121879][ C0] ? __brelse+0x8b/0x110 [ 142.126167][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 142.130966][ C0] do_writepages+0x15f/0x420 [ 142.135595][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.141002][ C0] __writeback_single_inode+0x149/0xca0 [ 142.146603][ C0] writeback_sb_inodes+0x1567/0x3690 executing program executing program executing program executing program [ 142.151938][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.158037][ C0] ? trylock_super+0x237/0x240 [ 142.158091][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 142.158123][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.158150][ C0] ? queue_io+0x63a/0x990 [ 142.158174][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.158200][ C0] wb_writeback+0x7d1/0x1120 [ 142.158233][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 142.158261][ C0] wb_do_writeback+0x10bf/0x1450 [ 142.158293][ C0] wb_workfn+0x214/0xab0 executing program executing program executing program executing program executing program [ 142.158318][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.158343][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.158370][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.158403][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.158429][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 142.158459][ C0] process_one_work+0x1219/0x1fe0 [ 142.237257][ C0] worker_thread+0x10ec/0x2340 [ 142.242135][ C0] kthread+0x521/0x560 [ 142.246243][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 142.251474][ C0] ? kthread_blkcg+0x110/0x110 executing program executing program executing program executing program [ 142.256274][ C0] ret_from_fork+0x1f/0x30 [ 142.260732][ C0] [ 142.263069][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 142.270485][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 142.275812][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 142.281397][ C0] ===================================================== [ 142.288566][ C0] ===================================================== [ 142.295880][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc51/0x12f0 executing program executing program executing program executing program executing program [ 142.302832][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 142.312613][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 142.322945][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 142.328993][ C0] Call Trace: [ 142.332325][ C0] [ 142.335187][ C0] dump_stack+0x24c/0x2e0 [ 142.339552][ C0] kmsan_report+0xfb/0x1e0 [ 142.344003][ C0] __msan_warning+0x5c/0xa0 [ 142.348620][ C0] profile_hits+0xc51/0x12f0 executing program executing program executing program executing program [ 142.353345][ C0] profile_tick+0x215/0x220 [ 142.358671][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 142.364768][ C0] tick_sched_timer+0x472/0x5b0 [ 142.369674][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 142.375258][ C0] __run_hrtimer+0x48b/0xd20 [ 142.379898][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 142.384965][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.390301][ C0] ? hrtimer_init+0x570/0x570 [ 142.396692][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 142.402606][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 executing program executing program executing program executing program executing program [ 142.408282][ C0] [ 142.411217][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 142.417319][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 142.424053][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 142.443696][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 142.449799][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program [ 142.457913][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 142.466146][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 142.474151][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 142.482161][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 142.491761][ C0] __test_set_page_writeback+0xe32/0x1040 [ 142.497758][ C0] ext4_bio_write_page+0x31f/0x3040 [ 142.502988][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 executing program executing program executing program executing program executing program [ 142.508666][ C0] ext4_writepages+0x3401/0x6870 [ 142.513800][ C0] ? __brelse+0x8b/0x110 [ 142.518104][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 142.522958][ C0] do_writepages+0x15f/0x420 [ 142.527592][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.532829][ C0] __writeback_single_inode+0x149/0xca0 [ 142.538690][ C0] writeback_sb_inodes+0x1567/0x3690 [ 142.544162][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.550359][ C0] ? trylock_super+0x237/0x240 executing program executing program executing program executing program [ 142.555166][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 142.560504][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.566776][ C0] ? queue_io+0x63a/0x990 [ 142.571294][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.576535][ C0] wb_writeback+0x7d1/0x1120 [ 142.581146][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 142.587384][ C0] wb_do_writeback+0x10bf/0x1450 [ 142.592379][ C0] wb_workfn+0x214/0xab0 [ 142.597019][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.602338][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 executing program executing program executing program executing program executing program [ 142.608374][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.614478][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.619708][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 142.625499][ C0] process_one_work+0x1219/0x1fe0 [ 142.630658][ C0] worker_thread+0x10ec/0x2340 [ 142.635471][ C0] kthread+0x521/0x560 [ 142.639569][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 142.645420][ C0] ? kthread_blkcg+0x110/0x110 [ 142.650243][ C0] ret_from_fork+0x1f/0x30 [ 142.654719][ C0] executing program executing program executing program executing program [ 142.657058][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 142.664531][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 142.669878][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 142.675285][ C0] ===================================================== [ 142.682361][ C0] ===================================================== [ 142.689318][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc5e/0x12f0 [ 142.696305][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 executing program executing program executing program executing program executing program [ 142.706094][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 142.716187][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 142.722215][ C0] Call Trace: [ 142.727022][ C0] [ 142.729884][ C0] dump_stack+0x24c/0x2e0 [ 142.734244][ C0] kmsan_report+0xfb/0x1e0 [ 142.738679][ C0] __msan_warning+0x5c/0xa0 [ 142.743297][ C0] profile_hits+0xc5e/0x12f0 [ 142.748060][ C0] profile_tick+0x215/0x220 [ 142.752594][ C0] ? __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program [ 142.758666][ C0] tick_sched_timer+0x472/0x5b0 [ 142.763555][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 142.769289][ C0] __run_hrtimer+0x48b/0xd20 [ 142.773937][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 142.779413][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.784658][ C0] ? hrtimer_init+0x570/0x570 [ 142.789373][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 142.795311][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 142.800989][ C0] [ 142.804011][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 executing program executing program executing program executing program executing program [ 142.810022][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 142.816576][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 142.836407][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 142.842541][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 142.850552][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 executing program executing program executing program executing program [ 142.858552][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 142.866558][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 142.874722][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 142.882728][ C0] __test_set_page_writeback+0xe32/0x1040 [ 142.888495][ C0] ext4_bio_write_page+0x31f/0x3040 [ 142.893732][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 142.899499][ C0] ext4_writepages+0x3401/0x6870 [ 142.904491][ C0] ? __brelse+0x8b/0x110 executing program executing program executing program executing program executing program [ 142.908779][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 142.913575][ C0] do_writepages+0x15f/0x420 [ 142.918294][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.923719][ C0] __writeback_single_inode+0x149/0xca0 [ 142.929309][ C0] writeback_sb_inodes+0x1567/0x3690 [ 142.934644][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 142.940739][ C0] ? trylock_super+0x237/0x240 [ 142.945541][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 142.950979][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program [ 142.957081][ C0] ? queue_io+0x63a/0x990 [ 142.961456][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.966767][ C0] wb_writeback+0x7d1/0x1120 [ 142.971491][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 142.977687][ C0] wb_do_writeback+0x10bf/0x1450 [ 142.982648][ C0] wb_workfn+0x214/0xab0 [ 142.986930][ C0] ? kmsan_get_metadata+0x116/0x180 [ 142.992157][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 142.997988][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.004114][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program executing program [ 143.009351][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 143.015111][ C0] process_one_work+0x1219/0x1fe0 [ 143.020183][ C0] worker_thread+0x10ec/0x2340 [ 143.025083][ C0] kthread+0x521/0x560 [ 143.029184][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 143.034412][ C0] ? kthread_blkcg+0x110/0x110 [ 143.039213][ C0] ret_from_fork+0x1f/0x30 [ 143.043661][ C0] [ 143.045981][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 143.053366][ C0] ext4_es_insert_extent+0xb7/0x6610 executing program executing program executing program executing program [ 143.058683][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 143.064001][ C0] ===================================================== [ 143.071066][ C0] ===================================================== [ 143.078014][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc6e/0x12f0 [ 143.085129][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 143.094874][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.105097][ C0] Workqueue: writeback wb_workfn (flush-8:0) executing program executing program executing program executing program executing program [ 143.111209][ C0] Call Trace: [ 143.114503][ C0] [ 143.117368][ C0] dump_stack+0x24c/0x2e0 [ 143.121725][ C0] kmsan_report+0xfb/0x1e0 [ 143.126182][ C0] __msan_warning+0x5c/0xa0 [ 143.130887][ C0] profile_hits+0xc6e/0x12f0 [ 143.135513][ C0] profile_tick+0x215/0x220 [ 143.140047][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 143.145978][ C0] tick_sched_timer+0x472/0x5b0 [ 143.150864][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 143.156590][ C0] __run_hrtimer+0x48b/0xd20 executing program executing program executing program executing program executing program [ 143.161224][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 143.166282][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.171526][ C0] ? hrtimer_init+0x570/0x570 [ 143.176348][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 143.182256][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 143.188021][ C0] [ 143.190971][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 143.196982][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 143.203440][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 143.223076][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 143.229167][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 143.237306][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 143.245316][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 143.253481][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 executing program executing program executing program executing program executing program [ 143.261487][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 143.269532][ C0] __test_set_page_writeback+0xe32/0x1040 [ 143.275337][ C0] ext4_bio_write_page+0x31f/0x3040 [ 143.280590][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 143.286263][ C0] ext4_writepages+0x3401/0x6870 [ 143.291261][ C0] ? __brelse+0x8b/0x110 [ 143.295550][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 143.300350][ C0] do_writepages+0x15f/0x420 [ 143.304983][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 143.310218][ C0] __writeback_single_inode+0x149/0xca0 [ 143.315807][ C0] writeback_sb_inodes+0x1567/0x3690 [ 143.321173][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.327280][ C0] ? trylock_super+0x237/0x240 [ 143.332084][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 143.337409][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.343818][ C0] ? queue_io+0x63a/0x990 [ 143.348200][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.353434][ C0] wb_writeback+0x7d1/0x1120 executing program executing program executing program executing program executing program [ 143.358078][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 143.364176][ C0] wb_do_writeback+0x10bf/0x1450 [ 143.369150][ C0] wb_workfn+0x214/0xab0 [ 143.373426][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.378827][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.384656][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.390881][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.396107][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 143.401865][ C0] process_one_work+0x1219/0x1fe0 [ 143.406942][ C0] worker_thread+0x10ec/0x2340 executing program executing program executing program executing program [ 143.411749][ C0] kthread+0x521/0x560 [ 143.415943][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 143.421264][ C0] ? kthread_blkcg+0x110/0x110 [ 143.426066][ C0] ret_from_fork+0x1f/0x30 [ 143.430517][ C0] [ 143.432854][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 143.440233][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 143.445646][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 143.450956][ C0] ===================================================== executing program executing program executing program executing program executing program [ 143.458103][ C0] ===================================================== [ 143.465274][ C0] BUG: KMSAN: uninit-value in profile_hits+0x1275/0x12f0 [ 143.472336][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 143.482127][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.492232][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 143.498256][ C0] Call Trace: [ 143.501554][ C0] [ 143.504412][ C0] dump_stack+0x24c/0x2e0 [ 143.508777][ C0] kmsan_report+0xfb/0x1e0 executing program executing program executing program executing program [ 143.513236][ C0] __msan_warning+0x5c/0xa0 [ 143.517812][ C0] profile_hits+0x1275/0x12f0 [ 143.522522][ C0] profile_tick+0x215/0x220 [ 143.527050][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 143.533066][ C0] tick_sched_timer+0x472/0x5b0 [ 143.537952][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 143.543537][ C0] __run_hrtimer+0x48b/0xd20 [ 143.548179][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 143.553425][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.558667][ C0] ? hrtimer_init+0x570/0x570 executing program executing program executing program executing program executing program [ 143.563380][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 143.569360][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 143.575215][ C0] [ 143.578151][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 143.584163][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 143.590734][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 executing program executing program executing program executing program [ 143.610448][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 143.616539][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 143.624664][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 143.632659][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 143.640844][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 143.648822][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 143.657050][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program executing program [ 143.662820][ C0] ext4_bio_write_page+0x31f/0x3040 [ 143.668111][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 143.673806][ C0] ext4_writepages+0x3401/0x6870 [ 143.678904][ C0] ? __brelse+0x8b/0x110 [ 143.683188][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 143.688277][ C0] do_writepages+0x15f/0x420 [ 143.692911][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.698398][ C0] __writeback_single_inode+0x149/0xca0 [ 143.704090][ C0] writeback_sb_inodes+0x1567/0x3690 executing program executing program executing program executing program [ 143.709530][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.715636][ C0] ? trylock_super+0x237/0x240 [ 143.720450][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 143.725781][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.731884][ C0] ? queue_io+0x63a/0x990 [ 143.736429][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.741753][ C0] wb_writeback+0x7d1/0x1120 [ 143.746578][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 143.752683][ C0] wb_do_writeback+0x10bf/0x1450 [ 143.757679][ C0] wb_workfn+0x214/0xab0 executing program executing program executing program executing program executing program [ 143.761966][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.767210][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 143.773055][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 143.779160][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.784405][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 143.790167][ C0] process_one_work+0x1219/0x1fe0 [ 143.795281][ C0] worker_thread+0x10ec/0x2340 [ 143.800108][ C0] kthread+0x521/0x560 [ 143.804207][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 143.809444][ C0] ? kthread_blkcg+0x110/0x110 executing program executing program executing program executing program [ 143.814281][ C0] ret_from_fork+0x1f/0x30 [ 143.818744][ C0] [ 143.821083][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 143.828467][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 143.833782][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 143.839102][ C0] ===================================================== [ 143.846099][ C0] ===================================================== [ 143.853049][ C0] BUG: KMSAN: uninit-value in profile_hits+0x1295/0x12f0 executing program executing program executing program executing program executing program [ 143.860212][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 143.869955][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 143.880139][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 143.886175][ C0] Call Trace: [ 143.889478][ C0] [ 143.892351][ C0] dump_stack+0x24c/0x2e0 [ 143.896748][ C0] kmsan_report+0xfb/0x1e0 [ 143.901196][ C0] __msan_warning+0x5c/0xa0 [ 143.905730][ C0] profile_hits+0x1295/0x12f0 [ 143.910444][ C0] profile_tick+0x215/0x220 executing program executing program executing program executing program [ 143.914974][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 143.920934][ C0] tick_sched_timer+0x472/0x5b0 [ 143.925828][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 143.931439][ C0] __run_hrtimer+0x48b/0xd20 [ 143.936078][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 143.941180][ C0] ? kmsan_get_metadata+0x116/0x180 [ 143.946563][ C0] ? hrtimer_init+0x570/0x570 [ 143.951289][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 143.957235][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 executing program executing program executing program executing program [ 143.962934][ C0] [ 143.965888][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 143.972518][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 143.978973][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 143.998844][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 144.004952][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program executing program [ 144.012952][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 144.020975][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 144.028978][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 144.037265][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 144.045282][ C0] __test_set_page_writeback+0xe32/0x1040 [ 144.051055][ C0] ext4_bio_write_page+0x31f/0x3040 [ 144.056340][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 executing program executing program executing program executing program [ 144.062018][ C0] ext4_writepages+0x3401/0x6870 [ 144.067029][ C0] ? __brelse+0x8b/0x110 [ 144.071622][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 144.076437][ C0] do_writepages+0x15f/0x420 [ 144.081074][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.086425][ C0] __writeback_single_inode+0x149/0xca0 [ 144.092021][ C0] writeback_sb_inodes+0x1567/0x3690 [ 144.097359][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.103622][ C0] ? trylock_super+0x237/0x240 [ 144.108408][ C0] __writeback_inodes_wb+0x1d6/0x860 executing program executing program executing program executing program executing program [ 144.113757][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.119868][ C0] ? queue_io+0x63a/0x990 [ 144.124355][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.129641][ C0] wb_writeback+0x7d1/0x1120 [ 144.134276][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 144.140867][ C0] wb_do_writeback+0x10bf/0x1450 [ 144.145852][ C0] wb_workfn+0x214/0xab0 [ 144.150130][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.155360][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 executing program executing program executing program executing program [ 144.161383][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.167578][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.172827][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 144.178598][ C0] process_one_work+0x1219/0x1fe0 [ 144.183750][ C0] worker_thread+0x10ec/0x2340 [ 144.188533][ C0] kthread+0x521/0x560 [ 144.192640][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 144.197912][ C0] ? kthread_blkcg+0x110/0x110 [ 144.202846][ C0] ret_from_fork+0x1f/0x30 [ 144.207390][ C0] executing program executing program executing program [ 144.209728][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 144.217188][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 144.222508][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 144.227915][ C0] ===================================================== [ 144.235274][ C0] ===================================================== [ 144.242529][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbd1/0x12f0 [ 144.249541][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 executing program [ 144.259454][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 144.269764][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 144.275787][ C0] Call Trace: [ 144.279079][ C0] [ 144.281931][ C0] dump_stack+0x24c/0x2e0 [ 144.286314][ C0] kmsan_report+0xfb/0x1e0 [ 144.290753][ C0] __msan_warning+0x5c/0xa0 [ 144.295298][ C0] profile_hits+0xbd1/0x12f0 [ 144.299919][ C0] profile_tick+0x215/0x220 [ 144.304468][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 144.310625][ C0] tick_sched_timer+0x472/0x5b0 [ 144.315536][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 144.321196][ C0] __run_hrtimer+0x48b/0xd20 [ 144.325852][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 144.330958][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.336253][ C0] ? hrtimer_init+0x570/0x570 [ 144.341020][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 144.347070][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 144.352806][ C0] [ 144.355897][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 144.361993][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 144.368622][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 144.388386][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 144.394487][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 144.402480][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 executing program [ 144.410476][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 144.418472][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 144.426472][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 144.434525][ C0] __test_set_page_writeback+0xe32/0x1040 [ 144.440286][ C0] ext4_bio_write_page+0x31f/0x3040 [ 144.445545][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 144.451235][ C0] ext4_writepages+0x3401/0x6870 [ 144.456270][ C0] ? __brelse+0x8b/0x110 [ 144.460589][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 144.465398][ C0] do_writepages+0x15f/0x420 [ 144.470019][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.475246][ C0] __writeback_single_inode+0x149/0xca0 [ 144.480870][ C0] writeback_sb_inodes+0x1567/0x3690 [ 144.486651][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.492807][ C0] ? trylock_super+0x237/0x240 [ 144.497600][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 144.502912][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.509011][ C0] ? queue_io+0x63a/0x990 executing program [ 144.513463][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.518697][ C0] wb_writeback+0x7d1/0x1120 [ 144.523336][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 144.529438][ C0] wb_do_writeback+0x10bf/0x1450 [ 144.534420][ C0] wb_workfn+0x214/0xab0 [ 144.538696][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.544162][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.550182][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.556279][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.561691][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 144.567529][ C0] process_one_work+0x1219/0x1fe0 [ 144.572694][ C0] worker_thread+0x10ec/0x2340 [ 144.577500][ C0] kthread+0x521/0x560 [ 144.581599][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 144.586831][ C0] ? kthread_blkcg+0x110/0x110 [ 144.591661][ C0] ret_from_fork+0x1f/0x30 [ 144.596108][ C0] [ 144.598436][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 144.606051][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 144.611534][ C0] ext4_es_insert_extent+0xb7/0x6610 executing program [ 144.616981][ C0] ===================================================== [ 144.623926][ C0] ===================================================== [ 144.630871][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbde/0x12f0 [ 144.637965][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 144.647874][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 144.658077][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 144.664141][ C0] Call Trace: [ 144.667438][ C0] [ 144.670289][ C0] dump_stack+0x24c/0x2e0 [ 144.674655][ C0] kmsan_report+0xfb/0x1e0 [ 144.679123][ C0] __msan_warning+0x5c/0xa0 [ 144.683651][ C0] profile_hits+0xbde/0x12f0 [ 144.688447][ C0] profile_tick+0x215/0x220 [ 144.693021][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 144.698949][ C0] tick_sched_timer+0x472/0x5b0 [ 144.704032][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 144.709621][ C0] __run_hrtimer+0x48b/0xd20 executing program [ 144.714257][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 144.719366][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.724597][ C0] ? hrtimer_init+0x570/0x570 [ 144.729420][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 144.735345][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 144.741026][ C0] [ 144.743971][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 144.749978][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 144.756437][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 144.776089][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 144.782272][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 144.790266][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 144.798258][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 144.806252][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 executing program [ 144.814246][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 144.822279][ C0] __test_set_page_writeback+0xe32/0x1040 [ 144.828044][ C0] ext4_bio_write_page+0x31f/0x3040 [ 144.833284][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 144.839016][ C0] ext4_writepages+0x3401/0x6870 [ 144.844032][ C0] ? __brelse+0x8b/0x110 [ 144.848308][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 144.853219][ C0] do_writepages+0x15f/0x420 [ 144.857842][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.863071][ C0] __writeback_single_inode+0x149/0xca0 executing program [ 144.868740][ C0] writeback_sb_inodes+0x1567/0x3690 [ 144.874066][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.880378][ C0] ? trylock_super+0x237/0x240 [ 144.885173][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 144.890516][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.896631][ C0] ? queue_io+0x63a/0x990 [ 144.900987][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.906210][ C0] wb_writeback+0x7d1/0x1120 [ 144.910835][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 144.916962][ C0] wb_do_writeback+0x10bf/0x1450 [ 144.921935][ C0] wb_workfn+0x214/0xab0 [ 144.926208][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.931432][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 144.937266][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 144.943366][ C0] ? kmsan_get_metadata+0x116/0x180 [ 144.948679][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 144.954526][ C0] process_one_work+0x1219/0x1fe0 [ 144.959639][ C0] worker_thread+0x10ec/0x2340 [ 144.964440][ C0] kthread+0x521/0x560 executing program [ 144.968537][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 144.973767][ C0] ? kthread_blkcg+0x110/0x110 [ 144.978579][ C0] ret_from_fork+0x1f/0x30 [ 144.983021][ C0] [ 144.985438][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 144.992982][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 144.998302][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 145.003707][ C0] ===================================================== [ 145.010731][ C0] ===================================================== executing program executing program executing program executing program [ 145.017674][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbeb/0x12f0 [ 145.024641][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 145.034649][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 145.045326][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 145.051369][ C0] Call Trace: [ 145.054668][ C0] [ 145.057647][ C0] dump_stack+0x24c/0x2e0 [ 145.062276][ C0] kmsan_report+0xfb/0x1e0 executing program executing program executing program executing program [ 145.066721][ C0] __msan_warning+0x5c/0xa0 [ 145.071249][ C0] profile_hits+0xbeb/0x12f0 [ 145.075979][ C0] profile_tick+0x215/0x220 [ 145.080515][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 145.086451][ C0] tick_sched_timer+0x472/0x5b0 [ 145.091431][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 145.097041][ C0] __run_hrtimer+0x48b/0xd20 [ 145.101675][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 145.106735][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.111989][ C0] ? hrtimer_init+0x570/0x570 executing program executing program executing program executing program executing program [ 145.116705][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 145.122632][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 145.128393][ C0] [ 145.131489][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 145.137586][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 145.144054][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 145.163693][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 executing program executing program executing program executing program [ 145.169796][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 145.177802][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 145.185814][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 145.193928][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 145.202047][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 145.210071][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program executing program [ 145.215926][ C0] ext4_bio_write_page+0x31f/0x3040 [ 145.221186][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 145.226864][ C0] ext4_writepages+0x3401/0x6870 [ 145.231886][ C0] ? __brelse+0x8b/0x110 [ 145.236172][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 145.240999][ C0] do_writepages+0x15f/0x420 [ 145.245624][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.250958][ C0] __writeback_single_inode+0x149/0xca0 [ 145.256548][ C0] writeback_sb_inodes+0x1567/0x3690 [ 145.262008][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program [ 145.268109][ C0] ? trylock_super+0x237/0x240 [ 145.272905][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 145.278223][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 145.284330][ C0] ? queue_io+0x63a/0x990 [ 145.288696][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.293924][ C0] wb_writeback+0x7d1/0x1120 [ 145.298548][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 145.304645][ C0] wb_do_writeback+0x10bf/0x1450 [ 145.309655][ C0] wb_workfn+0x214/0xab0 [ 145.313932][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program executing program [ 145.319171][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 145.325011][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 145.331123][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.336355][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 145.342107][ C0] process_one_work+0x1219/0x1fe0 [ 145.347181][ C0] worker_thread+0x10ec/0x2340 [ 145.352089][ C0] kthread+0x521/0x560 [ 145.356184][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 145.361408][ C0] ? kthread_blkcg+0x110/0x110 [ 145.366334][ C0] ret_from_fork+0x1f/0x30 executing program executing program executing program executing program [ 145.370805][ C0] [ 145.373150][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 145.380526][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 145.385841][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 145.391356][ C0] ===================================================== [ 145.398310][ C0] ===================================================== [ 145.405264][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc0e/0x12f0 [ 145.412240][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 executing program executing program executing program executing program executing program [ 145.421984][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 145.432279][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 145.438427][ C0] Call Trace: [ 145.441725][ C0] [ 145.444603][ C0] dump_stack+0x24c/0x2e0 [ 145.449034][ C0] kmsan_report+0xfb/0x1e0 [ 145.453781][ C0] __msan_warning+0x5c/0xa0 [ 145.458438][ C0] profile_hits+0xc0e/0x12f0 [ 145.463060][ C0] profile_tick+0x215/0x220 executing program executing program executing program executing program [ 145.467816][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 145.473966][ C0] tick_sched_timer+0x472/0x5b0 [ 145.478861][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 145.484442][ C0] __run_hrtimer+0x48b/0xd20 [ 145.489082][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 145.494134][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.499716][ C0] ? hrtimer_init+0x570/0x570 [ 145.504431][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 145.510392][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 145.516077][ C0] executing program executing program executing program executing program executing program [ 145.519037][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 145.525056][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 145.531515][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 145.551327][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 145.557430][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program [ 145.565441][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 145.573457][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 145.581461][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 145.589561][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 145.597718][ C0] __test_set_page_writeback+0xe32/0x1040 [ 145.603487][ C0] ext4_bio_write_page+0x31f/0x3040 [ 145.608725][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 145.614407][ C0] ext4_writepages+0x3401/0x6870 executing program executing program executing program executing program executing program [ 145.619399][ C0] ? __brelse+0x8b/0x110 [ 145.623987][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 145.628794][ C0] do_writepages+0x15f/0x420 [ 145.633431][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.638758][ C0] __writeback_single_inode+0x149/0xca0 [ 145.644508][ C0] writeback_sb_inodes+0x1567/0x3690 [ 145.650160][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 145.656257][ C0] ? trylock_super+0x237/0x240 [ 145.661065][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 145.666387][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program [ 145.672495][ C0] ? queue_io+0x63a/0x990 [ 145.676868][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.682106][ C0] wb_writeback+0x7d1/0x1120 [ 145.686737][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 145.692961][ C0] wb_do_writeback+0x10bf/0x1450 [ 145.698080][ C0] wb_workfn+0x214/0xab0 [ 145.702367][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.707618][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 145.713467][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program executing program [ 145.719575][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.724817][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 145.730575][ C0] process_one_work+0x1219/0x1fe0 [ 145.735654][ C0] worker_thread+0x10ec/0x2340 [ 145.740469][ C0] kthread+0x521/0x560 [ 145.744584][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 145.749827][ C0] ? kthread_blkcg+0x110/0x110 [ 145.754616][ C0] ret_from_fork+0x1f/0x30 [ 145.759064][ C0] [ 145.761396][ C0] Local variable ----newes@ext4_es_insert_extent created at: executing program executing program executing program executing program executing program [ 145.768859][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 145.774178][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 145.779491][ C0] ===================================================== [ 145.786542][ C0] ===================================================== [ 145.793538][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc1b/0x12f0 [ 145.800509][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 145.810247][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program [ 145.820526][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 145.826554][ C0] Call Trace: [ 145.829927][ C0] [ 145.832809][ C0] dump_stack+0x24c/0x2e0 [ 145.837204][ C0] kmsan_report+0xfb/0x1e0 [ 145.841672][ C0] __msan_warning+0x5c/0xa0 [ 145.846197][ C0] profile_hits+0xc1b/0x12f0 [ 145.850811][ C0] profile_tick+0x215/0x220 [ 145.855339][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 145.861268][ C0] tick_sched_timer+0x472/0x5b0 [ 145.866237][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 executing program executing program executing program executing program executing program [ 145.871904][ C0] __run_hrtimer+0x48b/0xd20 [ 145.876618][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 145.881678][ C0] ? kmsan_get_metadata+0x116/0x180 [ 145.886910][ C0] ? hrtimer_init+0x570/0x570 [ 145.891705][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 145.897710][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 145.903389][ C0] [ 145.906345][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 145.912358][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 145.918815][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 145.938711][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 145.944890][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 145.953028][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 145.961283][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 executing program executing program executing program executing program executing program [ 145.969392][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 145.977390][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 145.985396][ C0] __test_set_page_writeback+0xe32/0x1040 [ 145.991161][ C0] ext4_bio_write_page+0x31f/0x3040 [ 145.996390][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 146.002149][ C0] ext4_writepages+0x3401/0x6870 [ 146.007137][ C0] ? __brelse+0x8b/0x110 [ 146.011435][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 146.016406][ C0] do_writepages+0x15f/0x420 executing program executing program executing program executing program [ 146.021196][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.026626][ C0] __writeback_single_inode+0x149/0xca0 [ 146.032209][ C0] writeback_sb_inodes+0x1567/0x3690 [ 146.037544][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.043901][ C0] ? trylock_super+0x237/0x240 [ 146.048696][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 146.054022][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.060493][ C0] ? queue_io+0x63a/0x990 [ 146.064863][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.070101][ C0] wb_writeback+0x7d1/0x1120 executing program executing program executing program executing program executing program [ 146.074723][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 146.080799][ C0] wb_do_writeback+0x10bf/0x1450 [ 146.085785][ C0] wb_workfn+0x214/0xab0 [ 146.090048][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.095272][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 146.101126][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.107325][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.112558][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 146.118401][ C0] process_one_work+0x1219/0x1fe0 executing program executing program executing program executing program [ 146.123646][ C0] worker_thread+0x10ec/0x2340 [ 146.128572][ C0] kthread+0x521/0x560 [ 146.132683][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 146.137918][ C0] ? kthread_blkcg+0x110/0x110 [ 146.142722][ C0] ret_from_fork+0x1f/0x30 [ 146.147175][ C0] [ 146.149508][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 146.156993][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.162311][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.167633][ C0] ===================================================== executing program executing program executing program executing program executing program [ 146.174804][ C0] ===================================================== [ 146.182111][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc2b/0x12f0 [ 146.189087][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 146.198916][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.209102][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 146.215162][ C0] Call Trace: [ 146.218623][ C0] executing program executing program executing program executing program [ 146.221483][ C0] dump_stack+0x24c/0x2e0 [ 146.225849][ C0] kmsan_report+0xfb/0x1e0 [ 146.230392][ C0] __msan_warning+0x5c/0xa0 [ 146.235017][ C0] profile_hits+0xc2b/0x12f0 [ 146.239759][ C0] profile_tick+0x215/0x220 [ 146.244292][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 146.250348][ C0] tick_sched_timer+0x472/0x5b0 [ 146.255254][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 146.260838][ C0] __run_hrtimer+0x48b/0xd20 [ 146.265659][ C0] hrtimer_interrupt+0x6e2/0x1b50 executing program executing program executing program executing program executing program [ 146.270805][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.276125][ C0] ? hrtimer_init+0x570/0x570 [ 146.281179][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 146.287106][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 146.292776][ C0] [ 146.295721][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 146.301904][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 146.308367][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 146.328087][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 146.334204][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 146.342202][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 146.350599][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 146.358812][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 146.367156][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 executing program executing program executing program executing program executing program [ 146.375292][ C0] __test_set_page_writeback+0xe32/0x1040 [ 146.381062][ C0] ext4_bio_write_page+0x31f/0x3040 [ 146.386388][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 146.392057][ C0] ext4_writepages+0x3401/0x6870 [ 146.401069][ C0] ? __brelse+0x8b/0x110 [ 146.405330][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 146.410127][ C0] do_writepages+0x15f/0x420 [ 146.414744][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.419972][ C0] __writeback_single_inode+0x149/0xca0 executing program executing program executing program executing program [ 146.425554][ C0] writeback_sb_inodes+0x1567/0x3690 [ 146.430892][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.437477][ C0] ? trylock_super+0x237/0x240 [ 146.442271][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 146.447601][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.453701][ C0] ? queue_io+0x63a/0x990 [ 146.458078][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.463307][ C0] wb_writeback+0x7d1/0x1120 [ 146.467937][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 executing program executing program executing program executing program executing program [ 146.474096][ C0] wb_do_writeback+0x10bf/0x1450 [ 146.479251][ C0] wb_workfn+0x214/0xab0 [ 146.483525][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.488917][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 146.494771][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.500988][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.506283][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 146.512274][ C0] process_one_work+0x1219/0x1fe0 [ 146.517433][ C0] worker_thread+0x10ec/0x2340 [ 146.522243][ C0] kthread+0x521/0x560 executing program executing program executing program executing program [ 146.526443][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 146.531683][ C0] ? kthread_blkcg+0x110/0x110 [ 146.536483][ C0] ret_from_fork+0x1f/0x30 [ 146.540991][ C0] [ 146.543328][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 146.550850][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.556268][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.561586][ C0] ===================================================== [ 146.568549][ C0] ===================================================== executing program executing program executing program executing program executing program [ 146.575480][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc51/0x12f0 [ 146.582650][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 146.592391][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.602483][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 146.608511][ C0] Call Trace: [ 146.611820][ C0] [ 146.614682][ C0] dump_stack+0x24c/0x2e0 [ 146.619051][ C0] kmsan_report+0xfb/0x1e0 executing program executing program executing program executing program [ 146.623529][ C0] __msan_warning+0x5c/0xa0 [ 146.628295][ C0] profile_hits+0xc51/0x12f0 [ 146.632917][ C0] profile_tick+0x215/0x220 [ 146.637587][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 146.643522][ C0] tick_sched_timer+0x472/0x5b0 [ 146.648413][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 146.654090][ C0] __run_hrtimer+0x48b/0xd20 [ 146.658732][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 146.663919][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.669452][ C0] ? hrtimer_init+0x570/0x570 executing program executing program executing program executing program [ 146.674165][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 146.680232][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 146.685907][ C0] [ 146.688945][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 146.695062][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 146.701523][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 146.721380][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 executing program executing program executing program executing program executing program [ 146.727714][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 146.737112][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 146.745162][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 146.753165][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 146.761328][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 146.769440][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program [ 146.775207][ C0] ext4_bio_write_page+0x31f/0x3040 [ 146.780448][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 146.786153][ C0] ext4_writepages+0x3401/0x6870 [ 146.791143][ C0] ? __brelse+0x8b/0x110 [ 146.795705][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 146.800503][ C0] do_writepages+0x15f/0x420 [ 146.805387][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.810826][ C0] __writeback_single_inode+0x149/0xca0 [ 146.816428][ C0] writeback_sb_inodes+0x1567/0x3690 [ 146.821770][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program executing program [ 146.827960][ C0] ? trylock_super+0x237/0x240 [ 146.832759][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 146.838092][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.844191][ C0] ? queue_io+0x63a/0x990 [ 146.848756][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.853988][ C0] wb_writeback+0x7d1/0x1120 [ 146.858622][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 146.864813][ C0] wb_do_writeback+0x10bf/0x1450 [ 146.869799][ C0] wb_workfn+0x214/0xab0 executing program executing program executing program executing program executing program [ 146.874079][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.879309][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 146.885157][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 146.891265][ C0] ? kmsan_get_metadata+0x116/0x180 [ 146.896645][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 146.902459][ C0] process_one_work+0x1219/0x1fe0 [ 146.907529][ C0] worker_thread+0x10ec/0x2340 [ 146.912338][ C0] kthread+0x521/0x560 [ 146.916519][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 146.921765][ C0] ? kthread_blkcg+0x110/0x110 executing program executing program executing program executing program [ 146.927258][ C0] ret_from_fork+0x1f/0x30 [ 146.931813][ C0] [ 146.934336][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 146.941714][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.947115][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 146.952431][ C0] ===================================================== [ 146.959378][ C0] ===================================================== [ 146.966323][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc5e/0x12f0 executing program executing program executing program executing program executing program [ 146.973423][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 146.983166][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 146.993244][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 146.999366][ C0] Call Trace: [ 147.002663][ C0] [ 147.005637][ C0] dump_stack+0x24c/0x2e0 [ 147.010002][ C0] kmsan_report+0xfb/0x1e0 [ 147.014563][ C0] __msan_warning+0x5c/0xa0 [ 147.019100][ C0] profile_hits+0xc5e/0x12f0 [ 147.023723][ C0] profile_tick+0x215/0x220 executing program executing program executing program executing program [ 147.028400][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 147.034345][ C0] tick_sched_timer+0x472/0x5b0 [ 147.039234][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 147.044819][ C0] __run_hrtimer+0x48b/0xd20 [ 147.049571][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 147.054779][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.060047][ C0] ? hrtimer_init+0x570/0x570 [ 147.064764][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 147.070794][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 executing program executing program executing program executing program executing program [ 147.076628][ C0] [ 147.079671][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 147.085777][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 147.092396][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 147.112217][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 147.118321][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program [ 147.126327][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 147.134328][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 147.142333][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 147.150333][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 147.158345][ C0] __test_set_page_writeback+0xe32/0x1040 [ 147.164234][ C0] ext4_bio_write_page+0x31f/0x3040 [ 147.169473][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 executing program executing program executing program executing program [ 147.175148][ C0] ext4_writepages+0x3401/0x6870 [ 147.180493][ C0] ? __brelse+0x8b/0x110 [ 147.184899][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 147.189716][ C0] do_writepages+0x15f/0x420 [ 147.194337][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.199550][ C0] __writeback_single_inode+0x149/0xca0 [ 147.205183][ C0] writeback_sb_inodes+0x1567/0x3690 [ 147.210669][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.216776][ C0] ? trylock_super+0x237/0x240 [ 147.221579][ C0] __writeback_inodes_wb+0x1d6/0x860 executing program executing program executing program executing program executing program [ 147.226911][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.233024][ C0] ? queue_io+0x63a/0x990 [ 147.237480][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.242951][ C0] wb_writeback+0x7d1/0x1120 [ 147.247600][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 147.253709][ C0] wb_do_writeback+0x10bf/0x1450 [ 147.258695][ C0] wb_workfn+0x214/0xab0 [ 147.262978][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.268521][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 executing program executing program executing program executing program [ 147.274475][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.280588][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.285835][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 147.291576][ C0] process_one_work+0x1219/0x1fe0 [ 147.296653][ C0] worker_thread+0x10ec/0x2340 [ 147.301469][ C0] kthread+0x521/0x560 [ 147.305576][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 147.310931][ C0] ? kthread_blkcg+0x110/0x110 [ 147.315739][ C0] ret_from_fork+0x1f/0x30 [ 147.320194][ C0] [ 147.322530][ C0] Local variable ----newes@ext4_es_insert_extent created at: executing program executing program executing program executing program executing program [ 147.329905][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 147.335367][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 147.340693][ C0] ===================================================== [ 147.347647][ C0] ===================================================== [ 147.354591][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc6e/0x12f0 [ 147.361569][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 executing program executing program executing program executing program [ 147.371414][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.381505][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 147.387533][ C0] Call Trace: [ 147.390838][ C0] [ 147.393710][ C0] dump_stack+0x24c/0x2e0 [ 147.398152][ C0] kmsan_report+0xfb/0x1e0 [ 147.402660][ C0] __msan_warning+0x5c/0xa0 [ 147.407308][ C0] profile_hits+0xc6e/0x12f0 [ 147.412200][ C0] profile_tick+0x215/0x220 [ 147.416918][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 147.422944][ C0] tick_sched_timer+0x472/0x5b0 executing program executing program executing program executing program [ 147.427842][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 147.433422][ C0] __run_hrtimer+0x48b/0xd20 [ 147.438152][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 147.443222][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.448468][ C0] ? hrtimer_init+0x570/0x570 [ 147.453185][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 147.459332][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 147.465233][ C0] [ 147.468472][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 147.474587][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program executing program [ 147.481253][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 147.501103][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 147.507289][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 147.515294][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 147.523388][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 executing program executing program executing program executing program [ 147.531518][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 147.539524][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 147.547532][ C0] __test_set_page_writeback+0xe32/0x1040 [ 147.553314][ C0] ext4_bio_write_page+0x31f/0x3040 [ 147.558564][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 147.564245][ C0] ext4_writepages+0x3401/0x6870 [ 147.569438][ C0] ? __brelse+0x8b/0x110 [ 147.573773][ C0] ? ext4_readpage+0x3b0/0x3b0 executing program executing program executing program executing program executing program [ 147.578582][ C0] do_writepages+0x15f/0x420 [ 147.583389][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.588631][ C0] __writeback_single_inode+0x149/0xca0 [ 147.594224][ C0] writeback_sb_inodes+0x1567/0x3690 [ 147.599687][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.605795][ C0] ? trylock_super+0x237/0x240 [ 147.610601][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 147.615930][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.622056][ C0] ? queue_io+0x63a/0x990 [ 147.626687][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 147.631922][ C0] wb_writeback+0x7d1/0x1120 [ 147.636634][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 147.643077][ C0] wb_do_writeback+0x10bf/0x1450 [ 147.648105][ C0] wb_workfn+0x214/0xab0 [ 147.652389][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.657632][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 147.663482][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 147.669932][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.675260][ C0] ? inode_wait_for_writeback+0x320/0x320 executing program executing program executing program executing program [ 147.681037][ C0] process_one_work+0x1219/0x1fe0 [ 147.686239][ C0] worker_thread+0x10ec/0x2340 [ 147.691030][ C0] kthread+0x521/0x560 [ 147.695139][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 147.700379][ C0] ? kthread_blkcg+0x110/0x110 [ 147.705182][ C0] ret_from_fork+0x1f/0x30 [ 147.709727][ C0] [ 147.712067][ C0] Uninit was stored to memory at: [ 147.717122][ C0] kmsan_internal_chain_origin+0xad/0x130 [ 147.723003][ C0] __msan_chain_origin+0x54/0xa0 executing program executing program executing program executing program executing program [ 147.728017][ C0] profile_hits+0x1285/0x12f0 [ 147.732754][ C0] profile_tick+0x215/0x220 [ 147.737267][ C0] tick_sched_timer+0x472/0x5b0 [ 147.742151][ C0] __run_hrtimer+0x48b/0xd20 [ 147.746918][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 147.751980][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 147.757999][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 147.764038][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 147.770290][ C0] [ 147.772752][ C0] Local variable ----newes@ext4_es_insert_extent created at: executing program executing program executing program executing program [ 147.780140][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 147.785554][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 147.791138][ C0] ===================================================== [ 147.798103][ C0] ===================================================== [ 147.805314][ C0] BUG: KMSAN: uninit-value in profile_hits+0x1252/0x12f0 [ 147.812480][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 147.822498][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program [ 147.832675][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 147.838703][ C0] Call Trace: [ 147.842015][ C0] [ 147.844891][ C0] dump_stack+0x24c/0x2e0 [ 147.849271][ C0] kmsan_report+0xfb/0x1e0 [ 147.853732][ C0] __msan_warning+0x5c/0xa0 [ 147.858277][ C0] profile_hits+0x1252/0x12f0 [ 147.862993][ C0] profile_tick+0x215/0x220 [ 147.867554][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 147.873490][ C0] tick_sched_timer+0x472/0x5b0 executing program executing program executing program executing program executing program [ 147.878521][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 147.884106][ C0] __run_hrtimer+0x48b/0xd20 [ 147.888742][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 147.895603][ C0] ? kmsan_get_metadata+0x116/0x180 [ 147.900851][ C0] ? hrtimer_init+0x570/0x570 [ 147.905584][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 147.911525][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 147.917204][ C0] [ 147.920169][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 147.926201][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 147.932673][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 147.952526][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 147.958625][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 147.966627][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 147.974643][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 executing program executing program executing program executing program executing program [ 147.982654][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 147.990665][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 147.998687][ C0] __test_set_page_writeback+0xe32/0x1040 [ 148.004462][ C0] ext4_bio_write_page+0x31f/0x3040 [ 148.009704][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 148.015439][ C0] ext4_writepages+0x3401/0x6870 [ 148.020441][ C0] ? __brelse+0x8b/0x110 [ 148.024723][ C0] ? ext4_readpage+0x3b0/0x3b0 executing program executing program executing program executing program [ 148.029629][ C0] do_writepages+0x15f/0x420 [ 148.034257][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.039497][ C0] __writeback_single_inode+0x149/0xca0 [ 148.045095][ C0] writeback_sb_inodes+0x1567/0x3690 [ 148.050442][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.056551][ C0] ? trylock_super+0x237/0x240 [ 148.061386][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 148.066750][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.072854][ C0] ? queue_io+0x63a/0x990 [ 148.077236][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 148.082585][ C0] wb_writeback+0x7d1/0x1120 [ 148.087313][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 148.093434][ C0] wb_do_writeback+0x10bf/0x1450 [ 148.098486][ C0] wb_workfn+0x214/0xab0 [ 148.102910][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.108146][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 148.113989][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.120447][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.125691][ C0] ? inode_wait_for_writeback+0x320/0x320 executing program executing program executing program executing program executing program [ 148.131449][ C0] process_one_work+0x1219/0x1fe0 [ 148.136519][ C0] worker_thread+0x10ec/0x2340 [ 148.141420][ C0] kthread+0x521/0x560 [ 148.145634][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 148.150874][ C0] ? kthread_blkcg+0x110/0x110 [ 148.155887][ C0] ret_from_fork+0x1f/0x30 [ 148.160460][ C0] [ 148.162808][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 148.170447][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.175787][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.181196][ C0] ===================================================== [ 148.188275][ C0] ===================================================== [ 148.195283][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbd1/0x12f0 [ 148.202248][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 148.212152][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 148.222574][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 148.228913][ C0] Call Trace: [ 148.232269][ C0] [ 148.235140][ C0] dump_stack+0x24c/0x2e0 [ 148.239497][ C0] kmsan_report+0xfb/0x1e0 [ 148.243936][ C0] __msan_warning+0x5c/0xa0 [ 148.248703][ C0] profile_hits+0xbd1/0x12f0 [ 148.253572][ C0] profile_tick+0x215/0x220 [ 148.258302][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 148.264225][ C0] tick_sched_timer+0x472/0x5b0 [ 148.269282][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 148.274854][ C0] __run_hrtimer+0x48b/0xd20 [ 148.279491][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 148.284738][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.290238][ C0] ? hrtimer_init+0x570/0x570 [ 148.295096][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 148.301194][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 148.306954][ C0] [ 148.309996][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 148.316129][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 148.322583][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 148.342509][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 148.348637][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 148.356632][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 148.364630][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 148.372626][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 executing program [ 148.380625][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 148.388635][ C0] __test_set_page_writeback+0xe32/0x1040 [ 148.394405][ C0] ext4_bio_write_page+0x31f/0x3040 [ 148.399655][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 148.405332][ C0] ext4_writepages+0x3401/0x6870 [ 148.410345][ C0] ? __brelse+0x8b/0x110 [ 148.414634][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 148.419443][ C0] do_writepages+0x15f/0x420 [ 148.424083][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.429315][ C0] __writeback_single_inode+0x149/0xca0 executing program [ 148.434903][ C0] writeback_sb_inodes+0x1567/0x3690 [ 148.440236][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.446333][ C0] ? trylock_super+0x237/0x240 [ 148.451160][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 148.456489][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.462582][ C0] ? queue_io+0x63a/0x990 [ 148.466954][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.472195][ C0] wb_writeback+0x7d1/0x1120 [ 148.476991][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 148.483100][ C0] wb_do_writeback+0x10bf/0x1450 [ 148.488099][ C0] wb_workfn+0x214/0xab0 [ 148.492372][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.497781][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 148.503627][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.509769][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.515213][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 148.521533][ C0] process_one_work+0x1219/0x1fe0 [ 148.526605][ C0] worker_thread+0x10ec/0x2340 [ 148.531413][ C0] kthread+0x521/0x560 executing program [ 148.535516][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 148.540753][ C0] ? kthread_blkcg+0x110/0x110 [ 148.545724][ C0] ret_from_fork+0x1f/0x30 [ 148.550180][ C0] [ 148.552511][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 148.559893][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.565300][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.570638][ C0] ===================================================== [ 148.577584][ C0] ===================================================== [ 148.584636][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbde/0x12f0 [ 148.591610][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 148.601438][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 148.611666][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 148.617796][ C0] Call Trace: [ 148.621106][ C0] [ 148.624033][ C0] dump_stack+0x24c/0x2e0 [ 148.628491][ C0] kmsan_report+0xfb/0x1e0 executing program [ 148.633064][ C0] __msan_warning+0x5c/0xa0 [ 148.637603][ C0] profile_hits+0xbde/0x12f0 [ 148.642238][ C0] profile_tick+0x215/0x220 [ 148.646770][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 148.652698][ C0] tick_sched_timer+0x472/0x5b0 [ 148.657584][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 148.663174][ C0] __run_hrtimer+0x48b/0xd20 [ 148.667837][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 148.672931][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.678198][ C0] ? hrtimer_init+0x570/0x570 [ 148.683037][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 148.688973][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 148.694678][ C0] [ 148.697647][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 148.703669][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 148.710135][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 148.730400][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 executing program executing program [ 148.736601][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 148.744603][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 148.752608][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 148.760607][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 148.768699][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 148.776704][ C0] __test_set_page_writeback+0xe32/0x1040 executing program executing program executing program executing program executing program [ 148.782521][ C0] ext4_bio_write_page+0x31f/0x3040 [ 148.787762][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 148.793479][ C0] ext4_writepages+0x3401/0x6870 [ 148.798596][ C0] ? __brelse+0x8b/0x110 [ 148.802858][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 148.807663][ C0] do_writepages+0x15f/0x420 [ 148.812292][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.817531][ C0] __writeback_single_inode+0x149/0xca0 [ 148.823124][ C0] writeback_sb_inodes+0x1567/0x3690 [ 148.828471][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program [ 148.834577][ C0] ? trylock_super+0x237/0x240 [ 148.839389][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 148.844893][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.851088][ C0] ? queue_io+0x63a/0x990 [ 148.855749][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.861074][ C0] wb_writeback+0x7d1/0x1120 [ 148.865716][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 148.871918][ C0] wb_do_writeback+0x10bf/0x1450 [ 148.876989][ C0] wb_workfn+0x214/0xab0 [ 148.881405][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program [ 148.886645][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 148.892492][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 148.898600][ C0] ? kmsan_get_metadata+0x116/0x180 [ 148.903883][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 148.909651][ C0] process_one_work+0x1219/0x1fe0 [ 148.914727][ C0] worker_thread+0x10ec/0x2340 [ 148.919546][ C0] kthread+0x521/0x560 [ 148.923757][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 148.929005][ C0] ? kthread_blkcg+0x110/0x110 executing program executing program executing program executing program executing program [ 148.933895][ C0] ret_from_fork+0x1f/0x30 [ 148.938366][ C0] [ 148.940705][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 148.948086][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.953419][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 148.958981][ C0] ===================================================== [ 148.965936][ C0] ===================================================== [ 148.972888][ C0] BUG: KMSAN: uninit-value in profile_hits+0xbeb/0x12f0 executing program executing program executing program executing program [ 148.979863][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 148.989731][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 148.999823][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 149.005863][ C0] Call Trace: [ 149.009164][ C0] [ 149.012026][ C0] dump_stack+0x24c/0x2e0 [ 149.016512][ C0] kmsan_report+0xfb/0x1e0 [ 149.021003][ C0] __msan_warning+0x5c/0xa0 [ 149.025544][ C0] profile_hits+0xbeb/0x12f0 [ 149.030192][ C0] profile_tick+0x215/0x220 executing program executing program executing program executing program executing program [ 149.034732][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 149.040788][ C0] tick_sched_timer+0x472/0x5b0 [ 149.045685][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 149.051278][ C0] __run_hrtimer+0x48b/0xd20 [ 149.055921][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 149.060990][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.066236][ C0] ? hrtimer_init+0x570/0x570 [ 149.071011][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 149.077077][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 149.082751][ C0] executing program executing program executing program executing program [ 149.085706][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 149.091721][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 [ 149.098275][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 149.118094][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 149.124641][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 executing program executing program executing program executing program [ 149.132645][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 149.140773][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 149.148903][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 149.157079][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 149.165120][ C0] __test_set_page_writeback+0xe32/0x1040 [ 149.170893][ C0] ext4_bio_write_page+0x31f/0x3040 [ 149.176229][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 149.181912][ C0] ext4_writepages+0x3401/0x6870 executing program executing program executing program executing program executing program [ 149.186923][ C0] ? __brelse+0x8b/0x110 [ 149.191213][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 149.196018][ C0] do_writepages+0x15f/0x420 [ 149.200649][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.205895][ C0] __writeback_single_inode+0x149/0xca0 [ 149.211497][ C0] writeback_sb_inodes+0x1567/0x3690 [ 149.216835][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.223025][ C0] ? trylock_super+0x237/0x240 [ 149.227832][ C0] __writeback_inodes_wb+0x1d6/0x860 executing program executing program executing program executing program [ 149.233354][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.239520][ C0] ? queue_io+0x63a/0x990 [ 149.243901][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.249265][ C0] wb_writeback+0x7d1/0x1120 [ 149.253906][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 149.260020][ C0] wb_do_writeback+0x10bf/0x1450 [ 149.265112][ C0] wb_workfn+0x214/0xab0 [ 149.269410][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.274644][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.280495][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 executing program executing program executing program executing program executing program [ 149.286604][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.291842][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 149.297601][ C0] process_one_work+0x1219/0x1fe0 [ 149.302803][ C0] worker_thread+0x10ec/0x2340 [ 149.307615][ C0] kthread+0x521/0x560 [ 149.311720][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 149.316964][ C0] ? kthread_blkcg+0x110/0x110 [ 149.321766][ C0] ret_from_fork+0x1f/0x30 [ 149.326226][ C0] [ 149.328565][ C0] Local variable ----newes@ext4_es_insert_extent created at: executing program executing program executing program executing program [ 149.336022][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 149.341317][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 149.346644][ C0] ===================================================== [ 149.353811][ C0] ===================================================== [ 149.360761][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc0e/0x12f0 [ 149.367747][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.377927][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 executing program executing program executing program executing program executing program [ 149.388137][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 149.394169][ C0] Call Trace: [ 149.397474][ C0] [ 149.400339][ C0] dump_stack+0x24c/0x2e0 [ 149.404710][ C0] kmsan_report+0xfb/0x1e0 [ 149.409509][ C0] __msan_warning+0x5c/0xa0 [ 149.414185][ C0] profile_hits+0xc0e/0x12f0 [ 149.418847][ C0] profile_tick+0x215/0x220 [ 149.423389][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 149.429467][ C0] tick_sched_timer+0x472/0x5b0 [ 149.434351][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 executing program executing program executing program executing program [ 149.439939][ C0] __run_hrtimer+0x48b/0xd20 [ 149.444576][ C0] hrtimer_interrupt+0x6e2/0x1b50 [ 149.449650][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.454912][ C0] ? hrtimer_init+0x570/0x570 [ 149.459622][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 149.465552][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 149.471344][ C0] [ 149.474297][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 149.480308][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 149.486772][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 149.506581][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 149.512685][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 149.520787][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 149.528849][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 executing program executing program executing program executing program executing program [ 149.537168][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 149.545272][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 [ 149.553364][ C0] __test_set_page_writeback+0xe32/0x1040 [ 149.559215][ C0] ext4_bio_write_page+0x31f/0x3040 [ 149.564539][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 149.570213][ C0] ext4_writepages+0x3401/0x6870 [ 149.575209][ C0] ? __brelse+0x8b/0x110 [ 149.579513][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 149.584320][ C0] do_writepages+0x15f/0x420 executing program executing program executing program executing program [ 149.588950][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.594461][ C0] __writeback_single_inode+0x149/0xca0 [ 149.600141][ C0] writeback_sb_inodes+0x1567/0x3690 [ 149.605470][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.611577][ C0] ? trylock_super+0x237/0x240 [ 149.616372][ C0] __writeback_inodes_wb+0x1d6/0x860 [ 149.621691][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.627796][ C0] ? queue_io+0x63a/0x990 [ 149.632303][ C0] ? kmsan_get_metadata+0x116/0x180 executing program executing program executing program executing program executing program [ 149.637533][ C0] wb_writeback+0x7d1/0x1120 [ 149.642165][ C0] ? kmsan_internal_unpoison_shadow+0x42/0x70 [ 149.648273][ C0] wb_do_writeback+0x10bf/0x1450 [ 149.653389][ C0] wb_workfn+0x214/0xab0 [ 149.657682][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.662916][ C0] ? kmsan_get_shadow_origin_ptr+0x84/0xb0 [ 149.668742][ C0] ? __msan_metadata_ptr_for_load_8+0x10/0x20 [ 149.674860][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.680104][ C0] ? inode_wait_for_writeback+0x320/0x320 [ 149.685872][ C0] process_one_work+0x1219/0x1fe0 executing program executing program executing program executing program [ 149.690949][ C0] worker_thread+0x10ec/0x2340 [ 149.695759][ C0] kthread+0x521/0x560 [ 149.699875][ C0] ? process_one_work+0x1fe0/0x1fe0 [ 149.705373][ C0] ? kthread_blkcg+0x110/0x110 [ 149.710179][ C0] ret_from_fork+0x1f/0x30 [ 149.714648][ C0] [ 149.717007][ C0] Local variable ----newes@ext4_es_insert_extent created at: [ 149.724395][ C0] ext4_es_insert_extent+0xb7/0x6610 [ 149.729716][ C0] ext4_es_insert_extent+0xb7/0x6610 executing program executing program executing program executing program executing program [ 149.735037][ C0] ===================================================== [ 149.742044][ C0] ===================================================== [ 149.749099][ C0] BUG: KMSAN: uninit-value in profile_hits+0xc1b/0x12f0 [ 149.756078][ C0] CPU: 0 PID: 23 Comm: kworker/u4:1 Tainted: G B 5.12.0-rc6-syzkaller #0 [ 149.766032][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 149.776138][ C0] Workqueue: writeback wb_workfn (flush-8:0) [ 149.782187][ C0] Call Trace: [ 149.785482][ C0] executing program executing program executing program executing program [ 149.788357][ C0] dump_stack+0x24c/0x2e0 [ 149.792714][ C0] kmsan_report+0xfb/0x1e0 [ 149.797732][ C0] __msan_warning+0x5c/0xa0 [ 149.802242][ C0] profile_hits+0xc1b/0x12f0 [ 149.806871][ C0] profile_tick+0x215/0x220 [ 149.811609][ C0] ? __test_set_page_writeback+0xe32/0x1040 [ 149.817631][ C0] tick_sched_timer+0x472/0x5b0 [ 149.822615][ C0] ? tick_setup_sched_timer+0x5a0/0x5a0 [ 149.828289][ C0] __run_hrtimer+0x48b/0xd20 [ 149.832919][ C0] hrtimer_interrupt+0x6e2/0x1b50 executing program executing program executing program executing program executing program [ 149.837984][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.843246][ C0] ? hrtimer_init+0x570/0x570 [ 149.847963][ C0] __sysvec_apic_timer_interrupt+0xfd/0x470 [ 149.853933][ C0] sysvec_apic_timer_interrupt+0xc1/0xf0 [ 149.859609][ C0] [ 149.862557][ C0] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 149.868572][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x62/0x80 executing program executing program executing program executing program [ 149.875241][ C0] Code: 00 00 41 c6 04 24 00 81 e3 00 02 00 00 41 81 e7 00 02 00 00 48 85 db 74 0a f7 d3 44 21 fb 48 85 db 74 16 4d 85 ff 74 01 fb 5b <41> 5c 41 5e 41 5f 5d c3 e8 11 ca b6 f2 eb be 44 89 f7 e8 07 ca b6 [ 149.895125][ C0] RSP: 0018:ffff8881024ceee8 EFLAGS: 00000206 [ 149.901223][ C0] RAX: ffff88812461d0b8 RBX: 0000000000000000 RCX: 0000000124a1d0b8 [ 149.909392][ C0] RDX: ffff888124a1d0b8 RSI: 0000000000000240 RDI: ffff888124e1d0b8 [ 149.917481][ C0] RBP: ffff8881024cef00 R08: ffffea000000000f R09: ffff88813fffa000 [ 149.925487][ C0] R10: 000000009139edcd R11: ffff8881024c1f40 R12: ffff888124e1d0b8 [ 149.933487][ C0] R13: ffffea0005c431f0 R14: 0000000000000000 R15: 0000000000000200 executing program executing program executing program executing program executing program [ 149.941498][ C0] __test_set_page_writeback+0xe32/0x1040 [ 149.947359][ C0] ext4_bio_write_page+0x31f/0x3040 [ 149.952601][ C0] ? clear_page_dirty_for_io+0x8b7/0x990 [ 149.958283][ C0] ext4_writepages+0x3401/0x6870 [ 149.963279][ C0] ? __brelse+0x8b/0x110 [ 149.967563][ C0] ? ext4_readpage+0x3b0/0x3b0 [ 149.972364][ C0] do_writepages+0x15f/0x420 [ 149.977139][ C0] ? kmsan_get_metadata+0x116/0x180 [ 149.982380][ C0] __writeback_single_inode+0x149/0xca0