Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 92.277392][ T8497] ================================================================== [ 92.288433][ T8497] BUG: KASAN: slab-out-of-bounds in _copy_to_user+0xc7/0x150 [ 92.296120][ T8497] Read of size 42 at addr ffff888013b20980 by task syz-executor524/8497 [ 92.305170][ T8497] [ 92.307537][ T8497] CPU: 1 PID: 8497 Comm: syz-executor524 Not tainted 5.12.0-rc4-syzkaller #0 [ 92.316701][ T8497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 92.327377][ T8497] Call Trace: [ 92.331116][ T8497] dump_stack+0x141/0x1d7 [ 92.335735][ T8497] ? _copy_to_user+0xc7/0x150 [ 92.341298][ T8497] print_address_description.constprop.0.cold+0x5b/0x2f8 [ 92.348809][ T8497] ? _copy_to_user+0xc7/0x150 [ 92.353884][ T8497] ? _copy_to_user+0xc7/0x150 [ 92.358856][ T8497] kasan_report.cold+0x7c/0xd8 [ 92.363992][ T8497] ? _copy_to_user+0xc7/0x150 [ 92.368949][ T8497] kasan_check_range+0x13d/0x180 [ 92.374098][ T8497] _copy_to_user+0xc7/0x150 [ 92.378869][ T8497] __htab_map_lookup_and_delete_batch+0xef4/0x1860 [ 92.385767][ T8497] ? find_held_lock+0x2d/0x110 [ 92.390853][ T8497] ? htab_of_map_alloc+0xf0/0xf0 [ 92.395851][ T8497] ? htab_map_lookup_batch+0x30/0x30 [ 92.401693][ T8497] bpf_map_do_batch+0x3d5/0x510 [ 92.406931][ T8497] __do_sys_bpf+0x1be4/0x4f40 [ 92.411907][ T8497] ? bpf_link_get_from_fd+0x110/0x110 [ 92.417944][ T8497] ? find_held_lock+0x2d/0x110 [ 92.423388][ T8497] ? __context_tracking_exit+0xb8/0xe0 [ 92.429450][ T8497] ? lock_downgrade+0x6e0/0x6e0 [ 92.434937][ T8497] ? syscall_enter_from_user_mode+0x27/0x70 [ 92.441186][ T8497] do_syscall_64+0x2d/0x70 [ 92.445955][ T8497] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 92.453380][ T8497] RIP: 0033:0x445ac9 [ 92.457561][ T8497] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 92.478846][ T8497] RSP: 002b:00007fb4a0c0a2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 92.487393][ T8497] RAX: ffffffffffffffda RBX: 00000000004cb410 RCX: 0000000000445ac9 [ 92.495943][ T8497] RDX: 0000000000000038 RSI: 0000000020000080 RDI: 0000000000000019 [ 92.504152][ T8497] RBP: 000000000049a8f0 R08: 00007fb4a0c0a700 R09: 0000000000000000 [ 92.512649][ T8497] R10: 00007fb4a0c0a700 R11: 0000000000000246 R12: 00000000200031c0 [ 92.522477][ T8497] R13: 000000000049a078 R14: 00000000200021c0 R15: 00000000004cb418 [ 92.531615][ T8497] [ 92.534141][ T8497] Allocated by task 8497: [ 92.538752][ T8497] kasan_save_stack+0x1b/0x40 [ 92.543643][ T8497] __kasan_kmalloc+0x99/0xc0 [ 92.548449][ T8497] kvmalloc_node+0x61/0xf0 [ 92.553163][ T8497] __htab_map_lookup_and_delete_batch+0x513/0x1860 [ 92.560776][ T8497] bpf_map_do_batch+0x3d5/0x510 [ 92.565792][ T8497] __do_sys_bpf+0x1be4/0x4f40 [ 92.570651][ T8497] do_syscall_64+0x2d/0x70 [ 92.576063][ T8497] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 92.582565][ T8497] [ 92.585107][ T8497] The buggy address belongs to the object at ffff888013b20980 [ 92.585107][ T8497] which belongs to the cache kmalloc-64 of size 64 [ 92.601071][ T8497] The buggy address is located 0 bytes inside of [ 92.601071][ T8497] 64-byte region [ffff888013b20980, ffff888013b209c0) [ 92.614546][ T8497] The buggy address belongs to the page: [ 92.620510][ T8497] page:ffffea00004ec800 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x13b20 [ 92.631233][ T8497] flags: 0xfff00000000200(slab) [ 92.636377][ T8497] raw: 00fff00000000200 0000000000000000 0000001400000001 ffff888010841640 [ 92.646039][ T8497] raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 [ 92.655194][ T8497] page dumped because: kasan: bad access detected [ 92.662106][ T8497] [ 92.664646][ T8497] Memory state around the buggy address: [ 92.670873][ T8497] ffff888013b20880: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 92.679882][ T8497] ffff888013b20900: fa fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc [ 92.688917][ T8497] >ffff888013b20980: 00 00 00 00 03 fc fc fc fc fc fc fc fc fc fc fc [ 92.697014][ T8497] ^ [ 92.702375][ T8497] ffff888013b20a00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 92.710917][ T8497] ffff888013b20a80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc [ 92.719486][ T8497] ================================================================== [ 92.727747][ T8401] [ 92.727748][ T8497] Disabling lock debugging due to kernel taint [ 92.747088][ T8401] ============================= [ 92.761149][ T8401] WARNING: suspicious RCU usage [ 92.788634][ T8401] 5.12.0-rc4-syzkaller #0 Tainted: G B [ 92.796198][ T8401] ----------------------------- [ 92.838644][ T8401] kernel/sched/core.c:8294 Illegal context switch in RCU-bh read-side critical section! [ 92.888631][ T8401] [ 92.888631][ T8401] other info that might help us debug this: [ 92.888631][ T8401] [ 92.945443][ T8401] [ 92.945443][ T8401] rcu_scheduler_active = 2, debug_locks = 0 [ 92.988696][ T8401] no locks held by syz-executor524/8401. [ 92.995846][ T8401] [ 92.995846][ T8401] stack backtrace: [ 93.048652][ T8401] CPU: 1 PID: 8401 Comm: syz-executor524 Tainted: G B 5.12.0-rc4-syzkaller #0 [ 93.059595][ T8401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 93.071094][ T8401] Call Trace: [ 93.074582][ T8401] dump_stack+0x141/0x1d7 [ 93.079167][ T8401] ___might_sleep+0x229/0x2c0 [ 93.084282][ T8401] do_nanosleep+0x2ff/0x6a0 [ 93.088823][ T8401] ? schedule_timeout_idle+0x80/0x80 [ 93.094249][ T8401] ? debug_object_destroy+0x210/0x210 [ 93.099869][ T8401] ? memset+0x20/0x40 [ 93.104124][ T8401] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 93.110608][ T8401] ? __hrtimer_init+0x136/0x280 [ 93.118839][ T8401] hrtimer_nanosleep+0x1f9/0x4a0 [ 93.124159][ T8401] ? nanosleep_copyout+0x100/0x100 [ 93.129518][ T8401] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 93.135652][ T8401] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 93.142296][ T8401] ? get_timespec64+0x191/0x220 [ 93.147502][ T8401] ? put_timespec64+0x120/0x120 [ 93.153164][ T8401] common_nsleep+0xa2/0xc0 [ 93.157825][ T8401] __x64_sys_clock_nanosleep+0x2f4/0x430 [ 93.163640][ T8401] ? __ia32_sys_clock_getres_time32+0x270/0x270 [ 93.170541][ T8401] ? syscall_enter_from_user_mode+0x27/0x70 [ 93.176596][ T8401] do_syscall_64+0x2d/0x70 [ 93.181040][ T8401] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 93.186978][ T8401] RIP: 0033:0x46a04a [ 93.190891][ T8401] Code: 83 ff 03 74 3b 48 83 ec 28 b8 fa ff ff ff 83 ff 02 49 89 ca 0f 44 f8 64 8b 04 25 18 00 00 00 85 c0 75 2d b8 e6 00 00 00 0f 05 <89> c2 f7 da 3d 00 f0 ff ff b8 00 00 00 00 0f 47 c2 48 83 c4 28 c3 [ 93.211062][ T8401] RSP: 002b:00007fff3a46dc40 EFLAGS: 00000246 ORIG_RAX: 00000000000000e6 [ 93.220040][ T8401] RAX: ffffffffffffffda RBX: 000000000001638a RCX: 000000000046a04a [ 93.228467][ T8401] RDX: 00007fff3a46dc80 RSI: 0000000000000000 RDI: 0000000000000000 [ 93.236550][ T8401] RBP: 00000000000f4240 R08: 0000000000000000 R09: 00007fff3a5a8090 [ 93.244795][ T8401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000002126 [ 93.254125][ T8401] R13: 00007fff3a46dd20 R14: 00007fff3a46dd10 R15: 00007fff3a46dcd4 executing program executing program [ 94.257358][ T8497] Kernel panic - not syncing: panic_on_warn set ... [ 94.264738][ T8497] CPU: 1 PID: 8497 Comm: syz-executor524 Tainted: G B 5.12.0-rc4-syzkaller #0 [ 94.275915][ T8497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.286876][ T8497] Call Trace: [ 94.290206][ T8497] dump_stack+0x141/0x1d7 [ 94.295096][ T8497] panic+0x306/0x73d [ 94.299168][ T8497] ? __warn_printk+0xf3/0xf3 [ 94.303798][ T8497] ? preempt_schedule_common+0x59/0xc0 [ 94.309584][ T8497] ? _copy_to_user+0xc7/0x150 [ 94.315560][ T8497] ? preempt_schedule_thunk+0x16/0x18 [ 94.320968][ T8497] ? trace_hardirqs_on+0x38/0x1c0 [ 94.326255][ T8497] ? trace_hardirqs_on+0x51/0x1c0 [ 94.331340][ T8497] ? _copy_to_user+0xc7/0x150 [ 94.336144][ T8497] ? _copy_to_user+0xc7/0x150 [ 94.341176][ T8497] end_report.cold+0x5a/0x5a [ 94.346622][ T8497] kasan_report.cold+0x6a/0xd8 [ 94.351941][ T8497] ? _copy_to_user+0xc7/0x150 [ 94.356840][ T8497] kasan_check_range+0x13d/0x180 [ 94.361830][ T8497] _copy_to_user+0xc7/0x150 [ 94.366992][ T8497] __htab_map_lookup_and_delete_batch+0xef4/0x1860 [ 94.374118][ T8497] ? find_held_lock+0x2d/0x110 [ 94.379086][ T8497] ? htab_of_map_alloc+0xf0/0xf0 [ 94.384333][ T8497] ? htab_map_lookup_batch+0x30/0x30 [ 94.390387][ T8497] bpf_map_do_batch+0x3d5/0x510 [ 94.395879][ T8497] __do_sys_bpf+0x1be4/0x4f40 [ 94.401170][ T8497] ? bpf_link_get_from_fd+0x110/0x110 [ 94.407141][ T8497] ? find_held_lock+0x2d/0x110 [ 94.412399][ T8497] ? __context_tracking_exit+0xb8/0xe0 [ 94.418218][ T8497] ? lock_downgrade+0x6e0/0x6e0 [ 94.423114][ T8497] ? syscall_enter_from_user_mode+0x27/0x70 [ 94.429162][ T8497] do_syscall_64+0x2d/0x70 [ 94.434000][ T8497] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 94.440271][ T8497] RIP: 0033:0x445ac9 [ 94.444197][ T8497] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 94.465634][ T8497] RSP: 002b:00007fb4a0c0a2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 [ 94.474680][ T8497] RAX: ffffffffffffffda RBX: 00000000004cb410 RCX: 0000000000445ac9 [ 94.483656][ T8497] RDX: 0000000000000038 RSI: 0000000020000080 RDI: 0000000000000019 [ 94.492469][ T8497] RBP: 000000000049a8f0 R08: 00007fb4a0c0a700 R09: 0000000000000000 [ 94.500581][ T8497] R10: 00007fb4a0c0a700 R11: 0000000000000246 R12: 00000000200031c0 [ 94.508899][ T8497] R13: 000000000049a078 R14: 00000000200021c0 R15: 00000000004cb418 [ 94.517890][ T8497] Kernel Offset: disabled [ 94.522415][ T8497] Rebooting in 86400 seconds..