syzbot


Out of 169 bugs, 146 were automatically obsoleted (11 due to revoked reproducers), 23 were invalidated by users.
Applied filters: Label=subsystems:perf (drop)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported
BUG: soft lockup in xfrm_timer_handler (2) perf 1 1 94d 90d
BUG: soft lockup in packet_rcv perf trace 1 2 72d 124d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (5) perf 6 2 169d 182d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (5) perf 6 3 177d 194d
BUG: soft lockup in __sk_destruct perf 1 1 257d 257d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (4) perf 6 1 293d 293d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (3) perf 6 4 389d 439d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (4) perf 6 2 399d 402d
KCSAN: data-race in _free_event / perf_pending_task (2) perf 6 9 401d 512d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (9) perf 6 1 469d 469d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (2) perf 6 1 507d 507d
KASAN: slab-use-after-free Read in filter_chain perf trace 19 13 545d 603d
KASAN: slab-use-after-free Read in uprobe_mmap perf trace 19 67 547d 594d
WARNING in free_event perf -1 C unreliable done 1 609d 806d
KASAN: slab-use-after-free Read in uprobe_unregister trace perf 19 C unreliable 5 568d 567d
KCSAN: data-race in _free_event / perf_pending_task perf 6 6 557d 587d
KCSAN: data-race in __change_pid / perf_event_switch_output (3) perf 6 1 584d 584d
BUG: soft lockup in sys_perf_event_open perf 1 1 649d 645d
BUG: using __this_cpu_add() in preemptible code in graph_lock perf 4 1 691d 687d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (3) perf 6 2 627d 638d
WARNING: suspicious RCU usage in __schedule (2) perf 4 1 695d 691d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state perf 6 1 648d 648d
KCSAN: data-race in __change_pid / perf_event_switch_output (2) perf 6 1 656d 656d
KASAN: use-after-free Read in refcount_sub_and_test_checked (2) perf 19 syz done error 10 2218d 2624d
KCSAN: data-race in __change_pid / perf_event_switch_output perf 6 1 710d 710d
WARNING in ctx_sched_in (2) perf -1 1 782d 778d
KCSAN: data-race in perf_event_set_state / perf_event_update_userpage perf 6 1 735d 735d
KCSAN: data-race in detach_pid / perf_event_switch_output (4) perf 6 1 753d 753d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (2) perf 6 1 777d 777d
KCSAN: data-race in ctx_sched_out / perf_event_update_time perf 6 1 847d 821d
INFO: task hung in perf_event_free_task perf 1 C done error 40 912d 2421d
KCSAN: data-race in detach_pid / perf_event_switch_output (3) perf 6 1 907d 907d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (8) perf 6 2 965d 980d
KCSAN: data-race in perf_event_set_state / perf_event_update_time perf 6 2 975d 983d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (4) perf 6 2 987d 989d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (5) perf 6 2 995d 997d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (4) perf 6 1 1062d 1062d
INFO: task can't die in perf_event_free_task perf 1 syz unreliable 6 1237d 1937d
WARNING: held lock freed in uprobe_unregister trace perf 4 C error 3 1859d 1861d
KCSAN: data-race in event_sched_out / perf_event_update_time (4) perf 6 1 1171d 1171d
KCSAN: data-race in __perf_event_read_value / event_sched_out (6) perf 6 1 1195d 1195d
INFO: rcu detected stall in __perf_sw_event perf 1 syz done error 99 1769d 2588d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (7) perf 6 3 1212d 1264d
KCSAN: data-race in __perf_event_read_value / event_sched_out (5) perf 6 5 1232d 1289d
possible deadlock in down_trylock (2) perf 4 C error error 17 1415d 2686d
KCSAN: data-race in event_sched_out / perf_event_update_time (3) perf 6 1 1273d 1273d
possible deadlock in perf_event_ctx_lock_nested (2) perf 4 syz done 12 1601d 1758d
INFO: rcu detected stall in inet_sendmsg (3) perf 1 syz error error 68 1415d 2053d
KCSAN: data-race in event_sched_out / perf_event_update_time (2) perf 6 1 1308d 1308d
WARNING in add_event_to_ctx perf -1 C done done 7 2443d 2455d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (3) perf 6 1 1319d 1319d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (3) perf 6 1 1343d 1343d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (5) perf 6 1 1356d 1356d
KCSAN: data-race in __perf_event_read_value / event_sched_out (4) perf 6 1 1356d 1356d
KCSAN: data-race in event_sched_out / perf_event_update_time perf 6 2 1397d 1412d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (2) perf 6 1 1409d 1409d
KCSAN: data-race in __perf_event_read_value / event_sched_out (3) perf 6 2 1418d 1435d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (5) perf 6 2 1431d 1437d
KCSAN: data-race in event_sched_in / perf_mmap (3) perf 6 1 1436d 1436d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (6) perf 6 2 1436d 1445d
KCSAN: data-race in arch_perf_update_userpage / perf_mmap perf 6 2 1445d 1457d
general protection fault in perf_tp_event (3) perf 2 9 1537d 1621d
KCSAN: data-race in __perf_event_read / perf_mmap perf 6 1 1455d 1455d
KMSAN: uninit-value in __perf_event_task_sched_in perf 7 1 1531d 1531d
KCSAN: data-race in __perf_event_read_value / event_sched_out (2) perf 6 3 1476d 1515d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (5) perf 6 3 1482d 1489d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (4) perf 6 1 1484d 1484d
KCSAN: data-race in event_sched_in / perf_mmap (2) perf 6 1 1485d 1485d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (4) perf 6 1 1496d 1496d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event perf 6 1 1497d 1497d
KMSAN: uninit-value in build_id_parse (2) perf 7 3 1554d 1565d
KCSAN: data-race in event_sched_out / perf_mmap perf 6 7 1503d 1586d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (2) perf 6 1 1505d 1505d
INFO: rcu detected stall in mrp_periodic_timer (3) perf 1 1 1525d 1525d
INFO: rcu detected stall in estimation_timer (2) perf 1 1 1531d 1531d
INFO: rcu detected stall in __mod_timer (3) perf 1 24 1500d 1726d
INFO: rcu detected stall in sys_sendto (5) perf 1 7 1500d 1621d
INFO: task hung in uprobe_start_dup_mmap (2) perf trace 1 4 1518d 1533d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (7) perf 6 2 1527d 1533d
INFO: rcu detected stall in read_iter_zero (3) perf 1 1 1583d 1583d
INFO: rcu detected stall in sys_io_submit perf 1 1 1584d 1584d
general protection fault in perf_cgroup_switch perf 2 1 1593d 1589d
possible deadlock in register_for_each_vma (2) trace perf 4 1 1627d 1625d
KCSAN: data-race in detach_pid / perf_event_switch_output (2) perf 6 1 1543d 1543d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (3) perf 6 1 1548d 1548d
KCSAN: data-race in __perf_event_read_value / event_sched_out perf 6 6 1553d 1628d
INFO: rcu detected stall in tipc_sendstream perf 1 1 1595d 1594d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (6) perf 6 1 1576d 1576d
INFO: task hung in perf_event_alloc perf 1 1 1634d 1634d
KCSAN: data-race in event_sched_in / perf_mmap perf 6 1 1579d 1573d
KCSAN: data-race in ctx_sched_out / perf_mmap perf 6 2 1590d 1596d
INFO: rcu detected stall in perf_event_open (2) perf 1 1 1625d 1625d
KCSAN: data-race in __perf_event_read_value / event_sched_in perf 6 2 1600d 1614d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event perf 6 1 1617d 1617d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (5) perf 6 1 1628d 1628d
KCSAN: data-race in detach_pid / perf_event_switch_output perf 6 16 1628d 1779d
WARNING in ctx_sched_in perf -1 33 1726d 1790d
INFO: task hung in perf_event_exit_task perf 1 25 1698d 1798d
KCSAN: data-race in copy_page_from_iter_atomic / uprobe_write_opcode trace perf 6 1 1645d 1645d
WARNING in __perf_install_in_context perf -1 6 1735d 1758d
WARNING in task_ctx_sched_out perf -1 2 1739d 1758d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (4) perf 6 1 1654d 1654d
INFO: rcu detected stall in read_iter_zero (2) perf 1 1 1720d 1720d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (3) perf 6 1 1667d 1667d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (4) perf 6 1 1677d 1677d
WARNING in ctx_sched_out perf -1 2 1791d 1758d
KMSAN: uninit-value in build_id_parse perf 7 3 1768d 1779d
possible deadlock in register_for_each_vma perf trace 4 1 1814d 1810d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (3) perf 6 2 1742d 1753d
general protection fault in perf_tp_event (2) perf 2 109 1833d 2073d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (2) perf 6 1 1765d 1765d
KCSAN: data-race in __perf_event_header__init_id / detach_pid perf 6 1 1786d 1786d
KCSAN: data-race in find_get_context / find_get_context perf 6 1 1787d 1787d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (2) perf 6 1 1789d 1789d
BUG: KFENCE: use-after-free read in find_uprobe perf trace -1 1 1862d 1862d
WARNING: refcount bug in uprobe_mmap trace perf 13 1 1863d 1862d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (3) perf 6 1 1867d 1867d
KCSAN: data-race in event_sched_in / perf_event_update_userpage perf 6 1 1871d 1871d
INFO: rcu detected stall in __do_sys_bpf perf 1 1 1972d 1972d
INFO: rcu detected stall in __do_sys_perf_event_open perf 1 2 2013d 2016d
KCSAN: data-race in event_sched_out / perf_event_update_userpage perf 6 1 1959d 1959d
KMSAN: uninit-value in x86_pmu_stop perf 7 1 2019d 2019d
BUG: unable to handle kernel paging request in perf_misc_flags perf 8 1 2020d 2016d
BUG: corrupted list in event_sched_out perf 8 1 2023d 2019d
general protection fault in perf_tp_event_match (2) perf 2 356 2077d 2406d
BUG: unable to handle kernel NULL pointer dereference in perf_misc_flags perf 10 2 2062d 2072d
BUG: soft lockup in perf_release (2) perf 1 2 2073d 2069d
general protection fault in msr_event_init perf 2 1 2075d 2071d
INFO: rcu detected stall in __se_sys_perf_event_open perf 1 1 2076d 2076d
general protection fault in perf_misc_flags perf 2 7 1990d 1998d
KCSAN: data-race in perf_event_exit_task / perf_event_exit_task perf 6 1 2022d 2022d
INFO: rcu detected stall in sys_sendto (4) perf 1 1 2078d 2078d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (2) perf 6 1 2059d 2059d
WARNING: locking bug in __perf_event_task_sched_in perf 4 2 2163d 2197d
KASAN: out-of-bounds Read in perf_assign_events perf 17 1 2147d 2143d
KCSAN: data-race in perf_event_wakeup / perf_event_wakeup perf 6 1 2126d 2126d
BUG: unable to handle kernel NULL pointer dereference in smp_call_function_many_cond perf 10 1 2095d 2095d
KCSAN: data-race in calc_timer_values / perf_event_update_time perf 6 8 2199d 2311d
KCSAN: data-race in __change_pid / __task_pid_nr_ns (2) perf 6 1 2220d 2220d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage perf 6 4 2232d 2317d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (2) perf 6 1 2274d 2274d
KCSAN: data-race in mmap_region / register_for_each_vma perf trace 6 1 2282d 2282d
INFO: rcu detected stall in sys_perf_event_open (4) perf 1 1 2253d 2253d
INFO: rcu detected stall in sys_perf_event_open (3) perf 1 1 2254d 2254d
INFO: rcu detected stall in sys_perf_event_open (2) perf 1 8 2288d 2290d
INFO: task hung in perf_ioctl perf 1 1 2292d 2292d
INFO: task hung in perf_event_release_kernel perf 1 18 2292d 2293d
KCSAN: data-race in ns_capable_common / prepare_signal perf 6 1 2315d 2315d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage perf 6 1 2318d 2318d
general protection fault in perf_tp_event perf 2 423 2444d 2867d
KASAN: use-after-free Read in _free_event perf 19 1 2453d 2451d
INFO: task hung in uprobe_start_dup_mmap trace perf 1 196 2528d 2742d
INFO: task hung in register_for_each_vma perf trace 1 1 2595d 2595d
possible deadlock in uprobe_clear_state perf trace 4 2 2608d 2645d
possible deadlock in percpu_down_write perf trace 4 2 2616d 2704d
possible deadlock in fs_reclaim_acquire perf trace 4 1 2621d 2619d
KASAN: slab-out-of-bounds Read in perf_exclude_event perf 17 5 2640d 2628d
general protection fault in uprobe_mmap perf trace 2 1 2662d 2660d
INFO: rcu detected stall in sys_perf_event_open perf 1 1 2733d 2731d
INFO: task hung in __do_sys_perf_event_open perf 1 1 2798d 2795d
general protection fault in perf_tp_event_match perf 2 1 2800d 2800d
possible deadlock in perf_event_for_each_child perf 4 135 2959d 2968d
possible deadlock in perf_event_ctx_lock_nested perf 4 8914 3007d 3056d
INFO: rcu detected stall in smp_call_function_many perf 1 138 2751d 2907d
BUG: soft lockup in __msan_metadata_ptr_for_load_4 perf 1 243 2739d 2800d
general protection fault in __perf_event_task_sched_in perf 2 1 2806d 2806d
BUG: soft lockup in event_function_call perf 1 25 2745d 2797d
INFO: rcu detected stall in event_function_call perf 1 5 2752d 2791d
INFO: task hung in rwsem_down_read_failed perf 1 8 2957d 3004d