syzbot


Out of 167 bugs, 145 were automatically obsoleted (11 due to revoked reproducers), 22 were invalidated by users.
Applied filters: Label=subsystems:perf (drop)
Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported
KCSAN: data-race in perf_event_set_state / perf_event_update_time (5) perf 6 2 85d 98d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (5) perf 6 3 93d 110d
BUG: soft lockup in __sk_destruct perf 1 1 173d 173d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (4) perf 6 1 209d 209d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (3) perf 6 4 305d 355d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (4) perf 6 2 315d 319d
KCSAN: data-race in _free_event / perf_pending_task (2) perf 6 9 317d 429d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (9) perf 6 1 386d 386d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (2) perf 6 1 423d 423d
KASAN: slab-use-after-free Read in filter_chain trace perf 19 13 461d 519d
KASAN: slab-use-after-free Read in uprobe_mmap perf trace 19 67 463d 510d
WARNING in free_event perf -1 C unreliable done 1 525d 722d
KASAN: slab-use-after-free Read in uprobe_unregister perf trace 19 C unreliable 5 484d 483d
KCSAN: data-race in _free_event / perf_pending_task perf 6 6 473d 503d
KCSAN: data-race in __change_pid / perf_event_switch_output (3) perf 6 1 500d 500d
BUG: soft lockup in sys_perf_event_open perf 1 1 565d 561d
BUG: using __this_cpu_add() in preemptible code in graph_lock perf 4 1 607d 603d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (3) perf 6 2 543d 554d
WARNING: suspicious RCU usage in __schedule (2) perf 4 1 611d 607d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state perf 6 1 564d 564d
KCSAN: data-race in __change_pid / perf_event_switch_output (2) perf 6 1 573d 573d
KASAN: use-after-free Read in refcount_sub_and_test_checked (2) perf 19 syz done error 10 2134d 2540d
KCSAN: data-race in __change_pid / perf_event_switch_output perf 6 1 626d 626d
WARNING in ctx_sched_in (2) perf -1 1 698d 694d
KCSAN: data-race in perf_event_set_state / perf_event_update_userpage perf 6 1 651d 651d
KCSAN: data-race in detach_pid / perf_event_switch_output (4) perf 6 1 669d 669d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (2) perf 6 1 693d 693d
KCSAN: data-race in ctx_sched_out / perf_event_update_time perf 6 1 763d 737d
INFO: task hung in perf_event_free_task perf 1 C done error 40 828d 2337d
KCSAN: data-race in detach_pid / perf_event_switch_output (3) perf 6 1 823d 823d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (8) perf 6 2 881d 896d
KCSAN: data-race in perf_event_set_state / perf_event_update_time perf 6 2 891d 899d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (4) perf 6 2 903d 905d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (5) perf 6 2 912d 914d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (4) perf 6 1 978d 978d
INFO: task can't die in perf_event_free_task perf 1 syz unreliable 6 1153d 1853d
WARNING: held lock freed in uprobe_unregister perf trace 4 C error 3 1775d 1777d
KCSAN: data-race in event_sched_out / perf_event_update_time (4) perf 6 1 1087d 1087d
KCSAN: data-race in __perf_event_read_value / event_sched_out (6) perf 6 1 1111d 1111d
INFO: rcu detected stall in __perf_sw_event perf 1 syz done error 99 1685d 2504d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (7) perf 6 3 1129d 1180d
KCSAN: data-race in __perf_event_read_value / event_sched_out (5) perf 6 5 1148d 1206d
possible deadlock in down_trylock (2) perf 4 C error error 17 1331d 2602d
KCSAN: data-race in event_sched_out / perf_event_update_time (3) perf 6 1 1189d 1189d
possible deadlock in perf_event_ctx_lock_nested (2) perf 4 syz done 12 1517d 1674d
INFO: rcu detected stall in inet_sendmsg (3) perf 1 syz error error 68 1331d 1969d
KCSAN: data-race in event_sched_out / perf_event_update_time (2) perf 6 1 1224d 1224d
WARNING in add_event_to_ctx perf -1 C done done 7 2359d 2371d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (3) perf 6 1 1235d 1235d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (3) perf 6 1 1259d 1259d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (5) perf 6 1 1272d 1272d
KCSAN: data-race in __perf_event_read_value / event_sched_out (4) perf 6 1 1272d 1272d
KCSAN: data-race in event_sched_out / perf_event_update_time perf 6 2 1313d 1328d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (2) perf 6 1 1325d 1325d
KCSAN: data-race in __perf_event_read_value / event_sched_out (3) perf 6 2 1334d 1351d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (5) perf 6 2 1347d 1353d
KCSAN: data-race in event_sched_in / perf_mmap (3) perf 6 1 1352d 1352d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (6) perf 6 2 1352d 1361d
KCSAN: data-race in arch_perf_update_userpage / perf_mmap perf 6 2 1361d 1374d
general protection fault in perf_tp_event (3) perf 2 9 1453d 1537d
KCSAN: data-race in __perf_event_read / perf_mmap perf 6 1 1371d 1371d
KMSAN: uninit-value in __perf_event_task_sched_in perf 7 1 1447d 1447d
KCSAN: data-race in __perf_event_read_value / event_sched_out (2) perf 6 3 1392d 1431d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (5) perf 6 3 1399d 1405d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (4) perf 6 1 1400d 1400d
KCSAN: data-race in event_sched_in / perf_mmap (2) perf 6 1 1401d 1401d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (4) perf 6 1 1412d 1412d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event perf 6 1 1413d 1413d
KMSAN: uninit-value in build_id_parse (2) perf 7 3 1471d 1481d
KCSAN: data-race in event_sched_out / perf_mmap perf 6 7 1419d 1502d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (2) perf 6 1 1421d 1421d
INFO: rcu detected stall in mrp_periodic_timer (3) perf 1 1 1442d 1442d
INFO: rcu detected stall in estimation_timer (2) perf 1 1 1447d 1447d
INFO: rcu detected stall in __mod_timer (3) perf 1 24 1416d 1642d
INFO: rcu detected stall in sys_sendto (5) perf 1 7 1416d 1537d
INFO: task hung in uprobe_start_dup_mmap (2) perf trace 1 4 1434d 1449d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (7) perf 6 2 1443d 1449d
INFO: rcu detected stall in read_iter_zero (3) perf 1 1 1499d 1499d
INFO: rcu detected stall in sys_io_submit perf 1 1 1500d 1500d
general protection fault in perf_cgroup_switch perf 2 1 1509d 1505d
possible deadlock in register_for_each_vma (2) perf trace 4 1 1543d 1541d
KCSAN: data-race in detach_pid / perf_event_switch_output (2) perf 6 1 1459d 1459d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (3) perf 6 1 1465d 1465d
KCSAN: data-race in __perf_event_read_value / event_sched_out perf 6 6 1469d 1544d
INFO: rcu detected stall in tipc_sendstream perf 1 1 1511d 1511d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (6) perf 6 1 1492d 1492d
INFO: task hung in perf_event_alloc perf 1 1 1550d 1550d
KCSAN: data-race in event_sched_in / perf_mmap perf 6 1 1496d 1489d
KCSAN: data-race in ctx_sched_out / perf_mmap perf 6 2 1506d 1512d
INFO: rcu detected stall in perf_event_open (2) perf 1 1 1541d 1541d
KCSAN: data-race in __perf_event_read_value / event_sched_in perf 6 2 1516d 1530d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event perf 6 1 1533d 1533d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (5) perf 6 1 1544d 1544d
KCSAN: data-race in detach_pid / perf_event_switch_output perf 6 16 1544d 1695d
WARNING in ctx_sched_in perf -1 33 1642d 1706d
INFO: task hung in perf_event_exit_task perf 1 25 1614d 1714d
KCSAN: data-race in copy_page_from_iter_atomic / uprobe_write_opcode perf trace 6 1 1562d 1562d
WARNING in __perf_install_in_context perf -1 6 1652d 1674d
WARNING in task_ctx_sched_out perf -1 2 1655d 1674d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (4) perf 6 1 1570d 1570d
INFO: rcu detected stall in read_iter_zero (2) perf 1 1 1636d 1636d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (3) perf 6 1 1583d 1583d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (4) perf 6 1 1594d 1594d
WARNING in ctx_sched_out perf -1 2 1707d 1674d
KMSAN: uninit-value in build_id_parse perf 7 3 1684d 1695d
possible deadlock in register_for_each_vma perf trace 4 1 1730d 1726d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (3) perf 6 2 1658d 1669d
general protection fault in perf_tp_event (2) perf 2 109 1749d 1989d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (2) perf 6 1 1681d 1681d
KCSAN: data-race in __perf_event_header__init_id / detach_pid perf 6 1 1702d 1702d
KCSAN: data-race in find_get_context / find_get_context perf 6 1 1703d 1703d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (2) perf 6 1 1705d 1705d
BUG: KFENCE: use-after-free read in find_uprobe trace perf -1 1 1778d 1778d
WARNING: refcount bug in uprobe_mmap perf trace 13 1 1779d 1778d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (3) perf 6 1 1783d 1783d
KCSAN: data-race in event_sched_in / perf_event_update_userpage perf 6 1 1787d 1787d
INFO: rcu detected stall in __do_sys_bpf perf 1 1 1888d 1888d
INFO: rcu detected stall in __do_sys_perf_event_open perf 1 2 1929d 1932d
KCSAN: data-race in event_sched_out / perf_event_update_userpage perf 6 1 1875d 1875d
KMSAN: uninit-value in x86_pmu_stop perf 7 1 1935d 1935d
BUG: unable to handle kernel paging request in perf_misc_flags perf 8 1 1937d 1933d
BUG: corrupted list in event_sched_out perf 8 1 1939d 1935d
general protection fault in perf_tp_event_match (2) perf 2 356 1993d 2322d
BUG: unable to handle kernel NULL pointer dereference in perf_misc_flags perf 10 2 1978d 1988d
BUG: soft lockup in perf_release (2) perf 1 2 1989d 1985d
general protection fault in msr_event_init perf 2 1 1991d 1987d
INFO: rcu detected stall in __se_sys_perf_event_open perf 1 1 1992d 1992d
general protection fault in perf_misc_flags perf 2 7 1907d 1914d
KCSAN: data-race in perf_event_exit_task / perf_event_exit_task perf 6 1 1938d 1938d
INFO: rcu detected stall in sys_sendto (4) perf 1 1 1994d 1994d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (2) perf 6 1 1975d 1975d
WARNING: locking bug in __perf_event_task_sched_in perf 4 2 2079d 2113d
KASAN: out-of-bounds Read in perf_assign_events perf 17 1 2063d 2059d
KCSAN: data-race in perf_event_wakeup / perf_event_wakeup perf 6 1 2042d 2042d
BUG: unable to handle kernel NULL pointer dereference in smp_call_function_many_cond perf 10 1 2011d 2011d
KCSAN: data-race in calc_timer_values / perf_event_update_time perf 6 8 2115d 2227d
KCSAN: data-race in __change_pid / __task_pid_nr_ns (2) perf 6 1 2136d 2136d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage perf 6 4 2148d 2233d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (2) perf 6 1 2191d 2191d
KCSAN: data-race in mmap_region / register_for_each_vma perf trace 6 1 2198d 2198d
INFO: rcu detected stall in sys_perf_event_open (4) perf 1 1 2169d 2169d
INFO: rcu detected stall in sys_perf_event_open (3) perf 1 1 2170d 2170d
INFO: rcu detected stall in sys_perf_event_open (2) perf 1 8 2204d 2206d
INFO: task hung in perf_ioctl perf 1 1 2208d 2208d
INFO: task hung in perf_event_release_kernel perf 1 18 2208d 2209d
KCSAN: data-race in ns_capable_common / prepare_signal perf 6 1 2231d 2231d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage perf 6 1 2234d 2234d
general protection fault in perf_tp_event perf 2 423 2360d 2784d
KASAN: use-after-free Read in _free_event perf 19 1 2369d 2367d
INFO: task hung in uprobe_start_dup_mmap trace perf 1 196 2444d 2658d
INFO: task hung in register_for_each_vma perf trace 1 1 2511d 2511d
possible deadlock in uprobe_clear_state perf trace 4 2 2524d 2561d
possible deadlock in percpu_down_write perf trace 4 2 2532d 2620d
possible deadlock in fs_reclaim_acquire perf trace 4 1 2537d 2535d
KASAN: slab-out-of-bounds Read in perf_exclude_event perf 17 5 2556d 2545d
general protection fault in uprobe_mmap perf trace 2 1 2579d 2577d
INFO: rcu detected stall in sys_perf_event_open perf 1 1 2649d 2647d
INFO: task hung in __do_sys_perf_event_open perf 1 1 2714d 2711d
general protection fault in perf_tp_event_match perf 2 1 2716d 2716d
possible deadlock in perf_event_for_each_child perf 4 135 2875d 2884d
possible deadlock in perf_event_ctx_lock_nested perf 4 8914 2923d 2972d
INFO: rcu detected stall in smp_call_function_many perf 1 138 2667d 2823d
BUG: soft lockup in __msan_metadata_ptr_for_load_4 perf 1 243 2655d 2716d
general protection fault in __perf_event_task_sched_in perf 2 1 2722d 2722d
BUG: soft lockup in event_function_call perf 1 25 2662d 2713d
INFO: rcu detected stall in event_function_call perf 1 5 2668d 2707d
INFO: task hung in rwsem_down_read_failed perf 1 8 2873d 2920d