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 113d 127d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (5) perf 6 3 121d 138d
BUG: soft lockup in __sk_destruct perf 1 1 202d 202d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (4) perf 6 1 237d 237d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (3) perf 6 4 333d 383d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (4) perf 6 2 343d 347d
KCSAN: data-race in _free_event / perf_pending_task (2) perf 6 9 345d 457d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (9) perf 6 1 414d 414d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (2) perf 6 1 452d 452d
KASAN: slab-use-after-free Read in filter_chain trace perf 19 13 489d 547d
KASAN: slab-use-after-free Read in uprobe_mmap perf trace 19 67 491d 538d
WARNING in free_event perf -1 C unreliable done 1 553d 751d
KASAN: slab-use-after-free Read in uprobe_unregister perf trace 19 C unreliable 5 513d 511d
KCSAN: data-race in _free_event / perf_pending_task perf 6 6 502d 532d
KCSAN: data-race in __change_pid / perf_event_switch_output (3) perf 6 1 529d 529d
BUG: soft lockup in sys_perf_event_open perf 1 1 593d 589d
BUG: using __this_cpu_add() in preemptible code in graph_lock perf 4 1 636d 632d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (3) perf 6 2 572d 582d
WARNING: suspicious RCU usage in __schedule (2) perf 4 1 639d 635d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state perf 6 1 592d 592d
KCSAN: data-race in __change_pid / perf_event_switch_output (2) perf 6 1 601d 601d
KASAN: use-after-free Read in refcount_sub_and_test_checked (2) perf 19 syz done error 10 2162d 2569d
KCSAN: data-race in __change_pid / perf_event_switch_output perf 6 1 655d 655d
WARNING in ctx_sched_in (2) perf -1 1 727d 723d
KCSAN: data-race in perf_event_set_state / perf_event_update_userpage perf 6 1 680d 680d
KCSAN: data-race in detach_pid / perf_event_switch_output (4) perf 6 1 697d 697d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (2) perf 6 1 721d 721d
KCSAN: data-race in ctx_sched_out / perf_event_update_time perf 6 1 792d 765d
INFO: task hung in perf_event_free_task perf 1 C done error 40 857d 2365d
KCSAN: data-race in detach_pid / perf_event_switch_output (3) perf 6 1 852d 852d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (8) perf 6 2 909d 925d
KCSAN: data-race in perf_event_set_state / perf_event_update_time perf 6 2 919d 927d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (4) perf 6 2 932d 933d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (5) perf 6 2 940d 942d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (4) perf 6 1 1006d 1006d
INFO: task can't die in perf_event_free_task perf 1 syz unreliable 6 1182d 1881d
WARNING: held lock freed in uprobe_unregister perf trace 4 C error 3 1803d 1806d
KCSAN: data-race in event_sched_out / perf_event_update_time (4) perf 6 1 1116d 1116d
KCSAN: data-race in __perf_event_read_value / event_sched_out (6) perf 6 1 1139d 1139d
INFO: rcu detected stall in __perf_sw_event perf 1 syz done error 99 1714d 2532d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (7) perf 6 3 1157d 1208d
KCSAN: data-race in __perf_event_read_value / event_sched_out (5) perf 6 5 1177d 1234d
possible deadlock in down_trylock (2) perf 4 C error error 17 1360d 2630d
KCSAN: data-race in event_sched_out / perf_event_update_time (3) perf 6 1 1217d 1217d
possible deadlock in perf_event_ctx_lock_nested (2) perf 4 syz done 12 1546d 1703d
INFO: rcu detected stall in inet_sendmsg (3) perf 1 syz error error 68 1359d 1997d
KCSAN: data-race in event_sched_out / perf_event_update_time (2) perf 6 1 1252d 1252d
WARNING in add_event_to_ctx perf -1 C done done 7 2388d 2400d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (3) perf 6 1 1263d 1263d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (3) perf 6 1 1288d 1288d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (5) perf 6 1 1300d 1300d
KCSAN: data-race in __perf_event_read_value / event_sched_out (4) perf 6 1 1300d 1300d
KCSAN: data-race in event_sched_out / perf_event_update_time perf 6 2 1341d 1356d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (2) perf 6 1 1353d 1353d
KCSAN: data-race in __perf_event_read_value / event_sched_out (3) perf 6 2 1362d 1379d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (5) perf 6 2 1375d 1381d
KCSAN: data-race in event_sched_in / perf_mmap (3) perf 6 1 1380d 1380d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (6) perf 6 2 1381d 1389d
KCSAN: data-race in arch_perf_update_userpage / perf_mmap perf 6 2 1389d 1402d
general protection fault in perf_tp_event (3) perf 2 9 1482d 1566d
KCSAN: data-race in __perf_event_read / perf_mmap perf 6 1 1399d 1399d
KMSAN: uninit-value in __perf_event_task_sched_in perf 7 1 1475d 1475d
KCSAN: data-race in __perf_event_read_value / event_sched_out (2) perf 6 3 1421d 1459d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (5) perf 6 3 1427d 1434d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (4) perf 6 1 1428d 1428d
KCSAN: data-race in event_sched_in / perf_mmap (2) perf 6 1 1429d 1429d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (4) perf 6 1 1441d 1441d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event perf 6 1 1442d 1442d
KMSAN: uninit-value in build_id_parse (2) perf 7 3 1499d 1510d
KCSAN: data-race in event_sched_out / perf_mmap perf 6 7 1447d 1531d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (2) perf 6 1 1449d 1449d
INFO: rcu detected stall in mrp_periodic_timer (3) perf 1 1 1470d 1470d
INFO: rcu detected stall in estimation_timer (2) perf 1 1 1475d 1475d
INFO: rcu detected stall in __mod_timer (3) perf 1 24 1444d 1670d
INFO: rcu detected stall in sys_sendto (5) perf 1 7 1444d 1565d
INFO: task hung in uprobe_start_dup_mmap (2) perf trace 1 4 1463d 1477d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (7) perf 6 2 1471d 1478d
INFO: rcu detected stall in read_iter_zero (3) perf 1 1 1528d 1528d
INFO: rcu detected stall in sys_io_submit perf 1 1 1529d 1529d
general protection fault in perf_cgroup_switch perf 2 1 1537d 1533d
possible deadlock in register_for_each_vma (2) perf trace 4 1 1572d 1569d
KCSAN: data-race in detach_pid / perf_event_switch_output (2) perf 6 1 1487d 1487d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (3) perf 6 1 1493d 1493d
KCSAN: data-race in __perf_event_read_value / event_sched_out perf 6 6 1497d 1572d
INFO: rcu detected stall in tipc_sendstream perf 1 1 1539d 1539d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (6) perf 6 1 1521d 1521d
INFO: task hung in perf_event_alloc perf 1 1 1578d 1578d
KCSAN: data-race in event_sched_in / perf_mmap perf 6 1 1524d 1517d
KCSAN: data-race in ctx_sched_out / perf_mmap perf 6 2 1534d 1540d
INFO: rcu detected stall in perf_event_open (2) perf 1 1 1569d 1569d
KCSAN: data-race in __perf_event_read_value / event_sched_in perf 6 2 1544d 1558d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event perf 6 1 1562d 1562d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (5) perf 6 1 1572d 1572d
KCSAN: data-race in detach_pid / perf_event_switch_output perf 6 16 1572d 1723d
WARNING in ctx_sched_in perf -1 33 1670d 1734d
INFO: task hung in perf_event_exit_task perf 1 25 1642d 1743d
KCSAN: data-race in copy_page_from_iter_atomic / uprobe_write_opcode perf trace 6 1 1590d 1590d
WARNING in __perf_install_in_context perf -1 6 1680d 1703d
WARNING in task_ctx_sched_out perf -1 2 1683d 1702d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (4) perf 6 1 1598d 1598d
INFO: rcu detected stall in read_iter_zero (2) perf 1 1 1664d 1664d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (3) perf 6 1 1612d 1612d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (4) perf 6 1 1622d 1622d
WARNING in ctx_sched_out perf -1 2 1736d 1703d
KMSAN: uninit-value in build_id_parse perf 7 3 1712d 1723d
possible deadlock in register_for_each_vma perf trace 4 1 1759d 1755d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (3) perf 6 2 1686d 1697d
general protection fault in perf_tp_event (2) perf 2 109 1777d 2018d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (2) perf 6 1 1709d 1709d
KCSAN: data-race in __perf_event_header__init_id / detach_pid perf 6 1 1731d 1731d
KCSAN: data-race in find_get_context / find_get_context perf 6 1 1732d 1732d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (2) perf 6 1 1733d 1733d
BUG: KFENCE: use-after-free read in find_uprobe trace perf -1 1 1807d 1807d
WARNING: refcount bug in uprobe_mmap perf trace 13 1 1807d 1807d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (3) perf 6 1 1812d 1812d
KCSAN: data-race in event_sched_in / perf_event_update_userpage perf 6 1 1815d 1815d
INFO: rcu detected stall in __do_sys_bpf perf 1 1 1916d 1916d
INFO: rcu detected stall in __do_sys_perf_event_open perf 1 2 1958d 1960d
KCSAN: data-race in event_sched_out / perf_event_update_userpage perf 6 1 1903d 1903d
KMSAN: uninit-value in x86_pmu_stop perf 7 1 1964d 1964d
BUG: unable to handle kernel paging request in perf_misc_flags perf 8 1 1965d 1961d
BUG: corrupted list in event_sched_out perf 8 1 1967d 1963d
general protection fault in perf_tp_event_match (2) perf 2 356 2022d 2350d
BUG: unable to handle kernel NULL pointer dereference in perf_misc_flags perf 10 2 2006d 2016d
BUG: soft lockup in perf_release (2) perf 1 2 2017d 2013d
general protection fault in msr_event_init perf 2 1 2019d 2015d
INFO: rcu detected stall in __se_sys_perf_event_open perf 1 1 2020d 2020d
general protection fault in perf_misc_flags perf 2 7 1935d 1943d
KCSAN: data-race in perf_event_exit_task / perf_event_exit_task perf 6 1 1966d 1966d
INFO: rcu detected stall in sys_sendto (4) perf 1 1 2023d 2023d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (2) perf 6 1 2003d 2003d
WARNING: locking bug in __perf_event_task_sched_in perf 4 2 2107d 2142d
KASAN: out-of-bounds Read in perf_assign_events perf 17 1 2091d 2087d
KCSAN: data-race in perf_event_wakeup / perf_event_wakeup perf 6 1 2071d 2071d
BUG: unable to handle kernel NULL pointer dereference in smp_call_function_many_cond perf 10 1 2040d 2040d
KCSAN: data-race in calc_timer_values / perf_event_update_time perf 6 8 2143d 2256d
KCSAN: data-race in __change_pid / __task_pid_nr_ns (2) perf 6 1 2164d 2164d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage perf 6 4 2176d 2262d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (2) perf 6 1 2219d 2219d
KCSAN: data-race in mmap_region / register_for_each_vma perf trace 6 1 2226d 2226d
INFO: rcu detected stall in sys_perf_event_open (4) perf 1 1 2198d 2198d
INFO: rcu detected stall in sys_perf_event_open (3) perf 1 1 2198d 2198d
INFO: rcu detected stall in sys_perf_event_open (2) perf 1 8 2233d 2234d
INFO: task hung in perf_ioctl perf 1 1 2236d 2236d
INFO: task hung in perf_event_release_kernel perf 1 18 2237d 2238d
KCSAN: data-race in ns_capable_common / prepare_signal perf 6 1 2260d 2260d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage perf 6 1 2263d 2262d
general protection fault in perf_tp_event perf 2 423 2388d 2812d
KASAN: use-after-free Read in _free_event perf 19 1 2397d 2396d
INFO: task hung in uprobe_start_dup_mmap trace perf 1 196 2472d 2686d
INFO: task hung in register_for_each_vma perf trace 1 1 2539d 2539d
possible deadlock in uprobe_clear_state perf trace 4 2 2552d 2590d
possible deadlock in percpu_down_write perf trace 4 2 2560d 2648d
possible deadlock in fs_reclaim_acquire perf trace 4 1 2565d 2564d
KASAN: slab-out-of-bounds Read in perf_exclude_event perf 17 5 2584d 2573d
general protection fault in uprobe_mmap perf trace 2 1 2607d 2605d
INFO: rcu detected stall in sys_perf_event_open perf 1 1 2677d 2675d
INFO: task hung in __do_sys_perf_event_open perf 1 1 2742d 2740d
general protection fault in perf_tp_event_match perf 2 1 2744d 2744d
possible deadlock in perf_event_for_each_child perf 4 135 2904d 2913d
possible deadlock in perf_event_ctx_lock_nested perf 4 8914 2951d 3001d
INFO: rcu detected stall in smp_call_function_many perf 1 138 2696d 2851d
BUG: soft lockup in __msan_metadata_ptr_for_load_4 perf 1 243 2684d 2744d
general protection fault in __perf_event_task_sched_in perf 2 1 2750d 2750d
BUG: soft lockup in event_function_call perf 1 25 2690d 2742d
INFO: rcu detected stall in event_function_call perf 1 5 2697d 2735d
INFO: task hung in rwsem_down_read_failed perf 1 8 2902d 2949d