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 128d 142d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (5) perf 6 3 136d 153d
BUG: soft lockup in __sk_destruct perf 1 1 217d 217d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (4) perf 6 1 252d 252d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (3) perf 6 4 348d 398d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (4) perf 6 2 358d 362d
KCSAN: data-race in _free_event / perf_pending_task (2) perf 6 9 360d 472d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (9) perf 6 1 429d 429d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state (2) perf 6 1 467d 467d
KASAN: slab-use-after-free Read in filter_chain perf trace 19 13 504d 562d
KASAN: slab-use-after-free Read in uprobe_mmap perf trace 19 67 506d 553d
WARNING in free_event perf -1 C unreliable done 1 568d 766d
KASAN: slab-use-after-free Read in uprobe_unregister trace perf 19 C unreliable 5 528d 526d
KCSAN: data-race in _free_event / perf_pending_task perf 6 6 517d 547d
KCSAN: data-race in __change_pid / perf_event_switch_output (3) perf 6 1 544d 544d
BUG: soft lockup in sys_perf_event_open perf 1 1 608d 604d
BUG: using __this_cpu_add() in preemptible code in graph_lock perf 4 1 651d 647d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (3) perf 6 2 587d 597d
WARNING: suspicious RCU usage in __schedule (2) perf 4 1 654d 650d
KCSAN: data-race in __perf_event_read_value / perf_event_set_state perf 6 1 607d 607d
KCSAN: data-race in __change_pid / perf_event_switch_output (2) perf 6 1 616d 616d
KASAN: use-after-free Read in refcount_sub_and_test_checked (2) perf 19 syz done error 10 2177d 2584d
KCSAN: data-race in __change_pid / perf_event_switch_output perf 6 1 670d 670d
WARNING in ctx_sched_in (2) perf -1 1 742d 738d
KCSAN: data-race in perf_event_set_state / perf_event_update_userpage perf 6 1 695d 695d
KCSAN: data-race in detach_pid / perf_event_switch_output (4) perf 6 1 712d 712d
KCSAN: data-race in perf_event_set_state / perf_event_update_time (2) perf 6 1 736d 736d
KCSAN: data-race in ctx_sched_out / perf_event_update_time perf 6 1 807d 780d
INFO: task hung in perf_event_free_task perf 1 C done error 40 872d 2380d
KCSAN: data-race in detach_pid / perf_event_switch_output (3) perf 6 1 866d 866d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (8) perf 6 2 924d 940d
KCSAN: data-race in perf_event_set_state / perf_event_update_time perf 6 2 934d 942d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (4) perf 6 2 947d 948d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (5) perf 6 2 955d 957d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (4) perf 6 1 1021d 1021d
INFO: task can't die in perf_event_free_task perf 1 syz unreliable 6 1197d 1896d
WARNING: held lock freed in uprobe_unregister trace perf 4 C error 3 1818d 1821d
KCSAN: data-race in event_sched_out / perf_event_update_time (4) perf 6 1 1130d 1130d
KCSAN: data-race in __perf_event_read_value / event_sched_out (6) perf 6 1 1154d 1154d
INFO: rcu detected stall in __perf_sw_event perf 1 syz done error 99 1728d 2547d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (7) perf 6 3 1172d 1223d
KCSAN: data-race in __perf_event_read_value / event_sched_out (5) perf 6 5 1192d 1249d
possible deadlock in down_trylock (2) perf 4 C error error 17 1375d 2645d
KCSAN: data-race in event_sched_out / perf_event_update_time (3) perf 6 1 1232d 1232d
possible deadlock in perf_event_ctx_lock_nested (2) perf 4 syz done 12 1561d 1718d
INFO: rcu detected stall in inet_sendmsg (3) perf 1 syz error error 68 1374d 2012d
KCSAN: data-race in event_sched_out / perf_event_update_time (2) perf 6 1 1267d 1267d
WARNING in add_event_to_ctx perf -1 C done done 7 2402d 2414d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (3) perf 6 1 1278d 1278d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (3) perf 6 1 1303d 1303d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (5) perf 6 1 1315d 1315d
KCSAN: data-race in __perf_event_read_value / event_sched_out (4) perf 6 1 1315d 1315d
KCSAN: data-race in event_sched_out / perf_event_update_time perf 6 2 1356d 1371d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event (2) perf 6 1 1368d 1368d
KCSAN: data-race in __perf_event_read_value / event_sched_out (3) perf 6 2 1377d 1394d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (5) perf 6 2 1390d 1396d
KCSAN: data-race in event_sched_in / perf_mmap (3) perf 6 1 1395d 1395d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (6) perf 6 2 1396d 1404d
KCSAN: data-race in arch_perf_update_userpage / perf_mmap perf 6 2 1404d 1417d
general protection fault in perf_tp_event (3) perf 2 9 1497d 1581d
KCSAN: data-race in __perf_event_read / perf_mmap perf 6 1 1414d 1414d
KMSAN: uninit-value in __perf_event_task_sched_in perf 7 1 1490d 1490d
KCSAN: data-race in __perf_event_read_value / event_sched_out (2) perf 6 3 1435d 1474d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (5) perf 6 3 1442d 1449d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (4) perf 6 1 1443d 1443d
KCSAN: data-race in event_sched_in / perf_mmap (2) perf 6 1 1444d 1444d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (4) perf 6 1 1455d 1455d
KCSAN: data-race in __perf_event_overflow / perf_event_exit_event perf 6 1 1456d 1456d
KMSAN: uninit-value in build_id_parse (2) perf 7 3 1514d 1525d
KCSAN: data-race in event_sched_out / perf_mmap perf 6 7 1462d 1546d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event (2) perf 6 1 1464d 1464d
INFO: rcu detected stall in mrp_periodic_timer (3) perf 1 1 1485d 1485d
INFO: rcu detected stall in estimation_timer (2) perf 1 1 1490d 1490d
INFO: rcu detected stall in __mod_timer (3) perf 1 24 1459d 1685d
INFO: rcu detected stall in sys_sendto (5) perf 1 7 1459d 1580d
INFO: task hung in uprobe_start_dup_mmap (2) perf trace 1 4 1477d 1492d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (7) perf 6 2 1486d 1493d
INFO: rcu detected stall in read_iter_zero (3) perf 1 1 1543d 1543d
INFO: rcu detected stall in sys_io_submit perf 1 1 1544d 1544d
general protection fault in perf_cgroup_switch perf 2 1 1552d 1548d
possible deadlock in register_for_each_vma (2) trace perf 4 1 1587d 1584d
KCSAN: data-race in detach_pid / perf_event_switch_output (2) perf 6 1 1502d 1502d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (3) perf 6 1 1508d 1508d
KCSAN: data-race in __perf_event_read_value / event_sched_out perf 6 6 1512d 1587d
INFO: rcu detected stall in tipc_sendstream perf 1 1 1554d 1554d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (6) perf 6 1 1536d 1536d
INFO: task hung in perf_event_alloc perf 1 1 1593d 1593d
KCSAN: data-race in event_sched_in / perf_mmap perf 6 1 1539d 1532d
KCSAN: data-race in ctx_sched_out / perf_mmap perf 6 2 1549d 1555d
INFO: rcu detected stall in perf_event_open (2) perf 1 1 1584d 1584d
KCSAN: data-race in __perf_event_read_value / event_sched_in perf 6 2 1559d 1573d
KCSAN: data-race in perf_event_exit_event / perf_event_exit_event perf 6 1 1577d 1577d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (5) perf 6 1 1587d 1587d
KCSAN: data-race in detach_pid / perf_event_switch_output perf 6 16 1587d 1738d
WARNING in ctx_sched_in perf -1 33 1685d 1749d
INFO: task hung in perf_event_exit_task perf 1 25 1657d 1758d
KCSAN: data-race in copy_page_from_iter_atomic / uprobe_write_opcode trace perf 6 1 1605d 1605d
WARNING in __perf_install_in_context perf -1 6 1695d 1718d
WARNING in task_ctx_sched_out perf -1 2 1698d 1717d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (4) perf 6 1 1613d 1613d
INFO: rcu detected stall in read_iter_zero (2) perf 1 1 1679d 1679d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (3) perf 6 1 1627d 1627d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (4) perf 6 1 1637d 1637d
WARNING in ctx_sched_out perf -1 2 1751d 1718d
KMSAN: uninit-value in build_id_parse perf 7 3 1727d 1738d
possible deadlock in register_for_each_vma perf trace 4 1 1774d 1770d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (3) perf 6 2 1701d 1712d
general protection fault in perf_tp_event (2) perf 2 109 1792d 2033d
KCSAN: data-race in event_sched_in / perf_event_update_userpage (2) perf 6 1 1724d 1724d
KCSAN: data-race in __perf_event_header__init_id / detach_pid perf 6 1 1745d 1745d
KCSAN: data-race in find_get_context / find_get_context perf 6 1 1747d 1747d
KCSAN: data-race in event_sched_out / perf_event_update_userpage (2) perf 6 1 1748d 1748d
BUG: KFENCE: use-after-free read in find_uprobe perf trace -1 1 1822d 1822d
WARNING: refcount bug in uprobe_mmap trace perf 13 1 1822d 1822d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (3) perf 6 1 1827d 1827d
KCSAN: data-race in event_sched_in / perf_event_update_userpage perf 6 1 1830d 1830d
INFO: rcu detected stall in __do_sys_bpf perf 1 1 1931d 1931d
INFO: rcu detected stall in __do_sys_perf_event_open perf 1 2 1973d 1975d
KCSAN: data-race in event_sched_out / perf_event_update_userpage perf 6 1 1918d 1918d
KMSAN: uninit-value in x86_pmu_stop perf 7 1 1979d 1979d
BUG: unable to handle kernel paging request in perf_misc_flags perf 8 1 1980d 1976d
BUG: corrupted list in event_sched_out perf 8 1 1982d 1978d
general protection fault in perf_tp_event_match (2) perf 2 356 2037d 2365d
BUG: unable to handle kernel NULL pointer dereference in perf_misc_flags perf 10 2 2021d 2031d
BUG: soft lockup in perf_release (2) perf 1 2 2032d 2028d
general protection fault in msr_event_init perf 2 1 2034d 2030d
INFO: rcu detected stall in __se_sys_perf_event_open perf 1 1 2035d 2035d
general protection fault in perf_misc_flags perf 2 7 1950d 1958d
KCSAN: data-race in perf_event_exit_task / perf_event_exit_task perf 6 1 1981d 1981d
INFO: rcu detected stall in sys_sendto (4) perf 1 1 2038d 2038d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage (2) perf 6 1 2018d 2018d
WARNING: locking bug in __perf_event_task_sched_in perf 4 2 2122d 2157d
KASAN: out-of-bounds Read in perf_assign_events perf 17 1 2106d 2102d
KCSAN: data-race in perf_event_wakeup / perf_event_wakeup perf 6 1 2085d 2085d
BUG: unable to handle kernel NULL pointer dereference in smp_call_function_many_cond perf 10 1 2055d 2055d
KCSAN: data-race in calc_timer_values / perf_event_update_time perf 6 8 2158d 2271d
KCSAN: data-race in __change_pid / __task_pid_nr_ns (2) perf 6 1 2179d 2179d
KCSAN: data-race in perf_event_update_userpage / perf_event_update_userpage perf 6 4 2191d 2277d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage (2) perf 6 1 2234d 2234d
KCSAN: data-race in mmap_region / register_for_each_vma perf trace 6 1 2241d 2241d
INFO: rcu detected stall in sys_perf_event_open (4) perf 1 1 2213d 2213d
INFO: rcu detected stall in sys_perf_event_open (3) perf 1 1 2213d 2213d
INFO: rcu detected stall in sys_perf_event_open (2) perf 1 8 2248d 2249d
INFO: task hung in perf_ioctl perf 1 1 2251d 2251d
INFO: task hung in perf_event_release_kernel perf 1 18 2251d 2253d
KCSAN: data-race in ns_capable_common / prepare_signal perf 6 1 2275d 2275d
KCSAN: data-race in arch_perf_update_userpage / arch_perf_update_userpage perf 6 1 2277d 2277d
general protection fault in perf_tp_event perf 2 423 2403d 2827d
KASAN: use-after-free Read in _free_event perf 19 1 2412d 2411d
INFO: task hung in uprobe_start_dup_mmap trace perf 1 196 2487d 2701d
INFO: task hung in register_for_each_vma perf trace 1 1 2554d 2554d
possible deadlock in uprobe_clear_state perf trace 4 2 2567d 2605d
possible deadlock in percpu_down_write perf trace 4 2 2575d 2663d
possible deadlock in fs_reclaim_acquire perf trace 4 1 2580d 2579d
KASAN: slab-out-of-bounds Read in perf_exclude_event perf 17 5 2599d 2588d
general protection fault in uprobe_mmap perf trace 2 1 2622d 2620d
INFO: rcu detected stall in sys_perf_event_open perf 1 1 2692d 2690d
INFO: task hung in __do_sys_perf_event_open perf 1 1 2757d 2754d
general protection fault in perf_tp_event_match perf 2 1 2759d 2759d
possible deadlock in perf_event_for_each_child perf 4 135 2919d 2928d
possible deadlock in perf_event_ctx_lock_nested perf 4 8914 2966d 3016d
INFO: rcu detected stall in smp_call_function_many perf 1 138 2711d 2866d
BUG: soft lockup in __msan_metadata_ptr_for_load_4 perf 1 243 2699d 2759d
general protection fault in __perf_event_task_sched_in perf 2 1 2765d 2765d
BUG: soft lockup in event_function_call perf 1 25 2705d 2757d
INFO: rcu detected stall in event_function_call perf 1 5 2711d 2750d
INFO: task hung in rwsem_down_read_failed perf 1 8 2917d 2964d