audit: type=1804 audit(2000000383.290:416): pid=28379 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir299395151/syzkaller.LL8Ze3/780/bus" dev="sda1" ino=16817 res=1 netlink: 'syz-executor.1': attribute type 5 has an invalid length. WARNING: CPU: 0 PID: 28392 at kernel/events/core.c:1833 perf_group_attach+0x3fd/0x4d0 kernel/events/core.c:1833 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 28392 Comm: syz-executor.2 Not tainted 4.19.37 #5 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x172/0x1f0 lib/dump_stack.c:113 panic+0x263/0x51d kernel/panic.c:185 __warn.cold+0x20/0x54 kernel/panic.c:540 report_bug+0x263/0x2b0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x204/0x360 arch/x86/kernel/traps.c:296 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:997 RIP: 0010:perf_group_attach+0x3fd/0x4d0 kernel/events/core.c:1833 Code: ff 48 8d 7b 10 48 89 f8 48 c1 e8 03 42 80 3c 28 00 75 57 48 8b 5b 10 48 83 eb 10 49 39 dc 75 d4 e9 20 ff ff ff e8 63 44 ec ff <0f> 0b e9 55 fd ff ff 48 c7 c7 a0 a0 b0 88 e8 f0 a5 22 00 e9 5b fc RSP: 0018:ffff8880ae807ea8 EFLAGS: 00010006 RAX: ffff8880a83d0180 RBX: ffff88804a0b5580 RCX: ffffffff817efff8 RDX: 0000000000010000 RSI: ffffffff817f031d RDI: ffff88804a0b5798 RBP: ffff8880ae807ed8 R08: ffff8880a83d0180 R09: ffffed1015d06402 R10: ffffed1015d06401 R11: ffff8880ae83200b R12: ffff88806353b400 R13: ffffe8ffffc13eb8 R14: 0000000000000000 R15: ffff8880ae832008 add_event_to_ctx kernel/events/core.c:2390 [inline] __perf_install_in_context+0x4b5/0x960 kernel/events/core.c:2531 remote_function kernel/events/core.c:87 [inline] remote_function+0x12b/0x1a0 kernel/events/core.c:67 flush_smp_call_function_queue+0x14a/0x500 kernel/smp.c:243 generic_smp_call_function_single_interrupt+0x13/0x2b kernel/smp.c:192 smp_call_function_single_interrupt+0xa3/0x460 arch/x86/kernel/smp.c:296 call_function_single_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:889 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:788 [inline] RIP: 0010:lock_acquire+0x1ea/0x3f0 kernel/locking/lockdep.c:3903 Code: 7c 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 c7 01 00 00 48 83 3d 6a 8a 1f 07 00 0f 84 3b 01 00 00 48 8b 7d c8 57 9d <0f> 1f 44 00 00 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 65 8b RSP: 0018:ffff888069f875f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff04 RAX: 1ffffffff10e4669 RBX: ffff8880a83d0180 RCX: 00000000955b532a RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff888069f87640 R08: 0000000000000000 R09: 0000000000000001 R10: ffff8880a83d0a28 R11: 23038a1d56de4744 R12: ffffffff8879d620 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000002 rcu_lock_acquire include/linux/rcupdate.h:244 [inline] rcu_read_lock+0x29/0x70 include/linux/rcupdate.h:629 lock_page_memcg+0x19/0x1d0 mm/memcontrol.c:1887 page_remove_file_rmap mm/rmap.c:1215 [inline] page_remove_rmap+0x53d/0x12c0 mm/rmap.c:1300 zap_pte_range mm/memory.c:1338 [inline] zap_pmd_range mm/memory.c:1440 [inline] zap_pud_range mm/memory.c:1469 [inline] zap_p4d_range mm/memory.c:1490 [inline] unmap_page_range+0xd80/0x1e70 mm/memory.c:1511 unmap_single_vma+0x19d/0x300 mm/memory.c:1556 unmap_vmas+0xae/0x180 mm/memory.c:1586 exit_mmap+0x2c2/0x530 mm/mmap.c:3097 __mmput kernel/fork.c:1001 [inline] mmput+0x15f/0x4c0 kernel/fork.c:1022 exit_mm kernel/exit.c:546 [inline] do_exit+0x838/0x2fa0 kernel/exit.c:863 do_group_exit+0x135/0x370 kernel/exit.c:979 get_signal+0x399/0x1d50 kernel/signal.c:2572 do_signal+0x95/0x1950 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f8d4f725cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000073bf08 RCX: 0000000000458da9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000073bf08 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000073bf0c R13: 00007ffe907bf70f R14: 00007f8d4f7269c0 R15: 000000000073bf0c Kernel Offset: disabled Rebooting in 86400 seconds..