kauditd_printk_skb: 8 callbacks suppressed
audit: type=1804 audit(1560427154.740:344): pid=10809 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.0" name="/root/syzkaller-testdir755530723/syzkaller.OLHvvL/74/bus" dev="sda1" ino=17081 res=1
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=273721, q=68)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4295103315-4295092812), jiffies_till_next_fqs=1, root ->qsmask 0x0
syz-executor.0  R  running task    25296 10809   6288 0x00000000
Call Trace:
 <IRQ>
 sched_show_task kernel/sched/core.c:5297 [inline]
 sched_show_task.cold+0x292/0x30b kernel/sched/core.c:5272
 print_other_cpu_stall kernel/rcu/tree.c:1430 [inline]
 check_cpu_stall kernel/rcu/tree.c:1557 [inline]
 __rcu_pending kernel/rcu/tree.c:3293 [inline]
 rcu_pending kernel/rcu/tree.c:3336 [inline]
 rcu_check_callbacks.cold+0xaa1/0xd93 kernel/rcu/tree.c:2682
 update_process_times+0x32/0x80 kernel/time/timer.c:1636
 tick_sched_handle+0xa2/0x190 kernel/time/tick-sched.c:164
 tick_sched_timer+0x47/0x130 kernel/time/tick-sched.c:1274
 __run_hrtimer kernel/time/hrtimer.c:1398 [inline]
 __hrtimer_run_queues+0x33b/0xdd0 kernel/time/hrtimer.c:1460
 hrtimer_interrupt+0x314/0x770 kernel/time/hrtimer.c:1518
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1029 [inline]
 smp_apic_timer_interrupt+0x111/0x550 arch/x86/kernel/apic/apic.c:1054
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:869
 </IRQ>
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:23 [inline]
RIP: 0010:memcg_kmem_enabled include/linux/memcontrol.h:1295 [inline]
RIP: 0010:slab_pre_alloc_hook mm/slab.h:427 [inline]
RIP: 0010:slab_alloc mm/slab.c:3383 [inline]
RIP: 0010:kmem_cache_alloc+0x4f/0x700 mm/slab.c:3557
Code: 27 ba e5 ff 89 df e8 60 ba e5 ff 41 81 e4 00 00 20 00 0f 85 54 02 00 00 89 de 4c 89 ef e8 d9 18 f0 ff 85 c0 0f 85 67 02 00 00 <e9> 1d 01 00 00 4d 89 ef 4d 85 ff 0f 84 56 02 00 00 45 85 e4 0f 85
RSP: 0018:ffff8880992ef1f8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000600040 RCX: ffffc90005bb9000
RDX: 0000000000040000 RSI: ffffffff81a184d9 RDI: 0000000000000007
RBP: ffff8880992ef260 R08: ffff8880942d6480 R09: ffffed1015d04733
R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000200000
R13: ffff88821ae809c0 R14: 0000000000600040 R15: ffff88821608c490
 mb_cache_entry_create+0xc1/0x950 fs/mbcache.c:87
 ext4_xattr_block_cache_insert fs/ext4/xattr.c:2989 [inline]
 ext4_xattr_block_get fs/ext4/xattr.c:537 [inline]
 ext4_xattr_get+0x5ad/0xa00 fs/ext4/xattr.c:652
 ext4_xattr_security_get+0x32/0x40 fs/ext4/xattr_security.c:20
 __vfs_getxattr+0xee/0x150 fs/xattr.c:310
 cap_inode_need_killpriv+0x43/0x70 security/commoncap.c:307
 security_inode_need_killpriv+0x63/0xa0 security/security.c:801
 dentry_needs_remove_privs.part.0+0x24/0x80 fs/inode.c:1789
 dentry_needs_remove_privs fs/inode.c:1833 [inline]
 file_remove_privs+0x264/0x480 fs/inode.c:1824
 __generic_file_write_iter+0x15e/0x630 mm/filemap.c:3210
 ext4_file_write_iter+0x32b/0x1060 fs/ext4/file.c:266
 call_write_iter include/linux/fs.h:1820 [inline]
 do_iter_readv_writev+0x558/0x830 fs/read_write.c:681
 do_iter_write fs/read_write.c:960 [inline]
 do_iter_write+0x184/0x5f0 fs/read_write.c:941
 vfs_iter_write+0x77/0xb0 fs/read_write.c:973
 iter_file_splice_write+0x661/0xbd0 fs/splice.c:750
 do_splice_from fs/splice.c:852 [inline]
 direct_splice_actor+0x123/0x190 fs/splice.c:1019
 splice_direct_to_actor+0x2e7/0x890 fs/splice.c:974
 do_splice_direct+0x1da/0x2a0 fs/splice.c:1062
 do_sendfile+0x597/0xce0 fs/read_write.c:1447
 __do_sys_sendfile64 fs/read_write.c:1508 [inline]
 __se_sys_sendfile64 fs/read_write.c:1494 [inline]
 __x64_sys_sendfile64+0x1dd/0x220 fs/read_write.c:1494
 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4592c9
Code: fd b7 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0b81c75c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000004592c9
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000004
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 00008000fffffffe R11: 0000000000000246 R12: 00007f0b81c766d4
R13: 00000000004c689d R14: 00000000004db828 R15: 00000000ffffffff
rcu: rcu_preempt kthread starved for 10556 jiffies! g273721 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: RCU grace-period kthread stack dump:
rcu_preempt     R  running task    29008    10      2 0x80000000
Call Trace:
 context_switch kernel/sched/core.c:2826 [inline]
 __schedule+0x80d/0x1c70 kernel/sched/core.c:3474
 schedule+0x92/0x1c0 kernel/sched/core.c:3518
 schedule_timeout+0x4db/0xfc0 kernel/time/timer.c:1804
 rcu_gp_kthread+0xd5c/0x2190 kernel/rcu/tree.c:2202
 kthread+0x354/0x420 kernel/kthread.c:246
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415