[ 213.243017][ T41] audit: type=1400 audit(1592025006.664:41): avc: denied { map } for pid=10762 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '[localhost]:4486' (ECDSA) to the list of known hosts. [ 219.985971][ T41] audit: type=1400 audit(1592025013.454:42): avc: denied { map } for pid=10774 comm="syz-fuzzer" path="/syz-fuzzer" dev="sda1" ino=16525 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 220.155819][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 220.189500][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 220.218404][ T1172] CPU: 2 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 220.227389][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 220.227389][ T1172] Call Trace: [ 220.227389][ T1172] dump_stack+0x18f/0x20d [ 220.227389][ T1172] debug_smp_processor_id.cold+0x88/0x9b [ 220.227389][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 220.227389][ T1172] ? ext4_find_extent+0x81a/0xad0 [ 220.227389][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 220.227389][ T1172] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 220.227389][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 220.227389][ T1172] ? ext4_ext_release+0x10/0x10 [ 220.227389][ T1172] ? down_write_killable+0x170/0x170 [ 220.227389][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 220.227389][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 220.227389][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 220.227389][ T1172] ? debug_smp_processor_id+0x2f/0x185 [ 220.227389][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 220.227389][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 220.227389][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 220.227389][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 220.227389][ T1172] ? mark_lock+0x70/0xdd0 [ 220.227389][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 220.227389][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 220.227389][ T1172] ? do_writepages+0xfa/0x2a0 [ 220.227389][ T1172] do_writepages+0xfa/0x2a0 [ 220.227389][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 220.227389][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 220.227389][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 220.227389][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 220.227389][ T1172] ? collapse_file+0x35a2/0x4330 [ 220.227389][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 220.227389][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 220.227389][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 220.227389][ T1172] collapse_file+0x35ac/0x4330 [ 220.227389][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 220.227389][ T1172] khugepaged+0x3041/0x3fc0 [ 220.227389][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 220.227389][ T1172] ? lock_downgrade+0x840/0x840 [ 220.227389][ T1172] ? finish_wait+0x260/0x260 [ 220.227389][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 220.227389][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 220.227389][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 220.227389][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 220.227389][ T1172] kthread+0x3b5/0x4a0 [ 220.227389][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 220.227389][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 220.227389][ T1172] ret_from_fork+0x24/0x30 [ 221.680933][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 221.722891][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 221.751045][ T1172] CPU: 2 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 221.760562][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 221.760562][ T1172] Call Trace: [ 221.760562][ T1172] dump_stack+0x18f/0x20d [ 221.760562][ T1172] debug_smp_processor_id.cold+0x88/0x9b [ 221.760562][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 221.760562][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 221.760562][ T1172] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 221.760562][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 221.760562][ T1172] ? ext4_ext_release+0x10/0x10 [ 221.760562][ T1172] ? down_write_killable+0x170/0x170 [ 221.760562][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 221.760562][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 221.760562][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 221.760562][ T1172] ? debug_smp_processor_id+0x2f/0x185 [ 221.760562][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 221.760562][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 222.116250][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 222.116250][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 222.116250][ T1172] ? mark_lock+0x70/0xdd0 [ 222.116250][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 222.116250][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 222.116250][ T1172] ? do_writepages+0xfa/0x2a0 [ 222.116250][ T1172] do_writepages+0xfa/0x2a0 [ 222.116250][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 222.116250][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 222.116250][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 222.116250][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 222.116250][ T1172] ? collapse_file+0x35a2/0x4330 [ 222.116250][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 222.116250][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 222.116250][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 222.116250][ T1172] collapse_file+0x35ac/0x4330 [ 222.116250][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 222.116250][ T1172] khugepaged+0x3041/0x3fc0 [ 222.116250][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 222.116250][ T1172] ? lock_downgrade+0x840/0x840 [ 222.116250][ T1172] ? finish_wait+0x260/0x260 [ 222.116250][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 222.116250][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 222.116250][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 222.116250][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 222.116250][ T1172] kthread+0x3b5/0x4a0 [ 222.116250][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 222.116250][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 222.116250][ T1172] ret_from_fork+0x24/0x30 [ 222.934276][ T1172] BUG: using smp_processor_id() in preemptible [00000000] code: khugepaged/1172 [ 222.971292][ T1172] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 222.991348][ T1172] CPU: 2 PID: 1172 Comm: khugepaged Not tainted 5.7.0-syzkaller #0 [ 223.000927][ T1172] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 223.000927][ T1172] Call Trace: [ 223.000927][ T1172] dump_stack+0x18f/0x20d [ 223.000927][ T1172] debug_smp_processor_id.cold+0x88/0x9b [ 223.000927][ T1172] ext4_mb_new_blocks+0xa4d/0x3b70 [ 223.000927][ T1172] ? ext4_ext_search_right+0x2ca/0xb20 [ 223.000927][ T1172] ? ext4_ext_next_allocated_block+0x221/0x2d0 [ 223.000927][ T1172] ext4_ext_map_blocks+0x201b/0x33e0 [ 223.000927][ T1172] ? ext4_ext_release+0x10/0x10 [ 223.000927][ T1172] ? down_write_killable+0x170/0x170 [ 223.000927][ T1172] ? ext4_es_lookup_extent+0x41d/0xd10 [ 223.000927][ T1172] ext4_map_blocks+0x4cb/0x1640 [ 223.000927][ T1172] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 223.000927][ T1172] ? debug_smp_processor_id+0x2f/0x185 [ 223.000927][ T1172] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 223.000927][ T1172] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 223.000927][ T1172] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 223.000927][ T1172] ext4_writepages+0x1a7b/0x33c0 [ 223.000927][ T1172] ? mark_lock+0x70/0xdd0 [ 223.000927][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 223.000927][ T1172] ? __ext4_mark_inode_dirty+0x940/0x940 [ 223.000927][ T1172] ? do_writepages+0xfa/0x2a0 [ 223.000927][ T1172] do_writepages+0xfa/0x2a0 [ 223.000927][ T1172] ? page_writeback_cpu_online+0x10/0x10 [ 223.000927][ T1172] ? do_raw_spin_unlock+0x171/0x260 [ 223.000927][ T1172] ? _raw_spin_unlock+0x24/0x40 [ 223.000927][ T1172] __filemap_fdatawrite_range+0x2aa/0x390 [ 223.000927][ T1172] ? collapse_file+0x35a2/0x4330 [ 223.000927][ T1172] ? delete_from_page_cache_batch+0xeb0/0xeb0 [ 223.000927][ T1172] ? _raw_spin_unlock_irq+0x1f/0x80 [ 223.000927][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 223.000927][ T1172] collapse_file+0x35ac/0x4330 [ 223.000927][ T1172] ? collapse_huge_page+0x4350/0x4350 [ 223.000927][ T1172] khugepaged+0x3041/0x3fc0 [ 223.000927][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 223.000927][ T1172] ? lock_downgrade+0x840/0x840 [ 223.000927][ T1172] ? finish_wait+0x260/0x260 [ 223.000927][ T1172] ? _raw_spin_unlock_irqrestore+0x62/0xe0 [ 223.000927][ T1172] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 223.000927][ T1172] ? __kthread_parkme+0x13f/0x1e0 [ 223.000927][ T1172] ? collapse_pte_mapped_thp+0xbf0/0xbf0 [ 223.000927][ T1172] kthread+0x3b5/0x4a0 [ 223.000927][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 223.000927][ T1172] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 223.000927][ T1172] ret_from_fork+0x24/0x30