Warning: Permanently added '[localhost]:62919' (ECDSA) to the list of known hosts. [ 91.387040][ T39] audit: type=1400 audit(1592067058.208:42): avc: denied { map } for pid=8778 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 2020/06/13 16:50:58 fuzzer started 2020/06/13 16:50:58 connecting to host at 10.0.2.10:32839 2020/06/13 16:50:58 checking machine... 2020/06/13 16:50:58 checking revisions... 2020/06/13 16:50:58 testing simple program... [ 91.700392][ T39] audit: type=1400 audit(1592067058.518:43): avc: denied { integrity } for pid=8778 comm="syz-fuzzer" lockdown_reason="debugfs access" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=lockdown permissive=1 [ 91.735991][ T39] audit: type=1400 audit(1592067058.518:44): avc: denied { map } for pid=8778 comm="syz-fuzzer" path="/sys/kernel/debug/kcov" dev="debugfs" ino=24621 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 [ 92.260517][ T8784] BUG: using smp_processor_id() in preemptible [00000000] code: syz-fuzzer/8784 [ 92.272384][ T8784] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.282220][ T8784] CPU: 2 PID: 8784 Comm: syz-fuzzer Not tainted 5.7.0-syzkaller #0 [ 92.291933][ T8784] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 92.291933][ T8784] Call Trace: [ 92.291933][ T8784] dump_stack+0x18f/0x20d [ 92.291933][ T8784] debug_smp_processor_id.cold+0x88/0x9b [ 92.291933][ T8784] ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.291933][ T8784] ? ext4_ext_search_right+0x2ca/0xb20 [ 92.291933][ T8784] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 92.291933][ T8784] ext4_ext_map_blocks+0x201b/0x33e0 [ 92.291933][ T8784] ? ext4_ext_release+0x10/0x10 [ 92.291933][ T8784] ? down_write_killable+0x170/0x170 [ 92.291933][ T8784] ? ext4_es_lookup_extent+0x41d/0xd10 [ 92.291933][ T8784] ext4_map_blocks+0x4cb/0x1640 [ 92.291933][ T8784] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 92.291933][ T8784] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 92.291933][ T8784] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 92.291933][ T8784] ? __brelse+0x84/0xa0 [ 92.291933][ T8784] ? __ext4_new_inode+0x144/0x55e0 [ 92.291933][ T8784] ext4_getblk+0xad/0x520 [ 92.291933][ T8784] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 92.291933][ T8784] ? ext4_free_inode+0x1700/0x1700 [ 92.291933][ T8784] ext4_bread+0x7c/0x380 [ 92.291933][ T8784] ? ext4_getblk+0x520/0x520 [ 92.291933][ T8784] ? dquot_get_next_dqblk+0x180/0x180 [ 92.291933][ T8784] ext4_append+0x153/0x360 [ 92.291933][ T8784] ext4_mkdir+0x5e0/0xdf0 [ 92.291933][ T8784] ? ext4_rmdir+0xde0/0xde0 [ 92.291933][ T8784] vfs_mkdir+0x419/0x690 [ 92.291933][ T8784] do_mkdirat+0x21e/0x280 [ 92.291933][ T8784] ? __ia32_sys_mknod+0xb0/0xb0 [ 92.291933][ T8784] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.291933][ T8784] ? do_syscall_64+0x21/0x7d0 [ 92.291933][ T8784] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.291933][ T8784] do_syscall_64+0xf6/0x7d0 [ 92.291933][ T8784] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 92.291933][ T8784] RIP: 0033:0x4b02a0 [ 92.291933][ T8784] Code: Bad RIP value. [ 92.291933][ T8784] RSP: 002b:000000c0003d74b8 EFLAGS: 00000212 ORIG_RAX: 0000000000000102 [ 92.291933][ T8784] RAX: ffffffffffffffda RBX: 000000c00002ea00 RCX: 00000000004b02a0 [ 92.291933][ T8784] RDX: 00000000000001c0 RSI: 000000c00017a0e0 RDI: ffffffffffffff9c [ 92.291933][ T8784] RBP: 000000c0003d7510 R08: 0000000000000000 R09: 0000000000000000 [ 92.291933][ T8784] R10: 0000000000000000 R11: 0000000000000212 R12: ffffffffffffffff [ 92.291933][ T8784] R13: 0000000000000008 R14: 0000000000000007 R15: 0000000000000100 [ 92.566000][ T8797] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/8797 [ 92.576370][ T8797] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.584351][ T8797] CPU: 1 PID: 8797 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 92.594230][ T8797] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 92.603886][ T8797] Call Trace: [ 92.603886][ T8797] dump_stack+0x18f/0x20d [ 92.603886][ T8797] debug_smp_processor_id.cold+0x88/0x9b [ 92.623946][ T8797] ext4_mb_new_blocks+0xa4d/0x3b70 [ 92.623946][ T8797] ? ext4_ext_search_right+0x2ca/0xb20 [ 92.623946][ T8797] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 92.623946][ T8797] ext4_ext_map_blocks+0x201b/0x33e0 [ 92.623946][ T8797] ? ext4_ext_release+0x10/0x10 [ 92.623946][ T8797] ? down_write_killable+0x170/0x170 [ 92.623946][ T8797] ? ext4_es_lookup_extent+0x41d/0xd10 [ 92.623946][ T8797] ext4_map_blocks+0x4cb/0x1640 [ 92.623946][ T8797] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 92.623946][ T8797] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 92.623946][ T8797] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 92.623946][ T8797] ? __brelse+0x84/0xa0 [ 92.623946][ T8797] ? __ext4_new_inode+0x144/0x55e0 [ 92.623946][ T8797] ext4_getblk+0xad/0x520 [ 92.623946][ T8797] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 92.623946][ T8797] ? ext4_free_inode+0x1700/0x1700 [ 92.623946][ T8797] ext4_bread+0x7c/0x380 [ 92.623946][ T8797] ? ext4_getblk+0x520/0x520 [ 92.623946][ T8797] ? dquot_get_next_dqblk+0x180/0x180 [ 92.623946][ T8797] ? security_transition_sid+0x123/0x190 [ 92.623946][ T8797] ? security_transition_sid+0xed/0x190 [ 92.623946][ T8797] ext4_append+0x153/0x360 [ 92.623946][ T8797] ext4_mkdir+0x5e0/0xdf0 [ 92.623946][ T8797] ? ext4_rmdir+0xde0/0xde0 [ 92.623946][ T8797] vfs_mkdir+0x419/0x690 [ 92.623946][ T8797] do_mkdirat+0x21e/0x280 [ 92.623946][ T8797] ? __ia32_sys_mknod+0xb0/0xb0 [ 92.623946][ T8797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.623946][ T8797] ? do_syscall_64+0x21/0x7d0 [ 92.623946][ T8797] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 92.623946][ T8797] do_syscall_64+0xf6/0x7d0 [ 92.623946][ T8797] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 92.623946][ T8797] RIP: 0033:0x45bd57 [ 92.623946][ T8797] Code: Bad RIP value. [ 92.623946][ T8797] RSP: 002b:00007ffc985958b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 [ 92.623946][ T8797] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 000000000045bd57 [ 92.623946][ T8797] RDX: 0000000000000003 RSI: 00000000000001c0 RDI: 00007ffc985959d0 [ 92.623946][ T8797] RBP: 000000000003a2f8 R08: 000000000000f8ff R09: 0000000000000000 [ 92.623946][ T8797] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000000000c2 [ 92.623946][ T8797] R13: 00007ffc985959d0 R14: 8421084210842109 R15: 00007ffc985959dc [ 93.017553][ T8800] IPVS: ftp: loaded support on port[0] = 21 [ 93.108209][ T8800] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/8800 [ 93.120335][ T8800] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.127916][ T8800] CPU: 3 PID: 8800 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 93.137830][ T8800] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 93.137830][ T8800] Call Trace: [ 93.137830][ T8800] dump_stack+0x18f/0x20d [ 93.137830][ T8800] debug_smp_processor_id.cold+0x88/0x9b [ 93.137830][ T8800] ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.137830][ T8800] ? ext4_ext_search_right+0x2ca/0xb20 [ 93.137830][ T8800] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 93.137830][ T8800] ext4_ext_map_blocks+0x201b/0x33e0 [ 93.137830][ T8800] ? ext4_ext_release+0x10/0x10 [ 93.137830][ T8800] ? down_write_killable+0x170/0x170 [ 93.137830][ T8800] ? ext4_es_lookup_extent+0x41d/0xd10 [ 93.137830][ T8800] ext4_map_blocks+0x4cb/0x1640 [ 93.137830][ T8800] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 93.137830][ T8800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.137830][ T8800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 93.137830][ T8800] ? __brelse+0x84/0xa0 [ 93.137830][ T8800] ? __ext4_new_inode+0x144/0x55e0 [ 93.137830][ T8800] ext4_getblk+0xad/0x520 [ 93.137830][ T8800] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 93.137830][ T8800] ? ext4_free_inode+0x1700/0x1700 [ 93.137830][ T8800] ext4_bread+0x7c/0x380 [ 93.137830][ T8800] ? ext4_getblk+0x520/0x520 [ 93.137830][ T8800] ? dquot_get_next_dqblk+0x180/0x180 [ 93.137830][ T8800] ? security_transition_sid+0x123/0x190 [ 93.137830][ T8800] ? security_transition_sid+0xed/0x190 [ 93.137830][ T8800] ext4_append+0x153/0x360 [ 93.137830][ T8800] ext4_mkdir+0x5e0/0xdf0 [ 93.137830][ T8800] ? ext4_rmdir+0xde0/0xde0 [ 93.137830][ T8800] vfs_mkdir+0x419/0x690 [ 93.137830][ T8800] do_mkdirat+0x21e/0x280 [ 93.137830][ T8800] ? __ia32_sys_mknod+0xb0/0xb0 [ 93.137830][ T8800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.137830][ T8800] ? do_syscall_64+0x21/0x7d0 [ 93.137830][ T8800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.137830][ T8800] do_syscall_64+0xf6/0x7d0 [ 93.137830][ T8800] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 93.137830][ T8800] RIP: 0033:0x45bd57 [ 93.137830][ T8800] Code: Bad RIP value. [ 93.137830][ T8800] RSP: 002b:00007ffc985957a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 93.137830][ T8800] RAX: ffffffffffffffda RBX: 00007ffc98595800 RCX: 000000000045bd57 [ 93.137830][ T8800] RDX: 00000000004a9308 RSI: 00000000000001ff RDI: 00007ffc98595800 [ 93.137830][ T8800] RBP: 00007ffc985957fc R08: 0000000000000000 R09: 0000000000000003 [ 93.137830][ T8800] R10: 0000000000000000 R11: 0000000000000202 R12: 000000000074c988 [ 93.137830][ T8800] R13: 00007ffc98595be8 R14: 0000000000000000 R15: 0000000000000000 [ 93.521539][ T8800] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor.0/8800 [ 93.541369][ T8800] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.550088][ T8800] CPU: 3 PID: 8800 Comm: syz-executor.0 Not tainted 5.7.0-syzkaller #0 [ 93.560024][ T8800] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 93.560024][ T8800] Call Trace: [ 93.560024][ T8800] dump_stack+0x18f/0x20d [ 93.560024][ T8800] debug_smp_processor_id.cold+0x88/0x9b [ 93.560024][ T8800] ext4_mb_new_blocks+0xa4d/0x3b70 [ 93.560024][ T8800] ? ext4_ext_search_right+0x2ca/0xb20 [ 93.560024][ T8800] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 93.560024][ T8800] ext4_ext_map_blocks+0x201b/0x33e0 [ 93.560024][ T8800] ? ext4_ext_release+0x10/0x10 [ 93.560024][ T8800] ? down_write_killable+0x170/0x170 [ 93.560024][ T8800] ? ext4_es_lookup_extent+0x41d/0xd10 [ 93.560024][ T8800] ext4_map_blocks+0x4cb/0x1640 [ 93.560024][ T8800] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 93.560024][ T8800] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 93.560024][ T8800] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 93.560024][ T8800] ? __brelse+0x84/0xa0 [ 93.560024][ T8800] ? __ext4_new_inode+0x144/0x55e0 [ 93.560024][ T8800] ext4_getblk+0xad/0x520 [ 93.560024][ T8800] ? ext4_iomap_overwrite_begin+0xa0/0xa0 [ 93.560024][ T8800] ? ext4_free_inode+0x1700/0x1700 [ 93.560024][ T8800] ext4_bread+0x7c/0x380 [ 93.560024][ T8800] ? ext4_getblk+0x520/0x520 [ 93.560024][ T8800] ? dquot_get_next_dqblk+0x180/0x180 [ 93.560024][ T8800] ? security_transition_sid+0x123/0x190 [ 93.560024][ T8800] ? security_transition_sid+0xed/0x190 [ 93.560024][ T8800] ext4_append+0x153/0x360 [ 93.560024][ T8800] ext4_mkdir+0x5e0/0xdf0 [ 93.560024][ T8800] ? ext4_rmdir+0xde0/0xde0 [ 93.560024][ T8800] vfs_mkdir+0x419/0x690 [ 93.560024][ T8800] do_mkdirat+0x21e/0x280 [ 93.560024][ T8800] ? __ia32_sys_mknod+0xb0/0xb0 [ 93.560024][ T8800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.560024][ T8800] ? do_syscall_64+0x21/0x7d0 [ 93.560024][ T8800] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 93.560024][ T8800] do_syscall_64+0xf6/0x7d0 [ 93.560024][ T8800] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 93.560024][ T8800] RIP: 0033:0x45bd57 [ 93.560024][ T8800] Code: Bad RIP value. [ 93.560024][ T8800] RSP: 002b:00007ffc985957a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000053 [ 93.560024][ T8800] RAX: ffffffffffffffda RBX: 00007ffc98595800 RCX: 000000000045bd57 [ 93.560024][ T8800] RDX: 00000000004a9308 RSI: 00000000000001ff RDI: 00007ffc98595800 [ 93.560024][ T8800] RBP: 00007ffc985957fc R08: 0000000000000001 R09: 0000000000000003 [ 93.560024][ T8800] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000002 [ 93.560024][ T8800] R13: 0000000000000003 R14: 0000000000016c26 R15: 00000000ffffffff [ 94.324448][ T8] tipc: TX() has been purged, node left! [ 95.927224][ T537] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u17:7/537 [ 95.944060][ T537] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 95.956353][ T537] CPU: 3 PID: 537 Comm: kworker/u17:7 Not tainted 5.7.0-syzkaller #0 [ 95.966101][ T537] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 95.974227][ T537] Workqueue: writeback wb_workfn (flush-8:0) [ 95.974227][ T537] Call Trace: [ 95.974227][ T537] dump_stack+0x18f/0x20d [ 95.974227][ T537] debug_smp_processor_id.cold+0x88/0x9b [ 95.974227][ T537] ext4_mb_new_blocks+0xa4d/0x3b70 [ 95.974227][ T537] ? ext4_find_extent+0x81a/0xad0 [ 95.974227][ T537] ? ext4_ext_search_right+0x2ca/0xb20 [ 95.974227][ T537] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 95.974227][ T537] ext4_ext_map_blocks+0x201b/0x33e0 [ 95.974227][ T537] ? ext4_ext_release+0x10/0x10 [ 95.974227][ T537] ? down_write_killable+0x170/0x170 [ 95.974227][ T537] ? ext4_es_lookup_extent+0x41d/0xd10 [ 95.974227][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 95.974227][ T537] ext4_map_blocks+0x4cb/0x1640 [ 95.974227][ T537] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 95.974227][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 95.974227][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 95.974227][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 95.974227][ T537] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 95.974227][ T537] ext4_writepages+0x1a7b/0x33c0 [ 95.974227][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 95.974227][ T537] ? __lock_acquire+0x2224/0x48b0 [ 95.974227][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 95.974227][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 95.974227][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 95.974227][ T537] ? do_writepages+0xfa/0x2a0 [ 95.974227][ T537] do_writepages+0xfa/0x2a0 [ 95.974227][ T537] ? page_writeback_cpu_online+0x10/0x10 [ 95.974227][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 95.974227][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 95.974227][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 95.974227][ T537] __writeback_single_inode+0x12a/0x13d0 [ 95.974227][ T537] ? _raw_spin_unlock+0x24/0x40 [ 95.974227][ T537] ? wbc_attach_and_unlock_inode+0x545/0x9c0 [ 95.974227][ T537] writeback_sb_inodes+0x515/0xdc0 [ 95.974227][ T537] ? __writeback_single_inode+0x13d0/0x13d0 [ 95.974227][ T537] __writeback_inodes_wb+0xc3/0x250 [ 95.974227][ T537] wb_writeback+0x8db/0xd50 [ 95.974227][ T537] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 95.974227][ T537] ? cpumask_next+0x3c/0x40 [ 95.974227][ T537] ? get_nr_dirty_inodes+0xd6/0x130 [ 95.974227][ T537] wb_workfn+0x9bc/0x1090 [ 95.974227][ T537] ? inode_wait_for_writeback+0x30/0x30 [ 95.974227][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 95.974227][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 95.974227][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 95.974227][ T537] process_one_work+0x965/0x1690 [ 95.974227][ T537] ? lock_release+0x800/0x800 [ 95.974227][ T537] ? pwq_dec_nr_in_flight+0x310/0x310 [ 95.974227][ T537] ? rwlock_bug.part.0+0x90/0x90 [ 95.974227][ T537] worker_thread+0x96/0xe10 [ 95.974227][ T537] ? process_one_work+0x1690/0x1690 [ 95.974227][ T537] kthread+0x3b5/0x4a0 [ 95.974227][ T537] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 95.974227][ T537] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 95.974227][ T537] ret_from_fork+0x24/0x30 [ 101.575515][ T537] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u17:7/537 [ 101.585790][ T537] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 101.592413][ T537] CPU: 3 PID: 537 Comm: kworker/u17:7 Not tainted 5.7.0-syzkaller #0 [ 101.595684][ T537] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 101.595684][ T537] Workqueue: writeback wb_workfn (flush-8:0) [ 101.595684][ T537] Call Trace: [ 101.595684][ T537] dump_stack+0x18f/0x20d [ 101.595684][ T537] debug_smp_processor_id.cold+0x88/0x9b [ 101.595684][ T537] ext4_mb_new_blocks+0xa4d/0x3b70 [ 101.595684][ T537] ? ext4_find_extent+0x81a/0xad0 [ 101.595684][ T537] ? ext4_ext_search_right+0x2ca/0xb20 [ 101.595684][ T537] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 101.654175][ T537] ext4_ext_map_blocks+0x201b/0x33e0 [ 101.654175][ T537] ? ext4_ext_release+0x10/0x10 [ 101.654175][ T537] ? down_write_killable+0x170/0x170 [ 101.673900][ T537] ? ext4_es_lookup_extent+0x41d/0xd10 [ 101.673900][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 101.673900][ T537] ext4_map_blocks+0x4cb/0x1640 [ 101.693893][ T537] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 101.693893][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 101.693893][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 101.714037][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 101.714037][ T537] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 101.714037][ T537] ext4_writepages+0x1a7b/0x33c0 [ 101.714037][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 101.733903][ T537] ? __lock_acquire+0x2224/0x48b0 [ 101.733903][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 101.733903][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 101.753871][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 101.753871][ T537] ? do_writepages+0xfa/0x2a0 [ 101.753871][ T537] do_writepages+0xfa/0x2a0 [ 101.773913][ T537] ? page_writeback_cpu_online+0x10/0x10 [ 101.773913][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 101.773913][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 101.793899][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 101.793899][ T537] __writeback_single_inode+0x12a/0x13d0 [ 101.813944][ T537] ? _raw_spin_unlock+0x24/0x40 [ 101.813944][ T537] ? wbc_attach_and_unlock_inode+0x545/0x9c0 [ 101.833912][ T537] writeback_sb_inodes+0x515/0xdc0 [ 101.833912][ T537] ? __writeback_single_inode+0x13d0/0x13d0 [ 101.833912][ T537] __writeback_inodes_wb+0xc3/0x250 [ 101.833912][ T537] wb_writeback+0x8db/0xd50 [ 101.853895][ T537] ? writeback_inodes_wb.constprop.0+0x1a0/0x1a0 [ 101.853895][ T537] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 101.853895][ T537] ? cpumask_next+0x3c/0x40 [ 101.873913][ T537] ? get_nr_dirty_inodes+0xd6/0x130 [ 101.873913][ T537] wb_workfn+0xab3/0x1090 [ 101.873913][ T537] ? inode_wait_for_writeback+0x30/0x30 [ 101.894088][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 101.894088][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 101.894088][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 101.913898][ T537] process_one_work+0x965/0x1690 [ 101.913898][ T537] ? lock_release+0x800/0x800 [ 101.913898][ T537] ? pwq_dec_nr_in_flight+0x310/0x310 [ 101.933908][ T537] ? rwlock_bug.part.0+0x90/0x90 [ 101.933908][ T537] worker_thread+0x96/0xe10 [ 101.933908][ T537] ? process_one_work+0x1690/0x1690 [ 101.953911][ T537] kthread+0x3b5/0x4a0 [ 101.953911][ T537] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 101.953911][ T537] ? kthread_mod_delayed_work+0x1a0/0x1a0 [ 101.973916][ T537] ret_from_fork+0x24/0x30 [ 101.986740][ T537] BUG: using smp_processor_id() in preemptible [00000000] code: kworker/u17:7/537 [ 101.998774][ T537] caller is ext4_mb_new_blocks+0xa4d/0x3b70 [ 102.006306][ T537] CPU: 2 PID: 537 Comm: kworker/u17:7 Not tainted 5.7.0-syzkaller #0 [ 102.016227][ T537] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 102.016249][ T537] Workqueue: writeback wb_workfn (flush-8:0) [ 102.016249][ T537] Call Trace: [ 102.016249][ T537] dump_stack+0x18f/0x20d [ 102.016249][ T537] debug_smp_processor_id.cold+0x88/0x9b [ 102.016249][ T537] ext4_mb_new_blocks+0xa4d/0x3b70 [ 102.016249][ T537] ? ext4_find_extent+0x81a/0xad0 [ 102.016249][ T537] ? ext4_ext_search_right+0x2ca/0xb20 [ 102.016249][ T537] ? ext4_inode_to_goal_block+0x2df/0x3f0 [ 102.016249][ T537] ext4_ext_map_blocks+0x201b/0x33e0 [ 102.016249][ T537] ? ext4_ext_release+0x10/0x10 [ 102.016249][ T537] ? down_write_killable+0x170/0x170 [ 102.016249][ T537] ? ext4_es_lookup_extent+0x41d/0xd10 [ 102.016249][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 102.016249][ T537] ext4_map_blocks+0x4cb/0x1640 [ 102.016249][ T537] ? ext4_issue_zeroout+0x1e0/0x1e0 [ 102.016249][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 102.016249][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 102.016249][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 102.016249][ T537] ? ext4_alloc_io_end_vec+0x145/0x1c0 [ 102.016249][ T537] ext4_writepages+0x1a7b/0x33c0 [ 102.016249][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 102.016249][ T537] ? __lock_acquire+0x2224/0x48b0 [ 102.016249][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 102.016249][ T537] ? lockdep_hardirqs_on_prepare+0x590/0x590 [ 102.016249][ T537] ? __ext4_mark_inode_dirty+0x940/0x940 [ 102.016249][ T537] ? do_writepages+0xfa/0x2a0 [ 102.016249][ T537] do_writepages+0xfa/0x2a0 [ 102.016249][ T537] ? page_writeback_cpu_online+0x10/0x10 [ 102.016249][ T537] ? debug_smp_processor_id+0x2f/0x185 [ 102.016249][ T537] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 102.016249][ T537] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 102.016249][ T537] __writeback_single_inode+0x12a/0x13d0 [ 102.016249][ T537] ? _raw_spin_unlock+0x24/0x40 [ 102.016249][ T537] ? wbc_attach_and_unlock_inode+0x545/0x9c0