RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 ====================================================== WARNING: possible circular locking dependency detected 4.19.211-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor533/8108 is trying to acquire lock: 00000000053aabd6 (console_owner){....}, at: log_next kernel/printk/printk.c:511 [inline] 00000000053aabd6 (console_owner){....}, at: console_unlock+0x3a9/0x1110 kernel/printk/printk.c:2447 but task is already holding lock: 00000000af24c593 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xf4/0x1f0 drivers/tty/pty.c:120 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&(&port->lock)->rlock){-.-.}: tty_port_tty_get+0x1d/0x80 drivers/tty/tty_port.c:289 tty_port_default_wakeup+0x11/0x40 drivers/tty/tty_port.c:47 serial8250_tx_chars+0x490/0xaf0 drivers/tty/serial/8250/8250_port.c:1813 serial8250_handle_irq.part.0+0x31f/0x3d0 drivers/tty/serial/8250/8250_port.c:1900 serial8250_handle_irq drivers/tty/serial/8250/8250_port.c:1873 [inline] serial8250_default_handle_irq+0xae/0x220 drivers/tty/serial/8250/8250_port.c:1916 serial8250_interrupt+0x101/0x240 drivers/tty/serial/8250/8250_core.c:125 __handle_irq_event_percpu+0x27e/0x8e0 kernel/irq/handle.c:149 handle_irq_event_percpu kernel/irq/handle.c:189 [inline] handle_irq_event+0x102/0x290 kernel/irq/handle.c:206 handle_edge_irq+0x260/0xcf0 kernel/irq/chip.c:800 generic_handle_irq_desc include/linux/irqdesc.h:155 [inline] handle_irq+0x35/0x50 arch/x86/kernel/irq_64.c:87 do_IRQ+0x93/0x1c0 arch/x86/kernel/irq.c:246 ret_from_intr+0x0/0x1e arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] _raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 spin_unlock_irqrestore include/linux/spinlock.h:384 [inline] uart_write+0x3bb/0x6f0 drivers/tty/serial/serial_core.c:612 do_output_char+0x5de/0x850 drivers/tty/n_tty.c:445 process_output drivers/tty/n_tty.c:512 [inline] n_tty_write+0x46e/0xff0 drivers/tty/n_tty.c:2343 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 redirected_tty_write+0xaa/0xb0 drivers/tty/tty_io.c:1065 do_loop_readv_writev fs/read_write.c:704 [inline] do_loop_readv_writev fs/read_write.c:688 [inline] do_iter_write+0x461/0x5d0 fs/read_write.c:962 vfs_writev+0x153/0x2e0 fs/read_write.c:1005 do_writev+0x136/0x330 fs/read_write.c:1040 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&port_lock_key){-.-.}: serial8250_console_write+0x90e/0xb70 drivers/tty/serial/8250/8250_port.c:3290 call_console_drivers kernel/printk/printk.c:1764 [inline] console_unlock+0xbb6/0x1110 kernel/printk/printk.c:2460 vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 register_console+0x87f/0xc90 kernel/printk/printk.c:2776 univ8250_console_init+0x3a/0x46 drivers/tty/serial/8250/8250_core.c:684 console_init+0x4cb/0x718 kernel/printk/printk.c:2862 start_kernel+0x686/0x911 init/main.c:659 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 -> #0 (console_owner){....}: console_lock_spinning_enable kernel/printk/printk.c:1627 [inline] console_unlock+0x411/0x1110 kernel/printk/printk.c:2457 vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 fail_dump lib/fault-inject.c:44 [inline] should_fail+0x66b/0x7b0 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682 cache_alloc_refill+0x273/0x340 mm/slab.c:3049 ____cache_alloc mm/slab.c:3132 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x362/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc+0x23f/0x2a0 drivers/tty/tty_buffer.c:170 __tty_buffer_request_room+0x156/0x2a0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x250 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x126/0x1f0 drivers/tty/pty.c:122 n_tty_write+0xa03/0xff0 drivers/tty/n_tty.c:2354 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 __vfs_write+0xf7/0x770 fs/read_write.c:485 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: console_owner --> &port_lock_key --> &(&port->lock)->rlock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&(&port->lock)->rlock); lock(&port_lock_key); lock(&(&port->lock)->rlock); lock(console_owner); *** DEADLOCK *** 6 locks held by syz-executor533/8108: #0: 00000000935b7710 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:272 #1: 000000000a51f7ad (&tty->atomic_write_lock){+.+.}, at: tty_write_lock drivers/tty/tty_io.c:886 [inline] #1: 000000000a51f7ad (&tty->atomic_write_lock){+.+.}, at: do_tty_write drivers/tty/tty_io.c:909 [inline] #1: 000000000a51f7ad (&tty->atomic_write_lock){+.+.}, at: tty_write+0x24e/0x810 drivers/tty/tty_io.c:1044 #2: 0000000045402ce0 (&tty->termios_rwsem){++++}, at: n_tty_write+0x1b5/0xff0 drivers/tty/n_tty.c:2314 #3: 0000000070e8d56e (&ldata->output_lock){+.+.}, at: n_tty_write+0x9d0/0xff0 drivers/tty/n_tty.c:2353 #4: 00000000af24c593 (&(&port->lock)->rlock){-.-.}, at: pty_write+0xf4/0x1f0 drivers/tty/pty.c:120 #5: 00000000751716ab (console_lock){+.+.}, at: vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 stack backtrace: CPU: 1 PID: 8108 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222 check_prev_add kernel/locking/lockdep.c:1866 [inline] check_prevs_add kernel/locking/lockdep.c:1979 [inline] validate_chain kernel/locking/lockdep.c:2420 [inline] __lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 console_lock_spinning_enable kernel/printk/printk.c:1627 [inline] console_unlock+0x411/0x1110 kernel/printk/printk.c:2457 vprintk_emit+0x2d1/0x740 kernel/printk/printk.c:1965 vprintk_func+0x79/0x180 kernel/printk/printk_safe.c:405 printk+0xba/0xed kernel/printk/printk.c:2040 fail_dump lib/fault-inject.c:44 [inline] should_fail+0x66b/0x7b0 lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682 cache_alloc_refill+0x273/0x340 mm/slab.c:3049 ____cache_alloc mm/slab.c:3132 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x362/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc+0x23f/0x2a0 drivers/tty/tty_buffer.c:170 __tty_buffer_request_room+0x156/0x2a0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x250 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x126/0x1f0 drivers/tty/pty.c:122 n_tty_write+0xa03/0xff0 drivers/tty/n_tty.c:2354 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 __vfs_write+0xf7/0x770 fs/read_write.c:485 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa5c6d45cf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 8109 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161 wp_page_copy+0x219/0x2c40 mm/memory.c:2605 do_wp_page+0x2d4/0x2210 mm/memory.c:2903 handle_pte_fault mm/memory.c:4191 [inline] __handle_mm_fault+0x258b/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 syz-executor533 cpuset=/ mems_allowed=0-1 CPU: 1 PID: 8109 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 dump_header+0x15d/0xc3f mm/oom_kill.c:443 oom_kill_process.cold+0x10/0x692 mm/oom_kill.c:956 out_of_memory mm/oom_kill.c:1114 [inline] out_of_memory+0x1072/0x1390 mm/oom_kill.c:1064 pagefault_out_of_memory+0x102/0x120 mm/oom_kill.c:1157 mm_fault_error+0x106/0x390 arch/x86/mm/fault.c:1040 __do_page_fault+0xc34/0xd60 arch/x86/mm/fault.c:1440 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 Mem-Info: active_anon:2987 inactive_anon:4714 isolated_anon:0 active_file:5340 inactive_file:11857 isolated_file:0 unevictable:0 dirty:7865 writeback:0 unstable:0 slab_reclaimable:16167 slab_unreclaimable:113419 mapped:3803 shmem:4898 pagetables:338 bounce:0 free:1530384 free_pcp:466 free_cma:0 Node 0 active_anon:11948kB inactive_anon:18856kB active_file:21236kB inactive_file:47428kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15212kB dirty:31452kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:204kB low:252kB high:300kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2693 2695 2695 2695 Node 0 DMA32 free:2066500kB min:35996kB low:44992kB high:53988kB active_anon:11948kB inactive_anon:18856kB active_file:21236kB inactive_file:47428kB unevictable:0kB writepending:31452kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:1828kB local_pcp:760kB free_cma:0kB lowmem_reserve[]: 0 0 1 1 1 Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 1349*4kB (UE) 11*8kB (U) 219*16kB (UE) 116*32kB (UME) 26*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2066076kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 22094 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 369649 pages reserved 0 pages cma reserved Unreclaimable slab info: Name Used Total TIPC 1KB 7KB SCTPv6 2KB 6KB DCCPv6 2KB 7KB DCCP 2KB 7KB RXRPC 1KB 6KB rxrpc_call_jar 11KB 15KB fib6_nodes 0KB 4KB ip6_dst_cache 1KB 3KB RAWv6 10KB 20KB UDPv6 13KB 15KB TCPv6 6KB 6KB nf_conntrack 22KB 22KB t10_alua_lu_gp_cache 0KB 3KB sd_ext_cdb 0KB 7KB scsi_sense_cache 1056KB 1064KB virtio_scsi_cmd 16KB 16KB sgpool-128 8KB 8KB sgpool-64 4KB 12KB sgpool-32 2KB 15KB sgpool-16 1KB 7KB sgpool-8 0KB 7KB mqueue_inode_cache 1KB 7KB bio_post_read_ctx 14KB 15KB bio-2 14KB 15KB jfs_mp 7KB 7KB cifs_small_rq 15KB 16KB cifs_request 67KB 67KB cifs_mpx_ids 0KB 7KB nfs_commit_data 3KB 14KB nfs_write_data 34KB 44KB ext4_system_zone 1KB 7KB bio-1 1KB 7KB rpc_buffers 17KB 25KB rpc_tasks 2KB 7KB UNIX 416KB 416KB tcp_bind_bucket 0KB 4KB ip_fib_trie 0KB 3KB ip_fib_alias 0KB 3KB ip_dst_cache 3KB 8KB RAW 6KB 7KB UDP 25KB 40KB request_sock_TCP 0KB 3KB TCP 11KB 11KB hugetlbfs_inode_cache 3KB 15KB fscache_cookie_jar 1KB 11KB eventpoll_pwq 39KB 91KB eventpoll_epi 64KB 145KB inotify_inode_mark 6KB 11KB request_queue 215KB 309KB blkdev_requests 1KB 3KB blkdev_ioc 4KB 15KB bio-0 92KB 180KB biovec-max 1237KB 1262KB biovec-64 23KB 55KB biovec-16 3KB 15KB bio_integrity_payload 1KB 8KB khugepaged_mm_slot 1KB 3KB uid_cache 1KB 4KB dmaengine-unmap-2 0KB 3KB skbuff_fclone_cache 318KB 318KB skbuff_head_cache 1828KB 1905KB configfs_dir_cache 3KB 7KB file_lock_cache 100KB 106KB file_lock_ctx 9KB 15KB fsnotify_mark_connector 2KB 3KB shmem_inode_cache 7786KB 7789KB task_delay_info 106KB 426KB taskstats 0KB 3KB proc_dir_entry 302KB 307KB pde_opener 37KB 77KB seq_file 412KB 771KB sigqueue 19KB 55KB kernfs_node_cache 9950KB 9961KB mnt_cache 68KB 80KB filp 10141KB 10143KB names_cache 177569KB 177590KB iint_cache 83KB 83KB key_jar 4KB 7KB nsproxy 0KB 3KB vm_area_struct 2170KB 2730KB mm_struct 248KB 494KB fs_cache 96KB 336KB files_cache 240KB 607KB signal_cache 508KB 1365KB sighand_cache 508KB 638KB task_struct 1830KB 1830KB cred_jar 1027KB 1984KB anon_vma_chain 780KB 1102KB anon_vma 210KB 331KB pid 73KB 320KB Acpi-Operand 157KB 202KB Acpi-ParseExt 8KB 11KB Acpi-Parse 41KB 51KB Acpi-State 52KB 70KB Acpi-Namespace 20KB 27KB numa_policy 0KB 3KB debug_objects_cache 649KB 683KB trace_event_file 297KB 298KB ftrace_event_field 398KB 401KB pool_workqueue 79KB 84KB page->ptl 214KB 553KB kmalloc-2097152 2050KB 2050KB kmalloc-524288 2056KB 2056KB kmalloc-262144 1290KB 1290KB kmalloc-131072 650KB 650KB kmalloc-65536 264KB 330KB kmalloc-32768 660KB 660KB kmalloc-16384 247KB 297KB kmalloc-8192 1105KB 1146KB kmalloc-4096 10051KB 10110KB kmalloc-2048 6364KB 6368KB kmalloc-1024 3373KB 3425KB kmalloc-512 3153KB 5092KB kmalloc-256 1961KB 2418KB kmalloc-128 450KB 492KB kmalloc-96 2522KB 2540KB kmalloc-64 2354KB 2448KB kmalloc-32 1028KB 1866KB kmalloc-192 1028KB 1832KB kmem_cache 177KB 183KB Out of memory (oom_kill_allocating_task): Kill process 8109 (syz-executor533) score 0 or sacrifice child Killed process 8109 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 8109 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8112 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682 cache_alloc_refill+0x273/0x340 mm/slab.c:3049 ____cache_alloc mm/slab.c:3132 [inline] __do_cache_alloc mm/slab.c:3354 [inline] slab_alloc mm/slab.c:3389 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x362/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc+0x23f/0x2a0 drivers/tty/tty_buffer.c:170 __tty_buffer_request_room+0x156/0x2a0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x250 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x126/0x1f0 drivers/tty/pty.c:122 n_tty_write+0xa03/0xff0 drivers/tty/n_tty.c:2354 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 __vfs_write+0xf7/0x770 fs/read_write.c:485 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa5c6d45cf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8113 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161 wp_page_copy+0x219/0x2c40 mm/memory.c:2605 do_wp_page+0x2d4/0x2210 mm/memory.c:2903 handle_pte_fault mm/memory.c:4191 [inline] __handle_mm_fault+0x258b/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 syz-executor533 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 8113 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 dump_header+0x15d/0xc3f mm/oom_kill.c:443 oom_kill_process.cold+0x10/0x692 mm/oom_kill.c:956 out_of_memory mm/oom_kill.c:1114 [inline] out_of_memory+0x1072/0x1390 mm/oom_kill.c:1064 pagefault_out_of_memory+0x102/0x120 mm/oom_kill.c:1157 mm_fault_error+0x106/0x390 arch/x86/mm/fault.c:1040 __do_page_fault+0xc34/0xd60 arch/x86/mm/fault.c:1440 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 Mem-Info: active_anon:2989 inactive_anon:4714 isolated_anon:0 active_file:5342 inactive_file:11887 isolated_file:0 unevictable:0 dirty:7904 writeback:0 unstable:0 slab_reclaimable:16174 slab_unreclaimable:113548 mapped:3832 shmem:4898 pagetables:338 bounce:0 free:1530292 free_pcp:382 free_cma:0 Node 0 active_anon:11956kB inactive_anon:18856kB active_file:21244kB inactive_file:47548kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15328kB dirty:31608kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:8kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:204kB low:252kB high:300kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2693 2695 2695 2695 Node 0 DMA32 free:2066132kB min:35996kB low:44992kB high:53988kB active_anon:11956kB inactive_anon:18856kB active_file:21244kB inactive_file:47548kB unevictable:0kB writepending:31608kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:1516kB local_pcp:904kB free_cma:0kB lowmem_reserve[]: 0 0 1 1 1 Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:8kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 1349*4kB (UE) 17*8kB (U) 167*16kB (UE) 129*32kB (UME) 27*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2065772kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 22133 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 369649 pages reserved 0 pages cma reserved Unreclaimable slab info: Name Used Total TIPC 1KB 7KB SCTPv6 2KB 6KB DCCPv6 2KB 7KB DCCP 2KB 7KB RXRPC 1KB 6KB rxrpc_call_jar 11KB 15KB fib6_nodes 0KB 4KB ip6_dst_cache 0KB 3KB RAWv6 10KB 20KB UDPv6 13KB 15KB TCPv6 6KB 6KB nf_conntrack 20KB 22KB t10_alua_lu_gp_cache 0KB 3KB sd_ext_cdb 0KB 7KB scsi_sense_cache 1056KB 1064KB virtio_scsi_cmd 16KB 16KB sgpool-128 8KB 8KB sgpool-64 4KB 12KB sgpool-32 2KB 15KB sgpool-16 1KB 7KB sgpool-8 0KB 7KB mqueue_inode_cache 1KB 7KB bio_post_read_ctx 14KB 15KB bio-2 14KB 15KB jfs_mp 7KB 7KB cifs_small_rq 15KB 16KB cifs_request 67KB 67KB cifs_mpx_ids 0KB 7KB nfs_commit_data 3KB 14KB nfs_write_data 34KB 44KB ext4_system_zone 1KB 7KB bio-1 1KB 7KB rpc_buffers 17KB 25KB rpc_tasks 2KB 7KB UNIX 416KB 416KB tcp_bind_bucket 0KB 4KB ip_fib_trie 0KB 3KB ip_fib_alias 0KB 3KB ip_dst_cache 2KB 8KB RAW 6KB 7KB UDP 25KB 40KB request_sock_TCP 0KB 3KB TCP 8KB 11KB hugetlbfs_inode_cache 3KB 15KB fscache_cookie_jar 1KB 11KB eventpoll_pwq 36KB 91KB eventpoll_epi 62KB 145KB inotify_inode_mark 6KB 11KB request_queue 215KB 309KB blkdev_requests 1KB 3KB blkdev_ioc 4KB 15KB bio-0 91KB 176KB biovec-max 1237KB 1262KB biovec-64 23KB 55KB biovec-16 3KB 15KB bio_integrity_payload 1KB 8KB khugepaged_mm_slot 1KB 3KB uid_cache 1KB 4KB dmaengine-unmap-2 0KB 3KB skbuff_fclone_cache 318KB 318KB skbuff_head_cache 1743KB 1905KB configfs_dir_cache 3KB 7KB file_lock_cache 100KB 106KB file_lock_ctx 9KB 15KB fsnotify_mark_connector 2KB 3KB shmem_inode_cache 7786KB 7789KB task_delay_info 106KB 426KB taskstats 0KB 3KB proc_dir_entry 302KB 307KB pde_opener 36KB 77KB seq_file 379KB 736KB sigqueue 18KB 55KB kernfs_node_cache 9950KB 9961KB mnt_cache 68KB 80KB filp 10355KB 10357KB names_cache 178393KB 178415KB iint_cache 80KB 83KB key_jar 4KB 7KB nsproxy 0KB 3KB vm_area_struct 2170KB 2730KB mm_struct 248KB 494KB fs_cache 96KB 336KB files_cache 240KB 607KB signal_cache 508KB 1365KB sighand_cache 508KB 638KB task_struct 1843KB 1843KB cred_jar 1132KB 1984KB anon_vma_chain 780KB 1102KB anon_vma 210KB 331KB pid 73KB 320KB Acpi-Operand 157KB 202KB Acpi-ParseExt 8KB 11KB Acpi-Parse 41KB 51KB Acpi-State 52KB 70KB Acpi-Namespace 20KB 27KB numa_policy 0KB 3KB debug_objects_cache 648KB 683KB trace_event_file 297KB 298KB ftrace_event_field 398KB 401KB pool_workqueue 79KB 84KB page->ptl 214KB 553KB kmalloc-2097152 2050KB 2050KB kmalloc-524288 2056KB 2056KB kmalloc-262144 1290KB 1290KB kmalloc-131072 650KB 650KB kmalloc-65536 264KB 330KB kmalloc-32768 660KB 660KB kmalloc-16384 247KB 297KB kmalloc-8192 1105KB 1146KB kmalloc-4096 9311KB 9371KB kmalloc-2048 6370KB 6375KB kmalloc-1024 3429KB 3480KB kmalloc-512 3045KB 5070KB kmalloc-256 1958KB 2418KB kmalloc-128 446KB 492KB kmalloc-96 2554KB 2572KB kmalloc-64 2354KB 2448KB kmalloc-32 1028KB 1866KB kmalloc-192 1027KB 1832KB kmem_cache 177KB 183KB Out of memory (oom_kill_allocating_task): Kill process 8113 (syz-executor533) score 0 or sacrifice child Killed process 8113 (syz-executor533) total-vm:17440kB, anon-rss:2100kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 8113 (syz-executor533), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 1 PID: 8116 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 __should_failslab+0x115/0x180 mm/failslab.c:32 should_failslab+0x5/0x10 mm/slab_common.c:1590 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] __do_kmalloc mm/slab.c:3725 [inline] __kmalloc+0x6d/0x3c0 mm/slab.c:3736 kmalloc include/linux/slab.h:520 [inline] tty_buffer_alloc+0x23f/0x2a0 drivers/tty/tty_buffer.c:170 __tty_buffer_request_room+0x156/0x2a0 drivers/tty/tty_buffer.c:268 tty_insert_flip_string_fixed_flag+0x93/0x250 drivers/tty/tty_buffer.c:313 tty_insert_flip_string include/linux/tty_flip.h:37 [inline] pty_write+0x126/0x1f0 drivers/tty/pty.c:122 n_tty_write+0xa03/0xff0 drivers/tty/n_tty.c:2354 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 __vfs_write+0xf7/0x770 fs/read_write.c:485 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa5c6d45cf9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 a1 17 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe3dc330f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa5c6d45cf9 RDX: 0000000000000001 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007ffe3dc33110 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 431bde82d7b634db R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 FAULT_INJECTION: forcing a failure. name fail_page_alloc, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 8117 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0xf lib/fault-inject.c:149 should_fail_alloc_page mm/page_alloc.c:3088 [inline] prepare_alloc_pages mm/page_alloc.c:4346 [inline] __alloc_pages_nodemask+0x239/0x2890 mm/page_alloc.c:4393 alloc_pages_vma+0xf2/0x780 mm/mempolicy.c:2161 wp_page_copy+0x219/0x2c40 mm/memory.c:2605 do_wp_page+0x2d4/0x2210 mm/memory.c:2903 handle_pte_fault mm/memory.c:4191 [inline] __handle_mm_fault+0x258b/0x41c0 mm/memory.c:4299 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 syz-executor533 invoked oom-killer: gfp_mask=0x0(), nodemask=(null), order=0, oom_score_adj=1000 syz-executor533 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 8117 Comm: syz-executor533 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 dump_header+0x15d/0xc3f mm/oom_kill.c:443 oom_kill_process.cold+0x10/0x692 mm/oom_kill.c:956 out_of_memory mm/oom_kill.c:1114 [inline] out_of_memory+0x1072/0x1390 mm/oom_kill.c:1064 pagefault_out_of_memory+0x102/0x120 mm/oom_kill.c:1157 mm_fault_error+0x106/0x390 arch/x86/mm/fault.c:1040 __do_page_fault+0xc34/0xd60 arch/x86/mm/fault.c:1440 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7fa5c6d06ff5 Code: 0a 00 00 74 08 84 c9 0f 85 46 02 00 00 45 31 e4 0f 1f 44 00 00 64 8b 04 25 18 00 00 00 ba 01 00 00 00 85 c0 0f 85 d5 01 00 00 <0f> b1 15 2c ae 0a 00 4c 8b 33 4d 85 f6 75 3b e9 72 01 00 00 0f 1f RSP: 002b:00007ffe3dc330b0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 00007fa5c6daf140 RCX: 0000000000000001 RDX: 0000000000000001 RSI: 00007fa5c6daf140 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000001 R09: 00007ffe3dc33090 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 00007ffe3dc33140 R15: 00007ffe3dc33120 Mem-Info: active_anon:2995 inactive_anon:4714 isolated_anon:0 active_file:5342 inactive_file:11909 isolated_file:0 unevictable:0 dirty:7871 writeback:0 unstable:0 slab_reclaimable:16175 slab_unreclaimable:112941 mapped:3853 shmem:4898 pagetables:338 bounce:0 free:1530647 free_pcp:584 free_cma:0 Node 0 active_anon:11980kB inactive_anon:18856kB active_file:21244kB inactive_file:47636kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:15412kB dirty:31484kB writeback:0kB shmem:19592kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:15908kB min:204kB low:252kB high:300kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2693 2695 2695 2695 Node 0 DMA32 free:2066200kB min:35996kB low:44992kB high:53988kB active_anon:11980kB inactive_anon:18856kB active_file:21244kB inactive_file:47636kB unevictable:0kB writepending:31484kB present:3129332kB managed:2763452kB mlocked:0kB kernel_stack:6528kB pagetables:1352kB bounce:0kB free_pcp:2296kB local_pcp:1116kB free_cma:0kB lowmem_reserve[]: 0 0 1 1 1 Node 0 Normal free:8kB min:24kB low:28kB high:32kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:2000kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:4039432kB min:53876kB low:67344kB high:80812kB active_anon:0kB inactive_anon:0kB active_file:124kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128248kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB Node 0 DMA32: 1286*4kB (UE) 128*8kB (U) 189*16kB (UE) 150*32kB (UME) 27*64kB (UME) 7*128kB (UM) 5*256kB (UME) 3*512kB (UE) 4*1024kB (UME) 2*2048kB (ME) 498*4096kB (M) = 2067432kB Node 0 Normal: 0*4kB 1*8kB (U) 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 8kB Node 1 Normal: 96*4kB (UME) 397*8kB (UM) 292*16kB (UE) 75*32kB (UME) 30*64kB (UME) 18*128kB (UM) 11*256kB (UME) 7*512kB (UME) 2*1024kB (M) 1*2048kB (U) 980*4096kB (M) = 4039432kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 22151 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 369649 pages reserved 0 pages cma reserved Unreclaimable slab info: Name Used Total TIPC 1KB 7KB SCTPv6 2KB 6KB DCCPv6 2KB 7KB DCCP 2KB 7KB RXRPC 1KB 6KB rxrpc_call_jar 11KB 15KB fib6_nodes 0KB 4KB ip6_dst_cache 3KB 3KB RAWv6 10KB 20KB UDPv6 11KB 15KB TCPv6 6KB 6KB nf_conntrack 19KB 22KB t10_alua_lu_gp_cache 0KB 3KB sd_ext_cdb 0KB 7KB scsi_sense_cache 1056KB 1064KB virtio_scsi_cmd 16KB 16KB sgpool-128 8KB 8KB sgpool-64 4KB 12KB sgpool-32 2KB 15KB sgpool-16 1KB 7KB sgpool-8 0KB 7KB mqueue_inode_cache 1KB 7KB bio_post_read_ctx 14KB 15KB bio-2 14KB 15KB jfs_mp 7KB 7KB cifs_small_rq 15KB 16KB cifs_request 67KB 67KB cifs_mpx_ids 0KB 7KB nfs_commit_data 3KB 14KB nfs_write_data 34KB 44KB ext4_system_zone 1KB 7KB