program: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu/test\x00', 0x777) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup.cpu/test/memory.limit_in_bytes\x00', 0x40102, 0x0) write(r0, &(0x7f0000000180)='100000', 0x6) r1 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./cgroup.cpu/test/memory.oom_control\x00', 0x2, 0x0) write(r1, &(0x7f0000000200)='1', 0x1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./cgroup.cpu/test/cgroup.procs\x00', 0x2, 0x0) write(r2, &(0x7f0000000280)='0', 0x1) r3 = socket$nl_netfilter(0x10, 0x3, 0xc) ioctl$sock_SIOCSIFVLAN_ADD_VLAN_CMD(r3, 0x8983, &(0x7f0000000d00)={0x0, 'syz_tun\x00', {0x4}, 0xa}) mkdir(&(0x7f0000000000)='./file0\x00', 0x0) ioctl$COMEDI_DEVCONFIG(0xffffffffffffffff, 0x40946400, &(0x7f00000000c0)={'das16m1\x00', [0xf, 0x2, 0x10000, 0x4, 0x5, 0xcc7, 0x8, 0x8d, 0xa, 0x0, 0x2, 0x1, 0x1, 0x1, 0x6, 0x101, 0x0, 0x1a449, 0x3, 0x40000003, 0x89, 0xcaa7, 0x0, 0x20001e5c, 0xb, 0xffc00000, 0x3c, 0x8, 0x6, 0xf7ffffff, 0xfffffff8]}) ioctl$sock_SIOCGIFINDEX_80211(0xffffffffffffffff, 0x8933, &(0x7f0000000100)={'wlan1\x00'}) socket$nl_route(0x10, 0x3, 0x0) socket$packet(0x11, 0x2, 0x300) mkdir(&(0x7f00000004c0)='./bus\x00', 0x0) mount(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f0000000140)='ramfs\x00', 0x2008c5a, 0x0) mkdir(&(0x7f0000000440)='./file1\x00', 0x0) mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x0, &(0x7f0000000400)={[{@upperdir={'upperdir', 0x3d, './file1'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@workdir={'workdir', 0x3d, './bus'}}]}) [ 99.477222][ T5315] ? snd_pcm_oss_set_format+0x177/0x510 [ 99.477237][ T5315] ? __might_fault+0xaf/0x130 [ 99.477260][ T5315] exit_to_user_mode_loop+0x104/0x730 [ 99.477274][ T5315] ? rcu_is_watching+0x15/0xb0 [ 99.477293][ T5315] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 99.477307][ T5315] do_syscall_64+0x353/0x580 [ 99.477322][ T5315] ? trace_irq_disable+0x3b/0x140 [ 99.477336][ T5315] ? clear_bhb_loop+0x70/0xc0 [ 99.477350][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 99.477362][ T5315] RIP: 0033:0x7fc2f2b9e0d9 [ 99.477374][ T5315] Code: Unable to access opcode bytes at 0x7fc2f2b9e0af. [ 99.477379][ T5315] RSP: 002b:00007fc2f3b10fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 99.477394][ T5315] RAX: fffffffffffffff4 RBX: 00007fc2f2e25fa0 RCX: 00007fc2f2b9e0d9 [ 99.477402][ T5315] RDX: 0000200000002140 RSI: 00000000c0045005 RDI: 0000000000000004 [ 99.477409][ T5315] RBP: 00007fc2f2c35024 R08: 0000000000000000 R09: 0000000000000000 [ 99.477416][ T5315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 99.477422][ T5315] R13: 00007fc2f2e26038 R14: 00007fc2f2e25fa0 R15: 00007ffeba6c6c88 [ 99.477443][ T5315] [ 99.477504][ T5315] Mem-Info: [ 99.687379][ T73] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.693267][ T5315] active_anon:1640 inactive_anon:10 isolated_anon:0 [ 99.693267][ T5315] active_file:0 inactive_file:39472 isolated_file:0 [ 99.693267][ T5315] unevictable:1000 dirty:0 writeback:0 [ 99.693267][ T5315] slab_reclaimable:6906 slab_unreclaimable:30633 [ 99.693267][ T5315] mapped:1110 shmem:1453 pagetables:300 [ 99.693267][ T5315] sec_pagetables:291 bounce:0 [ 99.693267][ T5315] kernel_misc_reclaimable:0 [ 99.693267][ T5315] free:53270 free_pcp:685 free_cma:0 [ 99.719934][ T5315] Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:0kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:2048kB pagetables:504kB sec_pagetables:1088kB all_unreclaimable? yes Balloon:0kB gpu_active:0kB gpu_reclaim:0kB [ 99.733703][ T5315] Node 0 DMA free:1512kB boost:2048kB min:2808kB low:2996kB high:3184kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 99.763110][ T5315] lowmem_reserve[]: 0 109 109 109 109 [ 99.768940][ T5315] Node 0 DMA32 free:6148kB boost:2048kB min:6180kB low:7212kB high:8244kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:770052kB managed:111960kB mlocked:0kB bounce:0kB free_pcp:2740kB local_pcp:2740kB free_cma:0kB [ 99.794140][ T73] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.805869][ T5315] lowmem_reserve[]: 0 0 0 0 0 [ 99.808040][ T5315] Node 0 DMA: 12*4kB (UE) 7*8kB (UE) 2*16kB (U) 21*32kB (U) 1*64kB (E) 1*128kB (E) 0*256kB 1*512kB (E) 0*1024kB 0*2048kB 0*4096kB = 1512kB [ 99.827033][ T5315] Node 0 DMA32: 67*4kB (UME) 31*8kB (UME) 12*16kB (UME) 48*32kB (UME) 7*64kB (UM) 5*128kB (UME) 1*256kB (U) 1*512kB (E) 2*1024kB (ME) 0*2048kB 0*4096kB = 6148kB [ 99.836675][ T73] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.842742][ T5315] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 99.850506][ T5315] Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB [ 99.858506][ T5315] 40973 total pagecache pages [ 99.860659][ T5315] 45 pages in swap cache [ 99.884165][ T73] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 99.891396][ T5315] Free swap = 124464kB [ 99.893751][ T5315] Total swap = 124996kB [ 99.895570][ T5315] 393083 pages RAM [ 99.897185][ T5315] 0 pages HighMem/MovableOnly [ 99.899164][ T5315] 188550 pages reserved [ 99.905006][ T5315] 0 pages cma reserved [ 99.906799][ T5315] Out of memory and no killable processes... [ 99.909434][ T5315] Kernel panic - not syncing: System is deadlocked on memory [ 99.912473][ T5315] CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 99.916082][ T5315] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 99.920213][ T5315] Call Trace: [ 99.921608][ T5315] [ 99.922796][ T5315] vpanic+0x56c/0xa60 [ 99.924424][ T5315] ? __pfx_vprintk_emit+0x10/0x10 [ 99.926485][ T5315] ? __pfx_vpanic+0x10/0x10 [ 99.928330][ T5315] panic+0xc5/0xd0 [ 99.929847][ T5315] ? __pfx_panic+0x10/0x10 [ 99.931654][ T5315] ? dump_header+0x140/0x4b0 [ 99.933561][ T5315] out_of_memory+0x13e5/0x1480 [ 99.935524][ T5315] ? __pfx_out_of_memory+0x10/0x10 [ 99.937692][ T5315] __alloc_pages_may_oom+0x1ea/0x330 [ 99.940006][ T5315] ? __pfx___alloc_pages_may_oom+0x10/0x10 [ 99.942942][ T5315] __alloc_pages_slowpath+0x6e8/0xcc0 [ 99.945504][ T5315] __alloc_frozen_pages_noprof+0x31f/0x380 [ 99.947943][ T5315] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10 [ 99.950695][ T5315] ? __pfx_policy_nodemask+0x10/0x10 [ 99.952987][ T5315] ? lruvec_stat_mod_folio+0x6e/0x3e0 [ 99.955298][ T5315] alloc_pages_mpol+0x212/0x380 [ 99.957365][ T5315] alloc_pages_noprof+0xac/0x2a0 [ 99.959484][ T5315] __vmalloc_node_range_noprof+0xe2b/0x1730 [ 99.962112][ T5315] ? __pfx___vmalloc_node_range_noprof+0x10/0x10 [ 99.964835][ T5315] ? __mutex_unlock_slowpath+0x731/0x900 [ 99.967240][ T5315] ? snd_dma_alloc_dir_pages+0x120/0x220 [ 99.969642][ T5315] vmalloc_noprof+0xb2/0xe0 [ 99.971613][ T5315] ? snd_dma_alloc_dir_pages+0x120/0x220 [ 99.973970][ T5315] snd_dma_alloc_dir_pages+0x120/0x220 [ 99.976230][ T5315] do_alloc_pages+0x11c/0x260 [ 99.978258][ T5315] snd_pcm_lib_malloc_pages+0x33a/0x780 [ 99.980617][ T5315] snd_pcm_hw_params+0x870/0x1d50 [ 99.982627][ T5315] ? do_raw_spin_lock+0x12b/0x2f0 [ 99.984698][ T5315] ? __pfx_snd_pcm_hw_params+0x10/0x10 [ 99.986959][ T5315] ? _raw_spin_unlock_irqrestore+0x30/0x80 [ 99.989357][ T5315] ? snd_pcm_kernel_ioctl+0x336/0xa70 [ 99.991463][ T5315] snd_pcm_oss_change_params_locked+0x1e90/0x3c80 [ 99.994030][ T5315] ? __pfx_snd_pcm_oss_change_params_locked+0x10/0x10 [ 99.996777][ T5315] ? __pfx_ima_file_free+0x10/0x10 [ 99.998622][ T5315] ? __asan_memset+0x22/0x50 [ 100.000638][ T5315] snd_pcm_oss_sync+0x57d/0xdf0 [ 100.002584][ T5315] snd_pcm_oss_release+0xff/0x250 [ 100.004750][ T5315] ? __pfx_snd_pcm_oss_release+0x10/0x10 [ 100.007055][ T5315] __fput+0x418/0xa50 [ 100.008672][ T5315] task_work_run+0x1d9/0x270 [ 100.010520][ T5315] ? __pfx_task_work_run+0x10/0x10 [ 100.012537][ T5315] ? do_raw_spin_unlock+0x4d/0x210 [ 100.014621][ T5315] do_exit+0x73a/0x2360 [ 100.016255][ T5315] ? __pfx_do_exit+0x10/0x10 [ 100.018208][ T5315] ? do_raw_spin_lock+0x12b/0x2f0 [ 100.020343][ T5315] do_group_exit+0x22d/0x2f0 [ 100.022260][ T5315] ? _raw_spin_unlock_irq+0x23/0x50 [ 100.024411][ T5315] get_signal+0x121b/0x12c0 [ 100.026328][ T5315] arch_do_signal_or_restart+0xbb/0x860 [ 100.028714][ T5315] ? snd_pcm_oss_get_active_substream+0x231/0x280 [ 100.031360][ T5315] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 100.033942][ T5315] ? snd_pcm_oss_set_format+0x177/0x510 [ 100.036225][ T5315] ? __might_fault+0xaf/0x130 [ 100.038161][ T5315] exit_to_user_mode_loop+0x104/0x730 [ 100.040475][ T5315] ? rcu_is_watching+0x15/0xb0 [ 100.042500][ T5315] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 100.044943][ T5315] do_syscall_64+0x353/0x580 [ 100.046843][ T5315] ? trace_irq_disable+0x3b/0x140 [ 100.048862][ T5315] ? clear_bhb_loop+0x70/0xc0 [ 100.050787][ T5315] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 100.053254][ T5315] RIP: 0033:0x7fc2f2b9e0d9 [ 100.055160][ T5315] Code: Unable to access opcode bytes at 0x7fc2f2b9e0af. [ 100.058008][ T5315] RSP: 002b:00007fc2f3b10fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 100.061496][ T5315] RAX: fffffffffffffff4 RBX: 00007fc2f2e25fa0 RCX: 00007fc2f2b9e0d9 [ 100.064622][ T5315] RDX: 0000200000002140 RSI: 00000000c0045005 RDI: 0000000000000004 [ 100.067798][ T5315] RBP: 00007fc2f2c35024 R08: 0000000000000000 R09: 0000000000000000 [ 100.070965][ T5315] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 100.074339][ T5315] R13: 00007fc2f2e26038 R14: 00007fc2f2e25fa0 R15: 00007ffeba6c6c88 [ 100.077954][ T5315] [ 100.079733][ T5315] Kernel Offset: disabled [ 100.081584][ T5315] Rebooting in 86400 seconds.. [ 95.534979][ T5278] Bluetooth: hci0: command tx timeout [ 95.683211][ T5315] oom_control is deprecated and will be removed. Please report your usecase to linux-mm-@kvack.org if you depend on this functionality. [ 95.736709][ T5315] ======================================================= [ 95.736709][ T5315] WARNING: The mand mount option has been deprecated and [ 95.736709][ T5315] and is ignored by this kernel. Remove the mand [ 95.736709][ T5315] option from the mount to silence this warning. [ 95.736709][ T5315] =======================================================