snd_pcm_lib_malloc_pages+0x33a/0x780 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x870/0x1d50 sound/core/pcm_native.c:828 snd_pcm_oss_change_params_locked+0x1e90/0x3c80 sound/core/oss/pcm_oss.c:967 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1108 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1167 [inline] snd_pcm_oss_sync+0x43e/0xdf0 sound/core/oss/pcm_oss.c:1739 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2590 __fput+0x418/0xa50 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x73a/0x2360 kernel/exit.c:1009 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152 get_signal+0x121b/0x12c0 kernel/signal.c:3046 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1bea19de59 Code: Unable to access opcode bytes at 0x7f1bea19de2f. RSP: 002b:00007f1beb002fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffff4 RBX: 00007f1bea426090 RCX: 00007f1bea19de59 RDX: 0000200000000000 RSI: 00000000c0045005 RDI: 000000000000000c RBP: 00007f1bea233e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1bea426128 R14: 00007f1bea426090 R15: 00007ffc27933e58 Mem-Info: active_anon:1226 inactive_anon:53 isolated_anon:0 active_file:2 inactive_file:39418 isolated_file:0 unevictable:1768 dirty:0 writeback:0 slab_reclaimable:6968 slab_unreclaimable:30979 mapped:965 shmem:2184 pagetables:298 sec_pagetables:290 bounce:0 kernel_misc_reclaimable:0 free:51603 free_pcp:456 free_cma:0 Node 0 active_anon:0kB inactive_anon:16kB active_file:8kB inactive_file:0kB unevictable:156kB isolated(anon):0kB isolated(file):0kB mapped:16kB dirty:0kB writeback:0kB shmem:156kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:2048kB pagetables:512kB sec_pagetables:1108kB all_unreclaimable? yes Balloon:0kB gpu_active:0kB gpu_reclaim:0kB Node 0 DMA free:1120kB boost:0kB min:760kB low:948kB high:1136kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:156kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:124kB local_pcp:124kB free_cma:0kB lowmem_reserve[]: 0 109 109 109 109 Node 0 DMA32 free:4032kB boost:0kB min:4132kB low:5164kB high:6196kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:16kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:770052kB managed:112032kB mlocked:0kB bounce:0kB free_pcp:1700kB local_pcp:1700kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 0*4kB 0*8kB 0*16kB 1*32kB (U) 1*64kB (U) 0*128kB 0*256kB 0*512kB 1*1024kB (U) 0*2048kB 0*4096kB = 1120kB Node 0 DMA32: 12*4kB (ME) 14*8kB (ME) 18*16kB (UME) 12*32kB (ME) 10*64kB (UME) 8*128kB (UME) 4*256kB (UME) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 4032kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=2 hugepages_free=2 hugepages_surp=0 hugepages_size=2048kB 41669 total pagecache pages 66 pages in swap cache Free swap = 122904kB Total swap = 124996kB 393083 pages RAM 0 pages HighMem/MovableOnly 188532 pages reserved 0 pages cma reserved Out of memory and no killable processes... Kernel panic - not syncing: System is deadlocked on memory CPU: 0 UID: 0 PID: 5338 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: vpanic+0x56c/0xa60 kernel/panic.c:651 panic+0xc5/0xd0 kernel/panic.c:788 out_of_memory+0x13e5/0x1480 mm/oom_kill.c:1166 __alloc_pages_may_oom+0x1ea/0x330 mm/page_alloc.c:4116 __alloc_pages_slowpath+0x6e8/0xcc0 mm/page_alloc.c:4967 __alloc_frozen_pages_noprof+0x31f/0x380 mm/page_alloc.c:5317 alloc_pages_mpol+0x212/0x380 mm/mempolicy.c:2490 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline] alloc_pages_noprof+0xac/0x2a0 mm/mempolicy.c:2581 vm_area_alloc_pages mm/vmalloc.c:3742 [inline] __vmalloc_area_node mm/vmalloc.c:3892 [inline] __vmalloc_node_range_noprof+0xe2b/0x1730 mm/vmalloc.c:4082 __vmalloc_node_noprof mm/vmalloc.c:4143 [inline] vmalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4178 __snd_dma_alloc_pages sound/core/memalloc.c:45 [inline] snd_dma_alloc_dir_pages+0x120/0x220 sound/core/memalloc.c:79 do_alloc_pages+0x11c/0x260 sound/core/pcm_memory.c:69 snd_pcm_lib_malloc_pages+0x33a/0x780 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x870/0x1d50 sound/core/pcm_native.c:828 snd_pcm_oss_change_params_locked+0x1e90/0x3c80 sound/core/oss/pcm_oss.c:967 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1108 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1167 [inline] snd_pcm_oss_sync+0x43e/0xdf0 sound/core/oss/pcm_oss.c:1739 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2590 __fput+0x418/0xa50 fs/file_table.c:512 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x73a/0x2360 kernel/exit.c:1009 do_group_exit+0x22d/0x2f0 kernel/exit.c:1152 get_signal+0x121b/0x12c0 kernel/signal.c:3046 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline] exit_to_user_mode_loop+0x104/0x730 kernel/entry/common.c:101 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline] do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1bea19de59 Code: Unable to access opcode bytes at 0x7f1bea19de2f. RSP: 002b:00007f1beb002fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffff4 RBX: 00007f1bea426090 RCX: 00007f1bea19de59 RDX: 0000200000000000 RSI: 00000000c0045005 RDI: 000000000000000c RBP: 00007f1bea233e6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f1bea426128 R14: 00007f1bea426090 R15: 00007ffc27933e58 Kernel Offset: disabled Rebooting in 86400 seconds..