snd_pcm_lib_malloc_pages+0x33a/0x790 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x816/0x1d60 sound/core/pcm_native.c:801 snd_pcm_oss_change_params_locked+0x201f/0x3e00 sound/core/oss/pcm_oss.c:965 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1106 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1165 [inline] snd_pcm_oss_sync+0x43a/0xfc0 sound/core/oss/pcm_oss.c:1731 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2575 __fput+0x44f/0xa70 fs/file_table.c:468 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x69b/0x2310 kernel/exit.c:971 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112 get_signal+0x1284/0x1330 kernel/signal.c:3034 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa3b459aeb9 Code: Unable to access opcode bytes at 0x7fa3b459ae8f. RSP: 002b:00007fa3b53f4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000005 RBX: 00007fa3b4816090 RCX: 00007fa3b459aeb9 RDX: 0000000000000042 RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007fa3b4608c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa3b4816128 R14: 00007fa3b4816090 R15: 00007fff0ca18de8 Mem-Info: active_anon:1919 inactive_anon:89 isolated_anon:0 active_file:826 inactive_file:39034 isolated_file:0 unevictable:1768 dirty:0 writeback:0 slab_reclaimable:7275 slab_unreclaimable:30418 mapped:1068 shmem:2305 pagetables:394 sec_pagetables:289 bounce:0 kernel_misc_reclaimable:0 free:53462 free_pcp:613 free_cma:0 Node 0 active_anon:8kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:0kB shmem_thp:0kB shmem_pmdmapped:0kB anon_thp:0kB kernel_stack:3296kB pagetables:476kB sec_pagetables:1084kB all_unreclaimable? yes Balloon:0kB Node 0 DMA free:1220kB 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:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:32kB local_pcp:32kB free_cma:0kB lowmem_reserve[]: 0 115 115 115 115 Node 0 DMA32 free:4164kB boost:2048kB min:6572kB low:7700kB high:8828kB reserved_highatomic:0KB free_highatomic:0KB active_anon:8kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:770052kB managed:118344kB mlocked:0kB bounce:0kB free_pcp:2420kB local_pcp:2420kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 17*4kB (U) 2*8kB (U) 1*16kB (U) 11*32kB (U) 2*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 1220kB Node 0 DMA32: 3*4kB (UM) 7*8kB (UME) 4*16kB (ME) 8*32kB (UME) 5*64kB (ME) 5*128kB (UM) 3*256kB (UM) 2*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 4164kB 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 42199 total pagecache pages 35 pages in swap cache Free swap = 108644kB Total swap = 124996kB 393083 pages RAM 0 pages HighMem/MovableOnly 186954 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: 5322 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+0x1e0/0x670 kernel/panic.c:490 panic+0xc5/0xd0 kernel/panic.c:627 out_of_memory+0x1378/0x1410 mm/oom_kill.c:1182 __alloc_pages_may_oom+0x1ea/0x330 mm/page_alloc.c:4122 __alloc_pages_slowpath+0x726/0xd40 mm/page_alloc.c:4927 __alloc_frozen_pages_noprof+0x322/0x380 mm/page_alloc.c:5253 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486 alloc_frozen_pages_noprof mm/mempolicy.c:2557 [inline] alloc_pages_noprof+0xa8/0x190 mm/mempolicy.c:2577 vm_area_alloc_pages mm/vmalloc.c:3718 [inline] __vmalloc_area_node mm/vmalloc.c:3863 [inline] __vmalloc_node_range_noprof+0xc22/0x1730 mm/vmalloc.c:4051 __vmalloc_node_noprof mm/vmalloc.c:4111 [inline] vmalloc_noprof+0xb2/0xe0 mm/vmalloc.c:4146 __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+0x175/0x2c0 sound/core/pcm_memory.c:69 snd_pcm_lib_malloc_pages+0x33a/0x790 sound/core/pcm_memory.c:455 snd_pcm_hw_params+0x816/0x1d60 sound/core/pcm_native.c:801 snd_pcm_oss_change_params_locked+0x201f/0x3e00 sound/core/oss/pcm_oss.c:965 snd_pcm_oss_change_params sound/core/oss/pcm_oss.c:1106 [inline] snd_pcm_oss_make_ready sound/core/oss/pcm_oss.c:1165 [inline] snd_pcm_oss_sync+0x43a/0xfc0 sound/core/oss/pcm_oss.c:1731 snd_pcm_oss_release+0xff/0x250 sound/core/oss/pcm_oss.c:2575 __fput+0x44f/0xa70 fs/file_table.c:468 task_work_run+0x1d9/0x270 kernel/task_work.c:233 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x69b/0x2310 kernel/exit.c:971 do_group_exit+0x21b/0x2d0 kernel/exit.c:1112 get_signal+0x1284/0x1330 kernel/signal.c:3034 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:75 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa3b459aeb9 Code: Unable to access opcode bytes at 0x7fa3b459ae8f. RSP: 002b:00007fa3b53f4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: 0000000000000005 RBX: 00007fa3b4816090 RCX: 00007fa3b459aeb9 RDX: 0000000000000042 RSI: 0000200000000080 RDI: ffffffffffffff9c RBP: 00007fa3b4608c1f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa3b4816128 R14: 00007fa3b4816090 R15: 00007fff0ca18de8 Kernel Offset: disabled Rebooting in 86400 seconds..