do_hw_free sound/core/pcm_native.c:916 [inline] snd_pcm_release_substream+0x2b7/0x480 sound/core/pcm_native.c:2740 snd_pcm_oss_release_file sound/core/oss/pcm_oss.c:2401 [inline] snd_pcm_oss_release+0x144/0x250 sound/core/oss/pcm_oss.c:2580 __fput+0x44c/0xa70 fs/file_table.c:468 task_work_run+0x1d4/0x260 kernel/task_work.c:233 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] __exit_to_user_mode_loop kernel/entry/common.c:44 [inline] exit_to_user_mode_loop+0xef/0x4e0 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+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:3579! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 12438 Comm: syz.2.1890 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:filemap_fault+0x1215/0x1290 mm/filemap.c:3579 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 25 29 2d 00 e9 81 fc ff ff e8 1b 54 c6 ff 48 89 df 48 c7 c6 c0 b6 94 8b e8 9c f3 2c ff 90 <0f> 0b e8 04 54 c6 ff 48 8b 3c 24 48 c7 c6 40 bd 94 8b e8 84 f3 2c RSP: 0018:ffffc9000d70f9c0 EFLAGS: 00010246 RAX: 1d3fa5060b4f4400 RBX: ffffea000136ff00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff RBP: ffffc9000d70faf8 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: dffffc0000000000 R13: 1ffffd400026dfe1 R14: ffffea000136ff18 R15: ffffea000136ff08 FS: 00007f87e89c86c0(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001900 CR3: 000000003004c000 CR4: 00000000003526f0 Call Trace: __do_fault+0x138/0x390 mm/memory.c:5302 do_read_fault mm/memory.c:5737 [inline] do_fault mm/memory.c:5871 [inline] do_pte_missing+0x2206/0x3330 mm/memory.c:4416 handle_pte_fault mm/memory.c:6255 [inline] __handle_mm_fault mm/memory.c:6393 [inline] handle_mm_fault+0x1b26/0x32b0 mm/memory.c:6562 do_user_addr_fault+0xa7c/0x1380 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x71/0xd0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7f87e7a606f9 Code: 24 18 31 ed 4a 8d 54 16 08 4e 8d 0c 16 4c 89 d3 48 89 d7 4d 89 cf ba 01 00 00 00 f3 48 ab 49 8d 46 12 4d 89 71 08 49 89 41 10 <41> 0f b6 46 04 41 0f b6 4e 1a 88 cc 66 42 89 44 16 18 41 8d 45 ee RSP: 002b:00007f87e89c5f70 EFLAGS: 00010246 RAX: 0000200000000092 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000001 RSI: 00007f87e7f10320 RDI: 00007f87e7f10b88 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007f87e7f10320 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000036 R14: 0000200000000080 R15: 00007f87e7f10320 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:filemap_fault+0x1215/0x1290 mm/filemap.c:3579 Code: 38 c1 0f 8c 8e fc ff ff 4c 89 e7 e8 25 29 2d 00 e9 81 fc ff ff e8 1b 54 c6 ff 48 89 df 48 c7 c6 c0 b6 94 8b e8 9c f3 2c ff 90 <0f> 0b e8 04 54 c6 ff 48 8b 3c 24 48 c7 c6 40 bd 94 8b e8 84 f3 2c RSP: 0018:ffffc9000d70f9c0 EFLAGS: 00010246 RAX: 1d3fa5060b4f4400 RBX: ffffea000136ff00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8daba6d0 RDI: 00000000ffffffff RBP: ffffc9000d70faf8 R08: ffffffff8fc479f7 R09: 1ffffffff1f88f3e R10: dffffc0000000000 R11: fffffbfff1f88f3f R12: dffffc0000000000 R13: 1ffffd400026dfe1 R14: ffffea000136ff18 R15: ffffea000136ff08 FS: 00007f87e89c86c0(0000) GS:ffff8881259ad000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001900 CR3: 000000003004c000 CR4: 00000000003526f0