------------[ cut here ]------------ WARNING: CPU: 2 PID: 7939 at sound/core/info.c:609 snd_info_get_line+0x26a/0x320 sound/core/info.c:609 Kernel panic - not syncing: panic_on_warn set ... CPU: 2 PID: 7939 Comm: syz-executor.2 Not tainted 5.8.0-rc5-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:231 __warn.cold+0x20/0x45 kernel/panic.c:600 report_bug+0x1bd/0x210 lib/bug.c:198 handle_bug+0x38/0x90 arch/x86/kernel/traps.c:235 exc_invalid_op+0x13/0x40 arch/x86/kernel/traps.c:255 asm_exc_invalid_op+0x12/0x20 arch/x86/include/asm/idtentry.h:542 RIP: 0010:snd_info_get_line+0x26a/0x320 sound/core/info.c:609 Code: 85 b3 00 00 00 48 8b 44 24 10 c6 00 00 e8 6e 46 6c fb 8b 44 24 0c 48 83 c4 28 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 56 46 6c fb <0f> 0b c7 44 24 0c 01 00 00 00 eb d7 e8 45 46 6c fb 48 8b 74 24 10 RSP: 0018:ffffc90002237ae8 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888027aa4e00 RCX: 0000000000000000 RDX: ffff888063574240 RSI: ffffffff860773aa RDI: ffff888027aa4e00 RBP: 0000000000000080 R08: 0000000000000000 R09: ffff888072f4a0db R10: ffffed100e5e941b R11: 0000000000000000 R12: ffff888064c7a840 R13: dffffc0000000000 R14: ffff888027106e08 R15: ffff888027aa4e00 snd_mixer_oss_proc_write+0xe2/0x530 sound/core/oss/mixer_oss.c:1179 snd_info_text_entry_release+0xfa/0x260 sound/core/info.c:409 close_pdeo.part.0+0xdc/0x2e0 fs/proc/inode.c:244 close_pdeo fs/proc/inode.c:562 [inline] proc_reg_release+0x2e9/0x360 fs/proc/inode.c:561 __fput+0x33c/0x880 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:135 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop arch/x86/entry/common.c:239 [inline] __prepare_exit_to_usermode+0x1e9/0x1f0 arch/x86/entry/common.c:269 __do_fast_syscall_32 arch/x86/entry/common.c:475 [inline] do_fast_syscall_32+0x7f/0x120 arch/x86/entry/common.c:503 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f0f569 Code: Bad RIP value. RSP: 002b:00000000ff9e6b8c EFLAGS: 00000293 ORIG_RAX: 0000000000000006 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000008155000 RSI: 0000000000000004 RDI: 0000000008180130 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..