general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 PID: 9989 Comm: syz-executor.5 Not tainted 5.13.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x67/0x100 lib/list_debug.c:51 Code: 4c 89 f7 e8 9b a7 c6 fd 48 ba 00 01 00 00 00 00 ad de 49 8b 1e 48 39 d3 74 53 48 83 c2 22 49 39 d7 74 5d 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 6a a7 c6 fd 49 8b 17 4c 39 f2 75 RSP: 0018:ffffc9000bacf590 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880190e54c0 RDX: dead000000000122 RSI: ffffffff8cdeada0 RDI: ffff88802920b860 RBP: dffffc0000000000 R08: 0000000000000005 R09: ffffffff816335ff R10: 0000000000000003 R11: ffff8880190e54c0 R12: dffffc0000000000 R13: 1ffff11005241709 R14: ffff88802920b858 R15: 0000000000000000 FS: 00007f133b30a700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff68face5c CR3: 0000000018b54000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:132 [inline] list_del_init include/linux/list.h:204 [inline] plist_del+0x2e3/0x420 lib/plist.c:130 pm_qos_update_target+0x20c/0x5c0 kernel/power/qos.c:114 cpu_latency_qos_apply kernel/power/qos.c:247 [inline] cpu_latency_qos_remove_request+0x94/0xd0 kernel/power/qos.c:328 snd_pcm_hw_free sound/core/pcm_native.c:842 [inline] snd_pcm_common_ioctl+0x62e5/0x9760 sound/core/pcm_native.c:3219 snd_pcm_ioctl+0x86/0xa0 sound/core/pcm_native.c:3302 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:1069 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:1055 do_syscall_64+0x3f/0xb0 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665d9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f133b30a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665d9 RDX: 0000000000000000 RSI: 0000000000004112 RDI: 0000000000000004 RBP: 00000000004bfcb9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd68562d1f R14: 00007f133b30a300 R15: 0000000000022000 Modules linked in: ---[ end trace bc5d821852e61222 ]--- RIP: 0010:__list_del_entry_valid+0x67/0x100 lib/list_debug.c:51 Code: 4c 89 f7 e8 9b a7 c6 fd 48 ba 00 01 00 00 00 00 ad de 49 8b 1e 48 39 d3 74 53 48 83 c2 22 49 39 d7 74 5d 4c 89 f8 48 c1 e8 03 <42> 80 3c 20 00 74 08 4c 89 ff e8 6a a7 c6 fd 49 8b 17 4c 39 f2 75 RSP: 0018:ffffc9000bacf590 EFLAGS: 00010046 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880190e54c0 RDX: dead000000000122 RSI: ffffffff8cdeada0 RDI: ffff88802920b860 RBP: dffffc0000000000 R08: 0000000000000005 R09: ffffffff816335ff R10: 0000000000000003 R11: ffff8880190e54c0 R12: dffffc0000000000 R13: 1ffff11005241709 R14: ffff88802920b858 R15: 0000000000000000 FS: 00007f133b30a700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff68face5c CR3: 0000000018b54000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400