program: r0 = openat$comedi(0xffffff9c, &(0x7f0000000040)='/dev/comedi3\x00', 0x2000, 0x0) ioctl$COMEDI_DEVCONFIG(r0, 0x40946400, &(0x7f0000000140)={'8255\x00', [0xfffffffb, 0x2166, 0x2, 0x100003, 0x88d6, 0x8f, 0xfffffffd, 0x10, 0x2, 0xffffffdf, 0x200, 0xfff, 0x344, 0x5, 0x2, 0x200, 0x9, 0x3, 0x3, 0xe, 0x4, 0x401, 0x80, 0x7ff, 0x1, 0x1, 0xb0c2, 0x7df, 0x8, 0xf3, 0x80000001]}) ioctl$COMEDI_INSNLIST(r0, 0x8010640b, &(0x7f0000000000)={0x1, &(0x7f00000edb00)=[{0x4000000, 0x0, 0x0, 0x8, 0xb}]}) r1 = add_key(&(0x7f0000000080)='user\x00', &(0x7f0000000000)={'syz', 0x2}, &(0x7f0000000040)='9', 0x1, 0xfffffffffffffffc) keyctl$chown(0x4, r1, 0xee00, 0xffffffffffffffff) r2 = socket$nl_route(0x10, 0x3, 0x0) r3 = socket$tipc(0x1e, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'syz_tun\x00', 0x0}) sendmsg$nl_route(r2, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=ANY=[@ANYBLOB="4c0000001000010400"/20, @ANYRES32=0x0, @ANYBLOB="03000000000000001c0012800c0001006d6163766c616e000c000280080001000800000008000500", @ANYRES32=r4], 0x4c}}, 0x0) syz_emit_ethernet(0x46, &(0x7f0000003d00)={@multicast, @local, @val={@val={0x88a8, 0x4, 0x0, 0x4}, {0x8100, 0x1, 0x1}}, {@mpls_uc={0x8847, {[], @ipv6=@udp={0x3, 0x6, "cb3d20", 0x8, 0x11, 0xff, @local, @empty, {[], {0x4e24, 0x4e23, 0x8}}}}}}}, 0x0) r5 = add_key(&(0x7f0000000000)='cifs.spnego\x00', &(0x7f0000000040)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff) mount$nfs4(&(0x7f00000000c0)='user\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000140), 0x20110, &(0x7f0000000180)={[{'cifs.spnego\x00'}], [{@fsuuid={'fsuuid', 0x3d, {[0x35, 0x64, 0x31, 0x0, 0x62, 0x39, 0x4, 0x63], 0x2d, [0x62, 0x62, 0x31, 0x30], 0x2d, [0x64, 0x32, 0x66, 0x61], 0x2d, [0x37, 0x62, 0x65, 0x66], 0x2d, [0x37, 0x36, 0x61, 0x35, 0x66, 0x34, 0x61, 0x31]}}}]}) keyctl$KEYCTL_WATCH_KEY(0x1d, r5, 0xffffffffffffffff, 0x7c) keyctl$setperm(0x5, r1, 0x0) ioctl$KVM_CAP_EXIT_ON_EMULATION_FAILURE(0xffffffffffffffff, 0x4068aea3, &(0x7f0000000200)={0xcc, 0x0, 0x1}) keyctl$chown(0x4, r1, 0x0, 0x0) [ 74.373180][ T4689] Bluetooth: hci0: command tx timeout [ 74.414642][ T5341] comedi comedi3: 8255: I/O port conflict (0xfffffffffffffffb,4) [ 74.452023][ T5341] comedi comedi3: 8255: I/O port conflict (0x2,4) [ 74.455292][ T5341] comedi comedi3: 8255: I/O port conflict (0x100003,4) [ 74.458694][ T5341] comedi comedi3: 8255: I/O port conflict (0x8f,4) [ 74.474003][ T5341] comedi comedi3: 8255: I/O port conflict (0xfffffffffffffffd,4) [ 74.478202][ T5341] comedi comedi3: 8255: I/O port conflict (0x10,4) [ 74.492437][ T5341] comedi comedi3: 8255: I/O port conflict (0x2,4) [ 74.496197][ T5341] comedi comedi3: 8255: I/O port conflict (0xffffffffffffffdf,4) [ 74.500529][ T5341] comedi comedi3: 8255: I/O port conflict (0xfff,4) [ 74.508301][ T5341] comedi comedi3: 8255: I/O port conflict (0x5,4) [ 74.513843][ T5341] comedi comedi3: 8255: I/O port conflict (0x2,4) [ 74.517413][ T5341] comedi comedi3: 8255: I/O port conflict (0x200,4) [ 74.520709][ T5341] comedi comedi3: 8255: I/O port conflict (0x9,4) [ 74.524621][ T5341] comedi comedi3: 8255: I/O port conflict (0x3,4) [ 74.527975][ T5341] comedi comedi3: 8255: I/O port conflict (0x3,4) [ 74.532358][ T5341] comedi comedi3: 8255: I/O port conflict (0xe,4) [ 74.535904][ T5341] comedi comedi3: 8255: I/O port conflict (0x4,4) [ 74.539205][ T5341] comedi comedi3: 8255: I/O port conflict (0x80,4) [ 74.542429][ T5341] comedi comedi3: 8255: I/O port conflict (0x1,4) [ 74.545371][ T5341] comedi comedi3: 8255: I/O port conflict (0x1,4) [ 74.548462][ T5341] comedi comedi3: 8255: I/O port conflict (0x8,4) [ 74.553343][ T5341] comedi comedi3: 8255: I/O port conflict (0xf3,4) [ 74.557757][ T5341] comedi comedi3: 8255: I/O port conflict (0xffffffff80000001,4) [ 74.576696][ T5343] syz_tun: entered promiscuous mode [ 74.579649][ T5342] ------------[ cut here ]------------ [ 74.582227][ T5342] WARNING: CPU: 0 PID: 5342 at mm/page_alloc.c:4935 __alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.587436][ T5342] Modules linked in: [ 74.589680][ T5342] CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00121-g6832a9317eee #0 PREEMPT(full) [ 74.596390][ T5342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.601531][ T5342] RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.604685][ T5342] Code: 74 10 4c 89 e7 89 54 24 0c e8 34 14 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 6b 3b 75 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 [ 74.613639][ T5342] RSP: 0018:ffffc9000d59f960 EFLAGS: 00010246 [ 74.616275][ T5342] RAX: ffffc9000d59f900 RBX: 0000000000000017 RCX: 0000000000000000 [ 74.619942][ T5342] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000d59f9c8 [ 74.623956][ T5342] RBP: ffffc9000d59fa50 R08: ffffc9000d59f9c7 R09: 0000000000000000 [ 74.627494][ T5342] R10: ffffc9000d59f9a0 R11: fffff52001ab3f39 R12: 0000000000000000 [ 74.632177][ T5342] R13: 1ffff92001ab3f30 R14: 0000000000040dc0 R15: dffffc0000000000 [ 74.637180][ T5342] FS: 00007f8f899c86c0(0000) GS:ffff88808d21a000(0000) knlGS:0000000000000000 [ 74.641726][ T5342] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.644951][ T5342] CR2: 00007f8f899a6fc8 CR3: 0000000043e5c000 CR4: 0000000000352ef0 [ 74.648102][ T5342] Call Trace: [ 74.649518][ T5342] [ 74.650906][ T5342] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10 [ 74.653463][ T5342] __alloc_pages_noprof+0xa/0x30 [ 74.655503][ T5342] ___kmalloc_large_node+0x85/0x210 [ 74.657816][ T5342] __kmalloc_large_node_noprof+0x18/0x90 [ 74.660307][ T5342] __kmalloc_noprof+0x36f/0x4f0 [ 74.662668][ T5342] ? comedi_unlocked_ioctl+0x9ee/0xf40 [ 74.667900][ T5342] comedi_unlocked_ioctl+0x9ee/0xf40 [ 74.672437][ T5342] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.675375][ T5342] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 74.678003][ T5342] ? tomoyo_path_number_perm+0x4e2/0x5a0 [ 74.680612][ T5342] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 74.683734][ T5342] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 74.686786][ T5342] ? __lock_acquire+0xab9/0xd20 [ 74.689148][ T5342] ? __fget_files+0x2a/0x420 [ 74.691586][ T5342] ? __fget_files+0x2a/0x420 [ 74.695607][ T5342] ? __fget_files+0x3a0/0x420 [ 74.698253][ T5342] ? __fget_files+0x2a/0x420 [ 74.700977][ T5342] ? bpf_lsm_file_ioctl+0x9/0x20 [ 74.703591][ T5342] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.708276][ T5342] __se_sys_ioctl+0xf9/0x170 [ 74.711229][ T5342] do_syscall_64+0xfa/0x3b0 [ 74.713351][ T5342] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.715713][ T5342] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.718393][ T5342] ? clear_bhb_loop+0x60/0xb0 [ 74.720361][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.723039][ T5342] RIP: 0033:0x7f8f88b8e9a9 [ 74.725037][ T5342] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 74.733756][ T5342] RSP: 002b:00007f8f899c8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.737455][ T5342] RAX: ffffffffffffffda RBX: 00007f8f88db6080 RCX: 00007f8f88b8e9a9 [ 74.742476][ T5342] RDX: 0000200000000000 RSI: 000000008010640b RDI: 0000000000000003 [ 74.746580][ T5342] RBP: 00007f8f88c10d69 R08: 0000000000000000 R09: 0000000000000000 [ 74.750031][ T5342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.753780][ T5342] R13: 0000000000000001 R14: 00007f8f88db6080 R15: 00007ffee23604b8 [ 74.757258][ T5342] [ 74.758690][ T5342] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 74.761828][ T5342] CPU: 0 UID: 0 PID: 5342 Comm: syz.0.0 Not tainted 6.16.0-rc6-syzkaller-00121-g6832a9317eee #0 PREEMPT(full) [ 74.766745][ T5342] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.771571][ T5342] Call Trace: [ 74.773260][ T5342] [ 74.774720][ T5342] dump_stack_lvl+0x99/0x250 [ 74.776766][ T5342] ? __asan_memcpy+0x40/0x70 [ 74.778805][ T5342] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.781074][ T5342] ? __pfx__printk+0x10/0x10 [ 74.783228][ T5342] panic+0x2db/0x790 [ 74.785020][ T5342] ? __pfx_panic+0x10/0x10 [ 74.787100][ T5342] ? show_trace_log_lvl+0x4fb/0x550 [ 74.789598][ T5342] __warn+0x31b/0x4b0 [ 74.791539][ T5342] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.794329][ T5342] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.797055][ T5342] report_bug+0x2be/0x4f0 [ 74.798896][ T5342] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.801625][ T5342] ? __alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.804532][ T5342] ? __alloc_frozen_pages_noprof+0x2ca/0x370 [ 74.808108][ T5342] handle_bug+0x84/0x160 [ 74.811065][ T5342] exc_invalid_op+0x1a/0x50 [ 74.814138][ T5342] asm_exc_invalid_op+0x1a/0x20 [ 74.816829][ T5342] RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 [ 74.820203][ T5342] Code: 74 10 4c 89 e7 89 54 24 0c e8 34 14 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 6b 3b 75 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24 [ 74.831917][ T5342] RSP: 0018:ffffc9000d59f960 EFLAGS: 00010246 [ 74.834521][ T5342] RAX: ffffc9000d59f900 RBX: 0000000000000017 RCX: 0000000000000000 [ 74.837673][ T5342] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000d59f9c8 [ 74.840851][ T5342] RBP: ffffc9000d59fa50 R08: ffffc9000d59f9c7 R09: 0000000000000000 [ 74.844019][ T5342] R10: ffffc9000d59f9a0 R11: fffff52001ab3f39 R12: 0000000000000000 [ 74.847285][ T5342] R13: 1ffff92001ab3f30 R14: 0000000000040dc0 R15: dffffc0000000000 [ 74.851110][ T5342] ? __pfx___alloc_frozen_pages_noprof+0x10/0x10 [ 74.854103][ T5342] __alloc_pages_noprof+0xa/0x30 [ 74.856214][ T5342] ___kmalloc_large_node+0x85/0x210 [ 74.858340][ T5342] __kmalloc_large_node_noprof+0x18/0x90 [ 74.860646][ T5342] __kmalloc_noprof+0x36f/0x4f0 [ 74.862669][ T5342] ? comedi_unlocked_ioctl+0x9ee/0xf40 [ 74.865057][ T5342] comedi_unlocked_ioctl+0x9ee/0xf40 [ 74.867681][ T5342] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.871312][ T5342] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 74.874702][ T5342] ? tomoyo_path_number_perm+0x4e2/0x5a0 [ 74.877259][ T5342] ? tomoyo_path_number_perm+0x1bc/0x5a0 [ 74.879779][ T5342] ? __pfx_tomoyo_path_number_perm+0x10/0x10 [ 74.882471][ T5342] ? __lock_acquire+0xab9/0xd20 [ 74.884995][ T5342] ? __fget_files+0x2a/0x420 [ 74.887389][ T5342] ? __fget_files+0x2a/0x420 [ 74.889425][ T5342] ? __fget_files+0x3a0/0x420 [ 74.891611][ T5342] ? __fget_files+0x2a/0x420 [ 74.894093][ T5342] ? bpf_lsm_file_ioctl+0x9/0x20 [ 74.898811][ T5342] ? __pfx_comedi_unlocked_ioctl+0x10/0x10 [ 74.903332][ T5342] __se_sys_ioctl+0xf9/0x170 [ 74.905520][ T5342] do_syscall_64+0xfa/0x3b0 [ 74.907926][ T5342] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.910297][ T5342] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.913433][ T5342] ? clear_bhb_loop+0x60/0xb0 [ 74.918365][ T5342] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.921288][ T5342] RIP: 0033:0x7f8f88b8e9a9 [ 74.923723][ T5342] 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 a8 ff ff ff f7 d8 64 89 01 48 [ 74.935187][ T5342] RSP: 002b:00007f8f899c8038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 74.938866][ T5342] RAX: ffffffffffffffda RBX: 00007f8f88db6080 RCX: 00007f8f88b8e9a9 [ 74.942524][ T5342] RDX: 0000200000000000 RSI: 000000008010640b RDI: 0000000000000003 [ 74.946050][ T5342] RBP: 00007f8f88c10d69 R08: 0000000000000000 R09: 0000000000000000 [ 74.949306][ T5342] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.952768][ T5342] R13: 0000000000000001 R14: 00007f8f88db6080 R15: 00007ffee23604b8 [ 74.956346][ T5342] [ 74.958261][ T5342] Kernel Offset: disabled [ 74.960272][ T5342] Rebooting in 86400 seconds..