program: syz_mount_image$udf(&(0x7f0000000180), &(0x7f0000000100)='./bus\x00', 0x1014494, &(0x7f00000002c0)={[{@iocharset={'iocharset', 0x3d, 'iso8859-4'}}, {@partition={'partition', 0x3d, 0x6}}, {@gid_forget}, {@session={'session', 0x3d, 0xfe8}}, {@noadinicb}, {@anchor}, {@uid_forget}]}, 0xfe, 0xc24, &(0x7f0000001480)="$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") r0 = open(&(0x7f0000000240)='./file1\x00', 0x145142, 0x0) ftruncate(r0, 0x2007ffc) sendfile(r0, r0, 0x0, 0x800000009) r1 = open(&(0x7f0000000000)='./bus\x00', 0x60142, 0x0) r2 = open(&(0x7f0000000080)='./bus\x00', 0x107382, 0x1d0) ftruncate(r2, 0x2007ffb) r3 = bpf$MAP_CREATE(0x0, &(0x7f0000000580)=ANY=[@ANYBLOB="0500000004000000048000000400050000000000", @ANYRES32, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB='\x00'/28], 0x48) r4 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x2, 0x0) ioctl$TIOCSETD(r4, 0x5423, &(0x7f0000000040)=0xd) write$binfmt_aout(r4, &(0x7f0000000000)=ANY=[], 0xff2e) ioctl$TIOCVHANGUP(r4, 0x5437, 0x0) bpf$PROG_LOAD(0x5, &(0x7f0000002c40)={0x16, 0x17, &(0x7f00000007c0)=@ringbuf={{0x18, 0x0, 0x0, 0x0, 0x1ffffc, 0x0, 0x0, 0x0, 0x20}, {{0x18, 0x1, 0x1, 0x0, r3}, {}, {}, {0x85, 0x0, 0x0, 0x5}}, {{0x6, 0x0, 0x6, 0x9, 0x0, 0x6, 0xe7030000}, {0x4, 0x0, 0x0, 0x6}}, [@printk={@p, {0x3, 0x3, 0x3, 0xa, 0x9}, {0x4, 0x1, 0xa, 0x1, 0x9}, {0x7, 0x0, 0x3}, {}, {}, {0x14}}], {{0x5, 0x1, 0x5, 0x3}, {0x5, 0x0, 0xb, 0x3, 0x0, 0x2}, {0x85, 0x0, 0x0, 0xc4}}}, &(0x7f0000000140)='GPL\x00', 0x0, 0x0, 0x0, 0x41100, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x94) sendfile(r1, r2, 0x0, 0x1000000201005) syz_usb_connect$hid(0x0, 0x36, &(0x7f0000000380)=ANY=[@ANYBLOB="1201500200000040"], 0x0) open(&(0x7f0000000180)='./bus\x00', 0x14937e, 0x111) mount(&(0x7f0000000280)=@loop={'/dev/loop', 0x0}, &(0x7f0000000140)='./bus\x00', 0x0, 0x5000, 0x0) r5 = open(&(0x7f0000000000)='./bus\x00', 0x0, 0x0) ioctl$LOOP_SET_STATUS64(r5, 0x4c04, &(0x7f0000000540)={0x0, 0x0, 0x0, 0x0, 0x8005, 0x0, 0x0, 0x15, 0x1c, "ef359f413bb93852f7d6a4ae6dddfbd1ce5d29c2ee5e5ca9000ff8ee09e737ff0edf110ff4117639c2eb4b78c660e677df701905b9aafab4afaaf755a3f6a004", "036c47c6780820d1cbf7966d61fdcf335263bd9bffbcc2542ded71038259ca171ce1a311ef54ec32d71e14ef3dc177e9b48b00", "f28359738e229a4c66810000000000d300e6d602000000000000000000000001", [0x204]}) r6 = syz_open_dev$evdev(&(0x7f0000000000), 0x19c5498e, 0x103902) socketpair$tipc(0x1e, 0x1, 0x0, &(0x7f0000002ac0)={0xffffffffffffffff, 0xffffffffffffffff}) write(r7, &(0x7f0000003f00)="73ba0000000000062828ff9f3bdf5cb349373efc887214156388cfcb4f", 0x1d) recvmmsg(r8, &(0x7f0000001d40)=[{{0x0, 0x0, &(0x7f0000000180)=[{&(0x7f0000002c40)=""/28, 0x1c}], 0x1}, 0xa1b6698}], 0x1, 0x13140, 0x0) close_range(r6, 0xffffffffffffffff, 0x0) truncate(&(0x7f00000013c0)='./file1\x00', 0x0) [ 87.586124][ T4667] Bluetooth: hci0: command tx timeout [ 87.656846][ T5323] loop0: detected capacity change from 0 to 2048 [ 87.685036][ T5323] UDF-fs: error (device loop0): udf_read_tagged: read failed, block=2362, location=2362 [ 87.703996][ T5323] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 99: 0x27 != 0x4d [ 87.708874][ T5323] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 160: 0xd2 != 0xd4 [ 87.723330][ T5323] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 87.741106][ T25] audit: type=1800 audit(1762306232.267:2): pid=5323 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed(directio) comm="syz.0.0" name="file1" dev="loop0" ino=1346 res=0 errno=0 [ 88.161464][ T5317] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 88.361590][ T5323] loop0: detected capacity change from 2048 to 64 [ 88.379784][ T5323] ================================================================== [ 88.382918][ T5323] BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x69d/0x7b0 [ 88.386264][ T5323] Write of size 4 at addr ffff8880346359d8 by task syz.0.0/5323 [ 88.389460][ T5323] [ 88.390478][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 88.390494][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 88.390502][ T5323] Call Trace: [ 88.390509][ T5323] [ 88.390515][ T5323] dump_stack_lvl+0x189/0x250 [ 88.390535][ T5323] ? __virt_addr_valid+0x1c8/0x5c0 [ 88.390559][ T5323] ? rcu_is_watching+0x15/0xb0 [ 88.390574][ T5323] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.390588][ T5323] ? rcu_is_watching+0x15/0xb0 [ 88.390601][ T5323] ? lock_release+0x4b/0x3e0 [ 88.390613][ T5323] ? _raw_spin_lock_irqsave+0xb3/0xf0 [ 88.390664][ T5323] ? __virt_addr_valid+0x1c8/0x5c0 [ 88.390680][ T5323] ? __virt_addr_valid+0x4a5/0x5c0 [ 88.390696][ T5323] print_report+0xca/0x240 [ 88.390711][ T5323] ? udf_write_aext+0x69d/0x7b0 [ 88.390722][ T5323] kasan_report+0x118/0x150 [ 88.390738][ T5323] ? udf_write_aext+0x69d/0x7b0 [ 88.390752][ T5323] udf_write_aext+0x69d/0x7b0 [ 88.390765][ T5323] __udf_add_aext+0x2b9/0x6d0 [ 88.390777][ T5323] udf_free_blocks+0x1466/0x17f0 [ 88.390798][ T5323] ? __pfx_udf_free_blocks+0x10/0x10 [ 88.390814][ T5323] ? rcu_is_watching+0x15/0xb0 [ 88.390826][ T5323] ? __mark_inode_dirty+0x3d2/0xe10 [ 88.390839][ T5323] ? rcu_needs_cpu+0x70/0xb0 [ 88.390850][ T5323] ? __mark_inode_dirty+0x3d2/0xe10 [ 88.390861][ T5323] extent_trunc+0x35c/0x450 [ 88.390877][ T5323] ? __pfx_extent_trunc+0x10/0x10 [ 88.390892][ T5323] udf_truncate_extents+0x5b0/0xec0 [ 88.390910][ T5323] ? __pfx_udf_truncate_extents+0x10/0x10 [ 88.390927][ T5323] ? do_raw_spin_unlock+0x4d/0x240 [ 88.390943][ T5323] udf_setsize+0x972/0x1000 [ 88.390958][ T5323] ? udf_setattr+0x385/0x5a0 [ 88.390975][ T5323] ? __pfx_udf_setsize+0x10/0x10 [ 88.390992][ T5323] ? down_write+0x162/0x1f0 [ 88.391006][ T5323] ? __pfx_down_write+0x10/0x10 [ 88.391021][ T5323] ? __pfx_current_time+0x10/0x10 [ 88.391032][ T5323] udf_setattr+0x3a1/0x5a0 [ 88.391047][ T5323] ? __pfx_udf_setattr+0x10/0x10 [ 88.391062][ T5323] notify_change+0xc1a/0xf40 [ 88.391077][ T5323] do_truncate+0x1a4/0x220 [ 88.391092][ T5323] ? __pfx_do_truncate+0x10/0x10 [ 88.391104][ T5323] ? apparmor_path_truncate+0x238/0x2d0 [ 88.391120][ T5323] vfs_truncate+0x493/0x520 [ 88.391135][ T5323] ? __pfx_vfs_truncate+0x10/0x10 [ 88.391152][ T5323] do_sys_truncate+0xdb/0x190 [ 88.391166][ T5323] ? __pfx_do_sys_truncate+0x10/0x10 [ 88.391183][ T5323] __x64_sys_truncate+0x5b/0x70 [ 88.391197][ T5323] do_syscall_64+0xfa/0xfa0 [ 88.391211][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.391222][ T5323] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 88.391234][ T5323] ? clear_bhb_loop+0x60/0xb0 [ 88.391245][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.391256][ T5323] RIP: 0033:0x7ff1c458f6c9 [ 88.391268][ T5323] 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 [ 88.391278][ T5323] RSP: 002b:00007ff1c538b038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 88.391291][ T5323] RAX: ffffffffffffffda RBX: 00007ff1c47e5fa0 RCX: 00007ff1c458f6c9 [ 88.391300][ T5323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000013c0 [ 88.391308][ T5323] RBP: 00007ff1c4611f91 R08: 0000000000000000 R09: 0000000000000000 [ 88.391315][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.391322][ T5323] R13: 00007ff1c47e6038 R14: 00007ff1c47e5fa0 R15: 00007ffc16f8b898 [ 88.391333][ T5323] [ 88.391337][ T5323] [ 88.529999][ T5323] Allocated by task 5323: [ 88.531720][ T5323] kasan_save_track+0x3e/0x80 [ 88.533774][ T5323] __kasan_kmalloc+0x93/0xb0 [ 88.535840][ T5323] __kmalloc_noprof+0x411/0x7f0 [ 88.538012][ T5323] __udf_iget+0xc66/0x3ae0 [ 88.540103][ T5323] udf_fill_partdesc_info+0x773/0x1320 [ 88.542502][ T5323] udf_process_sequence+0x111c/0x47e0 [ 88.544714][ T5323] udf_check_anchor_block+0x28e/0x550 [ 88.546865][ T5323] udf_load_vrs+0x96d/0xf20 [ 88.548552][ T5323] udf_fill_super+0x5ad/0x17a0 [ 88.550453][ T5323] get_tree_bdev_flags+0x40e/0x4d0 [ 88.552535][ T5323] vfs_get_tree+0x92/0x2b0 [ 88.554431][ T5323] do_new_mount+0x302/0xa10 [ 88.556414][ T5323] __se_sys_mount+0x313/0x410 [ 88.558555][ T5323] do_syscall_64+0xfa/0xfa0 [ 88.560585][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.563174][ T5323] [ 88.564103][ T5323] The buggy address belongs to the object at ffff888034635800 [ 88.564103][ T5323] which belongs to the cache kmalloc-512 of size 512 [ 88.569981][ T5323] The buggy address is located 0 bytes to the right of [ 88.569981][ T5323] allocated 472-byte region [ffff888034635800, ffff8880346359d8) [ 88.575403][ T5323] [ 88.576412][ T5323] The buggy address belongs to the physical page: [ 88.578972][ T5323] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x34634 [ 88.582497][ T5323] head: order:1 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 88.586093][ T5323] flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff) [ 88.589154][ T5323] page_type: f5(slab) [ 88.590722][ T5323] raw: 04fff00000000040 ffff88801a041c80 ffffea0000fd5300 dead000000000004 [ 88.594077][ T5323] raw: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 [ 88.597642][ T5323] head: 04fff00000000040 ffff88801a041c80 ffffea0000fd5300 dead000000000004 [ 88.601219][ T5323] head: 0000000000000000 0000000000080008 00000000f5000000 0000000000000000 [ 88.605041][ T5323] head: 04fff00000000001 ffffea0000d18d01 00000000ffffffff 00000000ffffffff [ 88.608921][ T5323] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000002 [ 88.612438][ T5323] page dumped because: kasan: bad access detected [ 88.615234][ T5323] page_owner tracks the page as allocated [ 88.617731][ T5323] page last allocated via order 1, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 18288972330, free_ts 16940977496 [ 88.626716][ T5323] post_alloc_hook+0x240/0x2a0 [ 88.628888][ T5323] get_page_from_freelist+0x2365/0x2440 [ 88.631336][ T5323] __alloc_frozen_pages_noprof+0x181/0x370 [ 88.633699][ T5323] alloc_pages_mpol+0x232/0x4a0 [ 88.635798][ T5323] allocate_slab+0x96/0x350 [ 88.637571][ T5323] ___slab_alloc+0xe94/0x18a0 [ 88.639555][ T5323] __slab_alloc+0x65/0x100 [ 88.641421][ T5323] __kmalloc_cache_noprof+0x411/0x6f0 [ 88.643722][ T5323] device_add+0xbe/0xb50 [ 88.645661][ T5323] usb_hub_create_port_device+0x3c2/0xb90 [ 88.648085][ T5323] hub_probe+0x26bf/0x37f0 [ 88.649990][ T5323] usb_probe_interface+0x668/0xc30 [ 88.652111][ T5323] really_probe+0x26d/0x9e0 [ 88.653930][ T5323] __driver_probe_device+0x18c/0x2f0 [ 88.656063][ T5323] driver_probe_device+0x4f/0x430 [ 88.658060][ T5323] __device_attach_driver+0x2ce/0x530 [ 88.660201][ T5323] page last free pid 1 tgid 1 stack trace: [ 88.662814][ T5323] __free_frozen_pages+0xbc4/0xd30 [ 88.665060][ T5323] __put_partials+0x146/0x170 [ 88.667181][ T5323] put_cpu_partial+0x1f2/0x2e0 [ 88.669179][ T5323] __slab_free+0x2b9/0x390 [ 88.671140][ T5323] qlist_free_all+0x97/0x140 [ 88.673137][ T5323] kasan_quarantine_reduce+0x148/0x160 [ 88.675661][ T5323] __kasan_slab_alloc+0x22/0x80 [ 88.677817][ T5323] kmem_cache_alloc_noprof+0x367/0x6e0 [ 88.680184][ T5323] __kernfs_new_node+0xd7/0x7e0 [ 88.682257][ T5323] kernfs_new_node+0x102/0x210 [ 88.684426][ T5323] __kernfs_create_file+0x4b/0x2e0 [ 88.686706][ T5323] sysfs_add_file_mode_ns+0x238/0x300 [ 88.688936][ T5323] sysfs_create_file_ns+0x128/0x1a0 [ 88.691174][ T5323] usb_register_driver+0x30f/0x390 [ 88.693354][ T5323] do_one_initcall+0x236/0x820 [ 88.695429][ T5323] do_initcall_level+0x104/0x190 [ 88.697600][ T5323] [ 88.698680][ T5323] Memory state around the buggy address: [ 88.701235][ T5323] ffff888034635880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 88.704712][ T5323] ffff888034635900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 88.708214][ T5323] >ffff888034635980: 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc fc [ 88.711709][ T5323] ^ [ 88.714508][ T5323] ffff888034635a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 88.717418][ T5323] ffff888034635a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 88.720541][ T5323] ================================================================== [ 88.800437][ T5323] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 88.803567][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 88.807282][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 88.811547][ T5323] Call Trace: [ 88.813116][ T5323] [ 88.814509][ T5323] dump_stack_lvl+0x99/0x250 [ 88.816418][ T5323] ? __asan_memcpy+0x40/0x70 [ 88.818359][ T5323] ? __pfx_dump_stack_lvl+0x10/0x10 [ 88.820628][ T5323] ? __pfx__printk+0x10/0x10 [ 88.822652][ T5323] vpanic+0x237/0x6d0 [ 88.824509][ T5323] ? __pfx_vpanic+0x10/0x10 [ 88.826594][ T5323] ? preempt_schedule+0xae/0xc0 [ 88.828767][ T5323] ? __pfx_preempt_schedule+0x10/0x10 [ 88.831185][ T5323] panic+0xb9/0xc0 [ 88.832863][ T5323] ? __pfx_panic+0x10/0x10 [ 88.834782][ T5323] ? _raw_spin_unlock_irqrestore+0xfd/0x110 [ 88.837262][ T5323] ? is_module_address+0x17/0xf0 [ 88.839392][ T5323] ? udf_write_aext+0x69d/0x7b0 [ 88.841456][ T5323] check_panic_on_warn+0x89/0xb0 [ 88.843602][ T5323] ? udf_write_aext+0x69d/0x7b0 [ 88.845756][ T5323] end_report+0x78/0x160 [ 88.847671][ T5323] kasan_report+0x129/0x150 [ 88.849709][ T5323] ? udf_write_aext+0x69d/0x7b0 [ 88.851878][ T5323] udf_write_aext+0x69d/0x7b0 [ 88.854005][ T5323] __udf_add_aext+0x2b9/0x6d0 [ 88.856130][ T5323] udf_free_blocks+0x1466/0x17f0 [ 88.858369][ T5323] ? __pfx_udf_free_blocks+0x10/0x10 [ 88.860513][ T5323] ? rcu_is_watching+0x15/0xb0 [ 88.862500][ T5323] ? __mark_inode_dirty+0x3d2/0xe10 [ 88.864633][ T5323] ? rcu_needs_cpu+0x70/0xb0 [ 88.866606][ T5323] ? __mark_inode_dirty+0x3d2/0xe10 [ 88.868695][ T5323] extent_trunc+0x35c/0x450 [ 88.870541][ T5323] ? __pfx_extent_trunc+0x10/0x10 [ 88.872542][ T5323] udf_truncate_extents+0x5b0/0xec0 [ 88.874662][ T5323] ? __pfx_udf_truncate_extents+0x10/0x10 [ 88.877195][ T5323] ? do_raw_spin_unlock+0x4d/0x240 [ 88.879588][ T5323] udf_setsize+0x972/0x1000 [ 88.881701][ T5323] ? udf_setattr+0x385/0x5a0 [ 88.883807][ T5323] ? __pfx_udf_setsize+0x10/0x10 [ 88.886060][ T5323] ? down_write+0x162/0x1f0 [ 88.888171][ T5323] ? __pfx_down_write+0x10/0x10 [ 88.890432][ T5323] ? __pfx_current_time+0x10/0x10 [ 88.892708][ T5323] udf_setattr+0x3a1/0x5a0 [ 88.894788][ T5323] ? __pfx_udf_setattr+0x10/0x10 [ 88.896945][ T5323] notify_change+0xc1a/0xf40 [ 88.898906][ T5323] do_truncate+0x1a4/0x220 [ 88.900767][ T5323] ? __pfx_do_truncate+0x10/0x10 [ 88.903022][ T5323] ? apparmor_path_truncate+0x238/0x2d0 [ 88.905524][ T5323] vfs_truncate+0x493/0x520 [ 88.907503][ T5323] ? __pfx_vfs_truncate+0x10/0x10 [ 88.909765][ T5323] do_sys_truncate+0xdb/0x190 [ 88.911824][ T5323] ? __pfx_do_sys_truncate+0x10/0x10 [ 88.914157][ T5323] __x64_sys_truncate+0x5b/0x70 [ 88.916378][ T5323] do_syscall_64+0xfa/0xfa0 [ 88.918509][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.921223][ T5323] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 88.923779][ T5323] ? clear_bhb_loop+0x60/0xb0 [ 88.925875][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 88.928400][ T5323] RIP: 0033:0x7ff1c458f6c9 [ 88.930333][ T5323] 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 [ 88.938650][ T5323] RSP: 002b:00007ff1c538b038 EFLAGS: 00000246 ORIG_RAX: 000000000000004c [ 88.942348][ T5323] RAX: ffffffffffffffda RBX: 00007ff1c47e5fa0 RCX: 00007ff1c458f6c9 [ 88.945917][ T5323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000013c0 [ 88.949394][ T5323] RBP: 00007ff1c4611f91 R08: 0000000000000000 R09: 0000000000000000 [ 88.952989][ T5323] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 88.956477][ T5323] R13: 00007ff1c47e6038 R14: 00007ff1c47e5fa0 R15: 00007ffc16f8b898 [ 88.959913][ T5323] [ 88.961616][ T5323] Kernel Offset: disabled [ 88.963428][ T5323] Rebooting in 86400 seconds..