Warning: Permanently added '10.128.0.50' (ECDSA) to the list of known hosts. executing program [ 34.869464] ================================================================== [ 34.876998] BUG: KASAN: slab-out-of-bounds in squashfs_get_id+0x1ae/0x1d0 [ 34.883934] Read of size 8 at addr ffff8880a9101698 by task syz-executor533/8104 [ 34.891453] [ 34.893062] CPU: 1 PID: 8104 Comm: syz-executor533 Not tainted 4.19.166-syzkaller #0 [ 34.900913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.910238] Call Trace: [ 34.912804] dump_stack+0x1fc/0x2fe [ 34.916422] print_address_description.cold+0x54/0x219 [ 34.921676] kasan_report_error.cold+0x8a/0x1c7 [ 34.926326] ? squashfs_get_id+0x1ae/0x1d0 [ 34.930533] __asan_report_load8_noabort+0x88/0x90 [ 34.935449] ? squashfs_get_id+0x1ae/0x1d0 [ 34.939671] squashfs_get_id+0x1ae/0x1d0 [ 34.943718] ? squashfs_read_fragment_index_table+0xf0/0xf0 [ 34.949407] squashfs_read_inode+0x1ee/0x1b40 [ 34.953883] ? lock_downgrade+0x720/0x720 [ 34.958031] ? squashfs_read_id_index_table+0x120/0x120 [ 34.963387] ? map_id_range_down+0x1c4/0x340 [ 34.967785] ? new_inode+0xc7/0xf0 [ 34.971318] ? do_raw_spin_lock+0xcb/0x220 [ 34.975544] ? do_raw_spin_unlock+0x171/0x230 [ 34.980018] squashfs_fill_super+0x1655/0x1c00 [ 34.984581] mount_bdev+0x2fc/0x3b0 [ 34.988197] ? squashfs_alloc_inode+0x40/0x40 [ 34.992678] mount_fs+0xa3/0x30c [ 34.996035] vfs_kern_mount.part.0+0x68/0x470 [ 35.000508] do_mount+0x113c/0x2f10 [ 35.004114] ? do_raw_spin_unlock+0x171/0x230 [ 35.008601] ? check_preemption_disabled+0x41/0x280 [ 35.013592] ? copy_mount_string+0x40/0x40 [ 35.017802] ? copy_mount_options+0x59/0x380 [ 35.022216] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.027219] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.032035] ? copy_mount_options+0x26f/0x380 [ 35.036519] ksys_mount+0xcf/0x130 [ 35.040047] __x64_sys_mount+0xba/0x150 [ 35.044001] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.048559] do_syscall_64+0xf9/0x620 [ 35.052335] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.057496] RIP: 0033:0x446d2a [ 35.060664] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 35.079536] RSP: 002b:00007ffc6644bf98 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 35.087218] RAX: ffffffffffffffda RBX: 00007ffc6644bff0 RCX: 0000000000446d2a [ 35.094479] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc6644bfb0 [ 35.101736] RBP: 00007ffc6644bfb0 R08: 00007ffc6644bff0 R09: 00007ffc00000015 [ 35.108997] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 35.116247] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 35.123518] [ 35.125122] Allocated by task 8104: [ 35.128734] __kmalloc+0x15a/0x3c0 [ 35.132266] squashfs_read_table+0x42/0x1e3 [ 35.136563] squashfs_read_id_index_table+0xab/0x120 [ 35.141641] squashfs_fill_super+0xcfb/0x1c00 [ 35.146110] mount_bdev+0x2fc/0x3b0 [ 35.149716] mount_fs+0xa3/0x30c [ 35.153057] vfs_kern_mount.part.0+0x68/0x470 [ 35.157540] do_mount+0x113c/0x2f10 [ 35.161138] ksys_mount+0xcf/0x130 [ 35.164652] __x64_sys_mount+0xba/0x150 [ 35.168616] do_syscall_64+0xf9/0x620 [ 35.172389] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.177562] [ 35.179161] Freed by task 1: [ 35.182155] kfree+0xcc/0x210 [ 35.185234] usb_hcd_submit_urb+0xb93/0x23c0 [ 35.189632] usb_submit_urb+0xb2f/0x13b0 [ 35.193665] usb_start_wait_urb+0x108/0x4c0 [ 35.197973] usb_control_msg+0x31c/0x4a0 [ 35.202009] hub_hub_status+0xd5/0x380 [ 35.205868] hub_probe+0x1b0a/0x2e10 [ 35.209556] usb_probe_interface+0x317/0x9d0 [ 35.213938] really_probe+0x622/0xbd0 [ 35.217714] driver_probe_device+0x218/0x340 [ 35.222093] __device_attach_driver+0x29e/0x370 [ 35.226731] bus_for_each_drv+0x159/0x1e0 [ 35.230856] __device_attach+0x226/0x470 [ 35.234911] bus_probe_device+0x1ea/0x2a0 [ 35.239032] device_add+0xb37/0x16d0 [ 35.242719] usb_set_configuration+0x1016/0x18c0 [ 35.247450] generic_probe+0xcb/0x130 [ 35.251225] usb_probe_device+0xb8/0x150 [ 35.255262] really_probe+0x622/0xbd0 [ 35.259045] driver_probe_device+0x218/0x340 [ 35.263427] __device_attach_driver+0x29e/0x370 [ 35.268090] bus_for_each_drv+0x159/0x1e0 [ 35.272211] __device_attach+0x226/0x470 [ 35.276248] bus_probe_device+0x1ea/0x2a0 [ 35.280380] device_add+0xb37/0x16d0 [ 35.284069] usb_new_device+0xa06/0x1930 [ 35.288104] usb_add_hcd+0xd0b/0x1ce0 [ 35.291893] vhci_hcd_probe+0x1c0/0x3a0 [ 35.295845] platform_drv_probe+0xd4/0x1b0 [ 35.300054] really_probe+0x622/0xbd0 [ 35.303833] driver_probe_device+0x218/0x340 [ 35.308216] __device_attach_driver+0x29e/0x370 [ 35.312862] bus_for_each_drv+0x159/0x1e0 [ 35.316986] __device_attach+0x226/0x470 [ 35.321036] bus_probe_device+0x1ea/0x2a0 [ 35.325174] device_add+0xb37/0x16d0 [ 35.328879] platform_device_add+0x364/0x830 [ 35.333265] vhci_hcd_init+0x341/0x485 [ 35.337129] do_one_initcall+0xf1/0x734 [ 35.341083] kernel_init_freeable+0x9a6/0xa98 [ 35.345549] kernel_init+0xd/0x1c0 [ 35.349075] ret_from_fork+0x24/0x30 [ 35.352756] [ 35.354361] The buggy address belongs to the object at ffff8880a9101680 [ 35.354361] which belongs to the cache kmalloc-32 of size 32 [ 35.366818] The buggy address is located 24 bytes inside of [ 35.366818] 32-byte region [ffff8880a9101680, ffff8880a91016a0) [ 35.378501] The buggy address belongs to the page: [ 35.383416] page:ffffea0002a44040 count:1 mapcount:0 mapping:ffff88813bff01c0 index:0xffff8880a9101fc1 [ 35.392846] flags: 0xfff00000000100(slab) [ 35.396972] raw: 00fff00000000100 ffffea0002a40f08 ffff88813bff1248 ffff88813bff01c0 [ 35.404829] raw: ffff8880a9101fc1 ffff8880a9101000 000000010000003f 0000000000000000 [ 35.412695] page dumped because: kasan: bad access detected [ 35.418374] [ 35.419974] Memory state around the buggy address: [ 35.424891] ffff8880a9101580: 00 04 fc fc fc fc fc fc 00 04 fc fc fc fc fc fc [ 35.432244] ffff8880a9101600: 00 04 fc fc fc fc fc fc 00 04 fc fc fc fc fc fc [ 35.439574] >ffff8880a9101680: 00 fc fc fc fc fc fc fc fb fb fb fb fc fc fc fc [ 35.446903] ^ [ 35.451022] ffff8880a9101700: fb fb fb fb fc fc fc fc 00 fc fc fc fc fc fc fc [ 35.458352] ffff8880a9101780: fb fb fb fb fc fc fc fc 00 fc fc fc fc fc fc fc [ 35.465681] ================================================================== [ 35.473011] Disabling lock debugging due to kernel taint [ 35.481152] Kernel panic - not syncing: panic_on_warn set ... [ 35.481152] [ 35.488534] CPU: 0 PID: 8104 Comm: syz-executor533 Tainted: G B 4.19.166-syzkaller #0 [ 35.497791] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.507131] Call Trace: [ 35.509712] dump_stack+0x1fc/0x2fe [ 35.513329] panic+0x26a/0x50e [ 35.516496] ? __warn_printk+0xf3/0xf3 [ 35.520360] ? preempt_schedule_common+0x45/0xc0 [ 35.525088] ? ___preempt_schedule+0x16/0x18 [ 35.529472] ? trace_hardirqs_on+0x55/0x210 [ 35.533788] kasan_end_report+0x43/0x49 [ 35.537744] kasan_report_error.cold+0xa7/0x1c7 [ 35.542386] ? squashfs_get_id+0x1ae/0x1d0 [ 35.546593] __asan_report_load8_noabort+0x88/0x90 [ 35.551517] ? squashfs_get_id+0x1ae/0x1d0 [ 35.555739] squashfs_get_id+0x1ae/0x1d0 [ 35.559789] ? squashfs_read_fragment_index_table+0xf0/0xf0 [ 35.565488] squashfs_read_inode+0x1ee/0x1b40 [ 35.570000] ? lock_downgrade+0x720/0x720 [ 35.574122] ? squashfs_read_id_index_table+0x120/0x120 [ 35.579461] ? map_id_range_down+0x1c4/0x340 [ 35.583878] ? new_inode+0xc7/0xf0 [ 35.587427] ? do_raw_spin_lock+0xcb/0x220 [ 35.591634] ? do_raw_spin_unlock+0x171/0x230 [ 35.596103] squashfs_fill_super+0x1655/0x1c00 [ 35.600660] mount_bdev+0x2fc/0x3b0 [ 35.604261] ? squashfs_alloc_inode+0x40/0x40 [ 35.608735] mount_fs+0xa3/0x30c [ 35.612077] vfs_kern_mount.part.0+0x68/0x470 [ 35.616562] do_mount+0x113c/0x2f10 [ 35.620165] ? do_raw_spin_unlock+0x171/0x230 [ 35.624634] ? check_preemption_disabled+0x41/0x280 [ 35.629626] ? copy_mount_string+0x40/0x40 [ 35.633852] ? copy_mount_options+0x59/0x380 [ 35.638266] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.643269] ? kmem_cache_alloc_trace+0x323/0x380 [ 35.648084] ? copy_mount_options+0x26f/0x380 [ 35.652553] ksys_mount+0xcf/0x130 [ 35.656067] __x64_sys_mount+0xba/0x150 [ 35.660017] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.664573] do_syscall_64+0xf9/0x620 [ 35.668351] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.673516] RIP: 0033:0x446d2a [ 35.676688] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 fd ad fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 da ad fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 35.695579] RSP: 002b:00007ffc6644bf98 EFLAGS: 00000293 ORIG_RAX: 00000000000000a5 [ 35.703272] RAX: ffffffffffffffda RBX: 00007ffc6644bff0 RCX: 0000000000446d2a [ 35.710525] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc6644bfb0 [ 35.717768] RBP: 00007ffc6644bfb0 R08: 00007ffc6644bff0 R09: 00007ffc00000015 [ 35.725011] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000001 [ 35.732266] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 35.740113] Kernel Offset: disabled [ 35.743725] Rebooting in 86400 seconds..