DUID 00:04:1b:4d:40:85:b1:6b:61:74:2c:72:11:ce:21:17:3d:97
forked to background, child pid 3173
[ 22.030990][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0
[ 22.041563][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.1.77' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [ 43.766600][ T3498] loop0: detected capacity change from 0 to 128
[ 43.775072][ T3498] VFS: Found a Xenix FS (block size = 512) on device loop0
[ 43.790401][ T3498] sysv_free_block: trying to free block not in datazone
[ 43.800414][ T3498] ==================================================================
[ 43.810248][ T3498] BUG: KASAN: null-ptr-deref in get_block+0x565/0x1690
[ 43.820558][ T3498] Write of size 8 at addr 0000000000000000 by task syz-executor311/3498
[ 43.829462][ T3498]
[ 43.831769][ T3498] CPU: 0 PID: 3498 Comm: syz-executor311 Not tainted 5.15.117-syzkaller #0
[ 43.840326][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[ 43.850359][ T3498] Call Trace:
[ 43.853633][ T3498]
[ 43.856566][ T3498] dump_stack_lvl+0x1e3/0x2cb
[ 43.861226][ T3498] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 43.866924][ T3498] ? panic+0x84d/0x84d
[ 43.870965][ T3498] ? _raw_spin_lock_irqsave+0xdd/0x120
[ 43.876408][ T3498] ? get_block+0x565/0x1690
[ 43.880890][ T3498] kasan_report+0x161/0x1c0
[ 43.885376][ T3498] ? get_block+0x565/0x1690
[ 43.889868][ T3498] kasan_check_range+0x27e/0x290
[ 43.894782][ T3498] get_block+0x565/0x1690
[ 43.899097][ T3498] ? sysv_truncate+0x1050/0x1050
[ 43.904021][ T3498] ? alloc_buffer_head+0xd3/0xf0
[ 43.908940][ T3498] ? create_page_buffers+0x24b/0x330
[ 43.914225][ T3498] __block_write_begin_int+0x60b/0x1650
[ 43.919928][ T3498] ? sysv_truncate+0x1050/0x1050
[ 43.924838][ T3498] ? page_zero_new_buffers+0x510/0x510
[ 43.930269][ T3498] ? make_kgid+0x6f0/0x6f0
[ 43.934672][ T3498] ? fault_in_readable+0x206/0x2e0
[ 43.939774][ T3498] ? fault_in_safe_writeable+0x250/0x250
[ 43.945475][ T3498] ? wait_for_stable_page+0xe2/0x110
[ 43.950744][ T3498] ? sysv_truncate+0x1050/0x1050
[ 43.955658][ T3498] block_write_begin+0x4f/0xc0
[ 43.960403][ T3498] sysv_write_begin+0x36/0x70
[ 43.965059][ T3498] generic_perform_write+0x2bf/0x5b0
[ 43.970327][ T3498] ? grab_cache_page_write_begin+0x90/0x90
[ 43.976118][ T3498] ? file_remove_privs+0x610/0x610
[ 43.981212][ T3498] ? down_write+0x10e/0x170
[ 43.985701][ T3498] __generic_file_write_iter+0x243/0x4f0
[ 43.991311][ T3498] generic_file_write_iter+0xa7/0x1b0
[ 43.996663][ T3498] do_iter_readv_writev+0x594/0x7a0
[ 44.001839][ T3498] ? generic_file_rw_checks+0x260/0x260
[ 44.007360][ T3498] ? common_file_perm+0x17d/0x1d0
[ 44.012447][ T3498] ? fsnotify_perm+0x67/0x5a0
[ 44.017107][ T3498] ? bpf_lsm_file_permission+0x5/0x10
[ 44.022455][ T3498] do_iter_write+0x1ea/0x760
[ 44.027025][ T3498] do_pwritev+0x219/0x360
[ 44.031541][ T3498] ? do_preadv+0x350/0x350
[ 44.035953][ T3498] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 44.041920][ T3498] ? vtime_user_exit+0x2d1/0x400
[ 44.046841][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230
[ 44.052804][ T3498] ? lockdep_hardirqs_on+0x94/0x130
[ 44.058217][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230
[ 44.064273][ T3498] do_syscall_64+0x3d/0xb0
[ 44.068673][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 44.074566][ T3498] RIP: 0033:0x7fbb39e5db29
[ 44.078959][ T3498] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
[ 44.098636][ T3498] RSP: 002b:00007ffda20a7508 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
[ 44.107027][ T3498] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fbb39e5db29
[ 44.114981][ T3498] RDX: 0000000000000005 RSI: 0000000020000480 RDI: 0000000000000004
[ 44.122942][ T3498] RBP: 00007fbb39e1d160 R08: 0000000000000000 R09: 0000000000000000
[ 44.131072][ T3498] R10: 0000000000007fff R11: 0000000000000246 R12: 00007fbb39e1d1f0
[ 44.139036][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 44.147000][ T3498]
[ 44.149995][ T3498] ==================================================================
[ 44.158024][ T3498] Disabling lock debugging due to kernel taint
[ 44.166667][ T3498] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 44.173851][ T3498] CPU: 0 PID: 3498 Comm: syz-executor311 Tainted: G B 5.15.117-syzkaller #0
[ 44.183803][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
[ 44.193839][ T3498] Call Trace:
[ 44.197096][ T3498]
[ 44.200005][ T3498] dump_stack_lvl+0x1e3/0x2cb
[ 44.204666][ T3498] ? io_uring_drop_tctx_refs+0x19d/0x19d
[ 44.211411][ T3498] ? panic+0x84d/0x84d
[ 44.215516][ T3498] ? preempt_schedule_common+0xa6/0xd0
[ 44.220950][ T3498] ? preempt_schedule+0xd9/0xe0
[ 44.225785][ T3498] panic+0x318/0x84d
[ 44.229653][ T3498] ? check_panic_on_warn+0x1d/0xa0
[ 44.234738][ T3498] ? fb_is_primary_device+0xcc/0xcc
[ 44.239908][ T3498] ? _raw_spin_unlock_irqrestore+0x128/0x130
[ 44.245865][ T3498] ? _raw_spin_unlock+0x40/0x40
[ 44.251120][ T3498] ? _raw_spin_lock_irqsave+0xdd/0x120
[ 44.256555][ T3498] check_panic_on_warn+0x7e/0xa0
[ 44.261467][ T3498] ? get_block+0x565/0x1690
[ 44.265955][ T3498] end_report+0x6d/0xf0
[ 44.270101][ T3498] kasan_report+0x18e/0x1c0
[ 44.274590][ T3498] ? get_block+0x565/0x1690
[ 44.279077][ T3498] kasan_check_range+0x27e/0x290
[ 44.284001][ T3498] get_block+0x565/0x1690
[ 44.288318][ T3498] ? sysv_truncate+0x1050/0x1050
[ 44.293988][ T3498] ? alloc_buffer_head+0xd3/0xf0
[ 44.298919][ T3498] ? create_page_buffers+0x24b/0x330
[ 44.304178][ T3498] __block_write_begin_int+0x60b/0x1650
[ 44.309716][ T3498] ? sysv_truncate+0x1050/0x1050
[ 44.314635][ T3498] ? page_zero_new_buffers+0x510/0x510
[ 44.320099][ T3498] ? make_kgid+0x6f0/0x6f0
[ 44.324490][ T3498] ? fault_in_readable+0x206/0x2e0
[ 44.329577][ T3498] ? fault_in_safe_writeable+0x250/0x250
[ 44.335186][ T3498] ? wait_for_stable_page+0xe2/0x110
[ 44.340447][ T3498] ? sysv_truncate+0x1050/0x1050
[ 44.345360][ T3498] block_write_begin+0x4f/0xc0
[ 44.350100][ T3498] sysv_write_begin+0x36/0x70
[ 44.354762][ T3498] generic_perform_write+0x2bf/0x5b0
[ 44.360028][ T3498] ? grab_cache_page_write_begin+0x90/0x90
[ 44.365811][ T3498] ? file_remove_privs+0x610/0x610
[ 44.370899][ T3498] ? down_write+0x10e/0x170
[ 44.375401][ T3498] __generic_file_write_iter+0x243/0x4f0
[ 44.381093][ T3498] generic_file_write_iter+0xa7/0x1b0
[ 44.386439][ T3498] do_iter_readv_writev+0x594/0x7a0
[ 44.391614][ T3498] ? generic_file_rw_checks+0x260/0x260
[ 44.397135][ T3498] ? common_file_perm+0x17d/0x1d0
[ 44.402132][ T3498] ? fsnotify_perm+0x67/0x5a0
[ 44.406783][ T3498] ? bpf_lsm_file_permission+0x5/0x10
[ 44.412140][ T3498] do_iter_write+0x1ea/0x760
[ 44.416712][ T3498] do_pwritev+0x219/0x360
[ 44.421015][ T3498] ? do_preadv+0x350/0x350
[ 44.425407][ T3498] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 44.431361][ T3498] ? vtime_user_exit+0x2d1/0x400
[ 44.436272][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230
[ 44.442228][ T3498] ? lockdep_hardirqs_on+0x94/0x130
[ 44.447398][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230
[ 44.453353][ T3498] do_syscall_64+0x3d/0xb0
[ 44.457745][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb
[ 44.463610][ T3498] RIP: 0033:0x7fbb39e5db29
[ 44.468001][ T3498] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 00 00 90 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 c0 ff ff ff f7 d8 64 89 01 48
[ 44.487579][ T3498] RSP: 002b:00007ffda20a7508 EFLAGS: 00000246 ORIG_RAX: 0000000000000128
[ 44.495967][ T3498] RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007fbb39e5db29
[ 44.503913][ T3498] RDX: 0000000000000005 RSI: 0000000020000480 RDI: 0000000000000004
[ 44.511858][ T3498] RBP: 00007fbb39e1d160 R08: 0000000000000000 R09: 0000000000000000
[ 44.520594][ T3498] R10: 0000000000007fff R11: 0000000000000246 R12: 00007fbb39e1d1f0
[ 44.528539][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 44.536489][ T3498]
[ 44.539907][ T3498] Kernel Offset: disabled
[ 44.544217][ T3498] Rebooting in 86400 seconds..