DUID 00:04:fd:d1:b1:d5:68:a0:3a:5f:50:0a:64:49:ea:42:3f:75 forked to background, child pid 3173 [ 21.671707][ T3174] 8021q: adding VLAN 0 to HW filter on device bond0 [ 21.681817][ T3174] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.147' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.101315][ T3498] loop0: detected capacity change from 0 to 32768 [ 48.120730][ T26] audit: type=1804 audit(1684040735.568:2): pid=3498 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=open_writers comm="syz-executor140" name="/root/bus/bus" dev="loop0" ino=7 res=1 errno=0 [ 48.563116][ T3498] ================================================================================ [ 48.572651][ T3498] UBSAN: shift-out-of-bounds in fs/jfs/jfs_extent.c:511:16 [ 48.579833][ T3498] shift exponent -1 is negative [ 48.584694][ T3498] CPU: 0 PID: 3498 Comm: syz-executor140 Not tainted 5.15.111-syzkaller #0 [ 48.593276][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 48.603321][ T3498] Call Trace: [ 48.606613][ T3498] [ 48.609558][ T3498] dump_stack_lvl+0x1e3/0x2cb [ 48.614267][ T3498] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 48.620023][ T3498] ? panic+0x84d/0x84d [ 48.624266][ T3498] ? extAlloc+0x106/0x1010 [ 48.628679][ T3498] __ubsan_handle_shift_out_of_bounds+0x3bf/0x420 [ 48.635083][ T3498] ? do_raw_spin_unlock+0x137/0x8b0 [ 48.640270][ T3498] extAlloc+0xe4f/0x1010 [ 48.644503][ T3498] ? jfs_ioc_trim+0x660/0x660 [ 48.649171][ T3498] ? down_write_nested+0x117/0x180 [ 48.654261][ T3498] ? down_read_non_owner+0xa0/0xa0 [ 48.659354][ T3498] ? memset+0x1f/0x40 [ 48.663317][ T3498] jfs_get_block+0x417/0xe50 [ 48.667893][ T3498] ? jfs_dirty_inode+0x230/0x230 [ 48.672827][ T3498] nobh_write_begin+0x398/0xda0 [ 48.677676][ T3498] jfs_write_begin+0x3e/0x80 [ 48.682250][ T3498] ? jfs_dirty_inode+0x230/0x230 [ 48.687179][ T3498] generic_perform_write+0x2bf/0x5b0 [ 48.692483][ T3498] ? grab_cache_page_write_begin+0x90/0x90 [ 48.698298][ T3498] ? file_remove_privs+0x610/0x610 [ 48.703415][ T3498] ? down_write+0x10e/0x170 [ 48.707918][ T3498] __generic_file_write_iter+0x243/0x4f0 [ 48.713598][ T3498] generic_file_write_iter+0xa7/0x1b0 [ 48.718950][ T3498] do_iter_readv_writev+0x594/0x7a0 [ 48.724150][ T3498] ? generic_file_rw_checks+0x260/0x260 [ 48.729695][ T3498] ? common_file_perm+0x17d/0x1d0 [ 48.734718][ T3498] ? fsnotify_perm+0x67/0x5a0 [ 48.739388][ T3498] ? bpf_lsm_file_permission+0x5/0x10 [ 48.744756][ T3498] do_iter_write+0x1ea/0x760 [ 48.749347][ T3498] ? vfs_iter_write+0x69/0xa0 [ 48.754023][ T3498] iter_file_splice_write+0x806/0xfa0 [ 48.759403][ T3498] ? splice_from_pipe+0x230/0x230 [ 48.764421][ T3498] ? generic_file_splice_read+0x54a/0x790 [ 48.770146][ T3498] ? splice_shrink_spd+0xb0/0xb0 [ 48.775141][ T3498] ? common_file_perm+0x17d/0x1d0 [ 48.780298][ T3498] ? splice_from_pipe+0x230/0x230 [ 48.785342][ T3498] direct_splice_actor+0xe3/0x1c0 [ 48.790362][ T3498] splice_direct_to_actor+0x500/0xc10 [ 48.795731][ T3498] ? do_splice_direct+0x3d0/0x3d0 [ 48.800747][ T3498] ? pipe_to_sendpage+0x350/0x350 [ 48.805757][ T3498] ? fsnotify_perm+0x67/0x5a0 [ 48.810418][ T3498] ? bpf_lsm_file_permission+0x5/0x10 [ 48.815793][ T3498] do_splice_direct+0x285/0x3d0 [ 48.820628][ T3498] ? splice_direct_to_actor+0xc10/0xc10 [ 48.826153][ T3498] ? rcu_read_lock_any_held+0xb3/0x160 [ 48.831606][ T3498] do_sendfile+0x625/0xff0 [ 48.836021][ T3498] ? do_pwritev+0x360/0x360 [ 48.840504][ T3498] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 48.846488][ T3498] __se_sys_sendfile64+0x178/0x1e0 [ 48.851607][ T3498] ? __x64_sys_sendfile64+0xa0/0xa0 [ 48.856784][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230 [ 48.862745][ T3498] ? lockdep_hardirqs_on+0x94/0x130 [ 48.867920][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230 [ 48.874068][ T3498] do_syscall_64+0x3d/0xb0 [ 48.878464][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.884525][ T3498] RIP: 0033:0x7fd31a2238d9 [ 48.888922][ 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 [ 48.908590][ T3498] RSP: 002b:00007ffe76a5eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 48.916988][ T3498] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd31a2238d9 [ 48.925054][ T3498] RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 [ 48.933001][ T3498] RBP: 00007fd31a1e3170 R08: 0000000000000000 R09: 0000000000000000 [ 48.941078][ T3498] R10: 0001000000201005 R11: 0000000000000246 R12: 00007fd31a1e3200 [ 48.949030][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 48.956988][ T3498] [ 48.960255][ T3498] ================================================================================ [ 48.969615][ T3498] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 48.976798][ T3498] CPU: 0 PID: 3498 Comm: syz-executor140 Not tainted 5.15.111-syzkaller #0 [ 48.985378][ T3498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 48.995409][ T3498] Call Trace: [ 48.998670][ T3498] [ 49.001587][ T3498] dump_stack_lvl+0x1e3/0x2cb [ 49.006247][ T3498] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 49.011857][ T3498] ? panic+0x84d/0x84d [ 49.015908][ T3498] panic+0x318/0x84d [ 49.019783][ T3498] ? check_panic_on_warn+0x1d/0xa0 [ 49.024889][ T3498] ? fb_is_primary_device+0xcc/0xcc [ 49.030064][ T3498] ? dump_stack_lvl+0x24f/0x2cb [ 49.034898][ T3498] check_panic_on_warn+0x7e/0xa0 [ 49.039829][ T3498] __ubsan_handle_shift_out_of_bounds+0x3de/0x420 [ 49.046226][ T3498] ? do_raw_spin_unlock+0x137/0x8b0 [ 49.051405][ T3498] extAlloc+0xe4f/0x1010 [ 49.055633][ T3498] ? jfs_ioc_trim+0x660/0x660 [ 49.060297][ T3498] ? down_write_nested+0x117/0x180 [ 49.065385][ T3498] ? down_read_non_owner+0xa0/0xa0 [ 49.070476][ T3498] ? memset+0x1f/0x40 [ 49.074435][ T3498] jfs_get_block+0x417/0xe50 [ 49.079005][ T3498] ? jfs_dirty_inode+0x230/0x230 [ 49.083925][ T3498] nobh_write_begin+0x398/0xda0 [ 49.088758][ T3498] jfs_write_begin+0x3e/0x80 [ 49.093344][ T3498] ? jfs_dirty_inode+0x230/0x230 [ 49.098291][ T3498] generic_perform_write+0x2bf/0x5b0 [ 49.103576][ T3498] ? grab_cache_page_write_begin+0x90/0x90 [ 49.109538][ T3498] ? file_remove_privs+0x610/0x610 [ 49.114649][ T3498] ? down_write+0x10e/0x170 [ 49.119259][ T3498] __generic_file_write_iter+0x243/0x4f0 [ 49.124872][ T3498] generic_file_write_iter+0xa7/0x1b0 [ 49.130226][ T3498] do_iter_readv_writev+0x594/0x7a0 [ 49.135403][ T3498] ? generic_file_rw_checks+0x260/0x260 [ 49.140930][ T3498] ? common_file_perm+0x17d/0x1d0 [ 49.145959][ T3498] ? fsnotify_perm+0x67/0x5a0 [ 49.150667][ T3498] ? bpf_lsm_file_permission+0x5/0x10 [ 49.156021][ T3498] do_iter_write+0x1ea/0x760 [ 49.160598][ T3498] ? vfs_iter_write+0x69/0xa0 [ 49.165252][ T3498] iter_file_splice_write+0x806/0xfa0 [ 49.170624][ T3498] ? splice_from_pipe+0x230/0x230 [ 49.175625][ T3498] ? generic_file_splice_read+0x54a/0x790 [ 49.181326][ T3498] ? splice_shrink_spd+0xb0/0xb0 [ 49.186243][ T3498] ? common_file_perm+0x17d/0x1d0 [ 49.191329][ T3498] ? splice_from_pipe+0x230/0x230 [ 49.196325][ T3498] direct_splice_actor+0xe3/0x1c0 [ 49.201328][ T3498] splice_direct_to_actor+0x500/0xc10 [ 49.206683][ T3498] ? do_splice_direct+0x3d0/0x3d0 [ 49.211684][ T3498] ? pipe_to_sendpage+0x350/0x350 [ 49.216686][ T3498] ? fsnotify_perm+0x67/0x5a0 [ 49.221339][ T3498] ? bpf_lsm_file_permission+0x5/0x10 [ 49.226689][ T3498] do_splice_direct+0x285/0x3d0 [ 49.231516][ T3498] ? splice_direct_to_actor+0xc10/0xc10 [ 49.237296][ T3498] ? rcu_read_lock_any_held+0xb3/0x160 [ 49.242777][ T3498] do_sendfile+0x625/0xff0 [ 49.247278][ T3498] ? do_pwritev+0x360/0x360 [ 49.251814][ T3498] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 49.257823][ T3498] __se_sys_sendfile64+0x178/0x1e0 [ 49.262943][ T3498] ? __x64_sys_sendfile64+0xa0/0xa0 [ 49.268498][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230 [ 49.274499][ T3498] ? lockdep_hardirqs_on+0x94/0x130 [ 49.280566][ T3498] ? syscall_enter_from_user_mode+0x2e/0x230 [ 49.286834][ T3498] do_syscall_64+0x3d/0xb0 [ 49.291244][ T3498] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 49.297424][ T3498] RIP: 0033:0x7fd31a2238d9 [ 49.301847][ 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 [ 49.321710][ T3498] RSP: 002b:00007ffe76a5eda8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 [ 49.330141][ T3498] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd31a2238d9 [ 49.338322][ T3498] RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 [ 49.346298][ T3498] RBP: 00007fd31a1e3170 R08: 0000000000000000 R09: 0000000000000000 [ 49.354357][ T3498] R10: 0001000000201005 R11: 0000000000000246 R12: 00007fd31a1e3200 [ 49.362314][ T3498] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 49.370310][ T3498] [ 49.373450][ T3498] Kernel Offset: disabled [ 49.377845][ T3498] Rebooting in 86400 seconds..