[ 484.907353][ T7470] loop1: detected capacity change from 0 to 32768 [ 484.926988][ T7470] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 484.927011][ T7470] CPU: 0 UID: 0 PID: 7470 Comm: syz.1.182 Not tainted syzkaller #0 PREEMPT_{RT,(full)} [ 484.927033][ T7470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 [ 484.927045][ T7470] Call Trace: [ 484.927053][ T7470] [ 484.927062][ T7470] dump_stack_lvl+0xe8/0x150 [ 484.927093][ T7470] sysfs_create_dir_ns+0x271/0x2a0 [ 484.927119][ T7470] ? __pfx_rt_mutex_slowunlock+0x10/0x10 [ 484.927147][ T7470] ? __pfx_sysfs_create_dir_ns+0x10/0x10 [ 484.927171][ T7470] ? rt_spin_unlock+0x160/0x200 [ 484.927194][ T7470] kobject_add_internal+0x631/0xd10 [ 484.927232][ T7470] kobject_init_and_add+0x12b/0x1a0 [ 484.927267][ T7470] ? __pfx_kobject_init_and_add+0x10/0x10 [ 484.927297][ T7470] ? __raw_spin_lock_init+0x45/0x100 [ 484.927325][ T7470] ? __init_swait_queue_head+0xa9/0x150 [ 484.927354][ T7470] gfs2_sys_fs_add+0x257/0x480 [ 484.927376][ T7470] ? is_dynamic_key+0x1ac/0x1c0 [ 484.927406][ T7470] ? __pfx_gfs2_sys_fs_add+0x10/0x10 [ 484.927442][ T7470] ? __pfx_alloc_workqueue_noprof+0x10/0x10 [ 484.927487][ T7470] gfs2_fill_super+0x141c/0x2220 [ 484.927531][ T7470] ? __pfx_gfs2_fill_super+0x10/0x10 [ 484.927557][ T7470] ? rt_spin_unlock+0x14f/0x200 [ 484.927581][ T7470] ? sb_set_blocksize+0x11b/0x210 [ 484.927611][ T7470] ? setup_bdev_super+0x4c1/0x5b0 [ 484.927641][ T7470] get_tree_bdev_flags+0x431/0x4f0 [ 484.927667][ T7470] ? __pfx_gfs2_fill_super+0x10/0x10 [ 484.927693][ T7470] ? __pfx_get_tree_bdev_flags+0x10/0x10 [ 484.927718][ T7470] ? __pfx_vfs_parse_comma_sep+0x10/0x10 [ 484.927753][ T7470] gfs2_get_tree+0x51/0x1e0 [ 484.927784][ T7470] vfs_get_tree+0x92/0x2a0 [ 484.927812][ T7470] do_new_mount+0x341/0xd30 [ 484.927830][ T7470] ? apparmor_capable+0x126/0x170 [ 484.927865][ T7470] ? __pfx_do_new_mount+0x10/0x10 [ 484.927885][ T7470] ? ns_capable+0x89/0xe0 [ 484.927914][ T7470] ? user_path_at+0xd4/0x160 [ 484.927941][ T7470] ? user_path_at+0xd4/0x160 [ 484.927965][ T7470] __se_sys_mount+0x31d/0x420 [ 484.927992][ T7470] ? __pfx___se_sys_mount+0x10/0x10 [ 484.928019][ T7470] ? __x64_sys_mount+0x20/0xc0 [ 484.928038][ T7470] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 484.928061][ T7470] do_syscall_64+0x15f/0xf80 [ 484.928086][ T7470] ? trace_irq_disable+0x3b/0x140 [ 484.928113][ T7470] ? clear_bhb_loop+0x40/0x90 [ 484.928137][ T7470] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 484.928157][ T7470] RIP: 0033:0x7f9cca77c18a [ 484.928176][ T7470] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 484.928193][ T7470] RSP: 002b:00007f9cc9ddde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 484.928215][ T7470] RAX: ffffffffffffffda RBX: 00007f9cc9dddee0 RCX: 00007f9cca77c18a [ 484.928230][ T7470] RDX: 0000200000000000 RSI: 0000200000012500 RDI: 00007f9cc9dddea0 [ 484.928244][ T7470] RBP: 0000200000000000 R08: 00007f9cc9dddee0 R09: 0000000000000000 [ 484.928258][ T7470] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 484.928270][ T7470] R13: 00007f9cc9dddea0 R14: 0000000000012588 R15: 0000200000000080 [ 484.928301][ T7470] [ 484.943136][ T7470] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 484.943158][ T7470] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 486.288074][ T1518] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 486.513284][ T1518] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 486.738021][ T1518] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 486.955687][ T1518] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 487.679589][ T1518] bridge_slave_1: left allmulticast mode [ 487.679615][ T1518] bridge_slave_1: left promiscuous mode [ 487.679805][ T1518] bridge0: port 2(bridge_slave_1) entered disabled state [ 487.740120][ T1518] bridge_slave_0: left allmulticast mode [ 487.740143][ T1518] bridge_slave_0: left promiscuous mode [ 487.740331][ T1518] bridge0: port 1(bridge_slave_0) entered disabled state [ 488.289801][ T1518] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 488.369780][ T1518] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 488.411028][ T1518] bond0 (unregistering): Released all slaves [ 488.462073][ T5272] 8021q: adding VLAN 0 to HW filter on device eth1 [ 489.001907][ T5272] 8021q: adding VLAN 0 to HW filter on device eth2 [ 489.443689][ T5272] 8021q: adding VLAN 0 to HW filter on device eth3 [ 489.689271][ T1518] hsr_slave_0: left promiscuous mode [ 489.729329][ T1518] hsr_slave_1: left promiscuous mode [ 489.730425][ T1518] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 489.730451][ T1518] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 489.771396][ T1518] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 489.771423][ T1518] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 489.870651][ T1518] veth1_macvtap: left promiscuous mode [ 489.870712][ T1518] veth0_macvtap: left promiscuous mode [ 489.874538][ T1518] veth1_vlan: left promiscuous mode [ 489.874650][ T1518] veth0_vlan: left promiscuous mode [ 490.430423][ T1518] team0 (unregistering): Port device team_slave_1 removed [ 490.469784][ T1518] team0 (unregistering): Port device team_slave_0 removed [ 490.647517][ T5272] 8021q: adding VLAN 0 to HW filter on device eth4 Warning: Permanently added '10.128.1.179' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 501.512353][ T1336] ieee802154 phy0 wpan0: encryption failed: -22 [ 501.512468][ T1336] ieee802154 phy1 wpan1: encryption failed: -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 521.989245][ T6430] gfs2: fsid=syz:syz.0: 1 glocks left after 124 seconds; still waiting executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 562.952305][ T1336] ieee802154 phy0 wpan0: encryption failed: -22 [ 562.952423][ T1336] ieee802154 phy1 wpan1: encryption failed: -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 583.429233][ T6430] gfs2: fsid=syz:syz.0: 1 glocks left after 186 seconds; still waiting executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 624.393495][ T1336] ieee802154 phy0 wpan0: encryption failed: -22 [ 624.393602][ T1336] ieee802154 phy1 wpan1: encryption failed: -22 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program