c/0xa0
[ 100.220597][ T4549] ? clear_bhb_loop+0x60/0xb0
[ 100.225470][ T4549] ? clear_bhb_loop+0x60/0xb0
[ 100.230162][ T4549] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 100.236087][ T4549] RIP: 0033:0x7f063579c14a
[ 100.240603][ T4549] 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
[ 100.260867][ T4549] RSP: 002b:00007f06365b1e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 100.269473][ T4549] RAX: ffffffffffffffda RBX: 00007f06365b1ee0 RCX: 00007f063579c14a
[ 100.278011][ T4549] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f06365b1ea0
[ 100.286872][ T4549] RBP: 00002000000124c0 R08: 00007f06365b1ee0 R09: 0000000000000000
[ 100.295530][ T4549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 100.303787][ T4549] R13: 00007f06365b1ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 100.312044][ T4549]
[ 100.318709][ T4549] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 100.332012][ T4549] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 100.341568][ T4380] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485
[ 100.357196][ T4380] CPU: 1 PID: 4380 Comm: syz-executor Not tainted syzkaller #0
[ 100.364965][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 100.375328][ T4380] Call Trace:
[ 100.378906][ T4380]
[ 100.381876][ T4380] dump_stack_lvl+0x188/0x24e
[ 100.386698][ T4380] ? gfs2_assert_warn_i+0xc3/0x2c0
[ 100.391953][ T4380] ? show_regs_print_info+0x12/0x12
[ 100.397297][ T4380] ? load_image+0x400/0x400
[ 100.402197][ T4380] ? do_raw_spin_unlock+0x11d/0x230
[ 100.407696][ T4380] gfs2_assert_warn_i+0x18f/0x2c0
[ 100.412771][ T4380] gfs2_quota_cleanup+0x4b4/0x6a0
[ 100.418104][ T4380] gfs2_put_super+0x22f/0x8c0
[ 100.422339][ T4329] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 100.422813][ T4380] ? gfs2_evict_inode+0x11d0/0x11d0
[ 100.436278][ T4380] generic_shutdown_super+0x130/0x340
[ 100.441734][ T4380] kill_block_super+0x7c/0xe0
[ 100.446559][ T4380] deactivate_locked_super+0x93/0xf0
[ 100.452112][ T4380] cleanup_mnt+0x42c/0x4b0
[ 100.456757][ T4380] ? lockdep_hardirqs_on+0x94/0x140
[ 100.462013][ T4380] task_work_run+0x1d0/0x260
[ 100.466857][ T4380] ? task_work_cancel+0x220/0x220
[ 100.471906][ T4329] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 100.472286][ T4380] ? exit_to_user_mode_loop+0x3b/0x110
[ 100.486083][ T4380] exit_to_user_mode_loop+0xe6/0x110
[ 100.491687][ T4380] exit_to_user_mode_prepare+0xee/0x180
[ 100.497470][ T4380] syscall_exit_to_user_mode+0x16/0x40
[ 100.503147][ T4380] do_syscall_64+0x58/0xa0
[ 100.507982][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 100.513142][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 100.518039][ T4380] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 100.523969][ T4380] RIP: 0033:0x7f245af9c117
[ 100.528623][ T4380] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 100.529118][ T4387] device veth0_macvtap entered promiscuous mode
[ 100.548919][ T4380] RSP: 002b:00007ffce7982b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 100.548954][ T4380] RAX: 0000000000000000 RBX: 00007f245b00471f RCX: 00007f245af9c117
[ 100.548968][ T4380] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce7982bd0
[ 100.548980][ T4380] RBP: 00007ffce7982bd0 R08: 00007ffce7983bd0 R09: 00000000ffffffff
[ 100.548993][ T4380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce7983c60
[ 100.549005][ T4380] R13: 00007f245b00471f R14: 000000000001729a R15: 00007ffce7983ca0
[ 100.549035][ T4380]
[ 101.019236][ T4554] loop4: detected capacity change from 0 to 32768
[ 101.038584][ T4554] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 101.046588][ T4554] CPU: 1 PID: 4554 Comm: syz.4.33 Not tainted syzkaller #0
[ 101.054608][ T4554] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 101.065311][ T4554] Call Trace:
[ 101.068615][ T4554]
[ 101.071849][ T4554] dump_stack_lvl+0x188/0x24e
[ 101.076664][ T4554] ? show_regs_print_info+0x12/0x12
[ 101.082172][ T4554] ? load_image+0x400/0x400
[ 101.086823][ T4554] sysfs_create_dir_ns+0x26a/0x290
[ 101.092159][ T4554] ? sysfs_warn_dup+0xa0/0xa0
[ 101.096965][ T4554] ? do_raw_spin_unlock+0x11d/0x230
[ 101.102469][ T4554] kobject_add_internal+0x61c/0xcc0
[ 101.108069][ T4554] kobject_init_and_add+0x128/0x190
[ 101.113418][ T4554] ? lockdep_softirqs_off+0x430/0x430
[ 101.118933][ T4554] ? kobject_add+0x230/0x230
[ 101.123591][ T4554] ? __init_swait_queue_head+0xa5/0x150
[ 101.129366][ T4554] gfs2_sys_fs_add+0x24f/0x4b0
[ 101.134160][ T4554] ? gfs2_recover_set+0x240/0x240
[ 101.139378][ T4554] ? snprintf+0xe5/0x140
[ 101.143812][ T4554] ? vscnprintf+0x80/0x80
[ 101.148249][ T4554] gfs2_fill_super+0x128c/0x1fb0
[ 101.153208][ T4554] ? gfs2_reconfigure+0xd30/0xd30
[ 101.158433][ T4554] ? sb_set_blocksize+0xa5/0xe0
[ 101.163583][ T4554] get_tree_bdev+0x3f1/0x610
[ 101.168454][ T4554] ? gfs2_reconfigure+0xd30/0xd30
[ 101.173789][ T4554] gfs2_get_tree+0x4d/0x1e0
[ 101.178492][ T4554] vfs_get_tree+0x88/0x270
[ 101.183272][ T4554] do_new_mount+0x24a/0xa40
[ 101.188003][ T4554] __se_sys_mount+0x2e3/0x3d0
[ 101.192782][ T4554] ? __x64_sys_mount+0xc0/0xc0
[ 101.200547][ T4554] ? lockdep_hardirqs_on+0x94/0x140
[ 101.205929][ T4554] ? __x64_sys_mount+0x1c/0xc0
[ 101.210890][ T4554] do_syscall_64+0x4c/0xa0
[ 101.215409][ T4554] ? clear_bhb_loop+0x60/0xb0
[ 101.220195][ T4554] ? clear_bhb_loop+0x60/0xb0
[ 101.224884][ T4554] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 101.230838][ T4554] RIP: 0033:0x7f5a7119c14a
[ 101.235277][ T4554] 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
[ 101.255588][ T4554] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 101.264192][ T4554] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 101.272275][ T4554] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 101.280515][ T4554] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 101.288646][ T4554] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 101.296889][ T4554] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 101.305236][ T4554]
[ 101.316336][ T4554] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 101.330896][ T4554] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 101.928382][ T4558] loop0: detected capacity change from 0 to 32768
[ 101.938620][ T4329] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 101.948567][ T4558] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 101.957314][ T4558] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 101.966035][ T4329] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
[ 101.978982][ T4558] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 101.990545][ T4462] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 102.008265][ T4462] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 102.046898][ T4329] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
[ 102.334352][ T4560] loop4: detected capacity change from 0 to 32768
[ 102.377904][ T4560] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 102.385513][ T4560] CPU: 1 PID: 4560 Comm: syz.4.37 Not tainted syzkaller #0
[ 102.393023][ T4560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 102.403548][ T4560] Call Trace:
[ 102.406857][ T4560]
[ 102.409817][ T4560] dump_stack_lvl+0x188/0x24e
[ 102.414725][ T4560] ? show_regs_print_info+0x12/0x12
[ 102.419963][ T4560] ? load_image+0x400/0x400
[ 102.424713][ T4560] sysfs_create_dir_ns+0x26a/0x290
[ 102.429887][ T4560] ? sysfs_warn_dup+0xa0/0xa0
[ 102.434733][ T4560] ? do_raw_spin_unlock+0x11d/0x230
[ 102.440501][ T4560] kobject_add_internal+0x61c/0xcc0
[ 102.445837][ T4560] kobject_init_and_add+0x128/0x190
[ 102.451074][ T4560] ? lockdep_softirqs_off+0x430/0x430
[ 102.456575][ T4560] ? kobject_add+0x230/0x230
[ 102.461327][ T4560] ? __init_swait_queue_head+0xa5/0x150
[ 102.466927][ T4560] gfs2_sys_fs_add+0x24f/0x4b0
[ 102.471752][ T4560] ? gfs2_recover_set+0x240/0x240
[ 102.476811][ T4560] ? snprintf+0xe5/0x140
[ 102.481557][ T4560] ? vscnprintf+0x80/0x80
[ 102.486129][ T4560] gfs2_fill_super+0x128c/0x1fb0
[ 102.491326][ T4560] ? gfs2_reconfigure+0xd30/0xd30
[ 102.496696][ T4560] ? sb_set_blocksize+0xa5/0xe0
[ 102.501941][ T4560] get_tree_bdev+0x3f1/0x610
[ 102.506577][ T4560] ? gfs2_reconfigure+0xd30/0xd30
[ 102.512162][ T4560] gfs2_get_tree+0x4d/0x1e0
[ 102.516805][ T4560] vfs_get_tree+0x88/0x270
[ 102.521553][ T4560] do_new_mount+0x24a/0xa40
[ 102.526226][ T4560] __se_sys_mount+0x2e3/0x3d0
[ 102.531309][ T4560] ? __x64_sys_mount+0xc0/0xc0
[ 102.536207][ T4560] ? lockdep_hardirqs_on+0x94/0x140
[ 102.541441][ T4560] ? __x64_sys_mount+0x1c/0xc0
[ 102.546248][ T4560] do_syscall_64+0x4c/0xa0
[ 102.550714][ T4560] ? clear_bhb_loop+0x60/0xb0
[ 102.553983][ T4462] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 545ms
[ 102.555499][ T4560] ? clear_bhb_loop+0x60/0xb0
[ 102.567682][ T4560] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 102.573635][ T4560] RIP: 0033:0x7f5a7119c14a
[ 102.578089][ T4560] 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
[ 102.579487][ T4462] gfs2: fsid=syz:syz.0: jid=0: Done
[ 102.598069][ T4560] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 102.598105][ T4560] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 102.598119][ T4560] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 102.598132][ T4560] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 102.598144][ T4560] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 102.598156][ T4560] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 102.598186][ T4560]
[ 102.599139][ T4560] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 102.606693][ T4387] device veth1_macvtap entered promiscuous mode
[ 102.612143][ T4560] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 102.699178][ T4391] 8021q: adding VLAN 0 to HW filter on device batadv0
2026/02/08 13:34:54 executed programs: 31
[ 102.888365][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 103.090623][ T4564] loop1: detected capacity change from 0 to 32768
[ 103.098650][ T4558] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 103.119179][ T4564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 103.127181][ T4564] CPU: 0 PID: 4564 Comm: syz.1.39 Not tainted syzkaller #0
[ 103.134770][ T4564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 103.145218][ T4564] Call Trace:
[ 103.148622][ T4564]
[ 103.151598][ T4564] dump_stack_lvl+0x188/0x24e
[ 103.156342][ T4564] ? show_regs_print_info+0x12/0x12
[ 103.161606][ T4564] ? load_image+0x400/0x400
[ 103.166430][ T4564] sysfs_create_dir_ns+0x26a/0x290
[ 103.171939][ T4564] ? sysfs_warn_dup+0xa0/0xa0
[ 103.176750][ T4564] ? do_raw_spin_unlock+0x11d/0x230
[ 103.182173][ T4564] kobject_add_internal+0x61c/0xcc0
[ 103.187698][ T4564] kobject_init_and_add+0x128/0x190
[ 103.192941][ T4564] ? lockdep_softirqs_off+0x430/0x430
[ 103.198523][ T4564] ? kobject_add+0x230/0x230
[ 103.203181][ T4564] ? __init_swait_queue_head+0xa5/0x150
[ 103.208949][ T4564] gfs2_sys_fs_add+0x24f/0x4b0
[ 103.213844][ T4564] ? gfs2_recover_set+0x240/0x240
[ 103.219002][ T4564] ? snprintf+0xe5/0x140
[ 103.223378][ T4564] ? vscnprintf+0x80/0x80
[ 103.227839][ T4564] gfs2_fill_super+0x128c/0x1fb0
[ 103.233278][ T4564] ? gfs2_reconfigure+0xd30/0xd30
[ 103.238518][ T4564] ? sb_set_blocksize+0xa5/0xe0
[ 103.243490][ T4564] get_tree_bdev+0x3f1/0x610
[ 103.248539][ T4564] ? gfs2_reconfigure+0xd30/0xd30
[ 103.253679][ T4564] gfs2_get_tree+0x4d/0x1e0
[ 103.258307][ T4564] vfs_get_tree+0x88/0x270
[ 103.262762][ T4564] do_new_mount+0x24a/0xa40
[ 103.267400][ T4564] __se_sys_mount+0x2e3/0x3d0
[ 103.267618][ T4566] loop4: detected capacity change from 0 to 32768
[ 103.272098][ T4564] ? __x64_sys_mount+0xc0/0xc0
[ 103.272124][ T4564] ? lockdep_hardirqs_on+0x94/0x140
[ 103.272141][ T4564] ? __x64_sys_mount+0x1c/0xc0
[ 103.286989][ T4566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 103.288794][ T4564] do_syscall_64+0x4c/0xa0
[ 103.305472][ T4564] ? clear_bhb_loop+0x60/0xb0
[ 103.310427][ T4564] ? clear_bhb_loop+0x60/0xb0
[ 103.315125][ T4564] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 103.321289][ T4564] RIP: 0033:0x7f063579c14a
[ 103.325721][ T4564] 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
[ 103.345712][ T4564] RSP: 002b:00007f06365b1e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 103.354576][ T4564] RAX: ffffffffffffffda RBX: 00007f06365b1ee0 RCX: 00007f063579c14a
[ 103.362655][ T4564] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f06365b1ea0
[ 103.370899][ T4564] RBP: 00002000000124c0 R08: 00007f06365b1ee0 R09: 0000000000000000
[ 103.379087][ T4564] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 103.387611][ T4564] R13: 00007f06365b1ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 103.395790][ T4564]
[ 103.398936][ T4566] CPU: 1 PID: 4566 Comm: syz.4.40 Not tainted syzkaller #0
[ 103.399623][ T4564] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 103.406262][ T4566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 103.406275][ T4566] Call Trace:
[ 103.406283][ T4566]
[ 103.406290][ T4566] dump_stack_lvl+0x188/0x24e
[ 103.420056][ T4564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 103.430062][ T4566] ? show_regs_print_info+0x12/0x12
[ 103.430092][ T4566] ? load_image+0x400/0x400
[ 103.457948][ T4566] sysfs_create_dir_ns+0x26a/0x290
[ 103.463177][ T4566] ? sysfs_warn_dup+0xa0/0xa0
[ 103.468130][ T4566] ? do_raw_spin_unlock+0x11d/0x230
[ 103.473603][ T4566] kobject_add_internal+0x61c/0xcc0
[ 103.478990][ T4566] kobject_init_and_add+0x128/0x190
[ 103.484553][ T4566] ? lockdep_softirqs_off+0x430/0x430
[ 103.490030][ T4566] ? kobject_add+0x230/0x230
[ 103.494724][ T4566] ? __init_swait_queue_head+0xa5/0x150
[ 103.500738][ T4566] gfs2_sys_fs_add+0x24f/0x4b0
[ 103.505539][ T4566] ? gfs2_recover_set+0x240/0x240
[ 103.510672][ T4566] ? snprintf+0xe5/0x140
[ 103.515118][ T4566] ? vscnprintf+0x80/0x80
[ 103.519638][ T4566] gfs2_fill_super+0x128c/0x1fb0
[ 103.524603][ T4566] ? gfs2_reconfigure+0xd30/0xd30
[ 103.529742][ T4566] ? sb_set_blocksize+0xa5/0xe0
[ 103.534694][ T4566] get_tree_bdev+0x3f1/0x610
[ 103.539468][ T4566] ? gfs2_reconfigure+0xd30/0xd30
[ 103.544675][ T4566] gfs2_get_tree+0x4d/0x1e0
[ 103.549279][ T4566] vfs_get_tree+0x88/0x270
[ 103.553801][ T4566] do_new_mount+0x24a/0xa40
[ 103.558531][ T4566] __se_sys_mount+0x2e3/0x3d0
[ 103.563306][ T4566] ? __x64_sys_mount+0xc0/0xc0
[ 103.568169][ T4566] ? lockdep_hardirqs_on+0x94/0x140
[ 103.573584][ T4566] ? __x64_sys_mount+0x1c/0xc0
[ 103.578424][ T4566] do_syscall_64+0x4c/0xa0
[ 103.583116][ T4566] ? clear_bhb_loop+0x60/0xb0
[ 103.587891][ T4566] ? clear_bhb_loop+0x60/0xb0
[ 103.592762][ T4566] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 103.598749][ T4566] RIP: 0033:0x7f5a7119c14a
[ 103.603259][ T4566] 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
[ 103.623625][ T4566] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 103.632312][ T4566] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 103.640551][ T4566] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 103.648885][ T4566] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 103.657326][ T4566] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 103.665589][ T4566] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 103.673695][ T4566]
[ 103.680046][ T4566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 103.693446][ T4566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 103.731341][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 103.802833][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 103.817429][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 103.839324][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 103.859736][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 103.902658][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 103.924052][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 103.935254][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 103.946251][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 103.958316][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 103.969572][ T4387] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 103.998474][ T4558] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 104.018971][ T4307] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 104.033215][ T4387] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 104.045885][ T4387] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 104.189643][ T4380] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error
[ 104.189643][ T4380] inode = 11 2339
[ 104.189643][ T4380] function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 464
[ 104.238174][ T4380] gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:qobnN t:EX d:EX/0 a:0 v:0 r:3 m:20 p:1
[ 104.258998][ T4380] gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:4380 [syz-executor] gfs2_quota_sync+0x32c/0x700
[ 104.358497][ T4380] gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
[ 104.398444][ T4380] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 104.451201][ T4571] loop1: detected capacity change from 0 to 32768
[ 104.459671][ T4571] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 104.467497][ T4571] CPU: 0 PID: 4571 Comm: syz.1.41 Not tainted syzkaller #0
[ 104.474746][ T4571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 104.485110][ T4571] Call Trace:
[ 104.488428][ T4571]
[ 104.491477][ T4571] dump_stack_lvl+0x188/0x24e
[ 104.496208][ T4571] ? show_regs_print_info+0x12/0x12
[ 104.501588][ T4571] ? load_image+0x400/0x400
[ 104.506150][ T4571] sysfs_create_dir_ns+0x26a/0x290
[ 104.511841][ T4571] ? sysfs_warn_dup+0xa0/0xa0
[ 104.516748][ T4571] ? do_raw_spin_unlock+0x11d/0x230
[ 104.522180][ T4571] kobject_add_internal+0x61c/0xcc0
[ 104.527623][ T4571] kobject_init_and_add+0x128/0x190
[ 104.533408][ T4571] ? lockdep_softirqs_off+0x430/0x430
[ 104.538915][ T4571] ? kobject_add+0x230/0x230
[ 104.543561][ T4571] ? __init_swait_queue_head+0xa5/0x150
[ 104.549592][ T4571] gfs2_sys_fs_add+0x24f/0x4b0
[ 104.554765][ T4571] ? gfs2_recover_set+0x240/0x240
[ 104.560032][ T4571] ? snprintf+0xe5/0x140
[ 104.564398][ T4571] ? vscnprintf+0x80/0x80
[ 104.568885][ T4571] gfs2_fill_super+0x128c/0x1fb0
[ 104.573891][ T4571] ? gfs2_reconfigure+0xd30/0xd30
[ 104.579414][ T4571] ? sb_set_blocksize+0xa5/0xe0
[ 104.584406][ T4571] get_tree_bdev+0x3f1/0x610
[ 104.589486][ T4571] ? gfs2_reconfigure+0xd30/0xd30
[ 104.595156][ T4571] gfs2_get_tree+0x4d/0x1e0
[ 104.599712][ T4571] vfs_get_tree+0x88/0x270
[ 104.604221][ T4571] do_new_mount+0x24a/0xa40
[ 104.609038][ T4571] __se_sys_mount+0x2e3/0x3d0
[ 104.613844][ T4571] ? __x64_sys_mount+0xc0/0xc0
[ 104.618962][ T4571] ? lockdep_hardirqs_on+0x94/0x140
[ 104.624391][ T4571] ? __x64_sys_mount+0x1c/0xc0
[ 104.629280][ T4571] do_syscall_64+0x4c/0xa0
[ 104.633957][ T4571] ? clear_bhb_loop+0x60/0xb0
[ 104.638835][ T4571] ? clear_bhb_loop+0x60/0xb0
[ 104.643644][ T4571] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 104.649667][ T4571] RIP: 0033:0x7f063579c14a
[ 104.654537][ T4571] 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
[ 104.674975][ T4571] RSP: 002b:00007f06365b1e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 104.683829][ T4571] RAX: ffffffffffffffda RBX: 00007f06365b1ee0 RCX: 00007f063579c14a
[ 104.692019][ T4571] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f06365b1ea0
[ 104.700118][ T4571] RBP: 00002000000124c0 R08: 00007f06365b1ee0 R09: 0000000000000000
[ 104.708327][ T4571] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 104.716461][ T4571] R13: 00007f06365b1ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 104.725193][ T4571]
[ 104.728857][ T4571] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 104.742438][ T4571] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 104.808750][ T4380] gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount.
[ 104.825117][ T4573] loop4: detected capacity change from 0 to 32768
[ 104.846926][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 104.857387][ T4573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 104.865734][ T4573] CPU: 1 PID: 4573 Comm: syz.4.43 Not tainted syzkaller #0
[ 104.873065][ T4573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 104.883335][ T4573] Call Trace:
[ 104.886826][ T4573]
[ 104.889790][ T4573] dump_stack_lvl+0x188/0x24e
[ 104.894510][ T4573] ? show_regs_print_info+0x12/0x12
[ 104.899743][ T4573] ? load_image+0x400/0x400
[ 104.904542][ T4573] sysfs_create_dir_ns+0x26a/0x290
[ 104.909846][ T4573] ? sysfs_warn_dup+0xa0/0xa0
[ 104.914548][ T4573] ? do_raw_spin_unlock+0x11d/0x230
[ 104.919847][ T4573] kobject_add_internal+0x61c/0xcc0
[ 104.925062][ T4573] kobject_init_and_add+0x128/0x190
[ 104.930279][ T4573] ? lockdep_softirqs_off+0x430/0x430
[ 104.935672][ T4573] ? kobject_add+0x230/0x230
[ 104.940375][ T4573] ? __init_swait_queue_head+0xa5/0x150
[ 104.946126][ T4573] gfs2_sys_fs_add+0x24f/0x4b0
[ 104.950910][ T4573] ? gfs2_recover_set+0x240/0x240
[ 104.956229][ T4573] ? snprintf+0xe5/0x140
[ 104.960854][ T4573] ? vscnprintf+0x80/0x80
[ 104.965208][ T4573] gfs2_fill_super+0x128c/0x1fb0
[ 104.970522][ T4573] ? gfs2_reconfigure+0xd30/0xd30
[ 104.975666][ T4573] ? sb_set_blocksize+0xa5/0xe0
[ 104.980808][ T4573] get_tree_bdev+0x3f1/0x610
[ 104.985593][ T4573] ? gfs2_reconfigure+0xd30/0xd30
[ 104.990717][ T4573] gfs2_get_tree+0x4d/0x1e0
[ 104.995327][ T4573] vfs_get_tree+0x88/0x270
[ 104.999860][ T4573] do_new_mount+0x24a/0xa40
[ 105.004471][ T4573] __se_sys_mount+0x2e3/0x3d0
[ 105.009368][ T4573] ? __x64_sys_mount+0xc0/0xc0
[ 105.014172][ T4573] ? lockdep_hardirqs_on+0x94/0x140
[ 105.019422][ T4573] ? __x64_sys_mount+0x1c/0xc0
[ 105.024499][ T4573] do_syscall_64+0x4c/0xa0
[ 105.029553][ T4573] ? clear_bhb_loop+0x60/0xb0
[ 105.034242][ T4573] ? clear_bhb_loop+0x60/0xb0
[ 105.039114][ T4573] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 105.045286][ T4573] RIP: 0033:0x7f5a7119c14a
[ 105.049892][ T4573] 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
[ 105.069884][ T4573] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 105.078687][ T4573] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 105.086713][ T4573] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 105.094959][ T4573] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 105.103118][ T4573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 105.112503][ T4573] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 105.120873][ T4573]
[ 105.126584][ T4573] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 105.142688][ T4573] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 105.155356][ T4380] gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0
[ 105.162994][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 105.171940][ T4380] gfs2: fsid=syz:syz.0: File system withdrawn
[ 105.178232][ T4380] CPU: 1 PID: 4380 Comm: syz-executor Not tainted syzkaller #0
[ 105.186110][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 105.196209][ T4380] Call Trace:
[ 105.199524][ T4380]
[ 105.202488][ T4380] dump_stack_lvl+0x188/0x24e
[ 105.207216][ T4380] ? kobject_uevent_env+0x35f/0x8a0
[ 105.208133][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 105.212433][ T4380] ? show_regs_print_info+0x12/0x12
[ 105.212466][ T4380] ? load_image+0x400/0x400
[ 105.212487][ T4380] ? kobject_uevent_env+0x35f/0x8a0
[ 105.212518][ T4380] gfs2_withdraw+0x1398/0x16c0
[ 105.212557][ T4380] ? gfs2_lm+0x240/0x240
[ 105.212595][ T4380] ? gfs2_consist_inode_i+0xf1/0x110
[ 105.212618][ T4380] gfs2_inode_refresh+0xb64/0xfd0
[ 105.212647][ T4380] ? gfs2_inode_metasync+0xf0/0xf0
[ 105.249853][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 105.251111][ T4380] ? gfs2_glock_nq+0xcf0/0x14e0
[ 105.251148][ T4380] gfs2_instantiate+0x15e/0x210
[ 105.251172][ T4380] gfs2_glock_wait+0x1d0/0x2a0
[ 105.251194][ T4380] do_sync+0x4bf/0xc40
[ 105.251216][ T4380] ? gfs2_quota_sync+0x32c/0x700
[ 105.294624][ T4380] ? slot_put+0x1e0/0x1e0
[ 105.299098][ T4380] ? gfs2_quota_sync+0x32c/0x700
[ 105.304182][ T4380] ? do_raw_spin_unlock+0x11d/0x230
[ 105.309424][ T4380] gfs2_quota_sync+0x32c/0x700
[ 105.314336][ T4380] gfs2_sync_fs+0x48/0xb0
[ 105.318720][ T4380] sync_filesystem+0xe6/0x220
[ 105.323446][ T4380] generic_shutdown_super+0x6b/0x340
[ 105.329559][ T4380] kill_block_super+0x7c/0xe0
[ 105.334456][ T4380] deactivate_locked_super+0x93/0xf0
[ 105.341170][ T4380] cleanup_mnt+0x42c/0x4b0
[ 105.345628][ T4380] ? lockdep_hardirqs_on+0x94/0x140
[ 105.350949][ T4380] task_work_run+0x1d0/0x260
[ 105.355590][ T4380] ? task_work_cancel+0x220/0x220
[ 105.360662][ T4380] ? exit_to_user_mode_loop+0x3b/0x110
[ 105.366342][ T4380] exit_to_user_mode_loop+0xe6/0x110
[ 105.371934][ T4380] exit_to_user_mode_prepare+0xee/0x180
[ 105.378213][ T4380] syscall_exit_to_user_mode+0x16/0x40
[ 105.383726][ T4380] do_syscall_64+0x58/0xa0
[ 105.388660][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 105.393364][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 105.398248][ T4380] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 105.404183][ T4380] RIP: 0033:0x7f245af9c117
[ 105.408658][ T4380] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 105.428765][ T4380] RSP: 002b:00007ffce7982b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 105.437326][ T4380] RAX: 0000000000000000 RBX: 00007f245b00471f RCX: 00007f245af9c117
[ 105.445368][ T4380] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce7982bd0
[ 105.454010][ T4380] RBP: 00007ffce7982bd0 R08: 00007ffce7983bd0 R09: 00000000ffffffff
[ 105.462996][ T4380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce7983c60
[ 105.471093][ T4380] R13: 00007f245b00471f R14: 0000000000018de3 R15: 00007ffce7983ca0
[ 105.479393][ T4380]
[ 105.691908][ T4380] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485
[ 105.728840][ T4380] CPU: 0 PID: 4380 Comm: syz-executor Not tainted syzkaller #0
[ 105.736466][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 105.747086][ T4380] Call Trace:
[ 105.750480][ T4380]
[ 105.753632][ T4380] dump_stack_lvl+0x188/0x24e
[ 105.758569][ T4380] ? gfs2_assert_warn_i+0xc3/0x2c0
[ 105.764005][ T4380] ? show_regs_print_info+0x12/0x12
[ 105.769367][ T4380] ? load_image+0x400/0x400
[ 105.774285][ T4380] ? do_raw_spin_unlock+0x11d/0x230
[ 105.779728][ T4380] gfs2_assert_warn_i+0x18f/0x2c0
[ 105.784869][ T4380] gfs2_quota_cleanup+0x4b4/0x6a0
[ 105.790234][ T4380] gfs2_put_super+0x22f/0x8c0
[ 105.795056][ T4380] ? gfs2_evict_inode+0x11d0/0x11d0
[ 105.800547][ T4380] generic_shutdown_super+0x130/0x340
[ 105.806305][ T4380] kill_block_super+0x7c/0xe0
[ 105.811101][ T4380] deactivate_locked_super+0x93/0xf0
[ 105.816516][ T4380] cleanup_mnt+0x42c/0x4b0
[ 105.821146][ T4380] ? lockdep_hardirqs_on+0x94/0x140
[ 105.826641][ T4380] task_work_run+0x1d0/0x260
[ 105.831716][ T4380] ? task_work_cancel+0x220/0x220
[ 105.837063][ T4380] ? exit_to_user_mode_loop+0x3b/0x110
[ 105.842786][ T4380] exit_to_user_mode_loop+0xe6/0x110
[ 105.848592][ T4380] exit_to_user_mode_prepare+0xee/0x180
[ 105.854292][ T4380] syscall_exit_to_user_mode+0x16/0x40
[ 105.859959][ T4380] do_syscall_64+0x58/0xa0
[ 105.864674][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 105.869638][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 105.874609][ T4380] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 105.880623][ T4380] RIP: 0033:0x7f245af9c117
[ 105.885073][ T4380] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 105.905683][ T4380] RSP: 002b:00007ffce7982b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 105.914323][ T4380] RAX: 0000000000000000 RBX: 00007f245b00471f RCX: 00007f245af9c117
[ 105.918117][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
[ 105.922318][ T4380] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce7982bd0
[ 105.922336][ T4380] RBP: 00007ffce7982bd0 R08: 00007ffce7983bd0 R09: 00000000ffffffff
[ 105.922350][ T4380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce7983c60
[ 105.922362][ T4380] R13: 00007f245b00471f R14: 0000000000018de3 R15: 00007ffce7983ca0
[ 105.922390][ T4380]
[ 106.407311][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
[ 106.507966][ T4387] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 106.578424][ T4387] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 106.691621][ T4387] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 107.091054][ T4387] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 107.091735][ T4587] loop0: detected capacity change from 0 to 32768
[ 107.110663][ T4587] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 107.119050][ T4587] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 107.132014][ T4587] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 107.154664][ T4391] device veth0_vlan entered promiscuous mode
[ 107.168855][ T4391] device veth1_vlan entered promiscuous mode
[ 107.200011][ T4391] device veth0_macvtap entered promiscuous mode
[ 107.210651][ T4391] device veth1_macvtap entered promiscuous mode
[ 107.229072][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 107.240863][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.251124][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 107.262371][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.272464][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 107.283179][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.301316][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0
[ 107.351050][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.372951][ T4391] batman_adv: batadv0: Interface activated: batadv_slave_0
[ 107.393836][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 107.412677][ T22] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 107.429965][ T22] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 107.438078][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.469058][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 107.547972][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.603359][ T22] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 173ms
[ 107.649968][ T22] gfs2: fsid=syz:syz.0: jid=0: Done
[ 107.676620][ T4587] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 107.720203][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 107.790890][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 107.914376][ T4391] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1
[ 107.968395][ T4591] loop4: detected capacity change from 0 to 32768
[ 107.980076][ T4591] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 107.987974][ T4591] CPU: 0 PID: 4591 Comm: syz.4.50 Not tainted syzkaller #0
[ 107.995557][ T4591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 108.001140][ T4587] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 108.005916][ T4591] Call Trace:
[ 108.005929][ T4591]
[ 108.018796][ T4591] dump_stack_lvl+0x188/0x24e
[ 108.023881][ T4591] ? show_regs_print_info+0x12/0x12
[ 108.029103][ T4591] ? load_image+0x400/0x400
[ 108.034064][ T4591] sysfs_create_dir_ns+0x26a/0x290
[ 108.039277][ T4591] ? sysfs_warn_dup+0xa0/0xa0
[ 108.044144][ T4591] ? do_raw_spin_unlock+0x11d/0x230
[ 108.049621][ T4591] kobject_add_internal+0x61c/0xcc0
[ 108.055014][ T4591] kobject_init_and_add+0x128/0x190
[ 108.060317][ T4591] ? lockdep_softirqs_off+0x430/0x430
[ 108.065884][ T4591] ? kobject_add+0x230/0x230
[ 108.070702][ T4591] ? __init_swait_queue_head+0xa5/0x150
[ 108.076538][ T4591] gfs2_sys_fs_add+0x24f/0x4b0
[ 108.081340][ T4591] ? gfs2_recover_set+0x240/0x240
[ 108.086607][ T4591] ? snprintf+0xe5/0x140
[ 108.090985][ T4591] ? vscnprintf+0x80/0x80
[ 108.095535][ T4591] gfs2_fill_super+0x128c/0x1fb0
[ 108.100669][ T4591] ? gfs2_reconfigure+0xd30/0xd30
[ 108.105824][ T4591] ? sb_set_blocksize+0xa5/0xe0
[ 108.110793][ T4591] get_tree_bdev+0x3f1/0x610
[ 108.115930][ T4591] ? gfs2_reconfigure+0xd30/0xd30
[ 108.121230][ T4591] gfs2_get_tree+0x4d/0x1e0
[ 108.125842][ T4591] vfs_get_tree+0x88/0x270
[ 108.130365][ T4591] do_new_mount+0x24a/0xa40
[ 108.135072][ T4591] __se_sys_mount+0x2e3/0x3d0
[ 108.139855][ T4591] ? __x64_sys_mount+0xc0/0xc0
[ 108.145039][ T4591] ? lockdep_hardirqs_on+0x94/0x140
[ 108.150478][ T4591] ? __x64_sys_mount+0x1c/0xc0
[ 108.155629][ T4591] do_syscall_64+0x4c/0xa0
[ 108.160069][ T4591] ? clear_bhb_loop+0x60/0xb0
[ 108.165030][ T4591] ? clear_bhb_loop+0x60/0xb0
[ 108.169906][ T4591] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 108.175987][ T4591] RIP: 0033:0x7f5a7119c14a
[ 108.180497][ T4591] 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
[ 108.200635][ T4591] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 108.209147][ T4591] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 108.217390][ T4591] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 108.225563][ T4591] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 108.233633][ T4591] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 108.241891][ T4591] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 108.249974][ T4591]
[ 108.256547][ T4591] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
2026/02/08 13:34:59 executed programs: 42
[ 108.270222][ T4591] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 108.280983][ T4391] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems!
[ 108.293212][ T4391] batman_adv: batadv0: Interface activated: batadv_slave_1
[ 108.310093][ T4391] netdevsim netdevsim3 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0
[ 108.347004][ T4380] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error
[ 108.347004][ T4380] inode = 11 2339
[ 108.347004][ T4380] function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 464
[ 108.377851][ T4391] netdevsim netdevsim3 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0
[ 108.410907][ T4391] netdevsim netdevsim3 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0
[ 108.450695][ T4391] netdevsim netdevsim3 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0
[ 108.461506][ T4380] gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:qobnN t:EX d:EX/0 a:0 v:0 r:3 m:20 p:1
[ 108.480902][ T4380] gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:4380 [syz-executor] gfs2_quota_sync+0x32c/0x700
[ 108.501552][ T4380] gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
[ 108.531909][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready
[ 108.550694][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready
[ 108.581448][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
[ 108.599506][ T4380] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 108.648853][ T4380] gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount.
[ 108.659019][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready
[ 108.709821][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready
[ 108.720895][ T4380] gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0
[ 108.760906][ T4380] gfs2: fsid=syz:syz.0: File system withdrawn
[ 108.768910][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready
[ 108.803503][ T4380] CPU: 1 PID: 4380 Comm: syz-executor Not tainted syzkaller #0
[ 108.811385][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 108.821752][ T4380] Call Trace:
[ 108.825074][ T4380]
[ 108.828035][ T4380] dump_stack_lvl+0x188/0x24e
[ 108.832840][ T4380] ? kobject_uevent_env+0x35f/0x8a0
[ 108.838155][ T4380] ? show_regs_print_info+0x12/0x12
[ 108.843387][ T4380] ? load_image+0x400/0x400
[ 108.847918][ T4380] ? kobject_uevent_env+0x35f/0x8a0
[ 108.853242][ T4380] gfs2_withdraw+0x1398/0x16c0
[ 108.854041][ T4595] loop4: detected capacity change from 0 to 32768
[ 108.858210][ T4380] ? gfs2_lm+0x240/0x240
[ 108.869604][ T4380] ? gfs2_consist_inode_i+0xf1/0x110
[ 108.875020][ T4380] gfs2_inode_refresh+0xb64/0xfd0
[ 108.880075][ T4380] ? gfs2_inode_metasync+0xf0/0xf0
[ 108.885206][ T4380] ? gfs2_glock_nq+0xcf0/0x14e0
[ 108.890098][ T4380] gfs2_instantiate+0x15e/0x210
[ 108.894993][ T4380] gfs2_glock_wait+0x1d0/0x2a0
[ 108.896082][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready
[ 108.899951][ T4380] do_sync+0x4bf/0xc40
[ 108.911604][ T4380] ? gfs2_quota_sync+0x32c/0x700
[ 108.916605][ T4380] ? slot_put+0x1e0/0x1e0
[ 108.917942][ T4583] loop1: detected capacity change from 0 to 32768
[ 108.921150][ T4380] ? gfs2_quota_sync+0x32c/0x700
[ 108.921185][ T4380] ? do_raw_spin_unlock+0x11d/0x230
[ 108.921210][ T4380] gfs2_quota_sync+0x32c/0x700
[ 108.929239][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready
[ 108.933033][ T4380] gfs2_sync_fs+0x48/0xb0
[ 108.933073][ T4380] sync_filesystem+0xe6/0x220
[ 108.933105][ T4380] generic_shutdown_super+0x6b/0x340
[ 108.933130][ T4380] kill_block_super+0x7c/0xe0
[ 108.951137][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready
[ 108.951718][ T4380] deactivate_locked_super+0x93/0xf0
[ 108.956784][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready
[ 108.960827][ T4380] cleanup_mnt+0x42c/0x4b0
[ 108.960861][ T4380] ? lockdep_hardirqs_on+0x94/0x140
[ 108.960885][ T4380] task_work_run+0x1d0/0x260
[ 108.967022][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready
[ 108.971114][ T4380] ? task_work_cancel+0x220/0x220
[ 108.971150][ T4380] ? exit_to_user_mode_loop+0x3b/0x110
[ 108.971183][ T4380] exit_to_user_mode_loop+0xe6/0x110
[ 108.971211][ T4380] exit_to_user_mode_prepare+0xee/0x180
[ 108.971238][ T4380] syscall_exit_to_user_mode+0x16/0x40
[ 108.971258][ T4380] do_syscall_64+0x58/0xa0
[ 108.971282][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 108.971304][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 108.971327][ T4380] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 108.971349][ T4380] RIP: 0033:0x7f245af9c117
[ 108.971369][ T4380] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 108.971385][ T4380] RSP: 002b:00007ffce7982b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 108.971410][ T4380] RAX: 0000000000000000 RBX: 00007f245b00471f RCX: 00007f245af9c117
[ 108.984779][ T4595] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 108.984886][ T4380] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce7982bd0
[ 109.121140][ T4380] RBP: 00007ffce7982bd0 R08: 00007ffce7983bd0 R09: 00000000ffffffff
[ 109.129217][ T4380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce7983c60
[ 109.137548][ T4380] R13: 00007f245b00471f R14: 000000000001a21f R15: 00007ffce7983ca0
[ 109.146083][ T4380]
[ 109.149206][ T4595] CPU: 0 PID: 4595 Comm: syz.4.52 Not tainted syzkaller #0
[ 109.156977][ T4595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 109.166412][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready
[ 109.167146][ T4595] Call Trace:
[ 109.167155][ T4595]
[ 109.176973][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready
[ 109.177924][ T4595] dump_stack_lvl+0x188/0x24e
[ 109.177970][ T4595] ? show_regs_print_info+0x12/0x12
[ 109.182206][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready
[ 109.189499][ T4595] ? load_image+0x400/0x400
[ 109.189549][ T4595] sysfs_create_dir_ns+0x26a/0x290
[ 109.189579][ T4595] ? sysfs_warn_dup+0xa0/0xa0
[ 109.195284][ T4583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 109.200178][ T4595] ? do_raw_spin_unlock+0x11d/0x230
[ 109.200215][ T4595] kobject_add_internal+0x61c/0xcc0
[ 109.200245][ T4595] kobject_init_and_add+0x128/0x190
[ 109.247286][ T4595] ? lockdep_softirqs_off+0x430/0x430
[ 109.252981][ T4595] ? kobject_add+0x230/0x230
[ 109.258071][ T4595] ? __init_swait_queue_head+0xa5/0x150
[ 109.263678][ T4595] gfs2_sys_fs_add+0x24f/0x4b0
[ 109.268574][ T4595] ? gfs2_recover_set+0x240/0x240
[ 109.274088][ T4595] ? snprintf+0xe5/0x140
[ 109.278553][ T4595] ? vscnprintf+0x80/0x80
[ 109.283023][ T4595] gfs2_fill_super+0x128c/0x1fb0
[ 109.288095][ T4595] ? gfs2_reconfigure+0xd30/0xd30
[ 109.293340][ T4595] ? sb_set_blocksize+0xa5/0xe0
[ 109.298656][ T4595] get_tree_bdev+0x3f1/0x610
[ 109.303478][ T4595] ? gfs2_reconfigure+0xd30/0xd30
[ 109.309019][ T4595] gfs2_get_tree+0x4d/0x1e0
[ 109.313921][ T4595] vfs_get_tree+0x88/0x270
[ 109.318641][ T4595] do_new_mount+0x24a/0xa40
[ 109.323354][ T4595] __se_sys_mount+0x2e3/0x3d0
[ 109.329453][ T4595] ? __x64_sys_mount+0xc0/0xc0
[ 109.334515][ T4595] ? lockdep_hardirqs_on+0x94/0x140
[ 109.339950][ T4595] ? __x64_sys_mount+0x1c/0xc0
[ 109.344858][ T4595] do_syscall_64+0x4c/0xa0
[ 109.349315][ T4595] ? clear_bhb_loop+0x60/0xb0
[ 109.354122][ T4595] ? clear_bhb_loop+0x60/0xb0
[ 109.359284][ T4595] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 109.365686][ T4595] RIP: 0033:0x7f5a7119c14a
[ 109.370407][ T4595] 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
[ 109.390495][ T4595] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 109.399134][ T4595] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 109.407243][ T4595] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 109.415545][ T4595] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 109.423812][ T4595] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 109.432153][ T4595] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 109.440246][ T4595]
[ 109.446779][ T4595] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 109.461968][ T4595] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 109.466505][ T4583] CPU: 1 PID: 4583 Comm: syz.1.47 Not tainted syzkaller #0
[ 109.475903][ T4583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 109.481255][ T4380] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485
[ 109.485980][ T4583] Call Trace:
[ 109.485990][ T4583]
[ 109.506507][ T4583] dump_stack_lvl+0x188/0x24e
[ 109.511232][ T4583] ? show_regs_print_info+0x12/0x12
[ 109.516563][ T4583] ? load_image+0x400/0x400
[ 109.521200][ T4583] sysfs_create_dir_ns+0x26a/0x290
[ 109.526598][ T4583] ? sysfs_warn_dup+0xa0/0xa0
[ 109.531484][ T4583] ? do_raw_spin_unlock+0x11d/0x230
[ 109.537138][ T4583] kobject_add_internal+0x61c/0xcc0
[ 109.542394][ T4583] kobject_init_and_add+0x128/0x190
[ 109.547914][ T4583] ? lockdep_softirqs_off+0x430/0x430
[ 109.554233][ T4583] ? kobject_add+0x230/0x230
[ 109.559751][ T4583] ? __init_swait_queue_head+0xa5/0x150
[ 109.565519][ T4583] gfs2_sys_fs_add+0x24f/0x4b0
[ 109.570446][ T4583] ? gfs2_recover_set+0x240/0x240
[ 109.576119][ T4583] ? snprintf+0xe5/0x140
[ 109.580770][ T4583] ? vscnprintf+0x80/0x80
[ 109.585156][ T4583] gfs2_fill_super+0x128c/0x1fb0
[ 109.590158][ T4583] ? gfs2_reconfigure+0xd30/0xd30
[ 109.595308][ T4583] ? sb_set_blocksize+0xa5/0xe0
[ 109.600184][ T4583] get_tree_bdev+0x3f1/0x610
[ 109.604893][ T4583] ? gfs2_reconfigure+0xd30/0xd30
[ 109.609972][ T4583] gfs2_get_tree+0x4d/0x1e0
[ 109.614614][ T4583] vfs_get_tree+0x88/0x270
[ 109.619057][ T4583] do_new_mount+0x24a/0xa40
[ 109.623631][ T4583] __se_sys_mount+0x2e3/0x3d0
[ 109.628410][ T4583] ? __x64_sys_mount+0xc0/0xc0
[ 109.633484][ T4583] ? lockdep_hardirqs_on+0x94/0x140
[ 109.638952][ T4583] ? __x64_sys_mount+0x1c/0xc0
[ 109.643837][ T4583] do_syscall_64+0x4c/0xa0
[ 109.648403][ T4583] ? clear_bhb_loop+0x60/0xb0
[ 109.653250][ T4583] ? clear_bhb_loop+0x60/0xb0
[ 109.658039][ T4583] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 109.664162][ T4583] RIP: 0033:0x7f063579c14a
[ 109.668672][ T4583] 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
[ 109.689248][ T4583] RSP: 002b:00007f0636590e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 109.697675][ T4583] RAX: ffffffffffffffda RBX: 00007f0636590ee0 RCX: 00007f063579c14a
[ 109.705666][ T4583] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f0636590ea0
[ 109.713830][ T4583] RBP: 00002000000124c0 R08: 00007f0636590ee0 R09: 0000000000000000
[ 109.721984][ T4583] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 109.730219][ T4583] R13: 00007f0636590ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 109.738298][ T4583]
[ 109.760911][ T4380] CPU: 0 PID: 4380 Comm: syz-executor Not tainted syzkaller #0
[ 109.768617][ T4380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 109.779588][ T4380] Call Trace:
[ 109.782900][ T4380]
[ 109.785865][ T4380] dump_stack_lvl+0x188/0x24e
[ 109.790685][ T4380] ? gfs2_assert_warn_i+0xc3/0x2c0
[ 109.796203][ T4380] ? show_regs_print_info+0x12/0x12
[ 109.800302][ T4583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 109.801695][ T4380] ? load_image+0x400/0x400
[ 109.801731][ T4380] ? do_raw_spin_unlock+0x11d/0x230
[ 109.801755][ T4380] gfs2_assert_warn_i+0x18f/0x2c0
[ 109.801782][ T4380] gfs2_quota_cleanup+0x4b4/0x6a0
[ 109.815612][ T4583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 109.820172][ T4380] gfs2_put_super+0x22f/0x8c0
[ 109.847911][ T4380] ? gfs2_evict_inode+0x11d0/0x11d0
[ 109.853166][ T4380] generic_shutdown_super+0x130/0x340
[ 109.858692][ T4380] kill_block_super+0x7c/0xe0
[ 109.863590][ T4380] deactivate_locked_super+0x93/0xf0
[ 109.868932][ T4380] cleanup_mnt+0x42c/0x4b0
[ 109.873671][ T4380] ? lockdep_hardirqs_on+0x94/0x140
[ 109.878912][ T4380] task_work_run+0x1d0/0x260
[ 109.883550][ T4380] ? task_work_cancel+0x220/0x220
[ 109.888630][ T4380] ? exit_to_user_mode_loop+0x3b/0x110
[ 109.894163][ T4380] exit_to_user_mode_loop+0xe6/0x110
[ 109.899774][ T4380] exit_to_user_mode_prepare+0xee/0x180
[ 109.905748][ T4380] syscall_exit_to_user_mode+0x16/0x40
[ 109.911338][ T4380] do_syscall_64+0x58/0xa0
[ 109.916107][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 109.920927][ T4380] ? clear_bhb_loop+0x60/0xb0
[ 109.925749][ T4380] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 109.932326][ T4380] RIP: 0033:0x7f245af9c117
[ 109.936780][ T4380] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 109.956774][ T4380] RSP: 002b:00007ffce7982b18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 109.965403][ T4380] RAX: 0000000000000000 RBX: 00007f245b00471f RCX: 00007f245af9c117
[ 109.973499][ T4380] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffce7982bd0
[ 109.981494][ T4380] RBP: 00007ffce7982bd0 R08: 00007ffce7983bd0 R09: 00000000ffffffff
[ 109.989909][ T4380] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffce7983c60
[ 109.998066][ T4380] R13: 00007f245b00471f R14: 000000000001a21f R15: 00007ffce7983ca0
[ 110.006160][ T4380]
[ 110.406102][ T4600] loop4: detected capacity change from 0 to 32768
[ 110.420695][ T4600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 110.420695][ T4599] loop1: detected capacity change from 0 to 32768
[ 110.420714][ T4600] CPU: 0 PID: 4600 Comm: syz.4.53 Not tainted syzkaller #0
[ 110.443492][ T4600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 110.453737][ T4600] Call Trace:
[ 110.457128][ T4600]
[ 110.460158][ T4600] dump_stack_lvl+0x188/0x24e
[ 110.464974][ T4600] ? show_regs_print_info+0x12/0x12
[ 110.470217][ T4600] ? load_image+0x400/0x400
[ 110.474834][ T4600] sysfs_create_dir_ns+0x26a/0x290
[ 110.480143][ T4600] ? sysfs_warn_dup+0xa0/0xa0
[ 110.484922][ T4600] ? do_raw_spin_unlock+0x11d/0x230
[ 110.490223][ T4600] kobject_add_internal+0x61c/0xcc0
[ 110.495525][ T4600] kobject_init_and_add+0x128/0x190
[ 110.500964][ T4600] ? lockdep_softirqs_off+0x430/0x430
[ 110.506555][ T4600] ? kobject_add+0x230/0x230
[ 110.511176][ T4600] ? __init_swait_queue_head+0xa5/0x150
[ 110.516915][ T4600] gfs2_sys_fs_add+0x24f/0x4b0
[ 110.522137][ T4600] ? gfs2_recover_set+0x240/0x240
[ 110.527180][ T4600] ? snprintf+0xe5/0x140
[ 110.531618][ T4600] ? vscnprintf+0x80/0x80
[ 110.536324][ T4600] gfs2_fill_super+0x128c/0x1fb0
[ 110.541545][ T4600] ? gfs2_reconfigure+0xd30/0xd30
[ 110.546687][ T4600] ? sb_set_blocksize+0xa5/0xe0
[ 110.551814][ T4600] get_tree_bdev+0x3f1/0x610
[ 110.556601][ T4600] ? gfs2_reconfigure+0xd30/0xd30
[ 110.562606][ T4600] gfs2_get_tree+0x4d/0x1e0
[ 110.568020][ T4600] vfs_get_tree+0x88/0x270
[ 110.572539][ T4600] do_new_mount+0x24a/0xa40
[ 110.577403][ T4600] __se_sys_mount+0x2e3/0x3d0
[ 110.582183][ T4600] ? __x64_sys_mount+0xc0/0xc0
[ 110.587137][ T4600] ? lockdep_hardirqs_on+0x94/0x140
[ 110.592518][ T4600] ? __x64_sys_mount+0x1c/0xc0
[ 110.597327][ T4600] do_syscall_64+0x4c/0xa0
[ 110.602035][ T4600] ? clear_bhb_loop+0x60/0xb0
[ 110.607285][ T4600] ? clear_bhb_loop+0x60/0xb0
[ 110.612071][ T4600] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 110.618661][ T4600] RIP: 0033:0x7f5a7119c14a
[ 110.623276][ T4600] 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
[ 110.643689][ T4600] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 110.652298][ T4600] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 110.660637][ T4600] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 110.668703][ T4600] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 110.677387][ T4600] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 110.685925][ T4600] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 110.694112][ T4600]
[ 110.700931][ T4600] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 110.710408][ T4599] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 110.714664][ T4600] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 110.723817][ T4599] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 110.804378][ T4599] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 110.816719][ T4332] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 110.899062][ T4332] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 111.294909][ T4603] loop4: detected capacity change from 0 to 32768
[ 111.414062][ T4603] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 111.422367][ T4603] CPU: 1 PID: 4603 Comm: syz.4.55 Not tainted syzkaller #0
[ 111.430030][ T4603] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 111.440212][ T4603] Call Trace:
[ 111.443518][ T4603]
[ 111.446467][ T4603] dump_stack_lvl+0x188/0x24e
[ 111.451370][ T4603] ? show_regs_print_info+0x12/0x12
[ 111.456985][ T4603] ? load_image+0x400/0x400
[ 111.461722][ T4603] sysfs_create_dir_ns+0x26a/0x290
[ 111.467147][ T4603] ? sysfs_warn_dup+0xa0/0xa0
[ 111.472048][ T4603] ? do_raw_spin_unlock+0x11d/0x230
[ 111.477647][ T4603] kobject_add_internal+0x61c/0xcc0
[ 111.482896][ T4603] kobject_init_and_add+0x128/0x190
[ 111.488320][ T4603] ? lockdep_softirqs_off+0x430/0x430
[ 111.493743][ T4603] ? kobject_add+0x230/0x230
[ 111.498613][ T4603] ? __init_swait_queue_head+0xa5/0x150
[ 111.504220][ T4603] gfs2_sys_fs_add+0x24f/0x4b0
[ 111.509211][ T4603] ? gfs2_recover_set+0x240/0x240
[ 111.514466][ T4603] ? snprintf+0xe5/0x140
[ 111.518756][ T4603] ? vscnprintf+0x80/0x80
[ 111.523169][ T4603] gfs2_fill_super+0x128c/0x1fb0
[ 111.528687][ T4603] ? gfs2_reconfigure+0xd30/0xd30
[ 111.533996][ T4603] ? sb_set_blocksize+0xa5/0xe0
[ 111.538980][ T4603] get_tree_bdev+0x3f1/0x610
[ 111.543626][ T4603] ? gfs2_reconfigure+0xd30/0xd30
[ 111.548784][ T4603] gfs2_get_tree+0x4d/0x1e0
[ 111.554368][ T4603] vfs_get_tree+0x88/0x270
[ 111.558916][ T4603] do_new_mount+0x24a/0xa40
[ 111.563613][ T4603] __se_sys_mount+0x2e3/0x3d0
[ 111.568514][ T4603] ? __x64_sys_mount+0xc0/0xc0
[ 111.573330][ T4603] ? lockdep_hardirqs_on+0x94/0x140
[ 111.579112][ T4603] ? __x64_sys_mount+0x1c/0xc0
[ 111.584009][ T4603] do_syscall_64+0x4c/0xa0
[ 111.588477][ T4603] ? clear_bhb_loop+0x60/0xb0
[ 111.593191][ T4603] ? clear_bhb_loop+0x60/0xb0
[ 111.597995][ T4603] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 111.604093][ T4603] RIP: 0033:0x7f5a7119c14a
[ 111.608802][ T4603] 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
[ 111.625805][ T4607] loop0: detected capacity change from 0 to 32768
[ 111.629313][ T4603] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 111.644669][ T4603] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 111.653477][ T4603] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 111.661563][ T4603] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 111.669555][ T4603] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 111.677821][ T4603] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 111.686094][ T4603]
[ 111.690390][ T4603] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 111.704044][ T4603] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 111.719296][ T4332] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 820ms
[ 111.727781][ T4332] gfs2: fsid=syz:syz.0: jid=0: Done
[ 111.733854][ T4599] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 111.737889][ T4607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 111.749223][ T4607] CPU: 0 PID: 4607 Comm: syz.0.51 Not tainted syzkaller #0
[ 111.756678][ T4607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 111.767216][ T4607] Call Trace:
[ 111.770533][ T4607]
[ 111.773692][ T4607] dump_stack_lvl+0x188/0x24e
[ 111.778735][ T4607] ? show_regs_print_info+0x12/0x12
[ 111.784130][ T4607] ? load_image+0x400/0x400
[ 111.788812][ T4607] sysfs_create_dir_ns+0x26a/0x290
[ 111.793974][ T4607] ? sysfs_warn_dup+0xa0/0xa0
[ 111.799048][ T4607] ? do_raw_spin_unlock+0x11d/0x230
[ 111.804651][ T4607] kobject_add_internal+0x61c/0xcc0
[ 111.810135][ T4607] kobject_init_and_add+0x128/0x190
[ 111.815469][ T4607] ? lockdep_softirqs_off+0x430/0x430
[ 111.821241][ T4607] ? kobject_add+0x230/0x230
[ 111.826329][ T4607] ? __init_swait_queue_head+0xa5/0x150
[ 111.832106][ T4607] gfs2_sys_fs_add+0x24f/0x4b0
[ 111.836930][ T4607] ? gfs2_recover_set+0x240/0x240
[ 111.842098][ T4607] ? snprintf+0xe5/0x140
[ 111.846379][ T4607] ? vscnprintf+0x80/0x80
[ 111.850783][ T4607] gfs2_fill_super+0x128c/0x1fb0
[ 111.856038][ T4607] ? gfs2_reconfigure+0xd30/0xd30
[ 111.861222][ T4607] ? sb_set_blocksize+0xa5/0xe0
[ 111.866226][ T4607] get_tree_bdev+0x3f1/0x610
[ 111.870870][ T4607] ? gfs2_reconfigure+0xd30/0xd30
[ 111.875943][ T4607] gfs2_get_tree+0x4d/0x1e0
[ 111.880692][ T4607] vfs_get_tree+0x88/0x270
[ 111.885316][ T4607] do_new_mount+0x24a/0xa40
[ 111.889932][ T4607] __se_sys_mount+0x2e3/0x3d0
[ 111.894726][ T4607] ? __x64_sys_mount+0xc0/0xc0
[ 111.899767][ T4607] ? lockdep_hardirqs_on+0x94/0x140
[ 111.905163][ T4607] ? __x64_sys_mount+0x1c/0xc0
[ 111.910292][ T4607] do_syscall_64+0x4c/0xa0
[ 111.915073][ T4607] ? clear_bhb_loop+0x60/0xb0
[ 111.920242][ T4607] ? clear_bhb_loop+0x60/0xb0
[ 111.925302][ T4607] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 111.931481][ T4607] RIP: 0033:0x7f245af9c14a
[ 111.936171][ T4607] 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
[ 111.956328][ T4607] RSP: 002b:00007f245be52e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 111.964847][ T4607] RAX: ffffffffffffffda RBX: 00007f245be52ee0 RCX: 00007f245af9c14a
[ 111.972854][ T4607] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f245be52ea0
[ 111.981110][ T4607] RBP: 00002000000124c0 R08: 00007f245be52ee0 R09: 0000000000000000
[ 111.989543][ T4607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 111.997701][ T4607] R13: 00007f245be52ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 112.005797][ T4607]
[ 112.008998][ T4607] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 112.022710][ T4607] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 112.081258][ T46] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 112.101331][ T46] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 112.156579][ T46] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 112.691352][ T11] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 112.699540][ T9] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 112.711936][ T11] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 112.719919][ T4516] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 113.195365][ T9] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 113.214262][ T4599] gfs2: fsid=syz:syz.0: found 1 quota changes
[ 113.277053][ T4382] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error
[ 113.277053][ T4382] inode = 11 2339
[ 113.277053][ T4382] function = gfs2_dinode_in, file = fs/gfs2/glops.c, line = 464
[ 113.277427][ T4516] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 113.352104][ T4382] gfs2: fsid=syz:syz.0: G: s:EX n:2/923 f:qobnN t:EX d:EX/0 a:0 v:0 r:3 m:20 p:1
[ 113.759382][ T4382] gfs2: fsid=syz:syz.0: H: s:EX f:H e:0 p:4382 [syz-executor] gfs2_quota_sync+0x32c/0x700
2026/02/08 13:35:05 executed programs: 54
[ 113.822348][ T4382] gfs2: fsid=syz:syz.0: I: n:11/2339 t:0 f:0x00 d:0x00000000 s:0 p:0
[ 113.939161][ T4382] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 113.981367][ T4516] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[ 114.054462][ T4516] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[ 114.084095][ T4382] gfs2: fsid=syz:syz.0: Journal recovery skipped for jid 0 until next mount.
[ 114.162238][ T11] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[ 114.237710][ T4382] gfs2: fsid=syz:syz.0: Glock dequeues delayed: 0
[ 114.346843][ T4382] gfs2: fsid=syz:syz.0: File system withdrawn
[ 114.366965][ T4382] CPU: 0 PID: 4382 Comm: syz-executor Not tainted syzkaller #0
[ 114.374844][ T4382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 114.385367][ T4382] Call Trace:
[ 114.388851][ T4382]
[ 114.392176][ T4382] dump_stack_lvl+0x188/0x24e
[ 114.396994][ T4382] ? kobject_uevent_env+0x35f/0x8a0
[ 114.403553][ T4382] ? show_regs_print_info+0x12/0x12
[ 114.409251][ T4382] ? load_image+0x400/0x400
[ 114.413799][ T4382] ? kobject_uevent_env+0x35f/0x8a0
[ 114.419231][ T4382] gfs2_withdraw+0x1398/0x16c0
[ 114.424067][ T4382] ? gfs2_lm+0x240/0x240
[ 114.428719][ T4382] ? gfs2_consist_inode_i+0xf1/0x110
[ 114.434240][ T4382] gfs2_inode_refresh+0xb64/0xfd0
[ 114.439456][ T4382] ? gfs2_inode_metasync+0xf0/0xf0
[ 114.444819][ T4382] ? gfs2_glock_nq+0xcf0/0x14e0
[ 114.449721][ T4382] gfs2_instantiate+0x15e/0x210
[ 114.454626][ T4382] gfs2_glock_wait+0x1d0/0x2a0
[ 114.459434][ T4382] do_sync+0x4bf/0xc40
[ 114.463700][ T4382] ? gfs2_quota_sync+0x32c/0x700
[ 114.469044][ T4382] ? slot_put+0x1e0/0x1e0
[ 114.473531][ T4382] ? gfs2_quota_sync+0x32c/0x700
[ 114.478782][ T4382] ? do_raw_spin_unlock+0x11d/0x230
[ 114.484113][ T4382] gfs2_quota_sync+0x32c/0x700
[ 114.489109][ T4382] gfs2_sync_fs+0x48/0xb0
[ 114.493495][ T4382] sync_filesystem+0xe6/0x220
[ 114.498220][ T4382] generic_shutdown_super+0x6b/0x340
[ 114.503642][ T4382] kill_block_super+0x7c/0xe0
[ 114.508446][ T4382] deactivate_locked_super+0x93/0xf0
[ 114.513901][ T4382] cleanup_mnt+0x42c/0x4b0
[ 114.518446][ T4382] ? lockdep_hardirqs_on+0x94/0x140
[ 114.523780][ T4382] task_work_run+0x1d0/0x260
[ 114.528590][ T4382] ? task_work_cancel+0x220/0x220
[ 114.533841][ T4382] ? exit_to_user_mode_loop+0x3b/0x110
[ 114.539430][ T4382] exit_to_user_mode_loop+0xe6/0x110
[ 114.545107][ T4382] exit_to_user_mode_prepare+0xee/0x180
[ 114.551045][ T4382] syscall_exit_to_user_mode+0x16/0x40
[ 114.556717][ T4382] do_syscall_64+0x58/0xa0
[ 114.561276][ T4382] ? clear_bhb_loop+0x60/0xb0
[ 114.563960][ T4632] loop2: detected capacity change from 0 to 32768
[ 114.565968][ T4382] ? clear_bhb_loop+0x60/0xb0
[ 114.577984][ T4382] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 114.583924][ T4382] RIP: 0033:0x7f063579c117
[ 114.588387][ T4382] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 114.598969][ T4632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 114.608808][ T4382] RSP: 002b:00007ffe2662dd18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 114.608839][ T4382] RAX: 0000000000000000 RBX: 00007f063580471f RCX: 00007f063579c117
[ 114.608854][ T4382] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2662ddd0
[ 114.608867][ T4382] RBP: 00007ffe2662ddd0 R08: 00007ffe2662edd0 R09: 00000000ffffffff
[ 114.608881][ T4382] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2662ee60
[ 114.608893][ T4382] R13: 00007f063580471f R14: 000000000001aefe R15: 00007ffe2662eea0
[ 114.608924][ T4382]
[ 114.675138][ T4632] CPU: 1 PID: 4632 Comm: syz.2.19 Not tainted syzkaller #0
[ 114.682387][ T4632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 114.692650][ T4632] Call Trace:
[ 114.695955][ T4632]
[ 114.699006][ T4632] dump_stack_lvl+0x188/0x24e
[ 114.704463][ T4632] ? show_regs_print_info+0x12/0x12
[ 114.709887][ T4632] ? load_image+0x400/0x400
[ 114.714764][ T4632] sysfs_create_dir_ns+0x26a/0x290
[ 114.719917][ T4632] ? sysfs_warn_dup+0xa0/0xa0
[ 114.724726][ T4632] ? do_raw_spin_unlock+0x11d/0x230
[ 114.730553][ T4632] kobject_add_internal+0x61c/0xcc0
[ 114.736004][ T4632] kobject_init_and_add+0x128/0x190
[ 114.741256][ T4632] ? lockdep_softirqs_off+0x430/0x430
[ 114.746668][ T4632] ? kobject_add+0x230/0x230
[ 114.751479][ T4632] ? __init_swait_queue_head+0xa5/0x150
[ 114.757326][ T4632] gfs2_sys_fs_add+0x24f/0x4b0
[ 114.762131][ T4632] ? gfs2_recover_set+0x240/0x240
[ 114.767189][ T4632] ? snprintf+0xe5/0x140
[ 114.771582][ T4632] ? vscnprintf+0x80/0x80
[ 114.776049][ T4632] gfs2_fill_super+0x128c/0x1fb0
[ 114.781294][ T4632] ? gfs2_reconfigure+0xd30/0xd30
[ 114.786379][ T4632] ? sb_set_blocksize+0xa5/0xe0
[ 114.791495][ T4632] get_tree_bdev+0x3f1/0x610
[ 114.796472][ T4632] ? gfs2_reconfigure+0xd30/0xd30
[ 114.801774][ T4632] gfs2_get_tree+0x4d/0x1e0
[ 114.806508][ T4632] vfs_get_tree+0x88/0x270
[ 114.811169][ T4632] do_new_mount+0x24a/0xa40
[ 114.815860][ T4632] __se_sys_mount+0x2e3/0x3d0
[ 114.820716][ T4632] ? __x64_sys_mount+0xc0/0xc0
[ 114.825718][ T4632] ? lockdep_hardirqs_on+0x94/0x140
[ 114.831131][ T4632] ? __x64_sys_mount+0x1c/0xc0
[ 114.836125][ T4632] do_syscall_64+0x4c/0xa0
[ 114.840674][ T4632] ? clear_bhb_loop+0x60/0xb0
[ 114.845491][ T4632] ? clear_bhb_loop+0x60/0xb0
[ 114.850211][ T4632] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 114.856235][ T4632] RIP: 0033:0x7f91e219c14a
[ 114.860723][ T4632] 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
[ 114.881177][ T4632] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 114.889746][ T4632] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 114.898124][ T4632] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 114.906141][ T4632] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 114.914159][ T4632] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 114.922258][ T4632] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 114.930566][ T4632]
[ 114.933671][ T4632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 114.947287][ T4632] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 114.971417][ T4382] gfs2: fsid=syz:syz.0: warning: assertion "!qd->qd_change" failed at function = gfs2_quota_cleanup, file = fs/gfs2/quota.c, line = 1485
[ 115.169577][ T4611] I/O error, dev loop2, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 115.606874][ T4638] loop3: detected capacity change from 0 to 32768
[ 115.623290][ T4382] CPU: 1 PID: 4382 Comm: syz-executor Not tainted syzkaller #0
[ 115.631432][ T4382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 115.642667][ T4382] Call Trace:
[ 115.646083][ T4382]
[ 115.649486][ T4382] dump_stack_lvl+0x188/0x24e
[ 115.654571][ T4382] ? gfs2_assert_warn_i+0xc3/0x2c0
[ 115.660016][ T4382] ? show_regs_print_info+0x12/0x12
[ 115.665519][ T4382] ? load_image+0x400/0x400
[ 115.670266][ T4382] ? do_raw_spin_unlock+0x11d/0x230
[ 115.675483][ T4382] gfs2_assert_warn_i+0x18f/0x2c0
[ 115.680787][ T4382] gfs2_quota_cleanup+0x4b4/0x6a0
[ 115.686059][ T4382] gfs2_put_super+0x22f/0x8c0
[ 115.691225][ T4382] ? gfs2_evict_inode+0x11d0/0x11d0
[ 115.696709][ T4382] generic_shutdown_super+0x130/0x340
[ 115.702103][ T4382] kill_block_super+0x7c/0xe0
[ 115.707176][ T4382] deactivate_locked_super+0x93/0xf0
[ 115.712948][ T4382] cleanup_mnt+0x42c/0x4b0
[ 115.717859][ T4382] ? lockdep_hardirqs_on+0x94/0x140
[ 115.723259][ T4382] task_work_run+0x1d0/0x260
[ 115.727968][ T4382] ? task_work_cancel+0x220/0x220
[ 115.733106][ T4382] ? exit_to_user_mode_loop+0x3b/0x110
[ 115.738944][ T4382] exit_to_user_mode_loop+0xe6/0x110
[ 115.744436][ T4382] exit_to_user_mode_prepare+0xee/0x180
[ 115.750106][ T4382] syscall_exit_to_user_mode+0x16/0x40
[ 115.756387][ T4382] do_syscall_64+0x58/0xa0
[ 115.760936][ T4382] ? clear_bhb_loop+0x60/0xb0
[ 115.765800][ T4382] ? clear_bhb_loop+0x60/0xb0
[ 115.770592][ T4382] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 115.776589][ T4382] RIP: 0033:0x7f063579c117
[ 115.781194][ T4382] Code: a2 c7 05 7c c4 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
[ 115.801562][ T4382] RSP: 002b:00007ffe2662dd18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
[ 115.810435][ T4382] RAX: 0000000000000000 RBX: 00007f063580471f RCX: 00007f063579c117
[ 115.818691][ T4382] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe2662ddd0
[ 115.826888][ T4382] RBP: 00007ffe2662ddd0 R08: 00007ffe2662edd0 R09: 00000000ffffffff
[ 115.835022][ T4382] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe2662ee60
[ 115.843185][ T4382] R13: 00007f063580471f R14: 000000000001aefe R15: 00007ffe2662eea0
[ 115.851529][ T4382]
[ 115.861984][ T4638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 115.869865][ T4638] CPU: 1 PID: 4638 Comm: syz.3.20 Not tainted syzkaller #0
[ 115.877110][ T4638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 115.887915][ T4638] Call Trace:
[ 115.891579][ T4638]
[ 115.894638][ T4638] dump_stack_lvl+0x188/0x24e
[ 115.899737][ T4638] ? show_regs_print_info+0x12/0x12
[ 115.905076][ T4638] ? load_image+0x400/0x400
[ 115.909723][ T4638] sysfs_create_dir_ns+0x26a/0x290
[ 115.914888][ T4638] ? sysfs_warn_dup+0xa0/0xa0
[ 115.919884][ T4638] ? do_raw_spin_unlock+0x11d/0x230
[ 115.925215][ T4638] kobject_add_internal+0x61c/0xcc0
[ 115.930737][ T4638] kobject_init_and_add+0x128/0x190
[ 115.936101][ T4638] ? lockdep_softirqs_off+0x430/0x430
[ 115.941632][ T4638] ? kobject_add+0x230/0x230
[ 115.946906][ T4638] ? __init_swait_queue_head+0xa5/0x150
[ 115.952770][ T4638] gfs2_sys_fs_add+0x24f/0x4b0
[ 115.957849][ T4638] ? gfs2_recover_set+0x240/0x240
[ 115.962930][ T4638] ? snprintf+0xe5/0x140
[ 115.967398][ T4638] ? vscnprintf+0x80/0x80
[ 115.972132][ T4638] gfs2_fill_super+0x128c/0x1fb0
[ 115.977920][ T4638] ? gfs2_reconfigure+0xd30/0xd30
[ 115.983005][ T4638] ? sb_set_blocksize+0xa5/0xe0
[ 115.987914][ T4638] get_tree_bdev+0x3f1/0x610
[ 115.992551][ T4638] ? gfs2_reconfigure+0xd30/0xd30
[ 115.997665][ T4638] gfs2_get_tree+0x4d/0x1e0
[ 116.002231][ T4638] vfs_get_tree+0x88/0x270
[ 116.006779][ T4638] do_new_mount+0x24a/0xa40
[ 116.011508][ T4638] __se_sys_mount+0x2e3/0x3d0
[ 116.016339][ T4638] ? __x64_sys_mount+0xc0/0xc0
[ 116.021416][ T4638] ? lockdep_hardirqs_on+0x94/0x140
[ 116.027084][ T4638] ? __x64_sys_mount+0x1c/0xc0
[ 116.032327][ T4638] do_syscall_64+0x4c/0xa0
[ 116.036831][ T4638] ? clear_bhb_loop+0x60/0xb0
[ 116.041547][ T4638] ? clear_bhb_loop+0x60/0xb0
[ 116.046877][ T4638] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 116.052990][ T4638] RIP: 0033:0x7fac18b9c14a
[ 116.057707][ T4638] 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
[ 116.077619][ T4638] RSP: 002b:00007fac199d6e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 116.087010][ T4638] RAX: ffffffffffffffda RBX: 00007fac199d6ee0 RCX: 00007fac18b9c14a
[ 116.095676][ T4638] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fac199d6ea0
[ 116.104743][ T4638] RBP: 00002000000124c0 R08: 00007fac199d6ee0 R09: 0000000000000000
[ 116.113535][ T4638] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 116.122069][ T4638] R13: 00007fac199d6ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 116.130720][ T4638]
[ 116.134284][ T4638] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 116.148262][ T4638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 116.320337][ T4641] loop2: detected capacity change from 0 to 32768
[ 116.344006][ T4641] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 116.352330][ T4641] CPU: 0 PID: 4641 Comm: syz.2.67 Not tainted syzkaller #0
[ 116.360363][ T4641] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 116.370722][ T4641] Call Trace:
[ 116.374211][ T4641]
[ 116.377261][ T4641] dump_stack_lvl+0x188/0x24e
[ 116.382713][ T4641] ? show_regs_print_info+0x12/0x12
[ 116.388501][ T4641] ? load_image+0x400/0x400
[ 116.393154][ T4641] sysfs_create_dir_ns+0x26a/0x290
[ 116.398502][ T4641] ? sysfs_warn_dup+0xa0/0xa0
[ 116.403416][ T4641] ? do_raw_spin_unlock+0x11d/0x230
[ 116.408843][ T4641] kobject_add_internal+0x61c/0xcc0
[ 116.414178][ T4641] kobject_init_and_add+0x128/0x190
[ 116.420504][ T4641] ? lockdep_softirqs_off+0x430/0x430
[ 116.426363][ T4641] ? kobject_add+0x230/0x230
[ 116.431007][ T4641] ? __init_swait_queue_head+0xa5/0x150
[ 116.436867][ T4641] gfs2_sys_fs_add+0x24f/0x4b0
[ 116.442116][ T4641] ? gfs2_recover_set+0x240/0x240
[ 116.447894][ T4641] ? snprintf+0xe5/0x140
[ 116.452898][ T4641] ? vscnprintf+0x80/0x80
[ 116.457370][ T4641] gfs2_fill_super+0x128c/0x1fb0
[ 116.462724][ T4641] ? gfs2_reconfigure+0xd30/0xd30
[ 116.468066][ T4641] ? sb_set_blocksize+0xa5/0xe0
[ 116.473316][ T4641] get_tree_bdev+0x3f1/0x610
[ 116.478315][ T4641] ? gfs2_reconfigure+0xd30/0xd30
[ 116.483569][ T4641] gfs2_get_tree+0x4d/0x1e0
[ 116.488375][ T4641] vfs_get_tree+0x88/0x270
[ 116.492827][ T4641] do_new_mount+0x24a/0xa40
[ 116.497631][ T4641] __se_sys_mount+0x2e3/0x3d0
[ 116.502543][ T4641] ? __x64_sys_mount+0xc0/0xc0
[ 116.507520][ T4641] ? lockdep_hardirqs_on+0x94/0x140
[ 116.513015][ T4641] ? __x64_sys_mount+0x1c/0xc0
[ 116.513619][ T4642] loop4: detected capacity change from 0 to 32768
[ 116.517886][ T4641] do_syscall_64+0x4c/0xa0
[ 116.529114][ T4641] ? clear_bhb_loop+0x60/0xb0
[ 116.534021][ T4641] ? clear_bhb_loop+0x60/0xb0
[ 116.539193][ T4641] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 116.540256][ T4642] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 116.545629][ T4641] RIP: 0033:0x7f91e219c14a
[ 116.545653][ T4641] 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
[ 116.545670][ T4641] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 116.545694][ T4641] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 116.545709][ T4641] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 116.545724][ T4641] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 116.545738][ T4641] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 116.545759][ T4641] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 116.545791][ T4641]
[ 116.549159][ T4641] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 116.554566][ T4642] CPU: 1 PID: 4642 Comm: syz.4.68 Not tainted syzkaller #0
[ 116.558929][ T4641] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 116.579670][ T4642] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 116.579685][ T4642] Call Trace:
[ 116.579694][ T4642]
[ 116.579702][ T4642] dump_stack_lvl+0x188/0x24e
[ 116.579736][ T4642] ? show_regs_print_info+0x12/0x12
[ 116.579761][ T4642] ? load_image+0x400/0x400
[ 116.579794][ T4642] sysfs_create_dir_ns+0x26a/0x290
[ 116.697819][ T4642] ? sysfs_warn_dup+0xa0/0xa0
[ 116.702644][ T4642] ? do_raw_spin_unlock+0x11d/0x230
[ 116.707889][ T4642] kobject_add_internal+0x61c/0xcc0
[ 116.713313][ T4642] kobject_init_and_add+0x128/0x190
[ 116.718750][ T4642] ? lockdep_softirqs_off+0x430/0x430
[ 116.724266][ T4642] ? kobject_add+0x230/0x230
[ 116.729095][ T4642] ? __init_swait_queue_head+0xa5/0x150
[ 116.734959][ T4642] gfs2_sys_fs_add+0x24f/0x4b0
[ 116.739953][ T4642] ? gfs2_recover_set+0x240/0x240
[ 116.745128][ T4642] ? snprintf+0xe5/0x140
[ 116.749618][ T4642] ? vscnprintf+0x80/0x80
[ 116.754101][ T4642] gfs2_fill_super+0x128c/0x1fb0
[ 116.759110][ T4642] ? gfs2_reconfigure+0xd30/0xd30
[ 116.764187][ T4642] ? sb_set_blocksize+0xa5/0xe0
[ 116.769174][ T4642] get_tree_bdev+0x3f1/0x610
[ 116.773898][ T4642] ? gfs2_reconfigure+0xd30/0xd30
[ 116.779329][ T4642] gfs2_get_tree+0x4d/0x1e0
[ 116.784416][ T4642] vfs_get_tree+0x88/0x270
[ 116.789227][ T4642] do_new_mount+0x24a/0xa40
[ 116.793865][ T4642] __se_sys_mount+0x2e3/0x3d0
[ 116.798847][ T4642] ? __x64_sys_mount+0xc0/0xc0
[ 116.803766][ T4642] ? lockdep_hardirqs_on+0x94/0x140
[ 116.809183][ T4642] ? __x64_sys_mount+0x1c/0xc0
[ 116.813992][ T4642] do_syscall_64+0x4c/0xa0
[ 116.818623][ T4642] ? clear_bhb_loop+0x60/0xb0
[ 116.823436][ T4642] ? clear_bhb_loop+0x60/0xb0
[ 116.828408][ T4642] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 116.834862][ T4642] RIP: 0033:0x7f5a7119c14a
[ 116.839318][ T4642] 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
[ 116.859867][ T4642] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 116.868673][ T4642] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 116.877029][ T4642] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 116.885112][ T4642] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 116.893195][ T4642] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 116.901198][ T4642] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 116.909324][ T4642]
[ 116.912449][ C1] sched: RT throttling activated
[ 116.912528][ T4642] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 116.931396][ T4642] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 117.691462][ T4648] loop2: detected capacity change from 0 to 32768
[ 118.052220][ T4652] loop4: detected capacity change from 0 to 32768
[ 118.061021][ T4648] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 118.068727][ T4648] CPU: 0 PID: 4648 Comm: syz.2.71 Not tainted syzkaller #0
[ 118.076143][ T4648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 118.086598][ T4648] Call Trace:
[ 118.090093][ T4648]
[ 118.093233][ T4648] dump_stack_lvl+0x188/0x24e
[ 118.098050][ T4648] ? show_regs_print_info+0x12/0x12
[ 118.103670][ T4648] ? load_image+0x400/0x400
[ 118.108573][ T4648] sysfs_create_dir_ns+0x26a/0x290
[ 118.113811][ T4648] ? sysfs_warn_dup+0xa0/0xa0
[ 118.118613][ T4648] ? do_raw_spin_unlock+0x11d/0x230
[ 118.123867][ T4648] kobject_add_internal+0x61c/0xcc0
[ 118.129195][ T4648] kobject_init_and_add+0x128/0x190
[ 118.134624][ T4648] ? lockdep_softirqs_off+0x430/0x430
[ 118.140124][ T4648] ? kobject_add+0x230/0x230
[ 118.145195][ T4648] ? __init_swait_queue_head+0xa5/0x150
[ 118.151131][ T4648] gfs2_sys_fs_add+0x24f/0x4b0
[ 118.156216][ T4648] ? gfs2_recover_set+0x240/0x240
[ 118.161959][ T4648] ? snprintf+0xe5/0x140
[ 118.166788][ T4648] ? vscnprintf+0x80/0x80
[ 118.171252][ T4648] gfs2_fill_super+0x128c/0x1fb0
[ 118.176325][ T4648] ? gfs2_reconfigure+0xd30/0xd30
[ 118.181825][ T4648] ? sb_set_blocksize+0xa5/0xe0
[ 118.187225][ T4648] get_tree_bdev+0x3f1/0x610
[ 118.192177][ T4648] ? gfs2_reconfigure+0xd30/0xd30
[ 118.197224][ T4648] gfs2_get_tree+0x4d/0x1e0
[ 118.202008][ T4648] vfs_get_tree+0x88/0x270
[ 118.206613][ T4648] do_new_mount+0x24a/0xa40
[ 118.211403][ T4648] __se_sys_mount+0x2e3/0x3d0
[ 118.216194][ T4648] ? __x64_sys_mount+0xc0/0xc0
[ 118.221341][ T4648] ? lockdep_hardirqs_on+0x94/0x140
[ 118.226753][ T4648] ? __x64_sys_mount+0x1c/0xc0
[ 118.231707][ T4648] do_syscall_64+0x4c/0xa0
[ 118.236140][ T4648] ? clear_bhb_loop+0x60/0xb0
[ 118.240917][ T4648] ? clear_bhb_loop+0x60/0xb0
[ 118.245778][ T4648] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 118.251684][ T4648] RIP: 0033:0x7f91e219c14a
[ 118.256378][ T4648] 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
[ 118.276618][ T4648] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 118.285417][ T4648] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 118.293674][ T4648] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 118.301872][ T4648] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 118.310150][ T4648] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 118.318344][ T4648] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 118.326732][ T4648]
[ 118.330890][ T4648] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 118.336782][ T4652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 118.344261][ T4648] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 118.360944][ T4652] CPU: 1 PID: 4652 Comm: syz.4.72 Not tainted syzkaller #0
[ 118.368432][ T4652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 118.378743][ T4652] Call Trace:
[ 118.382422][ T4652]
[ 118.385384][ T4652] dump_stack_lvl+0x188/0x24e
[ 118.390393][ T4652] ? show_regs_print_info+0x12/0x12
[ 118.395897][ T4652] ? load_image+0x400/0x400
[ 118.400634][ T4652] sysfs_create_dir_ns+0x26a/0x290
[ 118.406259][ T4652] ? sysfs_warn_dup+0xa0/0xa0
[ 118.411092][ T4652] ? do_raw_spin_unlock+0x11d/0x230
[ 118.416799][ T4652] kobject_add_internal+0x61c/0xcc0
[ 118.422325][ T4652] kobject_init_and_add+0x128/0x190
[ 118.427843][ T4652] ? lockdep_softirqs_off+0x430/0x430
[ 118.433281][ T4652] ? kobject_add+0x230/0x230
[ 118.438014][ T4652] ? __init_swait_queue_head+0xa5/0x150
[ 118.444306][ T4652] gfs2_sys_fs_add+0x24f/0x4b0
[ 118.449207][ T4652] ? gfs2_recover_set+0x240/0x240
[ 118.454591][ T4652] ? snprintf+0xe5/0x140
[ 118.459480][ T4652] ? vscnprintf+0x80/0x80
[ 118.464566][ T4652] gfs2_fill_super+0x128c/0x1fb0
[ 118.469753][ T4652] ? gfs2_reconfigure+0xd30/0xd30
[ 118.475010][ T4652] ? sb_set_blocksize+0xa5/0xe0
[ 118.480267][ T4652] get_tree_bdev+0x3f1/0x610
[ 118.485079][ T4652] ? gfs2_reconfigure+0xd30/0xd30
[ 118.490313][ T4652] gfs2_get_tree+0x4d/0x1e0
[ 118.494861][ T4652] vfs_get_tree+0x88/0x270
[ 118.500024][ T4652] do_new_mount+0x24a/0xa40
[ 118.504773][ T4652] __se_sys_mount+0x2e3/0x3d0
[ 118.509771][ T4652] ? __x64_sys_mount+0xc0/0xc0
[ 118.514589][ T4652] ? lockdep_hardirqs_on+0x94/0x140
[ 118.520125][ T4652] ? __x64_sys_mount+0x1c/0xc0
[ 118.525103][ T4652] do_syscall_64+0x4c/0xa0
[ 118.529843][ T4652] ? clear_bhb_loop+0x60/0xb0
[ 118.534579][ T4652] ? clear_bhb_loop+0x60/0xb0
[ 118.539397][ T4652] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 118.545349][ T4652] RIP: 0033:0x7f5a7119c14a
[ 118.549993][ T4652] 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
[ 118.570609][ T4652] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 118.579242][ T4652] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 118.587621][ T4652] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 118.596694][ T4652] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 118.605153][ T4652] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 118.614145][ T4652] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 118.622599][ T4652]
[ 118.625924][ T4652] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 118.639604][ T4652] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 119.106368][ T4657] loop0: detected capacity change from 0 to 32768
[ 119.490952][ T4657] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 119.499869][ T4657] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 119.511372][ T4657] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 119.521066][ T4464] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 119.528261][ T4464] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
2026/02/08 13:35:10 executed programs: 69
[ 120.402068][ T4663] loop4: detected capacity change from 0 to 32768
[ 120.410473][ T4663] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 120.418297][ T4663] CPU: 0 PID: 4663 Comm: syz.4.77 Not tainted syzkaller #0
[ 120.418863][ T4667] loop2: detected capacity change from 0 to 32768
[ 120.425771][ T4663] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 120.425786][ T4663] Call Trace:
[ 120.425793][ T4663]
[ 120.425800][ T4663] dump_stack_lvl+0x188/0x24e
[ 120.455242][ T4663] ? show_regs_print_info+0x12/0x12
[ 120.460821][ T4663] ? load_image+0x400/0x400
[ 120.465729][ T4663] sysfs_create_dir_ns+0x26a/0x290
[ 120.471038][ T4663] ? sysfs_warn_dup+0xa0/0xa0
[ 120.476022][ T4663] ? do_raw_spin_unlock+0x11d/0x230
[ 120.481355][ T4663] kobject_add_internal+0x61c/0xcc0
[ 120.486705][ T4663] kobject_init_and_add+0x128/0x190
[ 120.492150][ T4663] ? lockdep_softirqs_off+0x430/0x430
[ 120.497749][ T4663] ? kobject_add+0x230/0x230
[ 120.502607][ T4663] ? __init_swait_queue_head+0xa5/0x150
[ 120.503771][ T4667] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 120.508641][ T4663] gfs2_sys_fs_add+0x24f/0x4b0
[ 120.521850][ T4663] ? gfs2_recover_set+0x240/0x240
[ 120.527329][ T4663] ? snprintf+0xe5/0x140
[ 120.531864][ T4663] ? vscnprintf+0x80/0x80
[ 120.536422][ T4663] gfs2_fill_super+0x128c/0x1fb0
[ 120.541579][ T4663] ? gfs2_reconfigure+0xd30/0xd30
[ 120.546895][ T4663] ? sb_set_blocksize+0xa5/0xe0
[ 120.552115][ T4663] get_tree_bdev+0x3f1/0x610
[ 120.557054][ T4663] ? gfs2_reconfigure+0xd30/0xd30
[ 120.563715][ T4663] gfs2_get_tree+0x4d/0x1e0
[ 120.568516][ T4663] vfs_get_tree+0x88/0x270
[ 120.573155][ T4663] do_new_mount+0x24a/0xa40
[ 120.578488][ T4663] __se_sys_mount+0x2e3/0x3d0
[ 120.583882][ T4663] ? __x64_sys_mount+0xc0/0xc0
[ 120.588923][ T4663] ? lockdep_hardirqs_on+0x94/0x140
[ 120.594314][ T4663] ? __x64_sys_mount+0x1c/0xc0
[ 120.599268][ T4663] do_syscall_64+0x4c/0xa0
[ 120.603971][ T4663] ? clear_bhb_loop+0x60/0xb0
[ 120.609009][ T4663] ? clear_bhb_loop+0x60/0xb0
[ 120.614600][ T4663] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 120.620941][ T4663] RIP: 0033:0x7f5a7119c14a
[ 120.625752][ T4663] 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
[ 120.647397][ T4663] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 120.657667][ T4663] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 120.666955][ T4663] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 120.676468][ T4663] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 120.686491][ T4663] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 120.695531][ T4663] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 120.704637][ T4663]
[ 120.708037][ T4667] CPU: 1 PID: 4667 Comm: syz.2.79 Not tainted syzkaller #0
[ 120.708833][ T4663] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 120.716446][ T4667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 120.716461][ T4667] Call Trace:
[ 120.716469][ T4667]
[ 120.716478][ T4667] dump_stack_lvl+0x188/0x24e
[ 120.716514][ T4667] ? show_regs_print_info+0x12/0x12
[ 120.730778][ T4663] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 120.740943][ T4667] ? load_image+0x400/0x400
[ 120.740989][ T4667] sysfs_create_dir_ns+0x26a/0x290
[ 120.741022][ T4667] ? sysfs_warn_dup+0xa0/0xa0
[ 120.779329][ T4667] ? do_raw_spin_unlock+0x11d/0x230
[ 120.784769][ T4667] kobject_add_internal+0x61c/0xcc0
[ 120.790698][ T4667] kobject_init_and_add+0x128/0x190
[ 120.797240][ T4667] ? lockdep_softirqs_off+0x430/0x430
[ 120.802904][ T4667] ? kobject_add+0x230/0x230
[ 120.808140][ T4667] ? __init_swait_queue_head+0xa5/0x150
[ 120.813966][ T4667] gfs2_sys_fs_add+0x24f/0x4b0
[ 120.818756][ T4667] ? gfs2_recover_set+0x240/0x240
[ 120.823881][ T4667] ? snprintf+0xe5/0x140
[ 120.828313][ T4667] ? vscnprintf+0x80/0x80
[ 120.832774][ T4667] gfs2_fill_super+0x128c/0x1fb0
[ 120.838506][ T4667] ? gfs2_reconfigure+0xd30/0xd30
[ 120.843984][ T4667] ? sb_set_blocksize+0xa5/0xe0
[ 120.849211][ T4667] get_tree_bdev+0x3f1/0x610
[ 120.854267][ T4667] ? gfs2_reconfigure+0xd30/0xd30
[ 120.860430][ T4667] gfs2_get_tree+0x4d/0x1e0
[ 120.865130][ T4667] vfs_get_tree+0x88/0x270
[ 120.869560][ T4667] do_new_mount+0x24a/0xa40
[ 120.875317][ T4667] __se_sys_mount+0x2e3/0x3d0
[ 120.880831][ T4667] ? __x64_sys_mount+0xc0/0xc0
[ 120.886529][ T4667] ? lockdep_hardirqs_on+0x94/0x140
[ 120.893092][ T4667] ? __x64_sys_mount+0x1c/0xc0
[ 120.898344][ T4667] do_syscall_64+0x4c/0xa0
[ 120.903155][ T4667] ? clear_bhb_loop+0x60/0xb0
[ 120.907955][ T4667] ? clear_bhb_loop+0x60/0xb0
[ 120.912924][ T4667] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 120.918827][ T4667] RIP: 0033:0x7f91e219c14a
[ 120.923620][ T4667] 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
[ 120.944291][ T4667] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 120.952991][ T4667] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 120.961242][ T4667] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 120.969574][ T4667] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 120.978002][ T4667] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 120.986253][ T4667] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 120.994681][ T4667]
[ 121.001381][ T4667] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 121.015454][ T4667] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 121.384913][ T4670] loop3: detected capacity change from 0 to 32768
[ 121.401496][ T4670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 121.409160][ T4670] CPU: 0 PID: 4670 Comm: syz.3.78 Not tainted syzkaller #0
[ 121.416754][ T4670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 121.427378][ T4670] Call Trace:
[ 121.430796][ T4670]
[ 121.433845][ T4670] dump_stack_lvl+0x188/0x24e
[ 121.439272][ T4670] ? show_regs_print_info+0x12/0x12
[ 121.444694][ T4670] ? load_image+0x400/0x400
[ 121.449378][ T4670] sysfs_create_dir_ns+0x26a/0x290
[ 121.454884][ T4670] ? sysfs_warn_dup+0xa0/0xa0
[ 121.459931][ T4670] ? do_raw_spin_unlock+0x11d/0x230
[ 121.465444][ T4670] kobject_add_internal+0x61c/0xcc0
[ 121.471553][ T4670] kobject_init_and_add+0x128/0x190
[ 121.476983][ T4670] ? lockdep_softirqs_off+0x430/0x430
[ 121.482763][ T4670] ? kobject_add+0x230/0x230
[ 121.487991][ T4670] ? __init_swait_queue_head+0xa5/0x150
[ 121.493887][ T4670] gfs2_sys_fs_add+0x24f/0x4b0
[ 121.499145][ T4670] ? gfs2_recover_set+0x240/0x240
[ 121.504396][ T4670] ? snprintf+0xe5/0x140
[ 121.508770][ T4670] ? vscnprintf+0x80/0x80
[ 121.513353][ T4670] gfs2_fill_super+0x128c/0x1fb0
[ 121.518642][ T4670] ? gfs2_reconfigure+0xd30/0xd30
[ 121.524009][ T4670] ? sb_set_blocksize+0xa5/0xe0
[ 121.528913][ T4670] get_tree_bdev+0x3f1/0x610
[ 121.533743][ T4670] ? gfs2_reconfigure+0xd30/0xd30
[ 121.539102][ T4670] gfs2_get_tree+0x4d/0x1e0
[ 121.543923][ T4670] vfs_get_tree+0x88/0x270
[ 121.548388][ T4670] do_new_mount+0x24a/0xa40
[ 121.553033][ T4670] __se_sys_mount+0x2e3/0x3d0
[ 121.558202][ T4670] ? __x64_sys_mount+0xc0/0xc0
[ 121.563448][ T4670] ? lockdep_hardirqs_on+0x94/0x140
[ 121.568774][ T4670] ? __x64_sys_mount+0x1c/0xc0
[ 121.573980][ T4670] do_syscall_64+0x4c/0xa0
[ 121.578534][ T4670] ? clear_bhb_loop+0x60/0xb0
[ 121.583602][ T4670] ? clear_bhb_loop+0x60/0xb0
[ 121.588590][ T4670] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 121.594786][ T4670] RIP: 0033:0x7fac18b9c14a
[ 121.599392][ T4670] 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
[ 121.619568][ T4670] RSP: 002b:00007fac199d6e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 121.628390][ T4670] RAX: ffffffffffffffda RBX: 00007fac199d6ee0 RCX: 00007fac18b9c14a
[ 121.637119][ T4670] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fac199d6ea0
[ 121.645136][ T4670] RBP: 00002000000124c0 R08: 00007fac199d6ee0 R09: 0000000000000000
[ 121.653869][ T4670] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 121.662232][ T4670] R13: 00007fac199d6ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 121.670280][ T4670]
[ 121.698637][ T4464] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 2170ms
[ 121.706971][ T4464] gfs2: fsid=syz:syz.0: jid=0: Done
[ 121.712842][ T4670] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 121.727817][ T4670] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 121.736136][ T4657] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 121.745679][ T4657] gfs2: fsid=syz:syz.0: can't start logd thread: -4
[ 121.963710][ T4675] loop1: detected capacity change from 0 to 32768
[ 121.973724][ T4675] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 121.982361][ T4675] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 122.082040][ T4298] I/O error, dev loop4, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 122.083501][ T4675] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 122.218846][ T22] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 122.240890][ T22] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 122.472069][ T4681] loop3: detected capacity change from 0 to 32768
[ 122.519575][ T4681] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 122.528054][ T4681] CPU: 0 PID: 4681 Comm: syz.3.84 Not tainted syzkaller #0
[ 122.535567][ T4681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 122.546359][ T4681] Call Trace:
[ 122.549760][ T4681]
[ 122.552817][ T4681] dump_stack_lvl+0x188/0x24e
[ 122.558087][ T4681] ? show_regs_print_info+0x12/0x12
[ 122.564642][ T4681] ? load_image+0x400/0x400
[ 122.569640][ T4681] sysfs_create_dir_ns+0x26a/0x290
[ 122.574922][ T4681] ? sysfs_warn_dup+0xa0/0xa0
[ 122.579670][ T4681] ? do_raw_spin_unlock+0x11d/0x230
[ 122.585028][ T4681] kobject_add_internal+0x61c/0xcc0
[ 122.590280][ T4681] kobject_init_and_add+0x128/0x190
[ 122.595730][ T4681] ? lockdep_softirqs_off+0x430/0x430
[ 122.601252][ T4681] ? kobject_add+0x230/0x230
[ 122.605999][ T4681] ? __init_swait_queue_head+0xa5/0x150
[ 122.611706][ T4681] gfs2_sys_fs_add+0x24f/0x4b0
[ 122.617128][ T4681] ? gfs2_recover_set+0x240/0x240
[ 122.622198][ T4681] ? snprintf+0xe5/0x140
[ 122.626759][ T4681] ? vscnprintf+0x80/0x80
[ 122.631397][ T4681] gfs2_fill_super+0x128c/0x1fb0
[ 122.636909][ T4681] ? gfs2_reconfigure+0xd30/0xd30
[ 122.642703][ T4681] ? sb_set_blocksize+0xa5/0xe0
[ 122.647870][ T4681] get_tree_bdev+0x3f1/0x610
[ 122.652508][ T4681] ? gfs2_reconfigure+0xd30/0xd30
[ 122.658089][ T4681] gfs2_get_tree+0x4d/0x1e0
[ 122.662642][ T4681] vfs_get_tree+0x88/0x270
[ 122.667187][ T4681] do_new_mount+0x24a/0xa40
[ 122.671933][ T4681] __se_sys_mount+0x2e3/0x3d0
[ 122.676942][ T4681] ? __x64_sys_mount+0xc0/0xc0
[ 122.682709][ T4681] ? lockdep_hardirqs_on+0x94/0x140
[ 122.687941][ T4681] ? __x64_sys_mount+0x1c/0xc0
[ 122.693177][ T4681] do_syscall_64+0x4c/0xa0
[ 122.697647][ T4681] ? clear_bhb_loop+0x60/0xb0
[ 122.702382][ T4681] ? clear_bhb_loop+0x60/0xb0
[ 122.707184][ T4681] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 122.713297][ T4681] RIP: 0033:0x7fac18b9c14a
[ 122.717850][ T4681] 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
[ 122.738405][ T4681] RSP: 002b:00007fac199d6e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 122.747403][ T4681] RAX: ffffffffffffffda RBX: 00007fac199d6ee0 RCX: 00007fac18b9c14a
[ 122.756033][ T4681] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fac199d6ea0
[ 122.764830][ T4681] RBP: 00002000000124c0 R08: 00007fac199d6ee0 R09: 0000000000000000
[ 122.773102][ T4681] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 122.781472][ T4681] R13: 00007fac199d6ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 122.790202][ T4681]
[ 122.794033][ T4681] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 122.807617][ T4681] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 123.243790][ T4685] loop2: detected capacity change from 0 to 32768
[ 123.252663][ T4683] loop4: detected capacity change from 0 to 32768
[ 123.301606][ T4685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 123.309614][ T4685] CPU: 0 PID: 4685 Comm: syz.2.87 Not tainted syzkaller #0
[ 123.317514][ T4685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 123.328463][ T4685] Call Trace:
[ 123.331876][ T4685]
[ 123.335186][ T4685] dump_stack_lvl+0x188/0x24e
[ 123.340536][ T4685] ? show_regs_print_info+0x12/0x12
[ 123.346144][ T4685] ? load_image+0x400/0x400
[ 123.351022][ T4685] sysfs_create_dir_ns+0x26a/0x290
[ 123.356528][ T4685] ? sysfs_warn_dup+0xa0/0xa0
[ 123.361347][ T4685] ? do_raw_spin_unlock+0x11d/0x230
[ 123.366963][ T4685] kobject_add_internal+0x61c/0xcc0
[ 123.372603][ T4685] kobject_init_and_add+0x128/0x190
[ 123.378116][ T4685] ? lockdep_softirqs_off+0x430/0x430
[ 123.383552][ T4685] ? kobject_add+0x230/0x230
[ 123.388220][ T4685] ? __init_swait_queue_head+0xa5/0x150
[ 123.394256][ T4685] gfs2_sys_fs_add+0x24f/0x4b0
[ 123.399266][ T4685] ? gfs2_recover_set+0x240/0x240
[ 123.404342][ T4685] ? snprintf+0xe5/0x140
[ 123.408638][ T4685] ? vscnprintf+0x80/0x80
[ 123.413116][ T4685] gfs2_fill_super+0x128c/0x1fb0
[ 123.418388][ T4685] ? gfs2_reconfigure+0xd30/0xd30
[ 123.423916][ T4685] ? sb_set_blocksize+0xa5/0xe0
[ 123.428992][ T4685] get_tree_bdev+0x3f1/0x610
[ 123.434077][ T4685] ? gfs2_reconfigure+0xd30/0xd30
[ 123.439588][ T4685] gfs2_get_tree+0x4d/0x1e0
[ 123.444320][ T4685] vfs_get_tree+0x88/0x270
[ 123.448886][ T4685] do_new_mount+0x24a/0xa40
[ 123.453451][ T4685] __se_sys_mount+0x2e3/0x3d0
[ 123.458528][ T4685] ? __x64_sys_mount+0xc0/0xc0
[ 123.463445][ T4685] ? lockdep_hardirqs_on+0x94/0x140
[ 123.469120][ T4685] ? __x64_sys_mount+0x1c/0xc0
[ 123.474099][ T4685] do_syscall_64+0x4c/0xa0
[ 123.478929][ T4685] ? clear_bhb_loop+0x60/0xb0
[ 123.483913][ T4685] ? clear_bhb_loop+0x60/0xb0
[ 123.488923][ T4685] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 123.495322][ T4685] RIP: 0033:0x7f91e219c14a
[ 123.499962][ T4685] 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
[ 123.520143][ T4685] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 123.529068][ T4685] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 123.537492][ T4685] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 123.545599][ T4685] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 123.554043][ T4685] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 123.562502][ T4685] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 123.570610][ T4685]
[ 123.577577][ T4685] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 123.590891][ T4685] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 123.591563][ T4683] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 123.605673][ T4683] CPU: 1 PID: 4683 Comm: syz.4.85 Not tainted syzkaller #0
[ 123.612924][ T4683] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 123.623159][ T4683] Call Trace:
[ 123.626553][ T4683]
[ 123.629636][ T4683] dump_stack_lvl+0x188/0x24e
[ 123.634450][ T4683] ? show_regs_print_info+0x12/0x12
[ 123.639787][ T4683] ? load_image+0x400/0x400
[ 123.645064][ T4683] sysfs_create_dir_ns+0x26a/0x290
[ 123.650494][ T4683] ? sysfs_warn_dup+0xa0/0xa0
[ 123.655583][ T4683] ? do_raw_spin_unlock+0x11d/0x230
[ 123.661005][ T4683] kobject_add_internal+0x61c/0xcc0
[ 123.666423][ T4683] kobject_init_and_add+0x128/0x190
[ 123.675356][ T4683] ? lockdep_softirqs_off+0x430/0x430
[ 123.681049][ T4683] ? kobject_add+0x230/0x230
[ 123.685789][ T4683] ? __init_swait_queue_head+0xa5/0x150
[ 123.691922][ T4683] gfs2_sys_fs_add+0x24f/0x4b0
[ 123.697273][ T4683] ? gfs2_recover_set+0x240/0x240
[ 123.702446][ T4683] ? snprintf+0xe5/0x140
[ 123.706827][ T4683] ? vscnprintf+0x80/0x80
[ 123.711210][ T4683] gfs2_fill_super+0x128c/0x1fb0
[ 123.717050][ T4683] ? gfs2_reconfigure+0xd30/0xd30
[ 123.722186][ T4683] ? sb_set_blocksize+0xa5/0xe0
[ 123.727240][ T4683] get_tree_bdev+0x3f1/0x610
[ 123.731943][ T4683] ? gfs2_reconfigure+0xd30/0xd30
[ 123.737075][ T4683] gfs2_get_tree+0x4d/0x1e0
[ 123.742252][ T4683] vfs_get_tree+0x88/0x270
[ 123.746766][ T4683] do_new_mount+0x24a/0xa40
[ 123.751463][ T4683] __se_sys_mount+0x2e3/0x3d0
[ 123.756248][ T4683] ? __x64_sys_mount+0xc0/0xc0
[ 123.761114][ T4683] ? lockdep_hardirqs_on+0x94/0x140
[ 123.766507][ T4683] ? __x64_sys_mount+0x1c/0xc0
[ 123.771565][ T4683] do_syscall_64+0x4c/0xa0
[ 123.776434][ T4683] ? clear_bhb_loop+0x60/0xb0
[ 123.781208][ T4683] ? clear_bhb_loop+0x60/0xb0
[ 123.786038][ T4683] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 123.792116][ T4683] RIP: 0033:0x7f5a7119c14a
[ 123.796725][ T4683] 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
[ 123.816990][ T4683] RSP: 002b:00007f5a72108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 123.825688][ T4683] RAX: ffffffffffffffda RBX: 00007f5a72108ee0 RCX: 00007f5a7119c14a
[ 123.833878][ T4683] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f5a72108ea0
[ 123.842405][ T4683] RBP: 00002000000124c0 R08: 00007f5a72108ee0 R09: 0000000000000000
[ 123.851374][ T4683] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 123.859623][ T4683] R13: 00007f5a72108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 123.867964][ T4683]
[ 123.872460][ T4683] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 123.887151][ T4683] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 123.899973][ T22] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 1659ms
[ 123.909477][ T22] gfs2: fsid=syz:syz.0: jid=0: Done
[ 123.915395][ T4675] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 123.964676][ T4532] I/O error, dev loop3, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
2026/02/08 13:35:15 executed programs: 82
[ 124.383141][ T4692] loop0: detected capacity change from 0 to 32768
[ 124.402905][ T4692] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 124.410436][ T4692] CPU: 1 PID: 4692 Comm: syz.0.88 Not tainted syzkaller #0
[ 124.417758][ T4692] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 124.428203][ T4692] Call Trace:
[ 124.431698][ T4692]
[ 124.434664][ T4692] dump_stack_lvl+0x188/0x24e
[ 124.439582][ T4692] ? show_regs_print_info+0x12/0x12
[ 124.444830][ T4692] ? load_image+0x400/0x400
[ 124.449604][ T4692] sysfs_create_dir_ns+0x26a/0x290
[ 124.455230][ T4692] ? sysfs_warn_dup+0xa0/0xa0
[ 124.460045][ T4692] ? do_raw_spin_unlock+0x11d/0x230
[ 124.465586][ T4692] kobject_add_internal+0x61c/0xcc0
[ 124.471089][ T4692] kobject_init_and_add+0x128/0x190
[ 124.476775][ T4692] ? lockdep_softirqs_off+0x430/0x430
[ 124.482459][ T4692] ? kobject_add+0x230/0x230
[ 124.487093][ T4692] ? __init_swait_queue_head+0xa5/0x150
[ 124.492907][ T4692] gfs2_sys_fs_add+0x24f/0x4b0
[ 124.498214][ T4692] ? gfs2_recover_set+0x240/0x240
[ 124.503976][ T4692] ? snprintf+0xe5/0x140
[ 124.508605][ T4692] ? vscnprintf+0x80/0x80
[ 124.513168][ T4692] gfs2_fill_super+0x128c/0x1fb0
[ 124.518505][ T4692] ? gfs2_reconfigure+0xd30/0xd30
[ 124.523668][ T4692] ? sb_set_blocksize+0xa5/0xe0
[ 124.528928][ T4692] get_tree_bdev+0x3f1/0x610
[ 124.533908][ T4692] ? gfs2_reconfigure+0xd30/0xd30
[ 124.539322][ T4692] gfs2_get_tree+0x4d/0x1e0
[ 124.544120][ T4692] vfs_get_tree+0x88/0x270
[ 124.548664][ T4692] do_new_mount+0x24a/0xa40
[ 124.553473][ T4692] __se_sys_mount+0x2e3/0x3d0
[ 124.558381][ T4692] ? __x64_sys_mount+0xc0/0xc0
[ 124.563222][ T4692] ? lockdep_hardirqs_on+0x94/0x140
[ 124.568888][ T4692] ? __x64_sys_mount+0x1c/0xc0
[ 124.573886][ T4692] do_syscall_64+0x4c/0xa0
[ 124.578791][ T4692] ? clear_bhb_loop+0x60/0xb0
[ 124.583707][ T4692] ? clear_bhb_loop+0x60/0xb0
[ 124.588891][ T4692] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 124.595246][ T4692] RIP: 0033:0x7f245af9c14a
[ 124.599800][ T4692] 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
[ 124.620761][ T4692] RSP: 002b:00007f245be52e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 124.629791][ T4692] RAX: ffffffffffffffda RBX: 00007f245be52ee0 RCX: 00007f245af9c14a
[ 124.638253][ T4692] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f245be52ea0
[ 124.647063][ T4692] RBP: 00002000000124c0 R08: 00007f245be52ee0 R09: 0000000000000000
[ 124.655987][ T4692] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 124.664636][ T4692] R13: 00007f245be52ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 124.673196][ T4692]
[ 124.679723][ T4692] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 124.693727][ T4692] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 124.701609][ T4675] gfs2: fsid=syz:syz.0: can't start quotad thread: -4
[ 125.138717][ T4697] loop4: detected capacity change from 0 to 32768
[ 125.149230][ T4696] loop3: detected capacity change from 0 to 32768
[ 125.160561][ T4696] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 125.162874][ T4697] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 125.168347][ T4696] CPU: 1 PID: 4696 Comm: syz.3.91 Not tainted syzkaller #0
[ 125.176591][ T4697] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 125.184006][ T4696] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 125.184021][ T4696] Call Trace:
[ 125.184029][ T4696]
[ 125.184038][ T4696] dump_stack_lvl+0x188/0x24e
[ 125.214712][ T4696] ? show_regs_print_info+0x12/0x12
[ 125.220094][ T4696] ? load_image+0x400/0x400
[ 125.224998][ T4696] sysfs_create_dir_ns+0x26a/0x290
[ 125.230239][ T4696] ? sysfs_warn_dup+0xa0/0xa0
[ 125.235097][ T4696] ? do_raw_spin_unlock+0x11d/0x230
[ 125.240694][ T4696] kobject_add_internal+0x61c/0xcc0
[ 125.246304][ T4696] kobject_init_and_add+0x128/0x190
[ 125.251992][ T4696] ? lockdep_softirqs_off+0x430/0x430
[ 125.257677][ T4696] ? kobject_add+0x230/0x230
[ 125.262591][ T4696] ? __init_swait_queue_head+0xa5/0x150
[ 125.268651][ T4696] gfs2_sys_fs_add+0x24f/0x4b0
[ 125.274016][ T4696] ? gfs2_recover_set+0x240/0x240
[ 125.279648][ T4696] ? snprintf+0xe5/0x140
[ 125.284207][ T4696] ? vscnprintf+0x80/0x80
[ 125.288770][ T4696] gfs2_fill_super+0x128c/0x1fb0
[ 125.293862][ T4696] ? gfs2_reconfigure+0xd30/0xd30
[ 125.299108][ T4696] ? sb_set_blocksize+0xa5/0xe0
[ 125.304270][ T4696] get_tree_bdev+0x3f1/0x610
[ 125.308983][ T4696] ? gfs2_reconfigure+0xd30/0xd30
[ 125.314125][ T4696] gfs2_get_tree+0x4d/0x1e0
[ 125.318667][ T4696] vfs_get_tree+0x88/0x270
[ 125.323577][ T4696] do_new_mount+0x24a/0xa40
[ 125.328319][ T4696] __se_sys_mount+0x2e3/0x3d0
[ 125.333923][ T4696] ? __x64_sys_mount+0xc0/0xc0
[ 125.338910][ T4696] ? lockdep_hardirqs_on+0x94/0x140
[ 125.344684][ T4696] ? __x64_sys_mount+0x1c/0xc0
[ 125.349762][ T4696] do_syscall_64+0x4c/0xa0
[ 125.354228][ T4696] ? clear_bhb_loop+0x60/0xb0
[ 125.359295][ T4696] ? clear_bhb_loop+0x60/0xb0
[ 125.364441][ T4696] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 125.371932][ T4696] RIP: 0033:0x7fac18b9c14a
[ 125.376825][ T4696] 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
[ 125.397445][ T4696] RSP: 002b:00007fac199d6e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 125.406255][ T4696] RAX: ffffffffffffffda RBX: 00007fac199d6ee0 RCX: 00007fac18b9c14a
[ 125.414276][ T4696] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fac199d6ea0
[ 125.422392][ T4696] RBP: 00002000000124c0 R08: 00007fac199d6ee0 R09: 0000000000000000
[ 125.430934][ T4696] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 125.439579][ T4696] R13: 00007fac199d6ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 125.448134][ T4696]
[ 125.453698][ T4696] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 125.468819][ T4696] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 125.616647][ T4697] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 125.626697][ T4271] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 125.642470][ T4271] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 126.619858][ T4709] loop0: detected capacity change from 0 to 32768
[ 126.638843][ T4709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 126.647281][ T4709] CPU: 1 PID: 4709 Comm: syz.0.96 Not tainted syzkaller #0
[ 126.654637][ T4709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 126.665040][ T4709] Call Trace:
[ 126.668613][ T4709]
[ 126.671930][ T4709] dump_stack_lvl+0x188/0x24e
[ 126.677364][ T4709] ? show_regs_print_info+0x12/0x12
[ 126.683167][ T4709] ? load_image+0x400/0x400
[ 126.688078][ T4709] sysfs_create_dir_ns+0x26a/0x290
[ 126.693584][ T4709] ? sysfs_warn_dup+0xa0/0xa0
[ 126.698508][ T4709] ? do_raw_spin_unlock+0x11d/0x230
[ 126.703861][ T4709] kobject_add_internal+0x61c/0xcc0
[ 126.709384][ T4709] kobject_init_and_add+0x128/0x190
[ 126.714819][ T4709] ? lockdep_softirqs_off+0x430/0x430
[ 126.720683][ T4709] ? kobject_add+0x230/0x230
[ 126.725505][ T4709] ? __init_swait_queue_head+0xa5/0x150
[ 126.731189][ T4709] gfs2_sys_fs_add+0x24f/0x4b0
[ 126.731925][ T4271] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 1089ms
[ 126.736095][ T4709] ? gfs2_recover_set+0x240/0x240
[ 126.736127][ T4709] ? snprintf+0xe5/0x140
[ 126.736153][ T4709] ? vscnprintf+0x80/0x80
[ 126.758255][ T4709] gfs2_fill_super+0x128c/0x1fb0
[ 126.763454][ T4709] ? gfs2_reconfigure+0xd30/0xd30
[ 126.768802][ T4709] ? sb_set_blocksize+0xa5/0xe0
[ 126.773799][ T4709] get_tree_bdev+0x3f1/0x610
[ 126.778888][ T4709] ? gfs2_reconfigure+0xd30/0xd30
[ 126.784465][ T4709] gfs2_get_tree+0x4d/0x1e0
[ 126.788992][ T4709] vfs_get_tree+0x88/0x270
[ 126.793518][ T4709] do_new_mount+0x24a/0xa40
[ 126.798140][ T4709] __se_sys_mount+0x2e3/0x3d0
[ 126.803095][ T4709] ? __x64_sys_mount+0xc0/0xc0
[ 126.808400][ T4709] ? lockdep_hardirqs_on+0x94/0x140
[ 126.813883][ T4709] ? __x64_sys_mount+0x1c/0xc0
[ 126.818770][ T4709] do_syscall_64+0x4c/0xa0
[ 126.823377][ T4709] ? clear_bhb_loop+0x60/0xb0
[ 126.828678][ T4709] ? clear_bhb_loop+0x60/0xb0
[ 126.833568][ T4709] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 126.839687][ T4709] RIP: 0033:0x7f245af9c14a
[ 126.844205][ T4709] 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
[ 126.865479][ T4709] RSP: 002b:00007f245be52e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 126.874264][ T4709] RAX: ffffffffffffffda RBX: 00007f245be52ee0 RCX: 00007f245af9c14a
[ 126.882512][ T4709] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f245be52ea0
[ 126.891196][ T4709] RBP: 00002000000124c0 R08: 00007f245be52ee0 R09: 0000000000000000
[ 126.900756][ T4709] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 126.908822][ T4709] R13: 00007f245be52ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 126.917233][ T4709]
[ 126.924554][ T4709] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 126.941028][ T4709] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 127.351216][ T4271] gfs2: fsid=syz:syz.0: jid=0: Done
[ 127.843713][ T4697] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 127.854776][ T4697] gfs2: fsid=syz:syz.0: can't start logd thread: -4
[ 128.418811][ T4721] loop1: detected capacity change from 0 to 32768
[ 128.505033][ T4721] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 128.513910][ T4721] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 128.524170][ T4721] gfs2: fsid=syz:syz.0: journal 0 mapped with 5 extents in 0ms
[ 128.534699][ T4466] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 128.559686][ T4466] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 128.799929][ T4723] loop0: detected capacity change from 0 to 32768
[ 128.841431][ T4712] loop3: detected capacity change from 0 to 32768
[ 128.890626][ T4723] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 128.898566][ T4723] CPU: 1 PID: 4723 Comm: syz.0.104 Not tainted syzkaller #0
[ 128.906081][ T4723] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 128.916347][ T4723] Call Trace:
[ 128.919754][ T4723]
[ 128.922805][ T4723] dump_stack_lvl+0x188/0x24e
[ 128.927626][ T4723] ? show_regs_print_info+0x12/0x12
[ 128.932966][ T4723] ? load_image+0x400/0x400
[ 128.937626][ T4723] sysfs_create_dir_ns+0x26a/0x290
[ 128.942961][ T4723] ? sysfs_warn_dup+0xa0/0xa0
[ 128.947789][ T4723] ? do_raw_spin_unlock+0x11d/0x230
[ 128.953209][ T4723] kobject_add_internal+0x61c/0xcc0
[ 128.958655][ T4723] kobject_init_and_add+0x128/0x190
[ 128.964010][ T4723] ? lockdep_softirqs_off+0x430/0x430
[ 128.969531][ T4723] ? kobject_add+0x230/0x230
[ 128.974217][ T4723] ? __init_swait_queue_head+0xa5/0x150
[ 128.979903][ T4723] gfs2_sys_fs_add+0x24f/0x4b0
[ 128.984895][ T4723] ? gfs2_recover_set+0x240/0x240
[ 128.990224][ T4723] ? snprintf+0xe5/0x140
[ 128.994519][ T4723] ? vscnprintf+0x80/0x80
[ 128.998909][ T4723] gfs2_fill_super+0x128c/0x1fb0
[ 129.004080][ T4723] ? gfs2_reconfigure+0xd30/0xd30
[ 129.009145][ T4723] ? sb_set_blocksize+0xa5/0xe0
[ 129.014135][ T4723] get_tree_bdev+0x3f1/0x610
[ 129.018848][ T4723] ? gfs2_reconfigure+0xd30/0xd30
[ 129.023995][ T4723] gfs2_get_tree+0x4d/0x1e0
[ 129.028715][ T4723] vfs_get_tree+0x88/0x270
[ 129.033282][ T4723] do_new_mount+0x24a/0xa40
[ 129.037653][ T4725] loop2: detected capacity change from 0 to 32768
[ 129.037988][ T4723] __se_sys_mount+0x2e3/0x3d0
[ 129.049578][ T4723] ? __x64_sys_mount+0xc0/0xc0
[ 129.051795][ T4712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 129.054406][ T4723] ? lockdep_hardirqs_on+0x94/0x140
[ 129.067273][ T4723] ? __x64_sys_mount+0x1c/0xc0
[ 129.072292][ T4723] do_syscall_64+0x4c/0xa0
[ 129.076777][ T4723] ? clear_bhb_loop+0x60/0xb0
[ 129.081657][ T4723] ? clear_bhb_loop+0x60/0xb0
[ 129.086690][ T4723] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 129.091026][ T4725] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 129.092717][ T4723] RIP: 0033:0x7f245af9c14a
[ 129.104823][ T4723] 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
[ 129.124648][ T4723] RSP: 002b:00007f245be52e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 129.133163][ T4723] RAX: ffffffffffffffda RBX: 00007f245be52ee0 RCX: 00007f245af9c14a
[ 129.141404][ T4723] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f245be52ea0
[ 129.149488][ T4723] RBP: 00002000000124c0 R08: 00007f245be52ee0 R09: 0000000000000000
[ 129.157735][ T4723] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 129.166162][ T4723] R13: 00007f245be52ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 129.174503][ T4723]
[ 129.177641][ T4712] CPU: 0 PID: 4712 Comm: syz.3.98 Not tainted syzkaller #0
[ 129.179513][ T4723] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 129.185034][ T4712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 129.185050][ T4712] Call Trace:
[ 129.185057][ T4712]
[ 129.185066][ T4712] dump_stack_lvl+0x188/0x24e
[ 129.200034][ T4723] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 129.210696][ T4712] ? show_regs_print_info+0x12/0x12
[ 129.210739][ T4712] ? load_image+0x400/0x400
[ 129.210774][ T4712] sysfs_create_dir_ns+0x26a/0x290
[ 129.245540][ T4712] ? sysfs_warn_dup+0xa0/0xa0
[ 129.250602][ T4712] ? do_raw_spin_unlock+0x11d/0x230
[ 129.256154][ T4712] kobject_add_internal+0x61c/0xcc0
[ 129.261448][ T4712] kobject_init_and_add+0x128/0x190
[ 129.266930][ T4712] ? lockdep_softirqs_off+0x430/0x430
[ 129.273017][ T4712] ? kobject_add+0x230/0x230
[ 129.277733][ T4712] ? __init_swait_queue_head+0xa5/0x150
[ 129.284086][ T4712] gfs2_sys_fs_add+0x24f/0x4b0
[ 129.289044][ T4712] ? gfs2_recover_set+0x240/0x240
[ 129.294087][ T4712] ? snprintf+0xe5/0x140
[ 129.298344][ T4712] ? vscnprintf+0x80/0x80
[ 129.302879][ T4712] gfs2_fill_super+0x128c/0x1fb0
[ 129.308192][ T4712] ? gfs2_reconfigure+0xd30/0xd30
[ 129.313436][ T4712] ? sb_set_blocksize+0xa5/0xe0
[ 129.318576][ T4712] get_tree_bdev+0x3f1/0x610
[ 129.323534][ T4712] ? gfs2_reconfigure+0xd30/0xd30
[ 129.328839][ T4712] gfs2_get_tree+0x4d/0x1e0
[ 129.333375][ T4712] vfs_get_tree+0x88/0x270
[ 129.338250][ T4712] do_new_mount+0x24a/0xa40
[ 129.343217][ T4712] __se_sys_mount+0x2e3/0x3d0
[ 129.348086][ T4712] ? __x64_sys_mount+0xc0/0xc0
[ 129.353177][ T4712] ? lockdep_hardirqs_on+0x94/0x140
[ 129.359655][ T4712] ? __x64_sys_mount+0x1c/0xc0
[ 129.365169][ T4712] do_syscall_64+0x4c/0xa0
[ 129.370132][ T4712] ? clear_bhb_loop+0x60/0xb0
[ 129.375719][ T4712] ? clear_bhb_loop+0x60/0xb0
[ 129.380940][ T4712] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 129.387593][ T4712] RIP: 0033:0x7fac18b9c14a
[ 129.392828][ T4712] 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
[ 129.413149][ T4712] RSP: 002b:00007fac199d6e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 129.421925][ T4712] RAX: ffffffffffffffda RBX: 00007fac199d6ee0 RCX: 00007fac18b9c14a
[ 129.429917][ T4712] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007fac199d6ea0
[ 129.438333][ T4712] RBP: 00002000000124c0 R08: 00007fac199d6ee0 R09: 0000000000000000
[ 129.446406][ T4712] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 129.454958][ T4712] R13: 00007fac199d6ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 129.463494][ T4712]
[ 129.466965][ T4725] CPU: 1 PID: 4725 Comm: syz.2.105 Not tainted syzkaller #0
[ 129.467017][ T4712] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 129.474637][ T4725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 129.474650][ T4725] Call Trace:
[ 129.474658][ T4725]
[ 129.474665][ T4725] dump_stack_lvl+0x188/0x24e
[ 129.474698][ T4725] ? show_regs_print_info+0x12/0x12
[ 129.474725][ T4725] ? load_image+0x400/0x400
[ 129.488388][ T4712] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 129.527098][ T4725] sysfs_create_dir_ns+0x26a/0x290
[ 129.532371][ T4725] ? sysfs_warn_dup+0xa0/0xa0
[ 129.537368][ T4725] ? do_raw_spin_unlock+0x11d/0x230
[ 129.542861][ T4725] kobject_add_internal+0x61c/0xcc0
[ 129.548284][ T4725] kobject_init_and_add+0x128/0x190
[ 129.554398][ T4725] ? lockdep_softirqs_off+0x430/0x430
[ 129.559946][ T4725] ? kobject_add+0x230/0x230
[ 129.564928][ T4725] ? __init_swait_queue_head+0xa5/0x150
[ 129.570709][ T4725] gfs2_sys_fs_add+0x24f/0x4b0
[ 129.575579][ T4725] ? gfs2_recover_set+0x240/0x240
[ 129.581005][ T4725] ? snprintf+0xe5/0x140
[ 129.585557][ T4725] ? vscnprintf+0x80/0x80
[ 129.590114][ T4725] gfs2_fill_super+0x128c/0x1fb0
[ 129.595371][ T4725] ? gfs2_reconfigure+0xd30/0xd30
[ 129.600555][ T4725] ? sb_set_blocksize+0xa5/0xe0
[ 129.606510][ T4725] get_tree_bdev+0x3f1/0x610
[ 129.610016][ T4466] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 1050ms
[ 129.611485][ T4725] ? gfs2_reconfigure+0xd30/0xd30
[ 129.611515][ T4725] gfs2_get_tree+0x4d/0x1e0
[ 129.611539][ T4725] vfs_get_tree+0x88/0x270
[ 129.611563][ T4725] do_new_mount+0x24a/0xa40
[ 129.611592][ T4725] __se_sys_mount+0x2e3/0x3d0
[ 129.645416][ T4725] ? __x64_sys_mount+0xc0/0xc0
[ 129.650412][ T4725] ? lockdep_hardirqs_on+0x94/0x140
[ 129.656529][ T4725] ? __x64_sys_mount+0x1c/0xc0
[ 129.661623][ T4725] do_syscall_64+0x4c/0xa0
[ 129.666622][ T4725] ? clear_bhb_loop+0x60/0xb0
[ 129.671606][ T4725] ? clear_bhb_loop+0x60/0xb0
[ 129.676698][ T4725] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 129.682827][ T4725] RIP: 0033:0x7f91e219c14a
[ 129.687296][ T4725] 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
[ 129.701116][ T4466] gfs2: fsid=syz:syz.0: jid=0: Done
[ 129.707796][ T4725] RSP: 002b:00007f91e3108e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 129.707825][ T4725] RAX: ffffffffffffffda RBX: 00007f91e3108ee0 RCX: 00007f91e219c14a
[ 129.707840][ T4725] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91e3108ea0
[ 129.707854][ T4725] RBP: 00002000000124c0 R08: 00007f91e3108ee0 R09: 0000000000000000
[ 129.707868][ T4725] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500
[ 129.707880][ T4725] R13: 00007f91e3108ea0 R14: 00000000000125c7 R15: 0000200000000180
[ 129.762726][ T4725]
[ 129.766065][ T4725] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 129.780219][ T4725] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 129.904000][ T4721] gfs2: fsid=syz:syz.0: first mount done, others may mount
2026/02/08 13:35:21 executed programs: 99
[ 129.995260][ T4307] I/O error, dev loop0, sector 32640 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2
[ 130.391352][ T4729] loop3: detected capacity change from 0 to 32768
[ 130.466838][ T4731] loop4: detected capacity change from 0 to 32768
[ 130.788827][ T4734] loop2: detected capacity change from 0 to 32768
[ 130.811080][ T4522] ==================================================================
[ 130.819561][ T4522] BUG: KASAN: use-after-free in __lock_acquire+0x106/0x7d10
[ 130.827595][ T4522] Read of size 8 at addr ffff88805a1e4bb0 by task gfs2_quotad/4522
[ 130.835695][ T4522]
[ 130.838152][ T4522] CPU: 1 PID: 4522 Comm: gfs2_quotad Not tainted syzkaller #0
[ 130.846062][ T4522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 130.856934][ T4522] Call Trace:
[ 130.860682][ T4522]
[ 130.863838][ T4522] dump_stack_lvl+0x188/0x24e
[ 130.868903][ T4522] ? __lock_acquire+0x7d10/0x7d10
[ 130.874229][ T4522] ? show_regs_print_info+0x12/0x12
[ 130.879528][ T4522] ? load_image+0x400/0x400
[ 130.884057][ T4522] ? _raw_spin_lock_irqsave+0xbc/0x100
[ 130.889704][ T4522] ? __virt_addr_valid+0x188/0x540
[ 130.895195][ T4522] ? __virt_addr_valid+0x465/0x540
[ 130.900766][ T4522] ? __lock_acquire+0x106/0x7d10
[ 130.918928][ T4522] print_report+0xa8/0x210
[ 130.923663][ T4522] kasan_report+0x10b/0x140
[ 130.928554][ T4522] ? __lock_acquire+0x106/0x7d10
[ 130.933791][ T4522] __lock_acquire+0x106/0x7d10
[ 130.939193][ T4522] ? verify_lock_unused+0x140/0x140
[ 130.944791][ T4522] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 130.951505][ T4522] ? lock_chain_count+0x20/0x20
[ 130.956846][ T4522] ? __free_object+0x218/0xa70
[ 130.961904][ T4522] ? lockdep_hardirqs_on+0x94/0x140
[ 130.967364][ T4522] ? verify_lock_unused+0x140/0x140
[ 130.973050][ T4522] ? alloc_object+0x640/0x640
[ 130.978656][ T4522] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 130.984939][ T4522] ? lock_chain_count+0x20/0x20
[ 130.990265][ T4522] lock_acquire+0x1bb/0x4a0
[ 130.995785][ T4522] ? finish_wait+0xb8/0x1d0
[ 131.001018][ T4522] ? timer_delete_sync+0x20/0x20
[ 131.005973][ T4522] ? __mod_timer+0x91e/0xd00
[ 131.010682][ T4522] ? read_lock_is_recursive+0x10/0x10
[ 131.016201][ T4522] _raw_spin_lock_irqsave+0xb0/0x100
[ 131.021505][ T4522] ? finish_wait+0xb8/0x1d0
[ 131.026036][ T4522] ? _raw_spin_lock+0x40/0x40
[ 131.030811][ T4522] ? update_process_times+0x1b0/0x1b0
[ 131.036299][ T4522] finish_wait+0xb8/0x1d0
[ 131.041013][ T4522] gfs2_quotad+0x4f3/0x680
[ 131.045632][ T4522] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 131.051740][ T4522] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 131.059866][ T4522] ? wake_bit_function+0x200/0x200
[ 131.065537][ T4522] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 131.071898][ T4522] ? __kthread_parkme+0x162/0x1c0
[ 131.078477][ T4522] kthread+0x29d/0x330
[ 131.082654][ T4522] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 131.088177][ T4522] ? kthread_blkcg+0xd0/0xd0
[ 131.093148][ T4522] ret_from_fork+0x1f/0x30
[ 131.097720][ T4522]
[ 131.100767][ T4522]
[ 131.103446][ T4522] Allocated by task 4518:
[ 131.108559][ T4522] kasan_set_track+0x4b/0x70
[ 131.113866][ T4522] __kasan_kmalloc+0x8e/0xa0
[ 131.119057][ T4522] gfs2_fill_super+0x134/0x1fb0
[ 131.124397][ T4522] get_tree_bdev+0x3f1/0x610
[ 131.129626][ T4522] gfs2_get_tree+0x4d/0x1e0
[ 131.134425][ T4522] vfs_get_tree+0x88/0x270
[ 131.138940][ T4522] do_new_mount+0x24a/0xa40
[ 131.143453][ T4522] __se_sys_mount+0x2e3/0x3d0
[ 131.148658][ T4522] do_syscall_64+0x4c/0xa0
[ 131.153348][ T4522] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 131.159429][ T4522]
[ 131.161761][ T4522] The buggy address belongs to the object at ffff88805a1e4000
[ 131.161761][ T4522] which belongs to the cache kmalloc-8k of size 8192
[ 131.176689][ T4522] The buggy address is located 2992 bytes inside of
[ 131.176689][ T4522] 8192-byte region [ffff88805a1e4000, ffff88805a1e6000)
[ 131.190741][ T4522]
[ 131.193520][ T4522] The buggy address belongs to the physical page:
[ 131.200656][ T4522] page:ffffea0001687800 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff88805a1e4000 pfn:0x5a1e0
[ 131.213594][ T4522] head:ffffea0001687800 order:3 compound_mapcount:0 compound_pincount:0
[ 131.222458][ T4522] flags: 0xfff00000010200(slab|head|node=0|zone=1|lastcpupid=0x7ff)
[ 131.230972][ T4522] raw: 00fff00000010200 0000000000000000 dead000000000001 ffff888017442280
[ 131.239907][ T4522] raw: ffff88805a1e4000 0000000080020001 00000001ffffffff 0000000000000000
[ 131.249195][ T4522] page dumped because: kasan: bad access detected
[ 131.256577][ T4522] page_owner tracks the page as allocated
[ 131.262646][ T4522] page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 4515, tgid 4514 (syz.0.17), ts 94513520512, free_ts 94152822245
[ 131.285994][ T4522] post_alloc_hook+0x173/0x1a0
[ 131.291060][ T4522] get_page_from_freelist+0x1a1e/0x1ab0
[ 131.297461][ T4522] __alloc_pages+0x1ec/0x4f0
[ 131.302148][ T4522] alloc_slab_page+0x5d/0x160
[ 131.306941][ T4522] new_slab+0x87/0x2c0
[ 131.311453][ T4522] ___slab_alloc+0xbc6/0x1240
[ 131.316398][ T4522] __kmem_cache_alloc_node+0x1a0/0x260
[ 131.322393][ T4522] kmalloc_trace+0x26/0xe0
[ 131.326911][ T4522] gfs2_fill_super+0x134/0x1fb0
[ 131.332451][ T4522] get_tree_bdev+0x3f1/0x610
[ 131.337230][ T4522] gfs2_get_tree+0x4d/0x1e0
[ 131.342498][ T4522] vfs_get_tree+0x88/0x270
[ 131.347178][ T4522] do_new_mount+0x24a/0xa40
[ 131.351696][ T4522] __se_sys_mount+0x2e3/0x3d0
[ 131.357384][ T4522] do_syscall_64+0x4c/0xa0
[ 131.362638][ T4522] entry_SYSCALL_64_after_hwframe+0x68/0xd2
[ 131.368912][ T4522] page last free stack trace:
[ 131.373937][ T4522] free_unref_page_prepare+0x8b4/0x9a0
[ 131.380500][ T4522] free_unref_page+0x2e/0x3f0
[ 131.385555][ T4522] __unfreeze_partials+0x1a5/0x200
[ 131.391212][ T4522] put_cpu_partial+0x17c/0x250
[ 131.396337][ T4522] qlist_free_all+0x76/0xe0
[ 131.401022][ T4522] kasan_quarantine_reduce+0x144/0x160
[ 131.406661][ T4522] __kasan_slab_alloc+0x1e/0x80
[ 131.411869][ T4522] slab_post_alloc_hook+0x4b/0x480
[ 131.417173][ T4522] kmem_cache_alloc+0x123/0x2f0
[ 131.422118][ T4522] __anon_vma_prepare+0x64/0x420
[ 131.427505][ T4522] handle_mm_fault+0x3691/0x3ee0
[ 131.433353][ T4522] do_user_addr_fault+0x51f/0xb10
[ 131.438822][ T4522] exc_page_fault+0x60/0x100
[ 131.443547][ T4522] asm_exc_page_fault+0x22/0x30
[ 131.448778][ T4522]
[ 131.451201][ T4522] Memory state around the buggy address:
[ 131.457278][ T4522] ffff88805a1e4a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.465972][ T4522] ffff88805a1e4b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.474913][ T4522] >ffff88805a1e4b80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.483685][ T4522] ^
[ 131.489493][ T4522] ffff88805a1e4c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.498604][ T4522] ffff88805a1e4c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[ 131.506941][ T4522] ==================================================================
[ 131.515634][ T4522] Kernel panic - not syncing: KASAN: panic_on_warn set ...
[ 131.523412][ T4522] CPU: 1 PID: 4522 Comm: gfs2_quotad Not tainted syzkaller #0
[ 131.531490][ T4522] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
[ 131.542079][ T4522] Call Trace:
[ 131.545885][ T4522]
[ 131.548908][ T4522] dump_stack_lvl+0x188/0x24e
[ 131.554130][ T4522] ? memcpy+0x3c/0x60
[ 131.558742][ T4522] ? show_regs_print_info+0x12/0x12
[ 131.564055][ T4522] ? load_image+0x400/0x400
[ 131.568664][ T4522] panic+0x2e5/0x730
[ 131.572762][ T4522] ? __lock_acquire+0x7d10/0x7d10
[ 131.578080][ T4522] ? bpf_jit_dump+0xd0/0xd0
[ 131.582906][ T4522] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 131.589172][ T4522] ? _raw_spin_unlock+0x40/0x40
[ 131.594117][ T4522] check_panic_on_warn+0x80/0xa0
[ 131.599686][ T4522] ? __lock_acquire+0x106/0x7d10
[ 131.604805][ T4522] end_report+0x66/0x110
[ 131.609237][ T4522] kasan_report+0x118/0x140
[ 131.613841][ T4522] ? __lock_acquire+0x106/0x7d10
[ 131.618972][ T4522] __lock_acquire+0x106/0x7d10
[ 131.624501][ T4522] ? verify_lock_unused+0x140/0x140
[ 131.630065][ T4522] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 131.636159][ T4522] ? lock_chain_count+0x20/0x20
[ 131.641209][ T4522] ? __free_object+0x218/0xa70
[ 131.646227][ T4522] ? lockdep_hardirqs_on+0x94/0x140
[ 131.651798][ T4522] ? verify_lock_unused+0x140/0x140
[ 131.657384][ T4522] ? alloc_object+0x640/0x640
[ 131.662335][ T4522] ? lockdep_hardirqs_on_prepare+0x409/0x770
[ 131.668687][ T4522] ? lock_chain_count+0x20/0x20
[ 131.673899][ T4522] lock_acquire+0x1bb/0x4a0
[ 131.679029][ T4522] ? finish_wait+0xb8/0x1d0
[ 131.683752][ T4522] ? timer_delete_sync+0x20/0x20
[ 131.688991][ T4522] ? __mod_timer+0x91e/0xd00
[ 131.693955][ T4522] ? read_lock_is_recursive+0x10/0x10
[ 131.699961][ T4522] _raw_spin_lock_irqsave+0xb0/0x100
[ 131.705514][ T4522] ? finish_wait+0xb8/0x1d0
[ 131.710386][ T4522] ? _raw_spin_lock+0x40/0x40
[ 131.715617][ T4522] ? update_process_times+0x1b0/0x1b0
[ 131.721446][ T4522] finish_wait+0xb8/0x1d0
[ 131.726001][ T4522] gfs2_quotad+0x4f3/0x680
[ 131.730687][ T4522] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 131.736002][ T4522] ? _raw_spin_unlock_irqrestore+0x82/0x120
[ 131.742011][ T4522] ? wake_bit_function+0x200/0x200
[ 131.748107][ T4522] ? _raw_spin_unlock_irqrestore+0xc1/0x120
[ 131.754528][ T4522] ? __kthread_parkme+0x162/0x1c0
[ 131.760027][ T4522] kthread+0x29d/0x330
[ 131.764194][ T4522] ? gfs2_wake_up_statfs+0xc0/0xc0
[ 131.769669][ T4522] ? kthread_blkcg+0xd0/0xd0
[ 131.774451][ T4522] ret_from_fork+0x1f/0x30
[ 131.778880][ T4522]
[ 131.782255][ T4522] Kernel Offset: disabled
[ 131.786578][ T4522] Rebooting in 86400 seconds..