? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 430.873893][ T8223] do_syscall_64+0x15f/0xf80
[ 430.873912][ T8223] ? trace_irq_disable+0x3b/0x140
[ 430.873937][ T8223] ? clear_bhb_loop+0x40/0x90
[ 430.873959][ T8223] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 430.873977][ T8223] RIP: 0033:0x7fcd15ca7be9
[ 430.873995][ T8223] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 430.874011][ T8223] RSP: 002b:00007fcd14f1e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 430.874031][ T8223] RAX: ffffffffffffffda RBX: 00007fcd15e75f80 RCX: 00007fcd15ca7be9
[ 430.874045][ T8223] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 430.874056][ T8223] RBP: 00007fcd15d2b2bf R08: 0000000000000000 R09: 0000000000000000
[ 430.874068][ T8223] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 430.874079][ T8223] R13: 0000000000000000 R14: 00007fcd15e75f80 R15: 00007ffe1c5ecd88
[ 430.874109][ T8223]
[ 430.874116][ T8223] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 430.874201][ T5736] gfs2: fsid=syz:syz.0: file system withdrawn
2026/05/06 19:25:13 executed programs: 386
[ 432.669044][ T8243] loop1: detected capacity change from 0 to 32768
[ 432.691618][ T8243] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 432.691640][ T8243] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 432.807323][ T8239] loop3: detected capacity change from 0 to 32768
[ 432.810316][ T8243] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 432.828122][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 432.828142][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 432.835489][ T8241] loop0: detected capacity change from 0 to 32768
[ 432.843321][ T8239] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 432.843345][ T8239] CPU: 0 UID: 0 PID: 8239 Comm: syz.3.387 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 432.843368][ T8239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 432.843380][ T8239] Call Trace:
[ 432.843388][ T8239]
[ 432.843395][ T8239] dump_stack_lvl+0xe8/0x150
[ 432.843424][ T8239] sysfs_create_dir_ns+0x271/0x2a0
[ 432.843450][ T8239] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 432.843476][ T8239] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 432.843502][ T8239] ? rt_spin_unlock+0x160/0x200
[ 432.843528][ T8239] kobject_add_internal+0x631/0xd10
[ 432.843560][ T8239] kobject_init_and_add+0x12b/0x1a0
[ 432.843588][ T8239] ? __pfx_kobject_init_and_add+0x10/0x10
[ 432.843613][ T8239] ? __raw_spin_lock_init+0x45/0x100
[ 432.843640][ T8239] ? __init_swait_queue_head+0xa9/0x150
[ 432.843670][ T8239] gfs2_sys_fs_add+0x257/0x480
[ 432.843692][ T8239] ? is_dynamic_key+0x1ac/0x1c0
[ 432.843712][ T8239] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 432.843744][ T8239] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 432.843777][ T8239] gfs2_fill_super+0x141c/0x2220
[ 432.843810][ T8239] ? __pfx_gfs2_fill_super+0x10/0x10
[ 432.843828][ T8239] ? rt_spin_unlock+0x14f/0x200
[ 432.843856][ T8239] ? sb_set_blocksize+0x11b/0x210
[ 432.843877][ T8239] ? setup_bdev_super+0x4c1/0x5b0
[ 432.843905][ T8239] get_tree_bdev_flags+0x431/0x4f0
[ 432.843932][ T8239] ? __pfx_gfs2_fill_super+0x10/0x10
[ 432.843951][ T8239] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 432.843975][ T8239] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 432.844009][ T8239] gfs2_get_tree+0x51/0x1e0
[ 432.844031][ T8239] vfs_get_tree+0x92/0x2a0
[ 432.844058][ T8239] do_new_mount+0x341/0xd30
[ 432.844078][ T8239] ? apparmor_capable+0x126/0x170
[ 432.844104][ T8239] ? __pfx_do_new_mount+0x10/0x10
[ 432.844124][ T8239] ? ns_capable+0x89/0xe0
[ 432.844152][ T8239] ? user_path_at+0xd4/0x160
[ 432.844179][ T8239] ? user_path_at+0xd4/0x160
[ 432.844204][ T8239] __se_sys_mount+0x31d/0x420
[ 432.844230][ T8239] ? __pfx___se_sys_mount+0x10/0x10
[ 432.844257][ T8239] ? __x64_sys_mount+0x20/0xc0
[ 432.844284][ T8239] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 432.844304][ T8239] do_syscall_64+0x15f/0xf80
[ 432.844324][ T8239] ? trace_irq_disable+0x3b/0x140
[ 432.844349][ T8239] ? clear_bhb_loop+0x40/0x90
[ 432.844371][ T8239] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 432.844389][ T8239] RIP: 0033:0x7f6c6c118e8a
[ 432.844408][ T8239] 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
[ 432.844425][ T8239] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 432.844445][ T8239] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 432.844459][ T8239] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 432.844471][ T8239] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 432.844484][ T8239] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 432.844497][ T8239] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 432.844525][ T8239]
[ 432.844554][ T8239] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 432.844569][ T8239] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 432.998696][ T8241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 432.998720][ T8241] CPU: 0 UID: 0 PID: 8241 Comm: syz.0.389 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 432.998743][ T8241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 432.998755][ T8241] Call Trace:
[ 432.998762][ T8241]
[ 432.998770][ T8241] dump_stack_lvl+0xe8/0x150
[ 432.998800][ T8241] sysfs_create_dir_ns+0x271/0x2a0
[ 432.998825][ T8241] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 432.998853][ T8241] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 432.998878][ T8241] ? rt_spin_unlock+0x160/0x200
[ 432.998904][ T8241] kobject_add_internal+0x631/0xd10
[ 432.998936][ T8241] kobject_init_and_add+0x12b/0x1a0
[ 432.998965][ T8241] ? __pfx_kobject_init_and_add+0x10/0x10
[ 432.999005][ T8241] ? __raw_spin_lock_init+0x45/0x100
[ 432.999034][ T8241] ? __init_swait_queue_head+0xa9/0x150
[ 432.999064][ T8241] gfs2_sys_fs_add+0x257/0x480
[ 432.999091][ T8241] ? is_dynamic_key+0x1ac/0x1c0
[ 432.999113][ T8241] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 432.999153][ T8241] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 432.999199][ T8241] gfs2_fill_super+0x141c/0x2220
[ 432.999235][ T8241] ? __pfx_gfs2_fill_super+0x10/0x10
[ 432.999260][ T8241] ? rt_spin_unlock+0x14f/0x200
[ 432.999288][ T8241] ? sb_set_blocksize+0x11b/0x210
[ 432.999310][ T8241] ? setup_bdev_super+0x4c1/0x5b0
[ 432.999352][ T8241] get_tree_bdev_flags+0x431/0x4f0
[ 432.999379][ T8241] ? __pfx_gfs2_fill_super+0x10/0x10
[ 432.999397][ T8241] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 432.999421][ T8241] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 432.999456][ T8241] gfs2_get_tree+0x51/0x1e0
[ 432.999479][ T8241] vfs_get_tree+0x92/0x2a0
[ 432.999506][ T8241] do_new_mount+0x341/0xd30
[ 432.999526][ T8241] ? apparmor_capable+0x126/0x170
[ 432.999551][ T8241] ? __pfx_do_new_mount+0x10/0x10
[ 432.999572][ T8241] ? ns_capable+0x89/0xe0
[ 432.999599][ T8241] ? user_path_at+0xd4/0x160
[ 432.999637][ T8241] ? user_path_at+0xd4/0x160
[ 432.999661][ T8241] __se_sys_mount+0x31d/0x420
[ 432.999688][ T8241] ? __pfx___se_sys_mount+0x10/0x10
[ 432.999715][ T8241] ? __x64_sys_mount+0x20/0xc0
[ 432.999736][ T8241] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 432.999755][ T8241] do_syscall_64+0x15f/0xf80
[ 432.999774][ T8241] ? trace_irq_disable+0x3b/0x140
[ 432.999809][ T8241] ? clear_bhb_loop+0x40/0x90
[ 432.999831][ T8241] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 432.999849][ T8241] RIP: 0033:0x7fc5b8848e8a
[ 432.999867][ T8241] 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
[ 432.999882][ T8241] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 432.999902][ T8241] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 432.999916][ T8241] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 432.999927][ T8241] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 432.999937][ T8241] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 432.999947][ T8241] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 432.999972][ T8241]
[ 433.078877][ T8241] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 433.078901][ T8241] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 433.548819][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 720ms
[ 433.557576][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 433.557633][ T8243] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 433.662961][ T8243] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 433.662983][ T8243] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 433.663011][ T8243] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 433.663039][ T8243] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8243 [syz.1.390] iterate_dir+0x3a5/0x580
[ 433.663071][ T8243] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 433.663102][ T8243] CPU: 0 UID: 0 PID: 8243 Comm: syz.1.390 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 433.663123][ T8243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 433.663134][ T8243] Call Trace:
[ 433.663141][ T8243]
[ 433.663149][ T8243] dump_stack_lvl+0xe8/0x150
[ 433.663176][ T8243] gfs2_withdraw+0xc3/0x1b0
[ 433.663197][ T8243] gfs2_dirent_scan+0x545/0x690
[ 433.663219][ T8243] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 433.663241][ T8243] gfs2_dir_read+0x78e/0x1760
[ 433.663267][ T8243] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 433.663293][ T8243] ? __pfx_inode_dio_wait+0x10/0x10
[ 433.663325][ T8243] ? __pfx_gfs2_dir_read+0x10/0x10
[ 433.663357][ T8243] ? gfs2_glock_wait+0x212/0x2a0
[ 433.663380][ T8243] gfs2_readdir+0x16c/0x1e0
[ 433.663400][ T8243] ? __pfx_gfs2_readdir+0x10/0x10
[ 433.663416][ T8243] ? down_read_killable+0x14c/0x220
[ 433.663441][ T8243] ? iterate_dir+0x3a5/0x580
[ 433.663459][ T8243] ? apparmor_file_permission+0x1f4/0x300
[ 433.663496][ T8243] iterate_dir+0x3a5/0x580
[ 433.663519][ T8243] __se_sys_getdents+0xf1/0x270
[ 433.663540][ T8243] ? __pfx___se_sys_getdents+0x10/0x10
[ 433.663557][ T8243] ? __pfx_filldir+0x10/0x10
[ 433.663576][ T8243] ? rcu_is_watching+0x15/0xb0
[ 433.663606][ T8243] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 433.663626][ T8243] do_syscall_64+0x15f/0xf80
[ 433.663645][ T8243] ? trace_irq_disable+0x3b/0x140
[ 433.663672][ T8243] ? clear_bhb_loop+0x40/0x90
[ 433.663694][ T8243] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 433.663711][ T8243] RIP: 0033:0x7f29bbb27be9
[ 433.663728][ T8243] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 433.663745][ T8243] RSP: 002b:00007f29bad9e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 433.663765][ T8243] RAX: ffffffffffffffda RBX: 00007f29bbcf5f80 RCX: 00007f29bbb27be9
[ 433.663779][ T8243] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 433.663790][ T8243] RBP: 00007f29bbbab2bf R08: 0000000000000000 R09: 0000000000000000
[ 433.663802][ T8243] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 433.663812][ T8243] R13: 0000000000000000 R14: 00007f29bbcf5f80 R15: 00007fff9ed85498
[ 433.663841][ T8243]
[ 433.684896][ T8243] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 433.686757][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 434.091531][ T8245] loop4: detected capacity change from 0 to 32768
[ 434.127471][ T8245] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 434.127490][ T8245] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 434.263152][ T8245] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 434.306654][ T5724] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 434.306674][ T5724] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 434.464470][ T5724] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 157ms
[ 434.464742][ T5724] gfs2: fsid=syz:syz.0: jid=0: Done
[ 434.464798][ T8245] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 434.579373][ T8245] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 434.579395][ T8245] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 434.579424][ T8245] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 434.579453][ T8245] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8245 [syz.4.391] iterate_dir+0x3a5/0x580
[ 434.579485][ T8245] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 434.579581][ T8245] CPU: 1 UID: 0 PID: 8245 Comm: syz.4.391 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 434.579603][ T8245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 434.579615][ T8245] Call Trace:
[ 434.579623][ T8245]
[ 434.579631][ T8245] dump_stack_lvl+0xe8/0x150
[ 434.579658][ T8245] gfs2_withdraw+0xc3/0x1b0
[ 434.579681][ T8245] gfs2_dirent_scan+0x545/0x690
[ 434.579704][ T8245] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 434.579736][ T8245] gfs2_dir_read+0x78e/0x1760
[ 434.579762][ T8245] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 434.579788][ T8245] ? __pfx_inode_dio_wait+0x10/0x10
[ 434.579821][ T8245] ? __pfx_gfs2_dir_read+0x10/0x10
[ 434.579854][ T8245] ? gfs2_glock_wait+0x212/0x2a0
[ 434.579879][ T8245] gfs2_readdir+0x16c/0x1e0
[ 434.579911][ T8245] ? __pfx_gfs2_readdir+0x10/0x10
[ 434.579927][ T8245] ? down_read_killable+0x14c/0x220
[ 434.579951][ T8245] ? iterate_dir+0x3a5/0x580
[ 434.579969][ T8245] ? apparmor_file_permission+0x1f4/0x300
[ 434.580001][ T8245] iterate_dir+0x3a5/0x580
[ 434.580022][ T8245] __se_sys_getdents+0xf1/0x270
[ 434.580045][ T8245] ? __pfx___se_sys_getdents+0x10/0x10
[ 434.580063][ T8245] ? __pfx_filldir+0x10/0x10
[ 434.580082][ T8245] ? rcu_is_watching+0x15/0xb0
[ 434.580121][ T8245] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 434.580141][ T8245] do_syscall_64+0x15f/0xf80
[ 434.580161][ T8245] ? trace_irq_disable+0x3b/0x140
[ 434.580185][ T8245] ? clear_bhb_loop+0x40/0x90
[ 434.580205][ T8245] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 434.580221][ T8245] RIP: 0033:0x7ffa32017be9
[ 434.580236][ T8245] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 434.580252][ T8245] RSP: 002b:00007ffa3128e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 434.580270][ T8245] RAX: ffffffffffffffda RBX: 00007ffa321e5f80 RCX: 00007ffa32017be9
[ 434.580284][ T8245] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 434.580294][ T8245] RBP: 00007ffa3209b2bf R08: 0000000000000000 R09: 0000000000000000
[ 434.580306][ T8245] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 434.580318][ T8245] R13: 0000000000000000 R14: 00007ffa321e5f80 R15: 00007ffd4ce3e7d8
[ 434.580345][ T8245]
[ 434.584082][ T8245] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 434.584158][ T5724] gfs2: fsid=syz:syz.0: file system withdrawn
[ 435.566847][ T8255] loop3: detected capacity change from 0 to 32768
[ 435.609314][ T8255] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 435.609334][ T8255] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 435.705474][ T8255] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 435.728671][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 435.728692][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 436.051953][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 323ms
[ 436.052224][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 436.054314][ T8255] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 436.086434][ T8255] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 436.086456][ T8255] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 436.086485][ T8255] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 436.086514][ T8255] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8255 [syz.3.392] iterate_dir+0x3a5/0x580
[ 436.086546][ T8255] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 436.086573][ T8255] CPU: 0 UID: 0 PID: 8255 Comm: syz.3.392 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 436.086595][ T8255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 436.086606][ T8255] Call Trace:
[ 436.086614][ T8255]
[ 436.086623][ T8255] dump_stack_lvl+0xe8/0x150
[ 436.086649][ T8255] gfs2_withdraw+0xc3/0x1b0
[ 436.086672][ T8255] gfs2_dirent_scan+0x545/0x690
[ 436.086695][ T8255] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 436.086720][ T8255] gfs2_dir_read+0x78e/0x1760
[ 436.086746][ T8255] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 436.086774][ T8255] ? __pfx_inode_dio_wait+0x10/0x10
[ 436.086806][ T8255] ? __pfx_gfs2_dir_read+0x10/0x10
[ 436.086837][ T8255] ? gfs2_glock_wait+0x212/0x2a0
[ 436.086860][ T8255] gfs2_readdir+0x16c/0x1e0
[ 436.086880][ T8255] ? __pfx_gfs2_readdir+0x10/0x10
[ 436.086896][ T8255] ? down_read_killable+0x14c/0x220
[ 436.086924][ T8255] ? iterate_dir+0x3a5/0x580
[ 436.086943][ T8255] ? apparmor_file_permission+0x1f4/0x300
[ 436.086983][ T8255] iterate_dir+0x3a5/0x580
[ 436.087007][ T8255] __se_sys_getdents+0xf1/0x270
[ 436.087029][ T8255] ? __pfx___se_sys_getdents+0x10/0x10
[ 436.087046][ T8255] ? __pfx_filldir+0x10/0x10
[ 436.087066][ T8255] ? rcu_is_watching+0x15/0xb0
[ 436.087098][ T8255] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.087118][ T8255] do_syscall_64+0x15f/0xf80
[ 436.087139][ T8255] ? trace_irq_disable+0x3b/0x140
[ 436.087166][ T8255] ? clear_bhb_loop+0x40/0x90
[ 436.087189][ T8255] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.087208][ T8255] RIP: 0033:0x7f6c6c117be9
[ 436.087225][ T8255] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 436.087242][ T8255] RSP: 002b:00007f6c6b38e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 436.087262][ T8255] RAX: ffffffffffffffda RBX: 00007f6c6c2e5f80 RCX: 00007f6c6c117be9
[ 436.087276][ T8255] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 436.087288][ T8255] RBP: 00007f6c6c19b2bf R08: 0000000000000000 R09: 0000000000000000
[ 436.087301][ T8255] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 436.087312][ T8255] R13: 0000000000000000 R14: 00007f6c6c2e5f80 R15: 00007ffcf9862bf8
[ 436.087343][ T8255]
[ 436.087361][ T8255] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 436.090751][ T5736] gfs2: fsid=syz:syz.0: file system withdrawn
[ 436.211400][ T8257] loop0: detected capacity change from 0 to 32768
[ 436.218876][ T8257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 436.218899][ T8257] CPU: 0 UID: 0 PID: 8257 Comm: syz.0.393 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 436.218922][ T8257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 436.218933][ T8257] Call Trace:
[ 436.218941][ T8257]
[ 436.218949][ T8257] dump_stack_lvl+0xe8/0x150
[ 436.218978][ T8257] sysfs_create_dir_ns+0x271/0x2a0
[ 436.219001][ T8257] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 436.219033][ T8257] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 436.219059][ T8257] ? rt_spin_unlock+0x160/0x200
[ 436.219084][ T8257] kobject_add_internal+0x631/0xd10
[ 436.219115][ T8257] kobject_init_and_add+0x12b/0x1a0
[ 436.219145][ T8257] ? __pfx_kobject_init_and_add+0x10/0x10
[ 436.219170][ T8257] ? __raw_spin_lock_init+0x45/0x100
[ 436.219198][ T8257] ? __init_swait_queue_head+0xa9/0x150
[ 436.219235][ T8257] gfs2_sys_fs_add+0x257/0x480
[ 436.219259][ T8257] ? is_dynamic_key+0x1ac/0x1c0
[ 436.219279][ T8257] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 436.219311][ T8257] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 436.219344][ T8257] gfs2_fill_super+0x141c/0x2220
[ 436.219377][ T8257] ? __pfx_gfs2_fill_super+0x10/0x10
[ 436.219395][ T8257] ? rt_spin_unlock+0x14f/0x200
[ 436.219423][ T8257] ? sb_set_blocksize+0x11b/0x210
[ 436.219444][ T8257] ? setup_bdev_super+0x4c1/0x5b0
[ 436.219473][ T8257] get_tree_bdev_flags+0x431/0x4f0
[ 436.219499][ T8257] ? __pfx_gfs2_fill_super+0x10/0x10
[ 436.219518][ T8257] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 436.219542][ T8257] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 436.219577][ T8257] gfs2_get_tree+0x51/0x1e0
[ 436.219599][ T8257] vfs_get_tree+0x92/0x2a0
[ 436.219627][ T8257] do_new_mount+0x341/0xd30
[ 436.219646][ T8257] ? apparmor_capable+0x126/0x170
[ 436.219674][ T8257] ? __pfx_do_new_mount+0x10/0x10
[ 436.219695][ T8257] ? ns_capable+0x89/0xe0
[ 436.219723][ T8257] ? user_path_at+0xd4/0x160
[ 436.219749][ T8257] ? user_path_at+0xd4/0x160
[ 436.219775][ T8257] __se_sys_mount+0x31d/0x420
[ 436.219801][ T8257] ? __pfx___se_sys_mount+0x10/0x10
[ 436.219827][ T8257] ? __x64_sys_mount+0x20/0xc0
[ 436.219848][ T8257] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.219868][ T8257] do_syscall_64+0x15f/0xf80
[ 436.219892][ T8257] ? trace_irq_disable+0x3b/0x140
[ 436.219919][ T8257] ? clear_bhb_loop+0x40/0x90
[ 436.219941][ T8257] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 436.219959][ T8257] RIP: 0033:0x7fc5b8848e8a
[ 436.219977][ T8257] 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
[ 436.219993][ T8257] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 436.220014][ T8257] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 436.220027][ T8257] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 436.220039][ T8257] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 436.220052][ T8257] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 436.220064][ T8257] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 436.220092][ T8257]
[ 436.227885][ T8257] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 436.227906][ T8257] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 436.973565][ T8261] loop1: detected capacity change from 0 to 32768
[ 437.141342][ T8261] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 437.141386][ T8261] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 437.261912][ T8263] loop4: detected capacity change from 0 to 32768
[ 437.264727][ T8261] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 437.277014][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 437.277033][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 437.283725][ T8263] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 437.283748][ T8263] CPU: 0 UID: 0 PID: 8263 Comm: syz.4.395 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 437.283770][ T8263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 437.283782][ T8263] Call Trace:
[ 437.283789][ T8263]
[ 437.283798][ T8263] dump_stack_lvl+0xe8/0x150
[ 437.283828][ T8263] sysfs_create_dir_ns+0x271/0x2a0
[ 437.283852][ T8263] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 437.283879][ T8263] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 437.283905][ T8263] ? rt_spin_unlock+0x160/0x200
[ 437.283932][ T8263] kobject_add_internal+0x631/0xd10
[ 437.283962][ T8263] kobject_init_and_add+0x12b/0x1a0
[ 437.283991][ T8263] ? __pfx_kobject_init_and_add+0x10/0x10
[ 437.284016][ T8263] ? __raw_spin_lock_init+0x45/0x100
[ 437.284043][ T8263] ? __init_swait_queue_head+0xa9/0x150
[ 437.284073][ T8263] gfs2_sys_fs_add+0x257/0x480
[ 437.284097][ T8263] ? is_dynamic_key+0x1ac/0x1c0
[ 437.284117][ T8263] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 437.284149][ T8263] ? __pfx_alloc_workqueue_noprof+0x10/0x10
2026/05/06 19:25:19 executed programs: 394
[ 437.284187][ T8263] gfs2_fill_super+0x141c/0x2220
[ 437.284222][ T8263] ? __pfx_gfs2_fill_super+0x10/0x10
[ 437.284240][ T8263] ? rt_spin_unlock+0x14f/0x200
[ 437.284267][ T8263] ? sb_set_blocksize+0x11b/0x210
[ 437.284288][ T8263] ? setup_bdev_super+0x4c1/0x5b0
[ 437.284318][ T8263] get_tree_bdev_flags+0x431/0x4f0
[ 437.284345][ T8263] ? __pfx_gfs2_fill_super+0x10/0x10
[ 437.284364][ T8263] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 437.284387][ T8263] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 437.284423][ T8263] gfs2_get_tree+0x51/0x1e0
[ 437.284445][ T8263] vfs_get_tree+0x92/0x2a0
[ 437.284473][ T8263] do_new_mount+0x341/0xd30
[ 437.284492][ T8263] ? apparmor_capable+0x126/0x170
[ 437.284519][ T8263] ? __pfx_do_new_mount+0x10/0x10
[ 437.284540][ T8263] ? ns_capable+0x89/0xe0
[ 437.284567][ T8263] ? user_path_at+0xd4/0x160
[ 437.284592][ T8263] ? user_path_at+0xd4/0x160
[ 437.284614][ T8263] __se_sys_mount+0x31d/0x420
[ 437.284639][ T8263] ? __pfx___se_sys_mount+0x10/0x10
[ 437.284666][ T8263] ? __x64_sys_mount+0x20/0xc0
[ 437.284686][ T8263] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 437.284704][ T8263] do_syscall_64+0x15f/0xf80
[ 437.284722][ T8263] ? trace_irq_disable+0x3b/0x140
[ 437.284749][ T8263] ? clear_bhb_loop+0x40/0x90
[ 437.284772][ T8263] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 437.284790][ T8263] RIP: 0033:0x7ffa32018e8a
[ 437.284809][ T8263] 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
[ 437.284824][ T8263] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 437.284844][ T8263] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 437.284858][ T8263] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 437.284871][ T8263] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 437.284891][ T8263] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 437.284904][ T8263] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 437.284934][ T8263]
[ 437.284971][ T8263] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 437.284987][ T8263] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 437.822255][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 545ms
[ 437.826376][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 437.826488][ T8261] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 438.850561][ T8279] loop4: detected capacity change from 0 to 32768
[ 438.862515][ T8271] loop0: detected capacity change from 0 to 32768
[ 438.886467][ T8271] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 438.886488][ T8271] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 438.886637][ T8279] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 438.886652][ T8279] CPU: 0 UID: 0 PID: 8279 Comm: syz.4.399 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 438.886670][ T8279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 438.886691][ T8279] Call Trace:
[ 438.886697][ T8279]
[ 438.886704][ T8279] dump_stack_lvl+0xe8/0x150
[ 438.886729][ T8279] sysfs_create_dir_ns+0x271/0x2a0
[ 438.886749][ T8279] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 438.886772][ T8279] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 438.886792][ T8279] ? rt_spin_unlock+0x160/0x200
[ 438.886817][ T8279] kobject_add_internal+0x631/0xd10
[ 438.886843][ T8279] kobject_init_and_add+0x12b/0x1a0
[ 438.886868][ T8279] ? __pfx_kobject_init_and_add+0x10/0x10
[ 438.886890][ T8279] ? __raw_spin_lock_init+0x45/0x100
[ 438.886910][ T8279] ? __init_swait_queue_head+0xa9/0x150
[ 438.886938][ T8279] gfs2_sys_fs_add+0x257/0x480
[ 438.886956][ T8279] ? is_dynamic_key+0x1ac/0x1c0
[ 438.886970][ T8279] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 438.886993][ T8279] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 438.887018][ T8279] gfs2_fill_super+0x141c/0x2220
[ 438.887046][ T8279] ? __pfx_gfs2_fill_super+0x10/0x10
[ 438.887059][ T8279] ? rt_spin_unlock+0x14f/0x200
[ 438.887080][ T8279] ? sb_set_blocksize+0x11b/0x210
[ 438.887097][ T8279] ? setup_bdev_super+0x4c1/0x5b0
[ 438.887119][ T8279] get_tree_bdev_flags+0x431/0x4f0
[ 438.887139][ T8279] ? __pfx_gfs2_fill_super+0x10/0x10
[ 438.887154][ T8279] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 438.887172][ T8279] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 438.887199][ T8279] gfs2_get_tree+0x51/0x1e0
[ 438.887216][ T8279] vfs_get_tree+0x92/0x2a0
[ 438.887238][ T8279] do_new_mount+0x341/0xd30
[ 438.887253][ T8279] ? apparmor_capable+0x126/0x170
[ 438.887274][ T8279] ? __pfx_do_new_mount+0x10/0x10
[ 438.887291][ T8279] ? ns_capable+0x89/0xe0
[ 438.887314][ T8279] ? user_path_at+0xd4/0x160
[ 438.887335][ T8279] ? user_path_at+0xd4/0x160
[ 438.887355][ T8279] __se_sys_mount+0x31d/0x420
[ 438.887376][ T8279] ? __pfx___se_sys_mount+0x10/0x10
[ 438.887397][ T8279] ? __x64_sys_mount+0x20/0xc0
[ 438.887414][ T8279] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 438.887430][ T8279] do_syscall_64+0x15f/0xf80
[ 438.887446][ T8279] ? trace_irq_disable+0x3b/0x140
[ 438.887465][ T8279] ? clear_bhb_loop+0x40/0x90
[ 438.887481][ T8279] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 438.887495][ T8279] RIP: 0033:0x7ffa32018e8a
[ 438.887510][ T8279] 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
[ 438.887522][ T8279] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 438.887537][ T8279] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 438.887548][ T8279] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 438.887557][ T8279] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 438.887567][ T8279] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 438.887577][ T8279] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 438.887607][ T8279]
[ 438.897119][ T8279] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 438.897140][ T8279] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 439.327515][ T8271] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 439.436272][ T5342] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 439.436291][ T5342] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 439.773578][ T8275] loop3: detected capacity change from 0 to 32768
[ 439.810391][ T5342] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 374ms
[ 439.810623][ T5342] gfs2: fsid=syz:syz.0: jid=0: Done
[ 439.810728][ T8271] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 439.815398][ T8275] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 439.815421][ T8275] CPU: 0 UID: 0 PID: 8275 Comm: syz.3.397 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 439.815442][ T8275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 439.815453][ T8275] Call Trace:
[ 439.815461][ T8275]
[ 439.815470][ T8275] dump_stack_lvl+0xe8/0x150
[ 439.815499][ T8275] sysfs_create_dir_ns+0x271/0x2a0
[ 439.815525][ T8275] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 439.815554][ T8275] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 439.815579][ T8275] ? rt_spin_unlock+0x160/0x200
[ 439.815637][ T8275] kobject_add_internal+0x631/0xd10
[ 439.815667][ T8275] kobject_init_and_add+0x12b/0x1a0
[ 439.815714][ T8275] ? __pfx_kobject_init_and_add+0x10/0x10
[ 439.815739][ T8275] ? __raw_spin_lock_init+0x45/0x100
[ 439.815766][ T8275] ? __init_swait_queue_head+0xa9/0x150
[ 439.815795][ T8275] gfs2_sys_fs_add+0x257/0x480
[ 439.815819][ T8275] ? is_dynamic_key+0x1ac/0x1c0
[ 439.815839][ T8275] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 439.815872][ T8275] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 439.815914][ T8275] gfs2_fill_super+0x141c/0x2220
[ 439.815949][ T8275] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.815967][ T8275] ? rt_spin_unlock+0x14f/0x200
[ 439.815995][ T8275] ? sb_set_blocksize+0x11b/0x210
[ 439.816017][ T8275] ? setup_bdev_super+0x4c1/0x5b0
[ 439.816048][ T8275] get_tree_bdev_flags+0x431/0x4f0
[ 439.816075][ T8275] ? __pfx_gfs2_fill_super+0x10/0x10
[ 439.816094][ T8275] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 439.816117][ T8275] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 439.816153][ T8275] gfs2_get_tree+0x51/0x1e0
[ 439.816177][ T8275] vfs_get_tree+0x92/0x2a0
[ 439.816207][ T8275] do_new_mount+0x341/0xd30
[ 439.816226][ T8275] ? apparmor_capable+0x126/0x170
[ 439.816253][ T8275] ? __pfx_do_new_mount+0x10/0x10
[ 439.816273][ T8275] ? ns_capable+0x89/0xe0
[ 439.816303][ T8275] ? user_path_at+0xd4/0x160
[ 439.816330][ T8275] ? user_path_at+0xd4/0x160
[ 439.816355][ T8275] __se_sys_mount+0x31d/0x420
[ 439.816381][ T8275] ? __pfx___se_sys_mount+0x10/0x10
[ 439.816408][ T8275] ? __x64_sys_mount+0x20/0xc0
[ 439.816429][ T8275] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.816449][ T8275] do_syscall_64+0x15f/0xf80
[ 439.816469][ T8275] ? trace_irq_disable+0x3b/0x140
[ 439.816515][ T8275] ? clear_bhb_loop+0x40/0x90
[ 439.816537][ T8275] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 439.816555][ T8275] RIP: 0033:0x7f6c6c118e8a
[ 439.816574][ T8275] 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
[ 439.816590][ T8275] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 439.816611][ T8275] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 439.816625][ T8275] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 439.816637][ T8275] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 439.816650][ T8275] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 439.816662][ T8275] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 439.816690][ T8275]
[ 439.824122][ T8275] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 439.824146][ T8275] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 440.150312][ T8281] loop1: detected capacity change from 0 to 32768
[ 440.287183][ T8281] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 440.287279][ T8281] CPU: 0 UID: 0 PID: 8281 Comm: syz.1.400 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 440.287302][ T8281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 440.287314][ T8281] Call Trace:
[ 440.287321][ T8281]
[ 440.287330][ T8281] dump_stack_lvl+0xe8/0x150
[ 440.287358][ T8281] sysfs_create_dir_ns+0x271/0x2a0
[ 440.287380][ T8281] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 440.287404][ T8281] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 440.287431][ T8281] ? rt_spin_unlock+0x160/0x200
[ 440.287457][ T8281] kobject_add_internal+0x631/0xd10
[ 440.287489][ T8281] kobject_init_and_add+0x12b/0x1a0
[ 440.287517][ T8281] ? __pfx_kobject_init_and_add+0x10/0x10
[ 440.287541][ T8281] ? __raw_spin_lock_init+0x45/0x100
[ 440.287568][ T8281] ? __init_swait_queue_head+0xa9/0x150
[ 440.287597][ T8281] gfs2_sys_fs_add+0x257/0x480
[ 440.287620][ T8281] ? is_dynamic_key+0x1ac/0x1c0
[ 440.287641][ T8281] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 440.287675][ T8281] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 440.287707][ T8281] gfs2_fill_super+0x141c/0x2220
[ 440.287742][ T8281] ? __pfx_gfs2_fill_super+0x10/0x10
[ 440.287758][ T8281] ? rt_spin_unlock+0x14f/0x200
[ 440.287785][ T8281] ? sb_set_blocksize+0x11b/0x210
[ 440.287804][ T8281] ? setup_bdev_super+0x4c1/0x5b0
[ 440.287844][ T8281] get_tree_bdev_flags+0x431/0x4f0
[ 440.287878][ T8281] ? __pfx_gfs2_fill_super+0x10/0x10
[ 440.287897][ T8281] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 440.287922][ T8281] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 440.287959][ T8281] gfs2_get_tree+0x51/0x1e0
[ 440.287983][ T8281] vfs_get_tree+0x92/0x2a0
[ 440.288011][ T8281] do_new_mount+0x341/0xd30
[ 440.288033][ T8281] ? apparmor_capable+0x126/0x170
[ 440.288061][ T8281] ? __pfx_do_new_mount+0x10/0x10
[ 440.288084][ T8281] ? ns_capable+0x89/0xe0
[ 440.288112][ T8281] ? user_path_at+0xd4/0x160
[ 440.288140][ T8281] ? user_path_at+0xd4/0x160
[ 440.288166][ T8281] __se_sys_mount+0x31d/0x420
[ 440.288193][ T8281] ? __pfx___se_sys_mount+0x10/0x10
[ 440.288222][ T8281] ? __x64_sys_mount+0x20/0xc0
[ 440.288249][ T8281] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 440.288271][ T8281] do_syscall_64+0x15f/0xf80
[ 440.288291][ T8281] ? trace_irq_disable+0x3b/0x140
[ 440.288317][ T8281] ? clear_bhb_loop+0x40/0x90
[ 440.288341][ T8281] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 440.288359][ T8281] RIP: 0033:0x7f29bbb28e8a
[ 440.288378][ T8281] 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
[ 440.288394][ T8281] RSP: 002b:00007f29bad9de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 440.288415][ T8281] RAX: ffffffffffffffda RBX: 00007f29bad9dee0 RCX: 00007f29bbb28e8a
[ 440.288428][ T8281] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29bad9dea0
[ 440.288440][ T8281] RBP: 0000000020000000 R08: 00007f29bad9dee0 R09: 0000000000208c1b
[ 440.288450][ T8281] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 440.288462][ T8281] R13: 00007f29bad9dea0 R14: 0000000000012752 R15: 0000000020013100
[ 440.288489][ T8281]
[ 440.290955][ T8281] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 440.290977][ T8281] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 440.356129][ T1336] ieee802154 phy0 wpan0: encryption failed: -22
[ 440.356237][ T1336] ieee802154 phy1 wpan1: encryption failed: -22
[ 441.719760][ T8287] loop2: detected capacity change from 0 to 32768
[ 441.736119][ T8287] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 441.736138][ T8287] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 441.796438][ T8287] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 441.810659][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 441.810681][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 441.914264][ T8289] loop4: detected capacity change from 0 to 32768
[ 441.971243][ T8289] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 441.971269][ T8289] CPU: 0 UID: 0 PID: 8289 Comm: syz.4.401 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 441.971291][ T8289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 441.971303][ T8289] Call Trace:
[ 441.971311][ T8289]
[ 441.971319][ T8289] dump_stack_lvl+0xe8/0x150
[ 441.971350][ T8289] sysfs_create_dir_ns+0x271/0x2a0
[ 441.971377][ T8289] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 441.971405][ T8289] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 441.971432][ T8289] ? rt_spin_unlock+0x160/0x200
[ 441.971473][ T8289] kobject_add_internal+0x631/0xd10
[ 441.971507][ T8289] kobject_init_and_add+0x12b/0x1a0
[ 441.971538][ T8289] ? __pfx_kobject_init_and_add+0x10/0x10
[ 441.971565][ T8289] ? __raw_spin_lock_init+0x45/0x100
[ 441.971594][ T8289] ? __init_swait_queue_head+0xa9/0x150
[ 441.971626][ T8289] gfs2_sys_fs_add+0x257/0x480
[ 441.971651][ T8289] ? is_dynamic_key+0x1ac/0x1c0
[ 441.971673][ T8289] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 441.971704][ T8289] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 441.971738][ T8289] gfs2_fill_super+0x141c/0x2220
[ 441.971771][ T8289] ? __pfx_gfs2_fill_super+0x10/0x10
[ 441.971785][ T8289] ? rt_spin_unlock+0x14f/0x200
[ 441.971809][ T8289] ? sb_set_blocksize+0x11b/0x210
[ 441.971841][ T8289] ? setup_bdev_super+0x4c1/0x5b0
[ 441.971871][ T8289] get_tree_bdev_flags+0x431/0x4f0
[ 441.971899][ T8289] ? __pfx_gfs2_fill_super+0x10/0x10
[ 441.971920][ T8289] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 441.971945][ T8289] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 441.971981][ T8289] gfs2_get_tree+0x51/0x1e0
[ 441.972004][ T8289] vfs_get_tree+0x92/0x2a0
[ 441.972033][ T8289] do_new_mount+0x341/0xd30
[ 441.972054][ T8289] ? apparmor_capable+0x126/0x170
[ 441.972080][ T8289] ? __pfx_do_new_mount+0x10/0x10
[ 441.972102][ T8289] ? ns_capable+0x89/0xe0
[ 441.972132][ T8289] ? user_path_at+0xd4/0x160
[ 441.972160][ T8289] ? user_path_at+0xd4/0x160
[ 441.972186][ T8289] __se_sys_mount+0x31d/0x420
[ 441.972216][ T8289] ? __pfx___se_sys_mount+0x10/0x10
[ 441.972244][ T8289] ? __x64_sys_mount+0x20/0xc0
[ 441.972265][ T8289] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 441.972286][ T8289] do_syscall_64+0x15f/0xf80
[ 441.972307][ T8289] ? trace_irq_disable+0x3b/0x140
[ 441.972334][ T8289] ? clear_bhb_loop+0x40/0x90
[ 441.972357][ T8289] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 441.972377][ T8289] RIP: 0033:0x7ffa32018e8a
[ 441.972396][ T8289] 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
[ 441.972412][ T8289] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 441.972433][ T8289] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 441.972448][ T8289] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 441.972469][ T8289] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 441.972483][ T8289] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 441.972499][ T8289] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 441.972529][ T8289]
[ 441.976148][ T8289] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 441.976170][ T8289] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 442.423194][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 612ms
[ 442.423466][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 442.425075][ T8287] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 442.542354][ T8287] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 442.542376][ T8287] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 442.542421][ T8287] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 442.542451][ T8287] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8287 [syz.2.402] iterate_dir+0x3a5/0x580
[ 442.542483][ T8287] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 442.542511][ T8287] CPU: 1 UID: 0 PID: 8287 Comm: syz.2.402 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 442.542531][ T8287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 442.542542][ T8287] Call Trace:
[ 442.542550][ T8287]
[ 442.542558][ T8287] dump_stack_lvl+0xe8/0x150
[ 442.542584][ T8287] gfs2_withdraw+0xc3/0x1b0
[ 442.542606][ T8287] gfs2_dirent_scan+0x545/0x690
[ 442.542628][ T8287] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 442.542650][ T8287] gfs2_dir_read+0x78e/0x1760
[ 442.542673][ T8287] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 442.542700][ T8287] ? __pfx_inode_dio_wait+0x10/0x10
[ 442.542733][ T8287] ? __pfx_gfs2_dir_read+0x10/0x10
[ 442.542765][ T8287] ? gfs2_glock_wait+0x212/0x2a0
[ 442.542790][ T8287] gfs2_readdir+0x16c/0x1e0
[ 442.542812][ T8287] ? __pfx_gfs2_readdir+0x10/0x10
[ 442.542828][ T8287] ? down_read_killable+0x14c/0x220
[ 442.542853][ T8287] ? iterate_dir+0x3a5/0x580
[ 442.542872][ T8287] ? apparmor_file_permission+0x1f4/0x300
2026/05/06 19:25:24 executed programs: 402
[ 442.542903][ T8287] iterate_dir+0x3a5/0x580
[ 442.542928][ T8287] __se_sys_getdents+0xf1/0x270
[ 442.542950][ T8287] ? __pfx___se_sys_getdents+0x10/0x10
[ 442.542968][ T8287] ? __pfx_filldir+0x10/0x10
[ 442.542988][ T8287] ? rcu_is_watching+0x15/0xb0
[ 442.543020][ T8287] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.543041][ T8287] do_syscall_64+0x15f/0xf80
[ 442.543062][ T8287] ? trace_irq_disable+0x3b/0x140
[ 442.543089][ T8287] ? clear_bhb_loop+0x40/0x90
[ 442.543113][ T8287] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 442.543131][ T8287] RIP: 0033:0x7fcd15ca7be9
[ 442.543162][ T8287] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 442.543178][ T8287] RSP: 002b:00007fcd14f1e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 442.543198][ T8287] RAX: ffffffffffffffda RBX: 00007fcd15e75f80 RCX: 00007fcd15ca7be9
[ 442.543213][ T8287] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 442.543225][ T8287] RBP: 00007fcd15d2b2bf R08: 0000000000000000 R09: 0000000000000000
[ 442.543237][ T8287] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 442.543248][ T8287] R13: 0000000000000000 R14: 00007fcd15e75f80 R15: 00007ffe1c5ecd88
[ 442.543278][ T8287]
[ 442.543286][ T8287] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 442.794401][ T6186] gfs2: fsid=syz:syz.0: file system withdrawn
[ 443.314688][ T8297] loop1: detected capacity change from 0 to 32768
[ 443.352933][ T8297] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 443.352953][ T8297] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 443.428884][ T8299] loop0: detected capacity change from 0 to 32768
[ 443.455594][ T8297] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 443.457843][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 443.457861][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 443.468211][ T8299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 443.468236][ T8299] CPU: 0 UID: 0 PID: 8299 Comm: syz.0.404 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 443.468258][ T8299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 443.468269][ T8299] Call Trace:
[ 443.468277][ T8299]
[ 443.468285][ T8299] dump_stack_lvl+0xe8/0x150
[ 443.468317][ T8299] sysfs_create_dir_ns+0x271/0x2a0
[ 443.468341][ T8299] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 443.468378][ T8299] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 443.468404][ T8299] ? rt_spin_unlock+0x160/0x200
[ 443.468432][ T8299] kobject_add_internal+0x631/0xd10
[ 443.468463][ T8299] kobject_init_and_add+0x12b/0x1a0
[ 443.468492][ T8299] ? __pfx_kobject_init_and_add+0x10/0x10
[ 443.468517][ T8299] ? __raw_spin_lock_init+0x45/0x100
[ 443.468545][ T8299] ? __init_swait_queue_head+0xa9/0x150
[ 443.468574][ T8299] gfs2_sys_fs_add+0x257/0x480
[ 443.468597][ T8299] ? is_dynamic_key+0x1ac/0x1c0
[ 443.468617][ T8299] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 443.468649][ T8299] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 443.468681][ T8299] gfs2_fill_super+0x141c/0x2220
[ 443.468715][ T8299] ? __pfx_gfs2_fill_super+0x10/0x10
[ 443.468733][ T8299] ? rt_spin_unlock+0x14f/0x200
[ 443.468761][ T8299] ? sb_set_blocksize+0x11b/0x210
[ 443.468782][ T8299] ? setup_bdev_super+0x4c1/0x5b0
[ 443.468810][ T8299] get_tree_bdev_flags+0x431/0x4f0
[ 443.468837][ T8299] ? __pfx_gfs2_fill_super+0x10/0x10
[ 443.468856][ T8299] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 443.468880][ T8299] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 443.468934][ T8299] gfs2_get_tree+0x51/0x1e0
[ 443.468957][ T8299] vfs_get_tree+0x92/0x2a0
[ 443.468984][ T8299] do_new_mount+0x341/0xd30
[ 443.469003][ T8299] ? apparmor_capable+0x126/0x170
[ 443.469029][ T8299] ? __pfx_do_new_mount+0x10/0x10
[ 443.469050][ T8299] ? ns_capable+0x89/0xe0
[ 443.469079][ T8299] ? user_path_at+0xd4/0x160
[ 443.469105][ T8299] ? user_path_at+0xd4/0x160
[ 443.469130][ T8299] __se_sys_mount+0x31d/0x420
[ 443.469157][ T8299] ? __pfx___se_sys_mount+0x10/0x10
[ 443.469184][ T8299] ? __x64_sys_mount+0x20/0xc0
[ 443.469204][ T8299] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 443.469226][ T8299] do_syscall_64+0x15f/0xf80
[ 443.469245][ T8299] ? trace_irq_disable+0x3b/0x140
[ 443.469271][ T8299] ? clear_bhb_loop+0x40/0x90
[ 443.469294][ T8299] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 443.469311][ T8299] RIP: 0033:0x7fc5b8848e8a
[ 443.469330][ T8299] 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
[ 443.469357][ T8299] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 443.469378][ T8299] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 443.469391][ T8299] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 443.469403][ T8299] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 443.469415][ T8299] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 443.469427][ T8299] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 443.469458][ T8299]
[ 443.471380][ T8299] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 443.471400][ T8299] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 444.074024][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 616ms
[ 444.074254][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 444.074386][ T8297] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 445.111491][ T8305] loop4: detected capacity change from 0 to 32768
[ 445.161566][ T8305] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 445.161586][ T8305] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 445.213801][ T8305] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 445.265023][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 445.265045][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 445.526439][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 261ms
[ 445.526691][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 445.541474][ T8305] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 445.664959][ T8312] loop2: detected capacity change from 0 to 32768
[ 445.764791][ T8312] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 445.764815][ T8312] CPU: 0 UID: 0 PID: 8312 Comm: syz.2.407 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 445.764839][ T8312] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 445.764850][ T8312] Call Trace:
[ 445.764858][ T8312]
[ 445.764866][ T8312] dump_stack_lvl+0xe8/0x150
[ 445.764897][ T8312] sysfs_create_dir_ns+0x271/0x2a0
[ 445.764923][ T8312] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 445.764951][ T8312] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 445.764979][ T8312] ? rt_spin_unlock+0x160/0x200
[ 445.765004][ T8312] kobject_add_internal+0x631/0xd10
[ 445.765037][ T8312] kobject_init_and_add+0x12b/0x1a0
[ 445.765067][ T8312] ? __pfx_kobject_init_and_add+0x10/0x10
[ 445.765093][ T8312] ? __raw_spin_lock_init+0x45/0x100
[ 445.765121][ T8312] ? __init_swait_queue_head+0xa9/0x150
[ 445.765159][ T8312] gfs2_sys_fs_add+0x257/0x480
[ 445.765184][ T8312] ? is_dynamic_key+0x1ac/0x1c0
[ 445.765205][ T8312] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 445.765237][ T8312] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 445.765272][ T8312] gfs2_fill_super+0x141c/0x2220
[ 445.765306][ T8312] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.765325][ T8312] ? rt_spin_unlock+0x14f/0x200
[ 445.765353][ T8312] ? sb_set_blocksize+0x11b/0x210
[ 445.765383][ T8312] ? setup_bdev_super+0x4c1/0x5b0
[ 445.765414][ T8312] get_tree_bdev_flags+0x431/0x4f0
[ 445.765442][ T8312] ? __pfx_gfs2_fill_super+0x10/0x10
[ 445.765462][ T8312] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 445.765486][ T8312] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 445.765522][ T8312] gfs2_get_tree+0x51/0x1e0
[ 445.765545][ T8312] vfs_get_tree+0x92/0x2a0
[ 445.765574][ T8312] do_new_mount+0x341/0xd30
[ 445.765595][ T8312] ? apparmor_capable+0x126/0x170
[ 445.765622][ T8312] ? __pfx_do_new_mount+0x10/0x10
[ 445.765661][ T8312] ? ns_capable+0x89/0xe0
[ 445.765690][ T8312] ? user_path_at+0xd4/0x160
[ 445.765713][ T8312] ? user_path_at+0xd4/0x160
[ 445.765734][ T8312] __se_sys_mount+0x31d/0x420
[ 445.765758][ T8312] ? __pfx___se_sys_mount+0x10/0x10
[ 445.765783][ T8312] ? __x64_sys_mount+0x20/0xc0
[ 445.765803][ T8312] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.765822][ T8312] do_syscall_64+0x15f/0xf80
[ 445.765841][ T8312] ? trace_irq_disable+0x3b/0x140
[ 445.765868][ T8312] ? clear_bhb_loop+0x40/0x90
[ 445.765891][ T8312] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 445.765910][ T8312] RIP: 0033:0x7fcd15ca8e8a
[ 445.765929][ T8312] 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
[ 445.765945][ T8312] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 445.765965][ T8312] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 445.765979][ T8312] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 445.765992][ T8312] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 445.766005][ T8312] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 445.766018][ T8312] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 445.766048][ T8312]
[ 445.776907][ T8312] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 445.776931][ T8312] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 446.045582][ T8314] loop3: detected capacity change from 0 to 32768
[ 446.210856][ T8314] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 446.210875][ T8314] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 446.559972][ T8314] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 446.593262][ T5724] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 446.593282][ T5724] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 446.614891][ T8316] loop0: detected capacity change from 0 to 32768
[ 446.681487][ T8316] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 446.681514][ T8316] CPU: 0 UID: 0 PID: 8316 Comm: syz.0.409 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 446.681538][ T8316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 446.681550][ T8316] Call Trace:
[ 446.681557][ T8316]
[ 446.681566][ T8316] dump_stack_lvl+0xe8/0x150
[ 446.681596][ T8316] sysfs_create_dir_ns+0x271/0x2a0
[ 446.681620][ T8316] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 446.681648][ T8316] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 446.681675][ T8316] ? rt_spin_unlock+0x160/0x200
[ 446.681706][ T8316] kobject_add_internal+0x631/0xd10
[ 446.681741][ T8316] kobject_init_and_add+0x12b/0x1a0
[ 446.681771][ T8316] ? __pfx_kobject_init_and_add+0x10/0x10
[ 446.681798][ T8316] ? __raw_spin_lock_init+0x45/0x100
[ 446.681825][ T8316] ? __init_swait_queue_head+0xa9/0x150
[ 446.681858][ T8316] gfs2_sys_fs_add+0x257/0x480
[ 446.681883][ T8316] ? is_dynamic_key+0x1ac/0x1c0
[ 446.681903][ T8316] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 446.681937][ T8316] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 446.681978][ T8316] gfs2_fill_super+0x141c/0x2220
[ 446.682012][ T8316] ? __pfx_gfs2_fill_super+0x10/0x10
[ 446.682027][ T8316] ? rt_spin_unlock+0x14f/0x200
[ 446.682055][ T8316] ? sb_set_blocksize+0x11b/0x210
[ 446.682075][ T8316] ? setup_bdev_super+0x4c1/0x5b0
[ 446.682106][ T8316] get_tree_bdev_flags+0x431/0x4f0
[ 446.682133][ T8316] ? __pfx_gfs2_fill_super+0x10/0x10
[ 446.682153][ T8316] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 446.682177][ T8316] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 446.682210][ T8316] gfs2_get_tree+0x51/0x1e0
[ 446.682234][ T8316] vfs_get_tree+0x92/0x2a0
[ 446.682262][ T8316] do_new_mount+0x341/0xd30
[ 446.682283][ T8316] ? apparmor_capable+0x126/0x170
[ 446.682312][ T8316] ? __pfx_do_new_mount+0x10/0x10
[ 446.682333][ T8316] ? ns_capable+0x89/0xe0
[ 446.682362][ T8316] ? user_path_at+0xd4/0x160
[ 446.682391][ T8316] ? user_path_at+0xd4/0x160
[ 446.682415][ T8316] __se_sys_mount+0x31d/0x420
[ 446.682442][ T8316] ? __pfx___se_sys_mount+0x10/0x10
[ 446.682469][ T8316] ? __x64_sys_mount+0x20/0xc0
[ 446.682489][ T8316] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.682510][ T8316] do_syscall_64+0x15f/0xf80
[ 446.682530][ T8316] ? trace_irq_disable+0x3b/0x140
[ 446.682557][ T8316] ? clear_bhb_loop+0x40/0x90
[ 446.682578][ T8316] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.682597][ T8316] RIP: 0033:0x7fc5b8848e8a
[ 446.682618][ T8316] 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
[ 446.682634][ T8316] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 446.682655][ T8316] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 446.682669][ T8316] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 446.682681][ T8316] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 446.682693][ T8316] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 446.682704][ T8316] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 446.682729][ T8316]
[ 446.691717][ T8316] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 446.691739][ T8316] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 446.795913][ T8318] loop1: detected capacity change from 0 to 32768
[ 446.829481][ T8318] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 446.829507][ T8318] CPU: 0 UID: 0 PID: 8318 Comm: syz.1.410 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 446.829529][ T8318] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 446.829541][ T8318] Call Trace:
[ 446.829549][ T8318]
[ 446.829557][ T8318] dump_stack_lvl+0xe8/0x150
[ 446.829587][ T8318] sysfs_create_dir_ns+0x271/0x2a0
[ 446.829612][ T8318] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 446.829639][ T8318] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 446.829665][ T8318] ? rt_spin_unlock+0x160/0x200
[ 446.829691][ T8318] kobject_add_internal+0x631/0xd10
[ 446.829723][ T8318] kobject_init_and_add+0x12b/0x1a0
[ 446.829753][ T8318] ? __pfx_kobject_init_and_add+0x10/0x10
[ 446.829778][ T8318] ? __raw_spin_lock_init+0x45/0x100
[ 446.829805][ T8318] ? __init_swait_queue_head+0xa9/0x150
[ 446.829835][ T8318] gfs2_sys_fs_add+0x257/0x480
[ 446.829857][ T8318] ? is_dynamic_key+0x1ac/0x1c0
[ 446.829877][ T8318] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 446.829908][ T8318] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 446.829941][ T8318] gfs2_fill_super+0x141c/0x2220
[ 446.829986][ T8318] ? __pfx_gfs2_fill_super+0x10/0x10
[ 446.830004][ T8318] ? rt_spin_unlock+0x14f/0x200
[ 446.830032][ T8318] ? sb_set_blocksize+0x11b/0x210
[ 446.830056][ T8318] ? setup_bdev_super+0x4c1/0x5b0
[ 446.830085][ T8318] get_tree_bdev_flags+0x431/0x4f0
[ 446.830112][ T8318] ? __pfx_gfs2_fill_super+0x10/0x10
[ 446.830130][ T8318] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 446.830154][ T8318] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 446.830190][ T8318] gfs2_get_tree+0x51/0x1e0
[ 446.830220][ T8318] vfs_get_tree+0x92/0x2a0
[ 446.830248][ T8318] do_new_mount+0x341/0xd30
[ 446.830267][ T8318] ? apparmor_capable+0x126/0x170
[ 446.830294][ T8318] ? __pfx_do_new_mount+0x10/0x10
[ 446.830315][ T8318] ? ns_capable+0x89/0xe0
[ 446.830343][ T8318] ? user_path_at+0xd4/0x160
[ 446.830370][ T8318] ? user_path_at+0xd4/0x160
[ 446.830395][ T8318] __se_sys_mount+0x31d/0x420
[ 446.830423][ T8318] ? __pfx___se_sys_mount+0x10/0x10
[ 446.830449][ T8318] ? __x64_sys_mount+0x20/0xc0
[ 446.830470][ T8318] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.830489][ T8318] do_syscall_64+0x15f/0xf80
[ 446.830509][ T8318] ? trace_irq_disable+0x3b/0x140
[ 446.830535][ T8318] ? clear_bhb_loop+0x40/0x90
[ 446.830556][ T8318] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 446.830574][ T8318] RIP: 0033:0x7f29bbb28e8a
[ 446.830593][ T8318] 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
[ 446.830609][ T8318] RSP: 002b:00007f29bad9de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 446.830629][ T8318] RAX: ffffffffffffffda RBX: 00007f29bad9dee0 RCX: 00007f29bbb28e8a
[ 446.830643][ T8318] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29bad9dea0
[ 446.830655][ T8318] RBP: 0000000020000000 R08: 00007f29bad9dee0 R09: 0000000000208c1b
[ 446.830667][ T8318] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 446.830680][ T8318] R13: 00007f29bad9dea0 R14: 0000000000012752 R15: 0000000020013100
[ 446.830709][ T8318]
[ 446.837623][ T8318] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 446.837644][ T8318] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 447.568816][ T5724] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 975ms
[ 447.569028][ T5724] gfs2: fsid=syz:syz.0: jid=0: Done
[ 447.569141][ T8314] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 448.527016][ T8326] loop2: detected capacity change from 0 to 32768
[ 448.565239][ T8326] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 448.565259][ T8326] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 448.666223][ T8326] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 448.703508][ T823] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 448.703529][ T823] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 448.864724][ T823] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 161ms
[ 448.876324][ T823] gfs2: fsid=syz:syz.0: jid=0: Done
[ 448.876448][ T8326] gfs2: fsid=syz:syz.0: first mount done, others may mount
2026/05/06 19:25:30 executed programs: 411
[ 449.000820][ T8340] loop0: detected capacity change from 0 to 32768
[ 449.004336][ T8338] loop1: detected capacity change from 0 to 32768
[ 449.101398][ T8338] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 449.101423][ T8338] CPU: 1 UID: 0 PID: 8338 Comm: syz.1.414 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 449.101446][ T8338] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 449.101457][ T8338] Call Trace:
[ 449.101464][ T8338]
[ 449.101473][ T8338] dump_stack_lvl+0xe8/0x150
[ 449.101504][ T8338] sysfs_create_dir_ns+0x271/0x2a0
[ 449.101528][ T8338] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 449.101556][ T8338] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 449.101600][ T8338] ? rt_spin_unlock+0x160/0x200
[ 449.101628][ T8338] kobject_add_internal+0x631/0xd10
[ 449.101661][ T8338] kobject_init_and_add+0x12b/0x1a0
[ 449.101690][ T8338] ? __pfx_kobject_init_and_add+0x10/0x10
[ 449.101717][ T8338] ? __raw_spin_lock_init+0x45/0x100
[ 449.101746][ T8338] ? __init_swait_queue_head+0xa9/0x150
[ 449.101786][ T8338] gfs2_sys_fs_add+0x257/0x480
[ 449.101810][ T8338] ? is_dynamic_key+0x1ac/0x1c0
[ 449.101831][ T8338] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 449.101874][ T8338] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 449.101908][ T8338] gfs2_fill_super+0x141c/0x2220
[ 449.101944][ T8338] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.101962][ T8338] ? rt_spin_unlock+0x14f/0x200
[ 449.101992][ T8338] ? sb_set_blocksize+0x11b/0x210
[ 449.102012][ T8338] ? setup_bdev_super+0x4c1/0x5b0
[ 449.102043][ T8338] get_tree_bdev_flags+0x431/0x4f0
[ 449.102071][ T8338] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.102090][ T8338] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 449.102115][ T8338] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 449.102152][ T8338] gfs2_get_tree+0x51/0x1e0
[ 449.102172][ T8338] vfs_get_tree+0x92/0x2a0
[ 449.102201][ T8338] do_new_mount+0x341/0xd30
[ 449.102222][ T8338] ? apparmor_capable+0x126/0x170
[ 449.102247][ T8338] ? __pfx_do_new_mount+0x10/0x10
[ 449.102266][ T8338] ? ns_capable+0x89/0xe0
[ 449.102292][ T8338] ? user_path_at+0xd4/0x160
[ 449.102318][ T8338] ? user_path_at+0xd4/0x160
[ 449.102342][ T8338] __se_sys_mount+0x31d/0x420
[ 449.102363][ T8338] ? __pfx___se_sys_mount+0x10/0x10
[ 449.102388][ T8338] ? __x64_sys_mount+0x20/0xc0
[ 449.102407][ T8338] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.102427][ T8338] do_syscall_64+0x15f/0xf80
[ 449.102446][ T8338] ? trace_irq_disable+0x3b/0x140
[ 449.102471][ T8338] ? clear_bhb_loop+0x40/0x90
[ 449.102491][ T8338] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.102509][ T8338] RIP: 0033:0x7f29bbb28e8a
[ 449.102526][ T8338] 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
[ 449.102542][ T8338] RSP: 002b:00007f29bad9de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 449.102561][ T8338] RAX: ffffffffffffffda RBX: 00007f29bad9dee0 RCX: 00007f29bbb28e8a
[ 449.102576][ T8338] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29bad9dea0
[ 449.102589][ T8338] RBP: 0000000020000000 R08: 00007f29bad9dee0 R09: 0000000000208c1b
[ 449.102599][ T8338] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 449.102611][ T8338] R13: 00007f29bad9dea0 R14: 0000000000012752 R15: 0000000020013100
[ 449.102640][ T8338]
[ 449.104290][ T8338] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 449.104312][ T8338] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 449.106033][ T8340] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 449.106055][ T8340] CPU: 1 UID: 0 PID: 8340 Comm: syz.0.413 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 449.106077][ T8340] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 449.106087][ T8340] Call Trace:
[ 449.106093][ T8340]
[ 449.106102][ T8340] dump_stack_lvl+0xe8/0x150
[ 449.106130][ T8340] sysfs_create_dir_ns+0x271/0x2a0
[ 449.106153][ T8340] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 449.106180][ T8340] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 449.106204][ T8340] ? rt_spin_unlock+0x160/0x200
[ 449.106232][ T8340] kobject_add_internal+0x631/0xd10
[ 449.106265][ T8340] kobject_init_and_add+0x12b/0x1a0
[ 449.106295][ T8340] ? __pfx_kobject_init_and_add+0x10/0x10
[ 449.106320][ T8340] ? __raw_spin_lock_init+0x45/0x100
[ 449.106348][ T8340] ? __init_swait_queue_head+0xa9/0x150
[ 449.106379][ T8340] gfs2_sys_fs_add+0x257/0x480
[ 449.106403][ T8340] ? is_dynamic_key+0x1ac/0x1c0
[ 449.106423][ T8340] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 449.106456][ T8340] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 449.106489][ T8340] gfs2_fill_super+0x141c/0x2220
[ 449.106524][ T8340] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.106540][ T8340] ? rt_spin_unlock+0x14f/0x200
[ 449.106574][ T8340] ? sb_set_blocksize+0x11b/0x210
[ 449.106596][ T8340] ? setup_bdev_super+0x4c1/0x5b0
[ 449.106624][ T8340] get_tree_bdev_flags+0x431/0x4f0
[ 449.106652][ T8340] ? __pfx_gfs2_fill_super+0x10/0x10
[ 449.106670][ T8340] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 449.106693][ T8340] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 449.106730][ T8340] gfs2_get_tree+0x51/0x1e0
[ 449.106753][ T8340] vfs_get_tree+0x92/0x2a0
[ 449.106791][ T8340] do_new_mount+0x341/0xd30
[ 449.106811][ T8340] ? apparmor_capable+0x126/0x170
[ 449.106838][ T8340] ? __pfx_do_new_mount+0x10/0x10
[ 449.106860][ T8340] ? ns_capable+0x89/0xe0
[ 449.106889][ T8340] ? user_path_at+0xd4/0x160
[ 449.106915][ T8340] ? user_path_at+0xd4/0x160
[ 449.106938][ T8340] __se_sys_mount+0x31d/0x420
[ 449.106962][ T8340] ? __pfx___se_sys_mount+0x10/0x10
[ 449.106987][ T8340] ? __x64_sys_mount+0x20/0xc0
[ 449.107006][ T8340] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.107025][ T8340] do_syscall_64+0x15f/0xf80
[ 449.107044][ T8340] ? trace_irq_disable+0x3b/0x140
[ 449.107070][ T8340] ? clear_bhb_loop+0x40/0x90
[ 449.107092][ T8340] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 449.107110][ T8340] RIP: 0033:0x7fc5b8848e8a
[ 449.107128][ T8340] 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
[ 449.107144][ T8340] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 449.107162][ T8340] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 449.107173][ T8340] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 449.107182][ T8340] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 449.107192][ T8340] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 449.107201][ T8340] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 449.107225][ T8340]
[ 449.107257][ T8340] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 449.107268][ T8340] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 449.307925][ T8337] loop4: detected capacity change from 0 to 32768
[ 449.352697][ T8337] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 449.352717][ T8337] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 449.425453][ T8337] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 449.439996][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 449.440017][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 450.122564][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 682ms
[ 450.122786][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 450.122836][ T8337] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 450.515415][ T8343] loop3: detected capacity change from 0 to 32768
[ 450.640549][ T8343] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 450.640571][ T8343] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 450.858284][ T8343] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 450.892467][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 450.892488][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 451.211917][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 319ms
[ 451.212164][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 451.218186][ T8343] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 451.233341][ T8343] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 451.233362][ T8343] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 451.233389][ T8343] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 451.233418][ T8343] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8343 [syz.3.415] iterate_dir+0x3a5/0x580
[ 451.233450][ T8343] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 451.233477][ T8343] CPU: 0 UID: 0 PID: 8343 Comm: syz.3.415 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 451.233498][ T8343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 451.233518][ T8343] Call Trace:
[ 451.233525][ T8343]
[ 451.233533][ T8343] dump_stack_lvl+0xe8/0x150
[ 451.233559][ T8343] gfs2_withdraw+0xc3/0x1b0
[ 451.233581][ T8343] gfs2_dirent_scan+0x545/0x690
[ 451.233603][ T8343] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 451.233627][ T8343] gfs2_dir_read+0x78e/0x1760
[ 451.233648][ T8343] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 451.233674][ T8343] ? __pfx_inode_dio_wait+0x10/0x10
[ 451.233705][ T8343] ? __pfx_gfs2_dir_read+0x10/0x10
[ 451.233733][ T8343] ? gfs2_glock_wait+0x212/0x2a0
[ 451.233756][ T8343] gfs2_readdir+0x16c/0x1e0
[ 451.233777][ T8343] ? __pfx_gfs2_readdir+0x10/0x10
[ 451.233793][ T8343] ? down_read_killable+0x14c/0x220
[ 451.233817][ T8343] ? iterate_dir+0x3a5/0x580
[ 451.233835][ T8343] ? apparmor_file_permission+0x1f4/0x300
[ 451.233865][ T8343] iterate_dir+0x3a5/0x580
[ 451.233888][ T8343] __se_sys_getdents+0xf1/0x270
[ 451.233917][ T8343] ? __pfx___se_sys_getdents+0x10/0x10
[ 451.233935][ T8343] ? __pfx_filldir+0x10/0x10
[ 451.233954][ T8343] ? rcu_is_watching+0x15/0xb0
[ 451.233984][ T8343] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.234005][ T8343] do_syscall_64+0x15f/0xf80
[ 451.234024][ T8343] ? trace_irq_disable+0x3b/0x140
[ 451.234050][ T8343] ? clear_bhb_loop+0x40/0x90
[ 451.234072][ T8343] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 451.234090][ T8343] RIP: 0033:0x7f6c6c117be9
[ 451.234108][ T8343] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 451.234123][ T8343] RSP: 002b:00007f6c6b38e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 451.234143][ T8343] RAX: ffffffffffffffda RBX: 00007f6c6c2e5f80 RCX: 00007f6c6c117be9
[ 451.234157][ T8343] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 451.234169][ T8343] RBP: 00007f6c6c19b2bf R08: 0000000000000000 R09: 0000000000000000
[ 451.234180][ T8343] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 451.234191][ T8343] R13: 0000000000000000 R14: 00007f6c6c2e5f80 R15: 00007ffcf9862bf8
[ 451.234220][ T8343]
[ 451.234238][ T8343] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 451.234303][ T5736] gfs2: fsid=syz:syz.0: file system withdrawn
[ 452.276751][ T8358] loop2: detected capacity change from 0 to 32768
[ 452.282826][ T8356] loop0: detected capacity change from 0 to 32768
[ 452.294154][ T8356] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 452.294172][ T8356] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 452.346407][ T8354] loop1: detected capacity change from 0 to 32768
[ 452.354088][ T8358] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 452.354113][ T8358] CPU: 0 UID: 0 PID: 8358 Comm: syz.2.416 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 452.354135][ T8358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 452.354146][ T8358] Call Trace:
[ 452.354154][ T8358]
[ 452.354162][ T8358] dump_stack_lvl+0xe8/0x150
[ 452.354191][ T8358] sysfs_create_dir_ns+0x271/0x2a0
[ 452.354215][ T8358] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 452.354242][ T8358] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 452.354268][ T8358] ? rt_spin_unlock+0x160/0x200
[ 452.354295][ T8358] kobject_add_internal+0x631/0xd10
[ 452.354326][ T8358] kobject_init_and_add+0x12b/0x1a0
[ 452.354354][ T8358] ? __pfx_kobject_init_and_add+0x10/0x10
[ 452.354380][ T8358] ? __raw_spin_lock_init+0x45/0x100
[ 452.354429][ T8358] ? __init_swait_queue_head+0xa9/0x150
[ 452.354459][ T8358] gfs2_sys_fs_add+0x257/0x480
[ 452.354484][ T8358] ? is_dynamic_key+0x1ac/0x1c0
[ 452.354503][ T8358] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 452.354535][ T8358] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 452.354567][ T8358] gfs2_fill_super+0x141c/0x2220
[ 452.354601][ T8358] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.354619][ T8358] ? rt_spin_unlock+0x14f/0x200
[ 452.354653][ T8358] ? sb_set_blocksize+0x11b/0x210
[ 452.354674][ T8358] ? setup_bdev_super+0x4c1/0x5b0
[ 452.354704][ T8358] get_tree_bdev_flags+0x431/0x4f0
[ 452.354731][ T8358] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.354750][ T8358] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 452.354774][ T8358] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 452.354809][ T8358] gfs2_get_tree+0x51/0x1e0
[ 452.354831][ T8358] vfs_get_tree+0x92/0x2a0
[ 452.354859][ T8358] do_new_mount+0x341/0xd30
[ 452.354879][ T8358] ? apparmor_capable+0x126/0x170
[ 452.354904][ T8358] ? __pfx_do_new_mount+0x10/0x10
[ 452.354925][ T8358] ? ns_capable+0x89/0xe0
[ 452.354954][ T8358] ? user_path_at+0xd4/0x160
[ 452.354981][ T8358] ? user_path_at+0xd4/0x160
[ 452.355006][ T8358] __se_sys_mount+0x31d/0x420
[ 452.355033][ T8358] ? __pfx___se_sys_mount+0x10/0x10
[ 452.355061][ T8358] ? __x64_sys_mount+0x20/0xc0
[ 452.355080][ T8358] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.355097][ T8358] do_syscall_64+0x15f/0xf80
[ 452.355115][ T8358] ? trace_irq_disable+0x3b/0x140
[ 452.355140][ T8358] ? clear_bhb_loop+0x40/0x90
[ 452.355162][ T8358] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.355179][ T8358] RIP: 0033:0x7fcd15ca8e8a
[ 452.355198][ T8358] 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
[ 452.355214][ T8358] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 452.355234][ T8358] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 452.355248][ T8358] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 452.355260][ T8358] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 452.355271][ T8358] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 452.355287][ T8358] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 452.355316][ T8358]
[ 452.355430][ T8358] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 452.355446][ T8358] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 452.450400][ T8356] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 452.455776][ T8354] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 452.455799][ T8354] CPU: 0 UID: 0 PID: 8354 Comm: syz.1.418 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 452.455821][ T8354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 452.455832][ T8354] Call Trace:
[ 452.455839][ T8354]
[ 452.455846][ T8354] dump_stack_lvl+0xe8/0x150
[ 452.455875][ T8354] sysfs_create_dir_ns+0x271/0x2a0
[ 452.455900][ T8354] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 452.455927][ T8354] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 452.455951][ T8354] ? rt_spin_unlock+0x160/0x200
[ 452.455978][ T8354] kobject_add_internal+0x631/0xd10
[ 452.456010][ T8354] kobject_init_and_add+0x12b/0x1a0
[ 452.456038][ T8354] ? __pfx_kobject_init_and_add+0x10/0x10
[ 452.456063][ T8354] ? __raw_spin_lock_init+0x45/0x100
[ 452.456092][ T8354] ? __init_swait_queue_head+0xa9/0x150
[ 452.456123][ T8354] gfs2_sys_fs_add+0x257/0x480
[ 452.456146][ T8354] ? is_dynamic_key+0x1ac/0x1c0
[ 452.456166][ T8354] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 452.456197][ T8354] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 452.456230][ T8354] gfs2_fill_super+0x141c/0x2220
[ 452.456263][ T8354] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.456280][ T8354] ? rt_spin_unlock+0x14f/0x200
[ 452.456308][ T8354] ? sb_set_blocksize+0x11b/0x210
[ 452.456328][ T8354] ? setup_bdev_super+0x4c1/0x5b0
[ 452.456359][ T8354] get_tree_bdev_flags+0x431/0x4f0
[ 452.456384][ T8354] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.456403][ T8354] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 452.456427][ T8354] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 452.456463][ T8354] gfs2_get_tree+0x51/0x1e0
[ 452.456485][ T8354] vfs_get_tree+0x92/0x2a0
[ 452.456513][ T8354] do_new_mount+0x341/0xd30
[ 452.456532][ T8354] ? apparmor_capable+0x126/0x170
[ 452.456558][ T8354] ? __pfx_do_new_mount+0x10/0x10
[ 452.456579][ T8354] ? ns_capable+0x89/0xe0
[ 452.456606][ T8354] ? user_path_at+0xd4/0x160
[ 452.456633][ T8354] ? user_path_at+0xd4/0x160
[ 452.456659][ T8354] __se_sys_mount+0x31d/0x420
[ 452.456686][ T8354] ? __pfx___se_sys_mount+0x10/0x10
[ 452.456712][ T8354] ? __x64_sys_mount+0x20/0xc0
[ 452.456734][ T8354] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.456759][ T8354] do_syscall_64+0x15f/0xf80
[ 452.456779][ T8354] ? trace_irq_disable+0x3b/0x140
[ 452.456805][ T8354] ? clear_bhb_loop+0x40/0x90
[ 452.456827][ T8354] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.456845][ T8354] RIP: 0033:0x7f29bbb28e8a
[ 452.456865][ T8354] 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
[ 452.456881][ T8354] RSP: 002b:00007f29bad9de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 452.456900][ T8354] RAX: ffffffffffffffda RBX: 00007f29bad9dee0 RCX: 00007f29bbb28e8a
[ 452.456914][ T8354] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29bad9dea0
[ 452.456927][ T8354] RBP: 0000000020000000 R08: 00007f29bad9dee0 R09: 0000000000208c1b
[ 452.456940][ T8354] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 452.456956][ T8354] R13: 00007f29bad9dea0 R14: 0000000000012752 R15: 0000000020013100
[ 452.456985][ T8354]
[ 452.457319][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 452.457332][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 452.463622][ T8354] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 452.463644][ T8354] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 452.944091][ T8362] loop4: detected capacity change from 0 to 32768
[ 452.953514][ T8362] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 452.953537][ T8362] CPU: 0 UID: 0 PID: 8362 Comm: syz.4.419 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 452.953559][ T8362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 452.953570][ T8362] Call Trace:
[ 452.953578][ T8362]
[ 452.953586][ T8362] dump_stack_lvl+0xe8/0x150
[ 452.953614][ T8362] sysfs_create_dir_ns+0x271/0x2a0
[ 452.953638][ T8362] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 452.953665][ T8362] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 452.953691][ T8362] ? rt_spin_unlock+0x160/0x200
[ 452.953716][ T8362] kobject_add_internal+0x631/0xd10
[ 452.953747][ T8362] kobject_init_and_add+0x12b/0x1a0
[ 452.953776][ T8362] ? __pfx_kobject_init_and_add+0x10/0x10
[ 452.953801][ T8362] ? __raw_spin_lock_init+0x45/0x100
[ 452.953828][ T8362] ? __init_swait_queue_head+0xa9/0x150
[ 452.953857][ T8362] gfs2_sys_fs_add+0x257/0x480
[ 452.953881][ T8362] ? is_dynamic_key+0x1ac/0x1c0
[ 452.953900][ T8362] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 452.953931][ T8362] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 452.953963][ T8362] gfs2_fill_super+0x141c/0x2220
[ 452.954001][ T8362] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.954018][ T8362] ? rt_spin_unlock+0x14f/0x200
[ 452.954045][ T8362] ? sb_set_blocksize+0x11b/0x210
[ 452.954066][ T8362] ? setup_bdev_super+0x4c1/0x5b0
[ 452.954095][ T8362] get_tree_bdev_flags+0x431/0x4f0
[ 452.954122][ T8362] ? __pfx_gfs2_fill_super+0x10/0x10
[ 452.954141][ T8362] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 452.954163][ T8362] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 452.954198][ T8362] gfs2_get_tree+0x51/0x1e0
[ 452.954220][ T8362] vfs_get_tree+0x92/0x2a0
[ 452.954248][ T8362] do_new_mount+0x341/0xd30
[ 452.954266][ T8362] ? apparmor_capable+0x126/0x170
[ 452.954292][ T8362] ? __pfx_do_new_mount+0x10/0x10
[ 452.954313][ T8362] ? ns_capable+0x89/0xe0
[ 452.954367][ T8362] ? user_path_at+0xd4/0x160
[ 452.954401][ T8362] ? user_path_at+0xd4/0x160
[ 452.954426][ T8362] __se_sys_mount+0x31d/0x420
[ 452.954453][ T8362] ? __pfx___se_sys_mount+0x10/0x10
[ 452.954480][ T8362] ? __x64_sys_mount+0x20/0xc0
[ 452.954499][ T8362] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.954520][ T8362] do_syscall_64+0x15f/0xf80
[ 452.954539][ T8362] ? trace_irq_disable+0x3b/0x140
[ 452.954566][ T8362] ? clear_bhb_loop+0x40/0x90
[ 452.954586][ T8362] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 452.954604][ T8362] RIP: 0033:0x7ffa32018e8a
[ 452.954622][ T8362] 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
[ 452.954638][ T8362] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 452.954658][ T8362] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 452.954672][ T8362] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 452.954685][ T8362] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 452.954697][ T8362] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 452.954710][ T8362] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 452.954738][ T8362]
[ 452.969320][ T8362] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 452.969342][ T8362] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 452.999467][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 542ms
[ 452.999682][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 453.017845][ T8356] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 453.899028][ T8364] loop3: detected capacity change from 0 to 32768
[ 453.952804][ T8364] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 453.952824][ T8364] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
2026/05/06 19:25:35 executed programs: 419
[ 454.034456][ T8364] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 454.051097][ T823] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 454.051116][ T823] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 454.314870][ T823] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 263ms
[ 454.350944][ T823] gfs2: fsid=syz:syz.0: jid=0: Done
[ 454.351048][ T8364] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 454.390727][ T8364] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 454.390750][ T8364] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 454.390779][ T8364] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 454.390808][ T8364] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8364 [syz.3.420] iterate_dir+0x3a5/0x580
[ 454.390841][ T8364] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 454.390869][ T8364] CPU: 0 UID: 0 PID: 8364 Comm: syz.3.420 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 454.390891][ T8364] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 454.390902][ T8364] Call Trace:
[ 454.390910][ T8364]
[ 454.390918][ T8364] dump_stack_lvl+0xe8/0x150
[ 454.390945][ T8364] gfs2_withdraw+0xc3/0x1b0
[ 454.390967][ T8364] gfs2_dirent_scan+0x545/0x690
[ 454.390991][ T8364] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 454.391015][ T8364] gfs2_dir_read+0x78e/0x1760
[ 454.391041][ T8364] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 454.391068][ T8364] ? __pfx_inode_dio_wait+0x10/0x10
[ 454.391102][ T8364] ? __pfx_gfs2_dir_read+0x10/0x10
[ 454.391135][ T8364] ? gfs2_glock_wait+0x212/0x2a0
[ 454.391160][ T8364] gfs2_readdir+0x16c/0x1e0
[ 454.391181][ T8364] ? __pfx_gfs2_readdir+0x10/0x10
[ 454.391198][ T8364] ? down_read_killable+0x14c/0x220
[ 454.391221][ T8364] ? iterate_dir+0x3a5/0x580
[ 454.391241][ T8364] ? apparmor_file_permission+0x1f4/0x300
[ 454.391272][ T8364] iterate_dir+0x3a5/0x580
[ 454.391296][ T8364] __se_sys_getdents+0xf1/0x270
[ 454.391318][ T8364] ? __pfx___se_sys_getdents+0x10/0x10
[ 454.391336][ T8364] ? __pfx_filldir+0x10/0x10
[ 454.391356][ T8364] ? rcu_is_watching+0x15/0xb0
[ 454.391388][ T8364] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.391409][ T8364] do_syscall_64+0x15f/0xf80
[ 454.391430][ T8364] ? trace_irq_disable+0x3b/0x140
[ 454.391468][ T8364] ? clear_bhb_loop+0x40/0x90
[ 454.391493][ T8364] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 454.391512][ T8364] RIP: 0033:0x7f6c6c117be9
[ 454.391530][ T8364] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 454.391547][ T8364] RSP: 002b:00007f6c6b38e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 454.391568][ T8364] RAX: ffffffffffffffda RBX: 00007f6c6c2e5f80 RCX: 00007f6c6c117be9
[ 454.391581][ T8364] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 454.391594][ T8364] RBP: 00007f6c6c19b2bf R08: 0000000000000000 R09: 0000000000000000
[ 454.391606][ T8364] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 454.391618][ T8364] R13: 0000000000000000 R14: 00007f6c6c2e5f80 R15: 00007ffcf9862bf8
[ 454.391648][ T8364]
[ 454.391656][ T8364] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 454.391745][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 455.389437][ T8376] loop1: detected capacity change from 0 to 32768
[ 455.418781][ T8376] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 455.418799][ T8376] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 455.543300][ T8376] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 455.560522][ T5342] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 455.560543][ T5342] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 455.641381][ T8382] loop4: detected capacity change from 0 to 32768
[ 455.666809][ T8382] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 455.666832][ T8382] CPU: 0 UID: 0 PID: 8382 Comm: syz.4.424 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 455.666857][ T8382] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 455.666869][ T8382] Call Trace:
[ 455.666876][ T8382]
[ 455.666886][ T8382] dump_stack_lvl+0xe8/0x150
[ 455.666916][ T8382] sysfs_create_dir_ns+0x271/0x2a0
[ 455.666940][ T8382] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 455.666968][ T8382] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 455.666995][ T8382] ? rt_spin_unlock+0x160/0x200
[ 455.667022][ T8382] kobject_add_internal+0x631/0xd10
[ 455.667056][ T8382] kobject_init_and_add+0x12b/0x1a0
[ 455.667087][ T8382] ? __pfx_kobject_init_and_add+0x10/0x10
[ 455.667113][ T8382] ? __raw_spin_lock_init+0x45/0x100
[ 455.667142][ T8382] ? __init_swait_queue_head+0xa9/0x150
[ 455.667180][ T8382] gfs2_sys_fs_add+0x257/0x480
[ 455.667204][ T8382] ? is_dynamic_key+0x1ac/0x1c0
[ 455.667225][ T8382] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 455.667258][ T8382] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 455.667293][ T8382] gfs2_fill_super+0x141c/0x2220
[ 455.667328][ T8382] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.667346][ T8382] ? rt_spin_unlock+0x14f/0x200
[ 455.667375][ T8382] ? sb_set_blocksize+0x11b/0x210
[ 455.667397][ T8382] ? setup_bdev_super+0x4c1/0x5b0
[ 455.667426][ T8382] get_tree_bdev_flags+0x431/0x4f0
[ 455.667454][ T8382] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.667473][ T8382] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 455.667498][ T8382] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 455.667534][ T8382] gfs2_get_tree+0x51/0x1e0
[ 455.667558][ T8382] vfs_get_tree+0x92/0x2a0
[ 455.667586][ T8382] do_new_mount+0x341/0xd30
[ 455.667607][ T8382] ? apparmor_capable+0x126/0x170
[ 455.667634][ T8382] ? __pfx_do_new_mount+0x10/0x10
[ 455.667654][ T8382] ? ns_capable+0x89/0xe0
[ 455.667683][ T8382] ? user_path_at+0xd4/0x160
[ 455.667714][ T8382] ? user_path_at+0xd4/0x160
[ 455.667737][ T8382] __se_sys_mount+0x31d/0x420
[ 455.667762][ T8382] ? __pfx___se_sys_mount+0x10/0x10
[ 455.667789][ T8382] ? __x64_sys_mount+0x20/0xc0
[ 455.667809][ T8382] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.667828][ T8382] do_syscall_64+0x15f/0xf80
[ 455.667846][ T8382] ? trace_irq_disable+0x3b/0x140
[ 455.667872][ T8382] ? clear_bhb_loop+0x40/0x90
[ 455.667895][ T8382] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.667913][ T8382] RIP: 0033:0x7ffa32018e8a
[ 455.667933][ T8382] 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
[ 455.667949][ T8382] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 455.667970][ T8382] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 455.667985][ T8382] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 455.667998][ T8382] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 455.668011][ T8382] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 455.668027][ T8382] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 455.668056][ T8382]
[ 455.680359][ T8382] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 455.680385][ T8382] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 455.836074][ T8374] loop2: detected capacity change from 0 to 32768
[ 455.889426][ T8378] loop0: detected capacity change from 0 to 32768
[ 455.914756][ T8374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 455.914773][ T8374] CPU: 0 UID: 0 PID: 8374 Comm: syz.2.423 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 455.914786][ T8374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 455.914794][ T8374] Call Trace:
[ 455.914800][ T8374]
[ 455.914807][ T8374] dump_stack_lvl+0xe8/0x150
[ 455.914834][ T8374] sysfs_create_dir_ns+0x271/0x2a0
[ 455.914858][ T8374] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 455.914886][ T8374] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 455.914912][ T8374] ? rt_spin_unlock+0x160/0x200
[ 455.914939][ T8374] kobject_add_internal+0x631/0xd10
[ 455.914970][ T8374] kobject_init_and_add+0x12b/0x1a0
[ 455.915000][ T8374] ? __pfx_kobject_init_and_add+0x10/0x10
[ 455.915026][ T8374] ? __raw_spin_lock_init+0x45/0x100
[ 455.915054][ T8374] ? __init_swait_queue_head+0xa9/0x150
[ 455.915084][ T8374] gfs2_sys_fs_add+0x257/0x480
[ 455.915108][ T8374] ? is_dynamic_key+0x1ac/0x1c0
[ 455.915127][ T8374] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 455.915159][ T8374] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 455.915191][ T8374] gfs2_fill_super+0x141c/0x2220
[ 455.915225][ T8374] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.915243][ T8374] ? rt_spin_unlock+0x14f/0x200
[ 455.915272][ T8374] ? sb_set_blocksize+0x11b/0x210
[ 455.915293][ T8374] ? setup_bdev_super+0x4c1/0x5b0
[ 455.915326][ T8374] get_tree_bdev_flags+0x431/0x4f0
[ 455.915354][ T8374] ? __pfx_gfs2_fill_super+0x10/0x10
[ 455.915374][ T8374] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 455.915405][ T8374] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 455.915440][ T8374] gfs2_get_tree+0x51/0x1e0
[ 455.915463][ T8374] vfs_get_tree+0x92/0x2a0
[ 455.915492][ T8374] do_new_mount+0x341/0xd30
[ 455.915511][ T8374] ? apparmor_capable+0x126/0x170
[ 455.915537][ T8374] ? __pfx_do_new_mount+0x10/0x10
[ 455.915557][ T8374] ? ns_capable+0x89/0xe0
[ 455.915585][ T8374] ? user_path_at+0xd4/0x160
[ 455.915612][ T8374] ? user_path_at+0xd4/0x160
[ 455.915637][ T8374] __se_sys_mount+0x31d/0x420
[ 455.915665][ T8374] ? __pfx___se_sys_mount+0x10/0x10
[ 455.915693][ T8374] ? __x64_sys_mount+0x20/0xc0
[ 455.915712][ T8374] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.915729][ T8374] do_syscall_64+0x15f/0xf80
[ 455.915748][ T8374] ? trace_irq_disable+0x3b/0x140
[ 455.915772][ T8374] ? clear_bhb_loop+0x40/0x90
[ 455.915794][ T8374] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 455.915812][ T8374] RIP: 0033:0x7fcd15ca8e8a
[ 455.915831][ T8374] 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
[ 455.915848][ T8374] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 455.915868][ T8374] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 455.915882][ T8374] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 455.915894][ T8374] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 455.915905][ T8374] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 455.915918][ T8374] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 455.915947][ T8374]
[ 455.915990][ T8374] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 455.916004][ T8374] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 456.053363][ T8378] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 456.053388][ T8378] CPU: 0 UID: 0 PID: 8378 Comm: syz.0.422 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 456.053409][ T8378] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 456.053419][ T8378] Call Trace:
[ 456.053427][ T8378]
[ 456.053435][ T8378] dump_stack_lvl+0xe8/0x150
[ 456.053466][ T8378] sysfs_create_dir_ns+0x271/0x2a0
[ 456.053489][ T8378] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 456.053516][ T8378] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 456.053541][ T8378] ? rt_spin_unlock+0x160/0x200
[ 456.053568][ T8378] kobject_add_internal+0x631/0xd10
[ 456.053599][ T8378] kobject_init_and_add+0x12b/0x1a0
[ 456.053627][ T8378] ? __pfx_kobject_init_and_add+0x10/0x10
[ 456.053652][ T8378] ? __raw_spin_lock_init+0x45/0x100
[ 456.053680][ T8378] ? __init_swait_queue_head+0xa9/0x150
[ 456.053710][ T8378] gfs2_sys_fs_add+0x257/0x480
[ 456.053733][ T8378] ? is_dynamic_key+0x1ac/0x1c0
[ 456.053753][ T8378] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 456.053785][ T8378] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 456.053817][ T8378] gfs2_fill_super+0x141c/0x2220
[ 456.053851][ T8378] ? __pfx_gfs2_fill_super+0x10/0x10
[ 456.053868][ T8378] ? rt_spin_unlock+0x14f/0x200
[ 456.053896][ T8378] ? sb_set_blocksize+0x11b/0x210
[ 456.053917][ T8378] ? setup_bdev_super+0x4c1/0x5b0
[ 456.053946][ T8378] get_tree_bdev_flags+0x431/0x4f0
[ 456.053972][ T8378] ? __pfx_gfs2_fill_super+0x10/0x10
[ 456.053991][ T8378] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 456.054015][ T8378] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 456.054072][ T8378] gfs2_get_tree+0x51/0x1e0
[ 456.054095][ T8378] vfs_get_tree+0x92/0x2a0
[ 456.054122][ T8378] do_new_mount+0x341/0xd30
[ 456.054143][ T8378] ? apparmor_capable+0x126/0x170
[ 456.054168][ T8378] ? __pfx_do_new_mount+0x10/0x10
[ 456.054189][ T8378] ? ns_capable+0x89/0xe0
[ 456.054218][ T8378] ? user_path_at+0xd4/0x160
[ 456.054245][ T8378] ? user_path_at+0xd4/0x160
[ 456.054270][ T8378] __se_sys_mount+0x31d/0x420
[ 456.054296][ T8378] ? __pfx___se_sys_mount+0x10/0x10
[ 456.054325][ T8378] ? __x64_sys_mount+0x20/0xc0
[ 456.054346][ T8378] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 456.054370][ T8378] do_syscall_64+0x15f/0xf80
[ 456.054389][ T8378] ? trace_irq_disable+0x3b/0x140
[ 456.054415][ T8378] ? clear_bhb_loop+0x40/0x90
[ 456.054437][ T8378] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 456.054455][ T8378] RIP: 0033:0x7fc5b8848e8a
[ 456.054473][ T8378] 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
[ 456.054488][ T8378] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 456.054508][ T8378] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 456.054521][ T8378] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 456.054534][ T8378] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 456.054547][ T8378] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 456.054559][ T8378] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 456.054588][ T8378]
[ 456.054613][ T8378] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 456.065854][ T8378] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 456.352450][ T5342] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 791ms
[ 456.386537][ T5342] gfs2: fsid=syz:syz.0: jid=0: Done
[ 456.387817][ T8376] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 456.469283][ T8376] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 456.469304][ T8376] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 456.469333][ T8376] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 456.469369][ T8376] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8376 [syz.1.421] iterate_dir+0x3a5/0x580
[ 456.469401][ T8376] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 456.469428][ T8376] CPU: 0 UID: 0 PID: 8376 Comm: syz.1.421 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 456.469448][ T8376] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 456.469460][ T8376] Call Trace:
[ 456.469467][ T8376]
[ 456.469475][ T8376] dump_stack_lvl+0xe8/0x150
[ 456.469501][ T8376] gfs2_withdraw+0xc3/0x1b0
[ 456.469523][ T8376] gfs2_dirent_scan+0x545/0x690
[ 456.469545][ T8376] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 456.469568][ T8376] gfs2_dir_read+0x78e/0x1760
[ 456.469593][ T8376] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 456.469619][ T8376] ? __pfx_inode_dio_wait+0x10/0x10
[ 456.469653][ T8376] ? __pfx_gfs2_dir_read+0x10/0x10
[ 456.469684][ T8376] ? gfs2_glock_wait+0x212/0x2a0
[ 456.469707][ T8376] gfs2_readdir+0x16c/0x1e0
[ 456.469727][ T8376] ? __pfx_gfs2_readdir+0x10/0x10
[ 456.469743][ T8376] ? down_read_killable+0x14c/0x220
[ 456.469767][ T8376] ? iterate_dir+0x3a5/0x580
[ 456.469785][ T8376] ? apparmor_file_permission+0x1f4/0x300
[ 456.469816][ T8376] iterate_dir+0x3a5/0x580
[ 456.469838][ T8376] __se_sys_getdents+0xf1/0x270
[ 456.469859][ T8376] ? __pfx___se_sys_getdents+0x10/0x10
[ 456.469876][ T8376] ? __pfx_filldir+0x10/0x10
[ 456.469899][ T8376] ? rcu_is_watching+0x15/0xb0
[ 456.469931][ T8376] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 456.469950][ T8376] do_syscall_64+0x15f/0xf80
[ 456.469970][ T8376] ? trace_irq_disable+0x3b/0x140
[ 456.469997][ T8376] ? clear_bhb_loop+0x40/0x90
[ 456.470019][ T8376] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 456.470037][ T8376] RIP: 0033:0x7f29bbb27be9
[ 456.470054][ T8376] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 456.470070][ T8376] RSP: 002b:00007f29bad9e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 456.470091][ T8376] RAX: ffffffffffffffda RBX: 00007f29bbcf5f80 RCX: 00007f29bbb27be9
[ 456.470105][ T8376] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 456.470116][ T8376] RBP: 00007f29bbbab2bf R08: 0000000000000000 R09: 0000000000000000
[ 456.470128][ T8376] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 456.470140][ T8376] R13: 0000000000000000 R14: 00007f29bbcf5f80 R15: 00007fff9ed85498
[ 456.470168][ T8376]
[ 456.492609][ T8376] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 456.523245][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 457.552729][ T8384] loop3: detected capacity change from 0 to 32768
[ 457.645314][ T8384] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 457.645334][ T8384] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 457.858733][ T8384] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 457.883385][ T37] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 457.883406][ T37] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 458.257556][ T37] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 374ms
[ 458.265788][ T37] gfs2: fsid=syz:syz.0: jid=0: Done
[ 458.271061][ T8384] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 458.819197][ T8394] loop4: detected capacity change from 0 to 32768
[ 458.848778][ T8394] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 458.848798][ T8394] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 458.917445][ T8394] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 458.948323][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 458.948343][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 459.006728][ T8396] loop2: detected capacity change from 0 to 32768
[ 459.024631][ T8396] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 459.024655][ T8396] CPU: 1 UID: 0 PID: 8396 Comm: syz.2.427 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 459.024677][ T8396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 459.024688][ T8396] Call Trace:
[ 459.024696][ T8396]
[ 459.024704][ T8396] dump_stack_lvl+0xe8/0x150
[ 459.024734][ T8396] sysfs_create_dir_ns+0x271/0x2a0
[ 459.024759][ T8396] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 459.024785][ T8396] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 459.024809][ T8396] ? rt_spin_unlock+0x160/0x200
[ 459.024841][ T8396] kobject_add_internal+0x631/0xd10
[ 459.024870][ T8396] kobject_init_and_add+0x12b/0x1a0
[ 459.024903][ T8396] ? __pfx_kobject_init_and_add+0x10/0x10
[ 459.024927][ T8396] ? __raw_spin_lock_init+0x45/0x100
[ 459.024953][ T8396] ? __init_swait_queue_head+0xa9/0x150
[ 459.024981][ T8396] gfs2_sys_fs_add+0x257/0x480
[ 459.025005][ T8396] ? is_dynamic_key+0x1ac/0x1c0
[ 459.025024][ T8396] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 459.025053][ T8396] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 459.025085][ T8396] gfs2_fill_super+0x141c/0x2220
2026/05/06 19:25:41 executed programs: 426
[ 459.025119][ T8396] ? __pfx_gfs2_fill_super+0x10/0x10
[ 459.025137][ T8396] ? rt_spin_unlock+0x14f/0x200
[ 459.025165][ T8396] ? sb_set_blocksize+0x11b/0x210
[ 459.025184][ T8396] ? setup_bdev_super+0x4c1/0x5b0
[ 459.025219][ T8396] get_tree_bdev_flags+0x431/0x4f0
[ 459.025246][ T8396] ? __pfx_gfs2_fill_super+0x10/0x10
[ 459.025265][ T8396] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 459.025290][ T8396] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 459.025326][ T8396] gfs2_get_tree+0x51/0x1e0
[ 459.025348][ T8396] vfs_get_tree+0x92/0x2a0
[ 459.025375][ T8396] do_new_mount+0x341/0xd30
[ 459.025393][ T8396] ? apparmor_capable+0x126/0x170
[ 459.025420][ T8396] ? __pfx_do_new_mount+0x10/0x10
[ 459.025441][ T8396] ? ns_capable+0x89/0xe0
[ 459.025467][ T8396] ? user_path_at+0xd4/0x160
[ 459.025495][ T8396] ? user_path_at+0xd4/0x160
[ 459.025519][ T8396] __se_sys_mount+0x31d/0x420
[ 459.025545][ T8396] ? __pfx___se_sys_mount+0x10/0x10
[ 459.025572][ T8396] ? __x64_sys_mount+0x20/0xc0
[ 459.025593][ T8396] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 459.025613][ T8396] do_syscall_64+0x15f/0xf80
[ 459.025631][ T8396] ? trace_irq_disable+0x3b/0x140
[ 459.025658][ T8396] ? clear_bhb_loop+0x40/0x90
[ 459.025677][ T8396] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 459.025695][ T8396] RIP: 0033:0x7fcd15ca8e8a
[ 459.025713][ T8396] 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
[ 459.025729][ T8396] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 459.025748][ T8396] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 459.025761][ T8396] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 459.025773][ T8396] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 459.025786][ T8396] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 459.025798][ T8396] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 459.025834][ T8396]
[ 459.027920][ T8396] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 459.027942][ T8396] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 459.392543][ T8398] loop0: detected capacity change from 0 to 32768
[ 459.402156][ T8398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 459.402179][ T8398] CPU: 1 UID: 0 PID: 8398 Comm: syz.0.428 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 459.402201][ T8398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 459.402212][ T8398] Call Trace:
[ 459.402219][ T8398]
[ 459.402226][ T8398] dump_stack_lvl+0xe8/0x150
[ 459.402253][ T8398] sysfs_create_dir_ns+0x271/0x2a0
[ 459.402276][ T8398] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 459.402310][ T8398] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 459.402336][ T8398] ? rt_spin_unlock+0x160/0x200
[ 459.402362][ T8398] kobject_add_internal+0x631/0xd10
[ 459.402393][ T8398] kobject_init_and_add+0x12b/0x1a0
[ 459.402421][ T8398] ? __pfx_kobject_init_and_add+0x10/0x10
[ 459.402446][ T8398] ? __raw_spin_lock_init+0x45/0x100
[ 459.402473][ T8398] ? __init_swait_queue_head+0xa9/0x150
[ 459.402503][ T8398] gfs2_sys_fs_add+0x257/0x480
[ 459.402527][ T8398] ? is_dynamic_key+0x1ac/0x1c0
[ 459.402547][ T8398] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 459.402578][ T8398] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 459.402614][ T8398] gfs2_fill_super+0x141c/0x2220
[ 459.402647][ T8398] ? __pfx_gfs2_fill_super+0x10/0x10
[ 459.402664][ T8398] ? rt_spin_unlock+0x14f/0x200
[ 459.402692][ T8398] ? sb_set_blocksize+0x11b/0x210
[ 459.402713][ T8398] ? setup_bdev_super+0x4c1/0x5b0
[ 459.402742][ T8398] get_tree_bdev_flags+0x431/0x4f0
[ 459.402769][ T8398] ? __pfx_gfs2_fill_super+0x10/0x10
[ 459.402787][ T8398] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 459.402811][ T8398] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 459.402845][ T8398] gfs2_get_tree+0x51/0x1e0
[ 459.402867][ T8398] vfs_get_tree+0x92/0x2a0
[ 459.402895][ T8398] do_new_mount+0x341/0xd30
[ 459.402914][ T8398] ? apparmor_capable+0x126/0x170
[ 459.402941][ T8398] ? __pfx_do_new_mount+0x10/0x10
[ 459.402963][ T8398] ? ns_capable+0x89/0xe0
[ 459.402990][ T8398] ? user_path_at+0xd4/0x160
[ 459.403017][ T8398] ? user_path_at+0xd4/0x160
[ 459.403049][ T8398] __se_sys_mount+0x31d/0x420
[ 459.403076][ T8398] ? __pfx___se_sys_mount+0x10/0x10
[ 459.403103][ T8398] ? __x64_sys_mount+0x20/0xc0
[ 459.403124][ T8398] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 459.403144][ T8398] do_syscall_64+0x15f/0xf80
[ 459.403164][ T8398] ? trace_irq_disable+0x3b/0x140
[ 459.403190][ T8398] ? clear_bhb_loop+0x40/0x90
[ 459.403212][ T8398] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 459.403230][ T8398] RIP: 0033:0x7fc5b8848e8a
[ 459.403249][ T8398] 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
[ 459.403265][ T8398] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 459.403285][ T8398] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 459.403298][ T8398] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 459.403311][ T8398] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 459.403323][ T8398] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 459.403335][ T8398] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 459.403364][ T8398]
[ 459.405119][ T8398] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 459.405138][ T8398] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 459.873292][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 924ms
[ 459.876128][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 459.876235][ T8394] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 460.001972][ T8402] loop1: detected capacity change from 0 to 32768
[ 460.058041][ T8402] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 460.058064][ T8402] CPU: 1 UID: 0 PID: 8402 Comm: syz.1.429 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 460.058087][ T8402] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 460.058099][ T8402] Call Trace:
[ 460.058107][ T8402]
[ 460.058115][ T8402] dump_stack_lvl+0xe8/0x150
[ 460.058145][ T8402] sysfs_create_dir_ns+0x271/0x2a0
[ 460.058170][ T8402] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 460.058197][ T8402] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 460.058224][ T8402] ? rt_spin_unlock+0x160/0x200
[ 460.058251][ T8402] kobject_add_internal+0x631/0xd10
[ 460.058284][ T8402] kobject_init_and_add+0x12b/0x1a0
[ 460.058313][ T8402] ? __pfx_kobject_init_and_add+0x10/0x10
[ 460.058340][ T8402] ? __raw_spin_lock_init+0x45/0x100
[ 460.058369][ T8402] ? __init_swait_queue_head+0xa9/0x150
[ 460.058400][ T8402] gfs2_sys_fs_add+0x257/0x480
[ 460.058424][ T8402] ? is_dynamic_key+0x1ac/0x1c0
[ 460.058445][ T8402] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 460.058478][ T8402] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 460.058512][ T8402] gfs2_fill_super+0x141c/0x2220
[ 460.058545][ T8402] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.058562][ T8402] ? rt_spin_unlock+0x14f/0x200
[ 460.058588][ T8402] ? sb_set_blocksize+0x11b/0x210
[ 460.058607][ T8402] ? setup_bdev_super+0x4c1/0x5b0
[ 460.058636][ T8402] get_tree_bdev_flags+0x431/0x4f0
[ 460.058661][ T8402] ? __pfx_gfs2_fill_super+0x10/0x10
[ 460.058679][ T8402] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 460.058713][ T8402] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 460.058750][ T8402] gfs2_get_tree+0x51/0x1e0
[ 460.058773][ T8402] vfs_get_tree+0x92/0x2a0
[ 460.058803][ T8402] do_new_mount+0x341/0xd30
[ 460.058823][ T8402] ? apparmor_capable+0x126/0x170
[ 460.058850][ T8402] ? __pfx_do_new_mount+0x10/0x10
[ 460.058872][ T8402] ? ns_capable+0x89/0xe0
[ 460.058901][ T8402] ? user_path_at+0xd4/0x160
[ 460.058928][ T8402] ? user_path_at+0xd4/0x160
[ 460.058954][ T8402] __se_sys_mount+0x31d/0x420
[ 460.058982][ T8402] ? __pfx___se_sys_mount+0x10/0x10
[ 460.059010][ T8402] ? __x64_sys_mount+0x20/0xc0
[ 460.059031][ T8402] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.059052][ T8402] do_syscall_64+0x15f/0xf80
[ 460.059072][ T8402] ? trace_irq_disable+0x3b/0x140
[ 460.059098][ T8402] ? clear_bhb_loop+0x40/0x90
[ 460.059122][ T8402] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 460.059140][ T8402] RIP: 0033:0x7f29bbb28e8a
[ 460.059159][ T8402] 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
[ 460.059175][ T8402] RSP: 002b:00007f29bad9de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 460.059195][ T8402] RAX: ffffffffffffffda RBX: 00007f29bad9dee0 RCX: 00007f29bbb28e8a
[ 460.059209][ T8402] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f29bad9dea0
[ 460.059222][ T8402] RBP: 0000000020000000 R08: 00007f29bad9dee0 R09: 0000000000208c1b
[ 460.059236][ T8402] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 460.059248][ T8402] R13: 00007f29bad9dea0 R14: 0000000000012752 R15: 0000000020013100
[ 460.059279][ T8402]
[ 460.059306][ T8402] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 460.059321][ T8402] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 461.541686][ T8404] loop3: detected capacity change from 0 to 32768
[ 461.564254][ T8404] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 461.564274][ T8404] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 461.639997][ T8414] loop0: detected capacity change from 0 to 32768
[ 461.654242][ T8404] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 461.667081][ T8414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 461.667107][ T8414] CPU: 0 UID: 0 PID: 8414 Comm: syz.0.432 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 461.667130][ T8414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 461.667142][ T8414] Call Trace:
[ 461.667150][ T8414]
[ 461.667158][ T8414] dump_stack_lvl+0xe8/0x150
[ 461.667189][ T8414] sysfs_create_dir_ns+0x271/0x2a0
[ 461.667215][ T8414] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 461.667243][ T8414] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 461.667270][ T8414] ? rt_spin_unlock+0x160/0x200
[ 461.667299][ T8414] kobject_add_internal+0x631/0xd10
[ 461.667333][ T8414] kobject_init_and_add+0x12b/0x1a0
[ 461.667362][ T8414] ? __pfx_kobject_init_and_add+0x10/0x10
[ 461.667386][ T8414] ? __raw_spin_lock_init+0x45/0x100
[ 461.667415][ T8414] ? __init_swait_queue_head+0xa9/0x150
[ 461.667447][ T8414] gfs2_sys_fs_add+0x257/0x480
[ 461.667496][ T8414] ? is_dynamic_key+0x1ac/0x1c0
[ 461.667519][ T8414] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 461.667551][ T8414] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 461.667584][ T8414] gfs2_fill_super+0x141c/0x2220
[ 461.667620][ T8414] ? __pfx_gfs2_fill_super+0x10/0x10
[ 461.667639][ T8414] ? rt_spin_unlock+0x14f/0x200
[ 461.667668][ T8414] ? sb_set_blocksize+0x11b/0x210
[ 461.667691][ T8414] ? setup_bdev_super+0x4c1/0x5b0
[ 461.667723][ T8414] get_tree_bdev_flags+0x431/0x4f0
[ 461.667747][ T8414] ? __pfx_gfs2_fill_super+0x10/0x10
[ 461.667764][ T8414] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 461.667786][ T8414] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 461.667827][ T8414] gfs2_get_tree+0x51/0x1e0
[ 461.667849][ T8414] vfs_get_tree+0x92/0x2a0
[ 461.667875][ T8414] do_new_mount+0x341/0xd30
[ 461.667894][ T8414] ? apparmor_capable+0x126/0x170
[ 461.667919][ T8414] ? __pfx_do_new_mount+0x10/0x10
[ 461.667940][ T8414] ? ns_capable+0x89/0xe0
[ 461.667969][ T8414] ? user_path_at+0xd4/0x160
[ 461.667999][ T8414] ? user_path_at+0xd4/0x160
[ 461.668025][ T8414] __se_sys_mount+0x31d/0x420
[ 461.668054][ T8414] ? __pfx___se_sys_mount+0x10/0x10
[ 461.668083][ T8414] ? __x64_sys_mount+0x20/0xc0
[ 461.668104][ T8414] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 461.668126][ T8414] do_syscall_64+0x15f/0xf80
[ 461.668147][ T8414] ? trace_irq_disable+0x3b/0x140
[ 461.668174][ T8414] ? clear_bhb_loop+0x40/0x90
[ 461.668197][ T8414] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 461.668216][ T8414] RIP: 0033:0x7fc5b8848e8a
[ 461.668236][ T8414] 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
[ 461.668252][ T8414] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 461.668273][ T8414] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 461.668288][ T8414] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 461.668301][ T8414] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 461.668314][ T8414] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 461.668327][ T8414] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 461.668357][ T8414]
[ 461.700368][ T8414] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 461.700393][ T8414] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 461.777098][ T37] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 461.777117][ T37] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 461.976274][ T8410] loop2: detected capacity change from 0 to 32768
[ 462.074053][ T8410] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 462.074075][ T8410] CPU: 0 UID: 0 PID: 8410 Comm: syz.2.431 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 462.074098][ T8410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 462.074109][ T8410] Call Trace:
[ 462.074116][ T8410]
[ 462.074125][ T8410] dump_stack_lvl+0xe8/0x150
[ 462.074155][ T8410] sysfs_create_dir_ns+0x271/0x2a0
[ 462.074180][ T8410] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 462.074208][ T8410] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 462.074234][ T8410] ? rt_spin_unlock+0x160/0x200
[ 462.074262][ T8410] kobject_add_internal+0x631/0xd10
[ 462.074295][ T8410] kobject_init_and_add+0x12b/0x1a0
[ 462.074325][ T8410] ? __pfx_kobject_init_and_add+0x10/0x10
[ 462.074352][ T8410] ? __raw_spin_lock_init+0x45/0x100
[ 462.074385][ T8410] ? __init_swait_queue_head+0xa9/0x150
[ 462.074421][ T8410] gfs2_sys_fs_add+0x257/0x480
[ 462.074446][ T8410] ? is_dynamic_key+0x1ac/0x1c0
[ 462.074466][ T8410] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 462.074498][ T8410] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 462.074531][ T8410] gfs2_fill_super+0x141c/0x2220
[ 462.074566][ T8410] ? __pfx_gfs2_fill_super+0x10/0x10
[ 462.074585][ T8410] ? rt_spin_unlock+0x14f/0x200
[ 462.074656][ T8410] ? sb_set_blocksize+0x11b/0x210
[ 462.074675][ T8410] ? setup_bdev_super+0x4c1/0x5b0
[ 462.074703][ T8410] get_tree_bdev_flags+0x431/0x4f0
[ 462.074728][ T8410] ? __pfx_gfs2_fill_super+0x10/0x10
[ 462.074757][ T8410] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 462.074789][ T8410] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 462.074826][ T8410] gfs2_get_tree+0x51/0x1e0
[ 462.074850][ T8410] vfs_get_tree+0x92/0x2a0
[ 462.074879][ T8410] do_new_mount+0x341/0xd30
[ 462.074899][ T8410] ? apparmor_capable+0x126/0x170
[ 462.074936][ T8410] ? __pfx_do_new_mount+0x10/0x10
[ 462.074958][ T8410] ? ns_capable+0x89/0xe0
[ 462.074987][ T8410] ? user_path_at+0xd4/0x160
[ 462.075016][ T8410] ? user_path_at+0xd4/0x160
[ 462.075043][ T8410] __se_sys_mount+0x31d/0x420
[ 462.075071][ T8410] ? __pfx___se_sys_mount+0x10/0x10
[ 462.075100][ T8410] ? __x64_sys_mount+0x20/0xc0
[ 462.075122][ T8410] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 462.075143][ T8410] do_syscall_64+0x15f/0xf80
[ 462.075163][ T8410] ? trace_irq_disable+0x3b/0x140
[ 462.075191][ T8410] ? clear_bhb_loop+0x40/0x90
[ 462.075213][ T8410] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 462.075232][ T8410] RIP: 0033:0x7fcd15ca8e8a
[ 462.075251][ T8410] 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
[ 462.075268][ T8410] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 462.075288][ T8410] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 462.075303][ T8410] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 462.075316][ T8410] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 462.075329][ T8410] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 462.075341][ T8410] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 462.075371][ T8410]
[ 462.076945][ T8410] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 462.076964][ T8410] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 462.460788][ T37] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 683ms
[ 462.467055][ T37] gfs2: fsid=syz:syz.0: jid=0: Done
[ 462.474927][ T8404] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 462.705290][ T8418] loop1: detected capacity change from 0 to 32768
[ 462.793472][ T8418] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 462.793493][ T8418] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 462.937500][ T8418] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 462.977953][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 462.977972][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 463.217375][ T8420] loop4: detected capacity change from 0 to 32768
[ 463.239932][ T8420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 463.239954][ T8420] CPU: 1 UID: 0 PID: 8420 Comm: syz.4.433 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 463.239976][ T8420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 463.239987][ T8420] Call Trace:
[ 463.239994][ T8420]
[ 463.240002][ T8420] dump_stack_lvl+0xe8/0x150
[ 463.240031][ T8420] sysfs_create_dir_ns+0x271/0x2a0
[ 463.240055][ T8420] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 463.240082][ T8420] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 463.240108][ T8420] ? rt_spin_unlock+0x160/0x200
[ 463.240134][ T8420] kobject_add_internal+0x631/0xd10
[ 463.240165][ T8420] kobject_init_and_add+0x12b/0x1a0
[ 463.240193][ T8420] ? __pfx_kobject_init_and_add+0x10/0x10
[ 463.240218][ T8420] ? __raw_spin_lock_init+0x45/0x100
[ 463.240245][ T8420] ? __init_swait_queue_head+0xa9/0x150
[ 463.240275][ T8420] gfs2_sys_fs_add+0x257/0x480
[ 463.240296][ T8420] ? is_dynamic_key+0x1ac/0x1c0
[ 463.240316][ T8420] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 463.240347][ T8420] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 463.240380][ T8420] gfs2_fill_super+0x141c/0x2220
[ 463.240415][ T8420] ? __pfx_gfs2_fill_super+0x10/0x10
[ 463.240443][ T8420] ? rt_spin_unlock+0x14f/0x200
[ 463.240471][ T8420] ? sb_set_blocksize+0x11b/0x210
[ 463.240492][ T8420] ? setup_bdev_super+0x4c1/0x5b0
[ 463.240519][ T8420] get_tree_bdev_flags+0x431/0x4f0
[ 463.240543][ T8420] ? __pfx_gfs2_fill_super+0x10/0x10
[ 463.240560][ T8420] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 463.240584][ T8420] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 463.240619][ T8420] gfs2_get_tree+0x51/0x1e0
[ 463.240640][ T8420] vfs_get_tree+0x92/0x2a0
[ 463.240673][ T8420] do_new_mount+0x341/0xd30
[ 463.240693][ T8420] ? apparmor_capable+0x126/0x170
[ 463.240719][ T8420] ? __pfx_do_new_mount+0x10/0x10
[ 463.240740][ T8420] ? ns_capable+0x89/0xe0
[ 463.240768][ T8420] ? user_path_at+0xd4/0x160
[ 463.240795][ T8420] ? user_path_at+0xd4/0x160
[ 463.240821][ T8420] __se_sys_mount+0x31d/0x420
[ 463.240848][ T8420] ? __pfx___se_sys_mount+0x10/0x10
[ 463.240876][ T8420] ? __x64_sys_mount+0x20/0xc0
[ 463.240896][ T8420] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 463.240916][ T8420] do_syscall_64+0x15f/0xf80
[ 463.240935][ T8420] ? trace_irq_disable+0x3b/0x140
[ 463.240961][ T8420] ? clear_bhb_loop+0x40/0x90
[ 463.240983][ T8420] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 463.241001][ T8420] RIP: 0033:0x7ffa32018e8a
[ 463.241019][ T8420] 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
[ 463.241035][ T8420] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 463.241055][ T8420] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 463.241069][ T8420] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 463.241082][ T8420] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 463.241094][ T8420] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 463.241106][ T8420] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 463.241134][ T8420]
[ 463.251954][ T8420] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 463.251976][ T8420] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 463.443871][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 465ms
[ 463.444184][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 463.444235][ T8418] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 464.615242][ T8428] loop2: detected capacity change from 0 to 32768
[ 464.671697][ T8428] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 464.671718][ T8428] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 464.746403][ T8428] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 464.776969][ T8432] loop0: detected capacity change from 0 to 32768
[ 464.789302][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 464.789330][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 464.826003][ T8432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 464.826026][ T8432] CPU: 1 UID: 0 PID: 8432 Comm: syz.0.437 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 464.826047][ T8432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 464.826058][ T8432] Call Trace:
[ 464.826065][ T8432]
[ 464.826072][ T8432] dump_stack_lvl+0xe8/0x150
[ 464.826100][ T8432] sysfs_create_dir_ns+0x271/0x2a0
[ 464.826122][ T8432] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 464.826148][ T8432] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 464.826183][ T8432] ? rt_spin_unlock+0x160/0x200
[ 464.826209][ T8432] kobject_add_internal+0x631/0xd10
[ 464.826242][ T8432] kobject_init_and_add+0x12b/0x1a0
[ 464.826267][ T8432] ? __pfx_kobject_init_and_add+0x10/0x10
[ 464.826480][ T8432] ? __raw_spin_lock_init+0x45/0x100
[ 464.826506][ T8432] ? __init_swait_queue_head+0xa9/0x150
[ 464.826535][ T8432] gfs2_sys_fs_add+0x257/0x480
[ 464.826559][ T8432] ? is_dynamic_key+0x1ac/0x1c0
[ 464.826577][ T8432] ? __pfx_gfs2_sys_fs_add+0x10/0x10
2026/05/06 19:25:46 executed programs: 435
[ 464.826605][ T8432] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 464.826634][ T8432] gfs2_fill_super+0x141c/0x2220
[ 464.826667][ T8432] ? __pfx_gfs2_fill_super+0x10/0x10
[ 464.826684][ T8432] ? rt_spin_unlock+0x14f/0x200
[ 464.826711][ T8432] ? sb_set_blocksize+0x11b/0x210
[ 464.826729][ T8432] ? setup_bdev_super+0x4c1/0x5b0
[ 464.826755][ T8432] get_tree_bdev_flags+0x431/0x4f0
[ 464.826782][ T8432] ? __pfx_gfs2_fill_super+0x10/0x10
[ 464.826800][ T8432] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 464.826823][ T8432] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 464.826855][ T8432] gfs2_get_tree+0x51/0x1e0
[ 464.826876][ T8432] vfs_get_tree+0x92/0x2a0
[ 464.826901][ T8432] do_new_mount+0x341/0xd30
[ 464.826921][ T8432] ? apparmor_capable+0x126/0x170
[ 464.826947][ T8432] ? __pfx_do_new_mount+0x10/0x10
[ 464.826969][ T8432] ? ns_capable+0x89/0xe0
[ 464.826994][ T8432] ? user_path_at+0xd4/0x160
[ 464.827019][ T8432] ? user_path_at+0xd4/0x160
[ 464.827043][ T8432] __se_sys_mount+0x31d/0x420
[ 464.827073][ T8432] ? __pfx___se_sys_mount+0x10/0x10
[ 464.827102][ T8432] ? __x64_sys_mount+0x20/0xc0
[ 464.827123][ T8432] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 464.827144][ T8432] do_syscall_64+0x15f/0xf80
[ 464.827164][ T8432] ? trace_irq_disable+0x3b/0x140
[ 464.827192][ T8432] ? clear_bhb_loop+0x40/0x90
[ 464.827215][ T8432] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 464.827235][ T8432] RIP: 0033:0x7fc5b8848e8a
[ 464.827253][ T8432] 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
[ 464.827270][ T8432] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 464.827300][ T8432] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 464.827314][ T8432] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 464.827326][ T8432] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 464.827339][ T8432] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 464.827351][ T8432] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 464.827380][ T8432]
[ 464.837889][ T8432] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 464.837912][ T8432] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 465.284947][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 495ms
[ 465.285261][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 465.285799][ T8428] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 465.300995][ T8436] loop4: detected capacity change from 0 to 32768
[ 465.323520][ T8436] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 465.323542][ T8436] CPU: 1 UID: 0 PID: 8436 Comm: syz.4.438 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 465.323565][ T8436] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 465.323577][ T8436] Call Trace:
[ 465.323584][ T8436]
[ 465.323593][ T8436] dump_stack_lvl+0xe8/0x150
[ 465.323624][ T8436] sysfs_create_dir_ns+0x271/0x2a0
[ 465.323649][ T8436] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 465.323678][ T8436] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 465.323704][ T8436] ? rt_spin_unlock+0x160/0x200
[ 465.323732][ T8436] kobject_add_internal+0x631/0xd10
[ 465.323765][ T8436] kobject_init_and_add+0x12b/0x1a0
[ 465.323795][ T8436] ? __pfx_kobject_init_and_add+0x10/0x10
[ 465.323821][ T8436] ? __raw_spin_lock_init+0x45/0x100
[ 465.323850][ T8436] ? __init_swait_queue_head+0xa9/0x150
[ 465.323880][ T8436] gfs2_sys_fs_add+0x257/0x480
[ 465.323905][ T8436] ? is_dynamic_key+0x1ac/0x1c0
[ 465.323926][ T8436] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 465.323959][ T8436] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 465.323993][ T8436] gfs2_fill_super+0x141c/0x2220
[ 465.324028][ T8436] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.324046][ T8436] ? rt_spin_unlock+0x14f/0x200
[ 465.324076][ T8436] ? sb_set_blocksize+0x11b/0x210
[ 465.324098][ T8436] ? setup_bdev_super+0x4c1/0x5b0
[ 465.324132][ T8436] get_tree_bdev_flags+0x431/0x4f0
[ 465.324160][ T8436] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.324180][ T8436] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 465.324212][ T8436] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 465.324248][ T8436] gfs2_get_tree+0x51/0x1e0
[ 465.324272][ T8436] vfs_get_tree+0x92/0x2a0
[ 465.324301][ T8436] do_new_mount+0x341/0xd30
[ 465.324326][ T8436] ? apparmor_capable+0x126/0x170
[ 465.324354][ T8436] ? __pfx_do_new_mount+0x10/0x10
[ 465.324376][ T8436] ? ns_capable+0x89/0xe0
[ 465.324405][ T8436] ? user_path_at+0xd4/0x160
[ 465.324433][ T8436] ? user_path_at+0xd4/0x160
[ 465.324468][ T8436] __se_sys_mount+0x31d/0x420
[ 465.324496][ T8436] ? __pfx___se_sys_mount+0x10/0x10
[ 465.324524][ T8436] ? __x64_sys_mount+0x20/0xc0
[ 465.324546][ T8436] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.324566][ T8436] do_syscall_64+0x15f/0xf80
[ 465.324586][ T8436] ? trace_irq_disable+0x3b/0x140
[ 465.324613][ T8436] ? clear_bhb_loop+0x40/0x90
[ 465.324636][ T8436] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.324655][ T8436] RIP: 0033:0x7ffa32018e8a
[ 465.324674][ T8436] 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
[ 465.324690][ T8436] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 465.324711][ T8436] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 465.324725][ T8436] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 465.324739][ T8436] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 465.324751][ T8436] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 465.324763][ T8436] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 465.324793][ T8436]
[ 465.385295][ T8436] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 465.385317][ T8436] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 465.553543][ T8438] loop3: detected capacity change from 0 to 32768
[ 465.634259][ T8438] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 465.634283][ T8438] CPU: 1 UID: 0 PID: 8438 Comm: syz.3.436 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 465.634306][ T8438] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 465.634316][ T8438] Call Trace:
[ 465.634324][ T8438]
[ 465.634336][ T8438] dump_stack_lvl+0xe8/0x150
[ 465.634365][ T8438] sysfs_create_dir_ns+0x271/0x2a0
[ 465.634389][ T8438] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 465.634418][ T8438] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 465.634452][ T8438] ? rt_spin_unlock+0x160/0x200
[ 465.634479][ T8438] kobject_add_internal+0x631/0xd10
[ 465.634511][ T8438] kobject_init_and_add+0x12b/0x1a0
[ 465.634540][ T8438] ? __pfx_kobject_init_and_add+0x10/0x10
[ 465.634564][ T8438] ? __raw_spin_lock_init+0x45/0x100
[ 465.634591][ T8438] ? __init_swait_queue_head+0xa9/0x150
[ 465.634622][ T8438] gfs2_sys_fs_add+0x257/0x480
[ 465.634646][ T8438] ? is_dynamic_key+0x1ac/0x1c0
[ 465.634665][ T8438] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 465.634697][ T8438] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 465.634730][ T8438] gfs2_fill_super+0x141c/0x2220
[ 465.634763][ T8438] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.634781][ T8438] ? rt_spin_unlock+0x14f/0x200
[ 465.634809][ T8438] ? sb_set_blocksize+0x11b/0x210
[ 465.634830][ T8438] ? setup_bdev_super+0x4c1/0x5b0
[ 465.634859][ T8438] get_tree_bdev_flags+0x431/0x4f0
[ 465.634890][ T8438] ? __pfx_gfs2_fill_super+0x10/0x10
[ 465.634909][ T8438] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 465.634933][ T8438] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 465.634969][ T8438] gfs2_get_tree+0x51/0x1e0
[ 465.634991][ T8438] vfs_get_tree+0x92/0x2a0
[ 465.635020][ T8438] do_new_mount+0x341/0xd30
[ 465.635040][ T8438] ? apparmor_capable+0x126/0x170
[ 465.635066][ T8438] ? __pfx_do_new_mount+0x10/0x10
[ 465.635087][ T8438] ? ns_capable+0x89/0xe0
[ 465.635116][ T8438] ? user_path_at+0xd4/0x160
[ 465.635143][ T8438] ? user_path_at+0xd4/0x160
[ 465.635168][ T8438] __se_sys_mount+0x31d/0x420
[ 465.635195][ T8438] ? __pfx___se_sys_mount+0x10/0x10
[ 465.635222][ T8438] ? __x64_sys_mount+0x20/0xc0
[ 465.635242][ T8438] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.635263][ T8438] do_syscall_64+0x15f/0xf80
[ 465.635282][ T8438] ? trace_irq_disable+0x3b/0x140
[ 465.635308][ T8438] ? clear_bhb_loop+0x40/0x90
[ 465.635330][ T8438] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 465.635348][ T8438] RIP: 0033:0x7f6c6c118e8a
[ 465.635367][ T8438] 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
[ 465.635390][ T8438] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 465.635413][ T8438] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 465.635432][ T8438] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 465.635444][ T8438] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 465.635457][ T8438] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 465.635469][ T8438] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 465.635498][ T8438]
[ 465.646212][ T8438] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 465.646236][ T8438] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 466.834773][ T8440] loop1: detected capacity change from 0 to 32768
[ 466.893965][ T8440] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 466.893984][ T8440] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 466.941238][ T8440] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 466.996800][ T32] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 466.996822][ T32] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 467.170996][ T8446] loop0: detected capacity change from 0 to 32768
[ 467.214167][ T8446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 467.214194][ T8446] CPU: 1 UID: 0 PID: 8446 Comm: syz.0.440 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 467.214217][ T8446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 467.214228][ T8446] Call Trace:
[ 467.214236][ T8446]
[ 467.214244][ T8446] dump_stack_lvl+0xe8/0x150
[ 467.214289][ T8446] sysfs_create_dir_ns+0x271/0x2a0
[ 467.214314][ T8446] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 467.214342][ T8446] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 467.214369][ T8446] ? rt_spin_unlock+0x160/0x200
[ 467.214401][ T8446] kobject_add_internal+0x631/0xd10
[ 467.214434][ T8446] kobject_init_and_add+0x12b/0x1a0
[ 467.214464][ T8446] ? __pfx_kobject_init_and_add+0x10/0x10
[ 467.214490][ T8446] ? __raw_spin_lock_init+0x45/0x100
[ 467.214520][ T8446] ? __init_swait_queue_head+0xa9/0x150
[ 467.214551][ T8446] gfs2_sys_fs_add+0x257/0x480
[ 467.214579][ T8446] ? is_dynamic_key+0x1ac/0x1c0
[ 467.214600][ T8446] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 467.214633][ T8446] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 467.214668][ T8446] gfs2_fill_super+0x141c/0x2220
[ 467.214704][ T8446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 467.214723][ T8446] ? rt_spin_unlock+0x14f/0x200
[ 467.214751][ T8446] ? sb_set_blocksize+0x11b/0x210
[ 467.214774][ T8446] ? setup_bdev_super+0x4c1/0x5b0
[ 467.214804][ T8446] get_tree_bdev_flags+0x431/0x4f0
[ 467.214832][ T8446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 467.214853][ T8446] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 467.214877][ T8446] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 467.214923][ T8446] gfs2_get_tree+0x51/0x1e0
[ 467.214947][ T8446] vfs_get_tree+0x92/0x2a0
[ 467.214976][ T8446] do_new_mount+0x341/0xd30
[ 467.214997][ T8446] ? apparmor_capable+0x126/0x170
[ 467.215024][ T8446] ? __pfx_do_new_mount+0x10/0x10
[ 467.215052][ T8446] ? ns_capable+0x89/0xe0
[ 467.215082][ T8446] ? user_path_at+0xd4/0x160
[ 467.215110][ T8446] ? user_path_at+0xd4/0x160
[ 467.215137][ T8446] __se_sys_mount+0x31d/0x420
[ 467.215165][ T8446] ? __pfx___se_sys_mount+0x10/0x10
[ 467.215193][ T8446] ? __x64_sys_mount+0x20/0xc0
[ 467.215214][ T8446] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 467.215235][ T8446] do_syscall_64+0x15f/0xf80
[ 467.215255][ T8446] ? trace_irq_disable+0x3b/0x140
[ 467.215282][ T8446] ? clear_bhb_loop+0x40/0x90
[ 467.215305][ T8446] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 467.215324][ T8446] RIP: 0033:0x7fc5b8848e8a
[ 467.215343][ T8446] 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
[ 467.215360][ T8446] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 467.215380][ T8446] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 467.215394][ T8446] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 467.215408][ T8446] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 467.215420][ T8446] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 467.215432][ T8446] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 467.215462][ T8446]
[ 467.245206][ T32] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 248ms
[ 467.246292][ T32] gfs2: fsid=syz:syz.0: jid=0: Done
[ 467.246349][ T8440] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 467.247858][ T8446] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 467.248021][ T8446] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 467.266657][ T8440] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 467.266679][ T8440] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 467.266707][ T8440] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 467.266736][ T8440] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8440 [syz.1.439] iterate_dir+0x3a5/0x580
[ 467.266771][ T8440] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 467.266798][ T8440] CPU: 1 UID: 0 PID: 8440 Comm: syz.1.439 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 467.266823][ T8440] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 467.266835][ T8440] Call Trace:
[ 467.266843][ T8440]
[ 467.266851][ T8440] dump_stack_lvl+0xe8/0x150
[ 467.266877][ T8440] gfs2_withdraw+0xc3/0x1b0
[ 467.266899][ T8440] gfs2_dirent_scan+0x545/0x690
[ 467.266921][ T8440] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 467.266945][ T8440] gfs2_dir_read+0x78e/0x1760
[ 467.266969][ T8440] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 467.266997][ T8440] ? __pfx_inode_dio_wait+0x10/0x10
[ 467.267028][ T8440] ? __pfx_gfs2_dir_read+0x10/0x10
[ 467.267067][ T8440] ? gfs2_glock_wait+0x212/0x2a0
[ 467.267091][ T8440] gfs2_readdir+0x16c/0x1e0
[ 467.267112][ T8440] ? __pfx_gfs2_readdir+0x10/0x10
[ 467.267128][ T8440] ? down_read_killable+0x14c/0x220
[ 467.267152][ T8440] ? iterate_dir+0x3a5/0x580
[ 467.267170][ T8440] ? apparmor_file_permission+0x1f4/0x300
[ 467.267206][ T8440] iterate_dir+0x3a5/0x580
[ 467.267228][ T8440] __se_sys_getdents+0xf1/0x270
[ 467.267249][ T8440] ? __pfx___se_sys_getdents+0x10/0x10
[ 467.267266][ T8440] ? __pfx_filldir+0x10/0x10
[ 467.267285][ T8440] ? rcu_is_watching+0x15/0xb0
[ 467.267316][ T8440] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 467.267337][ T8440] do_syscall_64+0x15f/0xf80
[ 467.267356][ T8440] ? trace_irq_disable+0x3b/0x140
[ 467.267383][ T8440] ? clear_bhb_loop+0x40/0x90
[ 467.267405][ T8440] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 467.267424][ T8440] RIP: 0033:0x7f29bbb27be9
[ 467.267441][ T8440] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 467.267457][ T8440] RSP: 002b:00007f29bad9e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 467.267477][ T8440] RAX: ffffffffffffffda RBX: 00007f29bbcf5f80 RCX: 00007f29bbb27be9
[ 467.267491][ T8440] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 467.267502][ T8440] RBP: 00007f29bbbab2bf R08: 0000000000000000 R09: 0000000000000000
[ 467.267514][ T8440] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 467.267524][ T8440] R13: 0000000000000000 R14: 00007f29bbcf5f80 R15: 00007fff9ed85498
[ 467.267552][ T8440]
[ 467.267570][ T8440] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 467.267634][ T32] gfs2: fsid=syz:syz.0: file system withdrawn
[ 468.295160][ T8452] loop4: detected capacity change from 0 to 32768
[ 468.295447][ T8456] loop2: detected capacity change from 0 to 32768
[ 468.349693][ T8456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 468.349718][ T8456] CPU: 1 UID: 0 PID: 8456 Comm: syz.2.441 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 468.349742][ T8456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 468.349754][ T8456] Call Trace:
[ 468.349762][ T8456]
[ 468.349770][ T8456] dump_stack_lvl+0xe8/0x150
[ 468.349800][ T8456] sysfs_create_dir_ns+0x271/0x2a0
[ 468.349826][ T8456] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 468.349854][ T8456] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 468.349881][ T8456] ? rt_spin_unlock+0x160/0x200
[ 468.349908][ T8456] kobject_add_internal+0x631/0xd10
[ 468.349949][ T8456] kobject_init_and_add+0x12b/0x1a0
[ 468.349978][ T8456] ? __pfx_kobject_init_and_add+0x10/0x10
[ 468.350004][ T8456] ? __raw_spin_lock_init+0x45/0x100
[ 468.350033][ T8456] ? __init_swait_queue_head+0xa9/0x150
[ 468.350064][ T8456] gfs2_sys_fs_add+0x257/0x480
[ 468.350088][ T8456] ? is_dynamic_key+0x1ac/0x1c0
[ 468.350108][ T8456] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 468.350141][ T8456] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 468.350176][ T8456] gfs2_fill_super+0x141c/0x2220
[ 468.350211][ T8456] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.350229][ T8456] ? rt_spin_unlock+0x14f/0x200
[ 468.350258][ T8456] ? sb_set_blocksize+0x11b/0x210
[ 468.350280][ T8456] ? setup_bdev_super+0x4c1/0x5b0
[ 468.350310][ T8456] get_tree_bdev_flags+0x431/0x4f0
[ 468.350338][ T8456] ? __pfx_gfs2_fill_super+0x10/0x10
[ 468.350358][ T8456] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 468.350383][ T8456] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 468.350419][ T8456] gfs2_get_tree+0x51/0x1e0
[ 468.350443][ T8456] vfs_get_tree+0x92/0x2a0
[ 468.350471][ T8456] do_new_mount+0x341/0xd30
[ 468.350492][ T8456] ? apparmor_capable+0x126/0x170
[ 468.350520][ T8456] ? __pfx_do_new_mount+0x10/0x10
[ 468.350541][ T8456] ? ns_capable+0x89/0xe0
[ 468.350571][ T8456] ? user_path_at+0xd4/0x160
[ 468.350599][ T8456] ? user_path_at+0xd4/0x160
[ 468.350626][ T8456] __se_sys_mount+0x31d/0x420
[ 468.350654][ T8456] ? __pfx___se_sys_mount+0x10/0x10
[ 468.350683][ T8456] ? __x64_sys_mount+0x20/0xc0
[ 468.350704][ T8456] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.350725][ T8456] do_syscall_64+0x15f/0xf80
[ 468.350745][ T8456] ? trace_irq_disable+0x3b/0x140
[ 468.350772][ T8456] ? clear_bhb_loop+0x40/0x90
[ 468.350795][ T8456] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 468.350814][ T8456] RIP: 0033:0x7fcd15ca8e8a
[ 468.350833][ T8456] 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
[ 468.350849][ T8456] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 468.350870][ T8456] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 468.350884][ T8456] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 468.350897][ T8456] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 468.350911][ T8456] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 468.350924][ T8456] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 468.350960][ T8456]
[ 468.350999][ T8456] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 468.351015][ T8456] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 468.400982][ T8452] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 468.401001][ T8452] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 468.542281][ T8452] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 468.562039][ T32] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 468.562059][ T32] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 469.085790][ T32] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 523ms
[ 469.086040][ T32] gfs2: fsid=syz:syz.0: jid=0: Done
[ 469.087258][ T8452] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 469.155133][ T8452] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 469.155155][ T8452] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 469.155185][ T8452] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 469.155213][ T8452] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8452 [syz.4.442] iterate_dir+0x3a5/0x580
[ 469.155255][ T8452] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 469.155283][ T8452] CPU: 1 UID: 0 PID: 8452 Comm: syz.4.442 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 469.155304][ T8452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 469.155315][ T8452] Call Trace:
[ 469.155322][ T8452]
[ 469.155331][ T8452] dump_stack_lvl+0xe8/0x150
[ 469.155356][ T8452] gfs2_withdraw+0xc3/0x1b0
[ 469.155378][ T8452] gfs2_dirent_scan+0x545/0x690
[ 469.155403][ T8452] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 469.155427][ T8452] gfs2_dir_read+0x78e/0x1760
[ 469.155454][ T8452] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 469.155486][ T8452] ? __pfx_inode_dio_wait+0x10/0x10
[ 469.155520][ T8452] ? __pfx_gfs2_dir_read+0x10/0x10
[ 469.155552][ T8452] ? gfs2_glock_wait+0x212/0x2a0
[ 469.155576][ T8452] gfs2_readdir+0x16c/0x1e0
[ 469.155598][ T8452] ? __pfx_gfs2_readdir+0x10/0x10
[ 469.155615][ T8452] ? down_read_killable+0x14c/0x220
[ 469.155640][ T8452] ? iterate_dir+0x3a5/0x580
[ 469.155660][ T8452] ? apparmor_file_permission+0x1f4/0x300
[ 469.155691][ T8452] iterate_dir+0x3a5/0x580
[ 469.155715][ T8452] __se_sys_getdents+0xf1/0x270
[ 469.155737][ T8452] ? __pfx___se_sys_getdents+0x10/0x10
[ 469.155756][ T8452] ? __pfx_filldir+0x10/0x10
[ 469.155775][ T8452] ? rcu_is_watching+0x15/0xb0
[ 469.155807][ T8452] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.155826][ T8452] do_syscall_64+0x15f/0xf80
[ 469.155846][ T8452] ? trace_irq_disable+0x3b/0x140
[ 469.155873][ T8452] ? clear_bhb_loop+0x40/0x90
[ 469.155902][ T8452] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.155920][ T8452] RIP: 0033:0x7ffa32017be9
[ 469.155938][ T8452] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 469.155954][ T8452] RSP: 002b:00007ffa3128e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 469.155974][ T8452] RAX: ffffffffffffffda RBX: 00007ffa321e5f80 RCX: 00007ffa32017be9
[ 469.155988][ T8452] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 469.156000][ T8452] RBP: 00007ffa3209b2bf R08: 0000000000000000 R09: 0000000000000000
[ 469.156012][ T8452] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 469.156024][ T8452] R13: 0000000000000000 R14: 00007ffa321e5f80 R15: 00007ffd4ce3e7d8
[ 469.156054][ T8452]
[ 469.157136][ T8454] loop3: detected capacity change from 0 to 32768
[ 469.161487][ T8452] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 469.161568][ T32] gfs2: fsid=syz:syz.0: file system withdrawn
[ 469.193444][ T8454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 469.193467][ T8454] CPU: 1 UID: 0 PID: 8454 Comm: syz.3.443 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 469.193488][ T8454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 469.193500][ T8454] Call Trace:
[ 469.193507][ T8454]
[ 469.193515][ T8454] dump_stack_lvl+0xe8/0x150
[ 469.193544][ T8454] sysfs_create_dir_ns+0x271/0x2a0
[ 469.193568][ T8454] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 469.193595][ T8454] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 469.193621][ T8454] ? rt_spin_unlock+0x160/0x200
[ 469.193647][ T8454] kobject_add_internal+0x631/0xd10
[ 469.193679][ T8454] kobject_init_and_add+0x12b/0x1a0
[ 469.193711][ T8454] ? __pfx_kobject_init_and_add+0x10/0x10
[ 469.193736][ T8454] ? __raw_spin_lock_init+0x45/0x100
[ 469.193762][ T8454] ? __init_swait_queue_head+0xa9/0x150
[ 469.193793][ T8454] gfs2_sys_fs_add+0x257/0x480
[ 469.193816][ T8454] ? is_dynamic_key+0x1ac/0x1c0
[ 469.193836][ T8454] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 469.193867][ T8454] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 469.193898][ T8454] gfs2_fill_super+0x141c/0x2220
[ 469.193932][ T8454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 469.193949][ T8454] ? rt_spin_unlock+0x14f/0x200
[ 469.193976][ T8454] ? sb_set_blocksize+0x11b/0x210
[ 469.193997][ T8454] ? setup_bdev_super+0x4c1/0x5b0
[ 469.194026][ T8454] get_tree_bdev_flags+0x431/0x4f0
[ 469.194052][ T8454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 469.194071][ T8454] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 469.194094][ T8454] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 469.194136][ T8454] gfs2_get_tree+0x51/0x1e0
[ 469.194157][ T8454] vfs_get_tree+0x92/0x2a0
[ 469.194184][ T8454] do_new_mount+0x341/0xd30
[ 469.194204][ T8454] ? apparmor_capable+0x126/0x170
[ 469.194229][ T8454] ? __pfx_do_new_mount+0x10/0x10
[ 469.194250][ T8454] ? ns_capable+0x89/0xe0
[ 469.194279][ T8454] ? user_path_at+0xd4/0x160
[ 469.194305][ T8454] ? user_path_at+0xd4/0x160
[ 469.194330][ T8454] __se_sys_mount+0x31d/0x420
[ 469.194358][ T8454] ? __pfx___se_sys_mount+0x10/0x10
[ 469.194385][ T8454] ? __x64_sys_mount+0x20/0xc0
[ 469.194405][ T8454] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.194425][ T8454] do_syscall_64+0x15f/0xf80
[ 469.194445][ T8454] ? trace_irq_disable+0x3b/0x140
[ 469.194471][ T8454] ? clear_bhb_loop+0x40/0x90
[ 469.194493][ T8454] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 469.194511][ T8454] RIP: 0033:0x7f6c6c118e8a
[ 469.194528][ T8454] 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
[ 469.194544][ T8454] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 469.194564][ T8454] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 469.194578][ T8454] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 469.194591][ T8454] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 469.194604][ T8454] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 469.194616][ T8454] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 469.194644][ T8454]
[ 469.208578][ T8454] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 469.208602][ T8454] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 470.374252][ T8462] loop0: detected capacity change from 0 to 32768
[ 470.423582][ T8462] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 470.423604][ T8462] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 470.535390][ T8462] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 470.556717][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 470.556751][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 470.720077][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 163ms
[ 470.720365][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 470.721202][ T8462] gfs2: fsid=syz:syz.0: first mount done, others may mount
2026/05/06 19:25:52 executed programs: 444
[ 470.875419][ T8470] loop2: detected capacity change from 0 to 32768
[ 470.894886][ T8470] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 470.894909][ T8470] CPU: 0 UID: 0 PID: 8470 Comm: syz.2.446 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 470.894931][ T8470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 470.894941][ T8470] Call Trace:
[ 470.894948][ T8470]
[ 470.894964][ T8470] dump_stack_lvl+0xe8/0x150
[ 470.894993][ T8470] sysfs_create_dir_ns+0x271/0x2a0
[ 470.895018][ T8470] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 470.895043][ T8470] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 470.895067][ T8470] ? rt_spin_unlock+0x160/0x200
[ 470.895092][ T8470] kobject_add_internal+0x631/0xd10
[ 470.895121][ T8470] kobject_init_and_add+0x12b/0x1a0
[ 470.895148][ T8470] ? __pfx_kobject_init_and_add+0x10/0x10
[ 470.895171][ T8470] ? __raw_spin_lock_init+0x45/0x100
[ 470.895197][ T8470] ? __init_swait_queue_head+0xa9/0x150
[ 470.895227][ T8470] gfs2_sys_fs_add+0x257/0x480
[ 470.895252][ T8470] ? is_dynamic_key+0x1ac/0x1c0
[ 470.895273][ T8470] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 470.895306][ T8470] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 470.895341][ T8470] gfs2_fill_super+0x141c/0x2220
[ 470.895379][ T8470] ? __pfx_gfs2_fill_super+0x10/0x10
[ 470.895398][ T8470] ? rt_spin_unlock+0x14f/0x200
[ 470.895427][ T8470] ? sb_set_blocksize+0x11b/0x210
[ 470.895449][ T8470] ? setup_bdev_super+0x4c1/0x5b0
[ 470.895481][ T8470] get_tree_bdev_flags+0x431/0x4f0
[ 470.895509][ T8470] ? __pfx_gfs2_fill_super+0x10/0x10
[ 470.895529][ T8470] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 470.895555][ T8470] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 470.895591][ T8470] gfs2_get_tree+0x51/0x1e0
[ 470.895615][ T8470] vfs_get_tree+0x92/0x2a0
[ 470.895644][ T8470] do_new_mount+0x341/0xd30
[ 470.895665][ T8470] ? apparmor_capable+0x126/0x170
[ 470.895693][ T8470] ? __pfx_do_new_mount+0x10/0x10
[ 470.895714][ T8470] ? ns_capable+0x89/0xe0
[ 470.895745][ T8470] ? user_path_at+0xd4/0x160
[ 470.895773][ T8470] ? user_path_at+0xd4/0x160
[ 470.895799][ T8470] __se_sys_mount+0x31d/0x420
[ 470.895828][ T8470] ? __pfx___se_sys_mount+0x10/0x10
[ 470.895857][ T8470] ? __x64_sys_mount+0x20/0xc0
[ 470.895879][ T8470] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 470.895900][ T8470] do_syscall_64+0x15f/0xf80
[ 470.895920][ T8470] ? trace_irq_disable+0x3b/0x140
[ 470.895947][ T8470] ? clear_bhb_loop+0x40/0x90
[ 470.895977][ T8470] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 470.895996][ T8470] RIP: 0033:0x7fcd15ca8e8a
[ 470.896015][ T8470] 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
[ 470.896032][ T8470] RSP: 002b:00007fcd14f1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 470.896053][ T8470] RAX: ffffffffffffffda RBX: 00007fcd14f1dee0 RCX: 00007fcd15ca8e8a
[ 470.896068][ T8470] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fcd14f1dea0
[ 470.896081][ T8470] RBP: 0000000020000000 R08: 00007fcd14f1dee0 R09: 0000000000208c1b
[ 470.896094][ T8470] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 470.896107][ T8470] R13: 00007fcd14f1dea0 R14: 0000000000012752 R15: 0000000020013100
[ 470.896138][ T8470]
[ 470.897689][ T8470] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 470.977827][ T8470] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 471.145552][ T8469] loop1: detected capacity change from 0 to 32768
[ 471.164329][ T8474] loop3: detected capacity change from 0 to 32768
[ 471.202540][ T8469] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 471.202559][ T8469] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 471.259368][ T8474] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 471.259392][ T8474] CPU: 0 UID: 0 PID: 8474 Comm: syz.3.447 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 471.259414][ T8474] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 471.259426][ T8474] Call Trace:
[ 471.259434][ T8474]
[ 471.259441][ T8474] dump_stack_lvl+0xe8/0x150
[ 471.259471][ T8474] sysfs_create_dir_ns+0x271/0x2a0
[ 471.259495][ T8474] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 471.259522][ T8474] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 471.259548][ T8474] ? rt_spin_unlock+0x160/0x200
[ 471.259574][ T8474] kobject_add_internal+0x631/0xd10
[ 471.259624][ T8474] kobject_init_and_add+0x12b/0x1a0
[ 471.259651][ T8474] ? __pfx_kobject_init_and_add+0x10/0x10
[ 471.259683][ T8474] ? __raw_spin_lock_init+0x45/0x100
[ 471.259711][ T8474] ? __init_swait_queue_head+0xa9/0x150
[ 471.259744][ T8474] gfs2_sys_fs_add+0x257/0x480
[ 471.259767][ T8474] ? is_dynamic_key+0x1ac/0x1c0
[ 471.259787][ T8474] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 471.259819][ T8474] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 471.259853][ T8474] gfs2_fill_super+0x141c/0x2220
[ 471.259950][ T8474] ? __pfx_gfs2_fill_super+0x10/0x10
[ 471.259980][ T8474] ? rt_spin_unlock+0x14f/0x200
[ 471.260011][ T8474] ? sb_set_blocksize+0x11b/0x210
[ 471.260032][ T8474] ? setup_bdev_super+0x4c1/0x5b0
[ 471.260063][ T8474] get_tree_bdev_flags+0x431/0x4f0
[ 471.260092][ T8474] ? __pfx_gfs2_fill_super+0x10/0x10
[ 471.260113][ T8474] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 471.260137][ T8474] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 471.260173][ T8474] gfs2_get_tree+0x51/0x1e0
[ 471.260197][ T8474] vfs_get_tree+0x92/0x2a0
[ 471.260223][ T8474] do_new_mount+0x341/0xd30
[ 471.260244][ T8474] ? apparmor_capable+0x126/0x170
[ 471.260271][ T8474] ? __pfx_do_new_mount+0x10/0x10
[ 471.260291][ T8474] ? ns_capable+0x89/0xe0
[ 471.260321][ T8474] ? user_path_at+0xd4/0x160
[ 471.260349][ T8474] ? user_path_at+0xd4/0x160
[ 471.260374][ T8474] __se_sys_mount+0x31d/0x420
[ 471.260401][ T8474] ? __pfx___se_sys_mount+0x10/0x10
[ 471.260429][ T8474] ? __x64_sys_mount+0x20/0xc0
[ 471.260450][ T8474] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 471.260471][ T8474] do_syscall_64+0x15f/0xf80
[ 471.260492][ T8474] ? trace_irq_disable+0x3b/0x140
[ 471.260519][ T8474] ? clear_bhb_loop+0x40/0x90
[ 471.260544][ T8474] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 471.260563][ T8474] RIP: 0033:0x7f6c6c118e8a
[ 471.260584][ T8474] 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
[ 471.260600][ T8474] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 471.260620][ T8474] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 471.260634][ T8474] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 471.260645][ T8474] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 471.260656][ T8474] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 471.260666][ T8474] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 471.260697][ T8474]
[ 471.260821][ T8474] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 471.260839][ T8474] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 471.549881][ T8469] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 471.573631][ T822] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 471.573651][ T822] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 472.109611][ T822] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 535ms
[ 472.109850][ T822] gfs2: fsid=syz:syz.0: jid=0: Done
[ 472.109900][ T8469] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 472.934534][ T8486] loop2: detected capacity change from 0 to 32768
[ 472.971764][ T8486] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 472.971784][ T8486] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 473.005119][ T8476] loop4: detected capacity change from 0 to 32768
[ 473.050984][ T8476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 473.051007][ T8476] CPU: 1 UID: 0 PID: 8476 Comm: syz.4.448 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 473.051030][ T8476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 473.051040][ T8476] Call Trace:
[ 473.051048][ T8476]
[ 473.051055][ T8476] dump_stack_lvl+0xe8/0x150
[ 473.051085][ T8476] sysfs_create_dir_ns+0x271/0x2a0
[ 473.051107][ T8476] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 473.051135][ T8476] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 473.051161][ T8476] ? rt_spin_unlock+0x160/0x200
[ 473.051187][ T8476] kobject_add_internal+0x631/0xd10
[ 473.051220][ T8476] kobject_init_and_add+0x12b/0x1a0
[ 473.051250][ T8476] ? __pfx_kobject_init_and_add+0x10/0x10
[ 473.051276][ T8476] ? __raw_spin_lock_init+0x45/0x100
[ 473.051303][ T8476] ? __init_swait_queue_head+0xa9/0x150
[ 473.051334][ T8476] gfs2_sys_fs_add+0x257/0x480
[ 473.051358][ T8476] ? is_dynamic_key+0x1ac/0x1c0
[ 473.051377][ T8476] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 473.051409][ T8476] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 473.051441][ T8476] gfs2_fill_super+0x141c/0x2220
[ 473.051486][ T8476] ? __pfx_gfs2_fill_super+0x10/0x10
[ 473.051505][ T8476] ? rt_spin_unlock+0x14f/0x200
[ 473.051535][ T8476] ? sb_set_blocksize+0x11b/0x210
[ 473.051557][ T8476] ? setup_bdev_super+0x4c1/0x5b0
[ 473.051587][ T8476] get_tree_bdev_flags+0x431/0x4f0
[ 473.051618][ T8476] ? __pfx_gfs2_fill_super+0x10/0x10
[ 473.051637][ T8476] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 473.051661][ T8476] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 473.051694][ T8476] gfs2_get_tree+0x51/0x1e0
[ 473.051716][ T8476] vfs_get_tree+0x92/0x2a0
[ 473.051744][ T8476] do_new_mount+0x341/0xd30
[ 473.051762][ T8476] ? apparmor_capable+0x126/0x170
[ 473.051786][ T8476] ? __pfx_do_new_mount+0x10/0x10
[ 473.051807][ T8476] ? ns_capable+0x89/0xe0
[ 473.051835][ T8476] ? user_path_at+0xd4/0x160
[ 473.051863][ T8476] ? user_path_at+0xd4/0x160
[ 473.051886][ T8476] __se_sys_mount+0x31d/0x420
[ 473.051910][ T8476] ? __pfx___se_sys_mount+0x10/0x10
[ 473.051937][ T8476] ? __x64_sys_mount+0x20/0xc0
[ 473.051958][ T8476] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.051978][ T8476] do_syscall_64+0x15f/0xf80
[ 473.051999][ T8476] ? trace_irq_disable+0x3b/0x140
[ 473.052026][ T8476] ? clear_bhb_loop+0x40/0x90
[ 473.052050][ T8476] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.052069][ T8476] RIP: 0033:0x7ffa32018e8a
[ 473.052088][ T8476] 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
[ 473.052105][ T8476] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 473.052125][ T8476] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 473.052139][ T8476] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 473.052152][ T8476] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 473.052166][ T8476] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 473.052179][ T8476] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 473.052209][ T8476]
[ 473.054698][ T8486] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 473.055624][ T8476] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 473.055641][ T8476] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 473.070618][ T822] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 473.070639][ T822] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 473.614642][ T8490] loop0: detected capacity change from 0 to 32768
[ 473.648431][ T8490] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 473.648454][ T8490] CPU: 0 UID: 0 PID: 8490 Comm: syz.0.449 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 473.648476][ T8490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 473.648487][ T8490] Call Trace:
[ 473.648495][ T8490]
[ 473.648504][ T8490] dump_stack_lvl+0xe8/0x150
[ 473.648535][ T8490] sysfs_create_dir_ns+0x271/0x2a0
[ 473.648561][ T8490] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 473.648588][ T8490] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 473.648615][ T8490] ? rt_spin_unlock+0x160/0x200
[ 473.648642][ T8490] kobject_add_internal+0x631/0xd10
[ 473.648676][ T8490] kobject_init_and_add+0x12b/0x1a0
[ 473.648715][ T8490] ? __pfx_kobject_init_and_add+0x10/0x10
[ 473.648741][ T8490] ? __raw_spin_lock_init+0x45/0x100
[ 473.648770][ T8490] ? __init_swait_queue_head+0xa9/0x150
[ 473.648800][ T8490] gfs2_sys_fs_add+0x257/0x480
[ 473.648824][ T8490] ? is_dynamic_key+0x1ac/0x1c0
[ 473.648844][ T8490] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 473.648877][ T8490] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 473.648912][ T8490] gfs2_fill_super+0x141c/0x2220
[ 473.648949][ T8490] ? __pfx_gfs2_fill_super+0x10/0x10
[ 473.648968][ T8490] ? rt_spin_unlock+0x14f/0x200
[ 473.648996][ T8490] ? sb_set_blocksize+0x11b/0x210
[ 473.649018][ T8490] ? setup_bdev_super+0x4c1/0x5b0
[ 473.649048][ T8490] get_tree_bdev_flags+0x431/0x4f0
[ 473.649076][ T8490] ? __pfx_gfs2_fill_super+0x10/0x10
[ 473.649097][ T8490] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 473.649122][ T8490] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 473.649159][ T8490] gfs2_get_tree+0x51/0x1e0
[ 473.649182][ T8490] vfs_get_tree+0x92/0x2a0
[ 473.649210][ T8490] do_new_mount+0x341/0xd30
[ 473.649236][ T8490] ? apparmor_capable+0x126/0x170
[ 473.649263][ T8490] ? __pfx_do_new_mount+0x10/0x10
[ 473.649285][ T8490] ? ns_capable+0x89/0xe0
[ 473.649312][ T8490] ? user_path_at+0xd4/0x160
[ 473.649340][ T8490] ? user_path_at+0xd4/0x160
[ 473.649367][ T8490] __se_sys_mount+0x31d/0x420
[ 473.649396][ T8490] ? __pfx___se_sys_mount+0x10/0x10
[ 473.649424][ T8490] ? __x64_sys_mount+0x20/0xc0
[ 473.649444][ T8490] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.649466][ T8490] do_syscall_64+0x15f/0xf80
[ 473.649486][ T8490] ? trace_irq_disable+0x3b/0x140
[ 473.649513][ T8490] ? clear_bhb_loop+0x40/0x90
[ 473.649536][ T8490] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.649555][ T8490] RIP: 0033:0x7fc5b8848e8a
[ 473.649575][ T8490] 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
[ 473.649591][ T8490] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 473.649612][ T8490] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 473.649627][ T8490] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 473.649640][ T8490] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 473.649653][ T8490] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 473.649665][ T8490] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 473.649701][ T8490]
[ 473.649729][ T8490] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 473.649744][ T8490] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 473.704445][ T822] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 633ms
[ 473.704702][ T822] gfs2: fsid=syz:syz.0: jid=0: Done
[ 473.704773][ T8486] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 473.892765][ T8486] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 473.892786][ T8486] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 473.892814][ T8486] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 473.892841][ T8486] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8486 [syz.2.450] iterate_dir+0x3a5/0x580
[ 473.892873][ T8486] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 473.892900][ T8486] CPU: 0 UID: 0 PID: 8486 Comm: syz.2.450 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 473.892921][ T8486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 473.892932][ T8486] Call Trace:
[ 473.892940][ T8486]
[ 473.892948][ T8486] dump_stack_lvl+0xe8/0x150
[ 473.892974][ T8486] gfs2_withdraw+0xc3/0x1b0
[ 473.893002][ T8486] gfs2_dirent_scan+0x545/0x690
[ 473.893024][ T8486] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 473.893048][ T8486] gfs2_dir_read+0x78e/0x1760
[ 473.893072][ T8486] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 473.893099][ T8486] ? __pfx_inode_dio_wait+0x10/0x10
[ 473.893130][ T8486] ? __pfx_gfs2_dir_read+0x10/0x10
[ 473.893162][ T8486] ? gfs2_glock_wait+0x212/0x2a0
[ 473.893185][ T8486] gfs2_readdir+0x16c/0x1e0
[ 473.893205][ T8486] ? __pfx_gfs2_readdir+0x10/0x10
[ 473.893221][ T8486] ? down_read_killable+0x14c/0x220
[ 473.893245][ T8486] ? iterate_dir+0x3a5/0x580
[ 473.893263][ T8486] ? apparmor_file_permission+0x1f4/0x300
[ 473.893294][ T8486] iterate_dir+0x3a5/0x580
[ 473.893316][ T8486] __se_sys_getdents+0xf1/0x270
[ 473.893337][ T8486] ? __pfx___se_sys_getdents+0x10/0x10
[ 473.893355][ T8486] ? __pfx_filldir+0x10/0x10
[ 473.893373][ T8486] ? rcu_is_watching+0x15/0xb0
[ 473.893403][ T8486] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.893423][ T8486] do_syscall_64+0x15f/0xf80
[ 473.893441][ T8486] ? trace_irq_disable+0x3b/0x140
[ 473.893467][ T8486] ? clear_bhb_loop+0x40/0x90
[ 473.893489][ T8486] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 473.893507][ T8486] RIP: 0033:0x7fcd15ca7be9
[ 473.893524][ T8486] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 473.893544][ T8486] RSP: 002b:00007fcd14f1e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 473.893563][ T8486] RAX: ffffffffffffffda RBX: 00007fcd15e75f80 RCX: 00007fcd15ca7be9
[ 473.893577][ T8486] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 473.893588][ T8486] RBP: 00007fcd15d2b2bf R08: 0000000000000000 R09: 0000000000000000
[ 473.893600][ T8486] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 473.893618][ T8486] R13: 0000000000000000 R14: 00007fcd15e75f80 R15: 00007ffe1c5ecd88
[ 473.893646][ T8486]
[ 473.901490][ T8486] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 473.903831][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 475.215828][ T8496] loop1: detected capacity change from 0 to 32768
[ 475.256615][ T8496] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 475.256635][ T8496] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 475.335422][ T8496] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 475.368560][ T37] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 475.368581][ T37] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 475.500815][ T37] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 132ms
[ 475.502910][ T37] gfs2: fsid=syz:syz.0: jid=0: Done
[ 475.503323][ T8496] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 475.560154][ T8496] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 475.560176][ T8496] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 475.560205][ T8496] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 475.560234][ T8496] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8496 [syz.1.452] iterate_dir+0x3a5/0x580
[ 475.560266][ T8496] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 475.560295][ T8496] CPU: 0 UID: 0 PID: 8496 Comm: syz.1.452 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 475.560317][ T8496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 475.560328][ T8496] Call Trace:
[ 475.560336][ T8496]
[ 475.560344][ T8496] dump_stack_lvl+0xe8/0x150
[ 475.560371][ T8496] gfs2_withdraw+0xc3/0x1b0
[ 475.560395][ T8496] gfs2_dirent_scan+0x545/0x690
[ 475.560419][ T8496] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 475.560443][ T8496] gfs2_dir_read+0x78e/0x1760
[ 475.560469][ T8496] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 475.560498][ T8496] ? __pfx_inode_dio_wait+0x10/0x10
[ 475.560530][ T8496] ? __pfx_gfs2_dir_read+0x10/0x10
[ 475.560571][ T8496] ? gfs2_glock_wait+0x212/0x2a0
[ 475.560595][ T8496] gfs2_readdir+0x16c/0x1e0
[ 475.560617][ T8496] ? __pfx_gfs2_readdir+0x10/0x10
[ 475.560633][ T8496] ? down_read_killable+0x14c/0x220
[ 475.560659][ T8496] ? iterate_dir+0x3a5/0x580
[ 475.560678][ T8496] ? apparmor_file_permission+0x1f4/0x300
[ 475.560709][ T8496] iterate_dir+0x3a5/0x580
[ 475.560734][ T8496] __se_sys_getdents+0xf1/0x270
[ 475.560756][ T8496] ? __pfx___se_sys_getdents+0x10/0x10
[ 475.560778][ T8496] ? __pfx_filldir+0x10/0x10
[ 475.560797][ T8496] ? rcu_is_watching+0x15/0xb0
[ 475.560830][ T8496] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 475.560851][ T8496] do_syscall_64+0x15f/0xf80
[ 475.560872][ T8496] ? trace_irq_disable+0x3b/0x140
[ 475.560899][ T8496] ? clear_bhb_loop+0x40/0x90
[ 475.560924][ T8496] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 475.560941][ T8496] RIP: 0033:0x7f29bbb27be9
[ 475.560960][ T8496] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 475.560976][ T8496] RSP: 002b:00007f29bad9e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 475.560996][ T8496] RAX: ffffffffffffffda RBX: 00007f29bbcf5f80 RCX: 00007f29bbb27be9
[ 475.561010][ T8496] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 475.561022][ T8496] RBP: 00007f29bbbab2bf R08: 0000000000000000 R09: 0000000000000000
[ 475.561034][ T8496] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 475.561046][ T8496] R13: 0000000000000000 R14: 00007f29bbcf5f80 R15: 00007fff9ed85498
[ 475.561076][ T8496]
[ 475.564179][ T8496] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 475.564479][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 475.866294][ T8502] loop0: detected capacity change from 0 to 32768
[ 475.918499][ T8502] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 475.918519][ T8502] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 476.017637][ T8498] loop4: detected capacity change from 0 to 32768
[ 476.056723][ T8502] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 476.085892][ T8498] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 476.085917][ T8498] CPU: 1 UID: 0 PID: 8498 Comm: syz.4.453 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 476.085939][ T8498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 476.085950][ T8498] Call Trace:
[ 476.085958][ T8498]
[ 476.085967][ T8498] dump_stack_lvl+0xe8/0x150
[ 476.085998][ T8498] sysfs_create_dir_ns+0x271/0x2a0
[ 476.086023][ T8498] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 476.086049][ T8498] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 476.086089][ T8498] ? rt_spin_unlock+0x160/0x200
[ 476.086115][ T8498] kobject_add_internal+0x631/0xd10
[ 476.086146][ T8498] kobject_init_and_add+0x12b/0x1a0
[ 476.086174][ T8498] ? __pfx_kobject_init_and_add+0x10/0x10
[ 476.086199][ T8498] ? __raw_spin_lock_init+0x45/0x100
[ 476.086226][ T8498] ? __init_swait_queue_head+0xa9/0x150
[ 476.086254][ T8498] gfs2_sys_fs_add+0x257/0x480
[ 476.086277][ T8498] ? is_dynamic_key+0x1ac/0x1c0
[ 476.086296][ T8498] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 476.086329][ T8498] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 476.086363][ T8498] gfs2_fill_super+0x141c/0x2220
[ 476.086399][ T8498] ? __pfx_gfs2_fill_super+0x10/0x10
[ 476.086417][ T8498] ? rt_spin_unlock+0x14f/0x200
[ 476.086453][ T8498] ? sb_set_blocksize+0x11b/0x210
[ 476.086475][ T8498] ? setup_bdev_super+0x4c1/0x5b0
[ 476.086506][ T8498] get_tree_bdev_flags+0x431/0x4f0
[ 476.086533][ T8498] ? __pfx_gfs2_fill_super+0x10/0x10
[ 476.086560][ T8498] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 476.086583][ T8498] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 476.086619][ T8498] gfs2_get_tree+0x51/0x1e0
[ 476.086640][ T8498] vfs_get_tree+0x92/0x2a0
[ 476.086665][ T8498] do_new_mount+0x341/0xd30
[ 476.086685][ T8498] ? apparmor_capable+0x126/0x170
[ 476.086708][ T8498] ? __pfx_do_new_mount+0x10/0x10
[ 476.086727][ T8498] ? ns_capable+0x89/0xe0
[ 476.086753][ T8498] ? user_path_at+0xd4/0x160
[ 476.086779][ T8498] ? user_path_at+0xd4/0x160
[ 476.086802][ T8498] __se_sys_mount+0x31d/0x420
[ 476.086832][ T8498] ? __pfx___se_sys_mount+0x10/0x10
[ 476.086859][ T8498] ? __x64_sys_mount+0x20/0xc0
[ 476.086881][ T8498] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 476.086901][ T8498] do_syscall_64+0x15f/0xf80
[ 476.086922][ T8498] ? trace_irq_disable+0x3b/0x140
[ 476.086949][ T8498] ? clear_bhb_loop+0x40/0x90
[ 476.086973][ T8498] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 476.086991][ T8498] RIP: 0033:0x7ffa32018e8a
[ 476.087011][ T8498] 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
[ 476.087026][ T8498] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 476.087047][ T8498] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
2026/05/06 19:25:58 executed programs: 453
[ 476.087061][ T8498] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 476.087074][ T8498] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 476.087087][ T8498] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 476.087099][ T8498] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 476.087130][ T8498]
[ 476.123342][ T5342] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 476.123362][ T5342] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 476.130455][ T8498] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 476.130477][ T8498] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 476.744698][ T5342] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 621ms
[ 476.744942][ T5342] gfs2: fsid=syz:syz.0: jid=0: Done
[ 476.745045][ T8502] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 476.770205][ T8502] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 476.770226][ T8502] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 476.770256][ T8502] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 476.770285][ T8502] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8502 [syz.0.454] iterate_dir+0x3a5/0x580
[ 476.770319][ T8502] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 476.770357][ T8502] CPU: 0 UID: 0 PID: 8502 Comm: syz.0.454 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 476.770377][ T8502] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 476.770389][ T8502] Call Trace:
[ 476.770396][ T8502]
[ 476.770404][ T8502] dump_stack_lvl+0xe8/0x150
[ 476.770431][ T8502] gfs2_withdraw+0xc3/0x1b0
[ 476.770453][ T8502] gfs2_dirent_scan+0x545/0x690
[ 476.770475][ T8502] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 476.770497][ T8502] gfs2_dir_read+0x78e/0x1760
[ 476.770523][ T8502] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 476.770551][ T8502] ? __pfx_inode_dio_wait+0x10/0x10
[ 476.770583][ T8502] ? __pfx_gfs2_dir_read+0x10/0x10
[ 476.770616][ T8502] ? gfs2_glock_wait+0x212/0x2a0
[ 476.770640][ T8502] gfs2_readdir+0x16c/0x1e0
[ 476.770662][ T8502] ? __pfx_gfs2_readdir+0x10/0x10
[ 476.770682][ T8502] ? down_read_killable+0x14c/0x220
[ 476.770705][ T8502] ? iterate_dir+0x3a5/0x580
[ 476.770720][ T8502] ? apparmor_file_permission+0x1f4/0x300
[ 476.770749][ T8502] iterate_dir+0x3a5/0x580
[ 476.770770][ T8502] __se_sys_getdents+0xf1/0x270
[ 476.770790][ T8502] ? __pfx___se_sys_getdents+0x10/0x10
[ 476.770807][ T8502] ? __pfx_filldir+0x10/0x10
[ 476.770825][ T8502] ? rcu_is_watching+0x15/0xb0
[ 476.770856][ T8502] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 476.770877][ T8502] do_syscall_64+0x15f/0xf80
[ 476.770894][ T8502] ? trace_irq_disable+0x3b/0x140
[ 476.770919][ T8502] ? clear_bhb_loop+0x40/0x90
[ 476.770939][ T8502] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 476.770953][ T8502] RIP: 0033:0x7fc5b8847be9
[ 476.770966][ T8502] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 476.770980][ T8502] RSP: 002b:00007fc5b7abe028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 476.770996][ T8502] RAX: ffffffffffffffda RBX: 00007fc5b8a15f80 RCX: 00007fc5b8847be9
[ 476.771007][ T8502] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 476.771016][ T8502] RBP: 00007fc5b88cb2bf R08: 0000000000000000 R09: 0000000000000000
[ 476.771025][ T8502] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 476.771034][ T8502] R13: 0000000000000000 R14: 00007fc5b8a15f80 R15: 00007ffd5daff208
[ 476.771056][ T8502]
[ 476.774734][ T8502] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 476.781834][ T5342] gfs2: fsid=syz:syz.0: file system withdrawn
[ 477.610138][ T8504] loop2: detected capacity change from 0 to 32768
[ 477.638918][ T8504] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 477.638938][ T8504] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 477.693054][ T8504] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 477.725889][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 477.725911][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 477.737947][ T8506] loop3: detected capacity change from 0 to 32768
[ 477.771343][ T8506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 477.771366][ T8506] CPU: 1 UID: 0 PID: 8506 Comm: syz.3.456 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 477.771388][ T8506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 477.771400][ T8506] Call Trace:
[ 477.771408][ T8506]
[ 477.771416][ T8506] dump_stack_lvl+0xe8/0x150
[ 477.771447][ T8506] sysfs_create_dir_ns+0x271/0x2a0
[ 477.771471][ T8506] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 477.771500][ T8506] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 477.771525][ T8506] ? rt_spin_unlock+0x160/0x200
[ 477.771553][ T8506] kobject_add_internal+0x631/0xd10
[ 477.771584][ T8506] kobject_init_and_add+0x12b/0x1a0
[ 477.771614][ T8506] ? __pfx_kobject_init_and_add+0x10/0x10
[ 477.771639][ T8506] ? __raw_spin_lock_init+0x45/0x100
[ 477.771668][ T8506] ? __init_swait_queue_head+0xa9/0x150
[ 477.771698][ T8506] gfs2_sys_fs_add+0x257/0x480
[ 477.771723][ T8506] ? is_dynamic_key+0x1ac/0x1c0
[ 477.771742][ T8506] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 477.771775][ T8506] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 477.771811][ T8506] gfs2_fill_super+0x141c/0x2220
[ 477.771845][ T8506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 477.771862][ T8506] ? rt_spin_unlock+0x14f/0x200
[ 477.771888][ T8506] ? sb_set_blocksize+0x11b/0x210
[ 477.771909][ T8506] ? setup_bdev_super+0x4c1/0x5b0
[ 477.771937][ T8506] get_tree_bdev_flags+0x431/0x4f0
[ 477.771963][ T8506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 477.771999][ T8506] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 477.772023][ T8506] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 477.772063][ T8506] gfs2_get_tree+0x51/0x1e0
[ 477.772086][ T8506] vfs_get_tree+0x92/0x2a0
[ 477.772113][ T8506] do_new_mount+0x341/0xd30
[ 477.772134][ T8506] ? apparmor_capable+0x126/0x170
[ 477.772161][ T8506] ? __pfx_do_new_mount+0x10/0x10
[ 477.772183][ T8506] ? ns_capable+0x89/0xe0
[ 477.772212][ T8506] ? user_path_at+0xd4/0x160
[ 477.772239][ T8506] ? user_path_at+0xd4/0x160
[ 477.772266][ T8506] __se_sys_mount+0x31d/0x420
[ 477.772294][ T8506] ? __pfx___se_sys_mount+0x10/0x10
[ 477.772321][ T8506] ? __x64_sys_mount+0x20/0xc0
[ 477.772342][ T8506] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 477.772362][ T8506] do_syscall_64+0x15f/0xf80
[ 477.772383][ T8506] ? trace_irq_disable+0x3b/0x140
[ 477.772405][ T8506] ? clear_bhb_loop+0x40/0x90
[ 477.772428][ T8506] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 477.772447][ T8506] RIP: 0033:0x7f6c6c118e8a
[ 477.772467][ T8506] 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
[ 477.772483][ T8506] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 477.772504][ T8506] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 477.772518][ T8506] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 477.772531][ T8506] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 477.772544][ T8506] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 477.772557][ T8506] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 477.772586][ T8506]
[ 477.829544][ T8506] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 477.829569][ T8506] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 478.220825][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 494ms
[ 478.221081][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 478.224015][ T8504] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 478.576335][ T8513] loop1: detected capacity change from 0 to 32768
[ 478.634421][ T8513] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 478.634441][ T8513] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 478.753626][ T8513] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 478.779132][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 478.779154][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 478.877389][ T8516] loop4: detected capacity change from 0 to 32768
[ 478.912653][ T8516] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 478.912677][ T8516] CPU: 1 UID: 0 PID: 8516 Comm: syz.4.458 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 478.912697][ T8516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 478.912707][ T8516] Call Trace:
[ 478.912714][ T8516]
[ 478.912722][ T8516] dump_stack_lvl+0xe8/0x150
[ 478.912752][ T8516] sysfs_create_dir_ns+0x271/0x2a0
[ 478.912775][ T8516] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 478.912801][ T8516] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 478.912826][ T8516] ? rt_spin_unlock+0x160/0x200
[ 478.912851][ T8516] kobject_add_internal+0x631/0xd10
[ 478.912883][ T8516] kobject_init_and_add+0x12b/0x1a0
[ 478.912912][ T8516] ? __pfx_kobject_init_and_add+0x10/0x10
[ 478.912936][ T8516] ? __raw_spin_lock_init+0x45/0x100
[ 478.912963][ T8516] ? __init_swait_queue_head+0xa9/0x150
[ 478.912990][ T8516] gfs2_sys_fs_add+0x257/0x480
[ 478.913015][ T8516] ? is_dynamic_key+0x1ac/0x1c0
[ 478.913035][ T8516] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 478.913067][ T8516] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 478.913099][ T8516] gfs2_fill_super+0x141c/0x2220
[ 478.913134][ T8516] ? __pfx_gfs2_fill_super+0x10/0x10
[ 478.913152][ T8516] ? rt_spin_unlock+0x14f/0x200
[ 478.913181][ T8516] ? sb_set_blocksize+0x11b/0x210
[ 478.913212][ T8516] ? setup_bdev_super+0x4c1/0x5b0
[ 478.913242][ T8516] get_tree_bdev_flags+0x431/0x4f0
[ 478.913269][ T8516] ? __pfx_gfs2_fill_super+0x10/0x10
[ 478.913289][ T8516] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 478.913312][ T8516] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 478.913348][ T8516] gfs2_get_tree+0x51/0x1e0
[ 478.913371][ T8516] vfs_get_tree+0x92/0x2a0
[ 478.913399][ T8516] do_new_mount+0x341/0xd30
[ 478.913419][ T8516] ? apparmor_capable+0x126/0x170
[ 478.913447][ T8516] ? __pfx_do_new_mount+0x10/0x10
[ 478.913469][ T8516] ? ns_capable+0x89/0xe0
[ 478.913498][ T8516] ? user_path_at+0xd4/0x160
[ 478.913526][ T8516] ? user_path_at+0xd4/0x160
[ 478.913552][ T8516] __se_sys_mount+0x31d/0x420
[ 478.913579][ T8516] ? __pfx___se_sys_mount+0x10/0x10
[ 478.913607][ T8516] ? __x64_sys_mount+0x20/0xc0
[ 478.913628][ T8516] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 478.913648][ T8516] do_syscall_64+0x15f/0xf80
[ 478.913668][ T8516] ? trace_irq_disable+0x3b/0x140
[ 478.913695][ T8516] ? clear_bhb_loop+0x40/0x90
[ 478.913718][ T8516] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 478.913737][ T8516] RIP: 0033:0x7ffa32018e8a
[ 478.913756][ T8516] 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
[ 478.913772][ T8516] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 478.913792][ T8516] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 478.913807][ T8516] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 478.913821][ T8516] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 478.913833][ T8516] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 478.913846][ T8516] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 478.913876][ T8516]
[ 478.913920][ T8516] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 478.913936][ T8516] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 479.502133][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 722ms
[ 479.504279][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 479.504388][ T8513] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 480.121501][ T8520] loop0: detected capacity change from 0 to 32768
[ 480.165978][ T8520] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 480.165998][ T8520] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 480.237248][ T8532] loop4: detected capacity change from 0 to 32768
[ 480.242618][ T8532] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 480.242640][ T8532] CPU: 0 UID: 0 PID: 8532 Comm: syz.4.462 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 480.242661][ T8532] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 480.242673][ T8532] Call Trace:
[ 480.242680][ T8532]
[ 480.242688][ T8532] dump_stack_lvl+0xe8/0x150
[ 480.242718][ T8532] sysfs_create_dir_ns+0x271/0x2a0
[ 480.242742][ T8532] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 480.242770][ T8532] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 480.242796][ T8532] ? rt_spin_unlock+0x160/0x200
[ 480.242821][ T8532] kobject_add_internal+0x631/0xd10
[ 480.242854][ T8532] kobject_init_and_add+0x12b/0x1a0
[ 480.242882][ T8532] ? __pfx_kobject_init_and_add+0x10/0x10
[ 480.242907][ T8532] ? __raw_spin_lock_init+0x45/0x100
[ 480.242934][ T8532] ? __init_swait_queue_head+0xa9/0x150
[ 480.242964][ T8532] gfs2_sys_fs_add+0x257/0x480
[ 480.242986][ T8532] ? is_dynamic_key+0x1ac/0x1c0
[ 480.243006][ T8532] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 480.243038][ T8532] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 480.243127][ T8532] gfs2_fill_super+0x141c/0x2220
[ 480.243161][ T8532] ? __pfx_gfs2_fill_super+0x10/0x10
[ 480.243178][ T8532] ? rt_spin_unlock+0x14f/0x200
[ 480.243205][ T8532] ? sb_set_blocksize+0x11b/0x210
[ 480.243225][ T8532] ? setup_bdev_super+0x4c1/0x5b0
[ 480.243254][ T8532] get_tree_bdev_flags+0x431/0x4f0
[ 480.243281][ T8532] ? __pfx_gfs2_fill_super+0x10/0x10
[ 480.243300][ T8532] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 480.243324][ T8532] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 480.243359][ T8532] gfs2_get_tree+0x51/0x1e0
[ 480.243382][ T8532] vfs_get_tree+0x92/0x2a0
[ 480.243409][ T8532] do_new_mount+0x341/0xd30
[ 480.243428][ T8532] ? apparmor_capable+0x126/0x170
[ 480.243454][ T8532] ? __pfx_do_new_mount+0x10/0x10
[ 480.243476][ T8532] ? ns_capable+0x89/0xe0
[ 480.243507][ T8532] ? user_path_at+0xd4/0x160
[ 480.243534][ T8532] ? user_path_at+0xd4/0x160
[ 480.243559][ T8532] __se_sys_mount+0x31d/0x420
[ 480.243587][ T8532] ? __pfx___se_sys_mount+0x10/0x10
[ 480.243614][ T8532] ? __x64_sys_mount+0x20/0xc0
[ 480.243634][ T8532] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 480.243654][ T8532] do_syscall_64+0x15f/0xf80
[ 480.243673][ T8532] ? trace_irq_disable+0x3b/0x140
[ 480.243699][ T8532] ? clear_bhb_loop+0x40/0x90
[ 480.243721][ T8532] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 480.243739][ T8532] RIP: 0033:0x7ffa32018e8a
[ 480.243757][ T8532] 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
[ 480.243773][ T8532] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 480.243794][ T8532] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 480.243807][ T8532] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 480.243820][ T8532] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 480.243832][ T8532] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 480.243844][ T8532] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 480.243872][ T8532]
[ 480.245402][ T8532] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 480.245419][ T8532] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 480.444540][ T8520] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 480.474306][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 480.474324][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 480.939861][ T8524] loop3: detected capacity change from 0 to 32768
[ 480.954753][ T8524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 480.954775][ T8524] CPU: 1 UID: 0 PID: 8524 Comm: syz.3.460 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 480.954796][ T8524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 480.954808][ T8524] Call Trace:
[ 480.954816][ T8524]
[ 480.954824][ T8524] dump_stack_lvl+0xe8/0x150
[ 480.954854][ T8524] sysfs_create_dir_ns+0x271/0x2a0
[ 480.954879][ T8524] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 480.954913][ T8524] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 480.954939][ T8524] ? rt_spin_unlock+0x160/0x200
[ 480.954972][ T8524] kobject_add_internal+0x631/0xd10
[ 480.955006][ T8524] kobject_init_and_add+0x12b/0x1a0
[ 480.955036][ T8524] ? __pfx_kobject_init_and_add+0x10/0x10
[ 480.955062][ T8524] ? __raw_spin_lock_init+0x45/0x100
[ 480.955091][ T8524] ? __init_swait_queue_head+0xa9/0x150
[ 480.955123][ T8524] gfs2_sys_fs_add+0x257/0x480
[ 480.955147][ T8524] ? is_dynamic_key+0x1ac/0x1c0
[ 480.955167][ T8524] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 480.955200][ T8524] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 480.955234][ T8524] gfs2_fill_super+0x141c/0x2220
[ 480.955269][ T8524] ? __pfx_gfs2_fill_super+0x10/0x10
[ 480.955287][ T8524] ? rt_spin_unlock+0x14f/0x200
[ 480.955316][ T8524] ? sb_set_blocksize+0x11b/0x210
[ 480.955337][ T8524] ? setup_bdev_super+0x4c1/0x5b0
[ 480.955368][ T8524] get_tree_bdev_flags+0x431/0x4f0
[ 480.955400][ T8524] ? __pfx_gfs2_fill_super+0x10/0x10
[ 480.955419][ T8524] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 480.955443][ T8524] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 480.955477][ T8524] gfs2_get_tree+0x51/0x1e0
[ 480.955500][ T8524] vfs_get_tree+0x92/0x2a0
[ 480.955529][ T8524] do_new_mount+0x341/0xd30
[ 480.955550][ T8524] ? apparmor_capable+0x126/0x170
[ 480.955578][ T8524] ? __pfx_do_new_mount+0x10/0x10
[ 480.955600][ T8524] ? ns_capable+0x89/0xe0
[ 480.955630][ T8524] ? user_path_at+0xd4/0x160
[ 480.955658][ T8524] ? user_path_at+0xd4/0x160
[ 480.955684][ T8524] __se_sys_mount+0x31d/0x420
[ 480.955712][ T8524] ? __pfx___se_sys_mount+0x10/0x10
[ 480.955740][ T8524] ? __x64_sys_mount+0x20/0xc0
[ 480.955761][ T8524] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 480.955782][ T8524] do_syscall_64+0x15f/0xf80
[ 480.955802][ T8524] ? trace_irq_disable+0x3b/0x140
[ 480.955828][ T8524] ? clear_bhb_loop+0x40/0x90
[ 480.955851][ T8524] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 480.955870][ T8524] RIP: 0033:0x7f6c6c118e8a
[ 480.955890][ T8524] 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
[ 480.955907][ T8524] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 480.955929][ T8524] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 480.955943][ T8524] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 480.955956][ T8524] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 480.955977][ T8524] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 480.955990][ T8524] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 480.956020][ T8524]
[ 480.964748][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 490ms
[ 480.964968][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 480.966995][ T8520] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 481.044622][ T8524] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 481.044643][ T8524] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 481.403823][ T8530] loop2: detected capacity change from 0 to 32768
[ 481.510314][ T8530] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 481.510337][ T8530] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 481.686119][ T8530] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 481.718499][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 481.718519][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 481.991489][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 272ms
[ 482.008269][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 482.009277][ T8530] gfs2: fsid=syz:syz.0: first mount done, others may mount
2026/05/06 19:26:03 executed programs: 462
[ 482.226886][ T8540] loop1: detected capacity change from 0 to 32768
[ 482.300068][ T8540] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 482.300089][ T8540] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 482.349919][ T8540] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 482.416253][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 482.416274][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 482.777345][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 361ms
[ 482.777594][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 482.778534][ T8540] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 482.845777][ T8540] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 482.845798][ T8540] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 482.845839][ T8540] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 482.845868][ T8540] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8540 [syz.1.463] iterate_dir+0x3a5/0x580
[ 482.845917][ T8540] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 482.845946][ T8540] CPU: 1 UID: 0 PID: 8540 Comm: syz.1.463 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 482.845967][ T8540] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 482.845979][ T8540] Call Trace:
[ 482.845987][ T8540]
[ 482.845996][ T8540] dump_stack_lvl+0xe8/0x150
[ 482.846024][ T8540] gfs2_withdraw+0xc3/0x1b0
[ 482.846047][ T8540] gfs2_dirent_scan+0x545/0x690
[ 482.846071][ T8540] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 482.846096][ T8540] gfs2_dir_read+0x78e/0x1760
[ 482.846122][ T8540] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 482.846150][ T8540] ? __pfx_inode_dio_wait+0x10/0x10
[ 482.846184][ T8540] ? __pfx_gfs2_dir_read+0x10/0x10
[ 482.846217][ T8540] ? gfs2_glock_wait+0x212/0x2a0
[ 482.846242][ T8540] gfs2_readdir+0x16c/0x1e0
[ 482.846264][ T8540] ? __pfx_gfs2_readdir+0x10/0x10
[ 482.846281][ T8540] ? down_read_killable+0x14c/0x220
[ 482.846306][ T8540] ? iterate_dir+0x3a5/0x580
[ 482.846325][ T8540] ? apparmor_file_permission+0x1f4/0x300
[ 482.846356][ T8540] iterate_dir+0x3a5/0x580
[ 482.846384][ T8540] __se_sys_getdents+0xf1/0x270
[ 482.846406][ T8540] ? __pfx___se_sys_getdents+0x10/0x10
[ 482.846425][ T8540] ? __pfx_filldir+0x10/0x10
[ 482.846445][ T8540] ? rcu_is_watching+0x15/0xb0
[ 482.846477][ T8540] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 482.846499][ T8540] do_syscall_64+0x15f/0xf80
[ 482.846518][ T8540] ? trace_irq_disable+0x3b/0x140
[ 482.846546][ T8540] ? clear_bhb_loop+0x40/0x90
[ 482.846569][ T8540] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 482.846588][ T8540] RIP: 0033:0x7f29bbb27be9
[ 482.846606][ T8540] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 482.846623][ T8540] RSP: 002b:00007f29bad9e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 482.846644][ T8540] RAX: ffffffffffffffda RBX: 00007f29bbcf5f80 RCX: 00007f29bbb27be9
[ 482.846658][ T8540] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 482.846670][ T8540] RBP: 00007f29bbbab2bf R08: 0000000000000000 R09: 0000000000000000
[ 482.846682][ T8540] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 482.846694][ T8540] R13: 0000000000000000 R14: 00007f29bbcf5f80 R15: 00007fff9ed85498
[ 482.846724][ T8540]
[ 482.846813][ T8540] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 482.846875][ T37] gfs2: fsid=syz:syz.0: file system withdrawn
[ 483.161985][ T8539] loop4: detected capacity change from 0 to 32768
[ 483.170344][ T8539] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 483.170368][ T8539] CPU: 0 UID: 0 PID: 8539 Comm: syz.4.464 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 483.170391][ T8539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 483.170402][ T8539] Call Trace:
[ 483.170410][ T8539]
[ 483.170418][ T8539] dump_stack_lvl+0xe8/0x150
[ 483.170447][ T8539] sysfs_create_dir_ns+0x271/0x2a0
[ 483.170471][ T8539] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 483.170498][ T8539] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 483.170524][ T8539] ? rt_spin_unlock+0x160/0x200
[ 483.170550][ T8539] kobject_add_internal+0x631/0xd10
[ 483.170660][ T8539] kobject_init_and_add+0x12b/0x1a0
[ 483.170693][ T8539] ? __pfx_kobject_init_and_add+0x10/0x10
[ 483.170719][ T8539] ? __raw_spin_lock_init+0x45/0x100
[ 483.170748][ T8539] ? __init_swait_queue_head+0xa9/0x150
[ 483.170777][ T8539] gfs2_sys_fs_add+0x257/0x480
[ 483.170799][ T8539] ? is_dynamic_key+0x1ac/0x1c0
[ 483.170817][ T8539] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 483.170847][ T8539] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 483.170882][ T8539] gfs2_fill_super+0x141c/0x2220
[ 483.170921][ T8539] ? __pfx_gfs2_fill_super+0x10/0x10
[ 483.170941][ T8539] ? rt_spin_unlock+0x14f/0x200
[ 483.170969][ T8539] ? sb_set_blocksize+0x11b/0x210
[ 483.170989][ T8539] ? setup_bdev_super+0x4c1/0x5b0
[ 483.171020][ T8539] get_tree_bdev_flags+0x431/0x4f0
[ 483.171047][ T8539] ? __pfx_gfs2_fill_super+0x10/0x10
[ 483.171068][ T8539] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 483.171094][ T8539] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 483.171132][ T8539] gfs2_get_tree+0x51/0x1e0
[ 483.171155][ T8539] vfs_get_tree+0x92/0x2a0
[ 483.171184][ T8539] do_new_mount+0x341/0xd30
[ 483.171205][ T8539] ? apparmor_capable+0x126/0x170
[ 483.171233][ T8539] ? __pfx_do_new_mount+0x10/0x10
[ 483.171256][ T8539] ? ns_capable+0x89/0xe0
[ 483.171285][ T8539] ? user_path_at+0xd4/0x160
[ 483.171314][ T8539] ? user_path_at+0xd4/0x160
[ 483.171341][ T8539] __se_sys_mount+0x31d/0x420
[ 483.171369][ T8539] ? __pfx___se_sys_mount+0x10/0x10
[ 483.171398][ T8539] ? __x64_sys_mount+0x20/0xc0
[ 483.171420][ T8539] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 483.171440][ T8539] do_syscall_64+0x15f/0xf80
[ 483.171461][ T8539] ? trace_irq_disable+0x3b/0x140
[ 483.171503][ T8539] ? clear_bhb_loop+0x40/0x90
[ 483.171692][ T8539] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 483.171715][ T8539] RIP: 0033:0x7ffa32018e8a
[ 483.171736][ T8539] 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
[ 483.171753][ T8539] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 483.171773][ T8539] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 483.171787][ T8539] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 483.171800][ T8539] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 483.171813][ T8539] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 483.171825][ T8539] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 483.171855][ T8539]
[ 483.195882][ T8539] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 483.195904][ T8539] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 483.362478][ T8544] loop3: detected capacity change from 0 to 32768
[ 483.407786][ T8544] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 483.407839][ T8544] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 483.612893][ T8544] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 483.690547][ T5736] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 483.690566][ T5736] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 484.111915][ T5736] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 421ms
[ 484.112169][ T5736] gfs2: fsid=syz:syz.0: jid=0: Done
[ 484.112218][ T8544] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 484.141232][ T8544] gfs2: fsid=syz:syz.0: gfs2_check_dirent: gfs2_dirent too small (not first in block)
[ 484.141252][ T8544] gfs2: fsid=syz:syz.0: fatal: filesystem consistency error - inode = 12 2341, function = gfs2_dirent_scan, file = fs/gfs2/dir.c, line = 590
[ 484.141281][ T8544] gfs2: fsid=syz:syz.0: G: s:SH n:2/925 f:aqo t:SH d:EX/0 a:0 v:0 r:2 m:20 p:1
[ 484.141310][ T8544] gfs2: fsid=syz:syz.0: H: s:SH f:H e:0 p:8544 [syz.3.466] iterate_dir+0x3a5/0x580
[ 484.141343][ T8544] gfs2: fsid=syz:syz.0: I: n:12/2341 t:4 f:0x00 d:0x00000001 s:3864 p:0
[ 484.141371][ T8544] CPU: 0 UID: 0 PID: 8544 Comm: syz.3.466 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 484.141392][ T8544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 484.141403][ T8544] Call Trace:
[ 484.141411][ T8544]
[ 484.141419][ T8544] dump_stack_lvl+0xe8/0x150
[ 484.141447][ T8544] gfs2_withdraw+0xc3/0x1b0
[ 484.141478][ T8544] gfs2_dirent_scan+0x545/0x690
[ 484.141502][ T8544] ? __pfx_gfs2_dirent_gather+0x10/0x10
[ 484.141527][ T8544] gfs2_dir_read+0x78e/0x1760
[ 484.141552][ T8544] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 484.141581][ T8544] ? __pfx_inode_dio_wait+0x10/0x10
[ 484.141614][ T8544] ? __pfx_gfs2_dir_read+0x10/0x10
[ 484.141647][ T8544] ? gfs2_glock_wait+0x212/0x2a0
[ 484.141671][ T8544] gfs2_readdir+0x16c/0x1e0
[ 484.141693][ T8544] ? __pfx_gfs2_readdir+0x10/0x10
[ 484.141709][ T8544] ? down_read_killable+0x14c/0x220
[ 484.141731][ T8544] ? iterate_dir+0x3a5/0x580
[ 484.141749][ T8544] ? apparmor_file_permission+0x1f4/0x300
[ 484.141776][ T8544] iterate_dir+0x3a5/0x580
[ 484.141797][ T8544] __se_sys_getdents+0xf1/0x270
[ 484.141818][ T8544] ? __pfx___se_sys_getdents+0x10/0x10
[ 484.141838][ T8544] ? __pfx_filldir+0x10/0x10
[ 484.141856][ T8544] ? rcu_is_watching+0x15/0xb0
[ 484.141886][ T8544] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 484.141908][ T8544] do_syscall_64+0x15f/0xf80
[ 484.141927][ T8544] ? trace_irq_disable+0x3b/0x140
[ 484.141949][ T8544] ? clear_bhb_loop+0x40/0x90
[ 484.141970][ T8544] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 484.141987][ T8544] RIP: 0033:0x7f6c6c117be9
[ 484.142005][ T8544] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 484.142021][ T8544] RSP: 002b:00007f6c6b38e028 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
[ 484.142041][ T8544] RAX: ffffffffffffffda RBX: 00007f6c6c2e5f80 RCX: 00007f6c6c117be9
[ 484.142055][ T8544] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
[ 484.142067][ T8544] RBP: 00007f6c6c19b2bf R08: 0000000000000000 R09: 0000000000000000
[ 484.142080][ T8544] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
[ 484.142091][ T8544] R13: 0000000000000000 R14: 00007f6c6c2e5f80 R15: 00007ffcf9862bf8
[ 484.142119][ T8544]
[ 484.146961][ T8544] gfs2: fsid=syz:syz.0: about to withdraw this file system
[ 484.147106][ T5736] gfs2: fsid=syz:syz.0: file system withdrawn
[ 484.309164][ T8548] loop0: detected capacity change from 0 to 32768
[ 484.332159][ T8548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 484.332182][ T8548] CPU: 0 UID: 0 PID: 8548 Comm: syz.0.465 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 484.332203][ T8548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 484.332215][ T8548] Call Trace:
[ 484.332222][ T8548]
[ 484.332230][ T8548] dump_stack_lvl+0xe8/0x150
[ 484.332259][ T8548] sysfs_create_dir_ns+0x271/0x2a0
[ 484.332283][ T8548] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 484.332311][ T8548] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 484.332336][ T8548] ? rt_spin_unlock+0x160/0x200
[ 484.332362][ T8548] kobject_add_internal+0x631/0xd10
[ 484.332395][ T8548] kobject_init_and_add+0x12b/0x1a0
[ 484.332423][ T8548] ? __pfx_kobject_init_and_add+0x10/0x10
[ 484.332449][ T8548] ? __raw_spin_lock_init+0x45/0x100
[ 484.332485][ T8548] ? __init_swait_queue_head+0xa9/0x150
[ 484.332514][ T8548] gfs2_sys_fs_add+0x257/0x480
[ 484.332538][ T8548] ? is_dynamic_key+0x1ac/0x1c0
[ 484.332557][ T8548] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 484.332589][ T8548] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 484.332620][ T8548] gfs2_fill_super+0x141c/0x2220
[ 484.332655][ T8548] ? __pfx_gfs2_fill_super+0x10/0x10
[ 484.332671][ T8548] ? rt_spin_unlock+0x14f/0x200
[ 484.332703][ T8548] ? sb_set_blocksize+0x11b/0x210
[ 484.332724][ T8548] ? setup_bdev_super+0x4c1/0x5b0
[ 484.332754][ T8548] get_tree_bdev_flags+0x431/0x4f0
[ 484.332779][ T8548] ? __pfx_gfs2_fill_super+0x10/0x10
[ 484.332797][ T8548] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 484.332821][ T8548] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 484.332856][ T8548] gfs2_get_tree+0x51/0x1e0
[ 484.332877][ T8548] vfs_get_tree+0x92/0x2a0
[ 484.332904][ T8548] do_new_mount+0x341/0xd30
[ 484.332924][ T8548] ? apparmor_capable+0x126/0x170
[ 484.332951][ T8548] ? __pfx_do_new_mount+0x10/0x10
[ 484.332970][ T8548] ? ns_capable+0x89/0xe0
[ 484.332997][ T8548] ? user_path_at+0xd4/0x160
[ 484.333023][ T8548] ? user_path_at+0xd4/0x160
[ 484.333047][ T8548] __se_sys_mount+0x31d/0x420
[ 484.333074][ T8548] ? __pfx___se_sys_mount+0x10/0x10
[ 484.333101][ T8548] ? __x64_sys_mount+0x20/0xc0
[ 484.333121][ T8548] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 484.333140][ T8548] do_syscall_64+0x15f/0xf80
[ 484.333160][ T8548] ? trace_irq_disable+0x3b/0x140
[ 484.333186][ T8548] ? clear_bhb_loop+0x40/0x90
[ 484.333207][ T8548] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 484.333226][ T8548] RIP: 0033:0x7fc5b8848e8a
[ 484.333244][ T8548] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 484.333260][ T8548] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 484.333280][ T8548] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 484.333294][ T8548] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 484.333307][ T8548] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 484.333320][ T8548] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 484.333332][ T8548] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 484.333360][ T8548]
[ 484.333397][ T8548] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 484.333412][ T8548] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 485.466552][ T8552] loop2: detected capacity change from 0 to 32768
[ 485.511283][ T8552] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 485.511303][ T8552] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 485.550459][ T8558] loop4: detected capacity change from 0 to 32768
[ 485.594849][ T8558] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 485.594871][ T8558] CPU: 0 UID: 0 PID: 8558 Comm: syz.4.469 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 485.594897][ T8558] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 485.594907][ T8558] Call Trace:
[ 485.594913][ T8558]
[ 485.594920][ T8558] dump_stack_lvl+0xe8/0x150
[ 485.594944][ T8558] sysfs_create_dir_ns+0x271/0x2a0
[ 485.594963][ T8558] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 485.594984][ T8558] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 485.595003][ T8558] ? rt_spin_unlock+0x160/0x200
[ 485.595025][ T8558] kobject_add_internal+0x631/0xd10
[ 485.595049][ T8558] kobject_init_and_add+0x12b/0x1a0
[ 485.595071][ T8558] ? __pfx_kobject_init_and_add+0x10/0x10
[ 485.595090][ T8558] ? __raw_spin_lock_init+0x45/0x100
[ 485.595112][ T8558] ? __init_swait_queue_head+0xa9/0x150
[ 485.595136][ T8558] gfs2_sys_fs_add+0x257/0x480
[ 485.595156][ T8558] ? is_dynamic_key+0x1ac/0x1c0
[ 485.595172][ T8558] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 485.595197][ T8558] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 485.595224][ T8558] gfs2_fill_super+0x141c/0x2220
[ 485.595250][ T8558] ? __pfx_gfs2_fill_super+0x10/0x10
[ 485.595264][ T8558] ? rt_spin_unlock+0x14f/0x200
[ 485.595290][ T8558] ? sb_set_blocksize+0x11b/0x210
[ 485.595308][ T8558] ? setup_bdev_super+0x4c1/0x5b0
[ 485.595330][ T8558] get_tree_bdev_flags+0x431/0x4f0
[ 485.595350][ T8558] ? __pfx_gfs2_fill_super+0x10/0x10
[ 485.595364][ T8558] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 485.595381][ T8558] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 485.595410][ T8558] gfs2_get_tree+0x51/0x1e0
[ 485.595429][ T8558] vfs_get_tree+0x92/0x2a0
[ 485.595451][ T8558] do_new_mount+0x341/0xd30
[ 485.595468][ T8558] ? apparmor_capable+0x126/0x170
[ 485.595491][ T8558] ? __pfx_do_new_mount+0x10/0x10
[ 485.595508][ T8558] ? ns_capable+0x89/0xe0
[ 485.595537][ T8558] ? user_path_at+0xd4/0x160
[ 485.595564][ T8558] ? user_path_at+0xd4/0x160
[ 485.595583][ T8558] __se_sys_mount+0x31d/0x420
[ 485.595604][ T8558] ? __pfx___se_sys_mount+0x10/0x10
[ 485.595626][ T8558] ? __x64_sys_mount+0x20/0xc0
[ 485.595642][ T8558] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 485.595657][ T8558] do_syscall_64+0x15f/0xf80
[ 485.595672][ T8558] ? trace_irq_disable+0x3b/0x140
[ 485.595694][ T8558] ? clear_bhb_loop+0x40/0x90
[ 485.595711][ T8558] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 485.595725][ T8558] RIP: 0033:0x7ffa32018e8a
[ 485.595741][ T8558] 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
[ 485.595755][ T8558] RSP: 002b:00007ffa3128de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 485.595771][ T8558] RAX: ffffffffffffffda RBX: 00007ffa3128dee0 RCX: 00007ffa32018e8a
[ 485.595782][ T8558] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffa3128dea0
[ 485.595792][ T8558] RBP: 0000000020000000 R08: 00007ffa3128dee0 R09: 0000000000208c1b
[ 485.595803][ T8558] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 485.595812][ T8558] R13: 00007ffa3128dea0 R14: 0000000000012752 R15: 0000000020013100
[ 485.595835][ T8558]
[ 485.595862][ T8558] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 485.595876][ T8558] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 485.738632][ T8552] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 485.740744][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 485.740761][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 486.262544][ T10] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 521ms
[ 486.263589][ T10] gfs2: fsid=syz:syz.0: jid=0: Done
[ 486.263697][ T8552] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 486.713544][ T8560] loop1: detected capacity change from 0 to 32768
[ 486.756460][ T8560] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 486.756480][ T8560] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 486.848840][ T8560] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 486.875430][ T6186] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 486.875452][ T6186] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...
[ 487.002507][ T6186] gfs2: fsid=syz:syz.0: jid=0: Journal head lookup took 127ms
[ 487.003812][ T6186] gfs2: fsid=syz:syz.0: jid=0: Done
[ 487.003867][ T8560] gfs2: fsid=syz:syz.0: first mount done, others may mount
[ 487.039835][ T8564] loop0: detected capacity change from 0 to 32768
[ 487.074416][ T8564] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 487.074439][ T8564] CPU: 1 UID: 0 PID: 8564 Comm: syz.0.471 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 487.074460][ T8564] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 487.074471][ T8564] Call Trace:
[ 487.074479][ T8564]
[ 487.074488][ T8564] dump_stack_lvl+0xe8/0x150
[ 487.074517][ T8564] sysfs_create_dir_ns+0x271/0x2a0
[ 487.074542][ T8564] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 487.074569][ T8564] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 487.074595][ T8564] ? rt_spin_unlock+0x160/0x200
[ 487.074622][ T8564] kobject_add_internal+0x631/0xd10
[ 487.074655][ T8564] kobject_init_and_add+0x12b/0x1a0
[ 487.074684][ T8564] ? __pfx_kobject_init_and_add+0x10/0x10
[ 487.074710][ T8564] ? __raw_spin_lock_init+0x45/0x100
[ 487.074740][ T8564] ? __init_swait_queue_head+0xa9/0x150
[ 487.074770][ T8564] gfs2_sys_fs_add+0x257/0x480
2026/05/06 19:26:09 executed programs: 469
[ 487.074793][ T8564] ? is_dynamic_key+0x1ac/0x1c0
[ 487.074814][ T8564] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 487.074847][ T8564] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 487.074877][ T8564] gfs2_fill_super+0x141c/0x2220
[ 487.074933][ T8564] ? __pfx_gfs2_fill_super+0x10/0x10
[ 487.074950][ T8564] ? rt_spin_unlock+0x14f/0x200
[ 487.074978][ T8564] ? sb_set_blocksize+0x11b/0x210
[ 487.075000][ T8564] ? setup_bdev_super+0x4c1/0x5b0
[ 487.075030][ T8564] get_tree_bdev_flags+0x431/0x4f0
[ 487.075056][ T8564] ? __pfx_gfs2_fill_super+0x10/0x10
[ 487.075076][ T8564] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 487.075100][ T8564] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 487.075146][ T8564] gfs2_get_tree+0x51/0x1e0
[ 487.075167][ T8564] vfs_get_tree+0x92/0x2a0
[ 487.075193][ T8564] do_new_mount+0x341/0xd30
[ 487.075212][ T8564] ? apparmor_capable+0x126/0x170
[ 487.075236][ T8564] ? __pfx_do_new_mount+0x10/0x10
[ 487.075256][ T8564] ? ns_capable+0x89/0xe0
[ 487.075282][ T8564] ? user_path_at+0xd4/0x160
[ 487.075309][ T8564] ? user_path_at+0xd4/0x160
[ 487.075335][ T8564] __se_sys_mount+0x31d/0x420
[ 487.075363][ T8564] ? __pfx___se_sys_mount+0x10/0x10
[ 487.075392][ T8564] ? __x64_sys_mount+0x20/0xc0
[ 487.075414][ T8564] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 487.075435][ T8564] do_syscall_64+0x15f/0xf80
[ 487.075455][ T8564] ? trace_irq_disable+0x3b/0x140
[ 487.075483][ T8564] ? clear_bhb_loop+0x40/0x90
[ 487.075515][ T8564] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 487.075534][ T8564] RIP: 0033:0x7fc5b8848e8a
[ 487.075553][ T8564] 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
[ 487.075569][ T8564] RSP: 002b:00007fc5b7abde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 487.075589][ T8564] RAX: ffffffffffffffda RBX: 00007fc5b7abdee0 RCX: 00007fc5b8848e8a
[ 487.075604][ T8564] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc5b7abdea0
[ 487.075616][ T8564] RBP: 0000000020000000 R08: 00007fc5b7abdee0 R09: 0000000000208c1b
[ 487.075628][ T8564] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 487.075640][ T8564] R13: 00007fc5b7abdea0 R14: 0000000000012752 R15: 0000000020013100
[ 487.075670][ T8564]
[ 487.075769][ T8564] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 487.075785][ T8564] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 487.859250][ T8573] loop4: detected capacity change from 0 to 32768
[ 487.871834][ T8566] loop3: detected capacity change from 0 to 32768
[ 487.965761][ T8573] gfs2: fsid=syz:syz: Trying to join cluster "lock_nolock", "syz:syz"
[ 487.965780][ T8573] gfs2: fsid=syz:syz: Now mounting FS (format 1801)...
[ 487.996247][ T8566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 487.996271][ T8566] CPU: 0 UID: 0 PID: 8566 Comm: syz.3.470 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 487.996300][ T8566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 487.996311][ T8566] Call Trace:
[ 487.996318][ T8566]
[ 487.996327][ T8566] dump_stack_lvl+0xe8/0x150
[ 487.996355][ T8566] sysfs_create_dir_ns+0x271/0x2a0
[ 487.996377][ T8566] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 487.996402][ T8566] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 487.996429][ T8566] ? rt_spin_unlock+0x160/0x200
[ 487.996456][ T8566] kobject_add_internal+0x631/0xd10
[ 487.996490][ T8566] kobject_init_and_add+0x12b/0x1a0
[ 487.996519][ T8566] ? __pfx_kobject_init_and_add+0x10/0x10
[ 487.996546][ T8566] ? __raw_spin_lock_init+0x45/0x100
[ 487.996574][ T8566] ? __init_swait_queue_head+0xa9/0x150
[ 487.996604][ T8566] gfs2_sys_fs_add+0x257/0x480
[ 487.996629][ T8566] ? is_dynamic_key+0x1ac/0x1c0
[ 487.996649][ T8566] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 487.996683][ T8566] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 487.996718][ T8566] gfs2_fill_super+0x141c/0x2220
[ 487.996753][ T8566] ? __pfx_gfs2_fill_super+0x10/0x10
[ 487.996772][ T8566] ? rt_spin_unlock+0x14f/0x200
[ 487.996801][ T8566] ? sb_set_blocksize+0x11b/0x210
[ 487.996822][ T8566] ? setup_bdev_super+0x4c1/0x5b0
[ 487.996853][ T8566] get_tree_bdev_flags+0x431/0x4f0
[ 487.996880][ T8566] ? __pfx_gfs2_fill_super+0x10/0x10
[ 487.996900][ T8566] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 487.996925][ T8566] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 487.996961][ T8566] gfs2_get_tree+0x51/0x1e0
[ 487.996985][ T8566] vfs_get_tree+0x92/0x2a0
[ 487.997014][ T8566] do_new_mount+0x341/0xd30
[ 487.997034][ T8566] ? apparmor_capable+0x126/0x170
[ 487.997060][ T8566] ? __pfx_do_new_mount+0x10/0x10
[ 487.997082][ T8566] ? ns_capable+0x89/0xe0
[ 487.997112][ T8566] ? user_path_at+0xd4/0x160
[ 487.997140][ T8566] ? user_path_at+0xd4/0x160
[ 487.997166][ T8566] __se_sys_mount+0x31d/0x420
[ 487.997194][ T8566] ? __pfx___se_sys_mount+0x10/0x10
[ 487.997222][ T8566] ? __x64_sys_mount+0x20/0xc0
[ 487.997244][ T8566] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 487.997265][ T8566] do_syscall_64+0x15f/0xf80
[ 487.997286][ T8566] ? trace_irq_disable+0x3b/0x140
[ 487.997319][ T8566] ? clear_bhb_loop+0x40/0x90
[ 487.997343][ T8566] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 487.997362][ T8566] RIP: 0033:0x7f6c6c118e8a
[ 487.997382][ T8566] 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
[ 487.997399][ T8566] RSP: 002b:00007f6c6b38de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 487.997419][ T8566] RAX: ffffffffffffffda RBX: 00007f6c6b38dee0 RCX: 00007f6c6c118e8a
[ 487.997433][ T8566] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6c6b38dea0
[ 487.997447][ T8566] RBP: 0000000020000000 R08: 00007f6c6b38dee0 R09: 0000000000208c1b
[ 487.997460][ T8566] R10: 0000000000208c1b R11: 0000000000000246 R12: 0000000020000100
[ 487.997472][ T8566] R13: 00007f6c6b38dea0 R14: 0000000000012752 R15: 0000000020013100
[ 487.997501][ T8566]
[ 487.997529][ T8566] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 487.997544][ T8566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 488.201826][ T8573] gfs2: fsid=syz:syz.0: journal 0 mapped with 16 extents in 0ms
[ 488.218959][ T10] gfs2: fsid=syz:syz.0: jid=0, already locked for use
[ 488.218977][ T10] gfs2: fsid=syz:syz.0: jid=0: Looking at journal...