283.491926][ T7442] gfs2_fill_super+0x141c/0x2220
[ 283.491962][ T7442] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.491980][ T7442] ? rt_spin_unlock+0x14f/0x200
[ 283.492009][ T7442] ? sb_set_blocksize+0x11b/0x210
[ 283.492031][ T7442] ? setup_bdev_super+0x4c1/0x5b0
[ 283.492060][ T7442] get_tree_bdev_flags+0x431/0x4f0
[ 283.492086][ T7442] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.492105][ T7442] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 283.492129][ T7442] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 283.492171][ T7442] gfs2_get_tree+0x51/0x1e0
[ 283.492194][ T7442] vfs_get_tree+0x92/0x2a0
[ 283.492222][ T7442] do_new_mount+0x341/0xd30
[ 283.492241][ T7442] ? apparmor_capable+0x126/0x170
[ 283.492268][ T7442] ? __pfx_do_new_mount+0x10/0x10
[ 283.492290][ T7442] ? ns_capable+0x89/0xe0
[ 283.492319][ T7442] ? user_path_at+0xd4/0x160
[ 283.492346][ T7442] ? user_path_at+0xd4/0x160
[ 283.492370][ T7442] __se_sys_mount+0x31d/0x420
[ 283.492397][ T7442] ? __pfx___se_sys_mount+0x10/0x10
[ 283.492425][ T7442] ? __x64_sys_mount+0x20/0xc0
[ 283.492446][ T7442] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.492466][ T7442] do_syscall_64+0x15f/0xf80
[ 283.492486][ T7442] ? trace_irq_disable+0x3b/0x140
[ 283.492512][ T7442] ? clear_bhb_loop+0x40/0x90
[ 283.492535][ T7442] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.492552][ T7442] RIP: 0033:0x7fbd28b9b5ca
[ 283.492571][ T7442] 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
[ 283.492586][ T7442] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 283.492606][ T7442] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 283.492620][ T7442] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 283.492633][ T7442] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 283.492645][ T7442] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 283.492658][ T7442] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 283.492688][ T7442]
[ 283.492804][ T7442] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 283.492820][ T7442] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 283.895553][ T7446] loop3: detected capacity change from 0 to 32768
[ 283.946491][ T7446] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 283.946513][ T7446] CPU: 1 UID: 0 PID: 7446 Comm: syz.3.176 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 283.946532][ T7446] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 283.946542][ T7446] Call Trace:
[ 283.946550][ T7446]
[ 283.946557][ T7446] dump_stack_lvl+0xe8/0x150
[ 283.946586][ T7446] sysfs_create_dir_ns+0x271/0x2a0
[ 283.946610][ T7446] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 283.946639][ T7446] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 283.946664][ T7446] ? rt_spin_unlock+0x160/0x200
[ 283.946690][ T7446] kobject_add_internal+0x631/0xd10
[ 283.946721][ T7446] kobject_init_and_add+0x12b/0x1a0
[ 283.946750][ T7446] ? __pfx_kobject_init_and_add+0x10/0x10
[ 283.946773][ T7446] ? __raw_spin_lock_init+0x45/0x100
[ 283.946800][ T7446] ? __init_swait_queue_head+0xa9/0x150
[ 283.946826][ T7446] gfs2_sys_fs_add+0x257/0x480
[ 283.946849][ T7446] ? is_dynamic_key+0x1ac/0x1c0
[ 283.946868][ T7446] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 283.946901][ T7446] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 283.946938][ T7446] gfs2_fill_super+0x141c/0x2220
[ 283.946972][ T7446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.946989][ T7446] ? rt_spin_unlock+0x14f/0x200
[ 283.947013][ T7446] ? sb_set_blocksize+0x11b/0x210
[ 283.947033][ T7446] ? setup_bdev_super+0x4c1/0x5b0
[ 283.947062][ T7446] get_tree_bdev_flags+0x431/0x4f0
[ 283.947088][ T7446] ? __pfx_gfs2_fill_super+0x10/0x10
[ 283.947108][ T7446] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 283.947144][ T7446] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 283.947179][ T7446] gfs2_get_tree+0x51/0x1e0
[ 283.947202][ T7446] vfs_get_tree+0x92/0x2a0
[ 283.947229][ T7446] do_new_mount+0x341/0xd30
[ 283.947250][ T7446] ? apparmor_capable+0x126/0x170
[ 283.947276][ T7446] ? __pfx_do_new_mount+0x10/0x10
[ 283.947298][ T7446] ? ns_capable+0x89/0xe0
[ 283.947325][ T7446] ? user_path_at+0xd4/0x160
[ 283.947352][ T7446] ? user_path_at+0xd4/0x160
[ 283.947376][ T7446] __se_sys_mount+0x31d/0x420
[ 283.947404][ T7446] ? __pfx___se_sys_mount+0x10/0x10
[ 283.947432][ T7446] ? __x64_sys_mount+0x20/0xc0
[ 283.947453][ T7446] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.947473][ T7446] do_syscall_64+0x15f/0xf80
[ 283.947494][ T7446] ? trace_irq_disable+0x3b/0x140
[ 283.947519][ T7446] ? clear_bhb_loop+0x40/0x90
[ 283.947541][ T7446] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 283.947559][ T7446] RIP: 0033:0x7f4354b3b5ca
[ 283.947577][ T7446] 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
[ 283.947592][ T7446] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 283.947613][ T7446] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 283.947626][ T7446] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 283.947639][ T7446] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 283.947652][ T7446] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 283.947664][ T7446] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 283.947695][ T7446]
[ 283.947733][ T7446] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 283.947748][ T7446] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 284.195146][ T6799] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 284.607525][ T7110] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 284.874136][ T7448] loop2: detected capacity change from 0 to 32768
[ 284.893706][ T7448] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 284.893728][ T7448] CPU: 0 UID: 0 PID: 7448 Comm: syz.2.177 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 284.893750][ T7448] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 284.893760][ T7448] Call Trace:
[ 284.893768][ T7448]
[ 284.893776][ T7448] dump_stack_lvl+0xe8/0x150
[ 284.893805][ T7448] sysfs_create_dir_ns+0x271/0x2a0
[ 284.893828][ T7448] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 284.893855][ T7448] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 284.893876][ T7448] ? rt_spin_unlock+0x160/0x200
[ 284.893902][ T7448] kobject_add_internal+0x631/0xd10
[ 284.893933][ T7448] kobject_init_and_add+0x12b/0x1a0
[ 284.893962][ T7448] ? __pfx_kobject_init_and_add+0x10/0x10
[ 284.893987][ T7448] ? __raw_spin_lock_init+0x45/0x100
[ 284.894014][ T7448] ? __init_swait_queue_head+0xa9/0x150
[ 284.894044][ T7448] gfs2_sys_fs_add+0x257/0x480
[ 284.894068][ T7448] ? is_dynamic_key+0x1ac/0x1c0
[ 284.894087][ T7448] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 284.894117][ T7448] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 284.894149][ T7448] gfs2_fill_super+0x141c/0x2220
[ 284.894182][ T7448] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.894199][ T7448] ? rt_spin_unlock+0x14f/0x200
[ 284.894236][ T7448] ? sb_set_blocksize+0x11b/0x210
[ 284.894258][ T7448] ? setup_bdev_super+0x4c1/0x5b0
[ 284.894287][ T7448] get_tree_bdev_flags+0x431/0x4f0
[ 284.894313][ T7448] ? __pfx_gfs2_fill_super+0x10/0x10
[ 284.894332][ T7448] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 284.894355][ T7448] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 284.894388][ T7448] gfs2_get_tree+0x51/0x1e0
[ 284.894411][ T7448] vfs_get_tree+0x92/0x2a0
[ 284.894435][ T7448] do_new_mount+0x341/0xd30
[ 284.894452][ T7448] ? apparmor_capable+0x126/0x170
[ 284.894478][ T7448] ? __pfx_do_new_mount+0x10/0x10
[ 284.894498][ T7448] ? ns_capable+0x89/0xe0
[ 284.894521][ T7448] ? user_path_at+0xd4/0x160
[ 284.894548][ T7448] ? user_path_at+0xd4/0x160
[ 284.894572][ T7448] __se_sys_mount+0x31d/0x420
[ 284.894600][ T7448] ? __pfx___se_sys_mount+0x10/0x10
[ 284.894626][ T7448] ? __x64_sys_mount+0x20/0xc0
[ 284.894647][ T7448] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.894666][ T7448] do_syscall_64+0x15f/0xf80
[ 284.894686][ T7448] ? trace_irq_disable+0x3b/0x140
[ 284.894711][ T7448] ? clear_bhb_loop+0x40/0x90
[ 284.894732][ T7448] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 284.894751][ T7448] RIP: 0033:0x7ff71f8cb5ca
[ 284.894769][ T7448] 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
[ 284.894784][ T7448] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 284.894803][ T7448] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 284.894817][ T7448] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 284.894829][ T7448] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 284.894842][ T7448] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 284.894854][ T7448] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 284.894884][ T7448]
[ 284.898053][ T7448] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 284.898073][ T7448] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.245162][ T7453] loop4: detected capacity change from 0 to 32768
[ 285.271028][ T7453] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 285.271050][ T7453] CPU: 0 UID: 0 PID: 7453 Comm: syz.4.178 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 285.271071][ T7453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 285.271082][ T7453] Call Trace:
[ 285.271090][ T7453]
[ 285.271098][ T7453] dump_stack_lvl+0xe8/0x150
[ 285.271126][ T7453] sysfs_create_dir_ns+0x271/0x2a0
[ 285.271150][ T7453] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 285.271176][ T7453] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 285.271201][ T7453] ? rt_spin_unlock+0x160/0x200
[ 285.271242][ T7453] kobject_add_internal+0x631/0xd10
[ 285.271275][ T7453] kobject_init_and_add+0x12b/0x1a0
[ 285.271305][ T7453] ? __pfx_kobject_init_and_add+0x10/0x10
[ 285.271331][ T7453] ? __raw_spin_lock_init+0x45/0x100
[ 285.271359][ T7453] ? __init_swait_queue_head+0xa9/0x150
[ 285.271389][ T7453] gfs2_sys_fs_add+0x257/0x480
[ 285.271412][ T7453] ? is_dynamic_key+0x1ac/0x1c0
[ 285.271432][ T7453] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 285.271464][ T7453] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 285.271499][ T7453] gfs2_fill_super+0x141c/0x2220
[ 285.271534][ T7453] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.271552][ T7453] ? rt_spin_unlock+0x14f/0x200
[ 285.271582][ T7453] ? sb_set_blocksize+0x11b/0x210
[ 285.271603][ T7453] ? setup_bdev_super+0x4c1/0x5b0
[ 285.271633][ T7453] get_tree_bdev_flags+0x431/0x4f0
[ 285.271658][ T7453] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.271678][ T7453] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 285.271701][ T7453] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 285.271737][ T7453] gfs2_get_tree+0x51/0x1e0
[ 285.271760][ T7453] vfs_get_tree+0x92/0x2a0
[ 285.271788][ T7453] do_new_mount+0x341/0xd30
[ 285.271808][ T7453] ? apparmor_capable+0x126/0x170
[ 285.271832][ T7453] ? __pfx_do_new_mount+0x10/0x10
[ 285.271853][ T7453] ? ns_capable+0x89/0xe0
[ 285.271880][ T7453] ? user_path_at+0xd4/0x160
[ 285.271907][ T7453] ? user_path_at+0xd4/0x160
2026/05/08 01:07:30 executed programs: 175
[ 285.271933][ T7453] __se_sys_mount+0x31d/0x420
[ 285.271960][ T7453] ? __pfx___se_sys_mount+0x10/0x10
[ 285.271988][ T7453] ? __x64_sys_mount+0x20/0xc0
[ 285.272009][ T7453] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.272029][ T7453] do_syscall_64+0x15f/0xf80
[ 285.272049][ T7453] ? trace_irq_disable+0x3b/0x140
[ 285.272076][ T7453] ? clear_bhb_loop+0x40/0x90
[ 285.272098][ T7453] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.272116][ T7453] RIP: 0033:0x7fd5f95bb5ca
[ 285.272135][ T7453] 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
[ 285.272151][ T7453] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 285.272171][ T7453] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 285.272185][ T7453] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 285.272199][ T7453] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 285.272211][ T7453] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 285.272229][ T7453] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 285.272258][ T7453]
[ 285.285131][ T7453] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.285152][ T7453] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.744925][ T7454] loop5: detected capacity change from 0 to 32768
[ 285.862218][ T7460] loop0: detected capacity change from 0 to 32768
[ 285.868785][ T7454] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 285.868807][ T7454] CPU: 0 UID: 0 PID: 7454 Comm: syz.5.179 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 285.868829][ T7454] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 285.868839][ T7454] Call Trace:
[ 285.868845][ T7454]
[ 285.868854][ T7454] dump_stack_lvl+0xe8/0x150
[ 285.868882][ T7454] sysfs_create_dir_ns+0x271/0x2a0
[ 285.868916][ T7454] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 285.868941][ T7454] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 285.868964][ T7454] ? rt_spin_unlock+0x160/0x200
[ 285.868989][ T7454] kobject_add_internal+0x631/0xd10
[ 285.869018][ T7454] kobject_init_and_add+0x12b/0x1a0
[ 285.869047][ T7454] ? __pfx_kobject_init_and_add+0x10/0x10
[ 285.869073][ T7454] ? __raw_spin_lock_init+0x45/0x100
[ 285.869100][ T7454] ? __init_swait_queue_head+0xa9/0x150
[ 285.869131][ T7454] gfs2_sys_fs_add+0x257/0x480
[ 285.869153][ T7454] ? is_dynamic_key+0x1ac/0x1c0
[ 285.869172][ T7454] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 285.869208][ T7454] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 285.869242][ T7454] gfs2_fill_super+0x141c/0x2220
[ 285.869277][ T7454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.869295][ T7454] ? rt_spin_unlock+0x14f/0x200
[ 285.869325][ T7454] ? sb_set_blocksize+0x11b/0x210
[ 285.869347][ T7454] ? setup_bdev_super+0x4c1/0x5b0
[ 285.869376][ T7454] get_tree_bdev_flags+0x431/0x4f0
[ 285.869402][ T7454] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.869421][ T7454] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 285.869444][ T7454] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 285.869481][ T7454] gfs2_get_tree+0x51/0x1e0
[ 285.869504][ T7454] vfs_get_tree+0x92/0x2a0
[ 285.869531][ T7454] do_new_mount+0x341/0xd30
[ 285.869551][ T7454] ? apparmor_capable+0x126/0x170
[ 285.869576][ T7454] ? __pfx_do_new_mount+0x10/0x10
[ 285.869594][ T7454] ? ns_capable+0x89/0xe0
[ 285.869619][ T7454] ? user_path_at+0xd4/0x160
[ 285.869643][ T7454] ? user_path_at+0xd4/0x160
[ 285.869666][ T7454] __se_sys_mount+0x31d/0x420
[ 285.869690][ T7454] ? __pfx___se_sys_mount+0x10/0x10
[ 285.869716][ T7454] ? __x64_sys_mount+0x20/0xc0
[ 285.869736][ T7454] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.869755][ T7454] do_syscall_64+0x15f/0xf80
[ 285.869775][ T7454] ? trace_irq_disable+0x3b/0x140
[ 285.869798][ T7454] ? clear_bhb_loop+0x40/0x90
[ 285.869819][ T7454] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.869834][ T7454] RIP: 0033:0x7f523924b5ca
[ 285.869852][ T7454] 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
[ 285.869867][ T7454] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 285.869902][ T7454] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 285.869916][ T7454] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 285.869927][ T7454] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 285.869935][ T7454] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 285.869944][ T7454] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 285.869978][ T7454]
[ 285.871831][ T7454] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.871850][ T7454] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 285.901140][ T6799] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 285.929128][ T7460] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 285.929150][ T7460] CPU: 1 UID: 0 PID: 7460 Comm: syz.0.180 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 285.929171][ T7460] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 285.929194][ T7460] Call Trace:
[ 285.929202][ T7460]
[ 285.929210][ T7460] dump_stack_lvl+0xe8/0x150
[ 285.929237][ T7460] sysfs_create_dir_ns+0x271/0x2a0
[ 285.929260][ T7460] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 285.929287][ T7460] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 285.929311][ T7460] ? rt_spin_unlock+0x160/0x200
[ 285.929339][ T7460] kobject_add_internal+0x631/0xd10
[ 285.929371][ T7460] kobject_init_and_add+0x12b/0x1a0
[ 285.929401][ T7460] ? __pfx_kobject_init_and_add+0x10/0x10
[ 285.929426][ T7460] ? __raw_spin_lock_init+0x45/0x100
[ 285.929452][ T7460] ? __init_swait_queue_head+0xa9/0x150
[ 285.929481][ T7460] gfs2_sys_fs_add+0x257/0x480
[ 285.929504][ T7460] ? is_dynamic_key+0x1ac/0x1c0
[ 285.929523][ T7460] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 285.929556][ T7460] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 285.929590][ T7460] gfs2_fill_super+0x141c/0x2220
[ 285.929623][ T7460] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.929640][ T7460] ? rt_spin_unlock+0x14f/0x200
[ 285.929667][ T7460] ? sb_set_blocksize+0x11b/0x210
[ 285.929686][ T7460] ? setup_bdev_super+0x4c1/0x5b0
[ 285.929713][ T7460] get_tree_bdev_flags+0x431/0x4f0
[ 285.929738][ T7460] ? __pfx_gfs2_fill_super+0x10/0x10
[ 285.929755][ T7460] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 285.929776][ T7460] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 285.929810][ T7460] gfs2_get_tree+0x51/0x1e0
[ 285.929833][ T7460] vfs_get_tree+0x92/0x2a0
[ 285.929860][ T7460] do_new_mount+0x341/0xd30
[ 285.929879][ T7460] ? apparmor_capable+0x126/0x170
[ 285.929902][ T7460] ? __pfx_do_new_mount+0x10/0x10
[ 285.929922][ T7460] ? ns_capable+0x89/0xe0
[ 285.929945][ T7460] ? user_path_at+0xd4/0x160
[ 285.929967][ T7460] ? user_path_at+0xd4/0x160
[ 285.929987][ T7460] __se_sys_mount+0x31d/0x420
[ 285.930010][ T7460] ? __pfx___se_sys_mount+0x10/0x10
[ 285.930036][ T7460] ? __x64_sys_mount+0x20/0xc0
[ 285.930056][ T7460] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.930074][ T7460] do_syscall_64+0x15f/0xf80
[ 285.930093][ T7460] ? trace_irq_disable+0x3b/0x140
[ 285.930118][ T7460] ? clear_bhb_loop+0x40/0x90
[ 285.930137][ T7460] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 285.930154][ T7460] RIP: 0033:0x7fbd28b9b5ca
[ 285.930170][ T7460] 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
[ 285.930231][ T7460] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 285.930252][ T7460] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 285.930265][ T7460] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 285.930276][ T7460] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 285.930288][ T7460] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 285.930301][ T7460] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 285.930331][ T7460]
[ 285.989779][ T7460] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 285.989798][ T7460] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 286.112058][ T6792] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 286.619356][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 286.931257][ T7110] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 287.998099][ T7470] loop2: detected capacity change from 0 to 32768
[ 288.009360][ T7470] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 288.009382][ T7470] CPU: 0 UID: 0 PID: 7470 Comm: syz.2.182 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 288.009403][ T7470] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 288.009413][ T7470] Call Trace:
[ 288.009419][ T7470]
[ 288.009426][ T7470] dump_stack_lvl+0xe8/0x150
[ 288.009453][ T7470] sysfs_create_dir_ns+0x271/0x2a0
[ 288.009475][ T7470] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 288.009500][ T7470] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 288.009534][ T7470] ? rt_spin_unlock+0x160/0x200
[ 288.009561][ T7470] kobject_add_internal+0x631/0xd10
[ 288.009593][ T7470] kobject_init_and_add+0x12b/0x1a0
[ 288.009623][ T7470] ? __pfx_kobject_init_and_add+0x10/0x10
[ 288.009649][ T7470] ? __raw_spin_lock_init+0x45/0x100
[ 288.009677][ T7470] ? __init_swait_queue_head+0xa9/0x150
[ 288.009707][ T7470] gfs2_sys_fs_add+0x257/0x480
[ 288.009730][ T7470] ? is_dynamic_key+0x1ac/0x1c0
[ 288.009750][ T7470] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 288.009782][ T7470] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 288.009816][ T7470] gfs2_fill_super+0x141c/0x2220
[ 288.009852][ T7470] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.009869][ T7470] ? rt_spin_unlock+0x14f/0x200
[ 288.009899][ T7470] ? sb_set_blocksize+0x11b/0x210
[ 288.009921][ T7470] ? setup_bdev_super+0x4c1/0x5b0
[ 288.009950][ T7470] get_tree_bdev_flags+0x431/0x4f0
[ 288.009985][ T7470] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.010005][ T7470] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 288.010028][ T7470] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 288.010064][ T7470] gfs2_get_tree+0x51/0x1e0
[ 288.010087][ T7470] vfs_get_tree+0x92/0x2a0
[ 288.010116][ T7470] do_new_mount+0x341/0xd30
[ 288.010136][ T7470] ? apparmor_capable+0x126/0x170
[ 288.010162][ T7470] ? __pfx_do_new_mount+0x10/0x10
[ 288.010184][ T7470] ? ns_capable+0x89/0xe0
[ 288.010213][ T7470] ? user_path_at+0xd4/0x160
[ 288.010241][ T7470] ? user_path_at+0xd4/0x160
[ 288.010266][ T7470] __se_sys_mount+0x31d/0x420
[ 288.010294][ T7470] ? __pfx___se_sys_mount+0x10/0x10
[ 288.010322][ T7470] ? __x64_sys_mount+0x20/0xc0
[ 288.010343][ T7470] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.010363][ T7470] do_syscall_64+0x15f/0xf80
[ 288.010384][ T7470] ? trace_irq_disable+0x3b/0x140
[ 288.010410][ T7470] ? clear_bhb_loop+0x40/0x90
[ 288.010432][ T7470] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.010451][ T7470] RIP: 0033:0x7ff71f8cb5ca
[ 288.010469][ T7470] Code: 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
[ 288.010486][ T7470] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 288.010505][ T7470] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 288.010520][ T7470] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 288.010533][ T7470] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 288.010545][ T7470] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 288.010557][ T7470] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 288.010587][ T7470]
[ 288.025559][ T7470] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 288.025582][ T7470] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 288.189199][ T7473] loop4: detected capacity change from 0 to 32768
[ 288.232827][ T7473] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 288.232851][ T7473] CPU: 0 UID: 0 PID: 7473 Comm: syz.4.183 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 288.232873][ T7473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 288.232883][ T7473] Call Trace:
[ 288.232890][ T7473]
[ 288.232898][ T7473] dump_stack_lvl+0xe8/0x150
[ 288.232927][ T7473] sysfs_create_dir_ns+0x271/0x2a0
[ 288.232949][ T7473] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 288.232976][ T7473] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 288.233000][ T7473] ? rt_spin_unlock+0x160/0x200
[ 288.233027][ T7473] kobject_add_internal+0x631/0xd10
[ 288.233060][ T7473] kobject_init_and_add+0x12b/0x1a0
[ 288.233088][ T7473] ? __pfx_kobject_init_and_add+0x10/0x10
[ 288.233114][ T7473] ? __raw_spin_lock_init+0x45/0x100
[ 288.233140][ T7473] ? __init_swait_queue_head+0xa9/0x150
[ 288.233169][ T7473] gfs2_sys_fs_add+0x257/0x480
[ 288.233191][ T7473] ? is_dynamic_key+0x1ac/0x1c0
[ 288.233210][ T7473] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 288.233241][ T7473] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 288.233273][ T7473] gfs2_fill_super+0x141c/0x2220
[ 288.233307][ T7473] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.233324][ T7473] ? rt_spin_unlock+0x14f/0x200
[ 288.233352][ T7473] ? sb_set_blocksize+0x11b/0x210
[ 288.233373][ T7473] ? setup_bdev_super+0x4c1/0x5b0
[ 288.233401][ T7473] get_tree_bdev_flags+0x431/0x4f0
[ 288.233430][ T7473] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.233448][ T7473] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 288.233471][ T7473] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 288.233505][ T7473] gfs2_get_tree+0x51/0x1e0
[ 288.233527][ T7473] vfs_get_tree+0x92/0x2a0
[ 288.233553][ T7473] do_new_mount+0x341/0xd30
[ 288.233573][ T7473] ? apparmor_capable+0x126/0x170
[ 288.233598][ T7473] ? __pfx_do_new_mount+0x10/0x10
[ 288.233619][ T7473] ? ns_capable+0x89/0xe0
[ 288.233645][ T7473] ? user_path_at+0xd4/0x160
[ 288.233671][ T7473] ? user_path_at+0xd4/0x160
[ 288.233696][ T7473] __se_sys_mount+0x31d/0x420
[ 288.233722][ T7473] ? __pfx___se_sys_mount+0x10/0x10
[ 288.233755][ T7473] ? __x64_sys_mount+0x20/0xc0
[ 288.233775][ T7473] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.233794][ T7473] do_syscall_64+0x15f/0xf80
[ 288.233814][ T7473] ? trace_irq_disable+0x3b/0x140
[ 288.233838][ T7473] ? clear_bhb_loop+0x40/0x90
[ 288.233860][ T7473] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.233877][ T7473] RIP: 0033:0x7fd5f95bb5ca
[ 288.233895][ T7473] 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
[ 288.233911][ T7473] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 288.233930][ T7473] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 288.233944][ T7473] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 288.233957][ T7473] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 288.233969][ T7473] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 288.233981][ T7473] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 288.234009][ T7473]
[ 288.234044][ T7473] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 288.234058][ T7473] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 288.870267][ T6798] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 288.898568][ T7480] loop0: detected capacity change from 0 to 32768
[ 288.930556][ T6799] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 288.932593][ T7480] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 288.932614][ T7480] CPU: 0 UID: 0 PID: 7480 Comm: syz.0.184 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 288.932643][ T7480] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 288.932655][ T7480] Call Trace:
[ 288.932662][ T7480]
[ 288.932671][ T7480] dump_stack_lvl+0xe8/0x150
[ 288.932700][ T7480] sysfs_create_dir_ns+0x271/0x2a0
[ 288.932723][ T7480] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 288.932751][ T7480] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 288.932776][ T7480] ? rt_spin_unlock+0x160/0x200
[ 288.932809][ T7480] kobject_add_internal+0x631/0xd10
[ 288.932845][ T7480] kobject_init_and_add+0x12b/0x1a0
[ 288.932875][ T7480] ? __pfx_kobject_init_and_add+0x10/0x10
[ 288.932901][ T7480] ? __raw_spin_lock_init+0x45/0x100
[ 288.932928][ T7480] ? __init_swait_queue_head+0xa9/0x150
[ 288.932958][ T7480] gfs2_sys_fs_add+0x257/0x480
[ 288.932980][ T7480] ? is_dynamic_key+0x1ac/0x1c0
[ 288.933000][ T7480] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 288.933032][ T7480] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 288.933066][ T7480] gfs2_fill_super+0x141c/0x2220
[ 288.933101][ T7480] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.933119][ T7480] ? rt_spin_unlock+0x14f/0x200
[ 288.933147][ T7480] ? sb_set_blocksize+0x11b/0x210
[ 288.933170][ T7480] ? setup_bdev_super+0x4c1/0x5b0
[ 288.933199][ T7480] get_tree_bdev_flags+0x431/0x4f0
[ 288.933226][ T7480] ? __pfx_gfs2_fill_super+0x10/0x10
[ 288.933244][ T7480] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 288.933268][ T7480] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 288.933302][ T7480] gfs2_get_tree+0x51/0x1e0
[ 288.933325][ T7480] vfs_get_tree+0x92/0x2a0
[ 288.933353][ T7480] do_new_mount+0x341/0xd30
[ 288.933380][ T7480] ? __pfx_do_new_mount+0x10/0x10
[ 288.933402][ T7480] ? path_mount+0x3d4/0x10e0
[ 288.933425][ T7480] ? user_path_at+0xd4/0x160
[ 288.933453][ T7480] ? user_path_at+0xd4/0x160
[ 288.933478][ T7480] __se_sys_mount+0x31d/0x420
[ 288.933505][ T7480] ? __pfx___se_sys_mount+0x10/0x10
[ 288.933532][ T7480] ? __x64_sys_mount+0x20/0xc0
[ 288.933553][ T7480] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.933573][ T7480] do_syscall_64+0x15f/0xf80
[ 288.933594][ T7480] ? trace_irq_disable+0x3b/0x140
[ 288.933619][ T7480] ? clear_bhb_loop+0x40/0x90
[ 288.933648][ T7480] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 288.933663][ T7480] RIP: 0033:0x7fbd28b9b5ca
[ 288.933682][ T7480] 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
[ 288.933698][ T7480] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 288.933718][ T7480] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 288.933732][ T7480] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 288.933745][ T7480] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 288.933758][ T7480] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 288.933770][ T7480] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 288.933804][ T7480]
[ 288.937111][ T7480] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 288.937130][ T7480] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 289.336236][ T7479] loop5: detected capacity change from 0 to 32768
[ 289.394372][ T7479] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 289.394396][ T7479] CPU: 1 UID: 0 PID: 7479 Comm: syz.5.185 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 289.394418][ T7479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 289.394429][ T7479] Call Trace:
[ 289.394436][ T7479]
[ 289.394444][ T7479] dump_stack_lvl+0xe8/0x150
[ 289.394475][ T7479] sysfs_create_dir_ns+0x271/0x2a0
[ 289.394499][ T7479] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 289.394526][ T7479] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 289.394551][ T7479] ? rt_spin_unlock+0x160/0x200
[ 289.394586][ T7479] kobject_add_internal+0x631/0xd10
[ 289.394618][ T7479] kobject_init_and_add+0x12b/0x1a0
[ 289.394648][ T7479] ? __pfx_kobject_init_and_add+0x10/0x10
[ 289.394672][ T7479] ? __raw_spin_lock_init+0x45/0x100
[ 289.394697][ T7479] ? __init_swait_queue_head+0xa9/0x150
[ 289.394726][ T7479] gfs2_sys_fs_add+0x257/0x480
[ 289.394749][ T7479] ? is_dynamic_key+0x1ac/0x1c0
[ 289.394769][ T7479] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 289.394804][ T7479] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 289.394839][ T7479] gfs2_fill_super+0x141c/0x2220
[ 289.394874][ T7479] ? __pfx_gfs2_fill_super+0x10/0x10
[ 289.394892][ T7479] ? rt_spin_unlock+0x14f/0x200
[ 289.394931][ T7479] ? sb_set_blocksize+0x11b/0x210
[ 289.394953][ T7479] ? setup_bdev_super+0x4c1/0x5b0
[ 289.394983][ T7479] get_tree_bdev_flags+0x431/0x4f0
[ 289.395023][ T7479] ? __pfx_gfs2_fill_super+0x10/0x10
[ 289.395042][ T7479] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 289.395065][ T7479] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 289.395102][ T7479] gfs2_get_tree+0x51/0x1e0
[ 289.395124][ T7479] vfs_get_tree+0x92/0x2a0
[ 289.395156][ T7479] do_new_mount+0x341/0xd30
[ 289.395176][ T7479] ? apparmor_capable+0x126/0x170
[ 289.395203][ T7479] ? __pfx_do_new_mount+0x10/0x10
[ 289.395224][ T7479] ? ns_capable+0x89/0xe0
[ 289.395253][ T7479] ? user_path_at+0xd4/0x160
[ 289.395281][ T7479] ? user_path_at+0xd4/0x160
[ 289.395306][ T7479] __se_sys_mount+0x31d/0x420
[ 289.395334][ T7479] ? __pfx___se_sys_mount+0x10/0x10
[ 289.395362][ T7479] ? __x64_sys_mount+0x20/0xc0
[ 289.395383][ T7479] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 289.395404][ T7479] do_syscall_64+0x15f/0xf80
[ 289.395425][ T7479] ? trace_irq_disable+0x3b/0x140
[ 289.395450][ T7479] ? clear_bhb_loop+0x40/0x90
[ 289.395472][ T7479] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 289.395491][ T7479] RIP: 0033:0x7f523924b5ca
[ 289.395515][ T7479] 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
[ 289.395531][ T7479] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 289.395552][ T7479] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 289.395566][ T7479] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 289.395577][ T7479] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 289.395588][ T7479] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 289.395599][ T7479] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 289.395627][ T7479]
[ 289.398628][ T7479] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 289.398649][ T7479] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 289.886278][ T7110] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 290.067138][ T6792] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 290.917285][ T7488] loop2: detected capacity change from 0 to 32768
[ 290.934924][ T7488] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 290.934952][ T7488] CPU: 0 UID: 0 PID: 7488 Comm: syz.2.187 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 290.934973][ T7488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 290.934984][ T7488] Call Trace:
[ 290.934992][ T7488]
[ 290.935000][ T7488] dump_stack_lvl+0xe8/0x150
[ 290.935034][ T7488] sysfs_create_dir_ns+0x271/0x2a0
[ 290.935058][ T7488] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 290.935087][ T7488] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 290.935111][ T7488] ? rt_spin_unlock+0x160/0x200
[ 290.935136][ T7488] kobject_add_internal+0x631/0xd10
[ 290.935169][ T7488] kobject_init_and_add+0x12b/0x1a0
[ 290.935198][ T7488] ? __pfx_kobject_init_and_add+0x10/0x10
[ 290.935228][ T7488] ? __raw_spin_lock_init+0x45/0x100
[ 290.935256][ T7488] ? __init_swait_queue_head+0xa9/0x150
[ 290.935284][ T7488] gfs2_sys_fs_add+0x257/0x480
[ 290.935309][ T7488] ? is_dynamic_key+0x1ac/0x1c0
[ 290.935327][ T7488] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 290.935356][ T7488] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 290.935389][ T7488] gfs2_fill_super+0x141c/0x2220
[ 290.935421][ T7488] ? __pfx_gfs2_fill_super+0x10/0x10
[ 290.935445][ T7488] ? rt_spin_unlock+0x14f/0x200
[ 290.935471][ T7488] ? sb_set_blocksize+0x11b/0x210
[ 290.935491][ T7488] ? setup_bdev_super+0x4c1/0x5b0
[ 290.935516][ T7488] get_tree_bdev_flags+0x431/0x4f0
[ 290.935540][ T7488] ? __pfx_gfs2_fill_super+0x10/0x10
[ 290.935559][ T7488] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 290.935580][ T7488] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 290.935613][ T7488] gfs2_get_tree+0x51/0x1e0
[ 290.935633][ T7488] vfs_get_tree+0x92/0x2a0
[ 290.935658][ T7488] do_new_mount+0x341/0xd30
[ 290.935678][ T7488] ? apparmor_capable+0x126/0x170
[ 290.935702][ T7488] ? __pfx_do_new_mount+0x10/0x10
[ 290.935722][ T7488] ? ns_capable+0x89/0xe0
[ 290.935747][ T7488] ? user_path_at+0xd4/0x160
[ 290.935771][ T7488] ? user_path_at+0xd4/0x160
[ 290.935793][ T7488] __se_sys_mount+0x31d/0x420
[ 290.935816][ T7488] ? __pfx___se_sys_mount+0x10/0x10
[ 290.935837][ T7488] ? __x64_sys_mount+0x20/0xc0
[ 290.935854][ T7488] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 290.935870][ T7488] do_syscall_64+0x15f/0xf80
[ 290.935886][ T7488] ? trace_irq_disable+0x3b/0x140
[ 290.935906][ T7488] ? clear_bhb_loop+0x40/0x90
[ 290.935923][ T7488] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 290.935937][ T7488] RIP: 0033:0x7ff71f8cb5ca
[ 290.935953][ T7488] 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
[ 290.935966][ T7488] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 290.935983][ T7488] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 290.935994][ T7488] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 290.936004][ T7488] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 290.936014][ T7488] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 290.936024][ T7488] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 290.936046][ T7488]
[ 290.936075][ T7488] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 290.936088][ T7488] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 291.407690][ T7494] loop0: detected capacity change from 0 to 32768
[ 291.423630][ T6798] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 291.454731][ T7490] loop4: detected capacity change from 0 to 32768
[ 291.484574][ T7494] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 291.484605][ T7494] CPU: 1 UID: 0 PID: 7494 Comm: syz.0.189 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
2026/05/08 01:07:36 executed programs: 184
[ 291.484627][ T7494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 291.484638][ T7494] Call Trace:
[ 291.484646][ T7494]
[ 291.484654][ T7494] dump_stack_lvl+0xe8/0x150
[ 291.484681][ T7494] sysfs_create_dir_ns+0x271/0x2a0
[ 291.484704][ T7494] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 291.484732][ T7494] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 291.484768][ T7494] ? rt_spin_unlock+0x160/0x200
[ 291.484802][ T7494] kobject_add_internal+0x631/0xd10
[ 291.484835][ T7494] kobject_init_and_add+0x12b/0x1a0
[ 291.484868][ T7494] ? __pfx_kobject_init_and_add+0x10/0x10
[ 291.484893][ T7494] ? __raw_spin_lock_init+0x45/0x100
[ 291.484919][ T7494] ? __init_swait_queue_head+0xa9/0x150
[ 291.484948][ T7494] gfs2_sys_fs_add+0x257/0x480
[ 291.484972][ T7494] ? is_dynamic_key+0x1ac/0x1c0
[ 291.484992][ T7494] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 291.485026][ T7494] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 291.485061][ T7494] gfs2_fill_super+0x141c/0x2220
[ 291.485096][ T7494] ? __pfx_gfs2_fill_super+0x10/0x10
[ 291.485115][ T7494] ? rt_spin_unlock+0x14f/0x200
[ 291.485158][ T7494] ? sb_set_blocksize+0x11b/0x210
[ 291.485180][ T7494] ? setup_bdev_super+0x4c1/0x5b0
[ 291.485210][ T7494] get_tree_bdev_flags+0x431/0x4f0
[ 291.485237][ T7494] ? __pfx_gfs2_fill_super+0x10/0x10
[ 291.485256][ T7494] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 291.485279][ T7494] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 291.485314][ T7494] gfs2_get_tree+0x51/0x1e0
[ 291.485336][ T7494] vfs_get_tree+0x92/0x2a0
[ 291.485364][ T7494] do_new_mount+0x341/0xd30
[ 291.485384][ T7494] ? apparmor_capable+0x126/0x170
[ 291.485474][ T7494] ? __pfx_do_new_mount+0x10/0x10
[ 291.485497][ T7494] ? ns_capable+0x89/0xe0
[ 291.485525][ T7494] ? user_path_at+0xd4/0x160
[ 291.485553][ T7494] ? user_path_at+0xd4/0x160
[ 291.485578][ T7494] __se_sys_mount+0x31d/0x420
[ 291.485606][ T7494] ? __pfx___se_sys_mount+0x10/0x10
[ 291.485634][ T7494] ? __x64_sys_mount+0x20/0xc0
[ 291.485653][ T7494] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 291.485674][ T7494] do_syscall_64+0x15f/0xf80
[ 291.485695][ T7494] ? trace_irq_disable+0x3b/0x140
[ 291.485720][ T7494] ? clear_bhb_loop+0x40/0x90
[ 291.485743][ T7494] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 291.485761][ T7494] RIP: 0033:0x7fbd28b9b5ca
[ 291.485780][ T7494] 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
[ 291.485797][ T7494] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 291.485817][ T7494] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 291.485832][ T7494] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 291.485846][ T7494] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 291.485858][ T7494] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 291.485868][ T7494] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 291.485894][ T7494]
[ 291.515638][ T7490] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 291.515662][ T7490] CPU: 0 UID: 0 PID: 7490 Comm: syz.4.188 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 291.515683][ T7490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 291.515694][ T7490] Call Trace:
[ 291.515702][ T7490]
[ 291.515710][ T7490] dump_stack_lvl+0xe8/0x150
[ 291.515745][ T7490] sysfs_create_dir_ns+0x271/0x2a0
[ 291.515768][ T7490] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 291.515796][ T7490] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 291.515821][ T7490] ? rt_spin_unlock+0x160/0x200
[ 291.515847][ T7490] kobject_add_internal+0x631/0xd10
[ 291.515879][ T7490] kobject_init_and_add+0x12b/0x1a0
[ 291.515908][ T7490] ? __pfx_kobject_init_and_add+0x10/0x10
[ 291.515933][ T7490] ? __raw_spin_lock_init+0x45/0x100
[ 291.515960][ T7490] ? __init_swait_queue_head+0xa9/0x150
[ 291.515988][ T7490] gfs2_sys_fs_add+0x257/0x480
[ 291.516011][ T7490] ? is_dynamic_key+0x1ac/0x1c0
[ 291.516030][ T7490] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 291.516060][ T7490] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 291.516092][ T7490] gfs2_fill_super+0x141c/0x2220
[ 291.516126][ T7490] ? __pfx_gfs2_fill_super+0x10/0x10
[ 291.516142][ T7490] ? rt_spin_unlock+0x14f/0x200
[ 291.516170][ T7490] ? sb_set_blocksize+0x11b/0x210
[ 291.516191][ T7490] ? setup_bdev_super+0x4c1/0x5b0
[ 291.516219][ T7490] get_tree_bdev_flags+0x431/0x4f0
[ 291.516244][ T7490] ? __pfx_gfs2_fill_super+0x10/0x10
[ 291.516262][ T7490] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 291.516285][ T7490] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 291.516319][ T7490] gfs2_get_tree+0x51/0x1e0
[ 291.516341][ T7490] vfs_get_tree+0x92/0x2a0
[ 291.516367][ T7490] do_new_mount+0x341/0xd30
[ 291.516387][ T7490] ? apparmor_capable+0x126/0x170
[ 291.516413][ T7490] ? __pfx_do_new_mount+0x10/0x10
[ 291.516433][ T7490] ? ns_capable+0x89/0xe0
[ 291.516459][ T7490] ? user_path_at+0xd4/0x160
[ 291.516485][ T7490] ? user_path_at+0xd4/0x160
[ 291.516510][ T7490] __se_sys_mount+0x31d/0x420
[ 291.516536][ T7490] ? __pfx___se_sys_mount+0x10/0x10
[ 291.516563][ T7490] ? __x64_sys_mount+0x20/0xc0
[ 291.516582][ T7490] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 291.516602][ T7490] do_syscall_64+0x15f/0xf80
[ 291.516622][ T7490] ? trace_irq_disable+0x3b/0x140
[ 291.516647][ T7490] ? clear_bhb_loop+0x40/0x90
[ 291.516668][ T7490] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 291.516686][ T7490] RIP: 0033:0x7fd5f95bb5ca
[ 291.516703][ T7490] 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
[ 291.516719][ T7490] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 291.516745][ T7490] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 291.516758][ T7490] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 291.516771][ T7490] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 291.516784][ T7490] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 291.516796][ T7490] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 291.516829][ T7490]
[ 291.516864][ T7490] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 291.516879][ T7490] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 291.528143][ T7494] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 291.528162][ T7494] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 291.596021][ T7490] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 292.212005][ T6799] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 292.215974][ T7498] loop5: detected capacity change from 0 to 32768
[ 292.359683][ T7498] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 292.359702][ T7498] CPU: 0 UID: 0 PID: 7498 Comm: syz.5.190 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 292.359719][ T7498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 292.359726][ T7498] Call Trace:
[ 292.359732][ T7498]
[ 292.359740][ T7498] dump_stack_lvl+0xe8/0x150
[ 292.359767][ T7498] sysfs_create_dir_ns+0x271/0x2a0
[ 292.359787][ T7498] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 292.359812][ T7498] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 292.359829][ T7498] ? rt_spin_unlock+0x160/0x200
[ 292.359851][ T7498] kobject_add_internal+0x631/0xd10
[ 292.359876][ T7498] kobject_init_and_add+0x12b/0x1a0
[ 292.359899][ T7498] ? __pfx_kobject_init_and_add+0x10/0x10
[ 292.359919][ T7498] ? __raw_spin_lock_init+0x45/0x100
[ 292.359939][ T7498] ? __init_swait_queue_head+0xa9/0x150
[ 292.359962][ T7498] gfs2_sys_fs_add+0x257/0x480
[ 292.359979][ T7498] ? is_dynamic_key+0x1ac/0x1c0
[ 292.359994][ T7498] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 292.360018][ T7498] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 292.360044][ T7498] gfs2_fill_super+0x141c/0x2220
[ 292.360071][ T7498] ? __pfx_gfs2_fill_super+0x10/0x10
[ 292.360084][ T7498] ? rt_spin_unlock+0x14f/0x200
[ 292.360106][ T7498] ? sb_set_blocksize+0x11b/0x210
[ 292.360123][ T7498] ? setup_bdev_super+0x4c1/0x5b0
[ 292.360145][ T7498] get_tree_bdev_flags+0x431/0x4f0
[ 292.360165][ T7498] ? __pfx_gfs2_fill_super+0x10/0x10
[ 292.360180][ T7498] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 292.360197][ T7498] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 292.360224][ T7498] gfs2_get_tree+0x51/0x1e0
[ 292.360242][ T7498] vfs_get_tree+0x92/0x2a0
[ 292.360263][ T7498] do_new_mount+0x341/0xd30
[ 292.360279][ T7498] ? apparmor_capable+0x126/0x170
[ 292.360299][ T7498] ? __pfx_do_new_mount+0x10/0x10
[ 292.360315][ T7498] ? ns_capable+0x89/0xe0
[ 292.360339][ T7498] ? user_path_at+0xd4/0x160
[ 292.360360][ T7498] ? user_path_at+0xd4/0x160
[ 292.360378][ T7498] __se_sys_mount+0x31d/0x420
[ 292.360399][ T7498] ? __pfx___se_sys_mount+0x10/0x10
[ 292.360419][ T7498] ? __x64_sys_mount+0x20/0xc0
[ 292.360434][ T7498] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 292.360449][ T7498] do_syscall_64+0x15f/0xf80
[ 292.360464][ T7498] ? trace_irq_disable+0x3b/0x140
[ 292.360483][ T7498] ? clear_bhb_loop+0x40/0x90
[ 292.360500][ T7498] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 292.360514][ T7498] RIP: 0033:0x7f523924b5ca
[ 292.360528][ T7498] 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
[ 292.360541][ T7498] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 292.360557][ T7498] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 292.360576][ T7498] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 292.360586][ T7498] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 292.360596][ T7498] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 292.360605][ T7498] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 292.360628][ T7498]
[ 292.360655][ T7498] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 292.360667][ T7498] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 293.105273][ T6792] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 294.004346][ T7506] loop2: detected capacity change from 0 to 32768
[ 294.055964][ T7506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 294.055986][ T7506] CPU: 1 UID: 0 PID: 7506 Comm: syz.2.191 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 294.056008][ T7506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 294.056019][ T7506] Call Trace:
[ 294.056027][ T7506]
[ 294.056036][ T7506] dump_stack_lvl+0xe8/0x150
[ 294.056062][ T7506] sysfs_create_dir_ns+0x271/0x2a0
[ 294.056084][ T7506] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 294.056111][ T7506] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 294.056135][ T7506] ? rt_spin_unlock+0x160/0x200
[ 294.056160][ T7506] kobject_add_internal+0x631/0xd10
[ 294.056192][ T7506] kobject_init_and_add+0x12b/0x1a0
[ 294.056231][ T7506] ? __pfx_kobject_init_and_add+0x10/0x10
[ 294.056257][ T7506] ? __raw_spin_lock_init+0x45/0x100
[ 294.056284][ T7506] ? __init_swait_queue_head+0xa9/0x150
[ 294.056315][ T7506] gfs2_sys_fs_add+0x257/0x480
[ 294.056338][ T7506] ? is_dynamic_key+0x1ac/0x1c0
[ 294.056367][ T7506] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 294.056399][ T7506] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 294.056432][ T7506] gfs2_fill_super+0x141c/0x2220
[ 294.056467][ T7506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.056485][ T7506] ? rt_spin_unlock+0x14f/0x200
[ 294.056514][ T7506] ? sb_set_blocksize+0x11b/0x210
[ 294.056535][ T7506] ? setup_bdev_super+0x4c1/0x5b0
[ 294.056564][ T7506] get_tree_bdev_flags+0x431/0x4f0
[ 294.056590][ T7506] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.056609][ T7506] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 294.056632][ T7506] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 294.056667][ T7506] gfs2_get_tree+0x51/0x1e0
[ 294.056690][ T7506] vfs_get_tree+0x92/0x2a0
[ 294.056717][ T7506] do_new_mount+0x341/0xd30
[ 294.056737][ T7506] ? apparmor_capable+0x126/0x170
[ 294.056763][ T7506] ? __pfx_do_new_mount+0x10/0x10
[ 294.056784][ T7506] ? ns_capable+0x89/0xe0
[ 294.056812][ T7506] ? user_path_at+0xd4/0x160
[ 294.056838][ T7506] ? user_path_at+0xd4/0x160
[ 294.056863][ T7506] __se_sys_mount+0x31d/0x420
[ 294.056888][ T7506] ? __pfx___se_sys_mount+0x10/0x10
[ 294.056916][ T7506] ? __x64_sys_mount+0x20/0xc0
[ 294.056936][ T7506] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.056957][ T7506] do_syscall_64+0x15f/0xf80
[ 294.056977][ T7506] ? trace_irq_disable+0x3b/0x140
[ 294.057003][ T7506] ? clear_bhb_loop+0x40/0x90
[ 294.057026][ T7506] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.057044][ T7506] RIP: 0033:0x7ff71f8cb5ca
[ 294.057062][ T7506] 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
[ 294.057078][ T7506] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 294.057099][ T7506] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 294.057113][ T7506] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 294.057127][ T7506] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 294.057140][ T7506] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 294.057152][ T7506] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 294.057183][ T7506]
[ 294.057209][ T7506] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 294.058792][ T7506] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 294.407480][ T7512] loop4: detected capacity change from 0 to 32768
[ 294.418517][ T7512] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 294.418538][ T7512] CPU: 1 UID: 0 PID: 7512 Comm: syz.4.194 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 294.418559][ T7512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 294.418570][ T7512] Call Trace:
[ 294.418577][ T7512]
[ 294.418585][ T7512] dump_stack_lvl+0xe8/0x150
[ 294.418613][ T7512] sysfs_create_dir_ns+0x271/0x2a0
[ 294.418637][ T7512] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 294.418665][ T7512] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 294.418690][ T7512] ? rt_spin_unlock+0x160/0x200
[ 294.418718][ T7512] kobject_add_internal+0x631/0xd10
[ 294.418750][ T7512] kobject_init_and_add+0x12b/0x1a0
[ 294.418780][ T7512] ? __pfx_kobject_init_and_add+0x10/0x10
[ 294.418805][ T7512] ? __raw_spin_lock_init+0x45/0x100
[ 294.418832][ T7512] ? __init_swait_queue_head+0xa9/0x150
[ 294.418863][ T7512] gfs2_sys_fs_add+0x257/0x480
[ 294.418887][ T7512] ? is_dynamic_key+0x1ac/0x1c0
[ 294.418906][ T7512] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 294.418939][ T7512] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 294.418977][ T7512] gfs2_fill_super+0x141c/0x2220
[ 294.419013][ T7512] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.419030][ T7512] ? rt_spin_unlock+0x14f/0x200
[ 294.419059][ T7512] ? sb_set_blocksize+0x11b/0x210
[ 294.419080][ T7512] ? setup_bdev_super+0x4c1/0x5b0
[ 294.419109][ T7512] get_tree_bdev_flags+0x431/0x4f0
[ 294.419136][ T7512] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.419155][ T7512] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 294.419178][ T7512] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 294.419214][ T7512] gfs2_get_tree+0x51/0x1e0
[ 294.419233][ T7512] vfs_get_tree+0x92/0x2a0
[ 294.419254][ T7512] do_new_mount+0x341/0xd30
[ 294.419271][ T7512] ? apparmor_capable+0x126/0x170
[ 294.419298][ T7512] ? __pfx_do_new_mount+0x10/0x10
[ 294.419319][ T7512] ? ns_capable+0x89/0xe0
[ 294.419347][ T7512] ? user_path_at+0xd4/0x160
[ 294.419375][ T7512] ? user_path_at+0xd4/0x160
[ 294.419400][ T7512] __se_sys_mount+0x31d/0x420
[ 294.419428][ T7512] ? __pfx___se_sys_mount+0x10/0x10
[ 294.419456][ T7512] ? __x64_sys_mount+0x20/0xc0
[ 294.419484][ T7512] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.419504][ T7512] do_syscall_64+0x15f/0xf80
[ 294.419525][ T7512] ? trace_irq_disable+0x3b/0x140
[ 294.419550][ T7512] ? clear_bhb_loop+0x40/0x90
[ 294.419571][ T7512] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.419585][ T7512] RIP: 0033:0x7fd5f95bb5ca
[ 294.419602][ T7512] 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
[ 294.419617][ T7512] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 294.419636][ T7512] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 294.419649][ T7512] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 294.419660][ T7512] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 294.419671][ T7512] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 294.419681][ T7512] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 294.419708][ T7512]
[ 294.459885][ T7512] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 294.459906][ T7512] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 294.676645][ T7508] loop0: detected capacity change from 0 to 32768
[ 294.687325][ T7514] loop3: detected capacity change from 0 to 32768
[ 294.759290][ T7508] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 294.759313][ T7508] CPU: 0 UID: 0 PID: 7508 Comm: syz.0.192 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 294.759334][ T7508] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 294.759344][ T7508] Call Trace:
[ 294.759352][ T7508]
[ 294.759360][ T7508] dump_stack_lvl+0xe8/0x150
[ 294.759395][ T7508] sysfs_create_dir_ns+0x271/0x2a0
[ 294.759417][ T7508] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 294.759444][ T7508] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 294.759469][ T7508] ? rt_spin_unlock+0x160/0x200
[ 294.759496][ T7508] kobject_add_internal+0x631/0xd10
[ 294.759525][ T7508] kobject_init_and_add+0x12b/0x1a0
[ 294.759554][ T7508] ? __pfx_kobject_init_and_add+0x10/0x10
[ 294.759581][ T7508] ? __raw_spin_lock_init+0x45/0x100
[ 294.759606][ T7508] ? __init_swait_queue_head+0xa9/0x150
[ 294.759633][ T7508] gfs2_sys_fs_add+0x257/0x480
[ 294.759655][ T7508] ? is_dynamic_key+0x1ac/0x1c0
[ 294.759672][ T7508] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 294.759703][ T7508] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 294.759734][ T7508] gfs2_fill_super+0x141c/0x2220
[ 294.759769][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.759786][ T7508] ? rt_spin_unlock+0x14f/0x200
[ 294.759814][ T7508] ? sb_set_blocksize+0x11b/0x210
[ 294.759834][ T7508] ? setup_bdev_super+0x4c1/0x5b0
[ 294.759863][ T7508] get_tree_bdev_flags+0x431/0x4f0
[ 294.759888][ T7508] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.759907][ T7508] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 294.759930][ T7508] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 294.759965][ T7508] gfs2_get_tree+0x51/0x1e0
[ 294.759986][ T7508] vfs_get_tree+0x92/0x2a0
[ 294.760013][ T7508] do_new_mount+0x341/0xd30
[ 294.760032][ T7508] ? apparmor_capable+0x126/0x170
[ 294.760057][ T7508] ? __pfx_do_new_mount+0x10/0x10
[ 294.760077][ T7508] ? ns_capable+0x89/0xe0
[ 294.760104][ T7508] ? user_path_at+0xd4/0x160
[ 294.760130][ T7508] ? user_path_at+0xd4/0x160
[ 294.760154][ T7508] __se_sys_mount+0x31d/0x420
[ 294.760180][ T7508] ? __pfx___se_sys_mount+0x10/0x10
[ 294.760207][ T7508] ? __x64_sys_mount+0x20/0xc0
[ 294.760226][ T7508] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.760246][ T7508] do_syscall_64+0x15f/0xf80
[ 294.760266][ T7508] ? trace_irq_disable+0x3b/0x140
[ 294.760290][ T7508] ? clear_bhb_loop+0x40/0x90
[ 294.760312][ T7508] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.760330][ T7508] RIP: 0033:0x7fbd28b9b5ca
[ 294.760348][ T7508] 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
[ 294.760363][ T7508] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 294.760382][ T7508] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 294.760403][ T7508] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 294.760416][ T7508] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 294.760429][ T7508] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 294.760441][ T7508] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 294.760470][ T7508]
[ 294.767071][ T7508] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 294.767092][ T7508] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 294.826805][ T7514] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 294.826826][ T7514] CPU: 0 UID: 0 PID: 7514 Comm: syz.3.193 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 294.826846][ T7514] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 294.826857][ T7514] Call Trace:
[ 294.826865][ T7514]
[ 294.826872][ T7514] dump_stack_lvl+0xe8/0x150
[ 294.826901][ T7514] sysfs_create_dir_ns+0x271/0x2a0
[ 294.826924][ T7514] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 294.826951][ T7514] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 294.826977][ T7514] ? rt_spin_unlock+0x160/0x200
[ 294.827003][ T7514] kobject_add_internal+0x631/0xd10
[ 294.827035][ T7514] kobject_init_and_add+0x12b/0x1a0
[ 294.827064][ T7514] ? __pfx_kobject_init_and_add+0x10/0x10
[ 294.827090][ T7514] ? __raw_spin_lock_init+0x45/0x100
[ 294.827116][ T7514] ? __init_swait_queue_head+0xa9/0x150
[ 294.827143][ T7514] gfs2_sys_fs_add+0x257/0x480
[ 294.827166][ T7514] ? is_dynamic_key+0x1ac/0x1c0
[ 294.827185][ T7514] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 294.827216][ T7514] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 294.827249][ T7514] gfs2_fill_super+0x141c/0x2220
[ 294.827282][ T7514] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.827300][ T7514] ? rt_spin_unlock+0x14f/0x200
[ 294.827328][ T7514] ? sb_set_blocksize+0x11b/0x210
[ 294.827349][ T7514] ? setup_bdev_super+0x4c1/0x5b0
[ 294.827377][ T7514] get_tree_bdev_flags+0x431/0x4f0
[ 294.827409][ T7514] ? __pfx_gfs2_fill_super+0x10/0x10
[ 294.827427][ T7514] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 294.827450][ T7514] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 294.827486][ T7514] gfs2_get_tree+0x51/0x1e0
[ 294.827507][ T7514] vfs_get_tree+0x92/0x2a0
[ 294.827534][ T7514] do_new_mount+0x341/0xd30
[ 294.827553][ T7514] ? apparmor_capable+0x126/0x170
[ 294.827579][ T7514] ? __pfx_do_new_mount+0x10/0x10
[ 294.827600][ T7514] ? ns_capable+0x89/0xe0
[ 294.827627][ T7514] ? user_path_at+0xd4/0x160
[ 294.827653][ T7514] ? user_path_at+0xd4/0x160
[ 294.827677][ T7514] __se_sys_mount+0x31d/0x420
[ 294.827703][ T7514] ? __pfx___se_sys_mount+0x10/0x10
[ 294.827731][ T7514] ? __x64_sys_mount+0x20/0xc0
[ 294.827751][ T7514] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.827770][ T7514] do_syscall_64+0x15f/0xf80
[ 294.827789][ T7514] ? trace_irq_disable+0x3b/0x140
[ 294.827814][ T7514] ? clear_bhb_loop+0x40/0x90
[ 294.827836][ T7514] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 294.827854][ T7514] RIP: 0033:0x7f4354b3b5ca
[ 294.827871][ T7514] 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
[ 294.827886][ T7514] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 294.827907][ T7514] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 294.827920][ T7514] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 294.827933][ T7514] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 294.827946][ T7514] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 294.827957][ T7514] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 294.827986][ T7514]
[ 294.828011][ T7514] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 294.828025][ T7514] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 294.886051][ T6798] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 295.073732][ T7516] loop5: detected capacity change from 0 to 32768
[ 295.269979][ T7516] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 295.270001][ T7516] CPU: 0 UID: 0 PID: 7516 Comm: syz.5.195 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 295.270022][ T7516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 295.270033][ T7516] Call Trace:
[ 295.270040][ T7516]
[ 295.270047][ T7516] dump_stack_lvl+0xe8/0x150
[ 295.270074][ T7516] sysfs_create_dir_ns+0x271/0x2a0
[ 295.270096][ T7516] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 295.270123][ T7516] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 295.270148][ T7516] ? rt_spin_unlock+0x160/0x200
[ 295.270174][ T7516] kobject_add_internal+0x631/0xd10
[ 295.270205][ T7516] kobject_init_and_add+0x12b/0x1a0
[ 295.270234][ T7516] ? __pfx_kobject_init_and_add+0x10/0x10
[ 295.270260][ T7516] ? __raw_spin_lock_init+0x45/0x100
[ 295.270285][ T7516] ? __init_swait_queue_head+0xa9/0x150
[ 295.270313][ T7516] gfs2_sys_fs_add+0x257/0x480
[ 295.270335][ T7516] ? is_dynamic_key+0x1ac/0x1c0
[ 295.270361][ T7516] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 295.270392][ T7516] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 295.270425][ T7516] gfs2_fill_super+0x141c/0x2220
[ 295.270458][ T7516] ? __pfx_gfs2_fill_super+0x10/0x10
[ 295.270475][ T7516] ? rt_spin_unlock+0x14f/0x200
[ 295.270507][ T7516] ? sb_set_blocksize+0x11b/0x210
[ 295.270527][ T7516] ? setup_bdev_super+0x4c1/0x5b0
[ 295.270556][ T7516] get_tree_bdev_flags+0x431/0x4f0
[ 295.270581][ T7516] ? __pfx_gfs2_fill_super+0x10/0x10
[ 295.270599][ T7516] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 295.270621][ T7516] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 295.270656][ T7516] gfs2_get_tree+0x51/0x1e0
[ 295.270678][ T7516] vfs_get_tree+0x92/0x2a0
[ 295.270705][ T7516] do_new_mount+0x341/0xd30
[ 295.270724][ T7516] ? apparmor_capable+0x126/0x170
[ 295.270750][ T7516] ? __pfx_do_new_mount+0x10/0x10
[ 295.270771][ T7516] ? ns_capable+0x89/0xe0
[ 295.270798][ T7516] ? user_path_at+0xd4/0x160
[ 295.270823][ T7516] ? user_path_at+0xd4/0x160
[ 295.270848][ T7516] __se_sys_mount+0x31d/0x420
[ 295.270874][ T7516] ? __pfx___se_sys_mount+0x10/0x10
[ 295.270900][ T7516] ? __x64_sys_mount+0x20/0xc0
[ 295.270921][ T7516] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 295.270940][ T7516] do_syscall_64+0x15f/0xf80
[ 295.270960][ T7516] ? trace_irq_disable+0x3b/0x140
[ 295.270985][ T7516] ? clear_bhb_loop+0x40/0x90
[ 295.271005][ T7516] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 295.271023][ T7516] RIP: 0033:0x7f523924b5ca
[ 295.271041][ T7516] 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
[ 295.271056][ T7516] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 295.271076][ T7516] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 295.271089][ T7516] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 295.271101][ T7516] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 295.271113][ T7516] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 295.271125][ T7516] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 295.271154][ T7516]
[ 295.271189][ T7516] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 295.271204][ T7516] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 295.598710][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 295.801364][ T7110] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 295.988115][ T6792] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 296.152741][ T6812] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 297.226779][ T7536] loop5: detected capacity change from 0 to 32768
[ 297.244440][ T7536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 297.244464][ T7536] CPU: 0 UID: 0 PID: 7536 Comm: syz.5.200 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 297.244485][ T7536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 297.244496][ T7536] Call Trace:
[ 297.244504][ T7536]
[ 297.244512][ T7536] dump_stack_lvl+0xe8/0x150
[ 297.244541][ T7536] sysfs_create_dir_ns+0x271/0x2a0
[ 297.244565][ T7536] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 297.244593][ T7536] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 297.244618][ T7536] ? rt_spin_unlock+0x160/0x200
[ 297.244646][ T7536] kobject_add_internal+0x631/0xd10
[ 297.244675][ T7536] kobject_init_and_add+0x12b/0x1a0
[ 297.244700][ T7536] ? __pfx_kobject_init_and_add+0x10/0x10
[ 297.244724][ T7536] ? __raw_spin_lock_init+0x45/0x100
[ 297.244751][ T7536] ? __init_swait_queue_head+0xa9/0x150
[ 297.244780][ T7536] gfs2_sys_fs_add+0x257/0x480
[ 297.244802][ T7536] ? is_dynamic_key+0x1ac/0x1c0
[ 297.244820][ T7536] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 297.244850][ T7536] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 297.244884][ T7536] gfs2_fill_super+0x141c/0x2220
[ 297.244926][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10
[ 297.244944][ T7536] ? rt_spin_unlock+0x14f/0x200
[ 297.244973][ T7536] ? sb_set_blocksize+0x11b/0x210
[ 297.244994][ T7536] ? setup_bdev_super+0x4c1/0x5b0
[ 297.245024][ T7536] get_tree_bdev_flags+0x431/0x4f0
[ 297.245049][ T7536] ? __pfx_gfs2_fill_super+0x10/0x10
[ 297.245068][ T7536] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 297.245092][ T7536] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 297.245128][ T7536] gfs2_get_tree+0x51/0x1e0
[ 297.245151][ T7536] vfs_get_tree+0x92/0x2a0
[ 297.245178][ T7536] do_new_mount+0x341/0xd30
[ 297.245194][ T7536] ? apparmor_capable+0x126/0x170
[ 297.245221][ T7536] ? __pfx_do_new_mount+0x10/0x10
[ 297.245242][ T7536] ? ns_capable+0x89/0xe0
[ 297.245270][ T7536] ? user_path_at+0xd4/0x160
[ 297.245296][ T7536] ? user_path_at+0xd4/0x160
[ 297.245321][ T7536] __se_sys_mount+0x31d/0x420
[ 297.245348][ T7536] ? __pfx___se_sys_mount+0x10/0x10
[ 297.245372][ T7536] ? __x64_sys_mount+0x20/0xc0
[ 297.245392][ T7536] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 297.245411][ T7536] do_syscall_64+0x15f/0xf80
[ 297.245432][ T7536] ? clear_bhb_loop+0x40/0x90
[ 297.245462][ T7536] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 297.245479][ T7536] RIP: 0033:0x7f523924b5ca
[ 297.245497][ T7536] 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
[ 297.245511][ T7536] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 297.245530][ T7536] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 297.245542][ T7536] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 297.245555][ T7536] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 297.245568][ T7536] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 297.245581][ T7536] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 297.245610][ T7536]
[ 297.245648][ T7536] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 297.245662][ T7536] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/05/08 01:07:42 executed programs: 194
[ 297.799947][ T7528] loop4: detected capacity change from 0 to 32768
[ 297.827490][ T7528] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 297.827512][ T7528] CPU: 1 UID: 0 PID: 7528 Comm: syz.4.197 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 297.827533][ T7528] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 297.827543][ T7528] Call Trace:
[ 297.827551][ T7528]
[ 297.827559][ T7528] dump_stack_lvl+0xe8/0x150
[ 297.827588][ T7528] sysfs_create_dir_ns+0x271/0x2a0
[ 297.827612][ T7528] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 297.827640][ T7528] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 297.827666][ T7528] ? rt_spin_unlock+0x160/0x200
[ 297.827693][ T7528] kobject_add_internal+0x631/0xd10
[ 297.827726][ T7528] kobject_init_and_add+0x12b/0x1a0
[ 297.827757][ T7528] ? __pfx_kobject_init_and_add+0x10/0x10
[ 297.827784][ T7528] ? __raw_spin_lock_init+0x45/0x100
[ 297.827811][ T7528] ? __init_swait_queue_head+0xa9/0x150
[ 297.827841][ T7528] gfs2_sys_fs_add+0x257/0x480
[ 297.827863][ T7528] ? is_dynamic_key+0x1ac/0x1c0
[ 297.827883][ T7528] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 297.827914][ T7528] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 297.827952][ T7528] gfs2_fill_super+0x141c/0x2220
[ 297.827988][ T7528] ? __pfx_gfs2_fill_super+0x10/0x10
[ 297.828005][ T7528] ? rt_spin_unlock+0x14f/0x200
[ 297.828034][ T7528] ? sb_set_blocksize+0x11b/0x210
[ 297.828055][ T7528] ? setup_bdev_super+0x4c1/0x5b0
[ 297.828085][ T7528] get_tree_bdev_flags+0x431/0x4f0
[ 297.828118][ T7528] ? __pfx_gfs2_fill_super+0x10/0x10
[ 297.828138][ T7528] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 297.828162][ T7528] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 297.828198][ T7528] gfs2_get_tree+0x51/0x1e0
[ 297.828221][ T7528] vfs_get_tree+0x92/0x2a0
[ 297.828249][ T7528] do_new_mount+0x341/0xd30
[ 297.828269][ T7528] ? apparmor_capable+0x126/0x170
[ 297.828295][ T7528] ? __pfx_do_new_mount+0x10/0x10
[ 297.828316][ T7528] ? ns_capable+0x89/0xe0
[ 297.828344][ T7528] ? user_path_at+0xd4/0x160
[ 297.828371][ T7528] ? user_path_at+0xd4/0x160
[ 297.828395][ T7528] __se_sys_mount+0x31d/0x420
[ 297.828422][ T7528] ? __pfx___se_sys_mount+0x10/0x10
[ 297.828450][ T7528] ? __x64_sys_mount+0x20/0xc0
[ 297.828471][ T7528] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 297.828492][ T7528] do_syscall_64+0x15f/0xf80
[ 297.828513][ T7528] ? trace_irq_disable+0x3b/0x140
[ 297.828540][ T7528] ? clear_bhb_loop+0x40/0x90
[ 297.828562][ T7528] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 297.828580][ T7528] RIP: 0033:0x7fd5f95bb5ca
[ 297.828599][ T7528] 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
[ 297.828615][ T7528] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 297.828635][ T7528] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 297.828649][ T7528] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 297.828662][ T7528] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 297.828675][ T7528] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 297.828687][ T7528] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 297.828718][ T7528]
[ 297.871371][ T7528] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 297.871393][ T7528] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 297.987624][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 298.427679][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 299.426455][ T7544] loop5: detected capacity change from 0 to 32768
[ 299.473026][ T7544] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 299.473063][ T7544] CPU: 1 UID: 0 PID: 7544 Comm: syz.5.201 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 299.473086][ T7544] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 299.473100][ T7544] Call Trace:
[ 299.473108][ T7544]
[ 299.473116][ T7544] dump_stack_lvl+0xe8/0x150
[ 299.473146][ T7544] sysfs_create_dir_ns+0x271/0x2a0
[ 299.473169][ T7544] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 299.473196][ T7544] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 299.473221][ T7544] ? rt_spin_unlock+0x160/0x200
[ 299.473247][ T7544] kobject_add_internal+0x631/0xd10
[ 299.473281][ T7544] kobject_init_and_add+0x12b/0x1a0
[ 299.473311][ T7544] ? __pfx_kobject_init_and_add+0x10/0x10
[ 299.473337][ T7544] ? __raw_spin_lock_init+0x45/0x100
[ 299.473365][ T7544] ? __init_swait_queue_head+0xa9/0x150
[ 299.473396][ T7544] gfs2_sys_fs_add+0x257/0x480
[ 299.473418][ T7544] ? is_dynamic_key+0x1ac/0x1c0
[ 299.473438][ T7544] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 299.473470][ T7544] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 299.473504][ T7544] gfs2_fill_super+0x141c/0x2220
[ 299.473539][ T7544] ? __pfx_gfs2_fill_super+0x10/0x10
[ 299.473557][ T7544] ? rt_spin_unlock+0x14f/0x200
[ 299.473585][ T7544] ? sb_set_blocksize+0x11b/0x210
[ 299.473607][ T7544] ? setup_bdev_super+0x4c1/0x5b0
[ 299.473636][ T7544] get_tree_bdev_flags+0x431/0x4f0
[ 299.473663][ T7544] ? __pfx_gfs2_fill_super+0x10/0x10
[ 299.473682][ T7544] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 299.473705][ T7544] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 299.473748][ T7544] gfs2_get_tree+0x51/0x1e0
[ 299.473775][ T7544] vfs_get_tree+0x92/0x2a0
[ 299.473803][ T7544] do_new_mount+0x341/0xd30
[ 299.473823][ T7544] ? apparmor_capable+0x126/0x170
[ 299.473850][ T7544] ? __pfx_do_new_mount+0x10/0x10
[ 299.473871][ T7544] ? ns_capable+0x89/0xe0
[ 299.473899][ T7544] ? user_path_at+0xd4/0x160
[ 299.473926][ T7544] ? user_path_at+0xd4/0x160
[ 299.473952][ T7544] __se_sys_mount+0x31d/0x420
[ 299.473979][ T7544] ? __pfx___se_sys_mount+0x10/0x10
[ 299.474002][ T7544] ? __x64_sys_mount+0x20/0xc0
[ 299.474019][ T7544] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 299.474038][ T7544] do_syscall_64+0x15f/0xf80
[ 299.474059][ T7544] ? trace_irq_disable+0x3b/0x140
[ 299.474084][ T7544] ? clear_bhb_loop+0x40/0x90
[ 299.474107][ T7544] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 299.474126][ T7544] RIP: 0033:0x7f523924b5ca
[ 299.474144][ T7544] 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
[ 299.474160][ T7544] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 299.474180][ T7544] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 299.474195][ T7544] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 299.474208][ T7544] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 299.474220][ T7544] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 299.474232][ T7544] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 299.474262][ T7544]
[ 299.474303][ T7544] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 299.474319][ T7544] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 299.904523][ T7543] loop2: detected capacity change from 0 to 32768
[ 299.953034][ T7543] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 299.953056][ T7543] CPU: 1 UID: 0 PID: 7543 Comm: syz.2.202 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 299.953077][ T7543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 299.953088][ T7543] Call Trace:
[ 299.953095][ T7543]
[ 299.953103][ T7543] dump_stack_lvl+0xe8/0x150
[ 299.953132][ T7543] sysfs_create_dir_ns+0x271/0x2a0
[ 299.953155][ T7543] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 299.953181][ T7543] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 299.953210][ T7543] ? rt_spin_unlock+0x160/0x200
[ 299.953236][ T7543] kobject_add_internal+0x631/0xd10
[ 299.953268][ T7543] kobject_init_and_add+0x12b/0x1a0
[ 299.953295][ T7543] ? __pfx_kobject_init_and_add+0x10/0x10
[ 299.953320][ T7543] ? __raw_spin_lock_init+0x45/0x100
[ 299.953346][ T7543] ? __init_swait_queue_head+0xa9/0x150
[ 299.953376][ T7543] gfs2_sys_fs_add+0x257/0x480
[ 299.953399][ T7543] ? is_dynamic_key+0x1ac/0x1c0
[ 299.953417][ T7543] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 299.953447][ T7543] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 299.953481][ T7543] gfs2_fill_super+0x141c/0x2220
[ 299.953517][ T7543] ? __pfx_gfs2_fill_super+0x10/0x10
[ 299.953535][ T7543] ? rt_spin_unlock+0x14f/0x200
[ 299.953564][ T7543] ? sb_set_blocksize+0x11b/0x210
[ 299.953585][ T7543] ? setup_bdev_super+0x4c1/0x5b0
[ 299.953613][ T7543] get_tree_bdev_flags+0x431/0x4f0
[ 299.953639][ T7543] ? __pfx_gfs2_fill_super+0x10/0x10
[ 299.953657][ T7543] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 299.953689][ T7543] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 299.953723][ T7543] gfs2_get_tree+0x51/0x1e0
[ 299.953744][ T7543] vfs_get_tree+0x92/0x2a0
[ 299.953768][ T7543] do_new_mount+0x341/0xd30
[ 299.953785][ T7543] ? apparmor_capable+0x126/0x170
[ 299.953810][ T7543] ? __pfx_do_new_mount+0x10/0x10
[ 299.953830][ T7543] ? ns_capable+0x89/0xe0
[ 299.953858][ T7543] ? user_path_at+0xd4/0x160
[ 299.953885][ T7543] ? user_path_at+0xd4/0x160
[ 299.953909][ T7543] __se_sys_mount+0x31d/0x420
[ 299.953934][ T7543] ? __pfx___se_sys_mount+0x10/0x10
[ 299.953971][ T7543] ? __x64_sys_mount+0x20/0xc0
[ 299.953992][ T7543] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 299.954012][ T7543] do_syscall_64+0x15f/0xf80
[ 299.954032][ T7543] ? trace_irq_disable+0x3b/0x140
[ 299.954056][ T7543] ? clear_bhb_loop+0x40/0x90
[ 299.954077][ T7543] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 299.954096][ T7543] RIP: 0033:0x7ff71f8cb5ca
[ 299.954115][ T7543] 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
[ 299.954130][ T7543] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 299.954151][ T7543] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 299.954165][ T7543] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 299.954179][ T7543] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 299.954191][ T7543] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 299.954204][ T7543] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 299.954234][ T7543]
[ 299.956676][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 299.957879][ T7543] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 299.957898][ T7543] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 300.417763][ T6799] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 300.501060][ T7546] loop4: detected capacity change from 0 to 32768
[ 300.527580][ T7546] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 300.527602][ T7546] CPU: 0 UID: 0 PID: 7546 Comm: syz.4.203 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 300.527631][ T7546] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 300.527642][ T7546] Call Trace:
[ 300.527650][ T7546]
[ 300.527658][ T7546] dump_stack_lvl+0xe8/0x150
[ 300.527688][ T7546] sysfs_create_dir_ns+0x271/0x2a0
[ 300.527711][ T7546] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 300.527742][ T7546] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 300.527768][ T7546] ? rt_spin_unlock+0x160/0x200
[ 300.527795][ T7546] kobject_add_internal+0x631/0xd10
[ 300.527828][ T7546] kobject_init_and_add+0x12b/0x1a0
[ 300.527857][ T7546] ? __pfx_kobject_init_and_add+0x10/0x10
[ 300.527882][ T7546] ? __raw_spin_lock_init+0x45/0x100
[ 300.527910][ T7546] ? __init_swait_queue_head+0xa9/0x150
[ 300.527940][ T7546] gfs2_sys_fs_add+0x257/0x480
[ 300.527962][ T7546] ? is_dynamic_key+0x1ac/0x1c0
[ 300.527982][ T7546] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 300.528014][ T7546] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 300.528048][ T7546] gfs2_fill_super+0x141c/0x2220
[ 300.528084][ T7546] ? __pfx_gfs2_fill_super+0x10/0x10
[ 300.528101][ T7546] ? rt_spin_unlock+0x14f/0x200
[ 300.528129][ T7546] ? sb_set_blocksize+0x11b/0x210
[ 300.528150][ T7546] ? setup_bdev_super+0x4c1/0x5b0
[ 300.528179][ T7546] get_tree_bdev_flags+0x431/0x4f0
[ 300.528205][ T7546] ? __pfx_gfs2_fill_super+0x10/0x10
[ 300.528223][ T7546] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 300.528246][ T7546] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 300.528282][ T7546] gfs2_get_tree+0x51/0x1e0
[ 300.528304][ T7546] vfs_get_tree+0x92/0x2a0
[ 300.528332][ T7546] do_new_mount+0x341/0xd30
[ 300.528351][ T7546] ? apparmor_capable+0x126/0x170
[ 300.528378][ T7546] ? __pfx_do_new_mount+0x10/0x10
[ 300.528398][ T7546] ? ns_capable+0x89/0xe0
[ 300.528426][ T7546] ? user_path_at+0xd4/0x160
[ 300.528453][ T7546] ? user_path_at+0xd4/0x160
[ 300.528479][ T7546] __se_sys_mount+0x31d/0x420
[ 300.528505][ T7546] ? __pfx___se_sys_mount+0x10/0x10
[ 300.528544][ T7546] ? __x64_sys_mount+0x20/0xc0
[ 300.528564][ T7546] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 300.528585][ T7546] do_syscall_64+0x15f/0xf80
[ 300.528605][ T7546] ? trace_irq_disable+0x3b/0x140
[ 300.528637][ T7546] ? clear_bhb_loop+0x40/0x90
[ 300.528659][ T7546] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 300.528678][ T7546] RIP: 0033:0x7fd5f95bb5ca
[ 300.528696][ T7546] 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
[ 300.528712][ T7546] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 300.528733][ T7546] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 300.528747][ T7546] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 300.528761][ T7546] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 300.528773][ T7546] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 300.528785][ T7546] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 300.528815][ T7546]
[ 300.547961][ T7546] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 300.547982][ T7546] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 300.810656][ T7548] loop0: detected capacity change from 0 to 32768
[ 300.863571][ T7548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 300.863592][ T7548] CPU: 0 UID: 0 PID: 7548 Comm: syz.0.204 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 300.863613][ T7548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 300.863623][ T7548] Call Trace:
[ 300.863631][ T7548]
[ 300.863639][ T7548] dump_stack_lvl+0xe8/0x150
[ 300.863668][ T7548] sysfs_create_dir_ns+0x271/0x2a0
[ 300.863695][ T7548] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 300.863722][ T7548] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 300.863747][ T7548] ? rt_spin_unlock+0x160/0x200
[ 300.863773][ T7548] kobject_add_internal+0x631/0xd10
[ 300.863805][ T7548] kobject_init_and_add+0x12b/0x1a0
[ 300.863834][ T7548] ? __pfx_kobject_init_and_add+0x10/0x10
[ 300.863865][ T7548] ? __raw_spin_lock_init+0x45/0x100
[ 300.863892][ T7548] ? __init_swait_queue_head+0xa9/0x150
[ 300.863921][ T7548] gfs2_sys_fs_add+0x257/0x480
[ 300.863943][ T7548] ? is_dynamic_key+0x1ac/0x1c0
[ 300.863961][ T7548] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 300.863992][ T7548] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 300.864025][ T7548] gfs2_fill_super+0x141c/0x2220
[ 300.864058][ T7548] ? __pfx_gfs2_fill_super+0x10/0x10
[ 300.864075][ T7548] ? rt_spin_unlock+0x14f/0x200
[ 300.864103][ T7548] ? sb_set_blocksize+0x11b/0x210
[ 300.864124][ T7548] ? setup_bdev_super+0x4c1/0x5b0
[ 300.864152][ T7548] get_tree_bdev_flags+0x431/0x4f0
[ 300.864176][ T7548] ? __pfx_gfs2_fill_super+0x10/0x10
[ 300.864195][ T7548] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 300.864218][ T7548] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 300.864252][ T7548] gfs2_get_tree+0x51/0x1e0
[ 300.864273][ T7548] vfs_get_tree+0x92/0x2a0
[ 300.864300][ T7548] do_new_mount+0x341/0xd30
[ 300.864319][ T7548] ? apparmor_capable+0x126/0x170
[ 300.864344][ T7548] ? __pfx_do_new_mount+0x10/0x10
[ 300.864364][ T7548] ? ns_capable+0x89/0xe0
[ 300.864391][ T7548] ? user_path_at+0xd4/0x160
[ 300.864417][ T7548] ? user_path_at+0xd4/0x160
[ 300.864442][ T7548] __se_sys_mount+0x31d/0x420
[ 300.864468][ T7548] ? __pfx___se_sys_mount+0x10/0x10
[ 300.864494][ T7548] ? __x64_sys_mount+0x20/0xc0
[ 300.864514][ T7548] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 300.864534][ T7548] do_syscall_64+0x15f/0xf80
[ 300.864553][ T7548] ? trace_irq_disable+0x3b/0x140
[ 300.864578][ T7548] ? clear_bhb_loop+0x40/0x90
[ 300.864599][ T7548] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 300.864617][ T7548] RIP: 0033:0x7fbd28b9b5ca
[ 300.864634][ T7548] 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
[ 300.864649][ T7548] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 300.864669][ T7548] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 300.864683][ T7548] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 300.864695][ T7548] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 300.864707][ T7548] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 300.864720][ T7548] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 300.864749][ T7548]
[ 300.864784][ T7548] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 300.864798][ T7548] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 301.424032][ T7110] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 301.650295][ T6792] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 302.009968][ T7550] loop3: detected capacity change from 0 to 32768
[ 302.092202][ T7550] workqueue: Failed to create a rescuer kthread for wq "gfs2-delete/syz:syz": -EINTR
[ 302.464272][ T6799] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 302.665966][ T7556] loop5: detected capacity change from 0 to 32768
[ 302.696629][ T7556] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 302.696652][ T7556] CPU: 1 UID: 0 PID: 7556 Comm: syz.5.206 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 302.696675][ T7556] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 302.696686][ T7556] Call Trace:
[ 302.696694][ T7556]
[ 302.696703][ T7556] dump_stack_lvl+0xe8/0x150
[ 302.696740][ T7556] sysfs_create_dir_ns+0x271/0x2a0
[ 302.696765][ T7556] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 302.696793][ T7556] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 302.696818][ T7556] ? rt_spin_unlock+0x160/0x200
[ 302.696847][ T7556] kobject_add_internal+0x631/0xd10
[ 302.696889][ T7556] kobject_init_and_add+0x12b/0x1a0
[ 302.696942][ T7556] ? __pfx_kobject_init_and_add+0x10/0x10
[ 302.696969][ T7556] ? __raw_spin_lock_init+0x45/0x100
[ 302.696996][ T7556] ? __init_swait_queue_head+0xa9/0x150
[ 302.697026][ T7556] gfs2_sys_fs_add+0x257/0x480
[ 302.697050][ T7556] ? is_dynamic_key+0x1ac/0x1c0
[ 302.697070][ T7556] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 302.697102][ T7556] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 302.697136][ T7556] gfs2_fill_super+0x141c/0x2220
[ 302.697173][ T7556] ? __pfx_gfs2_fill_super+0x10/0x10
[ 302.697190][ T7556] ? rt_spin_unlock+0x14f/0x200
[ 302.697236][ T7556] ? sb_set_blocksize+0x11b/0x210
[ 302.697259][ T7556] ? setup_bdev_super+0x4c1/0x5b0
[ 302.697303][ T7556] get_tree_bdev_flags+0x431/0x4f0
[ 302.697330][ T7556] ? __pfx_gfs2_fill_super+0x10/0x10
[ 302.697349][ T7556] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 302.697373][ T7556] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 302.697410][ T7556] gfs2_get_tree+0x51/0x1e0
[ 302.697433][ T7556] vfs_get_tree+0x92/0x2a0
[ 302.697460][ T7556] do_new_mount+0x341/0xd30
[ 302.697479][ T7556] ? apparmor_capable+0x126/0x170
[ 302.697505][ T7556] ? __pfx_do_new_mount+0x10/0x10
[ 302.697526][ T7556] ? ns_capable+0x89/0xe0
[ 302.697555][ T7556] ? user_path_at+0xd4/0x160
[ 302.697582][ T7556] ? user_path_at+0xd4/0x160
[ 302.697608][ T7556] __se_sys_mount+0x31d/0x420
[ 302.697635][ T7556] ? __pfx___se_sys_mount+0x10/0x10
[ 302.697663][ T7556] ? __x64_sys_mount+0x20/0xc0
[ 302.697684][ T7556] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 302.697710][ T7556] do_syscall_64+0x15f/0xf80
[ 302.697732][ T7556] ? trace_irq_disable+0x3b/0x140
[ 302.697755][ T7556] ? clear_bhb_loop+0x40/0x90
[ 302.697777][ T7556] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 302.697795][ T7556] RIP: 0033:0x7f523924b5ca
[ 302.697813][ T7556] 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
[ 302.697827][ T7556] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 302.697846][ T7556] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 302.697858][ T7556] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 302.697870][ T7556] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 302.697882][ T7556] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 302.697894][ T7556] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 302.697923][ T7556]
[ 302.697952][ T7556] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 302.697968][ T7556] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/05/08 01:07:48 executed programs: 204
[ 303.086440][ T7565] loop0: detected capacity change from 0 to 32768
[ 303.097444][ T7565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 303.097465][ T7565] CPU: 0 UID: 0 PID: 7565 Comm: syz.0.209 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 303.097486][ T7565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 303.097496][ T7565] Call Trace:
[ 303.097504][ T7565]
[ 303.097512][ T7565] dump_stack_lvl+0xe8/0x150
[ 303.097538][ T7565] sysfs_create_dir_ns+0x271/0x2a0
[ 303.097561][ T7565] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 303.097585][ T7565] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 303.097609][ T7565] ? rt_spin_unlock+0x160/0x200
[ 303.097635][ T7565] kobject_add_internal+0x631/0xd10
[ 303.097666][ T7565] kobject_init_and_add+0x12b/0x1a0
[ 303.097695][ T7565] ? __pfx_kobject_init_and_add+0x10/0x10
[ 303.097728][ T7565] ? __raw_spin_lock_init+0x45/0x100
[ 303.097754][ T7565] ? __init_swait_queue_head+0xa9/0x150
[ 303.097781][ T7565] gfs2_sys_fs_add+0x257/0x480
[ 303.097803][ T7565] ? is_dynamic_key+0x1ac/0x1c0
[ 303.097821][ T7565] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 303.097850][ T7565] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 303.097883][ T7565] gfs2_fill_super+0x141c/0x2220
[ 303.097916][ T7565] ? __pfx_gfs2_fill_super+0x10/0x10
[ 303.097934][ T7565] ? rt_spin_unlock+0x14f/0x200
[ 303.097963][ T7565] ? sb_set_blocksize+0x11b/0x210
[ 303.097983][ T7565] ? setup_bdev_super+0x4c1/0x5b0
[ 303.098011][ T7565] get_tree_bdev_flags+0x431/0x4f0
[ 303.098035][ T7565] ? __pfx_gfs2_fill_super+0x10/0x10
[ 303.098053][ T7565] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 303.098074][ T7565] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 303.098109][ T7565] gfs2_get_tree+0x51/0x1e0
[ 303.098132][ T7565] vfs_get_tree+0x92/0x2a0
[ 303.098160][ T7565] do_new_mount+0x341/0xd30
[ 303.098180][ T7565] ? apparmor_capable+0x126/0x170
[ 303.098207][ T7565] ? __pfx_do_new_mount+0x10/0x10
[ 303.098228][ T7565] ? ns_capable+0x89/0xe0
[ 303.098256][ T7565] ? user_path_at+0xd4/0x160
[ 303.098283][ T7565] ? user_path_at+0xd4/0x160
[ 303.098308][ T7565] __se_sys_mount+0x31d/0x420
[ 303.098336][ T7565] ? __pfx___se_sys_mount+0x10/0x10
[ 303.098361][ T7565] ? __x64_sys_mount+0x20/0xc0
[ 303.098382][ T7565] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 303.098403][ T7565] do_syscall_64+0x15f/0xf80
[ 303.098423][ T7565] ? trace_irq_disable+0x3b/0x140
[ 303.098447][ T7565] ? clear_bhb_loop+0x40/0x90
[ 303.098469][ T7565] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 303.098487][ T7565] RIP: 0033:0x7fbd28b9b5ca
[ 303.098506][ T7565] 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
[ 303.098521][ T7565] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 303.098540][ T7565] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 303.098553][ T7565] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 303.098567][ T7565] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 303.098579][ T7565] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 303.098591][ T7565] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 303.098621][ T7565]
[ 303.099234][ T7565] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 303.099252][ T7565] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 303.646672][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 303.796614][ T7110] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 303.997023][ T7566] loop4: detected capacity change from 0 to 32768
[ 304.069995][ T7566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 304.070018][ T7566] CPU: 0 UID: 0 PID: 7566 Comm: syz.4.208 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 304.070040][ T7566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 304.070051][ T7566] Call Trace:
[ 304.070059][ T7566]
[ 304.070067][ T7566] dump_stack_lvl+0xe8/0x150
[ 304.070097][ T7566] sysfs_create_dir_ns+0x271/0x2a0
[ 304.070121][ T7566] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 304.070149][ T7566] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 304.070174][ T7566] ? rt_spin_unlock+0x160/0x200
[ 304.070202][ T7566] kobject_add_internal+0x631/0xd10
[ 304.070235][ T7566] kobject_init_and_add+0x12b/0x1a0
[ 304.070265][ T7566] ? __pfx_kobject_init_and_add+0x10/0x10
[ 304.070291][ T7566] ? __raw_spin_lock_init+0x45/0x100
[ 304.070319][ T7566] ? __init_swait_queue_head+0xa9/0x150
[ 304.070347][ T7566] gfs2_sys_fs_add+0x257/0x480
[ 304.070370][ T7566] ? is_dynamic_key+0x1ac/0x1c0
[ 304.070389][ T7566] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 304.070420][ T7566] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 304.070454][ T7566] gfs2_fill_super+0x141c/0x2220
[ 304.070490][ T7566] ? __pfx_gfs2_fill_super+0x10/0x10
[ 304.070507][ T7566] ? rt_spin_unlock+0x14f/0x200
[ 304.070536][ T7566] ? sb_set_blocksize+0x11b/0x210
[ 304.070557][ T7566] ? setup_bdev_super+0x4c1/0x5b0
[ 304.070587][ T7566] get_tree_bdev_flags+0x431/0x4f0
[ 304.070612][ T7566] ? __pfx_gfs2_fill_super+0x10/0x10
[ 304.070642][ T7566] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 304.070666][ T7566] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 304.070702][ T7566] gfs2_get_tree+0x51/0x1e0
[ 304.070725][ T7566] vfs_get_tree+0x92/0x2a0
[ 304.070752][ T7566] do_new_mount+0x341/0xd30
[ 304.070772][ T7566] ? apparmor_capable+0x126/0x170
[ 304.070799][ T7566] ? __pfx_do_new_mount+0x10/0x10
[ 304.070821][ T7566] ? ns_capable+0x89/0xe0
[ 304.070865][ T7566] ? user_path_at+0xd4/0x160
[ 304.070892][ T7566] ? user_path_at+0xd4/0x160
[ 304.070918][ T7566] __se_sys_mount+0x31d/0x420
[ 304.070945][ T7566] ? __pfx___se_sys_mount+0x10/0x10
[ 304.070973][ T7566] ? __x64_sys_mount+0x20/0xc0
[ 304.070994][ T7566] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 304.071014][ T7566] do_syscall_64+0x15f/0xf80
[ 304.071035][ T7566] ? trace_irq_disable+0x3b/0x140
[ 304.071060][ T7566] ? clear_bhb_loop+0x40/0x90
[ 304.071082][ T7566] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 304.071101][ T7566] RIP: 0033:0x7fd5f95bb5ca
[ 304.071119][ T7566] 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
[ 304.071135][ T7566] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 304.071156][ T7566] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 304.071170][ T7566] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 304.071183][ T7566] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 304.071196][ T7566] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 304.071209][ T7566] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 304.071239][ T7566]
[ 304.071282][ T7566] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 304.071297][ T7566] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 304.754736][ T7570] loop3: detected capacity change from 0 to 32768
[ 304.793428][ T7570] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 304.793449][ T7570] CPU: 1 UID: 0 PID: 7570 Comm: syz.3.210 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 304.793470][ T7570] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 304.793481][ T7570] Call Trace:
[ 304.793489][ T7570]
[ 304.793497][ T7570] dump_stack_lvl+0xe8/0x150
[ 304.793527][ T7570] sysfs_create_dir_ns+0x271/0x2a0
[ 304.793550][ T7570] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 304.793578][ T7570] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 304.793602][ T7570] ? rt_spin_unlock+0x160/0x200
[ 304.793629][ T7570] kobject_add_internal+0x631/0xd10
[ 304.793663][ T7570] kobject_init_and_add+0x12b/0x1a0
[ 304.793692][ T7570] ? __pfx_kobject_init_and_add+0x10/0x10
[ 304.793718][ T7570] ? __raw_spin_lock_init+0x45/0x100
[ 304.793746][ T7570] ? __init_swait_queue_head+0xa9/0x150
[ 304.793775][ T7570] gfs2_sys_fs_add+0x257/0x480
[ 304.793798][ T7570] ? is_dynamic_key+0x1ac/0x1c0
[ 304.793818][ T7570] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 304.793848][ T7570] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 304.793888][ T7570] gfs2_fill_super+0x141c/0x2220
[ 304.793923][ T7570] ? __pfx_gfs2_fill_super+0x10/0x10
[ 304.793940][ T7570] ? rt_spin_unlock+0x14f/0x200
[ 304.793970][ T7570] ? sb_set_blocksize+0x11b/0x210
[ 304.793992][ T7570] ? setup_bdev_super+0x4c1/0x5b0
[ 304.794021][ T7570] get_tree_bdev_flags+0x431/0x4f0
[ 304.794047][ T7570] ? __pfx_gfs2_fill_super+0x10/0x10
[ 304.794065][ T7570] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 304.794088][ T7570] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 304.794122][ T7570] gfs2_get_tree+0x51/0x1e0
[ 304.794145][ T7570] vfs_get_tree+0x92/0x2a0
[ 304.794173][ T7570] do_new_mount+0x341/0xd30
[ 304.794193][ T7570] ? apparmor_capable+0x126/0x170
[ 304.794218][ T7570] ? __pfx_do_new_mount+0x10/0x10
[ 304.794240][ T7570] ? ns_capable+0x89/0xe0
[ 304.794273][ T7570] ? user_path_at+0xd4/0x160
[ 304.794300][ T7570] ? user_path_at+0xd4/0x160
[ 304.794324][ T7570] __se_sys_mount+0x31d/0x420
[ 304.794353][ T7570] ? __pfx___se_sys_mount+0x10/0x10
[ 304.794378][ T7570] ? __x64_sys_mount+0x20/0xc0
[ 304.794397][ T7570] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 304.794415][ T7570] do_syscall_64+0x15f/0xf80
[ 304.794434][ T7570] ? trace_irq_disable+0x3b/0x140
[ 304.794459][ T7570] ? clear_bhb_loop+0x40/0x90
[ 304.794481][ T7570] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 304.794499][ T7570] RIP: 0033:0x7f4354b3b5ca
[ 304.794517][ T7570] 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
[ 304.794533][ T7570] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 304.794552][ T7570] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 304.794566][ T7570] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 304.794580][ T7570] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 304.794593][ T7570] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 304.794606][ T7570] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 304.794636][ T7570]
[ 304.794781][ T7570] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 304.794797][ T7570] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 304.826338][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 305.356530][ T6798] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 305.938294][ T7578] loop0: detected capacity change from 0 to 32768
[ 305.948044][ T7578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 305.948066][ T7578] CPU: 1 UID: 0 PID: 7578 Comm: syz.0.212 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 305.948086][ T7578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 305.948097][ T7578] Call Trace:
[ 305.948105][ T7578]
[ 305.948112][ T7578] dump_stack_lvl+0xe8/0x150
[ 305.948140][ T7578] sysfs_create_dir_ns+0x271/0x2a0
[ 305.948170][ T7578] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 305.948197][ T7578] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 305.948222][ T7578] ? rt_spin_unlock+0x160/0x200
[ 305.948248][ T7578] kobject_add_internal+0x631/0xd10
[ 305.948280][ T7578] kobject_init_and_add+0x12b/0x1a0
[ 305.948307][ T7578] ? __pfx_kobject_init_and_add+0x10/0x10
[ 305.948332][ T7578] ? __raw_spin_lock_init+0x45/0x100
[ 305.948359][ T7578] ? __init_swait_queue_head+0xa9/0x150
[ 305.948384][ T7578] gfs2_sys_fs_add+0x257/0x480
[ 305.948405][ T7578] ? is_dynamic_key+0x1ac/0x1c0
[ 305.948422][ T7578] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 305.948448][ T7578] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 305.948477][ T7578] gfs2_fill_super+0x141c/0x2220
[ 305.948507][ T7578] ? __pfx_gfs2_fill_super+0x10/0x10
[ 305.948520][ T7578] ? rt_spin_unlock+0x14f/0x200
[ 305.948545][ T7578] ? sb_set_blocksize+0x11b/0x210
[ 305.948563][ T7578] ? setup_bdev_super+0x4c1/0x5b0
[ 305.948591][ T7578] get_tree_bdev_flags+0x431/0x4f0
[ 305.948613][ T7578] ? __pfx_gfs2_fill_super+0x10/0x10
[ 305.948631][ T7578] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 305.948652][ T7578] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 305.948684][ T7578] gfs2_get_tree+0x51/0x1e0
[ 305.948704][ T7578] vfs_get_tree+0x92/0x2a0
[ 305.948730][ T7578] do_new_mount+0x341/0xd30
[ 305.948748][ T7578] ? apparmor_capable+0x126/0x170
[ 305.948773][ T7578] ? __pfx_do_new_mount+0x10/0x10
[ 305.948794][ T7578] ? ns_capable+0x89/0xe0
[ 305.948821][ T7578] ? user_path_at+0xd4/0x160
[ 305.948847][ T7578] ? user_path_at+0xd4/0x160
[ 305.948872][ T7578] __se_sys_mount+0x31d/0x420
[ 305.948900][ T7578] ? __pfx___se_sys_mount+0x10/0x10
[ 305.948932][ T7578] ? __x64_sys_mount+0x20/0xc0
[ 305.948952][ T7578] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 305.948971][ T7578] do_syscall_64+0x15f/0xf80
[ 305.948991][ T7578] ? trace_irq_disable+0x3b/0x140
[ 305.949015][ T7578] ? clear_bhb_loop+0x40/0x90
[ 305.949036][ T7578] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 305.949054][ T7578] RIP: 0033:0x7fbd28b9b5ca
[ 305.949070][ T7578] 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
[ 305.949086][ T7578] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 305.949107][ T7578] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 305.949121][ T7578] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 305.949134][ T7578] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 305.949147][ T7578] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 305.949168][ T7578] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 305.949198][ T7578]
[ 305.952569][ T7578] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 305.952590][ T7578] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 305.980911][ T7576] loop5: detected capacity change from 0 to 32768
[ 306.018424][ T7576] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 306.018446][ T7576] CPU: 1 UID: 0 PID: 7576 Comm: syz.5.211 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 306.018466][ T7576] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 306.018482][ T7576] Call Trace:
[ 306.018489][ T7576]
[ 306.018496][ T7576] dump_stack_lvl+0xe8/0x150
[ 306.018524][ T7576] sysfs_create_dir_ns+0x271/0x2a0
[ 306.018547][ T7576] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 306.018574][ T7576] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 306.018598][ T7576] ? rt_spin_unlock+0x160/0x200
[ 306.018624][ T7576] kobject_add_internal+0x631/0xd10
[ 306.018656][ T7576] kobject_init_and_add+0x12b/0x1a0
[ 306.018685][ T7576] ? __pfx_kobject_init_and_add+0x10/0x10
[ 306.018710][ T7576] ? __raw_spin_lock_init+0x45/0x100
[ 306.018737][ T7576] ? __init_swait_queue_head+0xa9/0x150
[ 306.018765][ T7576] gfs2_sys_fs_add+0x257/0x480
[ 306.018787][ T7576] ? is_dynamic_key+0x1ac/0x1c0
[ 306.018806][ T7576] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 306.018836][ T7576] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 306.018869][ T7576] gfs2_fill_super+0x141c/0x2220
[ 306.018902][ T7576] ? __pfx_gfs2_fill_super+0x10/0x10
[ 306.018919][ T7576] ? rt_spin_unlock+0x14f/0x200
[ 306.018947][ T7576] ? sb_set_blocksize+0x11b/0x210
[ 306.018968][ T7576] ? setup_bdev_super+0x4c1/0x5b0
[ 306.018995][ T7576] get_tree_bdev_flags+0x431/0x4f0
[ 306.019020][ T7576] ? __pfx_gfs2_fill_super+0x10/0x10
[ 306.019038][ T7576] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 306.019060][ T7576] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 306.019094][ T7576] gfs2_get_tree+0x51/0x1e0
[ 306.019115][ T7576] vfs_get_tree+0x92/0x2a0
[ 306.019143][ T7576] do_new_mount+0x341/0xd30
[ 306.019169][ T7576] ? apparmor_capable+0x126/0x170
[ 306.019195][ T7576] ? __pfx_do_new_mount+0x10/0x10
[ 306.019215][ T7576] ? ns_capable+0x89/0xe0
[ 306.019242][ T7576] ? user_path_at+0xd4/0x160
[ 306.019268][ T7576] ? user_path_at+0xd4/0x160
[ 306.019292][ T7576] __se_sys_mount+0x31d/0x420
[ 306.019319][ T7576] ? __pfx___se_sys_mount+0x10/0x10
[ 306.019345][ T7576] ? __x64_sys_mount+0x20/0xc0
[ 306.019365][ T7576] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 306.019385][ T7576] do_syscall_64+0x15f/0xf80
[ 306.019404][ T7576] ? trace_irq_disable+0x3b/0x140
[ 306.019428][ T7576] ? clear_bhb_loop+0x40/0x90
[ 306.019450][ T7576] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 306.019467][ T7576] RIP: 0033:0x7f523924b5ca
[ 306.019485][ T7576] 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
[ 306.019500][ T7576] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 306.019520][ T7576] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 306.019533][ T7576] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 306.019550][ T7576] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 306.019562][ T7576] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 306.019572][ T7576] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 306.019598][ T7576]
[ 306.026859][ T7576] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 306.026880][ T7576] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 306.040184][ T7576] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 306.051111][ T7583] loop2: detected capacity change from 0 to 32768
[ 306.211032][ T7583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 306.211055][ T7583] CPU: 1 UID: 0 PID: 7583 Comm: syz.2.214 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 306.211075][ T7583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 306.211084][ T7583] Call Trace:
[ 306.211092][ T7583]
[ 306.211099][ T7583] dump_stack_lvl+0xe8/0x150
[ 306.211129][ T7583] sysfs_create_dir_ns+0x271/0x2a0
[ 306.211152][ T7583] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 306.211179][ T7583] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 306.211203][ T7583] ? rt_spin_unlock+0x160/0x200
[ 306.211230][ T7583] kobject_add_internal+0x631/0xd10
[ 306.211261][ T7583] kobject_init_and_add+0x12b/0x1a0
[ 306.211290][ T7583] ? __pfx_kobject_init_and_add+0x10/0x10
[ 306.211315][ T7583] ? __raw_spin_lock_init+0x45/0x100
[ 306.211341][ T7583] ? __init_swait_queue_head+0xa9/0x150
[ 306.211371][ T7583] gfs2_sys_fs_add+0x257/0x480
[ 306.211392][ T7583] ? is_dynamic_key+0x1ac/0x1c0
[ 306.211417][ T7583] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 306.211448][ T7583] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 306.211481][ T7583] gfs2_fill_super+0x141c/0x2220
[ 306.211514][ T7583] ? __pfx_gfs2_fill_super+0x10/0x10
[ 306.211531][ T7583] ? rt_spin_unlock+0x14f/0x200
[ 306.211559][ T7583] ? sb_set_blocksize+0x11b/0x210
[ 306.211580][ T7583] ? setup_bdev_super+0x4c1/0x5b0
[ 306.211607][ T7583] get_tree_bdev_flags+0x431/0x4f0
[ 306.211633][ T7583] ? __pfx_gfs2_fill_super+0x10/0x10
[ 306.211651][ T7583] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 306.211674][ T7583] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 306.211712][ T7583] gfs2_get_tree+0x51/0x1e0
[ 306.211734][ T7583] vfs_get_tree+0x92/0x2a0
[ 306.211762][ T7583] do_new_mount+0x341/0xd30
[ 306.211781][ T7583] ? apparmor_capable+0x126/0x170
[ 306.211806][ T7583] ? __pfx_do_new_mount+0x10/0x10
[ 306.211827][ T7583] ? ns_capable+0x89/0xe0
[ 306.211853][ T7583] ? user_path_at+0xd4/0x160
[ 306.211880][ T7583] ? user_path_at+0xd4/0x160
[ 306.211903][ T7583] __se_sys_mount+0x31d/0x420
[ 306.211928][ T7583] ? __pfx___se_sys_mount+0x10/0x10
[ 306.211958][ T7583] ? __x64_sys_mount+0x20/0xc0
[ 306.211978][ T7583] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 306.211998][ T7583] do_syscall_64+0x15f/0xf80
[ 306.212017][ T7583] ? trace_irq_disable+0x3b/0x140
[ 306.212042][ T7583] ? clear_bhb_loop+0x40/0x90
[ 306.212063][ T7583] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 306.212081][ T7583] RIP: 0033:0x7ff71f8cb5ca
[ 306.212099][ T7583] 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
[ 306.212115][ T7583] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 306.212134][ T7583] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 306.212147][ T7583] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 306.212160][ T7583] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 306.212173][ T7583] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 306.212185][ T7583] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 306.212214][ T7583]
[ 306.212238][ T7583] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 306.212252][ T7583] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 306.312782][ T7583] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 306.752242][ T6798] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 307.212959][ T7584] loop4: detected capacity change from 0 to 32768
[ 307.242950][ T7584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 307.242972][ T7584] CPU: 0 UID: 0 PID: 7584 Comm: syz.4.213 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 307.242994][ T7584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 307.243005][ T7584] Call Trace:
[ 307.243013][ T7584]
[ 307.243021][ T7584] dump_stack_lvl+0xe8/0x150
[ 307.243051][ T7584] sysfs_create_dir_ns+0x271/0x2a0
[ 307.243074][ T7584] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 307.243102][ T7584] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 307.243127][ T7584] ? rt_spin_unlock+0x160/0x200
[ 307.243153][ T7584] kobject_add_internal+0x631/0xd10
[ 307.243185][ T7584] kobject_init_and_add+0x12b/0x1a0
[ 307.243215][ T7584] ? __pfx_kobject_init_and_add+0x10/0x10
[ 307.243242][ T7584] ? __raw_spin_lock_init+0x45/0x100
[ 307.243270][ T7584] ? __init_swait_queue_head+0xa9/0x150
[ 307.243300][ T7584] gfs2_sys_fs_add+0x257/0x480
[ 307.243323][ T7584] ? is_dynamic_key+0x1ac/0x1c0
[ 307.243343][ T7584] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 307.243375][ T7584] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 307.243417][ T7584] gfs2_fill_super+0x141c/0x2220
[ 307.243453][ T7584] ? __pfx_gfs2_fill_super+0x10/0x10
[ 307.243470][ T7584] ? rt_spin_unlock+0x14f/0x200
[ 307.243500][ T7584] ? sb_set_blocksize+0x11b/0x210
[ 307.243522][ T7584] ? setup_bdev_super+0x4c1/0x5b0
[ 307.243551][ T7584] get_tree_bdev_flags+0x431/0x4f0
[ 307.243577][ T7584] ? __pfx_gfs2_fill_super+0x10/0x10
[ 307.243595][ T7584] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 307.243619][ T7584] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 307.243654][ T7584] gfs2_get_tree+0x51/0x1e0
[ 307.243677][ T7584] vfs_get_tree+0x92/0x2a0
[ 307.243704][ T7584] do_new_mount+0x341/0xd30
[ 307.243724][ T7584] ? apparmor_capable+0x126/0x170
[ 307.243751][ T7584] ? __pfx_do_new_mount+0x10/0x10
[ 307.243772][ T7584] ? ns_capable+0x89/0xe0
[ 307.243800][ T7584] ? user_path_at+0xd4/0x160
[ 307.243827][ T7584] ? user_path_at+0xd4/0x160
[ 307.243853][ T7584] __se_sys_mount+0x31d/0x420
[ 307.243881][ T7584] ? __pfx___se_sys_mount+0x10/0x10
[ 307.243909][ T7584] ? __x64_sys_mount+0x20/0xc0
[ 307.243928][ T7584] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 307.243949][ T7584] do_syscall_64+0x15f/0xf80
[ 307.243969][ T7584] ? trace_irq_disable+0x3b/0x140
[ 307.243994][ T7584] ? clear_bhb_loop+0x40/0x90
[ 307.244017][ T7584] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 307.244035][ T7584] RIP: 0033:0x7fd5f95bb5ca
[ 307.244054][ T7584] 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
[ 307.244070][ T7584] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 307.244091][ T7584] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 307.244106][ T7584] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 307.244119][ T7584] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 307.244133][ T7584] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 307.244145][ T7584] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 307.244175][ T7584]
[ 307.244211][ T7584] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 307.244226][ T7584] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 307.874449][ T7110] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 307.913787][ T7588] loop3: detected capacity change from 0 to 32768
[ 307.937588][ T7588] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 307.937611][ T7588] CPU: 1 UID: 0 PID: 7588 Comm: syz.3.215 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 307.937631][ T7588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 307.937642][ T7588] Call Trace:
[ 307.937651][ T7588]
[ 307.937659][ T7588] dump_stack_lvl+0xe8/0x150
[ 307.937688][ T7588] sysfs_create_dir_ns+0x271/0x2a0
[ 307.937712][ T7588] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 307.937740][ T7588] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 307.937766][ T7588] ? rt_spin_unlock+0x160/0x200
[ 307.937794][ T7588] kobject_add_internal+0x631/0xd10
[ 307.937826][ T7588] kobject_init_and_add+0x12b/0x1a0
[ 307.937857][ T7588] ? __pfx_kobject_init_and_add+0x10/0x10
[ 307.937883][ T7588] ? __raw_spin_lock_init+0x45/0x100
[ 307.937910][ T7588] ? __init_swait_queue_head+0xa9/0x150
[ 307.937940][ T7588] gfs2_sys_fs_add+0x257/0x480
[ 307.937962][ T7588] ? is_dynamic_key+0x1ac/0x1c0
[ 307.937982][ T7588] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 307.938013][ T7588] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 307.938047][ T7588] gfs2_fill_super+0x141c/0x2220
[ 307.938082][ T7588] ? __pfx_gfs2_fill_super+0x10/0x10
[ 307.938100][ T7588] ? rt_spin_unlock+0x14f/0x200
[ 307.938129][ T7588] ? sb_set_blocksize+0x11b/0x210
[ 307.938151][ T7588] ? setup_bdev_super+0x4c1/0x5b0
[ 307.938180][ T7588] get_tree_bdev_flags+0x431/0x4f0
[ 307.938206][ T7588] ? __pfx_gfs2_fill_super+0x10/0x10
[ 307.938233][ T7588] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 307.938257][ T7588] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 307.938292][ T7588] gfs2_get_tree+0x51/0x1e0
[ 307.938314][ T7588] vfs_get_tree+0x92/0x2a0
[ 307.938340][ T7588] do_new_mount+0x341/0xd30
[ 307.938358][ T7588] ? apparmor_capable+0x126/0x170
[ 307.938383][ T7588] ? __pfx_do_new_mount+0x10/0x10
[ 307.938403][ T7588] ? ns_capable+0x89/0xe0
[ 307.938430][ T7588] ? user_path_at+0xd4/0x160
[ 307.938458][ T7588] ? user_path_at+0xd4/0x160
[ 307.938484][ T7588] __se_sys_mount+0x31d/0x420
[ 307.938511][ T7588] ? __pfx___se_sys_mount+0x10/0x10
[ 307.938539][ T7588] ? __x64_sys_mount+0x20/0xc0
[ 307.938559][ T7588] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 307.938580][ T7588] do_syscall_64+0x15f/0xf80
[ 307.938601][ T7588] ? trace_irq_disable+0x3b/0x140
[ 307.938627][ T7588] ? clear_bhb_loop+0x40/0x90
[ 307.938649][ T7588] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 307.938667][ T7588] RIP: 0033:0x7f4354b3b5ca
[ 307.938686][ T7588] 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
[ 307.938701][ T7588] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 307.938721][ T7588] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 307.938736][ T7588] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 307.938749][ T7588] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 307.938762][ T7588] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 307.938774][ T7588] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 307.938808][ T7588]
[ 307.950723][ T7588] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 307.950746][ T7588] gfs2: fsid=syz:syz: error -17 adding sysfs files
2026/05/08 01:07:53 executed programs: 213
[ 308.517185][ T6798] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 309.254946][ T7596] loop0: detected capacity change from 0 to 32768
[ 309.272344][ T7596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 309.272365][ T7596] CPU: 1 UID: 0 PID: 7596 Comm: syz.0.216 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 309.272386][ T7596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 309.272396][ T7596] Call Trace:
[ 309.272404][ T7596]
[ 309.272412][ T7596] dump_stack_lvl+0xe8/0x150
[ 309.272441][ T7596] sysfs_create_dir_ns+0x271/0x2a0
[ 309.272464][ T7596] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 309.272491][ T7596] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 309.272517][ T7596] ? rt_spin_unlock+0x160/0x200
[ 309.272544][ T7596] kobject_add_internal+0x631/0xd10
[ 309.272576][ T7596] kobject_init_and_add+0x12b/0x1a0
[ 309.272606][ T7596] ? __pfx_kobject_init_and_add+0x10/0x10
[ 309.272633][ T7596] ? __raw_spin_lock_init+0x45/0x100
[ 309.272667][ T7596] ? __init_swait_queue_head+0xa9/0x150
[ 309.272694][ T7596] gfs2_sys_fs_add+0x257/0x480
[ 309.272715][ T7596] ? is_dynamic_key+0x1ac/0x1c0
[ 309.272732][ T7596] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 309.272765][ T7596] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 309.272797][ T7596] gfs2_fill_super+0x141c/0x2220
[ 309.272830][ T7596] ? __pfx_gfs2_fill_super+0x10/0x10
[ 309.272847][ T7596] ? rt_spin_unlock+0x14f/0x200
[ 309.272874][ T7596] ? sb_set_blocksize+0x11b/0x210
[ 309.272894][ T7596] ? setup_bdev_super+0x4c1/0x5b0
[ 309.272928][ T7596] get_tree_bdev_flags+0x431/0x4f0
[ 309.272949][ T7596] ? __pfx_gfs2_fill_super+0x10/0x10
[ 309.272968][ T7596] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 309.272990][ T7596] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 309.273026][ T7596] gfs2_get_tree+0x51/0x1e0
[ 309.273048][ T7596] vfs_get_tree+0x92/0x2a0
[ 309.273076][ T7596] do_new_mount+0x341/0xd30
[ 309.273095][ T7596] ? apparmor_capable+0x126/0x170
[ 309.273122][ T7596] ? __pfx_do_new_mount+0x10/0x10
[ 309.273143][ T7596] ? ns_capable+0x89/0xe0
[ 309.273170][ T7596] ? user_path_at+0xd4/0x160
[ 309.273197][ T7596] ? user_path_at+0xd4/0x160
[ 309.273222][ T7596] __se_sys_mount+0x31d/0x420
[ 309.273249][ T7596] ? __pfx___se_sys_mount+0x10/0x10
[ 309.273276][ T7596] ? __x64_sys_mount+0x20/0xc0
[ 309.273297][ T7596] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 309.273317][ T7596] do_syscall_64+0x15f/0xf80
[ 309.273337][ T7596] ? trace_irq_disable+0x3b/0x140
[ 309.273363][ T7596] ? clear_bhb_loop+0x40/0x90
[ 309.273383][ T7596] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 309.273401][ T7596] RIP: 0033:0x7fbd28b9b5ca
[ 309.273419][ T7596] 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
[ 309.273436][ T7596] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 309.273456][ T7596] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 309.273470][ T7596] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 309.273483][ T7596] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 309.273496][ T7596] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 309.273508][ T7596] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 309.273538][ T7596]
[ 309.279098][ T7596] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 309.279119][ T7596] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 309.747089][ T7600] loop5: detected capacity change from 0 to 32768
[ 309.765315][ T7600] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 309.765337][ T7600] CPU: 0 UID: 0 PID: 7600 Comm: syz.5.217 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 309.765357][ T7600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 309.765369][ T7600] Call Trace:
[ 309.765376][ T7600]
[ 309.765385][ T7600] dump_stack_lvl+0xe8/0x150
[ 309.765414][ T7600] sysfs_create_dir_ns+0x271/0x2a0
[ 309.765437][ T7600] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 309.765466][ T7600] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 309.765491][ T7600] ? rt_spin_unlock+0x160/0x200
[ 309.765519][ T7600] kobject_add_internal+0x631/0xd10
[ 309.765550][ T7600] kobject_init_and_add+0x12b/0x1a0
[ 309.765589][ T7600] ? __pfx_kobject_init_and_add+0x10/0x10
[ 309.765615][ T7600] ? __raw_spin_lock_init+0x45/0x100
[ 309.765643][ T7600] ? __init_swait_queue_head+0xa9/0x150
[ 309.765673][ T7600] gfs2_sys_fs_add+0x257/0x480
[ 309.765696][ T7600] ? is_dynamic_key+0x1ac/0x1c0
[ 309.765716][ T7600] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 309.765747][ T7600] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 309.765784][ T7600] gfs2_fill_super+0x141c/0x2220
[ 309.765826][ T7600] ? __pfx_gfs2_fill_super+0x10/0x10
[ 309.765844][ T7600] ? rt_spin_unlock+0x14f/0x200
[ 309.765873][ T7600] ? sb_set_blocksize+0x11b/0x210
[ 309.765895][ T7600] ? setup_bdev_super+0x4c1/0x5b0
[ 309.765923][ T7600] get_tree_bdev_flags+0x431/0x4f0
[ 309.765949][ T7600] ? __pfx_gfs2_fill_super+0x10/0x10
[ 309.765968][ T7600] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 309.765990][ T7600] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 309.766025][ T7600] gfs2_get_tree+0x51/0x1e0
[ 309.766047][ T7600] vfs_get_tree+0x92/0x2a0
[ 309.766073][ T7600] do_new_mount+0x341/0xd30
[ 309.766091][ T7600] ? apparmor_capable+0x126/0x170
[ 309.766115][ T7600] ? __pfx_do_new_mount+0x10/0x10
[ 309.766134][ T7600] ? ns_capable+0x89/0xe0
[ 309.766160][ T7600] ? user_path_at+0xd4/0x160
[ 309.766187][ T7600] ? user_path_at+0xd4/0x160
[ 309.766212][ T7600] __se_sys_mount+0x31d/0x420
[ 309.766239][ T7600] ? __pfx___se_sys_mount+0x10/0x10
[ 309.766267][ T7600] ? __x64_sys_mount+0x20/0xc0
[ 309.766287][ T7600] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 309.766308][ T7600] do_syscall_64+0x15f/0xf80
[ 309.766329][ T7600] ? trace_irq_disable+0x3b/0x140
[ 309.766354][ T7600] ? clear_bhb_loop+0x40/0x90
[ 309.766376][ T7600] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 309.766394][ T7600] RIP: 0033:0x7f523924b5ca
[ 309.766412][ T7600] 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
[ 309.766428][ T7600] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 309.766449][ T7600] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 309.766462][ T7600] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 309.766475][ T7600] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 309.766488][ T7600] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 309.766500][ T7600] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 309.766531][ T7600]
[ 309.768076][ T7600] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 309.768094][ T7600] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 309.953150][ T6798] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 310.151954][ T7604] loop2: detected capacity change from 0 to 32768
[ 310.213652][ T7604] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 310.213676][ T7604] CPU: 1 UID: 0 PID: 7604 Comm: syz.2.219 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 310.213697][ T7604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 310.213707][ T7604] Call Trace:
[ 310.213715][ T7604]
[ 310.213723][ T7604] dump_stack_lvl+0xe8/0x150
[ 310.213748][ T7604] sysfs_create_dir_ns+0x271/0x2a0
[ 310.213771][ T7604] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 310.213799][ T7604] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 310.213834][ T7604] ? rt_spin_unlock+0x160/0x200
[ 310.213861][ T7604] kobject_add_internal+0x631/0xd10
[ 310.213894][ T7604] kobject_init_and_add+0x12b/0x1a0
[ 310.213923][ T7604] ? __pfx_kobject_init_and_add+0x10/0x10
[ 310.213948][ T7604] ? __raw_spin_lock_init+0x45/0x100
[ 310.213975][ T7604] ? __init_swait_queue_head+0xa9/0x150
[ 310.214005][ T7604] gfs2_sys_fs_add+0x257/0x480
[ 310.214027][ T7604] ? is_dynamic_key+0x1ac/0x1c0
[ 310.214046][ T7604] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 310.214076][ T7604] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 310.214111][ T7604] gfs2_fill_super+0x141c/0x2220
[ 310.214148][ T7604] ? __pfx_gfs2_fill_super+0x10/0x10
[ 310.214165][ T7604] ? rt_spin_unlock+0x14f/0x200
[ 310.214194][ T7604] ? sb_set_blocksize+0x11b/0x210
[ 310.214219][ T7604] ? setup_bdev_super+0x4c1/0x5b0
[ 310.214248][ T7604] get_tree_bdev_flags+0x431/0x4f0
[ 310.214274][ T7604] ? __pfx_gfs2_fill_super+0x10/0x10
[ 310.214293][ T7604] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 310.214316][ T7604] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 310.214352][ T7604] gfs2_get_tree+0x51/0x1e0
[ 310.214375][ T7604] vfs_get_tree+0x92/0x2a0
[ 310.214403][ T7604] do_new_mount+0x341/0xd30
[ 310.214423][ T7604] ? apparmor_capable+0x126/0x170
[ 310.214449][ T7604] ? __pfx_do_new_mount+0x10/0x10
[ 310.214471][ T7604] ? ns_capable+0x89/0xe0
[ 310.214498][ T7604] ? user_path_at+0xd4/0x160
[ 310.214525][ T7604] ? user_path_at+0xd4/0x160
[ 310.214551][ T7604] __se_sys_mount+0x31d/0x420
[ 310.214578][ T7604] ? __pfx___se_sys_mount+0x10/0x10
[ 310.214606][ T7604] ? __x64_sys_mount+0x20/0xc0
[ 310.214626][ T7604] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 310.214646][ T7604] do_syscall_64+0x15f/0xf80
[ 310.214666][ T7604] ? trace_irq_disable+0x3b/0x140
[ 310.214692][ T7604] ? clear_bhb_loop+0x40/0x90
[ 310.214714][ T7604] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 310.214732][ T7604] RIP: 0033:0x7ff71f8cb5ca
[ 310.214750][ T7604] 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
[ 310.214766][ T7604] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 310.214786][ T7604] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 310.214799][ T7604] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 310.214819][ T7604] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 310.214832][ T7604] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 310.214845][ T7604] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 310.214875][ T7604]
[ 310.214911][ T7604] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 310.234505][ T7604] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 310.454740][ T7602] loop4: detected capacity change from 0 to 32768
[ 310.469413][ T7602] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 310.469442][ T7602] CPU: 1 UID: 0 PID: 7602 Comm: syz.4.218 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 310.469464][ T7602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 310.469474][ T7602] Call Trace:
[ 310.469482][ T7602]
[ 310.469489][ T7602] dump_stack_lvl+0xe8/0x150
[ 310.469518][ T7602] sysfs_create_dir_ns+0x271/0x2a0
[ 310.469541][ T7602] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 310.469571][ T7602] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 310.469593][ T7602] ? rt_spin_unlock+0x160/0x200
[ 310.469619][ T7602] kobject_add_internal+0x631/0xd10
[ 310.469648][ T7602] kobject_init_and_add+0x12b/0x1a0
[ 310.469676][ T7602] ? __pfx_kobject_init_and_add+0x10/0x10
[ 310.469701][ T7602] ? __raw_spin_lock_init+0x45/0x100
[ 310.469728][ T7602] ? __init_swait_queue_head+0xa9/0x150
[ 310.469756][ T7602] gfs2_sys_fs_add+0x257/0x480
[ 310.469774][ T7602] ? is_dynamic_key+0x1ac/0x1c0
[ 310.469791][ T7602] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 310.469817][ T7602] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 310.469845][ T7602] gfs2_fill_super+0x141c/0x2220
[ 310.469879][ T7602] ? __pfx_gfs2_fill_super+0x10/0x10
[ 310.469897][ T7602] ? rt_spin_unlock+0x14f/0x200
[ 310.469925][ T7602] ? sb_set_blocksize+0x11b/0x210
[ 310.469946][ T7602] ? setup_bdev_super+0x4c1/0x5b0
[ 310.469975][ T7602] get_tree_bdev_flags+0x431/0x4f0
[ 310.470000][ T7602] ? __pfx_gfs2_fill_super+0x10/0x10
[ 310.470170][ T7602] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 310.470194][ T7602] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 310.470229][ T7602] gfs2_get_tree+0x51/0x1e0
[ 310.470253][ T7602] vfs_get_tree+0x92/0x2a0
[ 310.470279][ T7602] do_new_mount+0x341/0xd30
[ 310.470299][ T7602] ? apparmor_capable+0x126/0x170
[ 310.470325][ T7602] ? __pfx_do_new_mount+0x10/0x10
[ 310.470345][ T7602] ? ns_capable+0x89/0xe0
[ 310.470373][ T7602] ? user_path_at+0xd4/0x160
[ 310.470399][ T7602] ? user_path_at+0xd4/0x160
[ 310.470424][ T7602] __se_sys_mount+0x31d/0x420
[ 310.470450][ T7602] ? __pfx___se_sys_mount+0x10/0x10
[ 310.470478][ T7602] ? __x64_sys_mount+0x20/0xc0
[ 310.470496][ T7602] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 310.470514][ T7602] do_syscall_64+0x15f/0xf80
[ 310.470533][ T7602] ? trace_irq_disable+0x3b/0x140
[ 310.470557][ T7602] ? clear_bhb_loop+0x40/0x90
[ 310.470579][ T7602] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 310.470598][ T7602] RIP: 0033:0x7fd5f95bb5ca
[ 310.470616][ T7602] 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
[ 310.470632][ T7602] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 310.470651][ T7602] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 310.470666][ T7602] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 310.470677][ T7602] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 310.470688][ T7602] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 310.470701][ T7602] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 310.470730][ T7602]
[ 310.494916][ T7602] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 310.494936][ T7602] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 310.689882][ T6799] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 311.138709][ T7110] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 311.333862][ T7608] loop3: detected capacity change from 0 to 32768
[ 311.393304][ T7608] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 311.393327][ T7608] CPU: 1 UID: 0 PID: 7608 Comm: syz.3.220 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 311.393346][ T7608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 311.393355][ T7608] Call Trace:
[ 311.393362][ T7608]
[ 311.393369][ T7608] dump_stack_lvl+0xe8/0x150
[ 311.393397][ T7608] sysfs_create_dir_ns+0x271/0x2a0
[ 311.393420][ T7608] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 311.393446][ T7608] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 311.393469][ T7608] ? rt_spin_unlock+0x160/0x200
[ 311.393492][ T7608] kobject_add_internal+0x631/0xd10
[ 311.393523][ T7608] kobject_init_and_add+0x12b/0x1a0
[ 311.393551][ T7608] ? __pfx_kobject_init_and_add+0x10/0x10
[ 311.393573][ T7608] ? __raw_spin_lock_init+0x45/0x100
[ 311.393597][ T7608] ? __init_swait_queue_head+0xa9/0x150
[ 311.393625][ T7608] gfs2_sys_fs_add+0x257/0x480
[ 311.393647][ T7608] ? is_dynamic_key+0x1ac/0x1c0
[ 311.393667][ T7608] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 311.393709][ T7608] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 311.393741][ T7608] gfs2_fill_super+0x141c/0x2220
[ 311.393777][ T7608] ? __pfx_gfs2_fill_super+0x10/0x10
[ 311.393797][ T7608] ? rt_spin_unlock+0x14f/0x200
[ 311.393828][ T7608] ? sb_set_blocksize+0x11b/0x210
[ 311.393850][ T7608] ? setup_bdev_super+0x4c1/0x5b0
[ 311.393879][ T7608] get_tree_bdev_flags+0x431/0x4f0
[ 311.393912][ T7608] ? __pfx_gfs2_fill_super+0x10/0x10
[ 311.393929][ T7608] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 311.393952][ T7608] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 311.393995][ T7608] gfs2_get_tree+0x51/0x1e0
[ 311.394018][ T7608] vfs_get_tree+0x92/0x2a0
[ 311.394045][ T7608] do_new_mount+0x341/0xd30
[ 311.394065][ T7608] ? apparmor_capable+0x126/0x170
[ 311.394092][ T7608] ? __pfx_do_new_mount+0x10/0x10
[ 311.394113][ T7608] ? ns_capable+0x89/0xe0
[ 311.394141][ T7608] ? user_path_at+0xd4/0x160
[ 311.394169][ T7608] ? user_path_at+0xd4/0x160
[ 311.394194][ T7608] __se_sys_mount+0x31d/0x420
[ 311.394222][ T7608] ? __pfx___se_sys_mount+0x10/0x10
[ 311.394250][ T7608] ? __x64_sys_mount+0x20/0xc0
[ 311.394270][ T7608] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 311.394291][ T7608] do_syscall_64+0x15f/0xf80
[ 311.394312][ T7608] ? trace_irq_disable+0x3b/0x140
[ 311.394337][ T7608] ? clear_bhb_loop+0x40/0x90
[ 311.394358][ T7608] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 311.394377][ T7608] RIP: 0033:0x7f4354b3b5ca
[ 311.394395][ T7608] 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
[ 311.394411][ T7608] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 311.394431][ T7608] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 311.394445][ T7608] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 311.394459][ T7608] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 311.394472][ T7608] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 311.394484][ T7608] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 311.394514][ T7608]
[ 311.394706][ T7608] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 311.394721][ T7608] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 311.479027][ T6792] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 312.135813][ T6812] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 312.574682][ T7618] loop5: detected capacity change from 0 to 32768
[ 312.589902][ T7618] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 312.589923][ T7618] CPU: 1 UID: 0 PID: 7618 Comm: syz.5.222 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 312.589949][ T7618] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 312.589960][ T7618] Call Trace:
[ 312.589968][ T7618]
[ 312.589976][ T7618] dump_stack_lvl+0xe8/0x150
[ 312.590006][ T7618] sysfs_create_dir_ns+0x271/0x2a0
[ 312.590029][ T7618] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 312.590057][ T7618] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 312.590084][ T7618] ? rt_spin_unlock+0x160/0x200
[ 312.590112][ T7618] kobject_add_internal+0x631/0xd10
[ 312.590144][ T7618] kobject_init_and_add+0x12b/0x1a0
[ 312.590175][ T7618] ? __pfx_kobject_init_and_add+0x10/0x10
[ 312.590202][ T7618] ? __raw_spin_lock_init+0x45/0x100
[ 312.590229][ T7618] ? __init_swait_queue_head+0xa9/0x150
[ 312.590258][ T7618] gfs2_sys_fs_add+0x257/0x480
[ 312.590281][ T7618] ? is_dynamic_key+0x1ac/0x1c0
[ 312.590302][ T7618] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 312.590334][ T7618] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 312.590368][ T7618] gfs2_fill_super+0x141c/0x2220
[ 312.590403][ T7618] ? __pfx_gfs2_fill_super+0x10/0x10
[ 312.590421][ T7618] ? rt_spin_unlock+0x14f/0x200
[ 312.590450][ T7618] ? sb_set_blocksize+0x11b/0x210
[ 312.590472][ T7618] ? setup_bdev_super+0x4c1/0x5b0
[ 312.590501][ T7618] get_tree_bdev_flags+0x431/0x4f0
[ 312.590527][ T7618] ? __pfx_gfs2_fill_super+0x10/0x10
[ 312.590546][ T7618] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 312.590569][ T7618] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 312.590606][ T7618] gfs2_get_tree+0x51/0x1e0
[ 312.590629][ T7618] vfs_get_tree+0x92/0x2a0
[ 312.590656][ T7618] do_new_mount+0x341/0xd30
[ 312.590675][ T7618] ? apparmor_capable+0x126/0x170
[ 312.590701][ T7618] ? __pfx_do_new_mount+0x10/0x10
[ 312.590723][ T7618] ? ns_capable+0x89/0xe0
[ 312.590751][ T7618] ? user_path_at+0xd4/0x160
[ 312.590778][ T7618] ? user_path_at+0xd4/0x160
[ 312.590803][ T7618] __se_sys_mount+0x31d/0x420
[ 312.590837][ T7618] ? __pfx___se_sys_mount+0x10/0x10
[ 312.590866][ T7618] ? __x64_sys_mount+0x20/0xc0
[ 312.590886][ T7618] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 312.590907][ T7618] do_syscall_64+0x15f/0xf80
[ 312.590928][ T7618] ? trace_irq_disable+0x3b/0x140
[ 312.590954][ T7618] ? clear_bhb_loop+0x40/0x90
[ 312.590976][ T7618] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 312.590995][ T7618] RIP: 0033:0x7f523924b5ca
[ 312.591014][ T7618] 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
[ 312.591030][ T7618] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 312.591050][ T7618] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 312.591064][ T7618] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 312.591078][ T7618] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 312.591091][ T7618] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 312.591103][ T7618] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 312.591134][ T7618]
[ 312.594773][ T7618] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 312.594794][ T7618] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 312.987514][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
2026/05/08 01:07:58 executed programs: 220
[ 313.567866][ T7633] loop3: detected capacity change from 0 to 32768
[ 313.598139][ T7633] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 313.598162][ T7633] CPU: 1 UID: 0 PID: 7633 Comm: syz.3.225 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 313.598183][ T7633] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 313.598195][ T7633] Call Trace:
[ 313.598202][ T7633]
[ 313.598211][ T7633] dump_stack_lvl+0xe8/0x150
[ 313.598239][ T7633] sysfs_create_dir_ns+0x271/0x2a0
[ 313.598262][ T7633] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 313.598290][ T7633] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 313.598315][ T7633] ? rt_spin_unlock+0x160/0x200
[ 313.598342][ T7633] kobject_add_internal+0x631/0xd10
[ 313.598375][ T7633] kobject_init_and_add+0x12b/0x1a0
[ 313.598405][ T7633] ? __pfx_kobject_init_and_add+0x10/0x10
[ 313.598431][ T7633] ? __raw_spin_lock_init+0x45/0x100
[ 313.598459][ T7633] ? __init_swait_queue_head+0xa9/0x150
[ 313.598488][ T7633] gfs2_sys_fs_add+0x257/0x480
[ 313.598510][ T7633] ? is_dynamic_key+0x1ac/0x1c0
[ 313.598530][ T7633] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 313.598634][ T7633] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 313.598671][ T7633] gfs2_fill_super+0x141c/0x2220
[ 313.598707][ T7633] ? __pfx_gfs2_fill_super+0x10/0x10
[ 313.598745][ T7633] ? rt_spin_unlock+0x14f/0x200
[ 313.598777][ T7633] ? sb_set_blocksize+0x11b/0x210
[ 313.598799][ T7633] ? setup_bdev_super+0x4c1/0x5b0
[ 313.598826][ T7633] get_tree_bdev_flags+0x431/0x4f0
[ 313.598849][ T7633] ? __pfx_gfs2_fill_super+0x10/0x10
[ 313.598868][ T7633] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 313.598892][ T7633] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 313.598927][ T7633] gfs2_get_tree+0x51/0x1e0
[ 313.598949][ T7633] vfs_get_tree+0x92/0x2a0
[ 313.598975][ T7633] do_new_mount+0x341/0xd30
[ 313.598995][ T7633] ? apparmor_capable+0x126/0x170
[ 313.599020][ T7633] ? __pfx_do_new_mount+0x10/0x10
[ 313.599040][ T7633] ? ns_capable+0x89/0xe0
[ 313.599067][ T7633] ? user_path_at+0xd4/0x160
[ 313.599095][ T7633] ? user_path_at+0xd4/0x160
[ 313.599122][ T7633] __se_sys_mount+0x31d/0x420
[ 313.599149][ T7633] ? __pfx___se_sys_mount+0x10/0x10
[ 313.599178][ T7633] ? __x64_sys_mount+0x20/0xc0
[ 313.599201][ T7633] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 313.599222][ T7633] do_syscall_64+0x15f/0xf80
[ 313.599244][ T7633] ? trace_irq_disable+0x3b/0x140
[ 313.599270][ T7633] ? clear_bhb_loop+0x40/0x90
[ 313.599292][ T7633] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 313.599311][ T7633] RIP: 0033:0x7f4354b3b5ca
[ 313.599330][ T7633] 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
[ 313.599346][ T7633] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 313.599368][ T7633] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 313.599388][ T7633] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 313.599402][ T7633] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 313.599415][ T7633] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 313.599428][ T7633] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 313.599458][ T7633]
[ 313.611166][ T7633] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 313.611188][ T7633] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 313.955597][ T7628] loop4: detected capacity change from 0 to 32768
[ 314.043873][ T7628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 314.043896][ T7628] CPU: 1 UID: 0 PID: 7628 Comm: syz.4.224 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 314.043916][ T7628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 314.043931][ T7628] Call Trace:
[ 314.043939][ T7628]
[ 314.043948][ T7628] dump_stack_lvl+0xe8/0x150
[ 314.043977][ T7628] sysfs_create_dir_ns+0x271/0x2a0
[ 314.044001][ T7628] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 314.044029][ T7628] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 314.044055][ T7628] ? rt_spin_unlock+0x160/0x200
[ 314.044082][ T7628] kobject_add_internal+0x631/0xd10
[ 314.044115][ T7628] kobject_init_and_add+0x12b/0x1a0
[ 314.044157][ T7628] ? __pfx_kobject_init_and_add+0x10/0x10
[ 314.044184][ T7628] ? __raw_spin_lock_init+0x45/0x100
[ 314.044212][ T7628] ? __init_swait_queue_head+0xa9/0x150
[ 314.044241][ T7628] gfs2_sys_fs_add+0x257/0x480
[ 314.044263][ T7628] ? is_dynamic_key+0x1ac/0x1c0
[ 314.044283][ T7628] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 314.044314][ T7628] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 314.044349][ T7628] gfs2_fill_super+0x141c/0x2220
[ 314.044384][ T7628] ? __pfx_gfs2_fill_super+0x10/0x10
[ 314.044399][ T7628] ? rt_spin_unlock+0x14f/0x200
[ 314.044424][ T7628] ? sb_set_blocksize+0x11b/0x210
[ 314.044445][ T7628] ? setup_bdev_super+0x4c1/0x5b0
[ 314.044481][ T7628] get_tree_bdev_flags+0x431/0x4f0
[ 314.044508][ T7628] ? __pfx_gfs2_fill_super+0x10/0x10
[ 314.044528][ T7628] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 314.044555][ T7628] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 314.044591][ T7628] gfs2_get_tree+0x51/0x1e0
[ 314.044614][ T7628] vfs_get_tree+0x92/0x2a0
[ 314.044643][ T7628] do_new_mount+0x341/0xd30
[ 314.044663][ T7628] ? apparmor_capable+0x126/0x170
[ 314.044690][ T7628] ? __pfx_do_new_mount+0x10/0x10
[ 314.044709][ T7628] ? ns_capable+0x89/0xe0
[ 314.044735][ T7628] ? user_path_at+0xd4/0x160
[ 314.044763][ T7628] ? user_path_at+0xd4/0x160
[ 314.044788][ T7628] __se_sys_mount+0x31d/0x420
[ 314.044816][ T7628] ? __pfx___se_sys_mount+0x10/0x10
[ 314.044844][ T7628] ? __x64_sys_mount+0x20/0xc0
[ 314.044864][ T7628] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 314.044885][ T7628] do_syscall_64+0x15f/0xf80
[ 314.044905][ T7628] ? trace_irq_disable+0x3b/0x140
[ 314.044931][ T7628] ? clear_bhb_loop+0x40/0x90
[ 314.044953][ T7628] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 314.044971][ T7628] RIP: 0033:0x7fd5f95bb5ca
[ 314.044989][ T7628] 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
[ 314.045005][ T7628] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 314.045025][ T7628] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 314.045039][ T7628] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 314.045052][ T7628] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 314.045064][ T7628] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 314.045077][ T7628] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 314.045106][ T7628]
[ 314.067219][ T7628] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 314.067242][ T7628] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 314.172090][ T6798] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 314.767629][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 315.279456][ T7638] loop5: detected capacity change from 0 to 32768
[ 315.291464][ T7638] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 315.291487][ T7638] CPU: 1 UID: 0 PID: 7638 Comm: syz.5.226 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 315.291509][ T7638] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 315.291519][ T7638] Call Trace:
[ 315.291530][ T7638]
[ 315.291539][ T7638] dump_stack_lvl+0xe8/0x150
[ 315.291569][ T7638] sysfs_create_dir_ns+0x271/0x2a0
[ 315.291593][ T7638] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 315.291620][ T7638] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 315.291645][ T7638] ? rt_spin_unlock+0x160/0x200
[ 315.291672][ T7638] kobject_add_internal+0x631/0xd10
[ 315.291705][ T7638] kobject_init_and_add+0x12b/0x1a0
[ 315.291735][ T7638] ? __pfx_kobject_init_and_add+0x10/0x10
[ 315.291760][ T7638] ? __raw_spin_lock_init+0x45/0x100
[ 315.291788][ T7638] ? __init_swait_queue_head+0xa9/0x150
[ 315.291818][ T7638] gfs2_sys_fs_add+0x257/0x480
[ 315.291840][ T7638] ? is_dynamic_key+0x1ac/0x1c0
[ 315.291860][ T7638] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 315.291892][ T7638] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 315.291926][ T7638] gfs2_fill_super+0x141c/0x2220
[ 315.291960][ T7638] ? __pfx_gfs2_fill_super+0x10/0x10
[ 315.291978][ T7638] ? rt_spin_unlock+0x14f/0x200
[ 315.292006][ T7638] ? sb_set_blocksize+0x11b/0x210
[ 315.292028][ T7638] ? setup_bdev_super+0x4c1/0x5b0
[ 315.292056][ T7638] get_tree_bdev_flags+0x431/0x4f0
[ 315.292082][ T7638] ? __pfx_gfs2_fill_super+0x10/0x10
[ 315.292101][ T7638] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 315.292125][ T7638] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 315.292161][ T7638] gfs2_get_tree+0x51/0x1e0
[ 315.292184][ T7638] vfs_get_tree+0x92/0x2a0
[ 315.292211][ T7638] do_new_mount+0x341/0xd30
[ 315.292230][ T7638] ? apparmor_capable+0x126/0x170
[ 315.292257][ T7638] ? __pfx_do_new_mount+0x10/0x10
[ 315.292278][ T7638] ? ns_capable+0x89/0xe0
[ 315.292306][ T7638] ? user_path_at+0xd4/0x160
[ 315.292332][ T7638] ? user_path_at+0xd4/0x160
[ 315.292358][ T7638] __se_sys_mount+0x31d/0x420
[ 315.292391][ T7638] ? __pfx___se_sys_mount+0x10/0x10
[ 315.292418][ T7638] ? __x64_sys_mount+0x20/0xc0
[ 315.292438][ T7638] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 315.292459][ T7638] do_syscall_64+0x15f/0xf80
[ 315.292479][ T7638] ? trace_irq_disable+0x3b/0x140
[ 315.292505][ T7638] ? clear_bhb_loop+0x40/0x90
[ 315.292527][ T7638] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 315.292545][ T7638] RIP: 0033:0x7f523924b5ca
[ 315.292564][ T7638] 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
[ 315.292580][ T7638] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 315.292600][ T7638] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 315.292614][ T7638] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 315.292627][ T7638] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 315.292640][ T7638] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 315.292653][ T7638] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 315.292684][ T7638]
[ 315.301564][ T7638] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 315.301585][ T7638] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 315.612161][ T7640] loop0: detected capacity change from 0 to 32768
[ 315.640727][ T7640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 315.640748][ T7640] CPU: 1 UID: 0 PID: 7640 Comm: syz.0.227 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 315.640768][ T7640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 315.640779][ T7640] Call Trace:
[ 315.640786][ T7640]
[ 315.640794][ T7640] dump_stack_lvl+0xe8/0x150
[ 315.640821][ T7640] sysfs_create_dir_ns+0x271/0x2a0
[ 315.640844][ T7640] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 315.640872][ T7640] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 315.640897][ T7640] ? rt_spin_unlock+0x160/0x200
[ 315.640923][ T7640] kobject_add_internal+0x631/0xd10
[ 315.640958][ T7640] kobject_init_and_add+0x12b/0x1a0
[ 315.640987][ T7640] ? __pfx_kobject_init_and_add+0x10/0x10
[ 315.641013][ T7640] ? __raw_spin_lock_init+0x45/0x100
[ 315.641039][ T7640] ? __init_swait_queue_head+0xa9/0x150
[ 315.641068][ T7640] gfs2_sys_fs_add+0x257/0x480
[ 315.641090][ T7640] ? is_dynamic_key+0x1ac/0x1c0
[ 315.641109][ T7640] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 315.641138][ T7640] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 315.641170][ T7640] gfs2_fill_super+0x141c/0x2220
[ 315.641204][ T7640] ? __pfx_gfs2_fill_super+0x10/0x10
[ 315.641221][ T7640] ? rt_spin_unlock+0x14f/0x200
[ 315.641250][ T7640] ? sb_set_blocksize+0x11b/0x210
[ 315.641270][ T7640] ? setup_bdev_super+0x4c1/0x5b0
[ 315.641298][ T7640] get_tree_bdev_flags+0x431/0x4f0
[ 315.641324][ T7640] ? __pfx_gfs2_fill_super+0x10/0x10
[ 315.641342][ T7640] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 315.641364][ T7640] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 315.641398][ T7640] gfs2_get_tree+0x51/0x1e0
[ 315.641420][ T7640] vfs_get_tree+0x92/0x2a0
[ 315.641448][ T7640] do_new_mount+0x341/0xd30
[ 315.641466][ T7640] ? apparmor_capable+0x126/0x170
[ 315.641492][ T7640] ? __pfx_do_new_mount+0x10/0x10
[ 315.641513][ T7640] ? ns_capable+0x89/0xe0
[ 315.641540][ T7640] ? user_path_at+0xd4/0x160
[ 315.641565][ T7640] ? user_path_at+0xd4/0x160
[ 315.641593][ T7640] __se_sys_mount+0x31d/0x420
[ 315.641625][ T7640] ? __pfx___se_sys_mount+0x10/0x10
[ 315.641652][ T7640] ? __x64_sys_mount+0x20/0xc0
[ 315.641670][ T7640] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 315.641689][ T7640] do_syscall_64+0x15f/0xf80
[ 315.641708][ T7640] ? trace_irq_disable+0x3b/0x140
[ 315.641734][ T7640] ? clear_bhb_loop+0x40/0x90
[ 315.641756][ T7640] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 315.641774][ T7640] RIP: 0033:0x7fbd28b9b5ca
[ 315.641791][ T7640] 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
[ 315.641806][ T7640] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 315.641826][ T7640] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 315.641839][ T7640] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 315.641852][ T7640] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 315.641865][ T7640] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 315.641877][ T7640] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 315.641905][ T7640]
[ 315.744857][ T7640] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 315.744878][ T7640] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 315.968191][ T6798] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 316.142149][ T6799] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 316.311288][ T7648] loop4: detected capacity change from 0 to 32768
[ 316.389449][ T7648] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 316.389471][ T7648] CPU: 1 UID: 0 PID: 7648 Comm: syz.4.229 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 316.389491][ T7648] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 316.389502][ T7648] Call Trace:
[ 316.389510][ T7648]
[ 316.389518][ T7648] dump_stack_lvl+0xe8/0x150
[ 316.389545][ T7648] sysfs_create_dir_ns+0x271/0x2a0
[ 316.389570][ T7648] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 316.389595][ T7648] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 316.389619][ T7648] ? rt_spin_unlock+0x160/0x200
[ 316.389644][ T7648] kobject_add_internal+0x631/0xd10
[ 316.389674][ T7648] kobject_init_and_add+0x12b/0x1a0
[ 316.389704][ T7648] ? __pfx_kobject_init_and_add+0x10/0x10
[ 316.389730][ T7648] ? __raw_spin_lock_init+0x45/0x100
[ 316.389758][ T7648] ? __init_swait_queue_head+0xa9/0x150
[ 316.389787][ T7648] gfs2_sys_fs_add+0x257/0x480
[ 316.389811][ T7648] ? is_dynamic_key+0x1ac/0x1c0
[ 316.389830][ T7648] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 316.389862][ T7648] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 316.389896][ T7648] gfs2_fill_super+0x141c/0x2220
[ 316.389932][ T7648] ? __pfx_gfs2_fill_super+0x10/0x10
[ 316.389949][ T7648] ? rt_spin_unlock+0x14f/0x200
[ 316.389978][ T7648] ? sb_set_blocksize+0x11b/0x210
[ 316.390000][ T7648] ? setup_bdev_super+0x4c1/0x5b0
[ 316.390029][ T7648] get_tree_bdev_flags+0x431/0x4f0
[ 316.390055][ T7648] ? __pfx_gfs2_fill_super+0x10/0x10
[ 316.390074][ T7648] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 316.390098][ T7648] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 316.390133][ T7648] gfs2_get_tree+0x51/0x1e0
[ 316.390156][ T7648] vfs_get_tree+0x92/0x2a0
[ 316.390184][ T7648] do_new_mount+0x341/0xd30
[ 316.390203][ T7648] ? apparmor_capable+0x126/0x170
[ 316.390230][ T7648] ? __pfx_do_new_mount+0x10/0x10
[ 316.390251][ T7648] ? ns_capable+0x89/0xe0
[ 316.390279][ T7648] ? user_path_at+0xd4/0x160
[ 316.390306][ T7648] ? user_path_at+0xd4/0x160
[ 316.390331][ T7648] __se_sys_mount+0x31d/0x420
[ 316.390365][ T7648] ? __pfx___se_sys_mount+0x10/0x10
[ 316.390392][ T7648] ? __x64_sys_mount+0x20/0xc0
[ 316.390413][ T7648] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 316.390433][ T7648] do_syscall_64+0x15f/0xf80
[ 316.390454][ T7648] ? trace_irq_disable+0x3b/0x140
[ 316.390480][ T7648] ? clear_bhb_loop+0x40/0x90
[ 316.390502][ T7648] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 316.390520][ T7648] RIP: 0033:0x7fd5f95bb5ca
[ 316.390539][ T7648] 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
[ 316.390554][ T7648] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 316.390575][ T7648] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 316.390590][ T7648] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 316.390602][ T7648] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 316.390615][ T7648] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 316.390627][ T7648] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 316.390657][ T7648]
[ 316.394346][ T7648] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 316.394367][ T7648] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 316.548254][ T7646] loop3: detected capacity change from 0 to 32768
[ 316.756710][ T7646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 316.756729][ T7646] CPU: 1 UID: 0 PID: 7646 Comm: syz.3.228 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 316.756745][ T7646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 316.756754][ T7646] Call Trace:
[ 316.756761][ T7646]
[ 316.756768][ T7646] dump_stack_lvl+0xe8/0x150
[ 316.756796][ T7646] sysfs_create_dir_ns+0x271/0x2a0
[ 316.756816][ T7646] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 316.756842][ T7646] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 316.756862][ T7646] ? rt_spin_unlock+0x160/0x200
[ 316.756884][ T7646] kobject_add_internal+0x631/0xd10
[ 316.756910][ T7646] kobject_init_and_add+0x12b/0x1a0
[ 316.756933][ T7646] ? __pfx_kobject_init_and_add+0x10/0x10
[ 316.756952][ T7646] ? __raw_spin_lock_init+0x45/0x100
[ 316.756973][ T7646] ? __init_swait_queue_head+0xa9/0x150
[ 316.756996][ T7646] gfs2_sys_fs_add+0x257/0x480
[ 316.757014][ T7646] ? is_dynamic_key+0x1ac/0x1c0
[ 316.757028][ T7646] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 316.757052][ T7646] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 316.757083][ T7646] gfs2_fill_super+0x141c/0x2220
[ 316.757118][ T7646] ? __pfx_gfs2_fill_super+0x10/0x10
[ 316.757134][ T7646] ? rt_spin_unlock+0x14f/0x200
[ 316.757159][ T7646] ? sb_set_blocksize+0x11b/0x210
[ 316.757187][ T7646] ? setup_bdev_super+0x4c1/0x5b0
[ 316.757214][ T7646] get_tree_bdev_flags+0x431/0x4f0
[ 316.757272][ T7646] ? __pfx_gfs2_fill_super+0x10/0x10
[ 316.757291][ T7646] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 316.757311][ T7646] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 316.757346][ T7646] gfs2_get_tree+0x51/0x1e0
[ 316.757365][ T7646] vfs_get_tree+0x92/0x2a0
[ 316.757390][ T7646] do_new_mount+0x341/0xd30
[ 316.757408][ T7646] ? apparmor_capable+0x126/0x170
[ 316.757433][ T7646] ? __pfx_do_new_mount+0x10/0x10
[ 316.757451][ T7646] ? ns_capable+0x89/0xe0
[ 316.757476][ T7646] ? user_path_at+0xd4/0x160
[ 316.757509][ T7646] ? user_path_at+0xd4/0x160
[ 316.757534][ T7646] __se_sys_mount+0x31d/0x420
[ 316.757562][ T7646] ? __pfx___se_sys_mount+0x10/0x10
[ 316.757590][ T7646] ? __x64_sys_mount+0x20/0xc0
[ 316.757611][ T7646] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 316.757632][ T7646] do_syscall_64+0x15f/0xf80
[ 316.757652][ T7646] ? trace_irq_disable+0x3b/0x140
[ 316.757678][ T7646] ? clear_bhb_loop+0x40/0x90
[ 316.757701][ T7646] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 316.757719][ T7646] RIP: 0033:0x7f4354b3b5ca
[ 316.757738][ T7646] 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
[ 316.757754][ T7646] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 316.757775][ T7646] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 316.757789][ T7646] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 316.757803][ T7646] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 316.757815][ T7646] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 316.757828][ T7646] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 316.757859][ T7646]
[ 316.757900][ T7646] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 316.757915][ T7646] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 317.177554][ T7110] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 317.234931][ T6792] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 317.312074][ T1336] ieee802154 phy0 wpan0: encryption failed: -22
[ 317.312168][ T1336] ieee802154 phy1 wpan1: encryption failed: -22
[ 318.275083][ T7656] loop5: detected capacity change from 0 to 32768
[ 318.300783][ T7656] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 318.300806][ T7656] CPU: 1 UID: 0 PID: 7656 Comm: syz.5.231 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 318.300828][ T7656] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 318.300839][ T7656] Call Trace:
[ 318.300851][ T7656]
[ 318.300860][ T7656] dump_stack_lvl+0xe8/0x150
[ 318.300888][ T7656] sysfs_create_dir_ns+0x271/0x2a0
[ 318.300912][ T7656] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 318.300940][ T7656] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 318.300965][ T7656] ? rt_spin_unlock+0x160/0x200
[ 318.300993][ T7656] kobject_add_internal+0x631/0xd10
[ 318.301026][ T7656] kobject_init_and_add+0x12b/0x1a0
[ 318.301056][ T7656] ? __pfx_kobject_init_and_add+0x10/0x10
[ 318.301083][ T7656] ? __raw_spin_lock_init+0x45/0x100
[ 318.301120][ T7656] ? __init_swait_queue_head+0xa9/0x150
[ 318.301149][ T7656] gfs2_sys_fs_add+0x257/0x480
[ 318.301173][ T7656] ? is_dynamic_key+0x1ac/0x1c0
[ 318.301193][ T7656] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 318.301225][ T7656] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 318.301259][ T7656] gfs2_fill_super+0x141c/0x2220
[ 318.301295][ T7656] ? __pfx_gfs2_fill_super+0x10/0x10
[ 318.301312][ T7656] ? rt_spin_unlock+0x14f/0x200
[ 318.301342][ T7656] ? sb_set_blocksize+0x11b/0x210
[ 318.301363][ T7656] ? setup_bdev_super+0x4c1/0x5b0
[ 318.301392][ T7656] get_tree_bdev_flags+0x431/0x4f0
[ 318.301419][ T7656] ? __pfx_gfs2_fill_super+0x10/0x10
[ 318.301438][ T7656] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 318.301462][ T7656] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 318.301498][ T7656] gfs2_get_tree+0x51/0x1e0
[ 318.301521][ T7656] vfs_get_tree+0x92/0x2a0
[ 318.301548][ T7656] do_new_mount+0x341/0xd30
[ 318.301568][ T7656] ? apparmor_capable+0x126/0x170
[ 318.301594][ T7656] ? __pfx_do_new_mount+0x10/0x10
[ 318.301615][ T7656] ? ns_capable+0x89/0xe0
[ 318.301643][ T7656] ? user_path_at+0xd4/0x160
[ 318.301670][ T7656] ? user_path_at+0xd4/0x160
[ 318.301694][ T7656] __se_sys_mount+0x31d/0x420
[ 318.301721][ T7656] ? __pfx___se_sys_mount+0x10/0x10
[ 318.301749][ T7656] ? __x64_sys_mount+0x20/0xc0
[ 318.301768][ T7656] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 318.301787][ T7656] do_syscall_64+0x15f/0xf80
[ 318.301807][ T7656] ? trace_irq_disable+0x3b/0x140
[ 318.301832][ T7656] ? clear_bhb_loop+0x40/0x90
[ 318.301854][ T7656] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 318.301872][ T7656] RIP: 0033:0x7f523924b5ca
[ 318.301890][ T7656] 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
[ 318.301906][ T7656] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 318.301936][ T7656] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 318.301951][ T7656] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 318.301965][ T7656] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 318.301978][ T7656] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 318.301991][ T7656] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
2026/05/08 01:08:03 executed programs: 229
[ 318.302022][ T7656]
[ 318.302056][ T7656] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 318.302072][ T7656] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 318.887389][ T6799] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 319.008207][ T7666] loop3: detected capacity change from 0 to 32768
[ 319.033390][ T7666] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 319.033472][ T7666] CPU: 1 UID: 0 PID: 7666 Comm: syz.3.234 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 319.033494][ T7666] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 319.033505][ T7666] Call Trace:
[ 319.033514][ T7666]
[ 319.033522][ T7666] dump_stack_lvl+0xe8/0x150
[ 319.033551][ T7666] sysfs_create_dir_ns+0x271/0x2a0
[ 319.033575][ T7666] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 319.033603][ T7666] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 319.033628][ T7666] ? rt_spin_unlock+0x160/0x200
[ 319.033656][ T7666] kobject_add_internal+0x631/0xd10
[ 319.033689][ T7666] kobject_init_and_add+0x12b/0x1a0
[ 319.033719][ T7666] ? __pfx_kobject_init_and_add+0x10/0x10
[ 319.033746][ T7666] ? __raw_spin_lock_init+0x45/0x100
[ 319.033773][ T7666] ? __init_swait_queue_head+0xa9/0x150
[ 319.033801][ T7666] gfs2_sys_fs_add+0x257/0x480
[ 319.033824][ T7666] ? is_dynamic_key+0x1ac/0x1c0
[ 319.033844][ T7666] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 319.033876][ T7666] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 319.033910][ T7666] gfs2_fill_super+0x141c/0x2220
[ 319.033946][ T7666] ? __pfx_gfs2_fill_super+0x10/0x10
[ 319.033963][ T7666] ? rt_spin_unlock+0x14f/0x200
[ 319.033992][ T7666] ? sb_set_blocksize+0x11b/0x210
[ 319.034014][ T7666] ? setup_bdev_super+0x4c1/0x5b0
[ 319.034041][ T7666] get_tree_bdev_flags+0x431/0x4f0
[ 319.034067][ T7666] ? __pfx_gfs2_fill_super+0x10/0x10
[ 319.034086][ T7666] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 319.034109][ T7666] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 319.034145][ T7666] gfs2_get_tree+0x51/0x1e0
[ 319.034166][ T7666] vfs_get_tree+0x92/0x2a0
[ 319.034193][ T7666] do_new_mount+0x341/0xd30
[ 319.034212][ T7666] ? apparmor_capable+0x126/0x170
[ 319.034237][ T7666] ? __pfx_do_new_mount+0x10/0x10
[ 319.034258][ T7666] ? ns_capable+0x89/0xe0
[ 319.034295][ T7666] ? user_path_at+0xd4/0x160
[ 319.034323][ T7666] ? user_path_at+0xd4/0x160
[ 319.034348][ T7666] __se_sys_mount+0x31d/0x420
[ 319.034376][ T7666] ? __pfx___se_sys_mount+0x10/0x10
[ 319.034404][ T7666] ? __x64_sys_mount+0x20/0xc0
[ 319.034424][ T7666] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 319.034445][ T7666] do_syscall_64+0x15f/0xf80
[ 319.034466][ T7666] ? trace_irq_disable+0x3b/0x140
[ 319.034492][ T7666] ? clear_bhb_loop+0x40/0x90
[ 319.034513][ T7666] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 319.034532][ T7666] RIP: 0033:0x7f4354b3b5ca
[ 319.034551][ T7666] 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
[ 319.034566][ T7666] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 319.034587][ T7666] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 319.034601][ T7666] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 319.034614][ T7666] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 319.034627][ T7666] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 319.034639][ T7666] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 319.034674][ T7666]
[ 319.049235][ T7666] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 319.049257][ T7666] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 319.639070][ T6798] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 319.698807][ T7664] loop4: detected capacity change from 0 to 32768
[ 319.794794][ T7664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 319.794824][ T7664] CPU: 1 UID: 0 PID: 7664 Comm: syz.4.233 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 319.794845][ T7664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 319.794856][ T7664] Call Trace:
[ 319.794864][ T7664]
[ 319.794872][ T7664] dump_stack_lvl+0xe8/0x150
[ 319.794905][ T7664] sysfs_create_dir_ns+0x271/0x2a0
[ 319.794929][ T7664] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 319.795019][ T7664] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 319.795055][ T7664] ? rt_spin_unlock+0x160/0x200
[ 319.795084][ T7664] kobject_add_internal+0x631/0xd10
[ 319.795118][ T7664] kobject_init_and_add+0x12b/0x1a0
[ 319.795149][ T7664] ? __pfx_kobject_init_and_add+0x10/0x10
[ 319.795175][ T7664] ? __raw_spin_lock_init+0x45/0x100
[ 319.795203][ T7664] ? __init_swait_queue_head+0xa9/0x150
[ 319.795233][ T7664] gfs2_sys_fs_add+0x257/0x480
[ 319.795253][ T7664] ? is_dynamic_key+0x1ac/0x1c0
[ 319.795273][ T7664] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 319.795305][ T7664] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 319.795339][ T7664] gfs2_fill_super+0x141c/0x2220
[ 319.795375][ T7664] ? __pfx_gfs2_fill_super+0x10/0x10
[ 319.795393][ T7664] ? rt_spin_unlock+0x14f/0x200
[ 319.795424][ T7664] ? sb_set_blocksize+0x11b/0x210
[ 319.795446][ T7664] ? setup_bdev_super+0x4c1/0x5b0
[ 319.795475][ T7664] get_tree_bdev_flags+0x431/0x4f0
[ 319.795503][ T7664] ? __pfx_gfs2_fill_super+0x10/0x10
[ 319.795525][ T7664] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 319.795549][ T7664] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 319.795587][ T7664] gfs2_get_tree+0x51/0x1e0
[ 319.795617][ T7664] vfs_get_tree+0x92/0x2a0
[ 319.795646][ T7664] do_new_mount+0x341/0xd30
[ 319.795667][ T7664] ? apparmor_capable+0x126/0x170
[ 319.795695][ T7664] ? __pfx_do_new_mount+0x10/0x10
[ 319.795718][ T7664] ? ns_capable+0x89/0xe0
[ 319.795747][ T7664] ? user_path_at+0xd4/0x160
[ 319.795776][ T7664] ? user_path_at+0xd4/0x160
[ 319.795802][ T7664] __se_sys_mount+0x31d/0x420
[ 319.795845][ T7664] ? __pfx___se_sys_mount+0x10/0x10
[ 319.795871][ T7664] ? __x64_sys_mount+0x20/0xc0
[ 319.795893][ T7664] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 319.795916][ T7664] do_syscall_64+0x15f/0xf80
[ 319.795937][ T7664] ? trace_irq_disable+0x3b/0x140
[ 319.795965][ T7664] ? clear_bhb_loop+0x40/0x90
[ 319.796050][ T7664] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 319.796071][ T7664] RIP: 0033:0x7fd5f95bb5ca
[ 319.796091][ T7664] 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
[ 319.796108][ T7664] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 319.796130][ T7664] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 319.796146][ T7664] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 319.796160][ T7664] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 319.796175][ T7664] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 319.796188][ T7664] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 319.796220][ T7664]
[ 319.807291][ T7664] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 319.807313][ T7664] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 320.208521][ T7672] loop5: detected capacity change from 0 to 32768
[ 320.244430][ T7672] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 320.244451][ T7672] CPU: 1 UID: 0 PID: 7672 Comm: syz.5.236 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 320.244469][ T7672] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 320.244492][ T7672] Call Trace:
[ 320.244499][ T7672]
[ 320.244506][ T7672] dump_stack_lvl+0xe8/0x150
[ 320.244529][ T7672] sysfs_create_dir_ns+0x271/0x2a0
[ 320.244547][ T7672] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 320.244569][ T7672] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 320.244587][ T7672] ? rt_spin_unlock+0x160/0x200
[ 320.244608][ T7672] kobject_add_internal+0x631/0xd10
[ 320.244634][ T7672] kobject_init_and_add+0x12b/0x1a0
[ 320.244657][ T7672] ? __pfx_kobject_init_and_add+0x10/0x10
[ 320.244677][ T7672] ? __raw_spin_lock_init+0x45/0x100
[ 320.244699][ T7672] ? __init_swait_queue_head+0xa9/0x150
[ 320.244722][ T7672] gfs2_sys_fs_add+0x257/0x480
[ 320.244740][ T7672] ? is_dynamic_key+0x1ac/0x1c0
[ 320.244755][ T7672] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 320.244779][ T7672] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 320.244805][ T7672] gfs2_fill_super+0x141c/0x2220
[ 320.244833][ T7672] ? __pfx_gfs2_fill_super+0x10/0x10
[ 320.244845][ T7672] ? rt_spin_unlock+0x14f/0x200
[ 320.244869][ T7672] ? sb_set_blocksize+0x11b/0x210
[ 320.244887][ T7672] ? setup_bdev_super+0x4c1/0x5b0
[ 320.244918][ T7672] get_tree_bdev_flags+0x431/0x4f0
[ 320.244938][ T7672] ? __pfx_gfs2_fill_super+0x10/0x10
[ 320.244952][ T7672] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 320.244969][ T7672] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 320.244997][ T7672] gfs2_get_tree+0x51/0x1e0
[ 320.245015][ T7672] vfs_get_tree+0x92/0x2a0
[ 320.245037][ T7672] do_new_mount+0x341/0xd30
[ 320.245054][ T7672] ? apparmor_capable+0x126/0x170
[ 320.245076][ T7672] ? __pfx_do_new_mount+0x10/0x10
[ 320.245093][ T7672] ? ns_capable+0x89/0xe0
[ 320.245115][ T7672] ? user_path_at+0xd4/0x160
[ 320.245135][ T7672] ? user_path_at+0xd4/0x160
[ 320.245158][ T7672] __se_sys_mount+0x31d/0x420
[ 320.245181][ T7672] ? __pfx___se_sys_mount+0x10/0x10
[ 320.245201][ T7672] ? __x64_sys_mount+0x20/0xc0
[ 320.245217][ T7672] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 320.245233][ T7672] do_syscall_64+0x15f/0xf80
[ 320.245249][ T7672] ? trace_irq_disable+0x3b/0x140
[ 320.245271][ T7672] ? clear_bhb_loop+0x40/0x90
[ 320.245287][ T7672] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 320.245301][ T7672] RIP: 0033:0x7f523924b5ca
[ 320.245316][ T7672] 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
[ 320.245329][ T7672] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 320.245346][ T7672] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 320.245357][ T7672] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 320.245368][ T7672] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 320.245377][ T7672] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 320.245387][ T7672] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 320.245410][ T7672]
[ 320.309782][ T7672] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 320.309805][ T7672] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 320.679488][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 320.837191][ T7110] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 321.215311][ T7670] loop2: detected capacity change from 0 to 32768
[ 321.269325][ T7670] workqueue: Failed to create a rescuer kthread for wq "gfs2-glock/syz:syz": -EINTR
[ 321.569415][ T6798] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 321.689056][ T7682] loop4: detected capacity change from 0 to 32768
[ 321.743059][ T7682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 321.743082][ T7682] CPU: 0 UID: 0 PID: 7682 Comm: syz.4.239 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 321.743103][ T7682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 321.743114][ T7682] Call Trace:
[ 321.743126][ T7682]
[ 321.743134][ T7682] dump_stack_lvl+0xe8/0x150
[ 321.743164][ T7682] sysfs_create_dir_ns+0x271/0x2a0
[ 321.743187][ T7682] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 321.743216][ T7682] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 321.743240][ T7682] ? rt_spin_unlock+0x160/0x200
[ 321.743265][ T7682] kobject_add_internal+0x631/0xd10
[ 321.743294][ T7682] kobject_init_and_add+0x12b/0x1a0
[ 321.743323][ T7682] ? __pfx_kobject_init_and_add+0x10/0x10
[ 321.743348][ T7682] ? __raw_spin_lock_init+0x45/0x100
[ 321.743376][ T7682] ? __init_swait_queue_head+0xa9/0x150
[ 321.743407][ T7682] gfs2_sys_fs_add+0x257/0x480
[ 321.743430][ T7682] ? is_dynamic_key+0x1ac/0x1c0
[ 321.743450][ T7682] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 321.743481][ T7682] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 321.743516][ T7682] gfs2_fill_super+0x141c/0x2220
[ 321.743551][ T7682] ? __pfx_gfs2_fill_super+0x10/0x10
[ 321.743569][ T7682] ? rt_spin_unlock+0x14f/0x200
[ 321.743597][ T7682] ? sb_set_blocksize+0x11b/0x210
[ 321.743619][ T7682] ? setup_bdev_super+0x4c1/0x5b0
[ 321.743649][ T7682] get_tree_bdev_flags+0x431/0x4f0
[ 321.743676][ T7682] ? __pfx_gfs2_fill_super+0x10/0x10
[ 321.743694][ T7682] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 321.743718][ T7682] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 321.743753][ T7682] gfs2_get_tree+0x51/0x1e0
[ 321.743776][ T7682] vfs_get_tree+0x92/0x2a0
[ 321.743803][ T7682] do_new_mount+0x341/0xd30
[ 321.743823][ T7682] ? apparmor_capable+0x126/0x170
[ 321.743849][ T7682] ? __pfx_do_new_mount+0x10/0x10
[ 321.743870][ T7682] ? ns_capable+0x89/0xe0
[ 321.743898][ T7682] ? user_path_at+0xd4/0x160
[ 321.743924][ T7682] ? user_path_at+0xd4/0x160
[ 321.743950][ T7682] __se_sys_mount+0x31d/0x420
[ 321.743977][ T7682] ? __pfx___se_sys_mount+0x10/0x10
[ 321.744005][ T7682] ? __x64_sys_mount+0x20/0xc0
[ 321.744026][ T7682] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 321.744046][ T7682] do_syscall_64+0x15f/0xf80
[ 321.744067][ T7682] ? trace_irq_disable+0x3b/0x140
[ 321.744093][ T7682] ? clear_bhb_loop+0x40/0x90
[ 321.744115][ T7682] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 321.744140][ T7682] RIP: 0033:0x7fd5f95bb5ca
[ 321.744159][ T7682] 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
[ 321.744175][ T7682] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 321.744195][ T7682] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 321.744209][ T7682] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 321.744222][ T7682] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 321.744235][ T7682] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 321.744247][ T7682] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 321.744278][ T7682]
[ 321.744334][ T7682] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 321.744349][ T7682] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 322.142842][ T7678] loop0: detected capacity change from 0 to 32768
[ 322.187843][ T7678] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 322.187866][ T7678] CPU: 0 UID: 0 PID: 7678 Comm: syz.0.238 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 322.187887][ T7678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 322.187898][ T7678] Call Trace:
[ 322.187906][ T7678]
[ 322.187914][ T7678] dump_stack_lvl+0xe8/0x150
[ 322.187943][ T7678] sysfs_create_dir_ns+0x271/0x2a0
[ 322.187967][ T7678] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 322.187994][ T7678] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 322.188020][ T7678] ? rt_spin_unlock+0x160/0x200
[ 322.188059][ T7678] kobject_add_internal+0x631/0xd10
[ 322.188092][ T7678] kobject_init_and_add+0x12b/0x1a0
[ 322.188122][ T7678] ? __pfx_kobject_init_and_add+0x10/0x10
[ 322.188148][ T7678] ? __raw_spin_lock_init+0x45/0x100
[ 322.188176][ T7678] ? __init_swait_queue_head+0xa9/0x150
[ 322.188206][ T7678] gfs2_sys_fs_add+0x257/0x480
[ 322.188229][ T7678] ? is_dynamic_key+0x1ac/0x1c0
[ 322.188249][ T7678] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 322.188281][ T7678] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 322.188315][ T7678] gfs2_fill_super+0x141c/0x2220
[ 322.188358][ T7678] ? __pfx_gfs2_fill_super+0x10/0x10
[ 322.188376][ T7678] ? rt_spin_unlock+0x14f/0x200
[ 322.188405][ T7678] ? sb_set_blocksize+0x11b/0x210
[ 322.188427][ T7678] ? setup_bdev_super+0x4c1/0x5b0
[ 322.188456][ T7678] get_tree_bdev_flags+0x431/0x4f0
[ 322.188482][ T7678] ? __pfx_gfs2_fill_super+0x10/0x10
[ 322.188502][ T7678] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 322.188525][ T7678] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 322.188560][ T7678] gfs2_get_tree+0x51/0x1e0
[ 322.188583][ T7678] vfs_get_tree+0x92/0x2a0
[ 322.188610][ T7678] do_new_mount+0x341/0xd30
[ 322.188631][ T7678] ? apparmor_capable+0x126/0x170
[ 322.188657][ T7678] ? __pfx_do_new_mount+0x10/0x10
[ 322.188679][ T7678] ? ns_capable+0x89/0xe0
[ 322.188707][ T7678] ? user_path_at+0xd4/0x160
[ 322.188734][ T7678] ? user_path_at+0xd4/0x160
[ 322.188759][ T7678] __se_sys_mount+0x31d/0x420
[ 322.188786][ T7678] ? __pfx___se_sys_mount+0x10/0x10
[ 322.188813][ T7678] ? __x64_sys_mount+0x20/0xc0
[ 322.188835][ T7678] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 322.188855][ T7678] do_syscall_64+0x15f/0xf80
[ 322.188876][ T7678] ? trace_irq_disable+0x3b/0x140
[ 322.188901][ T7678] ? clear_bhb_loop+0x40/0x90
[ 322.188924][ T7678] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 322.188942][ T7678] RIP: 0033:0x7fbd28b9b5ca
[ 322.188961][ T7678] 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
[ 322.188977][ T7678] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 322.188997][ T7678] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 322.189012][ T7678] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 322.189025][ T7678] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 322.189042][ T7678] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 322.189054][ T7678] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 322.189085][ T7678]
[ 322.239709][ T7678] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 322.239729][ T7678] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 322.352765][ T7676] loop3: detected capacity change from 0 to 32768
[ 322.536446][ T7676] workqueue: Failed to create a rescuer kthread for wq "gfs2-delete/syz:syz": -EINTR
[ 322.618358][ T6799] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 323.075311][ T7110] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 323.106224][ T6792] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 323.694674][ T7686] loop5: detected capacity change from 0 to 32768
[ 323.746293][ T7686] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 323.746315][ T7686] CPU: 0 UID: 0 PID: 7686 Comm: syz.5.240 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 323.746338][ T7686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 323.746348][ T7686] Call Trace:
[ 323.746356][ T7686]
[ 323.746363][ T7686] dump_stack_lvl+0xe8/0x150
[ 323.746391][ T7686] sysfs_create_dir_ns+0x271/0x2a0
[ 323.746413][ T7686] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 323.746438][ T7686] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 323.746463][ T7686] ? rt_spin_unlock+0x160/0x200
[ 323.746489][ T7686] kobject_add_internal+0x631/0xd10
[ 323.746519][ T7686] kobject_init_and_add+0x12b/0x1a0
[ 323.746544][ T7686] ? __pfx_kobject_init_and_add+0x10/0x10
[ 323.746569][ T7686] ? __raw_spin_lock_init+0x45/0x100
[ 323.746593][ T7686] ? __init_swait_queue_head+0xa9/0x150
[ 323.746621][ T7686] gfs2_sys_fs_add+0x257/0x480
[ 323.746642][ T7686] ? is_dynamic_key+0x1ac/0x1c0
[ 323.746658][ T7686] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 323.746687][ T7686] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 323.746729][ T7686] gfs2_fill_super+0x141c/0x2220
[ 323.746764][ T7686] ? __pfx_gfs2_fill_super+0x10/0x10
[ 323.746782][ T7686] ? rt_spin_unlock+0x14f/0x200
[ 323.746811][ T7686] ? sb_set_blocksize+0x11b/0x210
[ 323.746833][ T7686] ? setup_bdev_super+0x4c1/0x5b0
[ 323.746863][ T7686] get_tree_bdev_flags+0x431/0x4f0
[ 323.746889][ T7686] ? __pfx_gfs2_fill_super+0x10/0x10
[ 323.746909][ T7686] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 323.746932][ T7686] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 323.746967][ T7686] gfs2_get_tree+0x51/0x1e0
[ 323.746990][ T7686] vfs_get_tree+0x92/0x2a0
[ 323.747018][ T7686] do_new_mount+0x341/0xd30
[ 323.747037][ T7686] ? apparmor_capable+0x126/0x170
[ 323.747063][ T7686] ? __pfx_do_new_mount+0x10/0x10
[ 323.747084][ T7686] ? ns_capable+0x89/0xe0
[ 323.747112][ T7686] ? user_path_at+0xd4/0x160
[ 323.747139][ T7686] ? user_path_at+0xd4/0x160
[ 323.747164][ T7686] __se_sys_mount+0x31d/0x420
[ 323.747192][ T7686] ? __pfx___se_sys_mount+0x10/0x10
[ 323.747220][ T7686] ? __x64_sys_mount+0x20/0xc0
[ 323.747241][ T7686] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 323.747262][ T7686] do_syscall_64+0x15f/0xf80
[ 323.747282][ T7686] ? trace_irq_disable+0x3b/0x140
[ 323.747307][ T7686] ? clear_bhb_loop+0x40/0x90
[ 323.747329][ T7686] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 323.747348][ T7686] RIP: 0033:0x7f523924b5ca
2026/05/08 01:08:09 executed programs: 238
[ 323.747366][ T7686] 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
[ 323.747382][ T7686] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 323.747403][ T7686] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 323.747416][ T7686] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 323.747430][ T7686] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 323.747442][ T7686] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 323.747455][ T7686] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 323.747484][ T7686]
[ 323.747511][ T7686] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 323.747526][ T7686] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 323.765142][ T7689] loop2: detected capacity change from 0 to 32768
[ 323.810314][ T7689] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 323.810336][ T7689] CPU: 0 UID: 0 PID: 7689 Comm: syz.2.241 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 323.810356][ T7689] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 323.810367][ T7689] Call Trace:
[ 323.810374][ T7689]
[ 323.810382][ T7689] dump_stack_lvl+0xe8/0x150
[ 323.810411][ T7689] sysfs_create_dir_ns+0x271/0x2a0
[ 323.810433][ T7689] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 323.810460][ T7689] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 323.810485][ T7689] ? rt_spin_unlock+0x160/0x200
[ 323.810512][ T7689] kobject_add_internal+0x631/0xd10
[ 323.810542][ T7689] kobject_init_and_add+0x12b/0x1a0
[ 323.810571][ T7689] ? __pfx_kobject_init_and_add+0x10/0x10
[ 323.810596][ T7689] ? __raw_spin_lock_init+0x45/0x100
[ 323.810623][ T7689] ? __init_swait_queue_head+0xa9/0x150
[ 323.810650][ T7689] gfs2_sys_fs_add+0x257/0x480
[ 323.810672][ T7689] ? is_dynamic_key+0x1ac/0x1c0
[ 323.810691][ T7689] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 323.810722][ T7689] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 323.810754][ T7689] gfs2_fill_super+0x141c/0x2220
[ 323.810788][ T7689] ? __pfx_gfs2_fill_super+0x10/0x10
[ 323.810805][ T7689] ? rt_spin_unlock+0x14f/0x200
[ 323.810834][ T7689] ? sb_set_blocksize+0x11b/0x210
[ 323.810855][ T7689] ? setup_bdev_super+0x4c1/0x5b0
[ 323.810883][ T7689] get_tree_bdev_flags+0x431/0x4f0
[ 323.810909][ T7689] ? __pfx_gfs2_fill_super+0x10/0x10
[ 323.810927][ T7689] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 323.810957][ T7689] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 323.810992][ T7689] gfs2_get_tree+0x51/0x1e0
[ 323.811017][ T7689] vfs_get_tree+0x92/0x2a0
[ 323.811044][ T7689] do_new_mount+0x341/0xd30
[ 323.811063][ T7689] ? apparmor_capable+0x126/0x170
[ 323.811088][ T7689] ? __pfx_do_new_mount+0x10/0x10
[ 323.811108][ T7689] ? ns_capable+0x89/0xe0
[ 323.811136][ T7689] ? user_path_at+0xd4/0x160
[ 323.811162][ T7689] ? user_path_at+0xd4/0x160
[ 323.811186][ T7689] __se_sys_mount+0x31d/0x420
[ 323.811212][ T7689] ? __pfx___se_sys_mount+0x10/0x10
[ 323.811239][ T7689] ? __x64_sys_mount+0x20/0xc0
[ 323.811259][ T7689] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 323.811278][ T7689] do_syscall_64+0x15f/0xf80
[ 323.811297][ T7689] ? trace_irq_disable+0x3b/0x140
[ 323.811321][ T7689] ? clear_bhb_loop+0x40/0x90
[ 323.811343][ T7689] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 323.811361][ T7689] RIP: 0033:0x7ff71f8cb5ca
[ 323.811378][ T7689] 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
[ 323.811393][ T7689] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 323.811412][ T7689] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 323.811426][ T7689] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 323.811439][ T7689] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 323.811451][ T7689] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 323.811463][ T7689] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 323.811491][ T7689]
[ 323.823912][ T7689] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 323.823931][ T7689] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 323.844668][ T7689] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 324.499750][ T6304] Bluetooth: hci5: command 0x0406 tx timeout
[ 324.624732][ T7700] loop0: detected capacity change from 0 to 32768
[ 324.638730][ T6799] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 324.663596][ T7700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 324.663618][ T7700] CPU: 0 UID: 0 PID: 7700 Comm: syz.0.244 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 324.663649][ T7700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 324.663660][ T7700] Call Trace:
[ 324.663668][ T7700]
[ 324.663679][ T7700] dump_stack_lvl+0xe8/0x150
[ 324.663709][ T7700] sysfs_create_dir_ns+0x271/0x2a0
[ 324.663733][ T7700] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 324.663760][ T7700] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 324.663786][ T7700] ? rt_spin_unlock+0x160/0x200
[ 324.663814][ T7700] kobject_add_internal+0x631/0xd10
[ 324.663847][ T7700] kobject_init_and_add+0x12b/0x1a0
[ 324.663876][ T7700] ? __pfx_kobject_init_and_add+0x10/0x10
[ 324.663902][ T7700] ? __raw_spin_lock_init+0x45/0x100
[ 324.663928][ T7700] ? __init_swait_queue_head+0xa9/0x150
[ 324.663957][ T7700] gfs2_sys_fs_add+0x257/0x480
[ 324.663980][ T7700] ? is_dynamic_key+0x1ac/0x1c0
[ 324.664000][ T7700] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 324.664033][ T7700] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 324.664067][ T7700] gfs2_fill_super+0x141c/0x2220
[ 324.664102][ T7700] ? __pfx_gfs2_fill_super+0x10/0x10
[ 324.664120][ T7700] ? rt_spin_unlock+0x14f/0x200
[ 324.664148][ T7700] ? sb_set_blocksize+0x11b/0x210
[ 324.664170][ T7700] ? setup_bdev_super+0x4c1/0x5b0
[ 324.664198][ T7700] get_tree_bdev_flags+0x431/0x4f0
[ 324.664225][ T7700] ? __pfx_gfs2_fill_super+0x10/0x10
[ 324.664244][ T7700] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 324.664268][ T7700] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 324.664303][ T7700] gfs2_get_tree+0x51/0x1e0
[ 324.664327][ T7700] vfs_get_tree+0x92/0x2a0
[ 324.664354][ T7700] do_new_mount+0x341/0xd30
[ 324.664373][ T7700] ? apparmor_capable+0x126/0x170
[ 324.664399][ T7700] ? __pfx_do_new_mount+0x10/0x10
[ 324.664421][ T7700] ? ns_capable+0x89/0xe0
[ 324.664448][ T7700] ? user_path_at+0xd4/0x160
[ 324.664475][ T7700] ? user_path_at+0xd4/0x160
[ 324.664500][ T7700] __se_sys_mount+0x31d/0x420
[ 324.664527][ T7700] ? __pfx___se_sys_mount+0x10/0x10
[ 324.664555][ T7700] ? __x64_sys_mount+0x20/0xc0
[ 324.664575][ T7700] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 324.664596][ T7700] do_syscall_64+0x15f/0xf80
[ 324.664616][ T7700] ? trace_irq_disable+0x3b/0x140
[ 324.664648][ T7700] ? clear_bhb_loop+0x40/0x90
[ 324.664671][ T7700] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 324.664689][ T7700] RIP: 0033:0x7fbd28b9b5ca
[ 324.664708][ T7700] 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
[ 324.664724][ T7700] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 324.664743][ T7700] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 324.664757][ T7700] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 324.664770][ T7700] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 324.664783][ T7700] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 324.664795][ T7700] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 324.664824][ T7700]
[ 324.664938][ T7700] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 324.664954][ T7700] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 325.276499][ T6798] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 325.503081][ T7702] loop3: detected capacity change from 0 to 32768
[ 325.523445][ T7702] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 325.523467][ T7702] CPU: 0 UID: 0 PID: 7702 Comm: syz.3.243 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 325.523486][ T7702] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 325.523495][ T7702] Call Trace:
[ 325.523502][ T7702]
[ 325.523508][ T7702] dump_stack_lvl+0xe8/0x150
[ 325.523533][ T7702] sysfs_create_dir_ns+0x271/0x2a0
[ 325.523556][ T7702] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 325.523583][ T7702] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 325.523608][ T7702] ? rt_spin_unlock+0x160/0x200
[ 325.523635][ T7702] kobject_add_internal+0x631/0xd10
[ 325.523666][ T7702] kobject_init_and_add+0x12b/0x1a0
[ 325.523696][ T7702] ? __pfx_kobject_init_and_add+0x10/0x10
[ 325.523730][ T7702] ? __raw_spin_lock_init+0x45/0x100
[ 325.523757][ T7702] ? __init_swait_queue_head+0xa9/0x150
[ 325.523785][ T7702] gfs2_sys_fs_add+0x257/0x480
[ 325.523809][ T7702] ? is_dynamic_key+0x1ac/0x1c0
[ 325.523829][ T7702] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 325.523859][ T7702] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 325.523889][ T7702] gfs2_fill_super+0x141c/0x2220
[ 325.523920][ T7702] ? __pfx_gfs2_fill_super+0x10/0x10
[ 325.523936][ T7702] ? rt_spin_unlock+0x14f/0x200
[ 325.523964][ T7702] ? sb_set_blocksize+0x11b/0x210
[ 325.523986][ T7702] ? setup_bdev_super+0x4c1/0x5b0
[ 325.524015][ T7702] get_tree_bdev_flags+0x431/0x4f0
[ 325.524042][ T7702] ? __pfx_gfs2_fill_super+0x10/0x10
[ 325.524062][ T7702] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 325.524085][ T7702] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 325.524120][ T7702] gfs2_get_tree+0x51/0x1e0
[ 325.524143][ T7702] vfs_get_tree+0x92/0x2a0
[ 325.524170][ T7702] do_new_mount+0x341/0xd30
[ 325.524191][ T7702] ? apparmor_capable+0x126/0x170
[ 325.524218][ T7702] ? __pfx_do_new_mount+0x10/0x10
[ 325.524240][ T7702] ? ns_capable+0x89/0xe0
[ 325.524268][ T7702] ? user_path_at+0xd4/0x160
[ 325.524295][ T7702] ? user_path_at+0xd4/0x160
[ 325.524320][ T7702] __se_sys_mount+0x31d/0x420
[ 325.524347][ T7702] ? __pfx___se_sys_mount+0x10/0x10
[ 325.524373][ T7702] ? __x64_sys_mount+0x20/0xc0
[ 325.524392][ T7702] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 325.524412][ T7702] do_syscall_64+0x15f/0xf80
[ 325.524432][ T7702] ? trace_irq_disable+0x3b/0x140
[ 325.524456][ T7702] ? clear_bhb_loop+0x40/0x90
[ 325.524477][ T7702] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 325.524494][ T7702] RIP: 0033:0x7f4354b3b5ca
[ 325.524511][ T7702] 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
[ 325.524526][ T7702] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 325.524545][ T7702] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 325.524559][ T7702] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 325.524572][ T7702] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 325.524583][ T7702] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 325.524594][ T7702] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 325.524623][ T7702]
[ 325.524650][ T7702] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 325.524663][ T7702] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 325.989518][ T7708] loop5: detected capacity change from 0 to 32768
[ 326.004659][ T7708] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 326.004681][ T7708] CPU: 1 UID: 0 PID: 7708 Comm: syz.5.245 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 326.004703][ T7708] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 326.004714][ T7708] Call Trace:
[ 326.004721][ T7708]
[ 326.004729][ T7708] dump_stack_lvl+0xe8/0x150
[ 326.004758][ T7708] sysfs_create_dir_ns+0x271/0x2a0
[ 326.004782][ T7708] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 326.004810][ T7708] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 326.004836][ T7708] ? rt_spin_unlock+0x160/0x200
[ 326.004863][ T7708] kobject_add_internal+0x631/0xd10
[ 326.004896][ T7708] kobject_init_and_add+0x12b/0x1a0
[ 326.004926][ T7708] ? __pfx_kobject_init_and_add+0x10/0x10
[ 326.004953][ T7708] ? __raw_spin_lock_init+0x45/0x100
[ 326.004980][ T7708] ? __init_swait_queue_head+0xa9/0x150
[ 326.005009][ T7708] gfs2_sys_fs_add+0x257/0x480
[ 326.005032][ T7708] ? is_dynamic_key+0x1ac/0x1c0
[ 326.005051][ T7708] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 326.005083][ T7708] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 326.005121][ T7708] gfs2_fill_super+0x141c/0x2220
[ 326.005157][ T7708] ? __pfx_gfs2_fill_super+0x10/0x10
[ 326.005175][ T7708] ? rt_spin_unlock+0x14f/0x200
[ 326.005221][ T7708] ? sb_set_blocksize+0x11b/0x210
[ 326.005243][ T7708] ? setup_bdev_super+0x4c1/0x5b0
[ 326.005277][ T7708] get_tree_bdev_flags+0x431/0x4f0
[ 326.005303][ T7708] ? __pfx_gfs2_fill_super+0x10/0x10
[ 326.005322][ T7708] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 326.005345][ T7708] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 326.005381][ T7708] gfs2_get_tree+0x51/0x1e0
[ 326.005404][ T7708] vfs_get_tree+0x92/0x2a0
[ 326.005437][ T7708] do_new_mount+0x341/0xd30
[ 326.005458][ T7708] ? apparmor_capable+0x126/0x170
[ 326.005484][ T7708] ? __pfx_do_new_mount+0x10/0x10
[ 326.005505][ T7708] ? ns_capable+0x89/0xe0
[ 326.005533][ T7708] ? user_path_at+0xd4/0x160
[ 326.005561][ T7708] ? user_path_at+0xd4/0x160
[ 326.005586][ T7708] __se_sys_mount+0x31d/0x420
[ 326.005613][ T7708] ? __pfx___se_sys_mount+0x10/0x10
[ 326.005640][ T7708] ? __x64_sys_mount+0x20/0xc0
[ 326.005659][ T7708] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 326.005677][ T7708] do_syscall_64+0x15f/0xf80
[ 326.005696][ T7708] ? trace_irq_disable+0x3b/0x140
[ 326.005723][ T7708] ? clear_bhb_loop+0x40/0x90
[ 326.005745][ T7708] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 326.005764][ T7708] RIP: 0033:0x7f523924b5ca
[ 326.005783][ T7708] 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
[ 326.005799][ T7708] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 326.005819][ T7708] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 326.005833][ T7708] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 326.005847][ T7708] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 326.005860][ T7708] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 326.005871][ T7708] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 326.005901][ T7708]
[ 326.008572][ T7708] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 326.008591][ T7708] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 326.547738][ T7110] __loop_clr_fd(loop3) clearing lo_backing_file (refcnt=0x0)
[ 326.695805][ T6799] __loop_clr_fd(loop5) clearing lo_backing_file (refcnt=0x0)
[ 327.472592][ T7713] loop0: detected capacity change from 0 to 32768
[ 327.537362][ T7713] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 327.537384][ T7713] CPU: 1 UID: 0 PID: 7713 Comm: syz.0.246 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 327.537406][ T7713] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 327.537417][ T7713] Call Trace:
[ 327.537424][ T7713]
[ 327.537432][ T7713] dump_stack_lvl+0xe8/0x150
[ 327.537462][ T7713] sysfs_create_dir_ns+0x271/0x2a0
[ 327.537486][ T7713] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 327.537514][ T7713] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 327.537540][ T7713] ? rt_spin_unlock+0x160/0x200
[ 327.537566][ T7713] kobject_add_internal+0x631/0xd10
[ 327.537599][ T7713] kobject_init_and_add+0x12b/0x1a0
[ 327.537629][ T7713] ? __pfx_kobject_init_and_add+0x10/0x10
[ 327.537656][ T7713] ? __raw_spin_lock_init+0x45/0x100
[ 327.537683][ T7713] ? __init_swait_queue_head+0xa9/0x150
[ 327.537713][ T7713] gfs2_sys_fs_add+0x257/0x480
[ 327.537737][ T7713] ? is_dynamic_key+0x1ac/0x1c0
[ 327.537757][ T7713] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 327.537789][ T7713] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 327.537824][ T7713] gfs2_fill_super+0x141c/0x2220
[ 327.537859][ T7713] ? __pfx_gfs2_fill_super+0x10/0x10
[ 327.537878][ T7713] ? rt_spin_unlock+0x14f/0x200
[ 327.537907][ T7713] ? sb_set_blocksize+0x11b/0x210
[ 327.537929][ T7713] ? setup_bdev_super+0x4c1/0x5b0
[ 327.537958][ T7713] get_tree_bdev_flags+0x431/0x4f0
[ 327.537985][ T7713] ? __pfx_gfs2_fill_super+0x10/0x10
[ 327.538004][ T7713] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 327.538028][ T7713] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 327.538064][ T7713] gfs2_get_tree+0x51/0x1e0
[ 327.538087][ T7713] vfs_get_tree+0x92/0x2a0
[ 327.538114][ T7713] do_new_mount+0x341/0xd30
[ 327.538134][ T7713] ? apparmor_capable+0x126/0x170
[ 327.538161][ T7713] ? __pfx_do_new_mount+0x10/0x10
[ 327.538183][ T7713] ? ns_capable+0x89/0xe0
[ 327.538211][ T7713] ? user_path_at+0xd4/0x160
[ 327.538238][ T7713] ? user_path_at+0xd4/0x160
[ 327.538264][ T7713] __se_sys_mount+0x31d/0x420
[ 327.538291][ T7713] ? __pfx___se_sys_mount+0x10/0x10
[ 327.538410][ T7713] ? __x64_sys_mount+0x20/0xc0
[ 327.538432][ T7713] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 327.538452][ T7713] do_syscall_64+0x15f/0xf80
[ 327.538473][ T7713] ? trace_irq_disable+0x3b/0x140
[ 327.538499][ T7713] ? clear_bhb_loop+0x40/0x90
[ 327.538522][ T7713] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 327.538540][ T7713] RIP: 0033:0x7fbd28b9b5ca
[ 327.538559][ T7713] 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
[ 327.538574][ T7713] RSP: 002b:00007fbd281fde58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 327.538595][ T7713] RAX: ffffffffffffffda RBX: 00007fbd281fdee0 RCX: 00007fbd28b9b5ca
[ 327.538609][ T7713] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fbd281fdea0
[ 327.538622][ T7713] RBP: 000020000001f680 R08: 00007fbd281fdee0 R09: 0000000000000084
[ 327.538634][ T7713] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 327.538646][ T7713] R13: 00007fbd281fdea0 R14: 000000000001f790 R15: 00002000000001c0
[ 327.538675][ T7713]
[ 327.538705][ T7713] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 327.538720][ T7713] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 327.764769][ T7714] loop2: detected capacity change from 0 to 32768
[ 327.850437][ T7714] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 327.850460][ T7714] CPU: 0 UID: 0 PID: 7714 Comm: syz.2.247 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 327.850482][ T7714] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 327.850492][ T7714] Call Trace:
[ 327.850500][ T7714]
[ 327.850507][ T7714] dump_stack_lvl+0xe8/0x150
[ 327.850535][ T7714] sysfs_create_dir_ns+0x271/0x2a0
[ 327.850558][ T7714] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 327.850585][ T7714] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 327.850610][ T7714] ? rt_spin_unlock+0x160/0x200
[ 327.850637][ T7714] kobject_add_internal+0x631/0xd10
[ 327.850668][ T7714] kobject_init_and_add+0x12b/0x1a0
[ 327.850697][ T7714] ? __pfx_kobject_init_and_add+0x10/0x10
[ 327.850722][ T7714] ? __raw_spin_lock_init+0x45/0x100
[ 327.850749][ T7714] ? __init_swait_queue_head+0xa9/0x150
[ 327.850777][ T7714] gfs2_sys_fs_add+0x257/0x480
[ 327.850799][ T7714] ? is_dynamic_key+0x1ac/0x1c0
[ 327.850819][ T7714] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 327.850850][ T7714] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 327.850882][ T7714] gfs2_fill_super+0x141c/0x2220
[ 327.850916][ T7714] ? __pfx_gfs2_fill_super+0x10/0x10
[ 327.850942][ T7714] ? rt_spin_unlock+0x14f/0x200
[ 327.850970][ T7714] ? sb_set_blocksize+0x11b/0x210
[ 327.850991][ T7714] ? setup_bdev_super+0x4c1/0x5b0
[ 327.851020][ T7714] get_tree_bdev_flags+0x431/0x4f0
[ 327.851045][ T7714] ? __pfx_gfs2_fill_super+0x10/0x10
[ 327.851063][ T7714] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 327.851085][ T7714] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 327.851120][ T7714] gfs2_get_tree+0x51/0x1e0
[ 327.851142][ T7714] vfs_get_tree+0x92/0x2a0
[ 327.851168][ T7714] do_new_mount+0x341/0xd30
[ 327.851187][ T7714] ? apparmor_capable+0x126/0x170
[ 327.851212][ T7714] ? __pfx_do_new_mount+0x10/0x10
[ 327.851233][ T7714] ? ns_capable+0x89/0xe0
[ 327.851259][ T7714] ? user_path_at+0xd4/0x160
[ 327.851291][ T7714] ? user_path_at+0xd4/0x160
[ 327.851315][ T7714] __se_sys_mount+0x31d/0x420
[ 327.851341][ T7714] ? __pfx___se_sys_mount+0x10/0x10
[ 327.851368][ T7714] ? __x64_sys_mount+0x20/0xc0
[ 327.851388][ T7714] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 327.851407][ T7714] do_syscall_64+0x15f/0xf80
[ 327.851433][ T7714] ? trace_irq_disable+0x3b/0x140
[ 327.851459][ T7714] ? clear_bhb_loop+0x40/0x90
[ 327.851480][ T7714] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 327.851498][ T7714] RIP: 0033:0x7ff71f8cb5ca
[ 327.851516][ T7714] 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
[ 327.851530][ T7714] RSP: 002b:00007ff71ef2de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 327.851550][ T7714] RAX: ffffffffffffffda RBX: 00007ff71ef2dee0 RCX: 00007ff71f8cb5ca
[ 327.851564][ T7714] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007ff71ef2dea0
[ 327.851578][ T7714] RBP: 000020000001f680 R08: 00007ff71ef2dee0 R09: 0000000000000084
[ 327.851590][ T7714] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 327.851601][ T7714] R13: 00007ff71ef2dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 327.851629][ T7714]
[ 327.851667][ T7714] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 327.872756][ T7714] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 328.226146][ T7722] loop4: detected capacity change from 0 to 32768
[ 328.299819][ T7722] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 328.299841][ T7722] CPU: 1 UID: 0 PID: 7722 Comm: syz.4.249 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 328.299860][ T7722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 328.299870][ T7722] Call Trace:
[ 328.299878][ T7722]
[ 328.299886][ T7722] dump_stack_lvl+0xe8/0x150
[ 328.299916][ T7722] sysfs_create_dir_ns+0x271/0x2a0
[ 328.299939][ T7722] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 328.299966][ T7722] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 328.299992][ T7722] ? rt_spin_unlock+0x160/0x200
[ 328.300020][ T7722] kobject_add_internal+0x631/0xd10
[ 328.300052][ T7722] kobject_init_and_add+0x12b/0x1a0
[ 328.300082][ T7722] ? __pfx_kobject_init_and_add+0x10/0x10
[ 328.300109][ T7722] ? __raw_spin_lock_init+0x45/0x100
[ 328.300136][ T7722] ? __init_swait_queue_head+0xa9/0x150
[ 328.300166][ T7722] gfs2_sys_fs_add+0x257/0x480
[ 328.300189][ T7722] ? is_dynamic_key+0x1ac/0x1c0
[ 328.300209][ T7722] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 328.300241][ T7722] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 328.300284][ T7722] gfs2_fill_super+0x141c/0x2220
[ 328.300325][ T7722] ? __pfx_gfs2_fill_super+0x10/0x10
[ 328.300343][ T7722] ? rt_spin_unlock+0x14f/0x200
[ 328.300372][ T7722] ? sb_set_blocksize+0x11b/0x210
[ 328.300394][ T7722] ? setup_bdev_super+0x4c1/0x5b0
[ 328.300423][ T7722] get_tree_bdev_flags+0x431/0x4f0
[ 328.300449][ T7722] ? __pfx_gfs2_fill_super+0x10/0x10
[ 328.300468][ T7722] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 328.300492][ T7722] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 328.300527][ T7722] gfs2_get_tree+0x51/0x1e0
[ 328.300550][ T7722] vfs_get_tree+0x92/0x2a0
[ 328.300579][ T7722] do_new_mount+0x341/0xd30
[ 328.300598][ T7722] ? apparmor_capable+0x126/0x170
[ 328.300625][ T7722] ? __pfx_do_new_mount+0x10/0x10
[ 328.300646][ T7722] ? ns_capable+0x89/0xe0
[ 328.300674][ T7722] ? user_path_at+0xd4/0x160
[ 328.300702][ T7722] ? user_path_at+0xd4/0x160
[ 328.300727][ T7722] __se_sys_mount+0x31d/0x420
[ 328.300755][ T7722] ? __pfx___se_sys_mount+0x10/0x10
[ 328.300783][ T7722] ? __x64_sys_mount+0x20/0xc0
[ 328.300804][ T7722] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 328.300824][ T7722] do_syscall_64+0x15f/0xf80
[ 328.300843][ T7722] ? trace_irq_disable+0x3b/0x140
[ 328.300867][ T7722] ? clear_bhb_loop+0x40/0x90
[ 328.300890][ T7722] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 328.300907][ T7722] RIP: 0033:0x7fd5f95bb5ca
[ 328.300926][ T7722] 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
[ 328.300942][ T7722] RSP: 002b:00007fd5f8c1de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 328.300962][ T7722] RAX: ffffffffffffffda RBX: 00007fd5f8c1dee0 RCX: 00007fd5f95bb5ca
[ 328.300976][ T7722] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007fd5f8c1dea0
[ 328.300989][ T7722] RBP: 000020000001f680 R08: 00007fd5f8c1dee0 R09: 0000000000000084
[ 328.301001][ T7722] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 328.301014][ T7722] R13: 00007fd5f8c1dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 328.301043][ T7722]
[ 328.304103][ T7722] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 328.304121][ T7722] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 328.761243][ T7718] loop3: detected capacity change from 0 to 32768
[ 328.777234][ T6799] __loop_clr_fd(loop2) clearing lo_backing_file (refcnt=0x0)
[ 328.781791][ T7718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 328.781813][ T7718] CPU: 0 UID: 0 PID: 7718 Comm: syz.3.248 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 328.781833][ T7718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 328.781844][ T7718] Call Trace:
[ 328.781852][ T7718]
[ 328.781859][ T7718] dump_stack_lvl+0xe8/0x150
[ 328.781892][ T7718] sysfs_create_dir_ns+0x271/0x2a0
[ 328.781916][ T7718] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 328.781943][ T7718] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 328.781967][ T7718] ? rt_spin_unlock+0x160/0x200
[ 328.781994][ T7718] kobject_add_internal+0x631/0xd10
[ 328.782026][ T7718] kobject_init_and_add+0x12b/0x1a0
[ 328.782055][ T7718] ? __pfx_kobject_init_and_add+0x10/0x10
[ 328.782081][ T7718] ? __raw_spin_lock_init+0x45/0x100
[ 328.782108][ T7718] ? __init_swait_queue_head+0xa9/0x150
[ 328.782136][ T7718] gfs2_sys_fs_add+0x257/0x480
[ 328.782158][ T7718] ? is_dynamic_key+0x1ac/0x1c0
[ 328.782177][ T7718] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 328.782207][ T7718] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 328.782246][ T7718] gfs2_fill_super+0x141c/0x2220
[ 328.782280][ T7718] ? __pfx_gfs2_fill_super+0x10/0x10
[ 328.782297][ T7718] ? rt_spin_unlock+0x14f/0x200
[ 328.782326][ T7718] ? sb_set_blocksize+0x11b/0x210
[ 328.782347][ T7718] ? setup_bdev_super+0x4c1/0x5b0
[ 328.782375][ T7718] get_tree_bdev_flags+0x431/0x4f0
[ 328.782400][ T7718] ? __pfx_gfs2_fill_super+0x10/0x10
[ 328.782419][ T7718] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 328.782441][ T7718] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 328.782475][ T7718] gfs2_get_tree+0x51/0x1e0
[ 328.782496][ T7718] vfs_get_tree+0x92/0x2a0
[ 328.782523][ T7718] do_new_mount+0x341/0xd30
[ 328.782541][ T7718] ? apparmor_capable+0x126/0x170
[ 328.782566][ T7718] ? __pfx_do_new_mount+0x10/0x10
[ 328.782586][ T7718] ? ns_capable+0x89/0xe0
[ 328.782614][ T7718] ? user_path_at+0xd4/0x160
[ 328.782640][ T7718] ? user_path_at+0xd4/0x160
[ 328.782664][ T7718] __se_sys_mount+0x31d/0x420
[ 328.782690][ T7718] ? __pfx___se_sys_mount+0x10/0x10
[ 328.782717][ T7718] ? __x64_sys_mount+0x20/0xc0
[ 328.782737][ T7718] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 328.782756][ T7718] do_syscall_64+0x15f/0xf80
[ 328.782776][ T7718] ? trace_irq_disable+0x3b/0x140
[ 328.782800][ T7718] ? clear_bhb_loop+0x40/0x90
[ 328.782822][ T7718] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 328.782839][ T7718] RIP: 0033:0x7f4354b3b5ca
[ 328.782857][ T7718] 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
2026/05/08 01:08:14 executed programs: 247
[ 328.782872][ T7718] RSP: 002b:00007f435419de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 328.782892][ T7718] RAX: ffffffffffffffda RBX: 00007f435419dee0 RCX: 00007f4354b3b5ca
[ 328.782905][ T7718] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f435419dea0
[ 328.782918][ T7718] RBP: 000020000001f680 R08: 00007f435419dee0 R09: 0000000000000084
[ 328.782931][ T7718] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 328.782942][ T7718] R13: 00007f435419dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 328.782971][ T7718]
[ 328.783071][ T7718] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 328.783086][ T7718] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 328.797448][ T6798] __loop_clr_fd(loop0) clearing lo_backing_file (refcnt=0x0)
[ 329.345288][ T7110] __loop_clr_fd(loop4) clearing lo_backing_file (refcnt=0x0)
[ 329.427590][ T7724] loop5: detected capacity change from 0 to 32768
[ 329.453797][ T7724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz'
[ 329.453819][ T7724] CPU: 0 UID: 0 PID: 7724 Comm: syz.5.250 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 329.453839][ T7724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 329.453850][ T7724] Call Trace:
[ 329.453857][ T7724]
[ 329.453865][ T7724] dump_stack_lvl+0xe8/0x150
[ 329.453894][ T7724] sysfs_create_dir_ns+0x271/0x2a0
[ 329.453918][ T7724] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 329.453946][ T7724] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 329.453972][ T7724] ? rt_spin_unlock+0x160/0[ 329.453972][ T7724] ? rt_spin_unlock+0x160/0x200
[ 329.454000][ T7724] kobject_add_internal+0x631/0xd10
[ 329.454033][ T7724] kobject_init_and_add+0x12b/0x1a0
[ 329.454064][ T7724] ? __pfx_kobject_init_and_add+0x10/0x10
[ 329.454090][ T7724] ? __raw_spin_lock_init+0x45/0x100
[ 329.454118][ T7724] ? __init_swait_queue_head+0xa9/0x150
[ 329.454154][ T7724] gfs2_sys_fs_add+0x257/0x480
[ 329.454178][ T7724] ? is_dynamic_key+0x1ac/0x1c0
[ 329.454198][ T7724] ? __pfx_gfs2_sys_fs_add+0x10/0x10
[ 329.454231][ T7724] ? __pfx_alloc_workqueue_noprof+0x10/0x10
[ 329.454264][ T7724] gfs2_fill_super+0x141c/0x2220
[ 329.454299][ T7724] ? __pfx_gfs2_fill_super+0x10/0x10
[ 329.454320][ T7724] ? rt_spin_unlock+0x14f/0x200
[ 329.454350][ T7724] ? sb_set_blocksize+0x11b/0x210
[ 329.454371][ T7724] ? setup_bdev_super+0x4c1/0x5b0
[ 329.454400][ T7724] get_tree_bdev_flags+0x431/0x4f0
[ 329.454426][ T7724] ? __pfx_gfs2_fill_super+0x10/0x10
[ 329.454446][ T7724] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 329.454469][ T7724] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 329.454502][ T7724] gfs2_get_tree+0x51/0x1e0
[ 329.454524][ T7724] vfs_get_tree+0x92/0x2a0
[ 329.454549][ T7724] do_new_mount+0x341/0xd30
[ 329.454567][ T7724] ? apparmor_capable+0x126/0x170
[ 329.454593][ T7724] ? __pfx_do_new_mount+0x10/0x10
[ 329.454612][ T7724] ? ns_capable+0x89/0xe0
[ 329.454640][ T7724] ? user_path_at+0xd4/0x160
[ 329.454677][ T7724] ? user_path_at+0xd4/0x160
[ 329.454700][ T7724] __se_sys_mount+0x31d/0x420
[ 329.454727][ T7724] ? __pfx___se_sys_mount+0x10/0x10
[ 329.454755][ T7724] ? __x64_sys_mount+0x20/0xc0
[ 329.454775][ T7724] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 329.454796][ T7724] do_syscall_64+0x15f/0xf80
[ 329.454817][ T7724] ? trace_irq_disable+0x3b/0x140
[ 329.454842][ T7724] ? clear_bhb_loop+0x40/0x90
[ 329.454866][ T7724] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 329.454884][ T7724] RIP: 0033:0x7f523924b5ca
[ 329.454902][ T7724] 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
[ 329.454918][ T7724] RSP: 002b:00007f52388ade58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 329.454938][ T7724] RAX: ffffffffffffffda RBX: 00007f52388adee0 RCX: 00007f523924b5ca
[ 329.454950][ T7724] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f52388adea0
[ 329.454963][ T7724] RBP: 000020000001f680 R08: 00007f52388adee0 R09: 0000000000000084
[ 329.454976][ T7724] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 329.455006][ T7724] R13: 00007f52388adea0 R14: 000000000001f790 R15: 00002000000001c0
[ 329.455033][ T7724]
[ 329.455066][ T7724] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory.
[ 329.455079][ T7724] gfs2: fsid=syz:syz: error -17 adding sysfs files
[ 329.460031][ T39] INFO: task kworker/0:6:6795 blocked in I/O wait for more than 143 seconds.
[ 329.460054][ T39] Not tainted syzkaller #0
[ 329.460063][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 329.460072][ T39] task:kworker/0:6 state:D stack:22208 pid:6795 tgid:6795 ppid:2 task_flags:0x4208060 flags:0x00080000
[ 329.460114][ T39] Workqueue: gfs2_recovery gfs2_recover_func
[ 329.460147][ T39] Call Trace:
[ 329.460154][ T39]
[ 329.460166][ T39] __schedule+0x16f9/0x5500
[ 329.460192][ T39] ? __lock_acquire+0x6b5/0x2d10
[ 329.460235][ T39] ? __pfx___schedule+0x10/0x10
[ 329.460261][ T39] ? schedule+0x90/0x360
[ 329.460284][ T39] schedule+0x164/0x360
[ 329.460305][ T39] io_schedule+0x7f/0xd0
[ 329.460326][ T39] folio_wait_bit_common+0x6dd/0xbc0
[ 329.460369][ T39] ? __pfx_folio_wait_bit_common+0x10/0x10
[ 329.460395][ T39] ? __pfx_wake_page_function+0x10/0x10
[ 329.460418][ T39] ? __get_log_header+0x2a3/0x630
[ 329.460446][ T39] ? __filemap_get_folio_mpol+0x6fa/0xa50
[ 329.460477][ T39] gfs2_jhead_process_page+0x175/0x670
[ 329.460509][ T39] ? __pfx_gfs2_jhead_process_page+0x10/0x10
[ 329.460548][ T39] gfs2_find_jhead+0xbd2/0xd30
[ 329.460592][ T39] gfs2_recover_func+0x6cf/0x1f60
[ 329.460634][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 329.460659][ T39] ? __pfx_gfs2_recover_func+0x10/0x10
[ 329.460679][ T39] ? __lock_acquire+0x6b5/0x2d10
[ 329.460698][ T39] ? look_up_lock_class+0x57/0x110
[ 329.460721][ T39] ? register_lock_class+0x31/0x2e0
[ 329.460744][ T39] ? __lock_acquire+0x6b5/0x2d10
[ 329.460775][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 329.460806][ T39] ? process_one_work+0x8be/0x1630
[ 329.460844][ T39] ? process_one_work+0x8be/0x1630
[ 329.460866][ T39] process_one_work+0x98b/0x1630
[ 329.460908][ T39] ? __pfx_process_one_work+0x10/0x10
[ 329.460929][ T39] ? do_raw_spin_lock+0x12b/0x2f0
[ 329.460968][ T39] worker_thread+0xb49/0x1140
[ 329.461000][ T39] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 329.461035][ T39] kthread+0x388/0x470
[ 329.461054][ T39] ? __pfx_worker_thread+0x10/0x10
[ 329.461076][ T39] ? __pfx_kthread+0x10/0x10
[ 329.461096][ T39] ret_from_fork+0x514/0xb70
[ 329.461121][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 329.461147][ T39] ? __switch_to+0xc79/0x1410
[ 329.461169][ T39] ? __pfx_kthread+0x10/0x10
[ 329.461189][ T39] ret_from_fork_asm+0x1a/0x30
[ 329.461227][ T39]
[ 329.461238][ T39] INFO: task syz.1.25:6835 blocked for more than 143 seconds.
[ 329.461252][ T39] Not tainted syzkaller #0
[ 329.461261][ T39] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 329.461283][ T39] task:syz.1.25 state:D stack:24664 pid:6835 tgid:6834 ppid:6293 task_flags:0x400140 flags:0x00080002
[ 329.463672][ T39] Call Trace:
[ 329.463682][ T39]
[ 329.463694][ T39] __schedule+0x16f9/0x5500
[ 329.463719][ T39] ? __lock_acquire+0x6b5/0x2d10
[ 329.463764][ T39] ? __pfx___schedule+0x10/0x10
[ 329.463789][ T39] ? schedule+0x90/0x360
[ 329.463811][ T39] schedule+0x164/0x360
[ 329.463833][ T39] bit_wait+0x11/0xd0
[ 329.463854][ T39] __wait_on_bit+0xb9/0x300
[ 329.463876][ T39] ? __pfx_bit_wait+0x10/0x10
[ 329.463898][ T39] out_of_line_wait_on_bit+0x13b/0x190
[ 329.463919][ T39] ? __queue_work+0xc70/0x1010
[ 329.463943][ T39] ? __pfx_bit_wait+0x10/0x10
[ 329.463962][ T39] ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[ 329.463986][ T39] ? __pfx_wake_bit_function+0x10/0x10
[ 329.464035][ T39] gfs2_recover_journal+0xda/0x140
[ 329.464056][ T39] init_journal+0x16ad/0x2280
[ 329.464086][ T39] ? init_inodes+0xdb/0x320
[ 329.464108][ T39] ? __pfx_init_journal+0x10/0x10
[ 329.464230][ T39] ? snprintf+0xe8/0x140
[ 329.464251][ T39] ? init_inodes+0xdb/0x320
[ 329.464269][ T39] ? __pfx_snprintf+0x10/0x10
[ 329.464288][ T39] ? gfs2_glock_nq_num+0x13d/0x170
[ 329.464311][ T39] init_inodes+0xdb/0x320
[ 329.464333][ T39] gfs2_fill_super+0x1a92/0x2220
[ 329.464367][ T39] ? __pfx_gfs2_fill_super+0x10/0x10
[ 329.464385][ T39] ? rt_spin_unlock+0x14f/0x200
[ 329.464410][ T39] ? init_locking+0xb8/0x210
[ 329.464428][ T39] ? sb_set_blocksize+0x11b/0x210
[ 329.464449][ T39] ? setup_bdev_super+0x4c1/0x5b0
[ 329.464477][ T39] get_tree_bdev_flags+0x431/0x4f0
[ 329.464503][ T39] ? __pfx_gfs2_fill_super+0x10/0x10
[ 329.464522][ T39] ? __pfx_get_tree_bdev_flags+0x10/0x10
[ 329.464545][ T39] ? __pfx_vfs_parse_comma_sep+0x10/0x10
[ 329.464580][ T39] gfs2_get_tree+0x51/0x1e0
[ 329.464602][ T39] vfs_get_tree+0x92/0x2a0
[ 329.464629][ T39] do_new_mount+0x341/0xd30
[ 329.464648][ T39] ? apparmor_capable+0x126/0x170
[ 329.464675][ T39] ? __pfx_do_new_mount+0x10/0x10
[ 329.464696][ T39] ? ns_capable+0x89/0xe0
[ 329.464723][ T39] ? user_path_at+0xd4/0x160
[ 329.464751][ T39] ? user_path_at+0xd4/0x160
[ 329.464776][ T39] __se_sys_mount+0x31d/0x420
[ 329.464803][ T39] ? __pfx___se_sys_mount+0x10/0x10
[ 329.464830][ T39] ? __x64_sys_mount+0x20/0xc0
[ 329.464850][ T39] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 329.464871][ T39] do_syscall_64+0x15f/0xf80
[ 329.464891][ T39] ? trace_irq_disable+0x3b/0x140
[ 329.464915][ T39] ? clear_bhb_loop+0x40/0x90
[ 329.464937][ T39] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 329.464956][ T39] RIP: 0033:0x7f88a99db5ca
[ 329.464973][ T39] RSP: 002b:00007f88a903de58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
[ 329.464992][ T39] RAX: ffffffffffffffda RBX: 00007f88a903dee0 RCX: 00007f88a99db5ca
[ 329.465006][ T39] RDX: 000020000001f680 RSI: 0000200000000040 RDI: 00007f88a903dea0
[ 329.465018][ T39] RBP: 000020000001f680 R08: 00007f88a903dee0 R09: 0000000000000084
[ 329.465031][ T39] R10: 0000000000000084 R11: 0000000000000246 R12: 0000200000000040
[ 329.465043][ T39] R13: 00007f88a903dea0 R14: 000000000001f790 R15: 00002000000001c0
[ 329.465073][ T39]
[ 329.465107][ T39]
[ 329.465107][ T39] Showing all locks held in the system:
[ 329.465116][ T39] 2 locks held by kworker/u8:0/12:
[ 329.465127][ T39] #0: ffff88813fe84138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.479713][ T39] #1: ffffc90000117c40 ((reaper_work).work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.479763][ T39] 4 locks held by pr/legacy/17:
[ 329.479773][ T39] #0: ffffffff8dfba4e0 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[ 329.479814][ T39] #1: ffffffff8dea1dd8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[ 329.479868][ T39] #2: ffffffff99b6ead8 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90
[ 329.479925][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.479975][ T39] 1 lock held by khungtaskd/39:
[ 329.479986][ T39] #0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 329.480037][ T39] 4 locks held by kworker/u8:7/832:
[ 329.480048][ T39] #0: ffff888031ff9138 ((wq_completion)bat_events){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.480093][ T39] #1: ffffc90005077c40 ((work_completion)(&(&bat_priv->dat.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.480149][ T39] #2: ffffffff8de5f380 (local_bh){.+.+}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[ 329.480195][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __local_bh_disable_ip+0x3c/0x420
[ 329.480242][ T39] 4 locks held by kworker/u8:8/1035:
[ 329.480252][ T39] #0: ffff88813fe84138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.480297][ T39] #1: ffffc90005c9fc40 ((work_completion)(&(&kfence_timer)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.480341][ T39] #2: ffffffff8de57d10 (cpu_hotplug_lock){++++}-{0:0}, at: static_key_enable+0x12/0x20
[ 329.480385][ T39] #3: ffffffff8e09bc98 (jump_label_mutex){+.+.}-{4:4}, at: static_key_enable_cpuslocked+0xcb/0x240
[ 329.480432][ T39] 2 locks held by kworker/u8:9/1059:
[ 329.480442][ T39] #0: ffff88813fe84138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.480486][ T39] #1: ffffc90005cdfc40 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.480548][ T39] 2 locks held by klogd/4965:
[ 329.480559][ T39] #0: ffff888036e0cb08 (&u->lock){+.+.}-{3:3}, at: unix_dgram_sendmsg+0x907/0x18d0
[ 329.480603][ T39] #1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.480649][ T39] 1 lock held by udevd/4976:
[ 329.480659][ T39] #0: ffff88801badb2c0 (&root->kernfs_iattr_rwsem){++++}-{4:4}, at: kernfs_iop_permission+0x7f/0x430
[ 329.480707][ T39] 2 locks held by getty/5360:
[ 329.480717][ T39] #0: ffff888024bfd0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 329.480761][ T39] #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[ 329.480803][ T39] 3 locks held by kworker/0:4/5740:
[ 329.480813][ T39] #0: ffff88813fe42538 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.480859][ T39] #1: ffffc90003b17c40 ((work_completion)(&(&gc_work->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.480905][ T39] #2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: gc_worker+0x265/0x12e0
[ 329.480955][ T39] 1 lock held by udevd/6792:
[ 329.480965][ T39] #0: ffff88803d696bb0 (&mm->mmap_lock){++++}-{4:4}, at: __vm_munmap+0x163/0x3d0
[ 329.481009][ T39] 2 locks held by kworker/0:6/6795:
[ 329.481019][ T39] #0: ffff88801efb9538 ((wq_completion)gfs2_recovery){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 329.481063][ T39] #1: ffffc90004737c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 329.481110][ T39] 1 lock held by udevd/6798:
[ 329.494360][ T39] #0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: path_init+0x12d/0x14d0
[ 329.494478][ T39] 3 locks held by udevd/6799:
[ 329.494487][ T39] #0: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: folio_lruvec_lock_irqsave+0x24/0x540
[ 329.494533][ T39] #1: ffff888034c944f0 (&lruvec->lru_lock){+.+.}-{3:3}, at: folio_lruvec_lock_irqsave+0x290/0x540
[ 329.494577][ T39] #2: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.494626][ T39] 1 lock held by udevd/6812:
[ 329.494636][ T39] #0: ffff888023610948 (&sb->s_type->i_mutex_key#10){++++}-{4:4}, at: blkdev_read_iter+0x2ff/0x440
[ 329.494686][ T39] 1 lock held by syz.1.25/6835:
[ 329.494696][ T39] #0: ffff88802a1b20d0 (&type->s_umount_key#54/1){+.+.}-{4:4}, at: alloc_super+0x28c/0xac0
[ 329.494753][ T39] 5 locks held by syz.5.250/7723:
[ 329.494763][ T39] #0: ffff888039d0c1c8 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[ 329.494803][ T39] #1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x200
[ 329.494852][ T39] #2: ffff88813fe671d8 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x13d/0x210
[ 329.494904][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.494950][ T39] #4: ffff8880b8633d90 ((lock)#2){+.+.}-{3:3}, at: __folio_batch_add_and_move+0x283/0xa90
[ 329.495013][ T39] 8 locks held by syz.2.252/7734:
[ 329.495024][ T39] #0: ffff88803fb04448 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[ 329.495064][ T39] #1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x200
[ 329.495108][ T39] #2: ffff888036dc8718 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x13d/0x210
[ 329.495153][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.495191][ T39] #4: ffff8880b8633d90 ((lock)#2){+.+.}-{3:3}, at: __folio_batch_add_and_move+0x283/0xa90
[ 329.495229][ T39] #5: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.495271][ T39] #6: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: folio_lruvec_lock_irqsave+0x24/0x540
[ 329.495316][ T39] #7: ffff888034c944f0 (&lruvec->lru_lock){+.+.}-{3:3}, at: folio_lruvec_lock_irqsave+0x290/0x540
[ 329.495359][ T39] 5 locks held by syz.4.253/7738:
[ 329.495369][ T39] #0: ffff88802a3b4308 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[ 329.495417][ T39] #1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x200
[ 329.495461][ T39] #2: ffff888039c6ea18 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x13d/0x210
[ 329.495510][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.495556][ T39] #4: ffff8880b8633d90 ((lock)#2){+.+.}-{3:3}, at: __folio_batch_add_and_move+0x283/0xa90
[ 329.495601][ T39] 5 locks held by syz.3.254/7740:
[ 329.495612][ T39] #0: ffff888041fac808 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[ 329.495651][ T39] #1: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x200
[ 329.495695][ T39] #2: ffff888039c6e118 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x13d/0x210
[ 329.495744][ T39] #3: ffffffff8dfc8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 329.495790][ T39] #4: ffff8880b8633d90 ((lock)#2){+.+.}-{3:3}, at: __folio_batch_add_and_move+0x283/0xa90
[ 329.505833][ T39]
[ 329.505840][ T39] =============================================
[ 329.505840][ T39]
[ 329.505863][ T39] NMI backtrace for cpu 0
[ 329.505877][ T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 329.505897][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 329.505908][ T39] Call Trace:
[ 329.505916][ T39]
[ 329.505924][ T39] dump_stack_lvl+0xe8/0x150
[ 329.505947][ T39] nmi_cpu_backtrace+0x274/0x2d0
[ 329.505976][ T39] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 329.505999][ T39] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 329.506027][ T39] sys_info+0x135/0x170
[ 329.506049][ T39] watchdog+0xfd3/0x1030
[ 329.506080][ T39] ? watchdog+0x1c9/0x1030
[ 329.506108][ T39] kthread+0x388/0x470
[ 329.506127][ T39] ? __pfx_watchdog+0x10/0x10
[ 329.506148][ T39] ? __pfx_kthread+0x10/0x10
[ 329.506167][ T39] ret_from_fork+0x514/0xb70
[ 329.506191][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 329.506212][ T39] ? __switch_to+0xc79/0x1410
[ 329.506233][ T39] ? __pfx_kthread+0x10/0x10
[ 329.506252][ T39] ret_from_fork_asm+0x1a/0x30
[ 329.506288][ T39]
[ 329.506312][ T39] Sending NMI from CPU 0 to CPUs 1:
[ 329.506343][ C1] NMI backtrace for cpu 1
[ 329.506356][ C1] CPU: 1 UID: 0 PID: 17 Comm: pr/legacy Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 329.506373][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 329.506382][ C1] RIP: 0010:io_serial_in+0x77/0xc0
[ 329.506408][ C1] Code: e8 de 21 87 fc 44 89 f9 d3 e3 49 83 ee 80 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 bf bb f0 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[ 329.506421][ C1] RSP: 0018:ffffc900001679d0 EFLAGS: 00000202
[ 329.506435][ C1] RAX: 1ffffffff336dd00 RBX: 00000000000003fd RCX: 0000000000000000
[ 329.506447][ C1] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000000
[ 329.506456][ C1] RBP: ffffffff99b6ed90 R08: 0000000000000000 R09: 0000000000000000
[ 329.506467][ C1] R10: dffffc0000000000 R11: ffffffff853da9e0 R12: dffffc0000000000
[ 329.506479][ C1] R13: 0000000000000000 R14: ffffffff99b6eb00 R15: 0000000000000000
[ 329.506489][ C1] FS: 0000000000000000(0000) GS:ffff88812601f000(0000) knlGS:0000000000000000
[ 329.506502][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 329.506513][ C1] CR2: 00007f5239233540 CR3: 000000004135a000 CR4: 00000000003526f0
[ 329.506528][ C1] Call Trace:
[ 329.506535][ C1]
[ 329.506542][ C1] wait_for_lsr+0x1aa/0x2f0
[ 329.506566][ C1] serial8250_console_write+0x120d/0x1b90
[ 329.506594][ C1] ? __pfx_serial8250_console_write+0x10/0x10
[ 329.506615][ C1] ? console_flush_one_record+0xfa/0xb90
[ 329.506634][ C1] ? console_flush_one_record+0x48f/0xb90
[ 329.506655][ C1] console_flush_one_record+0x68b/0xb90
[ 329.506674][ C1] ? console_flush_one_record+0xfa/0xb90
[ 329.506696][ C1] ? __pfx_console_flush_one_record+0x10/0x10
[ 329.506712][ C1] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 329.506737][ C1] legacy_kthread_func+0x1b6/0x250
[ 329.506754][ C1] ? __pfx_legacy_kthread_func+0x10/0x10
[ 329.506774][ C1] ? __pfx_autoremove_wake_function+0x10/0x10
[ 329.506798][ C1] ? __kthread_parkme+0x7a/0x1f0
[ 329.506823][ C1] kthread+0x388/0x470
[ 329.506839][ C1] ? __pfx_legacy_kthread_func+0x10/0x10
[ 329.506853][ C1] ? __pfx_kthread+0x10/0x10
[ 329.506869][ C1] ret_from_fork+0x514/0xb70
[ 329.506888][ C1] ? __pfx_ret_from_fork+0x10/0x10
[ 329.506905][ C1] ? __switch_to+0xc79/0x1410
[ 329.506922][ C1] ? __pfx_kthread+0x10/0x10
[ 329.506937][ C1] ret_from_fork_asm+0x1a/0x30
[ 329.506963][ C1]
[ 329.518279][ T39] Kernel panic - not syncing: hung_task: blocked tasks
[ 329.518303][ T39] CPU: 0 UID: 0 PID: 39 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 329.518325][ T39] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 329.518335][ T39] Call Trace:
[ 329.518342][ T39]
[ 329.518350][ T39] vpanic+0x56c/0xa60
[ 329.518377][ T39] ? __pfx___schedule+0x10/0x10
[ 329.518396][ T39] ? __pfx_vpanic+0x10/0x10
[ 329.518422][ T39] panic+0xc5/0xd0
[ 329.518442][ T39] ? __pfx_panic+0x10/0x10
[ 329.518464][ T39] ? preempt_schedule_thunk+0x16/0x40
[ 329.518485][ T39] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 329.518514][ T39] watchdog+0x102c/0x1030
[ 329.518546][ T39] ? watchdog+0x1c9/0x1030
[ 329.518579][ T39] kthread+0x388/0x470
[ 329.518598][ T39] ? __pfx_watchdog+0x10/0x10
[ 329.518620][ T39] ? __pfx_kthread+0x10/0x10
[ 329.518644][ T39] ret_from_fork+0x514/0xb70
[ 329.518668][ T39] ? __pfx_ret_from_fork+0x10/0x10
[ 329.518689][ T39] ? __switch_to+0xc79/0x1410
[ 329.518709][ T39] ? __pfx_kthread+0x10/0x10
[ 329.518729][ T39] ret_from_fork_asm+0x1a/0x30
[ 329.518765][ T39]
[ 329.518925][ T39] Kernel Offset: disabled