create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 236.765638][ T6245] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 236.793917][ T6245] CPU: 1 PID: 6245 Comm: syz.0.284 Not tainted syzkaller #0 [ 236.801504][ T6245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 236.811888][ T6245] Call Trace: [ 236.815288][ T6245] [ 236.818309][ T6245] dump_stack_lvl+0x188/0x250 [ 236.823173][ T6245] ? show_regs_print_info+0x20/0x20 [ 236.828407][ T6245] ? load_image+0x410/0x410 [ 236.832945][ T6245] sysfs_create_dir_ns+0x26a/0x290 [ 236.838301][ T6245] ? sysfs_warn_dup+0xa0/0xa0 [ 236.843104][ T6245] ? do_raw_spin_unlock+0x11d/0x230 [ 236.848332][ T6245] kobject_add_internal+0x5ba/0xcd0 [ 236.853586][ T6245] kobject_init_and_add+0x128/0x190 [ 236.858969][ T6245] ? lockdep_softirqs_off+0x430/0x430 [ 236.864533][ T6245] ? kobject_add+0x230/0x230 [ 236.869237][ T6245] ? __init_swait_queue_head+0xa4/0x140 [ 236.874899][ T6245] gfs2_sys_fs_add+0x24f/0x4b0 [ 236.879694][ T6245] ? gfs2_recover_set+0x240/0x240 [ 236.884818][ T6245] ? snprintf+0xe5/0x140 [ 236.889079][ T6245] ? __free_pages+0x95/0x1a0 [ 236.893680][ T6245] ? vscnprintf+0x80/0x80 [ 236.898028][ T6245] gfs2_fill_super+0x11ed/0x1ea0 [ 236.903227][ T6245] ? gfs2_reconfigure+0xd80/0xd80 [ 236.908277][ T6245] ? sb_set_blocksize+0xa5/0xe0 [ 236.913201][ T6245] get_tree_bdev+0x3e6/0x610 [ 236.917899][ T6245] ? gfs2_reconfigure+0xd80/0xd80 [ 236.923052][ T6245] gfs2_get_tree+0x4d/0x1e0 [ 236.927668][ T6245] vfs_get_tree+0x88/0x270 [ 236.932191][ T6245] do_new_mount+0x247/0xa40 [ 236.936908][ T6245] __se_sys_mount+0x2e3/0x3d0 [ 236.941599][ T6245] ? __x64_sys_mount+0xc0/0xc0 [ 236.946374][ T6245] ? lockdep_hardirqs_on+0x94/0x140 [ 236.951579][ T6245] ? __x64_sys_mount+0x1c/0xc0 [ 236.956436][ T6245] do_syscall_64+0x4c/0xa0 [ 236.960957][ T6245] ? clear_bhb_loop+0x30/0x80 [ 236.965818][ T6245] ? clear_bhb_loop+0x30/0x80 [ 236.970502][ T6245] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 236.976490][ T6245] RIP: 0033:0x7f364914634a [ 236.981001][ T6245] 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 [ 237.001858][ T6245] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 237.010553][ T6245] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 237.018695][ T6245] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 237.026690][ T6245] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 237.034762][ T6245] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 237.042824][ T6245] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 237.051027][ T6245] [ 237.072388][ T6253] loop1: detected capacity change from 0 to 32768 [ 237.085668][ T6251] CPU: 0 PID: 6251 Comm: syz.2.287 Not tainted syzkaller #0 [ 237.093102][ T6251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 237.103163][ T6251] Call Trace: [ 237.106461][ T6251] [ 237.109396][ T6251] dump_stack_lvl+0x188/0x250 [ 237.114079][ T6251] ? show_regs_print_info+0x20/0x20 [ 237.119279][ T6251] ? load_image+0x410/0x410 [ 237.123796][ T6251] sysfs_create_dir_ns+0x26a/0x290 [ 237.128927][ T6251] ? sysfs_warn_dup+0xa0/0xa0 [ 237.133788][ T6251] ? do_raw_spin_unlock+0x11d/0x230 [ 237.138499][ T6248] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 237.139019][ T6251] kobject_add_internal+0x5ba/0xcd0 [ 237.154055][ T6248] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 237.158227][ T6251] kobject_init_and_add+0x128/0x190 [ 237.168107][ T6245] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 237.170768][ T6251] ? lockdep_softirqs_off+0x430/0x430 [ 237.188381][ T6245] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 237.190511][ T6251] ? kobject_add+0x230/0x230 [ 237.202425][ T6251] ? __init_swait_queue_head+0xa4/0x140 [ 237.208035][ T6251] gfs2_sys_fs_add+0x24f/0x4b0 [ 237.212988][ T6251] ? gfs2_recover_set+0x240/0x240 [ 237.218039][ T6251] ? snprintf+0xe5/0x140 [ 237.222587][ T6251] ? __free_pages+0x95/0x1a0 [ 237.227266][ T6251] ? vscnprintf+0x80/0x80 [ 237.231594][ T6251] gfs2_fill_super+0x11ed/0x1ea0 [ 237.236647][ T6251] ? gfs2_reconfigure+0xd80/0xd80 [ 237.241855][ T6251] ? sb_set_blocksize+0xa5/0xe0 [ 237.247011][ T6251] get_tree_bdev+0x3e6/0x610 [ 237.251692][ T6251] ? gfs2_reconfigure+0xd80/0xd80 [ 237.256712][ T6251] gfs2_get_tree+0x4d/0x1e0 [ 237.261302][ T6251] vfs_get_tree+0x88/0x270 [ 237.265706][ T6251] do_new_mount+0x247/0xa40 [ 237.270678][ T6251] __se_sys_mount+0x2e3/0x3d0 [ 237.275461][ T6251] ? __x64_sys_mount+0xc0/0xc0 [ 237.280252][ T6251] ? lockdep_hardirqs_on+0x94/0x140 [ 237.285454][ T6251] ? __x64_sys_mount+0x1c/0xc0 [ 237.291802][ T6251] do_syscall_64+0x4c/0xa0 [ 237.296372][ T6251] ? clear_bhb_loop+0x30/0x80 [ 237.301046][ T6251] ? clear_bhb_loop+0x30/0x80 [ 237.305710][ T6251] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 237.311695][ T6251] RIP: 0033:0x7fa3eeafe34a [ 237.316113][ T6251] 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 [ 237.336119][ T6251] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 237.344532][ T6251] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 237.352527][ T6251] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 237.360490][ T6251] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 237.368556][ T6251] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 237.376521][ T6251] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 237.384672][ T6251] [ 237.399076][ T6251] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 237.413745][ T6251] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 237.418281][ T6249] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 237.432304][ T6253] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 237.465596][ T4289] Bluetooth: hci5: command 0x0406 tx timeout [ 237.472172][ T6253] CPU: 1 PID: 6253 Comm: syz.1.288 Not tainted syzkaller #0 [ 237.479472][ T6253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 237.489548][ T6253] Call Trace: [ 237.492846][ T6253] [ 237.495782][ T6253] dump_stack_lvl+0x188/0x250 [ 237.500475][ T6253] ? show_regs_print_info+0x20/0x20 [ 237.505693][ T6253] ? load_image+0x410/0x410 [ 237.510228][ T6253] sysfs_create_dir_ns+0x26a/0x290 [ 237.515792][ T6253] ? sysfs_warn_dup+0xa0/0xa0 [ 237.520489][ T6253] ? do_raw_spin_unlock+0x11d/0x230 [ 237.525706][ T6253] kobject_add_internal+0x5ba/0xcd0 [ 237.530970][ T6253] kobject_init_and_add+0x128/0x190 [ 237.536261][ T6253] ? lockdep_softirqs_off+0x430/0x430 [ 237.541735][ T6253] ? kobject_add+0x230/0x230 [ 237.546354][ T6253] ? __init_swait_queue_head+0xa4/0x140 [ 237.551922][ T6253] gfs2_sys_fs_add+0x24f/0x4b0 [ 237.556929][ T6253] ? gfs2_recover_set+0x240/0x240 [ 237.561964][ T6253] ? snprintf+0xe5/0x140 [ 237.566369][ T6253] ? __free_pages+0x95/0x1a0 [ 237.570971][ T6253] ? vscnprintf+0x80/0x80 [ 237.575402][ T6253] gfs2_fill_super+0x11ed/0x1ea0 [ 237.580359][ T6253] ? gfs2_reconfigure+0xd80/0xd80 [ 237.585399][ T6253] ? sb_set_blocksize+0xa5/0xe0 [ 237.590346][ T6253] get_tree_bdev+0x3e6/0x610 [ 237.594948][ T6253] ? gfs2_reconfigure+0xd80/0xd80 [ 237.599971][ T6253] gfs2_get_tree+0x4d/0x1e0 [ 237.604476][ T6253] vfs_get_tree+0x88/0x270 [ 237.608983][ T6253] do_new_mount+0x247/0xa40 [ 237.613483][ T6253] __se_sys_mount+0x2e3/0x3d0 [ 237.618160][ T6253] ? __x64_sys_mount+0xc0/0xc0 [ 237.622964][ T6253] ? lockdep_hardirqs_on+0x94/0x140 [ 237.628164][ T6253] ? __x64_sys_mount+0x1c/0xc0 [ 237.632928][ T6253] do_syscall_64+0x4c/0xa0 [ 237.637565][ T6253] ? clear_bhb_loop+0x30/0x80 [ 237.642246][ T6253] ? clear_bhb_loop+0x30/0x80 [ 237.646925][ T6253] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 237.652906][ T6253] RIP: 0033:0x7f298d04b34a [ 237.657363][ T6253] 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 [ 237.677138][ T6253] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 237.685566][ T6253] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 237.693631][ T6253] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 237.701610][ T6253] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 237.709675][ T6253] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 237.718004][ T6253] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 237.726010][ T6253] [ 237.737636][ T6249] CPU: 0 PID: 6249 Comm: syz.4.285 Not tainted syzkaller #0 [ 237.744956][ T6249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 237.755013][ T6249] Call Trace: [ 237.758299][ T6249] [ 237.761238][ T6249] dump_stack_lvl+0x188/0x250 [ 237.765930][ T6249] ? show_regs_print_info+0x20/0x20 [ 237.771142][ T6249] ? load_image+0x410/0x410 [ 237.775759][ T6249] sysfs_create_dir_ns+0x26a/0x290 [ 237.780887][ T6249] ? sysfs_warn_dup+0xa0/0xa0 [ 237.785568][ T6249] ? do_raw_spin_unlock+0x11d/0x230 [ 237.790865][ T6249] kobject_add_internal+0x5ba/0xcd0 [ 237.796080][ T6249] kobject_init_and_add+0x128/0x190 [ 237.801289][ T6249] ? lockdep_softirqs_off+0x430/0x430 [ 237.806679][ T6249] ? kobject_add+0x230/0x230 [ 237.811280][ T6249] ? __init_swait_queue_head+0xa4/0x140 [ 237.816848][ T6249] gfs2_sys_fs_add+0x24f/0x4b0 [ 237.821625][ T6249] ? gfs2_recover_set+0x240/0x240 [ 237.826662][ T6249] ? snprintf+0xe5/0x140 [ 237.830913][ T6249] ? __free_pages+0x95/0x1a0 [ 237.835523][ T6249] ? vscnprintf+0x80/0x80 [ 237.839874][ T6249] gfs2_fill_super+0x11ed/0x1ea0 [ 237.844831][ T6249] ? gfs2_reconfigure+0xd80/0xd80 [ 237.849906][ T6249] ? sb_set_blocksize+0xa5/0xe0 [ 237.854772][ T6249] get_tree_bdev+0x3e6/0x610 [ 237.859374][ T6249] ? gfs2_reconfigure+0xd80/0xd80 [ 237.864498][ T6249] gfs2_get_tree+0x4d/0x1e0 [ 237.869015][ T6249] vfs_get_tree+0x88/0x270 [ 237.873527][ T6249] do_new_mount+0x247/0xa40 [ 237.878047][ T6249] __se_sys_mount+0x2e3/0x3d0 [ 237.882737][ T6249] ? __x64_sys_mount+0xc0/0xc0 [ 237.887512][ T6249] ? lockdep_hardirqs_on+0x94/0x140 [ 237.892722][ T6249] ? __x64_sys_mount+0x1c/0xc0 [ 237.897497][ T6249] do_syscall_64+0x4c/0xa0 [ 237.901936][ T6249] ? clear_bhb_loop+0x30/0x80 [ 237.906622][ T6249] ? clear_bhb_loop+0x30/0x80 [ 237.911308][ T6249] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 237.917211][ T6249] RIP: 0033:0x7f1f2704534a [ 237.921799][ T6249] 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 [ 237.935181][ T6253] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 237.942209][ T6249] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 237.956348][ T6253] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 237.964432][ T6249] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 237.964452][ T6249] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 237.964463][ T6249] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 237.964474][ T6249] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 237.964485][ T6249] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 237.964509][ T6249] [ 238.050889][ T6249] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 238.083588][ T6249] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files 2026/06/27 02:09:13 executed programs: 285 [ 238.900756][ T6257] set_capacity_and_notify: 1 callbacks suppressed [ 238.900772][ T6257] loop0: detected capacity change from 0 to 32768 [ 238.911274][ T6255] loop5: detected capacity change from 0 to 32768 [ 238.952051][ T6255] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 238.976914][ T6257] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 239.003959][ T6257] CPU: 0 PID: 6257 Comm: syz.0.290 Not tainted syzkaller #0 [ 239.011301][ T6257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 239.021462][ T6257] Call Trace: [ 239.024751][ T6257] [ 239.027683][ T6257] dump_stack_lvl+0x188/0x250 [ 239.032366][ T6257] ? show_regs_print_info+0x20/0x20 [ 239.038076][ T6257] ? load_image+0x410/0x410 [ 239.042830][ T6257] sysfs_create_dir_ns+0x26a/0x290 [ 239.048072][ T6257] ? sysfs_warn_dup+0xa0/0xa0 [ 239.052779][ T6257] ? do_raw_spin_unlock+0x11d/0x230 [ 239.057995][ T6257] kobject_add_internal+0x5ba/0xcd0 [ 239.063202][ T6257] kobject_init_and_add+0x128/0x190 [ 239.068676][ T6257] ? lockdep_softirqs_off+0x430/0x430 [ 239.074065][ T6257] ? kobject_add+0x230/0x230 [ 239.078930][ T6257] ? __init_swait_queue_head+0xa4/0x140 [ 239.084482][ T6257] gfs2_sys_fs_add+0x24f/0x4b0 [ 239.089247][ T6257] ? gfs2_recover_set+0x240/0x240 [ 239.094269][ T6257] ? snprintf+0xe5/0x140 [ 239.098520][ T6257] ? __free_pages+0x95/0x1a0 [ 239.103124][ T6257] ? vscnprintf+0x80/0x80 [ 239.107476][ T6257] gfs2_fill_super+0x11ed/0x1ea0 [ 239.112439][ T6257] ? gfs2_reconfigure+0xd80/0xd80 [ 239.117498][ T6257] ? sb_set_blocksize+0xa5/0xe0 [ 239.122375][ T6257] get_tree_bdev+0x3e6/0x610 [ 239.127006][ T6257] ? gfs2_reconfigure+0xd80/0xd80 [ 239.132523][ T6257] gfs2_get_tree+0x4d/0x1e0 [ 239.137154][ T6257] vfs_get_tree+0x88/0x270 [ 239.141706][ T6257] do_new_mount+0x247/0xa40 [ 239.146244][ T6257] __se_sys_mount+0x2e3/0x3d0 [ 239.150953][ T6257] ? __x64_sys_mount+0xc0/0xc0 [ 239.155725][ T6257] ? lockdep_hardirqs_on+0x94/0x140 [ 239.160938][ T6257] ? __x64_sys_mount+0x1c/0xc0 [ 239.165811][ T6257] do_syscall_64+0x4c/0xa0 [ 239.170330][ T6257] ? clear_bhb_loop+0x30/0x80 [ 239.175022][ T6257] ? clear_bhb_loop+0x30/0x80 [ 239.179714][ T6257] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 239.185618][ T6257] RIP: 0033:0x7f364914634a [ 239.190036][ T6257] 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 [ 239.209821][ T6257] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 239.218252][ T6257] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 239.226320][ T6257] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 239.234313][ T6257] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 239.242297][ T6257] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 239.250288][ T6257] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 239.258309][ T6257] [ 239.261373][ T6255] CPU: 1 PID: 6255 Comm: syz.5.289 Not tainted syzkaller #0 [ 239.268890][ T6255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 239.279229][ T6255] Call Trace: [ 239.282882][ T6255] [ 239.285860][ T6255] dump_stack_lvl+0x188/0x250 [ 239.290671][ T6255] ? show_regs_print_info+0x20/0x20 [ 239.295894][ T6255] ? load_image+0x410/0x410 [ 239.300441][ T6255] sysfs_create_dir_ns+0x26a/0x290 [ 239.305577][ T6255] ? sysfs_warn_dup+0xa0/0xa0 [ 239.310280][ T6255] ? do_raw_spin_unlock+0x11d/0x230 [ 239.315491][ T6255] kobject_add_internal+0x5ba/0xcd0 [ 239.320711][ T6255] kobject_init_and_add+0x128/0x190 [ 239.325930][ T6255] ? lockdep_softirqs_off+0x430/0x430 [ 239.331312][ T6255] ? kobject_add+0x230/0x230 [ 239.335932][ T6255] ? __init_swait_queue_head+0xa4/0x140 [ 239.341494][ T6255] gfs2_sys_fs_add+0x24f/0x4b0 [ 239.346265][ T6255] ? gfs2_recover_set+0x240/0x240 [ 239.351398][ T6255] ? snprintf+0xe5/0x140 [ 239.352078][ T6259] loop2: detected capacity change from 0 to 32768 [ 239.355645][ T6255] ? __free_pages+0x95/0x1a0 [ 239.355668][ T6255] ? vscnprintf+0x80/0x80 [ 239.355690][ T6255] gfs2_fill_super+0x11ed/0x1ea0 [ 239.355717][ T6255] ? gfs2_reconfigure+0xd80/0xd80 [ 239.355747][ T6255] ? sb_set_blocksize+0xa5/0xe0 [ 239.386410][ T6255] get_tree_bdev+0x3e6/0x610 [ 239.391024][ T6255] ? gfs2_reconfigure+0xd80/0xd80 [ 239.396277][ T6255] gfs2_get_tree+0x4d/0x1e0 [ 239.400866][ T6255] vfs_get_tree+0x88/0x270 [ 239.405394][ T6255] do_new_mount+0x247/0xa40 [ 239.409922][ T6255] __se_sys_mount+0x2e3/0x3d0 [ 239.414621][ T6255] ? __x64_sys_mount+0xc0/0xc0 [ 239.419404][ T6255] ? lockdep_hardirqs_on+0x94/0x140 [ 239.424702][ T6255] ? __x64_sys_mount+0x1c/0xc0 [ 239.429491][ T6255] do_syscall_64+0x4c/0xa0 [ 239.434109][ T6255] ? clear_bhb_loop+0x30/0x80 [ 239.438801][ T6255] ? clear_bhb_loop+0x30/0x80 [ 239.439151][ T6262] loop4: detected capacity change from 0 to 32768 [ 239.443585][ T6255] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 239.443606][ T6255] RIP: 0033:0x7fb1ebe1134a [ 239.443621][ T6255] 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 [ 239.443633][ T6255] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 239.443651][ T6255] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 239.443662][ T6255] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 239.488833][ T6262] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 239.489839][ T6255] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 239.522796][ T6255] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 239.530788][ T6255] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 239.538790][ T6255] [ 239.560651][ T6259] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 239.584160][ T6262] CPU: 0 PID: 6262 Comm: syz.4.292 Not tainted syzkaller #0 [ 239.591756][ T6262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 239.602077][ T6262] Call Trace: [ 239.605448][ T6262] [ 239.608467][ T6262] dump_stack_lvl+0x188/0x250 [ 239.613152][ T6262] ? show_regs_print_info+0x20/0x20 [ 239.618370][ T6262] ? load_image+0x410/0x410 [ 239.622906][ T6262] sysfs_create_dir_ns+0x26a/0x290 [ 239.628034][ T6262] ? sysfs_warn_dup+0xa0/0xa0 [ 239.632809][ T6262] ? do_raw_spin_unlock+0x11d/0x230 [ 239.638117][ T6262] kobject_add_internal+0x5ba/0xcd0 [ 239.643343][ T6262] kobject_init_and_add+0x128/0x190 [ 239.648645][ T6262] ? lockdep_softirqs_off+0x430/0x430 [ 239.654055][ T6262] ? kobject_add+0x230/0x230 [ 239.658747][ T6262] ? __init_swait_queue_head+0xa4/0x140 [ 239.664325][ T6262] gfs2_sys_fs_add+0x24f/0x4b0 [ 239.669201][ T6262] ? gfs2_recover_set+0x240/0x240 [ 239.674358][ T6262] ? snprintf+0xe5/0x140 [ 239.678617][ T6262] ? __free_pages+0x95/0x1a0 [ 239.682972][ T6263] loop1: detected capacity change from 0 to 32768 [ 239.683215][ T6262] ? vscnprintf+0x80/0x80 [ 239.694028][ T6262] gfs2_fill_super+0x11ed/0x1ea0 [ 239.698984][ T6262] ? gfs2_reconfigure+0xd80/0xd80 [ 239.704031][ T6262] ? sb_set_blocksize+0xa5/0xe0 [ 239.709167][ T6262] get_tree_bdev+0x3e6/0x610 [ 239.713787][ T6262] ? gfs2_reconfigure+0xd80/0xd80 [ 239.718813][ T6262] gfs2_get_tree+0x4d/0x1e0 [ 239.723324][ T6262] vfs_get_tree+0x88/0x270 [ 239.727756][ T6262] do_new_mount+0x247/0xa40 [ 239.732280][ T6262] __se_sys_mount+0x2e3/0x3d0 [ 239.736974][ T6262] ? __x64_sys_mount+0xc0/0xc0 [ 239.741853][ T6262] ? lockdep_hardirqs_on+0x94/0x140 [ 239.747063][ T6262] ? __x64_sys_mount+0x1c/0xc0 [ 239.751843][ T6262] do_syscall_64+0x4c/0xa0 [ 239.752919][ T6263] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 239.756260][ T6262] ? clear_bhb_loop+0x30/0x80 [ 239.756280][ T6262] ? clear_bhb_loop+0x30/0x80 [ 239.756295][ T6262] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 239.756318][ T6262] RIP: 0033:0x7f1f2704534a [ 239.756335][ T6262] 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 [ 239.803744][ T6262] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 239.812179][ T6262] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 239.820158][ T6262] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 239.828138][ T6262] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 239.836126][ T6262] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 239.844103][ T6262] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 239.852098][ T6262] [ 239.855117][ T6263] CPU: 1 PID: 6263 Comm: syz.1.293 Not tainted syzkaller #0 [ 239.862502][ T6263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 239.872559][ T6263] Call Trace: [ 239.875842][ T6263] [ 239.878773][ T6263] dump_stack_lvl+0x188/0x250 [ 239.883477][ T6263] ? show_regs_print_info+0x20/0x20 [ 239.885754][ T6257] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 239.888677][ T6263] ? load_image+0x410/0x410 [ 239.888709][ T6263] sysfs_create_dir_ns+0x26a/0x290 [ 239.888729][ T6263] ? sysfs_warn_dup+0xa0/0xa0 [ 239.902643][ T6257] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 239.906994][ T6263] ? do_raw_spin_unlock+0x11d/0x230 [ 239.907018][ T6263] kobject_add_internal+0x5ba/0xcd0 [ 239.907041][ T6263] kobject_init_and_add+0x128/0x190 [ 239.907057][ T6263] ? lockdep_softirqs_off+0x430/0x430 [ 239.907077][ T6263] ? kobject_add+0x230/0x230 [ 239.907097][ T6263] ? __init_swait_queue_head+0xa4/0x140 [ 239.907120][ T6263] gfs2_sys_fs_add+0x24f/0x4b0 [ 239.907140][ T6263] ? gfs2_recover_set+0x240/0x240 [ 239.907158][ T6263] ? snprintf+0xe5/0x140 [ 239.907172][ T6263] ? __free_pages+0x95/0x1a0 [ 239.907191][ T6263] ? vscnprintf+0x80/0x80 [ 239.922220][ T6262] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 239.924134][ T6263] gfs2_fill_super+0x11ed/0x1ea0 [ 239.924168][ T6263] ? gfs2_reconfigure+0xd80/0xd80 [ 239.929873][ T6262] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 239.934629][ T6263] ? sb_set_blocksize+0xa5/0xe0 [ 239.934653][ T6263] get_tree_bdev+0x3e6/0x610 [ 239.941777][ T6255] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 239.945270][ T6263] ? gfs2_reconfigure+0xd80/0xd80 [ 239.945298][ T6263] gfs2_get_tree+0x4d/0x1e0 [ 239.945317][ T6263] vfs_get_tree+0x88/0x270 [ 239.945335][ T6263] do_new_mount+0x247/0xa40 [ 239.945358][ T6263] __se_sys_mount+0x2e3/0x3d0 [ 239.950196][ T6255] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 239.955456][ T6263] ? __x64_sys_mount+0xc0/0xc0 [ 239.955481][ T6263] ? lockdep_hardirqs_on+0x94/0x140 [ 239.955497][ T6263] ? __x64_sys_mount+0x1c/0xc0 [ 239.955514][ T6263] do_syscall_64+0x4c/0xa0 [ 239.955528][ T6263] ? clear_bhb_loop+0x30/0x80 [ 239.955544][ T6263] ? clear_bhb_loop+0x30/0x80 [ 239.955559][ T6263] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 239.955575][ T6263] RIP: 0033:0x7f298d04b34a [ 239.955592][ T6263] 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 [ 239.955606][ T6263] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 239.955633][ T6263] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 239.955645][ T6263] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 239.955656][ T6263] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 240.154599][ T6263] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 240.162587][ T6263] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 240.170672][ T6263] [ 240.173697][ T6259] CPU: 0 PID: 6259 Comm: syz.2.291 Not tainted syzkaller #0 [ 240.179902][ T6263] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 240.180990][ T6259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 240.195123][ T6263] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 240.204925][ T6259] Call Trace: [ 240.204946][ T6259] [ 240.204954][ T6259] dump_stack_lvl+0x188/0x250 [ 240.204981][ T6259] ? show_regs_print_info+0x20/0x20 [ 240.204997][ T6259] ? load_image+0x410/0x410 [ 240.205021][ T6259] sysfs_create_dir_ns+0x26a/0x290 [ 240.205040][ T6259] ? sysfs_warn_dup+0xa0/0xa0 [ 240.205054][ T6259] ? do_raw_spin_unlock+0x11d/0x230 [ 240.205074][ T6259] kobject_add_internal+0x5ba/0xcd0 [ 240.253347][ T6259] kobject_init_and_add+0x128/0x190 [ 240.258587][ T6259] ? lockdep_softirqs_off+0x430/0x430 [ 240.263982][ T6259] ? kobject_add+0x230/0x230 [ 240.268779][ T6259] ? __init_swait_queue_head+0xa4/0x140 [ 240.274600][ T6259] gfs2_sys_fs_add+0x24f/0x4b0 [ 240.279476][ T6259] ? gfs2_recover_set+0x240/0x240 [ 240.284520][ T6259] ? snprintf+0xe5/0x140 [ 240.288781][ T6259] ? __free_pages+0x95/0x1a0 [ 240.293365][ T6259] ? vscnprintf+0x80/0x80 [ 240.297797][ T6259] gfs2_fill_super+0x11ed/0x1ea0 [ 240.302729][ T6259] ? gfs2_reconfigure+0xd80/0xd80 [ 240.307747][ T6259] ? sb_set_blocksize+0xa5/0xe0 [ 240.312586][ T6259] get_tree_bdev+0x3e6/0x610 [ 240.317339][ T6259] ? gfs2_reconfigure+0xd80/0xd80 [ 240.322367][ T6259] gfs2_get_tree+0x4d/0x1e0 [ 240.326879][ T6259] vfs_get_tree+0x88/0x270 [ 240.331303][ T6259] do_new_mount+0x247/0xa40 [ 240.335811][ T6259] __se_sys_mount+0x2e3/0x3d0 [ 240.340478][ T6259] ? __x64_sys_mount+0xc0/0xc0 [ 240.345315][ T6259] ? lockdep_hardirqs_on+0x94/0x140 [ 240.350498][ T6259] ? __x64_sys_mount+0x1c/0xc0 [ 240.355280][ T6259] do_syscall_64+0x4c/0xa0 [ 240.359699][ T6259] ? clear_bhb_loop+0x30/0x80 [ 240.364376][ T6259] ? clear_bhb_loop+0x30/0x80 [ 240.369092][ T6259] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 240.375164][ T6259] RIP: 0033:0x7fa3eeafe34a [ 240.379597][ T6259] 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 [ 240.399565][ T6259] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 240.407995][ T6259] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 240.416039][ T6259] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 240.424016][ T6259] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 240.431997][ T6259] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 240.439977][ T6259] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 240.447986][ T6259] [ 240.455753][ T6259] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 240.471029][ T6259] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 241.647678][ T6267] loop4: detected capacity change from 0 to 32768 [ 241.689521][ T6267] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 241.707879][ T6271] loop5: detected capacity change from 0 to 32768 [ 241.726986][ T6266] loop1: detected capacity change from 0 to 32768 [ 241.728652][ T6267] CPU: 1 PID: 6267 Comm: syz.4.295 Not tainted syzkaller #0 [ 241.740711][ T6267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 241.750777][ T6267] Call Trace: [ 241.754064][ T6267] [ 241.756033][ T6273] loop2: detected capacity change from 0 to 32768 [ 241.756991][ T6267] dump_stack_lvl+0x188/0x250 [ 241.768067][ T6267] ? show_regs_print_info+0x20/0x20 [ 241.773507][ T6267] ? load_image+0x410/0x410 [ 241.778291][ T6267] sysfs_create_dir_ns+0x26a/0x290 [ 241.778358][ T6269] loop0: detected capacity change from 0 to 32768 [ 241.783409][ T6267] ? sysfs_warn_dup+0xa0/0xa0 [ 241.783427][ T6267] ? do_raw_spin_unlock+0x11d/0x230 [ 241.783447][ T6267] kobject_add_internal+0x5ba/0xcd0 [ 241.783469][ T6267] kobject_init_and_add+0x128/0x190 [ 241.783485][ T6267] ? lockdep_softirqs_off+0x430/0x430 [ 241.783507][ T6267] ? kobject_add+0x230/0x230 [ 241.783527][ T6267] ? __init_swait_queue_head+0xa4/0x140 [ 241.783550][ T6267] gfs2_sys_fs_add+0x24f/0x4b0 [ 241.783570][ T6267] ? gfs2_recover_set+0x240/0x240 [ 241.783585][ T6267] ? snprintf+0xe5/0x140 [ 241.783599][ T6267] ? __free_pages+0x95/0x1a0 [ 241.783618][ T6267] ? vscnprintf+0x80/0x80 [ 241.783642][ T6267] gfs2_fill_super+0x11ed/0x1ea0 [ 241.853841][ T6267] ? gfs2_reconfigure+0xd80/0xd80 [ 241.858950][ T6267] ? sb_set_blocksize+0xa5/0xe0 [ 241.863799][ T6267] get_tree_bdev+0x3e6/0x610 [ 241.868408][ T6267] ? gfs2_reconfigure+0xd80/0xd80 [ 241.873416][ T6267] gfs2_get_tree+0x4d/0x1e0 [ 241.877912][ T6267] vfs_get_tree+0x88/0x270 [ 241.882314][ T6267] do_new_mount+0x247/0xa40 [ 241.886898][ T6267] __se_sys_mount+0x2e3/0x3d0 [ 241.891688][ T6267] ? __x64_sys_mount+0xc0/0xc0 [ 241.896473][ T6267] ? lockdep_hardirqs_on+0x94/0x140 [ 241.901692][ T6267] ? __x64_sys_mount+0x1c/0xc0 [ 241.906616][ T6267] do_syscall_64+0x4c/0xa0 [ 241.911036][ T6267] ? clear_bhb_loop+0x30/0x80 [ 241.915713][ T6267] ? clear_bhb_loop+0x30/0x80 [ 241.920485][ T6267] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 241.926558][ T6267] RIP: 0033:0x7f1f2704534a [ 241.930966][ T6267] 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 [ 241.950688][ T6267] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 241.959092][ T6267] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 241.967192][ T6267] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 241.975154][ T6267] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 241.983265][ T6267] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 241.991235][ T6267] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 241.999226][ T6267] [ 242.004808][ T6267] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 242.018934][ T6267] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 242.036674][ T6266] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 242.046863][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 242.055625][ T6273] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 242.063678][ T6271] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 242.072799][ T6266] CPU: 1 PID: 6266 Comm: syz.1.294 Not tainted syzkaller #0 [ 242.080119][ T6266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 242.090455][ T6266] Call Trace: [ 242.094053][ T6266] [ 242.097004][ T6266] dump_stack_lvl+0x188/0x250 [ 242.101984][ T6266] ? show_regs_print_info+0x20/0x20 [ 242.107292][ T6266] ? load_image+0x410/0x410 [ 242.112101][ T6266] sysfs_create_dir_ns+0x26a/0x290 [ 242.117312][ T6266] ? sysfs_warn_dup+0xa0/0xa0 [ 242.122005][ T6266] ? do_raw_spin_unlock+0x11d/0x230 [ 242.127215][ T6266] kobject_add_internal+0x5ba/0xcd0 [ 242.132507][ T6266] kobject_init_and_add+0x128/0x190 [ 242.137817][ T6266] ? lockdep_softirqs_off+0x430/0x430 [ 242.144531][ T6266] ? kobject_add+0x230/0x230 [ 242.149236][ T6266] ? __init_swait_queue_head+0xa4/0x140 [ 242.154800][ T6266] gfs2_sys_fs_add+0x24f/0x4b0 [ 242.160107][ T6266] ? gfs2_recover_set+0x240/0x240 [ 242.165155][ T6266] ? snprintf+0xe5/0x140 [ 242.169808][ T6266] ? __free_pages+0x95/0x1a0 [ 242.175150][ T6266] ? vscnprintf+0x80/0x80 [ 242.179536][ T6266] gfs2_fill_super+0x11ed/0x1ea0 [ 242.184601][ T6266] ? gfs2_reconfigure+0xd80/0xd80 [ 242.189665][ T6266] ? sb_set_blocksize+0xa5/0xe0 [ 242.194978][ T6266] get_tree_bdev+0x3e6/0x610 [ 242.199686][ T6266] ? gfs2_reconfigure+0xd80/0xd80 [ 242.204748][ T6266] gfs2_get_tree+0x4d/0x1e0 [ 242.209616][ T6266] vfs_get_tree+0x88/0x270 [ 242.215015][ T6266] do_new_mount+0x247/0xa40 [ 242.219594][ T6266] __se_sys_mount+0x2e3/0x3d0 [ 242.224466][ T6266] ? __x64_sys_mount+0xc0/0xc0 [ 242.229896][ T6266] ? lockdep_hardirqs_on+0x94/0x140 [ 242.235929][ T6266] ? __x64_sys_mount+0x1c/0xc0 [ 242.240875][ T6266] do_syscall_64+0x4c/0xa0 [ 242.245302][ T6266] ? clear_bhb_loop+0x30/0x80 [ 242.250807][ T6266] ? clear_bhb_loop+0x30/0x80 [ 242.255682][ T6266] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 242.261698][ T6266] RIP: 0033:0x7f298d04b34a [ 242.266290][ T6266] 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 [ 242.286345][ T6266] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 242.295052][ T6266] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 242.303130][ T6266] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 242.311199][ T6266] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 242.319186][ T6266] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 242.327264][ T6266] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 242.335702][ T6266] [ 242.346429][ T6271] CPU: 1 PID: 6271 Comm: syz.5.298 Not tainted syzkaller #0 [ 242.355621][ T6271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 242.367576][ T6271] Call Trace: [ 242.371498][ T6271] [ 242.374725][ T6271] dump_stack_lvl+0x188/0x250 [ 242.379995][ T6271] ? show_regs_print_info+0x20/0x20 [ 242.386701][ T6271] ? load_image+0x410/0x410 [ 242.391509][ T6271] sysfs_create_dir_ns+0x26a/0x290 [ 242.397432][ T6271] ? sysfs_warn_dup+0xa0/0xa0 [ 242.402311][ T6271] ? do_raw_spin_unlock+0x11d/0x230 [ 242.407809][ T6271] kobject_add_internal+0x5ba/0xcd0 [ 242.413560][ T6271] kobject_init_and_add+0x128/0x190 [ 242.418886][ T6271] ? lockdep_softirqs_off+0x430/0x430 [ 242.424557][ T6271] ? kobject_add+0x230/0x230 [ 242.429276][ T6271] ? __init_swait_queue_head+0xa4/0x140 [ 242.434836][ T6271] gfs2_sys_fs_add+0x24f/0x4b0 [ 242.439621][ T6271] ? gfs2_recover_set+0x240/0x240 [ 242.444926][ T6271] ? snprintf+0xe5/0x140 [ 242.449298][ T6271] ? __free_pages+0x95/0x1a0 [ 242.453905][ T6271] ? vscnprintf+0x80/0x80 [ 242.458263][ T6271] gfs2_fill_super+0x11ed/0x1ea0 [ 242.463230][ T6271] ? gfs2_reconfigure+0xd80/0xd80 [ 242.468731][ T6271] ? sb_set_blocksize+0xa5/0xe0 [ 242.473694][ T6271] get_tree_bdev+0x3e6/0x610 [ 242.478522][ T6271] ? gfs2_reconfigure+0xd80/0xd80 [ 242.483695][ T6271] gfs2_get_tree+0x4d/0x1e0 [ 242.490092][ T6271] vfs_get_tree+0x88/0x270 [ 242.494535][ T6271] do_new_mount+0x247/0xa40 [ 242.499712][ T6271] __se_sys_mount+0x2e3/0x3d0 [ 242.505264][ T6271] ? __x64_sys_mount+0xc0/0xc0 [ 242.510343][ T6271] ? lockdep_hardirqs_on+0x94/0x140 [ 242.516607][ T6271] ? __x64_sys_mount+0x1c/0xc0 [ 242.521670][ T6271] do_syscall_64+0x4c/0xa0 [ 242.526283][ T6271] ? clear_bhb_loop+0x30/0x80 [ 242.531144][ T6271] ? clear_bhb_loop+0x30/0x80 [ 242.535912][ T6271] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 242.542079][ T6271] RIP: 0033:0x7fb1ebe1134a [ 242.546634][ T6271] 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 [ 242.567222][ T6271] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 242.575955][ T6271] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 242.584114][ T6271] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 242.592186][ T6271] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 242.600173][ T6271] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 242.608250][ T6271] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 242.616515][ T6271] [ 242.619728][ T6273] CPU: 0 PID: 6273 Comm: syz.2.297 Not tainted syzkaller #0 [ 242.627127][ T6273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 242.637450][ T6273] Call Trace: [ 242.640743][ T6273] [ 242.643837][ T6273] dump_stack_lvl+0x188/0x250 [ 242.648599][ T6273] ? show_regs_print_info+0x20/0x20 [ 242.653815][ T6273] ? load_image+0x410/0x410 [ 242.655570][ T6266] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 242.658366][ T6273] sysfs_create_dir_ns+0x26a/0x290 [ 242.673749][ T6271] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 242.678065][ T6273] ? sysfs_warn_dup+0xa0/0xa0 [ 242.697317][ T6273] ? do_raw_spin_unlock+0x11d/0x230 [ 242.702565][ T6273] kobject_add_internal+0x5ba/0xcd0 [ 242.703501][ T6266] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 242.707773][ T6273] kobject_init_and_add+0x128/0x190 [ 242.707793][ T6273] ? lockdep_softirqs_off+0x430/0x430 [ 242.725625][ T6273] ? kobject_add+0x230/0x230 [ 242.730232][ T6273] ? __init_swait_queue_head+0xa4/0x140 [ 242.730991][ T6271] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 242.735794][ T6273] gfs2_sys_fs_add+0x24f/0x4b0 [ 242.735824][ T6273] ? gfs2_recover_set+0x240/0x240 [ 242.735841][ T6273] ? snprintf+0xe5/0x140 [ 242.735854][ T6273] ? __free_pages+0x95/0x1a0 [ 242.735874][ T6273] ? vscnprintf+0x80/0x80 [ 242.735897][ T6273] gfs2_fill_super+0x11ed/0x1ea0 [ 242.735921][ T6273] ? gfs2_reconfigure+0xd80/0xd80 [ 242.735952][ T6273] ? sb_set_blocksize+0xa5/0xe0 [ 242.782253][ T6273] get_tree_bdev+0x3e6/0x610 [ 242.787032][ T6273] ? gfs2_reconfigure+0xd80/0xd80 [ 242.792070][ T6273] gfs2_get_tree+0x4d/0x1e0 [ 242.797834][ T6273] vfs_get_tree+0x88/0x270 [ 242.802530][ T6273] do_new_mount+0x247/0xa40 [ 242.807261][ T6273] __se_sys_mount+0x2e3/0x3d0 [ 242.812598][ T6273] ? __x64_sys_mount+0xc0/0xc0 [ 242.817695][ T6273] ? lockdep_hardirqs_on+0x94/0x140 [ 242.823005][ T6273] ? __x64_sys_mount+0x1c/0xc0 [ 242.827876][ T6273] do_syscall_64+0x4c/0xa0 [ 242.832626][ T6273] ? clear_bhb_loop+0x30/0x80 [ 242.837603][ T6273] ? clear_bhb_loop+0x30/0x80 [ 242.842746][ T6273] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 242.849049][ T6273] RIP: 0033:0x7fa3eeafe34a [ 242.853587][ T6273] 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 [ 242.876134][ T6273] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 242.885625][ T6273] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 242.894160][ T6273] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 242.902720][ T6273] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 242.911169][ T6273] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 242.919667][ T6273] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 242.929563][ T6273] [ 242.932885][ T6269] CPU: 1 PID: 6269 Comm: syz.0.296 Not tainted syzkaller #0 [ 242.940290][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 242.950504][ T6269] Call Trace: [ 242.954162][ T6269] [ 242.957306][ T6269] dump_stack_lvl+0x188/0x250 [ 242.962112][ T6269] ? show_regs_print_info+0x20/0x20 [ 242.967598][ T6269] ? load_image+0x410/0x410 [ 242.972749][ T6269] sysfs_create_dir_ns+0x26a/0x290 [ 242.979210][ T6269] ? sysfs_warn_dup+0xa0/0xa0 [ 242.984005][ T6269] ? do_raw_spin_unlock+0x11d/0x230 [ 242.989953][ T6269] kobject_add_internal+0x5ba/0xcd0 [ 242.995355][ T6269] kobject_init_and_add+0x128/0x190 [ 243.000675][ T6269] ? lockdep_softirqs_off+0x430/0x430 [ 243.006252][ T6269] ? kobject_add+0x230/0x230 [ 243.011402][ T6269] ? __init_swait_queue_head+0xa4/0x140 [ 243.017174][ T6269] gfs2_sys_fs_add+0x24f/0x4b0 [ 243.017554][ T6273] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 243.022132][ T6269] ? gfs2_recover_set+0x240/0x240 [ 243.041927][ T6269] ? snprintf+0xe5/0x140 [ 243.046188][ T6269] ? __free_pages+0x95/0x1a0 [ 243.050809][ T6269] ? vscnprintf+0x80/0x80 [ 243.055260][ T6269] gfs2_fill_super+0x11ed/0x1ea0 [ 243.060776][ T6269] ? gfs2_reconfigure+0xd80/0xd80 [ 243.066148][ T6273] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 243.066410][ T6269] ? sb_set_blocksize+0xa5/0xe0 [ 243.079328][ T6269] get_tree_bdev+0x3e6/0x610 [ 243.084331][ T6269] ? gfs2_reconfigure+0xd80/0xd80 [ 243.090360][ T6269] gfs2_get_tree+0x4d/0x1e0 [ 243.095325][ T6269] vfs_get_tree+0x88/0x270 [ 243.100458][ T6269] do_new_mount+0x247/0xa40 [ 243.105646][ T6269] __se_sys_mount+0x2e3/0x3d0 [ 243.111832][ T6269] ? __x64_sys_mount+0xc0/0xc0 [ 243.116969][ T6269] ? lockdep_hardirqs_on+0x94/0x140 [ 243.123099][ T6269] ? __x64_sys_mount+0x1c/0xc0 [ 243.128755][ T6269] do_syscall_64+0x4c/0xa0 [ 243.133455][ T6269] ? clear_bhb_loop+0x30/0x80 [ 243.139561][ T6269] ? clear_bhb_loop+0x30/0x80 [ 243.144892][ T6269] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 243.153287][ T6269] RIP: 0033:0x7f364914634a [ 243.158250][ T6269] 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 [ 243.179485][ T6269] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 243.191077][ T6269] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 243.200764][ T6269] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 243.209206][ T6269] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 243.218987][ T6269] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 243.230851][ T6269] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 243.239680][ T6269] 2026/06/27 02:09:18 executed programs: 294 [ 243.269822][ T6269] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 243.363671][ T6269] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 243.952896][ T6275] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 243.993557][ T6275] CPU: 0 PID: 6275 Comm: syz.1.299 Not tainted syzkaller #0 [ 244.000973][ T6275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 244.011045][ T6275] Call Trace: [ 244.014338][ T6275] [ 244.017273][ T6275] dump_stack_lvl+0x188/0x250 [ 244.021959][ T6275] ? show_regs_print_info+0x20/0x20 [ 244.027173][ T6275] ? load_image+0x410/0x410 [ 244.031803][ T6275] sysfs_create_dir_ns+0x26a/0x290 [ 244.037989][ T6275] ? sysfs_warn_dup+0xa0/0xa0 [ 244.042694][ T6275] ? do_raw_spin_unlock+0x11d/0x230 [ 244.047934][ T6275] kobject_add_internal+0x5ba/0xcd0 [ 244.053628][ T6275] kobject_init_and_add+0x128/0x190 [ 244.059026][ T6275] ? lockdep_softirqs_off+0x430/0x430 [ 244.064431][ T6275] ? kobject_add+0x230/0x230 [ 244.069042][ T6275] ? __init_swait_queue_head+0xa4/0x140 [ 244.074793][ T6275] gfs2_sys_fs_add+0x24f/0x4b0 [ 244.079758][ T6275] ? gfs2_recover_set+0x240/0x240 [ 244.084803][ T6275] ? snprintf+0xe5/0x140 [ 244.089510][ T6275] ? __free_pages+0x95/0x1a0 [ 244.094387][ T6275] ? vscnprintf+0x80/0x80 [ 244.098738][ T6275] gfs2_fill_super+0x11ed/0x1ea0 [ 244.103706][ T6275] ? gfs2_reconfigure+0xd80/0xd80 [ 244.108855][ T6275] ? sb_set_blocksize+0xa5/0xe0 [ 244.113713][ T6275] get_tree_bdev+0x3e6/0x610 [ 244.118316][ T6275] ? gfs2_reconfigure+0xd80/0xd80 [ 244.123364][ T6275] gfs2_get_tree+0x4d/0x1e0 [ 244.127973][ T6275] vfs_get_tree+0x88/0x270 [ 244.132406][ T6275] do_new_mount+0x247/0xa40 [ 244.136944][ T6275] __se_sys_mount+0x2e3/0x3d0 [ 244.141823][ T6275] ? __x64_sys_mount+0xc0/0xc0 [ 244.146695][ T6275] ? lockdep_hardirqs_on+0x94/0x140 [ 244.152100][ T6275] ? __x64_sys_mount+0x1c/0xc0 [ 244.156878][ T6275] do_syscall_64+0x4c/0xa0 [ 244.161313][ T6275] ? clear_bhb_loop+0x30/0x80 [ 244.166025][ T6275] ? clear_bhb_loop+0x30/0x80 [ 244.171522][ T6275] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 244.177606][ T6275] RIP: 0033:0x7f298d04b34a [ 244.182035][ T6275] 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 [ 244.202281][ T6275] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 244.211178][ T6275] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 244.219928][ T6275] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 244.228541][ T6275] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 244.237837][ T6275] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 244.246349][ T6275] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 244.254350][ T6275] [ 244.440786][ T6277] set_capacity_and_notify: 1 callbacks suppressed [ 244.440801][ T6277] loop4: detected capacity change from 0 to 32768 [ 244.521928][ T6277] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 244.541376][ T6281] loop5: detected capacity change from 0 to 32768 [ 244.557136][ T6277] CPU: 1 PID: 6277 Comm: syz.4.300 Not tainted syzkaller #0 [ 244.562134][ T6279] loop2: detected capacity change from 0 to 32768 [ 244.564816][ T6277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 244.564829][ T6277] Call Trace: [ 244.564835][ T6277] [ 244.564842][ T6277] dump_stack_lvl+0x188/0x250 [ 244.564864][ T6277] ? show_regs_print_info+0x20/0x20 [ 244.564886][ T6277] ? load_image+0x410/0x410 [ 244.564911][ T6277] sysfs_create_dir_ns+0x26a/0x290 [ 244.585190][ T6279] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 244.585680][ T6277] ? sysfs_warn_dup+0xa0/0xa0 [ 244.621392][ T6277] ? do_raw_spin_unlock+0x11d/0x230 [ 244.626663][ T6277] kobject_add_internal+0x5ba/0xcd0 [ 244.631970][ T6277] kobject_init_and_add+0x128/0x190 [ 244.637285][ T6277] ? lockdep_softirqs_off+0x430/0x430 [ 244.642681][ T6277] ? kobject_add+0x230/0x230 [ 244.647636][ T6277] ? __init_swait_queue_head+0xa4/0x140 [ 244.653528][ T6277] gfs2_sys_fs_add+0x24f/0x4b0 [ 244.658307][ T6277] ? gfs2_recover_set+0x240/0x240 [ 244.663355][ T6277] ? snprintf+0xe5/0x140 [ 244.667609][ T6277] ? __free_pages+0x95/0x1a0 [ 244.672212][ T6277] ? vscnprintf+0x80/0x80 [ 244.676652][ T6277] gfs2_fill_super+0x11ed/0x1ea0 [ 244.681702][ T6277] ? gfs2_reconfigure+0xd80/0xd80 [ 244.686753][ T6277] ? sb_set_blocksize+0xa5/0xe0 [ 244.691695][ T6277] get_tree_bdev+0x3e6/0x610 [ 244.696480][ T6277] ? gfs2_reconfigure+0xd80/0xd80 [ 244.701625][ T6277] gfs2_get_tree+0x4d/0x1e0 [ 244.706152][ T6277] vfs_get_tree+0x88/0x270 [ 244.710580][ T6277] do_new_mount+0x247/0xa40 [ 244.715087][ T6277] __se_sys_mount+0x2e3/0x3d0 [ 244.719764][ T6277] ? __x64_sys_mount+0xc0/0xc0 [ 244.724877][ T6277] ? lockdep_hardirqs_on+0x94/0x140 [ 244.730087][ T6277] ? __x64_sys_mount+0x1c/0xc0 [ 244.735045][ T6277] do_syscall_64+0x4c/0xa0 [ 244.739452][ T6277] ? clear_bhb_loop+0x30/0x80 [ 244.744127][ T6277] ? clear_bhb_loop+0x30/0x80 [ 244.744347][ T6283] loop0: detected capacity change from 0 to 32768 [ 244.748812][ T6277] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 244.761080][ T6277] RIP: 0033:0x7f1f2704534a [ 244.765497][ T6277] 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 [ 244.785276][ T6277] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 244.793704][ T6277] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 244.797070][ T6283] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 244.802199][ T6277] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 244.802215][ T6277] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 244.802225][ T6277] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 244.802236][ T6277] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 244.842345][ T6277] [ 244.845369][ T6279] CPU: 0 PID: 6279 Comm: syz.2.301 Not tainted syzkaller #0 [ 244.852932][ T6279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 244.853181][ T6277] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 244.863449][ T6279] Call Trace: [ 244.863466][ T6279] [ 244.863475][ T6279] dump_stack_lvl+0x188/0x250 [ 244.863498][ T6279] ? show_regs_print_info+0x20/0x20 [ 244.863514][ T6279] ? load_image+0x410/0x410 [ 244.863538][ T6279] sysfs_create_dir_ns+0x26a/0x290 [ 244.863562][ T6279] ? sysfs_warn_dup+0xa0/0xa0 [ 244.863578][ T6279] ? do_raw_spin_unlock+0x11d/0x230 [ 244.863597][ T6279] kobject_add_internal+0x5ba/0xcd0 [ 244.863618][ T6279] kobject_init_and_add+0x128/0x190 [ 244.863633][ T6279] ? lockdep_softirqs_off+0x430/0x430 [ 244.863654][ T6279] ? kobject_add+0x230/0x230 [ 244.863676][ T6279] ? __init_swait_queue_head+0xa4/0x140 [ 244.863697][ T6279] gfs2_sys_fs_add+0x24f/0x4b0 [ 244.879741][ T6277] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 244.881725][ T6279] ? gfs2_recover_set+0x240/0x240 [ 244.909677][ T6275] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 244.909701][ T6275] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 244.915191][ T6279] ? snprintf+0xe5/0x140 [ 244.915221][ T6279] ? __free_pages+0x95/0x1a0 [ 244.915241][ T6279] ? vscnprintf+0x80/0x80 [ 244.915264][ T6279] gfs2_fill_super+0x11ed/0x1ea0 [ 244.915291][ T6279] ? gfs2_reconfigure+0xd80/0xd80 [ 244.915321][ T6279] ? sb_set_blocksize+0xa5/0xe0 [ 245.008819][ T6279] get_tree_bdev+0x3e6/0x610 [ 245.013428][ T6279] ? gfs2_reconfigure+0xd80/0xd80 [ 245.018461][ T6279] gfs2_get_tree+0x4d/0x1e0 [ 245.022978][ T6279] vfs_get_tree+0x88/0x270 [ 245.027403][ T6279] do_new_mount+0x247/0xa40 [ 245.031907][ T6279] __se_sys_mount+0x2e3/0x3d0 [ 245.036582][ T6279] ? __x64_sys_mount+0xc0/0xc0 [ 245.041357][ T6279] ? lockdep_hardirqs_on+0x94/0x140 [ 245.046561][ T6279] ? __x64_sys_mount+0x1c/0xc0 [ 245.051329][ T6279] do_syscall_64+0x4c/0xa0 [ 245.055845][ T6279] ? clear_bhb_loop+0x30/0x80 [ 245.060537][ T6279] ? clear_bhb_loop+0x30/0x80 [ 245.065238][ T6279] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 245.071149][ T6279] RIP: 0033:0x7fa3eeafe34a [ 245.075567][ T6279] 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 [ 245.095373][ T6279] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 245.103912][ T6279] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 245.111901][ T6279] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 245.120029][ T6279] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 245.128021][ T6279] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 245.136308][ T6279] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 245.144525][ T6279] [ 245.157357][ T6283] CPU: 1 PID: 6283 Comm: syz.0.303 Not tainted syzkaller #0 [ 245.165156][ T6283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 245.175311][ T6283] Call Trace: [ 245.175881][ T6279] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 245.179049][ T6283] [ 245.193310][ T6279] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 245.196069][ T6283] dump_stack_lvl+0x188/0x250 [ 245.196098][ T6283] ? show_regs_print_info+0x20/0x20 [ 245.196115][ T6283] ? load_image+0x410/0x410 [ 245.218156][ T6283] sysfs_create_dir_ns+0x26a/0x290 [ 245.223294][ T6283] ? sysfs_warn_dup+0xa0/0xa0 [ 245.227997][ T6283] ? do_raw_spin_unlock+0x11d/0x230 [ 245.233660][ T6283] kobject_add_internal+0x5ba/0xcd0 [ 245.240000][ T6283] kobject_init_and_add+0x128/0x190 [ 245.245832][ T6283] ? lockdep_softirqs_off+0x430/0x430 [ 245.251333][ T6283] ? kobject_add+0x230/0x230 [ 245.256038][ T6283] ? __init_swait_queue_head+0xa4/0x140 [ 245.261790][ T6283] gfs2_sys_fs_add+0x24f/0x4b0 [ 245.267053][ T6283] ? gfs2_recover_set+0x240/0x240 [ 245.272136][ T6283] ? snprintf+0xe5/0x140 [ 245.276659][ T6283] ? __free_pages+0x95/0x1a0 [ 245.281374][ T6283] ? vscnprintf+0x80/0x80 [ 245.286059][ T6283] gfs2_fill_super+0x11ed/0x1ea0 [ 245.291297][ T6283] ? gfs2_reconfigure+0xd80/0xd80 [ 245.296469][ T6283] ? sb_set_blocksize+0xa5/0xe0 [ 245.301442][ T6283] get_tree_bdev+0x3e6/0x610 [ 245.306052][ T6283] ? gfs2_reconfigure+0xd80/0xd80 [ 245.311084][ T6283] gfs2_get_tree+0x4d/0x1e0 [ 245.315600][ T6283] vfs_get_tree+0x88/0x270 [ 245.320028][ T6283] do_new_mount+0x247/0xa40 [ 245.324543][ T6283] __se_sys_mount+0x2e3/0x3d0 [ 245.329354][ T6283] ? __x64_sys_mount+0xc0/0xc0 [ 245.334125][ T6283] ? lockdep_hardirqs_on+0x94/0x140 [ 245.339320][ T6283] ? __x64_sys_mount+0x1c/0xc0 [ 245.344337][ T6283] do_syscall_64+0x4c/0xa0 [ 245.348746][ T6283] ? clear_bhb_loop+0x30/0x80 [ 245.353425][ T6283] ? clear_bhb_loop+0x30/0x80 [ 245.358356][ T6283] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 245.364460][ T6283] RIP: 0033:0x7f364914634a [ 245.368867][ T6283] 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 [ 245.388552][ T6283] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 245.396986][ T6283] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 245.405212][ T6283] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 245.413180][ T6283] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 245.421440][ T6283] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 245.429404][ T6283] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 245.437516][ T6283] [ 245.447125][ T6283] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 245.461134][ T6283] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 245.476759][ T6285] loop4: detected capacity change from 0 to 32768 [ 245.499622][ T6281] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 245.533618][ T6281] CPU: 0 PID: 6281 Comm: syz.5.302 Not tainted syzkaller #0 [ 245.540981][ T6281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 245.551235][ T6281] Call Trace: [ 245.554649][ T6281] [ 245.557605][ T6281] dump_stack_lvl+0x188/0x250 [ 245.562395][ T6281] ? show_regs_print_info+0x20/0x20 [ 245.567792][ T6281] ? load_image+0x410/0x410 [ 245.572319][ T6281] sysfs_create_dir_ns+0x26a/0x290 [ 245.577610][ T6281] ? sysfs_warn_dup+0xa0/0xa0 [ 245.582305][ T6281] ? do_raw_spin_unlock+0x11d/0x230 [ 245.587774][ T6281] kobject_add_internal+0x5ba/0xcd0 [ 245.592995][ T6281] kobject_init_and_add+0x128/0x190 [ 245.598196][ T6281] ? lockdep_softirqs_off+0x430/0x430 [ 245.603577][ T6281] ? kobject_add+0x230/0x230 [ 245.608180][ T6281] ? __init_swait_queue_head+0xa4/0x140 [ 245.613832][ T6281] gfs2_sys_fs_add+0x24f/0x4b0 [ 245.618699][ T6281] ? gfs2_recover_set+0x240/0x240 [ 245.623917][ T6281] ? snprintf+0xe5/0x140 [ 245.628168][ T6281] ? __free_pages+0x95/0x1a0 [ 245.632777][ T6281] ? vscnprintf+0x80/0x80 [ 245.637124][ T6281] gfs2_fill_super+0x11ed/0x1ea0 [ 245.642093][ T6281] ? gfs2_reconfigure+0xd80/0xd80 [ 245.647145][ T6281] ? sb_set_blocksize+0xa5/0xe0 [ 245.652095][ T6281] get_tree_bdev+0x3e6/0x610 [ 245.656703][ T6281] ? gfs2_reconfigure+0xd80/0xd80 [ 245.661744][ T6281] gfs2_get_tree+0x4d/0x1e0 [ 245.666257][ T6281] vfs_get_tree+0x88/0x270 [ 245.670681][ T6281] do_new_mount+0x247/0xa40 [ 245.675198][ T6281] __se_sys_mount+0x2e3/0x3d0 [ 245.679893][ T6281] ? __x64_sys_mount+0xc0/0xc0 [ 245.684760][ T6281] ? lockdep_hardirqs_on+0x94/0x140 [ 245.689977][ T6281] ? __x64_sys_mount+0x1c/0xc0 [ 245.694763][ T6281] do_syscall_64+0x4c/0xa0 [ 245.699505][ T6281] ? clear_bhb_loop+0x30/0x80 [ 245.704278][ T6281] ? clear_bhb_loop+0x30/0x80 [ 245.708974][ T6281] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 245.714874][ T6281] RIP: 0033:0x7fb1ebe1134a [ 245.719299][ T6281] 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 [ 245.739008][ T6281] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 245.747441][ T6281] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 245.755476][ T6281] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 245.763461][ T6281] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 245.771578][ T6281] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 245.780024][ T6281] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 245.788207][ T6281] [ 245.796438][ T6281] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 245.826014][ T6285] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 245.836123][ T6281] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 245.843695][ T6285] CPU: 0 PID: 6285 Comm: syz.4.304 Not tainted syzkaller #0 [ 245.850997][ T6285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 245.861058][ T6285] Call Trace: [ 245.864345][ T6285] [ 245.867279][ T6285] dump_stack_lvl+0x188/0x250 [ 245.871975][ T6285] ? show_regs_print_info+0x20/0x20 [ 245.877181][ T6285] ? load_image+0x410/0x410 [ 245.881703][ T6285] sysfs_create_dir_ns+0x26a/0x290 [ 245.886827][ T6285] ? sysfs_warn_dup+0xa0/0xa0 [ 245.891522][ T6285] ? do_raw_spin_unlock+0x11d/0x230 [ 245.896737][ T6285] kobject_add_internal+0x5ba/0xcd0 [ 245.901990][ T6285] kobject_init_and_add+0x128/0x190 [ 245.907302][ T6285] ? lockdep_softirqs_off+0x430/0x430 [ 245.912797][ T6285] ? kobject_add+0x230/0x230 [ 245.917668][ T6285] ? __init_swait_queue_head+0xa4/0x140 [ 245.923235][ T6285] gfs2_sys_fs_add+0x24f/0x4b0 [ 245.928029][ T6285] ? gfs2_recover_set+0x240/0x240 [ 245.933070][ T6285] ? snprintf+0xe5/0x140 [ 245.937332][ T6285] ? __free_pages+0x95/0x1a0 [ 245.941967][ T6285] ? vscnprintf+0x80/0x80 [ 245.946507][ T6285] gfs2_fill_super+0x11ed/0x1ea0 [ 245.951650][ T6285] ? gfs2_reconfigure+0xd80/0xd80 [ 245.956709][ T6285] ? sb_set_blocksize+0xa5/0xe0 [ 245.961581][ T6285] get_tree_bdev+0x3e6/0x610 [ 245.966201][ T6285] ? gfs2_reconfigure+0xd80/0xd80 [ 245.971249][ T6285] gfs2_get_tree+0x4d/0x1e0 [ 245.975857][ T6285] vfs_get_tree+0x88/0x270 [ 245.980385][ T6285] do_new_mount+0x247/0xa40 [ 245.984903][ T6285] __se_sys_mount+0x2e3/0x3d0 [ 245.989589][ T6285] ? __x64_sys_mount+0xc0/0xc0 [ 245.994452][ T6285] ? lockdep_hardirqs_on+0x94/0x140 [ 245.999666][ T6285] ? __x64_sys_mount+0x1c/0xc0 [ 246.005075][ T6285] do_syscall_64+0x4c/0xa0 [ 246.009519][ T6285] ? clear_bhb_loop+0x30/0x80 [ 246.014221][ T6285] ? clear_bhb_loop+0x30/0x80 [ 246.019241][ T6285] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 246.025152][ T6285] RIP: 0033:0x7f1f2704534a [ 246.029581][ T6285] 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 [ 246.049197][ T6285] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 246.057727][ T6285] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 246.065715][ T6285] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 246.073699][ T6285] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 246.081682][ T6285] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 246.089670][ T6285] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 246.097936][ T6285] [ 246.124508][ T6285] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 246.214776][ T6285] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 246.499226][ T6289] loop1: detected capacity change from 0 to 32768 [ 246.571314][ T6289] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 246.614139][ T6289] CPU: 0 PID: 6289 Comm: syz.1.306 Not tainted syzkaller #0 [ 246.621563][ T6289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 246.631626][ T6289] Call Trace: [ 246.634945][ T6289] [ 246.637885][ T6289] dump_stack_lvl+0x188/0x250 [ 246.642578][ T6289] ? show_regs_print_info+0x20/0x20 [ 246.647887][ T6289] ? load_image+0x410/0x410 [ 246.652405][ T6289] sysfs_create_dir_ns+0x26a/0x290 [ 246.657534][ T6289] ? sysfs_warn_dup+0xa0/0xa0 [ 246.662411][ T6289] ? do_raw_spin_unlock+0x11d/0x230 [ 246.667679][ T6289] kobject_add_internal+0x5ba/0xcd0 [ 246.672898][ T6289] kobject_init_and_add+0x128/0x190 [ 246.678210][ T6289] ? lockdep_softirqs_off+0x430/0x430 [ 246.683708][ T6289] ? kobject_add+0x230/0x230 [ 246.688315][ T6289] ? __init_swait_queue_head+0xa4/0x140 [ 246.693879][ T6289] gfs2_sys_fs_add+0x24f/0x4b0 [ 246.698689][ T6289] ? gfs2_recover_set+0x240/0x240 [ 246.703729][ T6289] ? snprintf+0xe5/0x140 [ 246.707984][ T6289] ? __free_pages+0x95/0x1a0 [ 246.712636][ T6289] ? vscnprintf+0x80/0x80 [ 246.717089][ T6289] gfs2_fill_super+0x11ed/0x1ea0 [ 246.722073][ T6289] ? gfs2_reconfigure+0xd80/0xd80 [ 246.727226][ T6289] ? sb_set_blocksize+0xa5/0xe0 [ 246.732270][ T6289] get_tree_bdev+0x3e6/0x610 [ 246.737098][ T6289] ? gfs2_reconfigure+0xd80/0xd80 [ 246.742150][ T6289] gfs2_get_tree+0x4d/0x1e0 [ 246.746684][ T6289] vfs_get_tree+0x88/0x270 [ 246.751138][ T6289] do_new_mount+0x247/0xa40 [ 246.755665][ T6289] __se_sys_mount+0x2e3/0x3d0 [ 246.760366][ T6289] ? __x64_sys_mount+0xc0/0xc0 [ 246.765154][ T6289] ? lockdep_hardirqs_on+0x94/0x140 [ 246.770497][ T6289] ? __x64_sys_mount+0x1c/0xc0 [ 246.775382][ T6289] do_syscall_64+0x4c/0xa0 [ 246.779809][ T6289] ? clear_bhb_loop+0x30/0x80 [ 246.784585][ T6289] ? clear_bhb_loop+0x30/0x80 [ 246.789271][ T6289] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 246.795178][ T6289] RIP: 0033:0x7f298d04b34a [ 246.799603][ T6289] 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 [ 246.819308][ T6289] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 246.827831][ T6289] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 246.835824][ T6289] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 246.843907][ T6289] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 246.851891][ T6289] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 246.859870][ T6289] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 246.867953][ T6289] [ 247.053499][ T6289] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 247.078174][ T6289] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 247.270624][ T6287] loop2: detected capacity change from 0 to 32768 [ 247.329565][ T6287] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 247.344959][ T6287] CPU: 0 PID: 6287 Comm: syz.2.305 Not tainted syzkaller #0 [ 247.353947][ T6287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 247.364582][ T6287] Call Trace: [ 247.368320][ T6287] [ 247.371265][ T6287] dump_stack_lvl+0x188/0x250 [ 247.376218][ T6287] ? show_regs_print_info+0x20/0x20 [ 247.381544][ T6287] ? load_image+0x410/0x410 [ 247.386089][ T6287] sysfs_create_dir_ns+0x26a/0x290 [ 247.391218][ T6287] ? sysfs_warn_dup+0xa0/0xa0 [ 247.395921][ T6287] ? do_raw_spin_unlock+0x11d/0x230 [ 247.401141][ T6287] kobject_add_internal+0x5ba/0xcd0 [ 247.406460][ T6287] kobject_init_and_add+0x128/0x190 [ 247.406527][ T6291] loop0: detected capacity change from 0 to 32768 [ 247.411749][ T6287] ? lockdep_softirqs_off+0x430/0x430 [ 247.411772][ T6287] ? kobject_add+0x230/0x230 [ 247.411792][ T6287] ? __init_swait_queue_head+0xa4/0x140 [ 247.433935][ T6287] gfs2_sys_fs_add+0x24f/0x4b0 [ 247.438810][ T6287] ? gfs2_recover_set+0x240/0x240 [ 247.443863][ T6287] ? snprintf+0xe5/0x140 [ 247.448122][ T6287] ? __free_pages+0x95/0x1a0 [ 247.452728][ T6287] ? vscnprintf+0x80/0x80 [ 247.457077][ T6287] gfs2_fill_super+0x11ed/0x1ea0 [ 247.462128][ T6287] ? gfs2_reconfigure+0xd80/0xd80 [ 247.467226][ T6287] ? sb_set_blocksize+0xa5/0xe0 [ 247.472114][ T6287] get_tree_bdev+0x3e6/0x610 [ 247.476813][ T6287] ? gfs2_reconfigure+0xd80/0xd80 [ 247.481942][ T6287] gfs2_get_tree+0x4d/0x1e0 [ 247.486465][ T6287] vfs_get_tree+0x88/0x270 [ 247.490913][ T6287] do_new_mount+0x247/0xa40 [ 247.495439][ T6287] __se_sys_mount+0x2e3/0x3d0 [ 247.500233][ T6287] ? __x64_sys_mount+0xc0/0xc0 [ 247.505251][ T6287] ? lockdep_hardirqs_on+0x94/0x140 [ 247.510734][ T6287] ? __x64_sys_mount+0x1c/0xc0 [ 247.513183][ T6291] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 247.515516][ T6287] do_syscall_64+0x4c/0xa0 [ 247.515539][ T6287] ? clear_bhb_loop+0x30/0x80 [ 247.515555][ T6287] ? clear_bhb_loop+0x30/0x80 [ 247.515571][ T6287] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 247.515587][ T6287] RIP: 0033:0x7fa3eeafe34a [ 247.515604][ T6287] 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 [ 247.515618][ T6287] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 247.515637][ T6287] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 247.515649][ T6287] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 247.515660][ T6287] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 247.538007][ T6293] loop5: detected capacity change from 0 to 32768 [ 247.538153][ T6287] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 247.603751][ T6293] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 247.608021][ T6287] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 247.632125][ T6287] [ 247.637040][ T6291] CPU: 1 PID: 6291 Comm: syz.0.307 Not tainted syzkaller #0 [ 247.644368][ T6291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 247.654691][ T6291] Call Trace: [ 247.657991][ T6291] [ 247.660931][ T6291] dump_stack_lvl+0x188/0x250 [ 247.665631][ T6291] ? show_regs_print_info+0x20/0x20 [ 247.670851][ T6291] ? load_image+0x410/0x410 [ 247.675377][ T6291] sysfs_create_dir_ns+0x26a/0x290 [ 247.680596][ T6291] ? sysfs_warn_dup+0xa0/0xa0 [ 247.685472][ T6291] ? do_raw_spin_unlock+0x11d/0x230 [ 247.690689][ T6291] kobject_add_internal+0x5ba/0xcd0 [ 247.695904][ T6291] kobject_init_and_add+0x128/0x190 [ 247.701296][ T6291] ? lockdep_softirqs_off+0x430/0x430 [ 247.706685][ T6291] ? kobject_add+0x230/0x230 [ 247.711387][ T6291] ? __init_swait_queue_head+0xa4/0x140 [ 247.716942][ T6291] gfs2_sys_fs_add+0x24f/0x4b0 [ 247.721809][ T6291] ? gfs2_recover_set+0x240/0x240 [ 247.726848][ T6291] ? snprintf+0xe5/0x140 [ 247.731101][ T6291] ? __free_pages+0x95/0x1a0 [ 247.735725][ T6291] ? vscnprintf+0x80/0x80 [ 247.740078][ T6291] gfs2_fill_super+0x11ed/0x1ea0 [ 247.745032][ T6291] ? gfs2_reconfigure+0xd80/0xd80 [ 247.750174][ T6291] ? sb_set_blocksize+0xa5/0xe0 [ 247.755040][ T6291] get_tree_bdev+0x3e6/0x610 [ 247.760040][ T6291] ? gfs2_reconfigure+0xd80/0xd80 [ 247.765077][ T6291] gfs2_get_tree+0x4d/0x1e0 [ 247.769698][ T6291] vfs_get_tree+0x88/0x270 [ 247.774126][ T6291] do_new_mount+0x247/0xa40 [ 247.778725][ T6291] __se_sys_mount+0x2e3/0x3d0 [ 247.783398][ T6291] ? __x64_sys_mount+0xc0/0xc0 [ 247.788160][ T6291] ? lockdep_hardirqs_on+0x94/0x140 [ 247.793368][ T6291] ? __x64_sys_mount+0x1c/0xc0 [ 247.798143][ T6291] do_syscall_64+0x4c/0xa0 [ 247.802657][ T6291] ? clear_bhb_loop+0x30/0x80 [ 247.807513][ T6291] ? clear_bhb_loop+0x30/0x80 [ 247.812200][ T6291] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 247.818126][ T6291] RIP: 0033:0x7f364914634a [ 247.822542][ T6291] 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 [ 247.842241][ T6291] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 247.850679][ T6291] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 247.858932][ T6291] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 247.866914][ T6291] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 247.874968][ T6291] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 247.882986][ T6291] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 247.890997][ T6291] [ 247.910679][ T6293] CPU: 0 PID: 6293 Comm: syz.5.308 Not tainted syzkaller #0 [ 247.918025][ T6293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 247.928944][ T6293] Call Trace: [ 247.932292][ T6293] [ 247.935346][ T6293] dump_stack_lvl+0x188/0x250 [ 247.940056][ T6293] ? show_regs_print_info+0x20/0x20 [ 247.945352][ T6293] ? load_image+0x410/0x410 [ 247.949968][ T6293] sysfs_create_dir_ns+0x26a/0x290 [ 247.955715][ T6293] ? sysfs_warn_dup+0xa0/0xa0 [ 247.960431][ T6293] ? do_raw_spin_unlock+0x11d/0x230 [ 247.965651][ T6293] kobject_add_internal+0x5ba/0xcd0 [ 247.970874][ T6293] kobject_init_and_add+0x128/0x190 [ 247.976177][ T6293] ? lockdep_softirqs_off+0x430/0x430 [ 247.981575][ T6293] ? kobject_add+0x230/0x230 [ 247.983511][ T6287] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 247.986294][ T6293] ? __init_swait_queue_head+0xa4/0x140 [ 248.005862][ T6293] gfs2_sys_fs_add+0x24f/0x4b0 [ 248.010773][ T6293] ? gfs2_recover_set+0x240/0x240 [ 248.014762][ T6287] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 248.015812][ T6293] ? snprintf+0xe5/0x140 [ 248.027516][ T6293] ? __free_pages+0x95/0x1a0 [ 248.032149][ T6293] ? vscnprintf+0x80/0x80 [ 248.036694][ T6293] gfs2_fill_super+0x11ed/0x1ea0 [ 248.041975][ T6293] ? gfs2_reconfigure+0xd80/0xd80 [ 248.047100][ T6293] ? sb_set_blocksize+0xa5/0xe0 [ 248.052062][ T6293] get_tree_bdev+0x3e6/0x610 [ 248.056835][ T6293] ? gfs2_reconfigure+0xd80/0xd80 [ 248.061869][ T6293] gfs2_get_tree+0x4d/0x1e0 [ 248.066431][ T6293] vfs_get_tree+0x88/0x270 [ 248.070867][ T6293] do_new_mount+0x247/0xa40 [ 248.075368][ T6293] __se_sys_mount+0x2e3/0x3d0 [ 248.080049][ T6293] ? __x64_sys_mount+0xc0/0xc0 [ 248.084821][ T6293] ? lockdep_hardirqs_on+0x94/0x140 [ 248.090014][ T6293] ? __x64_sys_mount+0x1c/0xc0 [ 248.094870][ T6293] do_syscall_64+0x4c/0xa0 [ 248.099358][ T6293] ? clear_bhb_loop+0x30/0x80 [ 248.104015][ T6293] ? clear_bhb_loop+0x30/0x80 [ 248.108676][ T6293] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 248.114655][ T6293] RIP: 0033:0x7fb1ebe1134a [ 248.119170][ T6293] 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 [ 248.139304][ T6293] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 248.147814][ T6293] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 248.155810][ T6293] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 248.163772][ T6293] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 248.171733][ T6293] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 248.179690][ T6293] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 248.187794][ T6293] [ 248.194846][ T6291] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 248.223509][ T6293] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 248.255662][ T6295] loop4: detected capacity change from 0 to 32768 [ 248.267326][ T6293] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 248.269185][ T6291] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 248.281867][ T6295] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' 2026/06/27 02:09:23 executed programs: 305 [ 248.354551][ T6295] CPU: 1 PID: 6295 Comm: syz.4.309 Not tainted syzkaller #0 [ 248.362082][ T6295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 248.373202][ T6295] Call Trace: [ 248.376493][ T6295] [ 248.379883][ T6295] dump_stack_lvl+0x188/0x250 [ 248.384594][ T6295] ? show_regs_print_info+0x20/0x20 [ 248.390100][ T6295] ? load_image+0x410/0x410 [ 248.394635][ T6295] sysfs_create_dir_ns+0x26a/0x290 [ 248.400205][ T6295] ? sysfs_warn_dup+0xa0/0xa0 [ 248.404906][ T6295] ? do_raw_spin_unlock+0x11d/0x230 [ 248.410130][ T6295] kobject_add_internal+0x5ba/0xcd0 [ 248.415355][ T6295] kobject_init_and_add+0x128/0x190 [ 248.420747][ T6295] ? lockdep_softirqs_off+0x430/0x430 [ 248.426152][ T6295] ? kobject_add+0x230/0x230 [ 248.430775][ T6295] ? __init_swait_queue_head+0xa4/0x140 [ 248.436342][ T6295] gfs2_sys_fs_add+0x24f/0x4b0 [ 248.441133][ T6295] ? gfs2_recover_set+0x240/0x240 [ 248.446170][ T6295] ? snprintf+0xe5/0x140 [ 248.450425][ T6295] ? __free_pages+0x95/0x1a0 [ 248.455028][ T6295] ? vscnprintf+0x80/0x80 [ 248.459377][ T6295] gfs2_fill_super+0x11ed/0x1ea0 [ 248.464340][ T6295] ? gfs2_reconfigure+0xd80/0xd80 [ 248.469393][ T6295] ? sb_set_blocksize+0xa5/0xe0 [ 248.474263][ T6295] get_tree_bdev+0x3e6/0x610 [ 248.479132][ T6295] ? gfs2_reconfigure+0xd80/0xd80 [ 248.484315][ T6295] gfs2_get_tree+0x4d/0x1e0 [ 248.488935][ T6295] vfs_get_tree+0x88/0x270 [ 248.493370][ T6295] do_new_mount+0x247/0xa40 [ 248.497890][ T6295] __se_sys_mount+0x2e3/0x3d0 [ 248.502601][ T6295] ? __x64_sys_mount+0xc0/0xc0 [ 248.507570][ T6295] ? lockdep_hardirqs_on+0x94/0x140 [ 248.513057][ T6295] ? __x64_sys_mount+0x1c/0xc0 [ 248.518212][ T6295] do_syscall_64+0x4c/0xa0 [ 248.522916][ T6295] ? clear_bhb_loop+0x30/0x80 [ 248.528147][ T6295] ? clear_bhb_loop+0x30/0x80 [ 248.532852][ T6295] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 248.538759][ T6295] RIP: 0033:0x7f1f2704534a [ 248.543316][ T6295] 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 [ 248.563643][ T6295] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 248.572087][ T6295] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 248.580243][ T6295] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 248.588493][ T6295] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 248.597610][ T6295] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 248.606209][ T6295] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 248.614390][ T6295] [ 248.831809][ T6297] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 248.850324][ T6297] CPU: 1 PID: 6297 Comm: syz.1.310 Not tainted syzkaller #0 [ 248.857743][ T6297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 248.867813][ T6297] Call Trace: [ 248.871113][ T6297] [ 248.874059][ T6297] dump_stack_lvl+0x188/0x250 [ 248.878757][ T6297] ? show_regs_print_info+0x20/0x20 [ 248.884058][ T6297] ? load_image+0x410/0x410 [ 248.888593][ T6297] sysfs_create_dir_ns+0x26a/0x290 [ 248.893721][ T6297] ? sysfs_warn_dup+0xa0/0xa0 [ 248.898425][ T6297] ? do_raw_spin_unlock+0x11d/0x230 [ 248.903815][ T6297] kobject_add_internal+0x5ba/0xcd0 [ 248.909350][ T6297] kobject_init_and_add+0x128/0x190 [ 248.914573][ T6297] ? lockdep_softirqs_off+0x430/0x430 [ 248.920394][ T6297] ? kobject_add+0x230/0x230 [ 248.925012][ T6297] ? __init_swait_queue_head+0xa4/0x140 [ 248.930582][ T6297] gfs2_sys_fs_add+0x24f/0x4b0 [ 248.935372][ T6297] ? gfs2_recover_set+0x240/0x240 [ 248.940419][ T6297] ? snprintf+0xe5/0x140 [ 248.944674][ T6297] ? __free_pages+0x95/0x1a0 [ 248.949550][ T6297] ? vscnprintf+0x80/0x80 [ 248.953905][ T6297] gfs2_fill_super+0x11ed/0x1ea0 [ 248.959038][ T6297] ? gfs2_reconfigure+0xd80/0xd80 [ 248.964088][ T6297] ? sb_set_blocksize+0xa5/0xe0 [ 248.968970][ T6297] get_tree_bdev+0x3e6/0x610 [ 248.973667][ T6297] ? gfs2_reconfigure+0xd80/0xd80 [ 248.978711][ T6297] gfs2_get_tree+0x4d/0x1e0 [ 248.983324][ T6297] vfs_get_tree+0x88/0x270 [ 248.987751][ T6297] do_new_mount+0x247/0xa40 [ 248.992272][ T6297] __se_sys_mount+0x2e3/0x3d0 [ 248.996966][ T6297] ? __x64_sys_mount+0xc0/0xc0 [ 249.001850][ T6297] ? lockdep_hardirqs_on+0x94/0x140 [ 249.007073][ T6297] ? __x64_sys_mount+0x1c/0xc0 [ 249.011850][ T6297] do_syscall_64+0x4c/0xa0 [ 249.016288][ T6297] ? clear_bhb_loop+0x30/0x80 [ 249.020972][ T6297] ? clear_bhb_loop+0x30/0x80 [ 249.025802][ T6297] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 249.031723][ T6297] RIP: 0033:0x7f298d04b34a [ 249.036165][ T6297] 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 [ 249.056212][ T6297] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 249.064814][ T6297] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 249.072797][ T6297] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 249.080789][ T6297] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 249.088862][ T6297] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 249.096849][ T6297] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 249.103794][ T6295] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 249.105542][ T6297] [ 249.148611][ T6295] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 249.301853][ T6299] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 249.340974][ T6299] CPU: 1 PID: 6299 Comm: syz.0.311 Not tainted syzkaller #0 [ 249.348307][ T6299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 249.358723][ T6299] Call Trace: [ 249.362625][ T6299] [ 249.365578][ T6299] dump_stack_lvl+0x188/0x250 [ 249.370361][ T6299] ? show_regs_print_info+0x20/0x20 [ 249.375576][ T6299] ? load_image+0x410/0x410 [ 249.380496][ T6299] sysfs_create_dir_ns+0x26a/0x290 [ 249.386041][ T6299] ? sysfs_warn_dup+0xa0/0xa0 [ 249.391628][ T6299] ? do_raw_spin_unlock+0x11d/0x230 [ 249.397029][ T6299] kobject_add_internal+0x5ba/0xcd0 [ 249.402447][ T6299] kobject_init_and_add+0x128/0x190 [ 249.408111][ T6299] ? lockdep_softirqs_off+0x430/0x430 [ 249.413590][ T6299] ? kobject_add+0x230/0x230 [ 249.418292][ T6299] ? __init_swait_queue_head+0xa4/0x140 [ 249.424308][ T6299] gfs2_sys_fs_add+0x24f/0x4b0 [ 249.429097][ T6299] ? gfs2_recover_set+0x240/0x240 [ 249.434236][ T6299] ? snprintf+0xe5/0x140 [ 249.438496][ T6299] ? __free_pages+0x95/0x1a0 [ 249.443110][ T6299] ? vscnprintf+0x80/0x80 [ 249.447461][ T6299] gfs2_fill_super+0x11ed/0x1ea0 [ 249.452438][ T6299] ? gfs2_reconfigure+0xd80/0xd80 [ 249.457495][ T6299] ? sb_set_blocksize+0xa5/0xe0 [ 249.462357][ T6299] get_tree_bdev+0x3e6/0x610 [ 249.466968][ T6299] ? gfs2_reconfigure+0xd80/0xd80 [ 249.472010][ T6299] gfs2_get_tree+0x4d/0x1e0 [ 249.476533][ T6299] vfs_get_tree+0x88/0x270 [ 249.480964][ T6299] do_new_mount+0x247/0xa40 [ 249.485490][ T6299] __se_sys_mount+0x2e3/0x3d0 [ 249.490186][ T6299] ? __x64_sys_mount+0xc0/0xc0 [ 249.494971][ T6299] ? lockdep_hardirqs_on+0x94/0x140 [ 249.500180][ T6299] ? __x64_sys_mount+0x1c/0xc0 [ 249.505059][ T6299] do_syscall_64+0x4c/0xa0 [ 249.509673][ T6299] ? clear_bhb_loop+0x30/0x80 [ 249.512360][ T6301] set_capacity_and_notify: 2 callbacks suppressed [ 249.512374][ T6301] loop2: detected capacity change from 0 to 32768 [ 249.514372][ T6299] ? clear_bhb_loop+0x30/0x80 [ 249.514398][ T6299] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 249.514415][ T6299] RIP: 0033:0x7f364914634a [ 249.514430][ T6299] 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 [ 249.514443][ T6299] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 249.514460][ T6299] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 249.578972][ T6299] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 249.587048][ T6299] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 249.595470][ T6299] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 249.596837][ T6297] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 249.603451][ T6299] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 249.603478][ T6299] [ 249.631247][ T6301] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 249.660647][ T6301] CPU: 0 PID: 6301 Comm: syz.2.312 Not tainted syzkaller #0 [ 249.667977][ T6301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 249.678044][ T6301] Call Trace: [ 249.681333][ T6301] [ 249.684267][ T6301] dump_stack_lvl+0x188/0x250 [ 249.689138][ T6301] ? show_regs_print_info+0x20/0x20 [ 249.694430][ T6301] ? load_image+0x410/0x410 [ 249.698954][ T6301] sysfs_create_dir_ns+0x26a/0x290 [ 249.704084][ T6301] ? sysfs_warn_dup+0xa0/0xa0 [ 249.708776][ T6301] ? do_raw_spin_unlock+0x11d/0x230 [ 249.713991][ T6301] kobject_add_internal+0x5ba/0xcd0 [ 249.719206][ T6301] kobject_init_and_add+0x128/0x190 [ 249.724411][ T6301] ? lockdep_softirqs_off+0x430/0x430 [ 249.729795][ T6301] ? kobject_add+0x230/0x230 [ 249.734404][ T6301] ? __init_swait_queue_head+0xa4/0x140 [ 249.739963][ T6301] gfs2_sys_fs_add+0x24f/0x4b0 [ 249.744743][ T6301] ? gfs2_recover_set+0x240/0x240 [ 249.749787][ T6301] ? snprintf+0xe5/0x140 [ 249.754043][ T6301] ? __free_pages+0x95/0x1a0 [ 249.758645][ T6301] ? vscnprintf+0x80/0x80 [ 249.762990][ T6301] gfs2_fill_super+0x11ed/0x1ea0 [ 249.768031][ T6301] ? gfs2_reconfigure+0xd80/0xd80 [ 249.773164][ T6301] ? sb_set_blocksize+0xa5/0xe0 [ 249.778025][ T6301] get_tree_bdev+0x3e6/0x610 [ 249.782620][ T6301] ? gfs2_reconfigure+0xd80/0xd80 [ 249.787723][ T6301] gfs2_get_tree+0x4d/0x1e0 [ 249.792241][ T6301] vfs_get_tree+0x88/0x270 [ 249.796672][ T6301] do_new_mount+0x247/0xa40 [ 249.801207][ T6301] __se_sys_mount+0x2e3/0x3d0 [ 249.805900][ T6301] ? __x64_sys_mount+0xc0/0xc0 [ 249.808763][ T6297] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 249.810673][ T6301] ? lockdep_hardirqs_on+0x94/0x140 [ 249.823027][ T6301] ? __x64_sys_mount+0x1c/0xc0 [ 249.827802][ T6301] do_syscall_64+0x4c/0xa0 [ 249.832235][ T6301] ? clear_bhb_loop+0x30/0x80 [ 249.836920][ T6301] ? clear_bhb_loop+0x30/0x80 [ 249.841610][ T6301] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 249.847514][ T6301] RIP: 0033:0x7fa3eeafe34a [ 249.851946][ T6301] 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 [ 249.871563][ T6301] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 249.880000][ T6301] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 249.888413][ T6301] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 249.896392][ T6301] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 249.904395][ T6301] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 249.911303][ T6299] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 249.912369][ T6301] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 249.934480][ T6301] [ 249.952985][ T6299] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 250.069005][ T6305] loop4: detected capacity change from 0 to 32768 [ 250.145474][ T6303] loop5: detected capacity change from 0 to 32768 [ 250.166624][ T6301] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 250.196214][ T6303] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 250.205269][ T6305] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 250.221261][ T6305] CPU: 0 PID: 6305 Comm: syz.4.314 Not tainted syzkaller #0 [ 250.229076][ T6305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 250.239491][ T6305] Call Trace: [ 250.242889][ T6305] [ 250.245835][ T6305] dump_stack_lvl+0x188/0x250 [ 250.250616][ T6305] ? show_regs_print_info+0x20/0x20 [ 250.256540][ T6305] ? load_image+0x410/0x410 [ 250.261096][ T6305] sysfs_create_dir_ns+0x26a/0x290 [ 250.266334][ T6305] ? sysfs_warn_dup+0xa0/0xa0 [ 250.271155][ T6305] ? do_raw_spin_unlock+0x11d/0x230 [ 250.276420][ T6305] kobject_add_internal+0x5ba/0xcd0 [ 250.281777][ T6305] kobject_init_and_add+0x128/0x190 [ 250.287401][ T6305] ? lockdep_softirqs_off+0x430/0x430 [ 250.292809][ T6305] ? kobject_add+0x230/0x230 [ 250.297428][ T6305] ? __init_swait_queue_head+0xa4/0x140 [ 250.303168][ T6305] gfs2_sys_fs_add+0x24f/0x4b0 [ 250.308014][ T6305] ? gfs2_recover_set+0x240/0x240 [ 250.313042][ T6305] ? snprintf+0xe5/0x140 [ 250.317283][ T6305] ? __free_pages+0x95/0x1a0 [ 250.321889][ T6305] ? vscnprintf+0x80/0x80 [ 250.326330][ T6305] gfs2_fill_super+0x11ed/0x1ea0 [ 250.331288][ T6305] ? gfs2_reconfigure+0xd80/0xd80 [ 250.336352][ T6305] ? sb_set_blocksize+0xa5/0xe0 [ 250.341326][ T6305] get_tree_bdev+0x3e6/0x610 [ 250.345937][ T6305] ? gfs2_reconfigure+0xd80/0xd80 [ 250.350982][ T6305] gfs2_get_tree+0x4d/0x1e0 [ 250.355688][ T6305] vfs_get_tree+0x88/0x270 [ 250.360110][ T6305] do_new_mount+0x247/0xa40 [ 250.364710][ T6305] __se_sys_mount+0x2e3/0x3d0 [ 250.369423][ T6305] ? __x64_sys_mount+0xc0/0xc0 [ 250.374221][ T6305] ? lockdep_hardirqs_on+0x94/0x140 [ 250.379443][ T6305] ? __x64_sys_mount+0x1c/0xc0 [ 250.384240][ T6305] do_syscall_64+0x4c/0xa0 [ 250.388762][ T6305] ? clear_bhb_loop+0x30/0x80 [ 250.393442][ T6305] ? clear_bhb_loop+0x30/0x80 [ 250.398116][ T6305] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 250.404017][ T6305] RIP: 0033:0x7f1f2704534a [ 250.408452][ T6305] 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 [ 250.428063][ T6305] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 250.436487][ T6305] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 250.444564][ T6305] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 250.452632][ T6305] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 250.460702][ T6305] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 250.468684][ T6305] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 250.476673][ T6305] [ 250.505993][ T6301] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 250.513490][ T6303] CPU: 0 PID: 6303 Comm: syz.5.313 Not tainted syzkaller #0 [ 250.520973][ T6303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 250.531128][ T6303] Call Trace: [ 250.534503][ T6303] [ 250.537543][ T6303] dump_stack_lvl+0x188/0x250 [ 250.542244][ T6303] ? show_regs_print_info+0x20/0x20 [ 250.547444][ T6303] ? load_image+0x410/0x410 [ 250.552097][ T6303] sysfs_create_dir_ns+0x26a/0x290 [ 250.557559][ T6303] ? sysfs_warn_dup+0xa0/0xa0 [ 250.562346][ T6303] ? do_raw_spin_unlock+0x11d/0x230 [ 250.567538][ T6303] kobject_add_internal+0x5ba/0xcd0 [ 250.572752][ T6303] kobject_init_and_add+0x128/0x190 [ 250.577939][ T6303] ? lockdep_softirqs_off+0x430/0x430 [ 250.583431][ T6303] ? kobject_add+0x230/0x230 [ 250.588018][ T6303] ? __init_swait_queue_head+0xa4/0x140 [ 250.593660][ T6303] gfs2_sys_fs_add+0x24f/0x4b0 [ 250.598589][ T6303] ? gfs2_recover_set+0x240/0x240 [ 250.603619][ T6303] ? snprintf+0xe5/0x140 [ 250.607883][ T6303] ? __free_pages+0x95/0x1a0 [ 250.612552][ T6303] ? vscnprintf+0x80/0x80 [ 250.616888][ T6303] gfs2_fill_super+0x11ed/0x1ea0 [ 250.621833][ T6303] ? gfs2_reconfigure+0xd80/0xd80 [ 250.626856][ T6303] ? sb_set_blocksize+0xa5/0xe0 [ 250.631723][ T6303] get_tree_bdev+0x3e6/0x610 [ 250.636498][ T6303] ? gfs2_reconfigure+0xd80/0xd80 [ 250.641537][ T6303] gfs2_get_tree+0x4d/0x1e0 [ 250.646196][ T6303] vfs_get_tree+0x88/0x270 [ 250.650707][ T6303] do_new_mount+0x247/0xa40 [ 250.655214][ T6303] __se_sys_mount+0x2e3/0x3d0 [ 250.660305][ T6303] ? __x64_sys_mount+0xc0/0xc0 [ 250.665246][ T6303] ? lockdep_hardirqs_on+0x94/0x140 [ 250.670522][ T6303] ? __x64_sys_mount+0x1c/0xc0 [ 250.675288][ T6303] do_syscall_64+0x4c/0xa0 [ 250.679690][ T6303] ? clear_bhb_loop+0x30/0x80 [ 250.684349][ T6303] ? clear_bhb_loop+0x30/0x80 [ 250.689009][ T6303] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 250.694976][ T6303] RIP: 0033:0x7fb1ebe1134a [ 250.699467][ T6303] 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 [ 250.719234][ T6303] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 250.727634][ T6303] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 250.735677][ T6303] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 250.743629][ T6303] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 250.751599][ T6303] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 250.759571][ T6303] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 250.767539][ T6303] [ 250.781142][ T6305] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 250.853533][ T6305] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 251.292157][ T6307] loop1: detected capacity change from 0 to 32768 [ 251.340786][ T6307] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 251.359215][ T6307] CPU: 1 PID: 6307 Comm: syz.1.315 Not tainted syzkaller #0 [ 251.367683][ T6307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 251.377935][ T6307] Call Trace: [ 251.379367][ T6309] loop0: detected capacity change from 0 to 32768 [ 251.381230][ T6307] [ 251.381239][ T6307] dump_stack_lvl+0x188/0x250 [ 251.381261][ T6307] ? show_regs_print_info+0x20/0x20 [ 251.401712][ T6307] ? load_image+0x410/0x410 [ 251.406336][ T6307] sysfs_create_dir_ns+0x26a/0x290 [ 251.411471][ T6307] ? sysfs_warn_dup+0xa0/0xa0 [ 251.416185][ T6307] ? do_raw_spin_unlock+0x11d/0x230 [ 251.421402][ T6307] kobject_add_internal+0x5ba/0xcd0 [ 251.426632][ T6307] kobject_init_and_add+0x128/0x190 [ 251.431897][ T6307] ? lockdep_softirqs_off+0x430/0x430 [ 251.437296][ T6307] ? kobject_add+0x230/0x230 [ 251.441912][ T6307] ? __init_swait_queue_head+0xa4/0x140 [ 251.447524][ T6307] gfs2_sys_fs_add+0x24f/0x4b0 [ 251.452392][ T6307] ? gfs2_recover_set+0x240/0x240 [ 251.457434][ T6307] ? snprintf+0xe5/0x140 [ 251.461687][ T6307] ? __free_pages+0x95/0x1a0 [ 251.466287][ T6307] ? vscnprintf+0x80/0x80 [ 251.470651][ T6307] gfs2_fill_super+0x11ed/0x1ea0 [ 251.475611][ T6307] ? gfs2_reconfigure+0xd80/0xd80 [ 251.480666][ T6307] ? sb_set_blocksize+0xa5/0xe0 [ 251.485587][ T6307] get_tree_bdev+0x3e6/0x610 [ 251.490202][ T6307] ? gfs2_reconfigure+0xd80/0xd80 [ 251.492923][ T6303] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 251.495239][ T6307] gfs2_get_tree+0x4d/0x1e0 [ 251.495264][ T6307] vfs_get_tree+0x88/0x270 [ 251.518201][ T6307] do_new_mount+0x247/0xa40 [ 251.522738][ T6307] __se_sys_mount+0x2e3/0x3d0 [ 251.527441][ T6307] ? __x64_sys_mount+0xc0/0xc0 [ 251.529570][ T6303] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 251.532213][ T6307] ? lockdep_hardirqs_on+0x94/0x140 [ 251.544670][ T6307] ? __x64_sys_mount+0x1c/0xc0 [ 251.549884][ T6307] do_syscall_64+0x4c/0xa0 [ 251.554316][ T6307] ? clear_bhb_loop+0x30/0x80 [ 251.559004][ T6307] ? clear_bhb_loop+0x30/0x80 [ 251.563790][ T6307] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 251.569691][ T6307] RIP: 0033:0x7f298d04b34a [ 251.574178][ T6307] 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 [ 251.594070][ T6307] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 251.598689][ T6311] loop2: detected capacity change from 0 to 32768 [ 251.602491][ T6307] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 251.617008][ T6307] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 251.624996][ T6307] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 251.633156][ T6307] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 251.641920][ T6307] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 251.650356][ T6307] [ 251.658613][ T6307] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 251.673686][ T6307] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 251.700681][ T6309] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 251.712831][ T6311] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 251.726674][ T6311] CPU: 0 PID: 6311 Comm: syz.2.317 Not tainted syzkaller #0 [ 251.734000][ T6311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 251.744152][ T6311] Call Trace: [ 251.747440][ T6311] [ 251.750382][ T6311] dump_stack_lvl+0x188/0x250 [ 251.755087][ T6311] ? show_regs_print_info+0x20/0x20 [ 251.760329][ T6311] ? load_image+0x410/0x410 [ 251.764863][ T6311] sysfs_create_dir_ns+0x26a/0x290 [ 251.770082][ T6311] ? sysfs_warn_dup+0xa0/0xa0 [ 251.774867][ T6311] ? do_raw_spin_unlock+0x11d/0x230 [ 251.780180][ T6311] kobject_add_internal+0x5ba/0xcd0 [ 251.785408][ T6311] kobject_init_and_add+0x128/0x190 [ 251.790629][ T6311] ? lockdep_softirqs_off+0x430/0x430 [ 251.796756][ T6311] ? kobject_add+0x230/0x230 [ 251.801811][ T6311] ? __init_swait_queue_head+0xa4/0x140 [ 251.807835][ T6311] gfs2_sys_fs_add+0x24f/0x4b0 [ 251.812982][ T6311] ? gfs2_recover_set+0x240/0x240 [ 251.818202][ T6311] ? snprintf+0xe5/0x140 [ 251.822469][ T6311] ? __free_pages+0x95/0x1a0 [ 251.827097][ T6311] ? vscnprintf+0x80/0x80 [ 251.831452][ T6311] gfs2_fill_super+0x11ed/0x1ea0 [ 251.836420][ T6311] ? gfs2_reconfigure+0xd80/0xd80 [ 251.841492][ T6311] ? sb_set_blocksize+0xa5/0xe0 [ 251.846363][ T6311] get_tree_bdev+0x3e6/0x610 [ 251.851094][ T6311] ? gfs2_reconfigure+0xd80/0xd80 [ 251.856232][ T6311] gfs2_get_tree+0x4d/0x1e0 [ 251.860803][ T6311] vfs_get_tree+0x88/0x270 [ 251.865237][ T6311] do_new_mount+0x247/0xa40 [ 251.869941][ T6311] __se_sys_mount+0x2e3/0x3d0 [ 251.874636][ T6311] ? __x64_sys_mount+0xc0/0xc0 [ 251.879411][ T6311] ? lockdep_hardirqs_on+0x94/0x140 [ 251.884703][ T6311] ? __x64_sys_mount+0x1c/0xc0 [ 251.889486][ T6311] do_syscall_64+0x4c/0xa0 [ 251.893914][ T6311] ? clear_bhb_loop+0x30/0x80 [ 251.898601][ T6311] ? clear_bhb_loop+0x30/0x80 [ 251.903305][ T6311] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 251.909299][ T6311] RIP: 0033:0x7fa3eeafe34a [ 251.913742][ T6311] 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 [ 251.933618][ T6311] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 251.942048][ T6311] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 251.950318][ T6311] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 251.958680][ T6311] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 251.966931][ T6311] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 251.975026][ T6311] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 251.983211][ T6311] [ 251.998220][ T6311] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 252.042654][ T6311] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 252.050451][ T6309] CPU: 0 PID: 6309 Comm: syz.0.316 Not tainted syzkaller #0 [ 252.057754][ T6309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 252.067819][ T6309] Call Trace: [ 252.071105][ T6309] [ 252.074030][ T6309] dump_stack_lvl+0x188/0x250 [ 252.078721][ T6309] ? show_regs_print_info+0x20/0x20 [ 252.083923][ T6309] ? load_image+0x410/0x410 [ 252.088445][ T6309] sysfs_create_dir_ns+0x26a/0x290 [ 252.093566][ T6309] ? sysfs_warn_dup+0xa0/0xa0 [ 252.098251][ T6309] ? do_raw_spin_unlock+0x11d/0x230 [ 252.103629][ T6309] kobject_add_internal+0x5ba/0xcd0 [ 252.108928][ T6309] kobject_init_and_add+0x128/0x190 [ 252.114138][ T6309] ? lockdep_softirqs_off+0x430/0x430 [ 252.119526][ T6309] ? kobject_add+0x230/0x230 [ 252.124135][ T6309] ? __init_swait_queue_head+0xa4/0x140 [ 252.129695][ T6309] gfs2_sys_fs_add+0x24f/0x4b0 [ 252.134468][ T6309] ? gfs2_recover_set+0x240/0x240 [ 252.139500][ T6309] ? snprintf+0xe5/0x140 [ 252.143842][ T6309] ? __free_pages+0x95/0x1a0 [ 252.148440][ T6309] ? vscnprintf+0x80/0x80 [ 252.152781][ T6309] gfs2_fill_super+0x11ed/0x1ea0 [ 252.157736][ T6309] ? gfs2_reconfigure+0xd80/0xd80 [ 252.162895][ T6309] ? sb_set_blocksize+0xa5/0xe0 [ 252.167770][ T6309] get_tree_bdev+0x3e6/0x610 [ 252.172382][ T6309] ? gfs2_reconfigure+0xd80/0xd80 [ 252.177424][ T6309] gfs2_get_tree+0x4d/0x1e0 [ 252.182017][ T6309] vfs_get_tree+0x88/0x270 [ 252.186450][ T6309] do_new_mount+0x247/0xa40 [ 252.191066][ T6309] __se_sys_mount+0x2e3/0x3d0 [ 252.197121][ T6309] ? __x64_sys_mount+0xc0/0xc0 [ 252.202174][ T6309] ? lockdep_hardirqs_on+0x94/0x140 [ 252.207425][ T6309] ? __x64_sys_mount+0x1c/0xc0 [ 252.212232][ T6309] do_syscall_64+0x4c/0xa0 [ 252.217187][ T6309] ? clear_bhb_loop+0x30/0x80 [ 252.221973][ T6309] ? clear_bhb_loop+0x30/0x80 [ 252.226671][ T6309] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 252.232576][ T6309] RIP: 0033:0x7f364914634a [ 252.237001][ T6309] 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 [ 252.256887][ T6309] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 252.265405][ T6309] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 252.273408][ T6309] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 252.281736][ T6309] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 252.289810][ T6309] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 252.297798][ T6309] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 252.305885][ T6309] [ 252.358497][ T6309] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 252.372835][ T6309] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 252.406660][ T6313] loop4: detected capacity change from 0 to 32768 [ 252.446330][ T6313] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 252.503618][ T6313] CPU: 1 PID: 6313 Comm: syz.4.318 Not tainted syzkaller #0 [ 252.511224][ T6313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 252.521291][ T6313] Call Trace: [ 252.524681][ T6313] [ 252.527699][ T6313] dump_stack_lvl+0x188/0x250 [ 252.532996][ T6313] ? show_regs_print_info+0x20/0x20 [ 252.538218][ T6313] ? load_image+0x410/0x410 [ 252.542797][ T6313] sysfs_create_dir_ns+0x26a/0x290 [ 252.548101][ T6313] ? sysfs_warn_dup+0xa0/0xa0 [ 252.552817][ T6313] ? do_raw_spin_unlock+0x11d/0x230 [ 252.558031][ T6313] kobject_add_internal+0x5ba/0xcd0 [ 252.563264][ T6313] kobject_init_and_add+0x128/0x190 [ 252.568470][ T6313] ? lockdep_softirqs_off+0x430/0x430 [ 252.573873][ T6313] ? kobject_add+0x230/0x230 [ 252.578481][ T6313] ? __init_swait_queue_head+0xa4/0x140 [ 252.584039][ T6313] gfs2_sys_fs_add+0x24f/0x4b0 [ 252.588814][ T6313] ? gfs2_recover_set+0x240/0x240 [ 252.593939][ T6313] ? snprintf+0xe5/0x140 [ 252.598184][ T6313] ? __free_pages+0x95/0x1a0 [ 252.602783][ T6313] ? vscnprintf+0x80/0x80 [ 252.607122][ T6313] gfs2_fill_super+0x11ed/0x1ea0 [ 252.612178][ T6313] ? gfs2_reconfigure+0xd80/0xd80 [ 252.617242][ T6313] ? sb_set_blocksize+0xa5/0xe0 [ 252.622101][ T6313] get_tree_bdev+0x3e6/0x610 [ 252.626694][ T6313] ? gfs2_reconfigure+0xd80/0xd80 [ 252.631726][ T6313] gfs2_get_tree+0x4d/0x1e0 [ 252.636247][ T6313] vfs_get_tree+0x88/0x270 [ 252.640691][ T6313] do_new_mount+0x247/0xa40 [ 252.645209][ T6313] __se_sys_mount+0x2e3/0x3d0 [ 252.649997][ T6313] ? __x64_sys_mount+0xc0/0xc0 [ 252.654789][ T6313] ? lockdep_hardirqs_on+0x94/0x140 [ 252.659997][ T6313] ? __x64_sys_mount+0x1c/0xc0 [ 252.664773][ T6313] do_syscall_64+0x4c/0xa0 [ 252.669203][ T6313] ? clear_bhb_loop+0x30/0x80 [ 252.673912][ T6313] ? clear_bhb_loop+0x30/0x80 [ 252.678614][ T6313] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 252.684629][ T6313] RIP: 0033:0x7f1f2704534a [ 252.689052][ T6313] 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 [ 252.708765][ T6313] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 252.717203][ T6313] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 252.725193][ T6313] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 252.733285][ T6313] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 252.741273][ T6313] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 252.749255][ T6313] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 252.757271][ T6313] [ 252.980202][ T6315] loop1: detected capacity change from 0 to 32768 [ 253.007444][ T6315] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 253.028231][ T6315] CPU: 0 PID: 6315 Comm: syz.1.319 Not tainted syzkaller #0 [ 253.035560][ T6315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 253.045805][ T6315] Call Trace: [ 253.049188][ T6315] [ 253.052122][ T6315] dump_stack_lvl+0x188/0x250 [ 253.056821][ T6315] ? show_regs_print_info+0x20/0x20 [ 253.062053][ T6315] ? load_image+0x410/0x410 [ 253.066584][ T6315] sysfs_create_dir_ns+0x26a/0x290 [ 253.071723][ T6315] ? sysfs_warn_dup+0xa0/0xa0 [ 253.076433][ T6315] ? do_raw_spin_unlock+0x11d/0x230 [ 253.081640][ T6315] kobject_add_internal+0x5ba/0xcd0 [ 253.086861][ T6315] kobject_init_and_add+0x128/0x190 [ 253.092134][ T6315] ? lockdep_softirqs_off+0x430/0x430 [ 253.097876][ T6315] ? kobject_add+0x230/0x230 [ 253.102527][ T6315] ? __init_swait_queue_head+0xa4/0x140 [ 253.108094][ T6315] gfs2_sys_fs_add+0x24f/0x4b0 [ 253.112926][ T6315] ? gfs2_recover_set+0x240/0x240 [ 253.118059][ T6315] ? snprintf+0xe5/0x140 [ 253.122309][ T6315] ? __free_pages+0x95/0x1a0 [ 253.126919][ T6315] ? vscnprintf+0x80/0x80 [ 253.131368][ T6315] gfs2_fill_super+0x11ed/0x1ea0 [ 253.136734][ T6315] ? gfs2_reconfigure+0xd80/0xd80 [ 253.141805][ T6315] ? sb_set_blocksize+0xa5/0xe0 [ 253.147036][ T6315] get_tree_bdev+0x3e6/0x610 [ 253.151734][ T6315] ? gfs2_reconfigure+0xd80/0xd80 [ 253.156786][ T6315] gfs2_get_tree+0x4d/0x1e0 [ 253.161317][ T6315] vfs_get_tree+0x88/0x270 [ 253.166095][ T6315] do_new_mount+0x247/0xa40 [ 253.170798][ T6315] __se_sys_mount+0x2e3/0x3d0 [ 253.175516][ T6315] ? __x64_sys_mount+0xc0/0xc0 [ 253.180379][ T6315] ? lockdep_hardirqs_on+0x94/0x140 [ 253.185593][ T6315] ? __x64_sys_mount+0x1c/0xc0 [ 253.190382][ T6315] do_syscall_64+0x4c/0xa0 [ 253.194866][ T6315] ? clear_bhb_loop+0x30/0x80 [ 253.199729][ T6315] ? clear_bhb_loop+0x30/0x80 [ 253.204427][ T6315] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 253.210332][ T6315] RIP: 0033:0x7f298d04b34a [ 253.214784][ T6315] 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 [ 253.234758][ T6315] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 253.243188][ T6315] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 253.251175][ T6315] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 253.259163][ T6315] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 253.267150][ T6315] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 253.275755][ T6315] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 253.283763][ T6315] [ 253.293674][ T6315] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 253.294384][ T6313] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 253.323300][ T6313] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 253.353676][ T6315] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files 2026/06/27 02:09:28 executed programs: 317 [ 253.664846][ T6321] loop0: detected capacity change from 0 to 32768 [ 253.710149][ T6317] loop5: detected capacity change from 0 to 32768 [ 253.726704][ T6321] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 253.759232][ T6321] CPU: 1 PID: 6321 Comm: syz.0.321 Not tainted syzkaller #0 [ 253.766574][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 253.776830][ T6321] Call Trace: [ 253.780140][ T6321] [ 253.783090][ T6321] dump_stack_lvl+0x188/0x250 [ 253.787967][ T6321] ? show_regs_print_info+0x20/0x20 [ 253.793287][ T6321] ? load_image+0x410/0x410 [ 253.797943][ T6321] sysfs_create_dir_ns+0x26a/0x290 [ 253.803085][ T6321] ? sysfs_warn_dup+0xa0/0xa0 [ 253.807792][ T6321] ? do_raw_spin_unlock+0x11d/0x230 [ 253.813023][ T6321] kobject_add_internal+0x5ba/0xcd0 [ 253.818262][ T6321] kobject_init_and_add+0x128/0x190 [ 253.823672][ T6321] ? lockdep_softirqs_off+0x430/0x430 [ 253.829076][ T6321] ? kobject_add+0x230/0x230 [ 253.833796][ T6321] ? __init_swait_queue_head+0xa4/0x140 [ 253.839379][ T6321] gfs2_sys_fs_add+0x24f/0x4b0 [ 253.844174][ T6321] ? gfs2_recover_set+0x240/0x240 [ 253.849361][ T6321] ? snprintf+0xe5/0x140 [ 253.853645][ T6321] ? __free_pages+0x95/0x1a0 [ 253.858360][ T6321] ? vscnprintf+0x80/0x80 [ 253.862731][ T6321] gfs2_fill_super+0x11ed/0x1ea0 [ 253.867717][ T6321] ? gfs2_reconfigure+0xd80/0xd80 [ 253.872786][ T6321] ? sb_set_blocksize+0xa5/0xe0 [ 253.878080][ T6321] get_tree_bdev+0x3e6/0x610 [ 253.882704][ T6321] ? gfs2_reconfigure+0xd80/0xd80 [ 253.887771][ T6321] gfs2_get_tree+0x4d/0x1e0 [ 253.892753][ T6321] vfs_get_tree+0x88/0x270 [ 253.897304][ T6321] do_new_mount+0x247/0xa40 [ 253.902115][ T6321] __se_sys_mount+0x2e3/0x3d0 [ 253.907016][ T6321] ? __x64_sys_mount+0xc0/0xc0 [ 253.912002][ T6321] ? lockdep_hardirqs_on+0x94/0x140 [ 253.917513][ T6321] ? __x64_sys_mount+0x1c/0xc0 [ 253.922599][ T6321] do_syscall_64+0x4c/0xa0 [ 253.927782][ T6321] ? clear_bhb_loop+0x30/0x80 [ 253.932497][ T6321] ? clear_bhb_loop+0x30/0x80 [ 253.937311][ T6321] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 253.943244][ T6321] RIP: 0033:0x7f364914634a [ 253.947677][ T6321] 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 [ 253.967388][ T6321] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 253.975837][ T6321] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 253.983833][ T6321] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 253.991865][ T6321] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 253.999955][ T6321] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 254.008128][ T6321] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 254.016150][ T6321] [ 254.027820][ T6321] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 254.042051][ T6321] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 254.071204][ T6320] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 254.086818][ T6317] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 254.116771][ T6320] CPU: 0 PID: 6320 Comm: syz.2.322 Not tainted syzkaller #0 [ 254.124228][ T6320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 254.134298][ T6320] Call Trace: [ 254.137607][ T6320] [ 254.140664][ T6320] dump_stack_lvl+0x188/0x250 [ 254.145373][ T6320] ? show_regs_print_info+0x20/0x20 [ 254.150596][ T6320] ? load_image+0x410/0x410 [ 254.155140][ T6320] sysfs_create_dir_ns+0x26a/0x290 [ 254.160271][ T6320] ? sysfs_warn_dup+0xa0/0xa0 [ 254.164963][ T6320] ? do_raw_spin_unlock+0x11d/0x230 [ 254.170197][ T6320] kobject_add_internal+0x5ba/0xcd0 [ 254.175800][ T6320] kobject_init_and_add+0x128/0x190 [ 254.181121][ T6320] ? lockdep_softirqs_off+0x430/0x430 [ 254.186520][ T6320] ? kobject_add+0x230/0x230 [ 254.191137][ T6320] ? __init_swait_queue_head+0xa4/0x140 [ 254.196713][ T6320] gfs2_sys_fs_add+0x24f/0x4b0 [ 254.201508][ T6320] ? gfs2_recover_set+0x240/0x240 [ 254.206562][ T6320] ? snprintf+0xe5/0x140 [ 254.210914][ T6320] ? __free_pages+0x95/0x1a0 [ 254.215542][ T6320] ? vscnprintf+0x80/0x80 [ 254.219935][ T6320] gfs2_fill_super+0x11ed/0x1ea0 [ 254.224911][ T6320] ? gfs2_reconfigure+0xd80/0xd80 [ 254.229978][ T6320] ? sb_set_blocksize+0xa5/0xe0 [ 254.234853][ T6320] get_tree_bdev+0x3e6/0x610 [ 254.239484][ T6320] ? gfs2_reconfigure+0xd80/0xd80 [ 254.244699][ T6320] gfs2_get_tree+0x4d/0x1e0 [ 254.249239][ T6320] vfs_get_tree+0x88/0x270 [ 254.253696][ T6320] do_new_mount+0x247/0xa40 [ 254.258247][ T6320] __se_sys_mount+0x2e3/0x3d0 [ 254.262986][ T6320] ? __x64_sys_mount+0xc0/0xc0 [ 254.267775][ T6320] ? lockdep_hardirqs_on+0x94/0x140 [ 254.273425][ T6320] ? __x64_sys_mount+0x1c/0xc0 [ 254.278331][ T6320] do_syscall_64+0x4c/0xa0 [ 254.282876][ T6320] ? clear_bhb_loop+0x30/0x80 [ 254.287575][ T6320] ? clear_bhb_loop+0x30/0x80 [ 254.292360][ T6320] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 254.298364][ T6320] RIP: 0033:0x7fa3eeafe34a [ 254.302962][ T6320] 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 [ 254.322756][ T6320] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 254.331376][ T6320] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 254.339495][ T6320] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 254.347667][ T6320] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 254.355651][ T6320] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 254.363813][ T6320] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 254.371896][ T6320] [ 254.376255][ T6317] CPU: 1 PID: 6317 Comm: syz.5.320 Not tainted syzkaller #0 [ 254.383574][ T6317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 254.393899][ T6317] Call Trace: [ 254.397269][ T6317] [ 254.400208][ T6317] dump_stack_lvl+0x188/0x250 [ 254.404907][ T6317] ? show_regs_print_info+0x20/0x20 [ 254.410114][ T6317] ? load_image+0x410/0x410 [ 254.414631][ T6317] sysfs_create_dir_ns+0x26a/0x290 [ 254.419758][ T6317] ? sysfs_warn_dup+0xa0/0xa0 [ 254.424452][ T6317] ? do_raw_spin_unlock+0x11d/0x230 [ 254.429768][ T6317] kobject_add_internal+0x5ba/0xcd0 [ 254.434990][ T6317] kobject_init_and_add+0x128/0x190 [ 254.440250][ T6317] ? lockdep_softirqs_off+0x430/0x430 [ 254.445666][ T6317] ? kobject_add+0x230/0x230 [ 254.450328][ T6317] ? __init_swait_queue_head+0xa4/0x140 [ 254.456335][ T6317] gfs2_sys_fs_add+0x24f/0x4b0 [ 254.461127][ T6317] ? gfs2_recover_set+0x240/0x240 [ 254.466257][ T6317] ? snprintf+0xe5/0x140 [ 254.470597][ T6317] ? __free_pages+0x95/0x1a0 [ 254.475211][ T6317] ? vscnprintf+0x80/0x80 [ 254.479558][ T6317] gfs2_fill_super+0x11ed/0x1ea0 [ 254.484526][ T6317] ? gfs2_reconfigure+0xd80/0xd80 [ 254.489771][ T6317] ? sb_set_blocksize+0xa5/0xe0 [ 254.494820][ T6317] get_tree_bdev+0x3e6/0x610 [ 254.499427][ T6317] ? gfs2_reconfigure+0xd80/0xd80 [ 254.504559][ T6317] gfs2_get_tree+0x4d/0x1e0 [ 254.509072][ T6317] vfs_get_tree+0x88/0x270 [ 254.513524][ T6317] do_new_mount+0x247/0xa40 [ 254.518055][ T6317] __se_sys_mount+0x2e3/0x3d0 [ 254.522746][ T6317] ? __x64_sys_mount+0xc0/0xc0 [ 254.527525][ T6317] ? lockdep_hardirqs_on+0x94/0x140 [ 254.532826][ T6317] ? __x64_sys_mount+0x1c/0xc0 [ 254.537883][ T6317] do_syscall_64+0x4c/0xa0 [ 254.542577][ T6317] ? clear_bhb_loop+0x30/0x80 [ 254.547364][ T6317] ? clear_bhb_loop+0x30/0x80 [ 254.552181][ T6317] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 254.558094][ T6317] RIP: 0033:0x7fb1ebe1134a [ 254.562524][ T6317] 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 [ 254.582140][ T6317] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 254.590669][ T6317] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 254.598670][ T6317] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 254.606680][ T6317] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 254.614666][ T6317] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 254.622790][ T6317] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 254.630848][ T6317] [ 254.650518][ T6317] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 254.677751][ T6317] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 254.696484][ T6320] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 254.725593][ T6320] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 254.750820][ T6325] set_capacity_and_notify: 1 callbacks suppressed [ 254.750834][ T6325] loop4: detected capacity change from 0 to 32768 [ 254.847072][ T6323] loop1: detected capacity change from 0 to 32768 [ 254.864868][ T6325] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 254.888472][ T6325] CPU: 1 PID: 6325 Comm: syz.4.324 Not tainted syzkaller #0 [ 254.895822][ T6325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 254.905984][ T6325] Call Trace: [ 254.909280][ T6325] [ 254.912215][ T6325] dump_stack_lvl+0x188/0x250 [ 254.917006][ T6325] ? show_regs_print_info+0x20/0x20 [ 254.922216][ T6325] ? load_image+0x410/0x410 [ 254.926743][ T6325] sysfs_create_dir_ns+0x26a/0x290 [ 254.931872][ T6325] ? sysfs_warn_dup+0xa0/0xa0 [ 254.936561][ T6325] ? do_raw_spin_unlock+0x11d/0x230 [ 254.941776][ T6325] kobject_add_internal+0x5ba/0xcd0 [ 254.947077][ T6325] kobject_init_and_add+0x128/0x190 [ 254.952373][ T6325] ? lockdep_softirqs_off+0x430/0x430 [ 254.957776][ T6325] ? kobject_add+0x230/0x230 [ 254.962392][ T6325] ? __init_swait_queue_head+0xa4/0x140 [ 254.968048][ T6325] gfs2_sys_fs_add+0x24f/0x4b0 [ 254.972833][ T6325] ? gfs2_recover_set+0x240/0x240 [ 254.977873][ T6325] ? snprintf+0xe5/0x140 [ 254.982123][ T6325] ? __free_pages+0x95/0x1a0 [ 254.986741][ T6325] ? vscnprintf+0x80/0x80 [ 254.991091][ T6325] gfs2_fill_super+0x11ed/0x1ea0 [ 254.996049][ T6325] ? gfs2_reconfigure+0xd80/0xd80 [ 255.001275][ T6325] ? sb_set_blocksize+0xa5/0xe0 [ 255.006134][ T6325] get_tree_bdev+0x3e6/0x610 [ 255.010741][ T6325] ? gfs2_reconfigure+0xd80/0xd80 [ 255.015868][ T6325] gfs2_get_tree+0x4d/0x1e0 [ 255.020387][ T6325] vfs_get_tree+0x88/0x270 [ 255.024825][ T6325] do_new_mount+0x247/0xa40 [ 255.029349][ T6325] __se_sys_mount+0x2e3/0x3d0 [ 255.034134][ T6325] ? __x64_sys_mount+0xc0/0xc0 [ 255.039068][ T6325] ? lockdep_hardirqs_on+0x94/0x140 [ 255.044289][ T6325] ? __x64_sys_mount+0x1c/0xc0 [ 255.049161][ T6325] do_syscall_64+0x4c/0xa0 [ 255.053582][ T6325] ? clear_bhb_loop+0x30/0x80 [ 255.058265][ T6325] ? clear_bhb_loop+0x30/0x80 [ 255.062951][ T6325] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 255.068859][ T6325] RIP: 0033:0x7f1f2704534a [ 255.073293][ T6325] 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 [ 255.093188][ T6325] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 255.101811][ T6325] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 255.110199][ T6325] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 255.118328][ T6325] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 255.126643][ T6325] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 255.134635][ T6325] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 255.137745][ T6327] loop0: detected capacity change from 0 to 32768 [ 255.142730][ T6325] [ 255.157170][ T6325] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 255.171796][ T6325] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 255.222894][ T6323] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 255.237821][ T6323] CPU: 0 PID: 6323 Comm: syz.1.323 Not tainted syzkaller #0 [ 255.245412][ T6323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 255.255477][ T6323] Call Trace: [ 255.258789][ T6323] [ 255.261744][ T6323] dump_stack_lvl+0x188/0x250 [ 255.266700][ T6323] ? show_regs_print_info+0x20/0x20 [ 255.272044][ T6323] ? load_image+0x410/0x410 [ 255.276584][ T6323] sysfs_create_dir_ns+0x26a/0x290 [ 255.281897][ T6323] ? sysfs_warn_dup+0xa0/0xa0 [ 255.286597][ T6323] ? do_raw_spin_unlock+0x11d/0x230 [ 255.291816][ T6323] kobject_add_internal+0x5ba/0xcd0 [ 255.297048][ T6323] kobject_init_and_add+0x128/0x190 [ 255.302343][ T6323] ? lockdep_softirqs_off+0x430/0x430 [ 255.307738][ T6323] ? kobject_add+0x230/0x230 [ 255.312350][ T6323] ? __init_swait_queue_head+0xa4/0x140 [ 255.317917][ T6323] gfs2_sys_fs_add+0x24f/0x4b0 [ 255.322784][ T6323] ? gfs2_recover_set+0x240/0x240 [ 255.327827][ T6323] ? snprintf+0xe5/0x140 [ 255.332097][ T6323] ? __free_pages+0x95/0x1a0 [ 255.336699][ T6323] ? vscnprintf+0x80/0x80 [ 255.341049][ T6323] gfs2_fill_super+0x11ed/0x1ea0 [ 255.346180][ T6323] ? gfs2_reconfigure+0xd80/0xd80 [ 255.351238][ T6323] ? sb_set_blocksize+0xa5/0xe0 [ 255.356115][ T6323] get_tree_bdev+0x3e6/0x610 [ 255.360833][ T6323] ? gfs2_reconfigure+0xd80/0xd80 [ 255.365882][ T6323] gfs2_get_tree+0x4d/0x1e0 [ 255.370400][ T6323] vfs_get_tree+0x88/0x270 [ 255.374832][ T6323] do_new_mount+0x247/0xa40 [ 255.379359][ T6323] __se_sys_mount+0x2e3/0x3d0 [ 255.384061][ T6323] ? __x64_sys_mount+0xc0/0xc0 [ 255.388929][ T6323] ? lockdep_hardirqs_on+0x94/0x140 [ 255.394179][ T6323] ? __x64_sys_mount+0x1c/0xc0 [ 255.398953][ T6323] do_syscall_64+0x4c/0xa0 [ 255.403381][ T6323] ? clear_bhb_loop+0x30/0x80 [ 255.408063][ T6323] ? clear_bhb_loop+0x30/0x80 [ 255.412838][ T6323] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 255.418825][ T6323] RIP: 0033:0x7f298d04b34a [ 255.423262][ T6323] 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 [ 255.443571][ T6323] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 255.451996][ T6323] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 255.459990][ T6323] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 255.468009][ T6323] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 255.476027][ T6323] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 255.484016][ T6323] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 255.492036][ T6323] [ 255.624438][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 255.632607][ T6327] CPU: 1 PID: 6327 Comm: syz.0.325 Not tainted syzkaller #0 [ 255.636468][ T1422] ieee802154 phy0 wpan0: encryption failed: -22 [ 255.639895][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 255.646188][ T1422] ieee802154 phy1 wpan1: encryption failed: -22 [ 255.656184][ T6327] Call Trace: [ 255.656202][ T6327] [ 255.656210][ T6327] dump_stack_lvl+0x188/0x250 [ 255.656233][ T6327] ? show_regs_print_info+0x20/0x20 [ 255.656249][ T6327] ? load_image+0x410/0x410 [ 255.656273][ T6327] sysfs_create_dir_ns+0x26a/0x290 [ 255.688453][ T6327] ? sysfs_warn_dup+0xa0/0xa0 [ 255.693153][ T6327] ? do_raw_spin_unlock+0x11d/0x230 [ 255.698356][ T6327] kobject_add_internal+0x5ba/0xcd0 [ 255.703762][ T6327] kobject_init_and_add+0x128/0x190 [ 255.708989][ T6327] ? lockdep_softirqs_off+0x430/0x430 [ 255.714381][ T6327] ? kobject_add+0x230/0x230 [ 255.719001][ T6327] ? __init_swait_queue_head+0xa4/0x140 [ 255.724564][ T6327] gfs2_sys_fs_add+0x24f/0x4b0 [ 255.729428][ T6327] ? gfs2_recover_set+0x240/0x240 [ 255.734729][ T6327] ? snprintf+0xe5/0x140 [ 255.739070][ T6327] ? __free_pages+0x95/0x1a0 [ 255.743761][ T6327] ? vscnprintf+0x80/0x80 [ 255.748199][ T6327] gfs2_fill_super+0x11ed/0x1ea0 [ 255.753166][ T6327] ? gfs2_reconfigure+0xd80/0xd80 [ 255.758227][ T6327] ? sb_set_blocksize+0xa5/0xe0 [ 255.763104][ T6327] get_tree_bdev+0x3e6/0x610 [ 255.767712][ T6327] ? gfs2_reconfigure+0xd80/0xd80 [ 255.772928][ T6327] gfs2_get_tree+0x4d/0x1e0 [ 255.777452][ T6327] vfs_get_tree+0x88/0x270 [ 255.781886][ T6327] do_new_mount+0x247/0xa40 [ 255.786400][ T6327] __se_sys_mount+0x2e3/0x3d0 [ 255.791104][ T6327] ? __x64_sys_mount+0xc0/0xc0 [ 255.795888][ T6327] ? lockdep_hardirqs_on+0x94/0x140 [ 255.801101][ T6327] ? __x64_sys_mount+0x1c/0xc0 [ 255.805868][ T6327] do_syscall_64+0x4c/0xa0 [ 255.810379][ T6327] ? clear_bhb_loop+0x30/0x80 [ 255.815089][ T6327] ? clear_bhb_loop+0x30/0x80 [ 255.819778][ T6327] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 255.825689][ T6327] RIP: 0033:0x7f364914634a [ 255.830116][ T6327] 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 [ 255.849731][ T6327] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 255.858160][ T6327] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 255.866144][ T6327] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 255.874126][ T6327] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 255.882106][ T6327] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 255.890092][ T6327] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 255.898090][ T6327] [ 256.102602][ T6330] loop5: detected capacity change from 0 to 32768 [ 256.135108][ T6323] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 256.142345][ T6330] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 256.169584][ T6323] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 256.184054][ T6330] CPU: 0 PID: 6330 Comm: syz.5.326 Not tainted syzkaller #0 [ 256.191379][ T6330] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 256.201450][ T6330] Call Trace: [ 256.204743][ T6330] [ 256.207677][ T6330] dump_stack_lvl+0x188/0x250 [ 256.212361][ T6330] ? show_regs_print_info+0x20/0x20 [ 256.217566][ T6330] ? load_image+0x410/0x410 [ 256.222103][ T6330] sysfs_create_dir_ns+0x26a/0x290 [ 256.227227][ T6330] ? sysfs_warn_dup+0xa0/0xa0 [ 256.232006][ T6330] ? do_raw_spin_unlock+0x11d/0x230 [ 256.237249][ T6330] kobject_add_internal+0x5ba/0xcd0 [ 256.242468][ T6330] kobject_init_and_add+0x128/0x190 [ 256.247773][ T6330] ? lockdep_softirqs_off+0x430/0x430 [ 256.253262][ T6330] ? kobject_add+0x230/0x230 [ 256.257874][ T6330] ? __init_swait_queue_head+0xa4/0x140 [ 256.263525][ T6330] gfs2_sys_fs_add+0x24f/0x4b0 [ 256.268312][ T6330] ? gfs2_recover_set+0x240/0x240 [ 256.270761][ T6333] loop2: detected capacity change from 0 to 32768 [ 256.273360][ T6330] ? snprintf+0xe5/0x140 [ 256.284094][ T6330] ? __free_pages+0x95/0x1a0 [ 256.286340][ T6327] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 256.288693][ T6330] ? vscnprintf+0x80/0x80 [ 256.306909][ T6330] gfs2_fill_super+0x11ed/0x1ea0 [ 256.310669][ T6327] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 256.312801][ T6330] ? gfs2_reconfigure+0xd80/0xd80 [ 256.325440][ T6330] ? sb_set_blocksize+0xa5/0xe0 [ 256.330503][ T6330] get_tree_bdev+0x3e6/0x610 [ 256.335117][ T6330] ? gfs2_reconfigure+0xd80/0xd80 [ 256.340369][ T6330] gfs2_get_tree+0x4d/0x1e0 [ 256.344898][ T6330] vfs_get_tree+0x88/0x270 [ 256.349431][ T6330] do_new_mount+0x247/0xa40 [ 256.351579][ T6335] loop4: detected capacity change from 0 to 32768 [ 256.354123][ T6330] __se_sys_mount+0x2e3/0x3d0 [ 256.354150][ T6330] ? __x64_sys_mount+0xc0/0xc0 [ 256.354170][ T6330] ? lockdep_hardirqs_on+0x94/0x140 [ 256.354187][ T6330] ? __x64_sys_mount+0x1c/0xc0 [ 256.354204][ T6330] do_syscall_64+0x4c/0xa0 [ 256.354219][ T6330] ? clear_bhb_loop+0x30/0x80 [ 256.354236][ T6330] ? clear_bhb_loop+0x30/0x80 [ 256.354253][ T6330] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 256.354269][ T6330] RIP: 0033:0x7fb1ebe1134a [ 256.354286][ T6330] 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 [ 256.354299][ T6330] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 256.354317][ T6330] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 256.354329][ T6330] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 256.449888][ T6330] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 256.457852][ T6330] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 256.465995][ T6330] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 256.474256][ T6330] [ 256.481059][ T6330] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 256.495001][ T6330] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 256.527959][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 256.534060][ T6335] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 256.586901][ T6335] CPU: 0 PID: 6335 Comm: syz.4.327 Not tainted syzkaller #0 [ 256.594233][ T6335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 256.604467][ T6335] Call Trace: [ 256.607752][ T6335] [ 256.610681][ T6335] dump_stack_lvl+0x188/0x250 [ 256.615501][ T6335] ? show_regs_print_info+0x20/0x20 [ 256.620819][ T6335] ? load_image+0x410/0x410 [ 256.625355][ T6335] sysfs_create_dir_ns+0x26a/0x290 [ 256.630835][ T6335] ? sysfs_warn_dup+0xa0/0xa0 [ 256.635730][ T6335] ? do_raw_spin_unlock+0x11d/0x230 [ 256.640969][ T6335] kobject_add_internal+0x5ba/0xcd0 [ 256.646457][ T6335] kobject_init_and_add+0x128/0x190 [ 256.651695][ T6335] ? lockdep_softirqs_off+0x430/0x430 [ 256.657378][ T6335] ? kobject_add+0x230/0x230 [ 256.662118][ T6335] ? __init_swait_queue_head+0xa4/0x140 [ 256.667873][ T6335] gfs2_sys_fs_add+0x24f/0x4b0 [ 256.672680][ T6335] ? gfs2_recover_set+0x240/0x240 [ 256.677717][ T6335] ? snprintf+0xe5/0x140 [ 256.681968][ T6335] ? __free_pages+0x95/0x1a0 [ 256.686586][ T6335] ? vscnprintf+0x80/0x80 [ 256.691026][ T6335] gfs2_fill_super+0x11ed/0x1ea0 [ 256.696082][ T6335] ? gfs2_reconfigure+0xd80/0xd80 [ 256.701141][ T6335] ? sb_set_blocksize+0xa5/0xe0 [ 256.706030][ T6335] get_tree_bdev+0x3e6/0x610 [ 256.710655][ T6335] ? gfs2_reconfigure+0xd80/0xd80 [ 256.715689][ T6335] gfs2_get_tree+0x4d/0x1e0 [ 256.720198][ T6335] vfs_get_tree+0x88/0x270 [ 256.724618][ T6335] do_new_mount+0x247/0xa40 [ 256.729132][ T6335] __se_sys_mount+0x2e3/0x3d0 [ 256.733901][ T6335] ? __x64_sys_mount+0xc0/0xc0 [ 256.738856][ T6335] ? lockdep_hardirqs_on+0x94/0x140 [ 256.744159][ T6335] ? __x64_sys_mount+0x1c/0xc0 [ 256.749042][ T6335] do_syscall_64+0x4c/0xa0 [ 256.753473][ T6335] ? clear_bhb_loop+0x30/0x80 [ 256.758163][ T6335] ? clear_bhb_loop+0x30/0x80 [ 256.762936][ T6335] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 256.768944][ T6335] RIP: 0033:0x7f1f2704534a [ 256.773376][ T6335] 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 [ 256.792999][ T6335] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 256.801661][ T6335] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 256.809744][ T6335] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 256.817923][ T6335] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 256.825908][ T6335] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 256.834336][ T6335] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 256.842333][ T6335] [ 256.845354][ T6333] CPU: 1 PID: 6333 Comm: syz.2.328 Not tainted syzkaller #0 [ 256.852672][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 256.862743][ T6333] Call Trace: [ 256.866031][ T6333] [ 256.868977][ T6333] dump_stack_lvl+0x188/0x250 [ 256.873763][ T6333] ? show_regs_print_info+0x20/0x20 [ 256.878976][ T6333] ? load_image+0x410/0x410 [ 256.883510][ T6333] sysfs_create_dir_ns+0x26a/0x290 [ 256.888732][ T6333] ? sysfs_warn_dup+0xa0/0xa0 [ 256.893436][ T6333] ? do_raw_spin_unlock+0x11d/0x230 [ 256.898659][ T6333] kobject_add_internal+0x5ba/0xcd0 [ 256.903984][ T6333] kobject_init_and_add+0x128/0x190 [ 256.909191][ T6333] ? lockdep_softirqs_off+0x430/0x430 [ 256.914582][ T6333] ? kobject_add+0x230/0x230 [ 256.919273][ T6333] ? __init_swait_queue_head+0xa4/0x140 [ 256.924845][ T6333] gfs2_sys_fs_add+0x24f/0x4b0 [ 256.929795][ T6333] ? gfs2_recover_set+0x240/0x240 [ 256.934825][ T6333] ? snprintf+0xe5/0x140 [ 256.939068][ T6333] ? __free_pages+0x95/0x1a0 [ 256.943664][ T6333] ? vscnprintf+0x80/0x80 [ 256.948007][ T6333] gfs2_fill_super+0x11ed/0x1ea0 [ 256.952961][ T6333] ? gfs2_reconfigure+0xd80/0xd80 [ 256.958091][ T6333] ? sb_set_blocksize+0xa5/0xe0 [ 256.962953][ T6333] get_tree_bdev+0x3e6/0x610 [ 256.967551][ T6333] ? gfs2_reconfigure+0xd80/0xd80 [ 256.972672][ T6333] gfs2_get_tree+0x4d/0x1e0 [ 256.977181][ T6333] vfs_get_tree+0x88/0x270 [ 256.981606][ T6333] do_new_mount+0x247/0xa40 [ 256.986123][ T6333] __se_sys_mount+0x2e3/0x3d0 [ 256.990826][ T6333] ? __x64_sys_mount+0xc0/0xc0 [ 256.995686][ T6333] ? lockdep_hardirqs_on+0x94/0x140 [ 257.000896][ T6333] ? __x64_sys_mount+0x1c/0xc0 [ 257.005681][ T6333] do_syscall_64+0x4c/0xa0 [ 257.010116][ T6333] ? clear_bhb_loop+0x30/0x80 [ 257.014801][ T6333] ? clear_bhb_loop+0x30/0x80 [ 257.019489][ T6333] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 257.025395][ T6333] RIP: 0033:0x7fa3eeafe34a [ 257.029831][ T6333] 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 [ 257.049446][ T6333] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 257.057886][ T6333] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 257.065956][ T6333] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 257.073939][ T6333] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 257.081925][ T6333] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 257.089906][ T6333] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 257.097910][ T6333] [ 257.132635][ T6333] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 257.152869][ T6333] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 257.381159][ T6335] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 257.413472][ T6335] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 257.718785][ T6344] loop5: detected capacity change from 0 to 32768 [ 257.803278][ T6344] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 257.829162][ T6344] CPU: 0 PID: 6344 Comm: syz.5.330 Not tainted syzkaller #0 [ 257.836598][ T6344] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 257.846804][ T6344] Call Trace: [ 257.850187][ T6344] [ 257.853146][ T6344] dump_stack_lvl+0x188/0x250 [ 257.857874][ T6344] ? show_regs_print_info+0x20/0x20 [ 257.863115][ T6344] ? load_image+0x410/0x410 [ 257.867745][ T6344] sysfs_create_dir_ns+0x26a/0x290 [ 257.872995][ T6344] ? sysfs_warn_dup+0xa0/0xa0 [ 257.877885][ T6344] ? do_raw_spin_unlock+0x11d/0x230 [ 257.883305][ T6344] kobject_add_internal+0x5ba/0xcd0 [ 257.888561][ T6344] kobject_init_and_add+0x128/0x190 [ 257.893792][ T6344] ? lockdep_softirqs_off+0x430/0x430 [ 257.899671][ T6344] ? kobject_add+0x230/0x230 [ 257.900945][ T6342] loop1: detected capacity change from 0 to 32768 [ 257.904305][ T6344] ? __init_swait_queue_head+0xa4/0x140 [ 257.904348][ T6344] gfs2_sys_fs_add+0x24f/0x4b0 [ 257.904369][ T6344] ? gfs2_recover_set+0x240/0x240 [ 257.904385][ T6344] ? snprintf+0xe5/0x140 [ 257.904398][ T6344] ? __free_pages+0x95/0x1a0 [ 257.904418][ T6344] ? vscnprintf+0x80/0x80 [ 257.904438][ T6344] gfs2_fill_super+0x11ed/0x1ea0 [ 257.904467][ T6344] ? gfs2_reconfigure+0xd80/0xd80 [ 257.904497][ T6344] ? sb_set_blocksize+0xa5/0xe0 [ 257.904514][ T6344] get_tree_bdev+0x3e6/0x610 [ 257.961837][ T6344] ? gfs2_reconfigure+0xd80/0xd80 [ 257.966983][ T6344] gfs2_get_tree+0x4d/0x1e0 [ 257.971529][ T6344] vfs_get_tree+0x88/0x270 [ 257.975969][ T6344] do_new_mount+0x247/0xa40 [ 257.980504][ T6344] __se_sys_mount+0x2e3/0x3d0 [ 257.985236][ T6344] ? __x64_sys_mount+0xc0/0xc0 [ 257.990199][ T6344] ? lockdep_hardirqs_on+0x94/0x140 [ 257.995418][ T6344] ? __x64_sys_mount+0x1c/0xc0 [ 258.000194][ T6344] do_syscall_64+0x4c/0xa0 [ 258.004827][ T6344] ? clear_bhb_loop+0x30/0x80 [ 258.009700][ T6344] ? clear_bhb_loop+0x30/0x80 [ 258.014392][ T6344] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 258.020280][ T6344] RIP: 0033:0x7fb1ebe1134a [ 258.024686][ T6344] 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 [ 258.045858][ T6344] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 258.054428][ T6344] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 258.062496][ T6344] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 258.070463][ T6344] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 258.078500][ T6344] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 258.086491][ T6344] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 258.094468][ T6344] [ 258.313133][ T6342] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 258.343390][ T6342] CPU: 0 PID: 6342 Comm: syz.1.329 Not tainted syzkaller #0 [ 258.350826][ T6342] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 258.361373][ T6342] Call Trace: [ 258.364458][ T6344] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 258.364983][ T6342] [ 258.364992][ T6342] dump_stack_lvl+0x188/0x250 [ 258.387706][ T6342] ? show_regs_print_info+0x20/0x20 [ 258.390366][ T6344] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 258.393196][ T6342] ? load_image+0x410/0x410 [ 258.405224][ T6342] sysfs_create_dir_ns+0x26a/0x290 [ 258.410391][ T6342] ? sysfs_warn_dup+0xa0/0xa0 [ 258.415380][ T6342] ? do_raw_spin_unlock+0x11d/0x230 [ 258.421348][ T6342] kobject_add_internal+0x5ba/0xcd0 [ 258.426686][ T6342] kobject_init_and_add+0x128/0x190 [ 258.431923][ T6342] ? lockdep_softirqs_off+0x430/0x430 [ 258.437541][ T6342] ? kobject_add+0x230/0x230 [ 258.442556][ T6342] ? __init_swait_queue_head+0xa4/0x140 [ 258.448216][ T6342] gfs2_sys_fs_add+0x24f/0x4b0 [ 258.453083][ T6342] ? gfs2_recover_set+0x240/0x240 [ 258.458213][ T6342] ? snprintf+0xe5/0x140 [ 258.462471][ T6342] ? __free_pages+0x95/0x1a0 [ 258.467080][ T6342] ? vscnprintf+0x80/0x80 [ 258.471423][ T6342] gfs2_fill_super+0x11ed/0x1ea0 [ 258.476385][ T6342] ? gfs2_reconfigure+0xd80/0xd80 [ 258.481519][ T6342] ? sb_set_blocksize+0xa5/0xe0 [ 258.486383][ T6342] get_tree_bdev+0x3e6/0x610 [ 258.491186][ T6342] ? gfs2_reconfigure+0xd80/0xd80 [ 258.496306][ T6342] gfs2_get_tree+0x4d/0x1e0 [ 258.500862][ T6342] vfs_get_tree+0x88/0x270 [ 258.505294][ T6342] do_new_mount+0x247/0xa40 [ 258.509820][ T6342] __se_sys_mount+0x2e3/0x3d0 [ 258.514592][ T6342] ? __x64_sys_mount+0xc0/0xc0 [ 258.517752][ T6350] loop4: detected capacity change from 0 to 32768 [ 258.519364][ T6342] ? lockdep_hardirqs_on+0x94/0x140 [ 258.531159][ T6342] ? __x64_sys_mount+0x1c/0xc0 [ 258.535943][ T6342] do_syscall_64+0x4c/0xa0 [ 258.540462][ T6342] ? clear_bhb_loop+0x30/0x80 [ 258.542802][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 258.545188][ T6342] ? clear_bhb_loop+0x30/0x80 [ 258.545212][ T6342] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 258.545229][ T6342] RIP: 0033:0x7f298d04b34a [ 258.545246][ T6342] 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 [ 258.545260][ T6342] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 258.545279][ T6342] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 258.545291][ T6342] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 258.545301][ T6342] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 258.545311][ T6342] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 258.545321][ T6342] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 258.632446][ T6346] loop0: detected capacity change from 0 to 32768 [ 258.632920][ T6342] [ 258.650922][ T6350] CPU: 1 PID: 6350 Comm: syz.4.333 Not tainted syzkaller #0 [ 258.658513][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 258.668583][ T6350] Call Trace: [ 258.671873][ T6350] [ 258.674818][ T6350] dump_stack_lvl+0x188/0x250 [ 258.679508][ T6350] ? show_regs_print_info+0x20/0x20 [ 258.684728][ T6350] ? load_image+0x410/0x410 [ 258.689522][ T6350] sysfs_create_dir_ns+0x26a/0x290 [ 258.694742][ T6350] ? sysfs_warn_dup+0xa0/0xa0 [ 258.699695][ T6350] ? do_raw_spin_unlock+0x11d/0x230 [ 258.705010][ T6350] kobject_add_internal+0x5ba/0xcd0 [ 258.710415][ T6350] kobject_init_and_add+0x128/0x190 [ 258.715726][ T6350] ? lockdep_softirqs_off+0x430/0x430 [ 258.721154][ T6350] ? kobject_add+0x230/0x230 [ 258.725868][ T6350] ? __init_swait_queue_head+0xa4/0x140 [ 258.731519][ T6350] gfs2_sys_fs_add+0x24f/0x4b0 [ 258.736430][ T6350] ? gfs2_recover_set+0x240/0x240 [ 258.741470][ T6350] ? snprintf+0xe5/0x140 [ 258.745718][ T6350] ? __free_pages+0x95/0x1a0 [ 258.750345][ T6350] ? vscnprintf+0x80/0x80 [ 258.754687][ T6350] gfs2_fill_super+0x11ed/0x1ea0 [ 258.760082][ T6350] ? gfs2_reconfigure+0xd80/0xd80 [ 258.765147][ T6350] ? sb_set_blocksize+0xa5/0xe0 [ 258.770271][ T6350] get_tree_bdev+0x3e6/0x610 [ 258.775033][ T6350] ? gfs2_reconfigure+0xd80/0xd80 [ 258.780077][ T6350] gfs2_get_tree+0x4d/0x1e0 [ 258.784591][ T6350] vfs_get_tree+0x88/0x270 [ 258.789018][ T6350] do_new_mount+0x247/0xa40 [ 258.793547][ T6350] __se_sys_mount+0x2e3/0x3d0 [ 258.798241][ T6350] ? __x64_sys_mount+0xc0/0xc0 [ 258.803029][ T6350] ? lockdep_hardirqs_on+0x94/0x140 [ 258.808329][ T6350] ? __x64_sys_mount+0x1c/0xc0 [ 258.813137][ T6350] do_syscall_64+0x4c/0xa0 [ 258.817690][ T6350] ? clear_bhb_loop+0x30/0x80 [ 258.822391][ T6350] ? clear_bhb_loop+0x30/0x80 [ 258.824183][ T6348] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 258.827174][ T6350] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 258.841238][ T6350] RIP: 0033:0x7f1f2704534a [ 258.845691][ T6350] 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 [ 258.865313][ T6350] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 258.873735][ T6350] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 258.881714][ T6350] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 258.889781][ T6350] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 258.897774][ T6350] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 258.905752][ T6350] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 258.913743][ T6350] [ 258.917117][ T6348] CPU: 0 PID: 6348 Comm: syz.2.332 Not tainted syzkaller #0 [ 258.924414][ T6348] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 258.926497][ T6350] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 258.934478][ T6348] Call Trace: [ 258.934493][ T6348] [ 258.934502][ T6348] dump_stack_lvl+0x188/0x250 [ 258.934526][ T6348] ? show_regs_print_info+0x20/0x20 [ 258.934542][ T6348] ? load_image+0x410/0x410 [ 258.934566][ T6348] sysfs_create_dir_ns+0x26a/0x290 [ 258.934584][ T6348] ? sysfs_warn_dup+0xa0/0xa0 [ 258.934601][ T6348] ? do_raw_spin_unlock+0x11d/0x230 [ 258.948587][ T6350] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 258.951752][ T6348] kobject_add_internal+0x5ba/0xcd0 [ 258.956247][ T6342] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 258.959408][ T6348] kobject_init_and_add+0x128/0x190 [ 258.959433][ T6348] ? lockdep_softirqs_off+0x430/0x430 [ 258.959455][ T6348] ? kobject_add+0x230/0x230 [ 258.968366][ T6342] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 258.969201][ T6348] ? __init_swait_queue_head+0xa4/0x140 [ 259.040797][ T6348] gfs2_sys_fs_add+0x24f/0x4b0 [ 259.045901][ T6348] ? gfs2_recover_set+0x240/0x240 [ 259.051228][ T6348] ? snprintf+0xe5/0x140 [ 259.055778][ T6348] ? __free_pages+0x95/0x1a0 [ 259.060591][ T6348] ? vscnprintf+0x80/0x80 [ 259.065070][ T6348] gfs2_fill_super+0x11ed/0x1ea0 [ 259.070318][ T6348] ? gfs2_reconfigure+0xd80/0xd80 [ 259.075356][ T6348] ? sb_set_blocksize+0xa5/0xe0 [ 259.080471][ T6348] get_tree_bdev+0x3e6/0x610 [ 259.085253][ T6348] ? gfs2_reconfigure+0xd80/0xd80 [ 259.090420][ T6348] gfs2_get_tree+0x4d/0x1e0 [ 259.094958][ T6348] vfs_get_tree+0x88/0x270 [ 259.099594][ T6348] do_new_mount+0x247/0xa40 [ 259.104342][ T6348] __se_sys_mount+0x2e3/0x3d0 [ 259.109482][ T6348] ? __x64_sys_mount+0xc0/0xc0 [ 259.114380][ T6348] ? lockdep_hardirqs_on+0x94/0x140 [ 259.119706][ T6348] ? __x64_sys_mount+0x1c/0xc0 [ 259.124578][ T6348] do_syscall_64+0x4c/0xa0 [ 259.129254][ T6348] ? clear_bhb_loop+0x30/0x80 [ 259.134348][ T6348] ? clear_bhb_loop+0x30/0x80 [ 259.139331][ T6348] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 259.145684][ T6348] RIP: 0033:0x7fa3eeafe34a [ 259.150464][ T6348] 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 [ 259.170672][ T6348] RSP: 002b:00007fa3edd61e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 259.179100][ T6348] RAX: ffffffffffffffda RBX: 00007fa3edd61ee0 RCX: 00007fa3eeafe34a [ 259.187158][ T6348] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fa3edd61ea0 [ 259.195441][ T6348] RBP: 0000200000000140 R08: 00007fa3edd61ee0 R09: 0000000000000815 [ 259.203574][ T6348] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 259.212000][ T6348] R13: 00007fa3edd61ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 259.219990][ T6348] [ 259.233539][ T6348] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 259.249859][ T6348] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 259.262361][ T6346] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 259.344558][ T6346] CPU: 1 PID: 6346 Comm: syz.0.331 Not tainted syzkaller #0 [ 259.352014][ T6346] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 259.362094][ T6346] Call Trace: [ 259.365749][ T6346] [ 259.370266][ T6346] dump_stack_lvl+0x188/0x250 [ 259.375230][ T6346] ? show_regs_print_info+0x20/0x20 [ 259.380463][ T6346] ? load_image+0x410/0x410 [ 259.385303][ T6346] sysfs_create_dir_ns+0x26a/0x290 [ 259.390620][ T6346] ? sysfs_warn_dup+0xa0/0xa0 [ 259.395855][ T6346] ? do_raw_spin_unlock+0x11d/0x230 [ 259.401121][ T6346] kobject_add_internal+0x5ba/0xcd0 [ 259.406359][ T6346] kobject_init_and_add+0x128/0x190 [ 259.411588][ T6346] ? lockdep_softirqs_off+0x430/0x430 [ 259.417165][ T6346] ? kobject_add+0x230/0x230 [ 259.421792][ T6346] ? __init_swait_queue_head+0xa4/0x140 [ 259.427365][ T6346] gfs2_sys_fs_add+0x24f/0x4b0 [ 259.432181][ T6346] ? gfs2_recover_set+0x240/0x240 [ 259.437229][ T6346] ? snprintf+0xe5/0x140 [ 259.441615][ T6346] ? __free_pages+0x95/0x1a0 [ 259.446597][ T6346] ? vscnprintf+0x80/0x80 [ 259.451238][ T6346] gfs2_fill_super+0x11ed/0x1ea0 [ 259.456233][ T6346] ? gfs2_reconfigure+0xd80/0xd80 [ 259.461294][ T6346] ? sb_set_blocksize+0xa5/0xe0 [ 259.466165][ T6346] get_tree_bdev+0x3e6/0x610 [ 259.470799][ T6346] ? gfs2_reconfigure+0xd80/0xd80 [ 259.476020][ T6346] gfs2_get_tree+0x4d/0x1e0 [ 259.480548][ T6346] vfs_get_tree+0x88/0x270 [ 259.484981][ T6346] do_new_mount+0x247/0xa40 [ 259.489495][ T6346] __se_sys_mount+0x2e3/0x3d0 [ 259.494186][ T6346] ? __x64_sys_mount+0xc0/0xc0 [ 259.499060][ T6346] ? lockdep_hardirqs_on+0x94/0x140 [ 259.504285][ T6346] ? __x64_sys_mount+0x1c/0xc0 [ 259.509063][ T6346] do_syscall_64+0x4c/0xa0 [ 259.513490][ T6346] ? clear_bhb_loop+0x30/0x80 [ 259.518270][ T6346] ? clear_bhb_loop+0x30/0x80 [ 259.523066][ T6346] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 259.529153][ T6346] RIP: 0033:0x7f364914634a [ 259.533587][ T6346] 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 [ 259.553894][ T6346] RSP: 002b:00007f36483a9e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 259.562501][ T6346] RAX: ffffffffffffffda RBX: 00007f36483a9ee0 RCX: 00007f364914634a [ 259.570577][ T6346] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f36483a9ea0 [ 259.578560][ T6346] RBP: 0000200000000140 R08: 00007f36483a9ee0 R09: 0000000000000815 [ 259.586638][ T6346] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 2026/06/27 02:09:34 executed programs: 328 [ 259.594615][ T6346] R13: 00007f36483a9ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 259.602607][ T6346] [ 259.607949][ T27] INFO: task syz-executor:4874 blocked for more than 143 seconds. [ 259.643539][ T27] Not tainted syzkaller #0 [ 259.648672][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 259.733615][ T27] task:syz-executor state:D stack:22192 pid: 4874 ppid: 1 flags:0x00004004 [ 259.763456][ T27] Call Trace: [ 259.769684][ T27] [ 259.772669][ T27] __schedule+0x11c3/0x4350 [ 259.777698][ T6346] kobject_add_internal failed for „½%b­i’~N-SS“ with -EEXIST, don't try to register things with the same name in the same directory. [ 259.812769][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 259.840810][ T6346] gfs2: fsid=„½%b­i’~N-SS“: error -17 adding sysfs files [ 259.869161][ T27] ? preempt_schedule_thunk+0x16/0x18 [ 259.882372][ T27] ? _raw_spin_unlock_irqrestore+0x10d/0x120 [ 259.891813][ T27] ? _raw_spin_unlock+0x40/0x40 [ 259.900915][ T27] ? rcu_is_watching+0x11/0xa0 [ 259.908211][ T27] ? release_firmware_map_entry+0x190/0x190 [ 259.918943][ T27] schedule+0x11b/0x1e0 [ 259.923196][ T27] schedule_timeout+0x184/0x2d0 [ 259.930972][ T27] ? console_conditional_schedule+0x40/0x40 [ 259.941394][ T27] ? update_process_times+0x200/0x200 [ 259.969606][ T27] ? prepare_to_wait_event+0x42c/0x460 [ 259.975829][ T27] gfs2_gl_hash_clear+0x1b4/0x300 [ 259.980881][ T27] ? thaw_glock+0x150/0x150 [ 260.003376][ T27] ? gfs2_jindex_free+0x3d2/0x440 [ 260.008914][ T27] ? init_wait_entry+0xd0/0xd0 [ 260.024116][ T27] ? gfs2_setbit+0x5a0/0x5a0 [ 260.029039][ T27] ? gfs2_clear_rgrpd+0x68a/0x6b0 [ 260.049345][ T27] gfs2_put_super+0x754/0x7c0 [ 260.063282][ T27] ? gfs2_evict_inode+0x1340/0x1340 [ 260.078994][ T27] generic_shutdown_super+0x130/0x300 [ 260.091987][ T27] kill_block_super+0x7c/0xe0 [ 260.107169][ T27] deactivate_locked_super+0x93/0xf0 [ 260.112854][ T27] cleanup_mnt+0x426/0x4d0 [ 260.128131][ T27] task_work_run+0x125/0x1a0 [ 260.132797][ T27] exit_to_user_mode_loop+0x10f/0x130 [ 260.158580][ T27] exit_to_user_mode_prepare+0xee/0x180 [ 260.174721][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 260.180255][ T27] do_syscall_64+0x58/0xa0 [ 260.208683][ T27] ? clear_bhb_loop+0x30/0x80 [ 260.220182][ T27] ? clear_bhb_loop+0x30/0x80 [ 260.236291][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 260.256093][ T27] RIP: 0033:0x7f9409772317 [ 260.280172][ T27] RSP: 002b:00007ffc39ce02d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 260.309819][ T27] RAX: 0000000000000000 RBX: 00007f9409802e5b RCX: 00007f9409772317 [ 260.329942][ T27] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc39ce0390 [ 260.349250][ T27] RBP: 00007ffc39ce0390 R08: 00007ffc39ce1390 R09: 00000000ffffffff [ 260.372375][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc39ce1420 [ 260.403766][ T27] R13: 00007f9409802e5b R14: 0000000000017d6a R15: 00007ffc39ce1460 [ 260.428381][ T27] [ 260.442758][ T27] [ 260.442758][ T27] Showing all locks held in the system: [ 260.461170][ T27] 1 lock held by khungtaskd/27: [ 260.473315][ T6352] set_capacity_and_notify: 1 callbacks suppressed [ 260.473330][ T6352] loop5: detected capacity change from 0 to 32768 [ 260.487767][ T27] #0: ffffffff8c31ef20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 260.507787][ T27] 2 locks held by getty/3945: [ 260.512618][ T27] #0: ffff88802cd31098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 260.543505][ T27] #1: ffffc900025e62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x594/0x1a50 [ 260.563477][ T27] 1 lock held by syz-executor/4864: [ 260.579358][ T27] #0: ffff888147235468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa9/0xb50 [ 260.594288][ T6356] loop2: detected capacity change from 0 to 32768 [ 260.601382][ T27] 1 lock held by syz-executor/4874: [ 260.606711][ T27] #0: ffff88802c03a0e0 (&type->s_umount_key#54){++++}-{3:3}, at: deactivate_super+0xa0/0xd0 [ 260.612637][ T6354] loop1: detected capacity change from 0 to 32768 [ 260.617521][ T27] 1 lock held by udevd/5801: [ 260.628241][ T27] #0: ffff888020d89118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0x162/0xa50 [ 260.641074][ T27] 2 locks held by syz.5.334/6352: [ 260.646437][ T27] #0: ffff888020d89118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780 [ 260.656308][ T27] #1: ffff888020dd4468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0 [ 260.658411][ T6358] loop4: detected capacity change from 0 to 32768 [ 260.665638][ T27] 2 locks held by syz.1.335/6354: [ 260.665658][ T27] #0: ffff888020962118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780 [ 260.665707][ T27] #1: ffff888020d20468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0 [ 260.665751][ T27] 2 locks held by syz.2.336/6356: [ 260.665762][ T27] #0: ffff888020963d18 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf1/0x780 [ 260.665805][ T27] #1: ffff888020d23468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x4d/0x1f0 [ 260.665848][ T27] 3 locks held by syz.4.337/6358: [ 260.665925][ T27] [ 260.728786][ T27] ============================================= [ 260.728786][ T27] [ 260.750813][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 260.762492][ T6352] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 260.763738][ T6354] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 260.779021][ T6358] sysfs: cannot create duplicate filename '/fs/gfs2/„½%b­i’~N-SS“' [ 260.787655][ T6358] CPU: 1 PID: 6358 Comm: syz.4.337 Not tainted syzkaller #0 [ 260.794968][ T6358] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 260.805853][ T6358] Call Trace: [ 260.809180][ T6358] [ 260.812127][ T6358] dump_stack_lvl+0x188/0x250 [ 260.816906][ T6358] ? show_regs_print_info+0x20/0x20 [ 260.822108][ T6358] ? load_image+0x410/0x410 [ 260.826798][ T6358] sysfs_create_dir_ns+0x26a/0x290 [ 260.832017][ T6358] ? sysfs_warn_dup+0xa0/0xa0 [ 260.836952][ T6358] ? do_raw_spin_unlock+0x11d/0x230 [ 260.842288][ T6358] kobject_add_internal+0x5ba/0xcd0 [ 260.847584][ T6358] kobject_init_and_add+0x128/0x190 [ 260.852808][ T6358] ? lockdep_softirqs_off+0x430/0x430 [ 260.858365][ T6358] ? kobject_add+0x230/0x230 [ 260.863147][ T6358] ? __init_swait_queue_head+0xa4/0x140 [ 260.869703][ T6358] gfs2_sys_fs_add+0x24f/0x4b0 [ 260.875480][ T6358] ? gfs2_recover_set+0x240/0x240 [ 260.880780][ T6358] ? snprintf+0xe5/0x140 [ 260.885355][ T6358] ? __free_pages+0x95/0x1a0 [ 260.890576][ T6358] ? vscnprintf+0x80/0x80 [ 260.895534][ T6358] gfs2_fill_super+0x11ed/0x1ea0 [ 260.900633][ T6358] ? gfs2_reconfigure+0xd80/0xd80 [ 260.906481][ T6358] ? sb_set_blocksize+0xa5/0xe0 [ 260.912407][ T6358] get_tree_bdev+0x3e6/0x610 [ 260.917934][ T6358] ? gfs2_reconfigure+0xd80/0xd80 [ 260.923670][ T6358] gfs2_get_tree+0x4d/0x1e0 [ 260.930505][ T6358] vfs_get_tree+0x88/0x270 [ 260.936250][ T6358] do_new_mount+0x247/0xa40 [ 260.941958][ T6358] __se_sys_mount+0x2e3/0x3d0 [ 260.947357][ T6358] ? __x64_sys_mount+0xc0/0xc0 [ 260.952396][ T6358] ? lockdep_hardirqs_on+0x94/0x140 [ 260.957621][ T6358] ? __x64_sys_mount+0x1c/0xc0 [ 260.962487][ T6358] do_syscall_64+0x4c/0xa0 [ 260.966906][ T6358] ? clear_bhb_loop+0x30/0x80 [ 260.971590][ T6358] ? clear_bhb_loop+0x30/0x80 [ 260.976375][ T6358] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 260.982821][ T6358] RIP: 0033:0x7f1f2704534a [ 260.987243][ T6358] 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 [ 261.006869][ T6358] RSP: 002b:00007f1f262a8e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 261.015395][ T6358] RAX: ffffffffffffffda RBX: 00007f1f262a8ee0 RCX: 00007f1f2704534a [ 261.023371][ T6358] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f1f262a8ea0 [ 261.031512][ T6358] RBP: 0000200000000140 R08: 00007f1f262a8ee0 R09: 0000000000000815 [ 261.039505][ T6358] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 261.047580][ T6358] R13: 00007f1f262a8ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 261.055776][ T6358] [ 261.060999][ T6352] CPU: 1 PID: 6352 Comm: syz.5.334 Not tainted syzkaller #0 [ 261.068316][ T6352] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 261.078376][ T6352] Call Trace: [ 261.081651][ T6352] [ 261.084675][ T6352] dump_stack_lvl+0x188/0x250 [ 261.089369][ T6352] ? show_regs_print_info+0x20/0x20 [ 261.094668][ T6352] ? load_image+0x410/0x410 [ 261.099195][ T6352] sysfs_create_dir_ns+0x26a/0x290 [ 261.104325][ T6352] ? sysfs_warn_dup+0xa0/0xa0 [ 261.109182][ T6352] ? do_raw_spin_unlock+0x11d/0x230 [ 261.114400][ T6352] kobject_add_internal+0x5ba/0xcd0 [ 261.119615][ T6352] kobject_init_and_add+0x128/0x190 [ 261.124909][ T6352] ? lockdep_softirqs_off+0x430/0x430 [ 261.130300][ T6352] ? kobject_add+0x230/0x230 [ 261.134916][ T6352] ? __init_swait_queue_head+0xa4/0x140 [ 261.140821][ T6352] gfs2_sys_fs_add+0x24f/0x4b0 [ 261.145605][ T6352] ? gfs2_recover_set+0x240/0x240 [ 261.150639][ T6352] ? snprintf+0xe5/0x140 [ 261.154890][ T6352] ? __free_pages+0x95/0x1a0 [ 261.159483][ T6352] ? vscnprintf+0x80/0x80 [ 261.163955][ T6352] gfs2_fill_super+0x11ed/0x1ea0 [ 261.169005][ T6352] ? gfs2_reconfigure+0xd80/0xd80 [ 261.174579][ T6352] ? sb_set_blocksize+0xa5/0xe0 [ 261.179548][ T6352] get_tree_bdev+0x3e6/0x610 [ 261.184160][ T6352] ? gfs2_reconfigure+0xd80/0xd80 [ 261.189200][ T6352] gfs2_get_tree+0x4d/0x1e0 [ 261.193716][ T6352] vfs_get_tree+0x88/0x270 [ 261.198123][ T6352] do_new_mount+0x247/0xa40 [ 261.202650][ T6352] __se_sys_mount+0x2e3/0x3d0 [ 261.207324][ T6352] ? __x64_sys_mount+0xc0/0xc0 [ 261.212079][ T6352] ? lockdep_hardirqs_on+0x94/0x140 [ 261.217270][ T6352] ? __x64_sys_mount+0x1c/0xc0 [ 261.222033][ T6352] do_syscall_64+0x4c/0xa0 [ 261.226440][ T6352] ? clear_bhb_loop+0x30/0x80 [ 261.231206][ T6352] ? clear_bhb_loop+0x30/0x80 [ 261.235886][ T6352] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 261.241785][ T6352] RIP: 0033:0x7fb1ebe1134a [ 261.246208][ T6352] 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 [ 261.265903][ T6352] RSP: 002b:00007fb1eb074e58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 261.274315][ T6352] RAX: ffffffffffffffda RBX: 00007fb1eb074ee0 RCX: 00007fb1ebe1134a [ 261.282637][ T6352] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007fb1eb074ea0 [ 261.290617][ T6352] RBP: 0000200000000140 R08: 00007fb1eb074ee0 R09: 0000000000000815 [ 261.298605][ T6352] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 261.306691][ T6352] R13: 00007fb1eb074ea0 R14: 00000000000126e0 R15: 0000200000000080 [ 261.315068][ T6352] [ 261.318266][ T27] NMI backtrace for cpu 0 [ 261.322772][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 261.330072][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 261.340654][ T27] Call Trace: [ 261.344004][ T27] [ 261.347062][ T27] dump_stack_lvl+0x188/0x250 [ 261.351854][ T27] ? asm_sysvec_apic_timer_interrupt+0x16/0x20 [ 261.358174][ T27] ? show_regs_print_info+0x20/0x20 [ 261.363500][ T27] ? load_image+0x410/0x410 [ 261.368115][ T27] ? nmi_cpu_backtrace+0x1b2/0x3d0 [ 261.373248][ T27] nmi_cpu_backtrace+0x3a2/0x3d0 [ 261.378284][ T27] ? nmi_trigger_cpumask_backtrace+0x280/0x280 [ 261.384440][ T27] ? _printk+0xda/0x130 [ 261.388697][ T27] ? load_image+0x410/0x410 [ 261.393391][ T27] ? load_image+0x410/0x410 [ 261.397898][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 261.403984][ T27] nmi_trigger_cpumask_backtrace+0x163/0x280 [ 261.409985][ T27] watchdog+0xe1b/0xe60 [ 261.414345][ T27] kthread+0x42e/0x520 [ 261.418425][ T27] ? hungtask_pm_notify+0x40/0x40 [ 261.423453][ T27] ? kthread_blkcg+0xd0/0xd0 [ 261.428575][ T27] ret_from_fork+0x1f/0x30 [ 261.433103][ T27] [ 261.436684][ T6354] CPU: 1 PID: 6354 Comm: syz.1.335 Not tainted syzkaller #0 [ 261.436711][ T27] Sending NMI from CPU 0 to CPUs 1: [ 261.444074][ T6354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 261.444087][ T6354] Call Trace: [ 261.444094][ T6354] [ 261.444103][ T6354] dump_stack_lvl+0x188/0x250 [ 261.449307][ C1] NMI backtrace for cpu 1 [ 261.449322][ C1] CPU: 1 PID: 6354 Comm: syz.1.335 Not tainted syzkaller #0 [ 261.449338][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 261.449346][ C1] RIP: 0010:_prb_read_valid+0x73e/0x9a0 [ 261.449368][ C1] Code: 24 98 00 00 00 45 31 c0 e8 0f 0b 00 00 41 89 c7 41 8d 5f fe bf fd ff ff ff 89 de e8 dc 3d 18 00 83 fb fd 73 3f 4c 89 7c 24 20 <48> 8b 9c 24 98 00 00 00 48 89 df 4c 8b 7c 24 10 4c 89 fe e8 3a 3c [ 261.449381][ C1] RSP: 0018:ffffc9000617f020 EFLAGS: 00000017 [ 261.449394][ C1] RAX: ffffffff8160b824 RBX: 0000000000000000 RCX: ffff8880290abb80 [ 261.449405][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000fffffffd [ 261.449414][ C1] RBP: ffffc9000617f1c0 R08: ffffc9000617f127 R09: 1ffff92000c2fe24 [ 261.449425][ C1] R10: dffffc0000000000 R11: fffff52000c2fe25 R12: ffffffff8c237740 [ 261.449435][ C1] R13: ffffffff8c237760 R14: dffffc0000000000 R15: 0000000000000002 [ 261.449445][ C1] FS: 00007f298c2af6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 [ 261.449458][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 261.449468][ C1] CR2: 00007fa1254cf000 CR3: 000000001f1bc000 CR4: 00000000003506e0 [ 261.449481][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 261.449489][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 261.449498][ C1] Call Trace: [ 261.449505][ C1] [ 261.449518][ C1] ? prb_read_valid+0x60/0x60 [ 261.449532][ C1] ? down_trylock+0x4c/0xa0 [ 261.449547][ C1] ? verify_lock_unused+0x140/0x140 [ 261.449564][ C1] ? __rwlock_init+0x140/0x140 [ 261.449581][ C1] prb_read_valid+0x39/0x60 [ 261.449595][ C1] console_unlock+0x272/0x10f0 [ 261.449612][ C1] ? console_trylock_spinning+0x370/0x370 [ 261.449631][ C1] ? console_trylock_spinning+0x15c/0x370 [ 261.449647][ C1] ? read_lock_is_recursive+0x10/0x10 [ 261.449663][ C1] ? __rwlock_init+0x140/0x140 [ 261.449681][ C1] ? vprintk_emit+0x150/0x150 [ 261.449700][ C1] vprintk_emit+0xc0/0x150 [ 261.449714][ C1] _printk+0xda/0x130 [ 261.449729][ C1] ? dump_stack_lvl+0x188/0x250 [ 261.449743][ C1] ? load_image+0x410/0x410 [ 261.449759][ C1] ? wq_watchdog_touch+0xeb/0x170 [ 261.449773][ C1] ? dump_stack_lvl+0x188/0x250 [ 261.449786][ C1] ? dump_stack_lvl+0x188/0x250 [ 261.449799][ C1] __show_trace_log_lvl+0x44e/0x550 [ 261.449820][ C1] ? dump_stack_lvl+0x188/0x250 [ 261.449834][ C1] dump_stack_lvl+0x188/0x250 [ 261.449848][ C1] ? show_regs_print_info+0x20/0x20 [ 261.449861][ C1] ? load_image+0x410/0x410 [ 261.449879][ C1] sysfs_create_dir_ns+0x26a/0x290 [ 261.449895][ C1] ? sysfs_warn_dup+0xa0/0xa0 [ 261.449908][ C1] ? do_raw_spin_unlock+0x11d/0x230 [ 261.449923][ C1] kobject_add_internal+0x5ba/0xcd0 [ 261.449941][ C1] kobject_init_and_add+0x128/0x190 [ 261.449955][ C1] ? lockdep_softirqs_off+0x430/0x430 [ 261.449972][ C1] ? kobject_add+0x230/0x230 [ 261.449988][ C1] ? __init_swait_queue_head+0xa4/0x140 [ 261.450006][ C1] gfs2_sys_fs_add+0x24f/0x4b0 [ 261.450028][ C1] ? gfs2_recover_set+0x240/0x240 [ 261.450042][ C1] ? snprintf+0xe5/0x140 [ 261.450054][ C1] ? __free_pages+0x95/0x1a0 [ 261.450071][ C1] ? vscnprintf+0x80/0x80 [ 261.450088][ C1] gfs2_fill_super+0x11ed/0x1ea0 [ 261.450108][ C1] ? gfs2_reconfigure+0xd80/0xd80 [ 261.450129][ C1] ? sb_set_blocksize+0xa5/0xe0 [ 261.450144][ C1] get_tree_bdev+0x3e6/0x610 [ 261.450160][ C1] ? gfs2_reconfigure+0xd80/0xd80 [ 261.450175][ C1] gfs2_get_tree+0x4d/0x1e0 [ 261.450191][ C1] vfs_get_tree+0x88/0x270 [ 261.450207][ C1] do_new_mount+0x247/0xa40 [ 261.450225][ C1] __se_sys_mount+0x2e3/0x3d0 [ 261.450242][ C1] ? __x64_sys_mount+0xc0/0xc0 [ 261.450258][ C1] ? lockdep_hardirqs_on+0x94/0x140 [ 261.450273][ C1] ? __x64_sys_mount+0x1c/0xc0 [ 261.450288][ C1] do_syscall_64+0x4c/0xa0 [ 261.450302][ C1] ? clear_bhb_loop+0x30/0x80 [ 261.450316][ C1] ? clear_bhb_loop+0x30/0x80 [ 261.450330][ C1] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 261.450345][ C1] RIP: 0033:0x7f298d04b34a [ 261.450359][ C1] 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 [ 261.450371][ C1] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 261.450385][ C1] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 261.450395][ C1] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 261.450405][ C1] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 261.450415][ C1] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 261.450424][ C1] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 261.450441][ C1] [ 261.479457][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 261.483689][ T6354] ? show_regs_print_info+0x20/0x20 [ 261.958723][ T6354] ? load_image+0x410/0x410 [ 261.963278][ T6354] sysfs_create_dir_ns+0x26a/0x290 [ 261.968409][ T6354] ? sysfs_warn_dup+0xa0/0xa0 [ 261.973082][ T6354] ? do_raw_spin_unlock+0x11d/0x230 [ 261.978281][ T6354] kobject_add_internal+0x5ba/0xcd0 [ 261.983480][ T6354] kobject_init_and_add+0x128/0x190 [ 261.988671][ T6354] ? lockdep_softirqs_off+0x430/0x430 [ 261.994039][ T6354] ? kobject_add+0x230/0x230 [ 261.998622][ T6354] ? __init_swait_queue_head+0xa4/0x140 [ 262.004158][ T6354] gfs2_sys_fs_add+0x24f/0x4b0 [ 262.008914][ T6354] ? gfs2_recover_set+0x240/0x240 [ 262.014014][ T6354] ? snprintf+0xe5/0x140 [ 262.018243][ T6354] ? __free_pages+0x95/0x1a0 [ 262.022826][ T6354] ? vscnprintf+0x80/0x80 [ 262.027179][ T6354] gfs2_fill_super+0x11ed/0x1ea0 [ 262.032117][ T6354] ? gfs2_reconfigure+0xd80/0xd80 [ 262.037521][ T6354] ? sb_set_blocksize+0xa5/0xe0 [ 262.042380][ T6354] get_tree_bdev+0x3e6/0x610 [ 262.046989][ T6354] ? gfs2_reconfigure+0xd80/0xd80 [ 262.052064][ T6354] gfs2_get_tree+0x4d/0x1e0 [ 262.056759][ T6354] vfs_get_tree+0x88/0x270 [ 262.061473][ T6354] do_new_mount+0x247/0xa40 [ 262.066004][ T6354] __se_sys_mount+0x2e3/0x3d0 [ 262.070692][ T6354] ? __x64_sys_mount+0xc0/0xc0 [ 262.075515][ T6354] ? lockdep_hardirqs_on+0x94/0x140 [ 262.080871][ T6354] ? __x64_sys_mount+0x1c/0xc0 [ 262.085684][ T6354] do_syscall_64+0x4c/0xa0 [ 262.090183][ T6354] ? clear_bhb_loop+0x30/0x80 [ 262.094857][ T6354] ? clear_bhb_loop+0x30/0x80 [ 262.099527][ T6354] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 262.105453][ T6354] RIP: 0033:0x7f298d04b34a [ 262.109934][ T6354] 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 [ 262.129644][ T6354] RSP: 002b:00007f298c2aee58 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 262.138412][ T6354] RAX: ffffffffffffffda RBX: 00007f298c2aeee0 RCX: 00007f298d04b34a [ 262.146409][ T6354] RDX: 0000200000000140 RSI: 0000200000000040 RDI: 00007f298c2aeea0 [ 262.154395][ T6354] RBP: 0000200000000140 R08: 00007f298c2aeee0 R09: 0000000000000815 [ 262.162411][ T6354] R10: 0000000000000815 R11: 0000000000000246 R12: 0000200000000040 [ 262.170396][ T6354] R13: 00007f298c2aeea0 R14: 00000000000126e0 R15: 0000200000000080 [ 262.178563][ T6354] [ 262.181576][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 262.188792][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 262.198861][ T27] Call Trace: [ 262.202322][ T27] [ 262.205277][ T27] dump_stack_lvl+0x188/0x250 [ 262.210137][ T27] ? show_regs_print_info+0x20/0x20 [ 262.215332][ T27] ? load_image+0x410/0x410 [ 262.219841][ T27] panic+0x2f8/0x850 [ 262.223729][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 262.229365][ T27] ? bpf_jit_dump+0xd0/0xd0 [ 262.233864][ T27] ? __irq_work_queue_local+0x12c/0x190 [ 262.239507][ T27] ? nmi_trigger_cpumask_backtrace+0x260/0x280 [ 262.246410][ T27] watchdog+0xe5a/0xe60 [ 262.251043][ T27] kthread+0x42e/0x520 [ 262.256331][ T27] ? hungtask_pm_notify+0x40/0x40 [ 262.261402][ T27] ? kthread_blkcg+0xd0/0xd0 [ 262.266910][ T27] ret_from_fork+0x1f/0x30 [ 262.271797][ T27] [ 262.275257][ T27] Kernel Offset: disabled [ 262.279626][ T27] Rebooting in 86400 seconds..