path_mount+0x84/0x570 [ 194.038695][ T5377] __se_sys_mount+0x147/0x1b0 [ 194.038701][ T5377] do_syscall_64+0x8f/0x250 [ 194.038705][ T5377] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.038708][ T5377] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.038712][ T5377] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 194.038715][ T5377] RIP: 0033:0x7f91ef19038a [ 194.038719][ T5377] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 194.038721][ T5377] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 194.038725][ T5377] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 194.038727][ T5377] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 194.038729][ T5377] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 194.038730][ T5377] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 194.038732][ T5377] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 194.038740][ T5377] [ 194.038743][ T5377] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.252436][ T5377] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.368645][ T5381] loop4: detected capacity change from 0 to 32768 [ 194.376241][ T5381] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.383657][ T5381] CPU: 1 UID: 0 PID: 5381 Comm: syz.4.356 Not tainted syzkaller #0 PREEMPT(none) [ 194.383664][ T5381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 194.383666][ T5381] Call Trace: [ 194.383668][ T5381] [ 194.383670][ T5381] dump_stack_lvl+0xa2/0xf0 [ 194.383678][ T5381] sysfs_create_dir_ns+0xe8/0x130 [ 194.383683][ T5381] kobject_add_internal+0x17d/0x330 [ 194.383689][ T5381] kobject_init_and_add+0xb2/0x160 [ 194.383696][ T5381] gfs2_sys_fs_add+0xef/0x1e0 [ 194.383704][ T5381] gfs2_fill_super+0x774/0xac0 [ 194.383710][ T5381] ? __pfx_gfs2_fill_super+0x10/0x10 [ 194.383713][ T5381] get_tree_bdev_flags+0x13c/0x1c0 [ 194.383717][ T5381] gfs2_get_tree+0x20/0x90 [ 194.383721][ T5381] vfs_get_tree+0x29/0xb0 [ 194.383724][ T5381] do_new_mount+0x14d/0x360 [ 194.383727][ T5381] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.383730][ T5381] ? ns_capable+0x26/0x50 [ 194.383733][ T5381] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.383735][ T5381] ? path_mount+0x84/0x570 [ 194.383739][ T5381] __se_sys_mount+0x147/0x1b0 [ 194.383743][ T5381] do_syscall_64+0x8f/0x250 [ 194.383747][ T5381] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.383749][ T5381] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.383752][ T5381] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 194.383755][ T5381] RIP: 0033:0x7f91ef19038a [ 194.383758][ T5381] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 194.383760][ T5381] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 194.383763][ T5381] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 194.383765][ T5381] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 194.383766][ T5381] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 194.383767][ T5381] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 194.383769][ T5381] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 194.383775][ T5381] [ 194.383782][ T5381] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.597846][ T5381] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 194.715873][ T5385] loop4: detected capacity change from 0 to 32768 [ 194.724527][ T5385] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 194.731943][ T5385] CPU: 1 UID: 0 PID: 5385 Comm: syz.4.357 Not tainted syzkaller #0 PREEMPT(none) [ 194.731949][ T5385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 194.731952][ T5385] Call Trace: [ 194.731954][ T5385] [ 194.731956][ T5385] dump_stack_lvl+0xa2/0xf0 [ 194.731965][ T5385] sysfs_create_dir_ns+0xe8/0x130 [ 194.731971][ T5385] kobject_add_internal+0x17d/0x330 [ 194.731978][ T5385] kobject_init_and_add+0xb2/0x160 [ 194.731986][ T5385] gfs2_sys_fs_add+0xef/0x1e0 [ 194.731995][ T5385] gfs2_fill_super+0x774/0xac0 [ 194.732003][ T5385] ? __pfx_gfs2_fill_super+0x10/0x10 [ 194.732006][ T5385] get_tree_bdev_flags+0x13c/0x1c0 [ 194.732012][ T5385] gfs2_get_tree+0x20/0x90 [ 194.732016][ T5385] vfs_get_tree+0x29/0xb0 [ 194.732020][ T5385] do_new_mount+0x14d/0x360 [ 194.732024][ T5385] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.732027][ T5385] ? ns_capable+0x26/0x50 [ 194.732030][ T5385] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.732033][ T5385] ? path_mount+0x84/0x570 [ 194.732037][ T5385] __se_sys_mount+0x147/0x1b0 [ 194.732043][ T5385] do_syscall_64+0x8f/0x250 [ 194.732047][ T5385] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.732050][ T5385] ? srso_alias_return_thunk+0x5/0xfbef5 [ 194.732054][ T5385] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 194.732057][ T5385] RIP: 0033:0x7f91ef19038a [ 194.732061][ T5385] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 194.732064][ T5385] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 194.732067][ T5385] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 194.732069][ T5385] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 194.732071][ T5385] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 194.732072][ T5385] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 194.732074][ T5385] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 194.732082][ T5385] [ 194.732085][ T5385] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 194.946923][ T5385] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.063093][ T5389] loop4: detected capacity change from 0 to 32768 [ 195.070832][ T5389] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.078329][ T5389] CPU: 1 UID: 0 PID: 5389 Comm: syz.4.358 Not tainted syzkaller #0 PREEMPT(none) [ 195.078335][ T5389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.078337][ T5389] Call Trace: [ 195.078339][ T5389] [ 195.078341][ T5389] dump_stack_lvl+0xa2/0xf0 [ 195.078350][ T5389] sysfs_create_dir_ns+0xe8/0x130 [ 195.078356][ T5389] kobject_add_internal+0x17d/0x330 [ 195.078362][ T5389] kobject_init_and_add+0xb2/0x160 [ 195.078371][ T5389] gfs2_sys_fs_add+0xef/0x1e0 [ 195.078380][ T5389] gfs2_fill_super+0x774/0xac0 [ 195.078388][ T5389] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.078392][ T5389] get_tree_bdev_flags+0x13c/0x1c0 [ 195.078398][ T5389] gfs2_get_tree+0x20/0x90 [ 195.078402][ T5389] vfs_get_tree+0x29/0xb0 [ 195.078406][ T5389] do_new_mount+0x14d/0x360 [ 195.078410][ T5389] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.078413][ T5389] ? ns_capable+0x26/0x50 [ 195.078416][ T5389] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.078419][ T5389] ? path_mount+0x84/0x570 [ 195.078423][ T5389] __se_sys_mount+0x147/0x1b0 [ 195.078429][ T5389] do_syscall_64+0x8f/0x250 [ 195.078434][ T5389] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.078436][ T5389] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.078441][ T5389] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.078444][ T5389] RIP: 0033:0x7f91ef19038a [ 195.078448][ T5389] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 195.078451][ T5389] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.078455][ T5389] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 195.078457][ T5389] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 195.078459][ T5389] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 195.078460][ T5389] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 195.078462][ T5389] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 195.078470][ T5389] [ 195.078473][ T5389] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.292327][ T5389] gfs2: fsid=syz:syz: error -17 adding sysfs files 2025/09/30 20:10:13 executed programs: 344 [ 195.409244][ T5393] loop4: detected capacity change from 0 to 32768 [ 195.418143][ T5393] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.425557][ T5393] CPU: 1 UID: 0 PID: 5393 Comm: syz.4.359 Not tainted syzkaller #0 PREEMPT(none) [ 195.425563][ T5393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.425565][ T5393] Call Trace: [ 195.425568][ T5393] [ 195.425569][ T5393] dump_stack_lvl+0xa2/0xf0 [ 195.425578][ T5393] sysfs_create_dir_ns+0xe8/0x130 [ 195.425584][ T5393] kobject_add_internal+0x17d/0x330 [ 195.425591][ T5393] kobject_init_and_add+0xb2/0x160 [ 195.425599][ T5393] gfs2_sys_fs_add+0xef/0x1e0 [ 195.425609][ T5393] gfs2_fill_super+0x774/0xac0 [ 195.425617][ T5393] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.425620][ T5393] get_tree_bdev_flags+0x13c/0x1c0 [ 195.425626][ T5393] gfs2_get_tree+0x20/0x90 [ 195.425630][ T5393] vfs_get_tree+0x29/0xb0 [ 195.425634][ T5393] do_new_mount+0x14d/0x360 [ 195.425637][ T5393] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.425641][ T5393] ? ns_capable+0x26/0x50 [ 195.425644][ T5393] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.425647][ T5393] ? path_mount+0x84/0x570 [ 195.425651][ T5393] __se_sys_mount+0x147/0x1b0 [ 195.425657][ T5393] do_syscall_64+0x8f/0x250 [ 195.425661][ T5393] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.425663][ T5393] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.425667][ T5393] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.425671][ T5393] RIP: 0033:0x7f91ef19038a [ 195.425674][ T5393] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 195.425677][ T5393] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.425681][ T5393] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 195.425682][ T5393] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 195.425684][ T5393] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 195.425686][ T5393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 195.425687][ T5393] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 195.425696][ T5393] [ 195.425699][ T5393] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.639446][ T5393] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 195.757250][ T5397] loop4: detected capacity change from 0 to 32768 [ 195.766061][ T5397] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 195.773548][ T5397] CPU: 0 UID: 0 PID: 5397 Comm: syz.4.360 Not tainted syzkaller #0 PREEMPT(none) [ 195.773553][ T5397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 195.773555][ T5397] Call Trace: [ 195.773558][ T5397] [ 195.773560][ T5397] dump_stack_lvl+0xa2/0xf0 [ 195.773568][ T5397] sysfs_create_dir_ns+0xe8/0x130 [ 195.773574][ T5397] kobject_add_internal+0x17d/0x330 [ 195.773580][ T5397] kobject_init_and_add+0xb2/0x160 [ 195.773588][ T5397] gfs2_sys_fs_add+0xef/0x1e0 [ 195.773598][ T5397] gfs2_fill_super+0x774/0xac0 [ 195.773605][ T5397] ? __pfx_gfs2_fill_super+0x10/0x10 [ 195.773609][ T5397] get_tree_bdev_flags+0x13c/0x1c0 [ 195.773615][ T5397] gfs2_get_tree+0x20/0x90 [ 195.773619][ T5397] vfs_get_tree+0x29/0xb0 [ 195.773623][ T5397] do_new_mount+0x14d/0x360 [ 195.773626][ T5397] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.773630][ T5397] ? ns_capable+0x26/0x50 [ 195.773633][ T5397] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.773635][ T5397] ? path_mount+0x84/0x570 [ 195.773640][ T5397] __se_sys_mount+0x147/0x1b0 [ 195.773646][ T5397] do_syscall_64+0x8f/0x250 [ 195.773650][ T5397] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.773652][ T5397] ? srso_alias_return_thunk+0x5/0xfbef5 [ 195.773657][ T5397] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.773660][ T5397] RIP: 0033:0x7f91ef19038a [ 195.773664][ T5397] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 195.773667][ T5397] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 195.773670][ T5397] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 195.773672][ T5397] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 195.773674][ T5397] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 195.773675][ T5397] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 195.773677][ T5397] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 195.773685][ T5397] [ 195.773688][ T5397] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.987989][ T5397] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.105617][ T5401] loop4: detected capacity change from 0 to 32768 [ 196.114336][ T5401] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.121746][ T5401] CPU: 0 UID: 0 PID: 5401 Comm: syz.4.361 Not tainted syzkaller #0 PREEMPT(none) [ 196.121751][ T5401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 196.121753][ T5401] Call Trace: [ 196.121755][ T5401] [ 196.121757][ T5401] dump_stack_lvl+0xa2/0xf0 [ 196.121765][ T5401] sysfs_create_dir_ns+0xe8/0x130 [ 196.121771][ T5401] kobject_add_internal+0x17d/0x330 [ 196.121778][ T5401] kobject_init_and_add+0xb2/0x160 [ 196.121786][ T5401] gfs2_sys_fs_add+0xef/0x1e0 [ 196.121796][ T5401] gfs2_fill_super+0x774/0xac0 [ 196.121803][ T5401] ? __pfx_gfs2_fill_super+0x10/0x10 [ 196.121807][ T5401] get_tree_bdev_flags+0x13c/0x1c0 [ 196.121812][ T5401] gfs2_get_tree+0x20/0x90 [ 196.121817][ T5401] vfs_get_tree+0x29/0xb0 [ 196.121820][ T5401] do_new_mount+0x14d/0x360 [ 196.121824][ T5401] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.121827][ T5401] ? ns_capable+0x26/0x50 [ 196.121830][ T5401] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.121833][ T5401] ? path_mount+0x84/0x570 [ 196.121837][ T5401] __se_sys_mount+0x147/0x1b0 [ 196.121843][ T5401] do_syscall_64+0x8f/0x250 [ 196.121847][ T5401] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.121849][ T5401] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.121853][ T5401] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 196.121857][ T5401] RIP: 0033:0x7f91ef19038a [ 196.121860][ T5401] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 196.121863][ T5401] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 196.121867][ T5401] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 196.121868][ T5401] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 196.121870][ T5401] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 196.121872][ T5401] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 196.121873][ T5401] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 196.121882][ T5401] [ 196.121884][ T5401] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.337400][ T5401] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.453379][ T5405] loop4: detected capacity change from 0 to 32768 [ 196.460510][ T5405] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.467933][ T5405] CPU: 0 UID: 0 PID: 5405 Comm: syz.4.362 Not tainted syzkaller #0 PREEMPT(none) [ 196.467939][ T5405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 196.467941][ T5405] Call Trace: [ 196.467944][ T5405] [ 196.467946][ T5405] dump_stack_lvl+0xa2/0xf0 [ 196.467954][ T5405] sysfs_create_dir_ns+0xe8/0x130 [ 196.467961][ T5405] kobject_add_internal+0x17d/0x330 [ 196.467968][ T5405] kobject_init_and_add+0xb2/0x160 [ 196.467976][ T5405] gfs2_sys_fs_add+0xef/0x1e0 [ 196.467986][ T5405] gfs2_fill_super+0x774/0xac0 [ 196.467993][ T5405] ? __pfx_gfs2_fill_super+0x10/0x10 [ 196.467997][ T5405] get_tree_bdev_flags+0x13c/0x1c0 [ 196.468002][ T5405] gfs2_get_tree+0x20/0x90 [ 196.468007][ T5405] vfs_get_tree+0x29/0xb0 [ 196.468010][ T5405] do_new_mount+0x14d/0x360 [ 196.468014][ T5405] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.468018][ T5405] ? ns_capable+0x26/0x50 [ 196.468021][ T5405] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.468023][ T5405] ? path_mount+0x84/0x570 [ 196.468028][ T5405] __se_sys_mount+0x147/0x1b0 [ 196.468034][ T5405] do_syscall_64+0x8f/0x250 [ 196.468038][ T5405] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.468041][ T5405] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.468046][ T5405] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 196.468049][ T5405] RIP: 0033:0x7f91ef19038a [ 196.468053][ T5405] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 196.468056][ T5405] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 196.468059][ T5405] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 196.468061][ T5405] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 196.468063][ T5405] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 196.468064][ T5405] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 196.468066][ T5405] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 196.468074][ T5405] [ 196.468077][ T5405] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.682040][ T5405] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.802550][ T5409] loop4: detected capacity change from 0 to 32768 [ 196.810583][ T5409] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.817986][ T5409] CPU: 1 UID: 0 PID: 5409 Comm: syz.4.363 Not tainted syzkaller #0 PREEMPT(none) [ 196.817992][ T5409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 196.817994][ T5409] Call Trace: [ 196.817996][ T5409] [ 196.817998][ T5409] dump_stack_lvl+0xa2/0xf0 [ 196.818007][ T5409] sysfs_create_dir_ns+0xe8/0x130 [ 196.818013][ T5409] kobject_add_internal+0x17d/0x330 [ 196.818020][ T5409] kobject_init_and_add+0xb2/0x160 [ 196.818029][ T5409] gfs2_sys_fs_add+0xef/0x1e0 [ 196.818039][ T5409] gfs2_fill_super+0x774/0xac0 [ 196.818047][ T5409] ? __pfx_gfs2_fill_super+0x10/0x10 [ 196.818050][ T5409] get_tree_bdev_flags+0x13c/0x1c0 [ 196.818056][ T5409] gfs2_get_tree+0x20/0x90 [ 196.818060][ T5409] vfs_get_tree+0x29/0xb0 [ 196.818064][ T5409] do_new_mount+0x14d/0x360 [ 196.818068][ T5409] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.818072][ T5409] ? ns_capable+0x26/0x50 [ 196.818075][ T5409] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.818078][ T5409] ? path_mount+0x84/0x570 [ 196.818082][ T5409] __se_sys_mount+0x147/0x1b0 [ 196.818087][ T5409] do_syscall_64+0x8f/0x250 [ 196.818092][ T5409] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.818094][ T5409] ? srso_alias_return_thunk+0x5/0xfbef5 [ 196.818099][ T5409] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 196.818102][ T5409] RIP: 0033:0x7f91ef19038a [ 196.818106][ T5409] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 196.818109][ T5409] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 196.818113][ T5409] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 196.818115][ T5409] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 196.818116][ T5409] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 196.818118][ T5409] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 196.818119][ T5409] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 196.818128][ T5409] [ 196.818131][ T5409] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.032240][ T5409] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.147372][ T5413] loop4: detected capacity change from 0 to 32768 [ 197.155218][ T5413] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.162802][ T5413] CPU: 1 UID: 0 PID: 5413 Comm: syz.4.364 Not tainted syzkaller #0 PREEMPT(none) [ 197.162808][ T5413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 197.162809][ T5413] Call Trace: [ 197.162812][ T5413] [ 197.162814][ T5413] dump_stack_lvl+0xa2/0xf0 [ 197.162822][ T5413] sysfs_create_dir_ns+0xe8/0x130 [ 197.162828][ T5413] kobject_add_internal+0x17d/0x330 [ 197.162835][ T5413] kobject_init_and_add+0xb2/0x160 [ 197.162851][ T5413] gfs2_sys_fs_add+0xef/0x1e0 [ 197.162860][ T5413] gfs2_fill_super+0x774/0xac0 [ 197.162866][ T5413] ? __pfx_gfs2_fill_super+0x10/0x10 [ 197.162869][ T5413] get_tree_bdev_flags+0x13c/0x1c0 [ 197.162874][ T5413] gfs2_get_tree+0x20/0x90 [ 197.162877][ T5413] vfs_get_tree+0x29/0xb0 [ 197.162880][ T5413] do_new_mount+0x14d/0x360 [ 197.162884][ T5413] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.162887][ T5413] ? ns_capable+0x26/0x50 [ 197.162890][ T5413] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.162892][ T5413] ? path_mount+0x84/0x570 [ 197.162895][ T5413] __se_sys_mount+0x147/0x1b0 [ 197.162900][ T5413] do_syscall_64+0x8f/0x250 [ 197.162903][ T5413] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.162906][ T5413] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.162909][ T5413] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.162912][ T5413] RIP: 0033:0x7f91ef19038a [ 197.162915][ T5413] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 197.162917][ T5413] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 197.162921][ T5413] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 197.162922][ T5413] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 197.162923][ T5413] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 197.162925][ T5413] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 197.162926][ T5413] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 197.162932][ T5413] [ 197.162939][ T5413] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.383434][ T5413] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.501906][ T5417] loop4: detected capacity change from 0 to 32768 [ 197.509889][ T5417] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.517480][ T5417] CPU: 0 UID: 0 PID: 5417 Comm: syz.4.365 Not tainted syzkaller #0 PREEMPT(none) [ 197.517485][ T5417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 197.517487][ T5417] Call Trace: [ 197.517490][ T5417] [ 197.517492][ T5417] dump_stack_lvl+0xa2/0xf0 [ 197.517501][ T5417] sysfs_create_dir_ns+0xe8/0x130 [ 197.517507][ T5417] kobject_add_internal+0x17d/0x330 [ 197.517514][ T5417] kobject_init_and_add+0xb2/0x160 [ 197.517522][ T5417] gfs2_sys_fs_add+0xef/0x1e0 [ 197.517533][ T5417] gfs2_fill_super+0x774/0xac0 [ 197.517540][ T5417] ? __pfx_gfs2_fill_super+0x10/0x10 [ 197.517544][ T5417] get_tree_bdev_flags+0x13c/0x1c0 [ 197.517550][ T5417] gfs2_get_tree+0x20/0x90 [ 197.517554][ T5417] vfs_get_tree+0x29/0xb0 [ 197.517558][ T5417] do_new_mount+0x14d/0x360 [ 197.517562][ T5417] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.517565][ T5417] ? ns_capable+0x26/0x50 [ 197.517568][ T5417] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.517571][ T5417] ? path_mount+0x84/0x570 [ 197.517575][ T5417] __se_sys_mount+0x147/0x1b0 [ 197.517581][ T5417] do_syscall_64+0x8f/0x250 [ 197.517585][ T5417] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.517587][ T5417] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.517592][ T5417] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.517595][ T5417] RIP: 0033:0x7f91ef19038a [ 197.517599][ T5417] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 197.517602][ T5417] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 197.517606][ T5417] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 197.517608][ T5417] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 197.517610][ T5417] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 197.517611][ T5417] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 197.517613][ T5417] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 197.517621][ T5417] [ 197.517625][ T5417] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.731545][ T5417] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.848602][ T5421] loop4: detected capacity change from 0 to 32768 [ 197.857327][ T5421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.864735][ T5421] CPU: 1 UID: 0 PID: 5421 Comm: syz.4.366 Not tainted syzkaller #0 PREEMPT(none) [ 197.864740][ T5421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 197.864742][ T5421] Call Trace: [ 197.864745][ T5421] [ 197.864747][ T5421] dump_stack_lvl+0xa2/0xf0 [ 197.864755][ T5421] sysfs_create_dir_ns+0xe8/0x130 [ 197.864761][ T5421] kobject_add_internal+0x17d/0x330 [ 197.864768][ T5421] kobject_init_and_add+0xb2/0x160 [ 197.864775][ T5421] gfs2_sys_fs_add+0xef/0x1e0 [ 197.864784][ T5421] gfs2_fill_super+0x774/0xac0 [ 197.864791][ T5421] ? __pfx_gfs2_fill_super+0x10/0x10 [ 197.864795][ T5421] get_tree_bdev_flags+0x13c/0x1c0 [ 197.864800][ T5421] gfs2_get_tree+0x20/0x90 [ 197.864804][ T5421] vfs_get_tree+0x29/0xb0 [ 197.864808][ T5421] do_new_mount+0x14d/0x360 [ 197.864812][ T5421] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.864815][ T5421] ? ns_capable+0x26/0x50 [ 197.864818][ T5421] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.864820][ T5421] ? path_mount+0x84/0x570 [ 197.864825][ T5421] __se_sys_mount+0x147/0x1b0 [ 197.864831][ T5421] do_syscall_64+0x8f/0x250 [ 197.864834][ T5421] ? fpregs_restore_userregs+0x83/0xe0 [ 197.864838][ T5421] ? srso_alias_return_thunk+0x5/0xfbef5 [ 197.864843][ T5421] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.864846][ T5421] RIP: 0033:0x7f91ef19038a [ 197.864850][ T5421] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 197.864853][ T5421] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 197.864857][ T5421] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 197.864859][ T5421] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 197.864860][ T5421] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 197.864862][ T5421] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 197.864864][ T5421] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 197.864872][ T5421] [ 197.864875][ T5421] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.078604][ T5421] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.195743][ T5425] loop4: detected capacity change from 0 to 32768 [ 198.204817][ T5425] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.212329][ T5425] CPU: 1 UID: 0 PID: 5425 Comm: syz.4.367 Not tainted syzkaller #0 PREEMPT(none) [ 198.212335][ T5425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.212337][ T5425] Call Trace: [ 198.212340][ T5425] [ 198.212342][ T5425] dump_stack_lvl+0xa2/0xf0 [ 198.212351][ T5425] sysfs_create_dir_ns+0xe8/0x130 [ 198.212357][ T5425] kobject_add_internal+0x17d/0x330 [ 198.212364][ T5425] kobject_init_and_add+0xb2/0x160 [ 198.212372][ T5425] gfs2_sys_fs_add+0xef/0x1e0 [ 198.212382][ T5425] gfs2_fill_super+0x774/0xac0 [ 198.212389][ T5425] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.212393][ T5425] get_tree_bdev_flags+0x13c/0x1c0 [ 198.212399][ T5425] gfs2_get_tree+0x20/0x90 [ 198.212403][ T5425] vfs_get_tree+0x29/0xb0 [ 198.212407][ T5425] do_new_mount+0x14d/0x360 [ 198.212411][ T5425] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.212415][ T5425] ? ns_capable+0x26/0x50 [ 198.212418][ T5425] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.212421][ T5425] ? path_mount+0x84/0x570 [ 198.212425][ T5425] __se_sys_mount+0x147/0x1b0 [ 198.212431][ T5425] do_syscall_64+0x8f/0x250 [ 198.212435][ T5425] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.212438][ T5425] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.212442][ T5425] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.212445][ T5425] RIP: 0033:0x7f91ef19038a [ 198.212450][ T5425] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 198.212453][ T5425] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.212456][ T5425] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 198.212459][ T5425] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 198.212460][ T5425] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 198.212462][ T5425] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 198.212464][ T5425] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 198.212472][ T5425] [ 198.212475][ T5425] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.425766][ T5425] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.542215][ T5429] loop4: detected capacity change from 0 to 32768 [ 198.550217][ T5429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.557630][ T5429] CPU: 1 UID: 0 PID: 5429 Comm: syz.4.368 Not tainted syzkaller #0 PREEMPT(none) [ 198.557635][ T5429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.557636][ T5429] Call Trace: [ 198.557639][ T5429] [ 198.557641][ T5429] dump_stack_lvl+0xa2/0xf0 [ 198.557650][ T5429] sysfs_create_dir_ns+0xe8/0x130 [ 198.557655][ T5429] kobject_add_internal+0x17d/0x330 [ 198.557662][ T5429] kobject_init_and_add+0xb2/0x160 [ 198.557671][ T5429] gfs2_sys_fs_add+0xef/0x1e0 [ 198.557680][ T5429] gfs2_fill_super+0x774/0xac0 [ 198.557687][ T5429] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.557690][ T5429] get_tree_bdev_flags+0x13c/0x1c0 [ 198.557696][ T5429] gfs2_get_tree+0x20/0x90 [ 198.557701][ T5429] vfs_get_tree+0x29/0xb0 [ 198.557705][ T5429] do_new_mount+0x14d/0x360 [ 198.557710][ T5429] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.557713][ T5429] ? ns_capable+0x26/0x50 [ 198.557729][ T5429] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.557732][ T5429] ? path_mount+0x84/0x570 [ 198.557737][ T5429] __se_sys_mount+0x147/0x1b0 [ 198.557742][ T5429] do_syscall_64+0x8f/0x250 [ 198.557747][ T5429] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.557750][ T5429] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.557754][ T5429] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.557758][ T5429] RIP: 0033:0x7f91ef19038a [ 198.557767][ T5429] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 198.557770][ T5429] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.557774][ T5429] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 198.557776][ T5429] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 198.557778][ T5429] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 198.557779][ T5429] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 198.557781][ T5429] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 198.557789][ T5429] [ 198.557792][ T5429] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.771815][ T5429] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.890546][ T5433] loop4: detected capacity change from 0 to 32768 [ 198.899475][ T5433] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.906896][ T5433] CPU: 1 UID: 0 PID: 5433 Comm: syz.4.369 Not tainted syzkaller #0 PREEMPT(none) [ 198.906901][ T5433] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 198.906903][ T5433] Call Trace: [ 198.906905][ T5433] [ 198.906907][ T5433] dump_stack_lvl+0xa2/0xf0 [ 198.906914][ T5433] sysfs_create_dir_ns+0xe8/0x130 [ 198.906919][ T5433] kobject_add_internal+0x17d/0x330 [ 198.906925][ T5433] kobject_init_and_add+0xb2/0x160 [ 198.906932][ T5433] gfs2_sys_fs_add+0xef/0x1e0 [ 198.906940][ T5433] gfs2_fill_super+0x774/0xac0 [ 198.906946][ T5433] ? __pfx_gfs2_fill_super+0x10/0x10 [ 198.906949][ T5433] get_tree_bdev_flags+0x13c/0x1c0 [ 198.906954][ T5433] gfs2_get_tree+0x20/0x90 [ 198.906958][ T5433] vfs_get_tree+0x29/0xb0 [ 198.906961][ T5433] do_new_mount+0x14d/0x360 [ 198.906964][ T5433] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.906967][ T5433] ? ns_capable+0x26/0x50 [ 198.906970][ T5433] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.906972][ T5433] ? path_mount+0x84/0x570 [ 198.906976][ T5433] __se_sys_mount+0x147/0x1b0 [ 198.906980][ T5433] do_syscall_64+0x8f/0x250 [ 198.906984][ T5433] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.906986][ T5433] ? srso_alias_return_thunk+0x5/0xfbef5 [ 198.906990][ T5433] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 198.906992][ T5433] RIP: 0033:0x7f91ef19038a [ 198.906996][ T5433] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 198.906998][ T5433] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 198.907001][ T5433] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 198.907002][ T5433] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 198.907004][ T5433] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 198.907005][ T5433] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 198.907006][ T5433] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 198.907013][ T5433] [ 198.907019][ T5433] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.121264][ T5433] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.237128][ T5437] loop4: detected capacity change from 0 to 32768 [ 199.246026][ T5437] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.253429][ T5437] CPU: 1 UID: 0 PID: 5437 Comm: syz.4.370 Not tainted syzkaller #0 PREEMPT(none) [ 199.253433][ T5437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 199.253435][ T5437] Call Trace: [ 199.253438][ T5437] [ 199.253440][ T5437] dump_stack_lvl+0xa2/0xf0 [ 199.253451][ T5437] sysfs_create_dir_ns+0xe8/0x130 [ 199.253457][ T5437] kobject_add_internal+0x17d/0x330 [ 199.253464][ T5437] kobject_init_and_add+0xb2/0x160 [ 199.253472][ T5437] gfs2_sys_fs_add+0xef/0x1e0 [ 199.253483][ T5437] gfs2_fill_super+0x774/0xac0 [ 199.253491][ T5437] ? __pfx_gfs2_fill_super+0x10/0x10 [ 199.253494][ T5437] get_tree_bdev_flags+0x13c/0x1c0 [ 199.253500][ T5437] gfs2_get_tree+0x20/0x90 [ 199.253505][ T5437] vfs_get_tree+0x29/0xb0 [ 199.253509][ T5437] do_new_mount+0x14d/0x360 [ 199.253513][ T5437] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.253516][ T5437] ? ns_capable+0x26/0x50 [ 199.253520][ T5437] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.253522][ T5437] ? path_mount+0x84/0x570 [ 199.253527][ T5437] __se_sys_mount+0x147/0x1b0 [ 199.253533][ T5437] do_syscall_64+0x8f/0x250 [ 199.253537][ T5437] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.253540][ T5437] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.253544][ T5437] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 199.253547][ T5437] RIP: 0033:0x7f91ef19038a [ 199.253551][ T5437] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 199.253554][ T5437] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 199.253557][ T5437] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 199.253559][ T5437] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 199.253561][ T5437] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 199.253562][ T5437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 199.253564][ T5437] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 199.253572][ T5437] [ 199.253574][ T5437] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.467361][ T5437] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.585059][ T5441] loop4: detected capacity change from 0 to 32768 [ 199.593136][ T5441] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.600502][ T5441] CPU: 1 UID: 0 PID: 5441 Comm: syz.4.371 Not tainted syzkaller #0 PREEMPT(none) [ 199.600508][ T5441] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 199.600510][ T5441] Call Trace: [ 199.600512][ T5441] [ 199.600515][ T5441] dump_stack_lvl+0xa2/0xf0 [ 199.600523][ T5441] sysfs_create_dir_ns+0xe8/0x130 [ 199.600529][ T5441] kobject_add_internal+0x17d/0x330 [ 199.600537][ T5441] kobject_init_and_add+0xb2/0x160 [ 199.600545][ T5441] gfs2_sys_fs_add+0xef/0x1e0 [ 199.600556][ T5441] gfs2_fill_super+0x774/0xac0 [ 199.600563][ T5441] ? __pfx_gfs2_fill_super+0x10/0x10 [ 199.600567][ T5441] get_tree_bdev_flags+0x13c/0x1c0 [ 199.600573][ T5441] gfs2_get_tree+0x20/0x90 [ 199.600577][ T5441] vfs_get_tree+0x29/0xb0 [ 199.600581][ T5441] do_new_mount+0x14d/0x360 [ 199.600585][ T5441] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.600588][ T5441] ? ns_capable+0x26/0x50 [ 199.600591][ T5441] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.600593][ T5441] ? path_mount+0x84/0x570 [ 199.600598][ T5441] __se_sys_mount+0x147/0x1b0 [ 199.600604][ T5441] do_syscall_64+0x8f/0x250 [ 199.600608][ T5441] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.600610][ T5441] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.600615][ T5441] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 199.600618][ T5441] RIP: 0033:0x7f91ef19038a [ 199.600621][ T5441] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 199.600624][ T5441] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 199.600628][ T5441] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 199.600629][ T5441] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 199.600631][ T5441] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 199.600632][ T5441] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 199.600634][ T5441] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 199.600642][ T5441] [ 199.600645][ T5441] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.814684][ T5441] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.932767][ T5445] loop4: detected capacity change from 0 to 32768 [ 199.941534][ T5445] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.948961][ T5445] CPU: 1 UID: 0 PID: 5445 Comm: syz.4.372 Not tainted syzkaller #0 PREEMPT(none) [ 199.948966][ T5445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 199.948968][ T5445] Call Trace: [ 199.948971][ T5445] [ 199.948973][ T5445] dump_stack_lvl+0xa2/0xf0 [ 199.948981][ T5445] sysfs_create_dir_ns+0xe8/0x130 [ 199.948987][ T5445] kobject_add_internal+0x17d/0x330 [ 199.948994][ T5445] kobject_init_and_add+0xb2/0x160 [ 199.949002][ T5445] gfs2_sys_fs_add+0xef/0x1e0 [ 199.949012][ T5445] gfs2_fill_super+0x774/0xac0 [ 199.949019][ T5445] ? __pfx_gfs2_fill_super+0x10/0x10 [ 199.949023][ T5445] get_tree_bdev_flags+0x13c/0x1c0 [ 199.949028][ T5445] gfs2_get_tree+0x20/0x90 [ 199.949033][ T5445] vfs_get_tree+0x29/0xb0 [ 199.949036][ T5445] do_new_mount+0x14d/0x360 [ 199.949040][ T5445] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.949043][ T5445] ? ns_capable+0x26/0x50 [ 199.949047][ T5445] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.949049][ T5445] ? path_mount+0x84/0x570 [ 199.949054][ T5445] __se_sys_mount+0x147/0x1b0 [ 199.949059][ T5445] do_syscall_64+0x8f/0x250 [ 199.949063][ T5445] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.949065][ T5445] ? srso_alias_return_thunk+0x5/0xfbef5 [ 199.949070][ T5445] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 199.949073][ T5445] RIP: 0033:0x7f91ef19038a [ 199.949077][ T5445] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 199.949079][ T5445] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 199.949083][ T5445] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 199.949085][ T5445] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 199.949087][ T5445] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 199.949088][ T5445] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 199.949090][ T5445] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 199.949098][ T5445] [ 199.949101][ T5445] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.162486][ T5445] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.280244][ T5449] loop4: detected capacity change from 0 to 32768 [ 200.289152][ T5449] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.296562][ T5449] CPU: 1 UID: 0 PID: 5449 Comm: syz.4.373 Not tainted syzkaller #0 PREEMPT(none) [ 200.296567][ T5449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 200.296569][ T5449] Call Trace: [ 200.296572][ T5449] [ 200.296574][ T5449] dump_stack_lvl+0xa2/0xf0 [ 200.296582][ T5449] sysfs_create_dir_ns+0xe8/0x130 [ 200.296589][ T5449] kobject_add_internal+0x17d/0x330 [ 200.296596][ T5449] kobject_init_and_add+0xb2/0x160 [ 200.296604][ T5449] gfs2_sys_fs_add+0xef/0x1e0 [ 200.296613][ T5449] gfs2_fill_super+0x774/0xac0 [ 200.296620][ T5449] ? __pfx_gfs2_fill_super+0x10/0x10 [ 200.296623][ T5449] get_tree_bdev_flags+0x13c/0x1c0 [ 200.296629][ T5449] gfs2_get_tree+0x20/0x90 [ 200.296634][ T5449] vfs_get_tree+0x29/0xb0 [ 200.296638][ T5449] do_new_mount+0x14d/0x360 [ 200.296642][ T5449] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.296645][ T5449] ? ns_capable+0x26/0x50 [ 200.296649][ T5449] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.296651][ T5449] ? path_mount+0x84/0x570 [ 200.296655][ T5449] __se_sys_mount+0x147/0x1b0 [ 200.296661][ T5449] do_syscall_64+0x8f/0x250 [ 200.296666][ T5449] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.296669][ T5449] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.296673][ T5449] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 200.296676][ T5449] RIP: 0033:0x7f91ef19038a [ 200.296680][ T5449] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 200.296683][ T5449] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 200.296687][ T5449] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 200.296689][ T5449] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 200.296691][ T5449] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 200.296692][ T5449] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 200.296694][ T5449] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 200.296702][ T5449] [ 200.296705][ T5449] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.510707][ T5449] gfs2: fsid=syz:syz: error -17 adding sysfs files 2025/09/30 20:10:18 executed programs: 359 [ 200.629447][ T5453] loop4: detected capacity change from 0 to 32768 [ 200.638436][ T5453] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.645828][ T5453] CPU: 1 UID: 0 PID: 5453 Comm: syz.4.374 Not tainted syzkaller #0 PREEMPT(none) [ 200.645832][ T5453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 200.645834][ T5453] Call Trace: [ 200.645837][ T5453] [ 200.645839][ T5453] dump_stack_lvl+0xa2/0xf0 [ 200.645847][ T5453] sysfs_create_dir_ns+0xe8/0x130 [ 200.645853][ T5453] kobject_add_internal+0x17d/0x330 [ 200.645860][ T5453] kobject_init_and_add+0xb2/0x160 [ 200.645875][ T5453] gfs2_sys_fs_add+0xef/0x1e0 [ 200.645885][ T5453] gfs2_fill_super+0x774/0xac0 [ 200.645893][ T5453] ? __pfx_gfs2_fill_super+0x10/0x10 [ 200.645897][ T5453] get_tree_bdev_flags+0x13c/0x1c0 [ 200.645902][ T5453] gfs2_get_tree+0x20/0x90 [ 200.645907][ T5453] vfs_get_tree+0x29/0xb0 [ 200.645911][ T5453] do_new_mount+0x14d/0x360 [ 200.645915][ T5453] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.645919][ T5453] ? ns_capable+0x26/0x50 [ 200.645922][ T5453] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.645924][ T5453] ? path_mount+0x84/0x570 [ 200.645929][ T5453] __se_sys_mount+0x147/0x1b0 [ 200.645935][ T5453] do_syscall_64+0x8f/0x250 [ 200.645939][ T5453] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.645942][ T5453] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.645946][ T5453] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 200.645949][ T5453] RIP: 0033:0x7f91ef19038a [ 200.645953][ T5453] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 200.645956][ T5453] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 200.645959][ T5453] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 200.645961][ T5453] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 200.645962][ T5453] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 200.645964][ T5453] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 200.645965][ T5453] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 200.645973][ T5453] [ 200.645976][ T5453] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.859616][ T5453] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.975729][ T5457] loop4: detected capacity change from 0 to 32768 [ 200.984605][ T5457] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.992113][ T5457] CPU: 1 UID: 0 PID: 5457 Comm: syz.4.375 Not tainted syzkaller #0 PREEMPT(none) [ 200.992118][ T5457] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 200.992120][ T5457] Call Trace: [ 200.992123][ T5457] [ 200.992125][ T5457] dump_stack_lvl+0xa2/0xf0 [ 200.992133][ T5457] sysfs_create_dir_ns+0xe8/0x130 [ 200.992140][ T5457] kobject_add_internal+0x17d/0x330 [ 200.992147][ T5457] kobject_init_and_add+0xb2/0x160 [ 200.992155][ T5457] gfs2_sys_fs_add+0xef/0x1e0 [ 200.992165][ T5457] gfs2_fill_super+0x774/0xac0 [ 200.992173][ T5457] ? __pfx_gfs2_fill_super+0x10/0x10 [ 200.992176][ T5457] get_tree_bdev_flags+0x13c/0x1c0 [ 200.992182][ T5457] gfs2_get_tree+0x20/0x90 [ 200.992186][ T5457] vfs_get_tree+0x29/0xb0 [ 200.992190][ T5457] do_new_mount+0x14d/0x360 [ 200.992194][ T5457] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.992198][ T5457] ? ns_capable+0x26/0x50 [ 200.992201][ T5457] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.992204][ T5457] ? path_mount+0x84/0x570 [ 200.992208][ T5457] __se_sys_mount+0x147/0x1b0 [ 200.992214][ T5457] do_syscall_64+0x8f/0x250 [ 200.992218][ T5457] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.992220][ T5457] ? srso_alias_return_thunk+0x5/0xfbef5 [ 200.992225][ T5457] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 200.992228][ T5457] RIP: 0033:0x7f91ef19038a [ 200.992232][ T5457] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 200.992235][ T5457] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 200.992239][ T5457] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 200.992240][ T5457] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 200.992242][ T5457] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 200.992244][ T5457] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 200.992245][ T5457] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 200.992254][ T5457] [ 200.992258][ T5457] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.205710][ T5457] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.321632][ T5461] loop4: detected capacity change from 0 to 32768 [ 201.330538][ T5461] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.337938][ T5461] CPU: 0 UID: 0 PID: 5461 Comm: syz.4.376 Not tainted syzkaller #0 PREEMPT(none) [ 201.337943][ T5461] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 201.337945][ T5461] Call Trace: [ 201.337948][ T5461] [ 201.337950][ T5461] dump_stack_lvl+0xa2/0xf0 [ 201.337958][ T5461] sysfs_create_dir_ns+0xe8/0x130 [ 201.337964][ T5461] kobject_add_internal+0x17d/0x330 [ 201.337972][ T5461] kobject_init_and_add+0xb2/0x160 [ 201.337980][ T5461] gfs2_sys_fs_add+0xef/0x1e0 [ 201.337990][ T5461] gfs2_fill_super+0x774/0xac0 [ 201.337998][ T5461] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.338002][ T5461] get_tree_bdev_flags+0x13c/0x1c0 [ 201.338007][ T5461] gfs2_get_tree+0x20/0x90 [ 201.338012][ T5461] vfs_get_tree+0x29/0xb0 [ 201.338016][ T5461] do_new_mount+0x14d/0x360 [ 201.338020][ T5461] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.338023][ T5461] ? ns_capable+0x26/0x50 [ 201.338026][ T5461] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.338029][ T5461] ? path_mount+0x84/0x570 [ 201.338033][ T5461] __se_sys_mount+0x147/0x1b0 [ 201.338039][ T5461] do_syscall_64+0x8f/0x250 [ 201.338043][ T5461] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.338046][ T5461] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.338050][ T5461] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.338053][ T5461] RIP: 0033:0x7f91ef19038a [ 201.338057][ T5461] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 201.338060][ T5461] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 201.338064][ T5461] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 201.338066][ T5461] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 201.338067][ T5461] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 201.338069][ T5461] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 201.338071][ T5461] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 201.338079][ T5461] [ 201.338082][ T5461] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.551840][ T5461] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.666674][ T5465] loop4: detected capacity change from 0 to 32768 [ 201.675577][ T5465] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.682966][ T5465] CPU: 0 UID: 0 PID: 5465 Comm: syz.4.377 Not tainted syzkaller #0 PREEMPT(none) [ 201.682970][ T5465] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 201.682972][ T5465] Call Trace: [ 201.682975][ T5465] [ 201.682977][ T5465] dump_stack_lvl+0xa2/0xf0 [ 201.682984][ T5465] sysfs_create_dir_ns+0xe8/0x130 [ 201.682991][ T5465] kobject_add_internal+0x17d/0x330 [ 201.682998][ T5465] kobject_init_and_add+0xb2/0x160 [ 201.683006][ T5465] gfs2_sys_fs_add+0xef/0x1e0 [ 201.683016][ T5465] gfs2_fill_super+0x774/0xac0 [ 201.683024][ T5465] ? __pfx_gfs2_fill_super+0x10/0x10 [ 201.683027][ T5465] get_tree_bdev_flags+0x13c/0x1c0 [ 201.683033][ T5465] gfs2_get_tree+0x20/0x90 [ 201.683037][ T5465] vfs_get_tree+0x29/0xb0 [ 201.683041][ T5465] do_new_mount+0x14d/0x360 [ 201.683045][ T5465] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.683048][ T5465] ? ns_capable+0x26/0x50 [ 201.683051][ T5465] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.683054][ T5465] ? path_mount+0x84/0x570 [ 201.683058][ T5465] __se_sys_mount+0x147/0x1b0 [ 201.683064][ T5465] do_syscall_64+0x8f/0x250 [ 201.683068][ T5465] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.683070][ T5465] ? srso_alias_return_thunk+0x5/0xfbef5 [ 201.683075][ T5465] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 201.683078][ T5465] RIP: 0033:0x7f91ef19038a [ 201.683082][ T5465] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 201.683084][ T5465] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 201.683088][ T5465] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 201.683090][ T5465] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 201.683091][ T5465] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 201.683093][ T5465] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 201.683094][ T5465] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 201.683103][ T5465] [ 201.683105][ T5465] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.897606][ T5465] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.015137][ T5469] loop4: detected capacity change from 0 to 32768 [ 202.023065][ T5469] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.030885][ T5469] CPU: 0 UID: 0 PID: 5469 Comm: syz.4.378 Not tainted syzkaller #0 PREEMPT(none) [ 202.030890][ T5469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 202.030893][ T5469] Call Trace: [ 202.030895][ T5469] [ 202.030897][ T5469] dump_stack_lvl+0xa2/0xf0 [ 202.030905][ T5469] sysfs_create_dir_ns+0xe8/0x130 [ 202.030912][ T5469] kobject_add_internal+0x17d/0x330 [ 202.030919][ T5469] kobject_init_and_add+0xb2/0x160 [ 202.030927][ T5469] gfs2_sys_fs_add+0xef/0x1e0 [ 202.030937][ T5469] gfs2_fill_super+0x774/0xac0 [ 202.030944][ T5469] ? __pfx_gfs2_fill_super+0x10/0x10 [ 202.030948][ T5469] get_tree_bdev_flags+0x13c/0x1c0 [ 202.030954][ T5469] gfs2_get_tree+0x20/0x90 [ 202.030958][ T5469] vfs_get_tree+0x29/0xb0 [ 202.030962][ T5469] do_new_mount+0x14d/0x360 [ 202.030966][ T5469] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.030969][ T5469] ? ns_capable+0x26/0x50 [ 202.030973][ T5469] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.030975][ T5469] ? path_mount+0x84/0x570 [ 202.030980][ T5469] __se_sys_mount+0x147/0x1b0 [ 202.030985][ T5469] do_syscall_64+0x8f/0x250 [ 202.030989][ T5469] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.030992][ T5469] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.030996][ T5469] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 202.031000][ T5469] RIP: 0033:0x7f91ef19038a [ 202.031004][ T5469] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 202.031006][ T5469] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 202.031010][ T5469] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 202.031012][ T5469] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 202.031014][ T5469] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 202.031015][ T5469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 202.031017][ T5469] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 202.031025][ T5469] [ 202.031028][ T5469] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.244698][ T5469] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.361085][ T5473] loop4: detected capacity change from 0 to 32768 [ 202.370655][ T5473] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.378067][ T5473] CPU: 1 UID: 0 PID: 5473 Comm: syz.4.379 Not tainted syzkaller #0 PREEMPT(none) [ 202.378073][ T5473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 202.378075][ T5473] Call Trace: [ 202.378078][ T5473] [ 202.378080][ T5473] dump_stack_lvl+0xa2/0xf0 [ 202.378088][ T5473] sysfs_create_dir_ns+0xe8/0x130 [ 202.378095][ T5473] kobject_add_internal+0x17d/0x330 [ 202.378102][ T5473] kobject_init_and_add+0xb2/0x160 [ 202.378116][ T5473] gfs2_sys_fs_add+0xef/0x1e0 [ 202.378127][ T5473] gfs2_fill_super+0x774/0xac0 [ 202.378135][ T5473] ? __pfx_gfs2_fill_super+0x10/0x10 [ 202.378138][ T5473] get_tree_bdev_flags+0x13c/0x1c0 [ 202.378144][ T5473] gfs2_get_tree+0x20/0x90 [ 202.378148][ T5473] vfs_get_tree+0x29/0xb0 [ 202.378152][ T5473] do_new_mount+0x14d/0x360 [ 202.378157][ T5473] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.378160][ T5473] ? ns_capable+0x26/0x50 [ 202.378164][ T5473] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.378167][ T5473] ? path_mount+0x84/0x570 [ 202.378171][ T5473] __se_sys_mount+0x147/0x1b0 [ 202.378177][ T5473] do_syscall_64+0x8f/0x250 [ 202.378181][ T5473] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.378184][ T5473] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.378188][ T5473] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 202.378191][ T5473] RIP: 0033:0x7f91ef19038a [ 202.378195][ T5473] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 202.378198][ T5473] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 202.378202][ T5473] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 202.378203][ T5473] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 202.378205][ T5473] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 202.378207][ T5473] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 202.378208][ T5473] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 202.378216][ T5473] [ 202.378219][ T5473] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.593262][ T5473] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.708374][ T5477] loop4: detected capacity change from 0 to 32768 [ 202.717248][ T5477] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.724642][ T5477] CPU: 1 UID: 0 PID: 5477 Comm: syz.4.380 Not tainted syzkaller #0 PREEMPT(none) [ 202.724648][ T5477] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 202.724650][ T5477] Call Trace: [ 202.724653][ T5477] [ 202.724654][ T5477] dump_stack_lvl+0xa2/0xf0 [ 202.724662][ T5477] sysfs_create_dir_ns+0xe8/0x130 [ 202.724667][ T5477] kobject_add_internal+0x17d/0x330 [ 202.724673][ T5477] kobject_init_and_add+0xb2/0x160 [ 202.724680][ T5477] gfs2_sys_fs_add+0xef/0x1e0 [ 202.724689][ T5477] gfs2_fill_super+0x774/0xac0 [ 202.724695][ T5477] ? __pfx_gfs2_fill_super+0x10/0x10 [ 202.724697][ T5477] get_tree_bdev_flags+0x13c/0x1c0 [ 202.724702][ T5477] gfs2_get_tree+0x20/0x90 [ 202.724706][ T5477] vfs_get_tree+0x29/0xb0 [ 202.724709][ T5477] do_new_mount+0x14d/0x360 [ 202.724712][ T5477] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.724715][ T5477] ? ns_capable+0x26/0x50 [ 202.724718][ T5477] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.724720][ T5477] ? path_mount+0x84/0x570 [ 202.724723][ T5477] __se_sys_mount+0x147/0x1b0 [ 202.724728][ T5477] do_syscall_64+0x8f/0x250 [ 202.724731][ T5477] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.724734][ T5477] ? srso_alias_return_thunk+0x5/0xfbef5 [ 202.724737][ T5477] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 202.724740][ T5477] RIP: 0033:0x7f91ef19038a [ 202.724743][ T5477] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 202.724745][ T5477] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 202.724748][ T5477] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 202.724750][ T5477] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 202.724751][ T5477] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 202.724752][ T5477] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 202.724753][ T5477] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 202.724760][ T5477] [ 202.724766][ T5477] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.939052][ T5477] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.053994][ T5481] loop4: detected capacity change from 0 to 32768 [ 203.061872][ T5481] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.069228][ T5481] CPU: 1 UID: 0 PID: 5481 Comm: syz.4.381 Not tainted syzkaller #0 PREEMPT(none) [ 203.069232][ T5481] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 203.069234][ T5481] Call Trace: [ 203.069237][ T5481] [ 203.069239][ T5481] dump_stack_lvl+0xa2/0xf0 [ 203.069247][ T5481] sysfs_create_dir_ns+0xe8/0x130 [ 203.069253][ T5481] kobject_add_internal+0x17d/0x330 [ 203.069260][ T5481] kobject_init_and_add+0xb2/0x160 [ 203.069268][ T5481] gfs2_sys_fs_add+0xef/0x1e0 [ 203.069279][ T5481] gfs2_fill_super+0x774/0xac0 [ 203.069286][ T5481] ? __pfx_gfs2_fill_super+0x10/0x10 [ 203.069289][ T5481] get_tree_bdev_flags+0x13c/0x1c0 [ 203.069295][ T5481] gfs2_get_tree+0x20/0x90 [ 203.069300][ T5481] vfs_get_tree+0x29/0xb0 [ 203.069303][ T5481] do_new_mount+0x14d/0x360 [ 203.069307][ T5481] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.069310][ T5481] ? ns_capable+0x26/0x50 [ 203.069314][ T5481] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.069317][ T5481] ? path_mount+0x84/0x570 [ 203.069321][ T5481] __se_sys_mount+0x147/0x1b0 [ 203.069327][ T5481] do_syscall_64+0x8f/0x250 [ 203.069331][ T5481] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.069333][ T5481] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.069338][ T5481] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 203.069341][ T5481] RIP: 0033:0x7f91ef19038a [ 203.069344][ T5481] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 203.069347][ T5481] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 203.069351][ T5481] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 203.069353][ T5481] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 203.069354][ T5481] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 203.069356][ T5481] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 203.069358][ T5481] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 203.069366][ T5481] [ 203.069369][ T5481] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.282668][ T5481] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.398245][ T5485] loop4: detected capacity change from 0 to 32768 [ 203.406084][ T5485] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.413472][ T5485] CPU: 0 UID: 0 PID: 5485 Comm: syz.4.382 Not tainted syzkaller #0 PREEMPT(none) [ 203.413478][ T5485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 203.413480][ T5485] Call Trace: [ 203.413482][ T5485] [ 203.413484][ T5485] dump_stack_lvl+0xa2/0xf0 [ 203.413492][ T5485] sysfs_create_dir_ns+0xe8/0x130 [ 203.413498][ T5485] kobject_add_internal+0x17d/0x330 [ 203.413505][ T5485] kobject_init_and_add+0xb2/0x160 [ 203.413513][ T5485] gfs2_sys_fs_add+0xef/0x1e0 [ 203.413523][ T5485] gfs2_fill_super+0x774/0xac0 [ 203.413530][ T5485] ? __pfx_gfs2_fill_super+0x10/0x10 [ 203.413534][ T5485] get_tree_bdev_flags+0x13c/0x1c0 [ 203.413540][ T5485] gfs2_get_tree+0x20/0x90 [ 203.413545][ T5485] vfs_get_tree+0x29/0xb0 [ 203.413548][ T5485] do_new_mount+0x14d/0x360 [ 203.413552][ T5485] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.413555][ T5485] ? ns_capable+0x26/0x50 [ 203.413559][ T5485] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.413561][ T5485] ? path_mount+0x84/0x570 [ 203.413566][ T5485] __se_sys_mount+0x147/0x1b0 [ 203.413571][ T5485] do_syscall_64+0x8f/0x250 [ 203.413576][ T5485] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.413578][ T5485] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.413583][ T5485] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 203.413586][ T5485] RIP: 0033:0x7f91ef19038a [ 203.413590][ T5485] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 203.413592][ T5485] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 203.413596][ T5485] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 203.413598][ T5485] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 203.413599][ T5485] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 203.413601][ T5485] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 203.413603][ T5485] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 203.413611][ T5485] [ 203.413614][ T5485] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.628161][ T5485] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.746655][ T5489] loop4: detected capacity change from 0 to 32768 [ 203.755361][ T5489] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.762768][ T5489] CPU: 0 UID: 0 PID: 5489 Comm: syz.4.383 Not tainted syzkaller #0 PREEMPT(none) [ 203.762773][ T5489] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 203.762775][ T5489] Call Trace: [ 203.762778][ T5489] [ 203.762780][ T5489] dump_stack_lvl+0xa2/0xf0 [ 203.762787][ T5489] sysfs_create_dir_ns+0xe8/0x130 [ 203.762794][ T5489] kobject_add_internal+0x17d/0x330 [ 203.762801][ T5489] kobject_init_and_add+0xb2/0x160 [ 203.762809][ T5489] gfs2_sys_fs_add+0xef/0x1e0 [ 203.762819][ T5489] gfs2_fill_super+0x774/0xac0 [ 203.762826][ T5489] ? __pfx_gfs2_fill_super+0x10/0x10 [ 203.762829][ T5489] get_tree_bdev_flags+0x13c/0x1c0 [ 203.762835][ T5489] gfs2_get_tree+0x20/0x90 [ 203.762839][ T5489] vfs_get_tree+0x29/0xb0 [ 203.762843][ T5489] do_new_mount+0x14d/0x360 [ 203.762847][ T5489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.762850][ T5489] ? ns_capable+0x26/0x50 [ 203.762854][ T5489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.762856][ T5489] ? path_mount+0x84/0x570 [ 203.762861][ T5489] __se_sys_mount+0x147/0x1b0 [ 203.762866][ T5489] do_syscall_64+0x8f/0x250 [ 203.762871][ T5489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.762873][ T5489] ? srso_alias_return_thunk+0x5/0xfbef5 [ 203.762877][ T5489] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 203.762881][ T5489] RIP: 0033:0x7f91ef19038a [ 203.762885][ T5489] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 203.762887][ T5489] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 203.762891][ T5489] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 203.762893][ T5489] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 203.762895][ T5489] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 203.762896][ T5489] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 203.762898][ T5489] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 203.762906][ T5489] [ 203.762909][ T5489] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.976953][ T5489] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.094238][ T5493] loop4: detected capacity change from 0 to 32768 [ 204.103511][ T5493] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.110900][ T5493] CPU: 0 UID: 0 PID: 5493 Comm: syz.4.384 Not tainted syzkaller #0 PREEMPT(none) [ 204.110906][ T5493] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.110908][ T5493] Call Trace: [ 204.110910][ T5493] [ 204.110912][ T5493] dump_stack_lvl+0xa2/0xf0 [ 204.110921][ T5493] sysfs_create_dir_ns+0xe8/0x130 [ 204.110927][ T5493] kobject_add_internal+0x17d/0x330 [ 204.110934][ T5493] kobject_init_and_add+0xb2/0x160 [ 204.110942][ T5493] gfs2_sys_fs_add+0xef/0x1e0 [ 204.110953][ T5493] gfs2_fill_super+0x774/0xac0 [ 204.110960][ T5493] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.110963][ T5493] get_tree_bdev_flags+0x13c/0x1c0 [ 204.110969][ T5493] gfs2_get_tree+0x20/0x90 [ 204.110974][ T5493] vfs_get_tree+0x29/0xb0 [ 204.110978][ T5493] do_new_mount+0x14d/0x360 [ 204.110982][ T5493] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.110985][ T5493] ? ns_capable+0x26/0x50 [ 204.110989][ T5493] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.110991][ T5493] ? path_mount+0x84/0x570 [ 204.110996][ T5493] __se_sys_mount+0x147/0x1b0 [ 204.111002][ T5493] do_syscall_64+0x8f/0x250 [ 204.111006][ T5493] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.111008][ T5493] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.111012][ T5493] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.111016][ T5493] RIP: 0033:0x7f91ef19038a [ 204.111020][ T5493] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 204.111022][ T5493] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.111026][ T5493] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 204.111028][ T5493] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 204.111029][ T5493] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 204.111031][ T5493] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 204.111032][ T5493] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 204.111041][ T5493] [ 204.111044][ T5493] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.324967][ T5493] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.443508][ T5497] loop4: detected capacity change from 0 to 32768 [ 204.452390][ T5497] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.459750][ T5497] CPU: 1 UID: 0 PID: 5497 Comm: syz.4.385 Not tainted syzkaller #0 PREEMPT(none) [ 204.459755][ T5497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.459757][ T5497] Call Trace: [ 204.459760][ T5497] [ 204.459762][ T5497] dump_stack_lvl+0xa2/0xf0 [ 204.459769][ T5497] sysfs_create_dir_ns+0xe8/0x130 [ 204.459775][ T5497] kobject_add_internal+0x17d/0x330 [ 204.459782][ T5497] kobject_init_and_add+0xb2/0x160 [ 204.459791][ T5497] gfs2_sys_fs_add+0xef/0x1e0 [ 204.459801][ T5497] gfs2_fill_super+0x774/0xac0 [ 204.459808][ T5497] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.459811][ T5497] get_tree_bdev_flags+0x13c/0x1c0 [ 204.459817][ T5497] gfs2_get_tree+0x20/0x90 [ 204.459821][ T5497] vfs_get_tree+0x29/0xb0 [ 204.459825][ T5497] do_new_mount+0x14d/0x360 [ 204.459829][ T5497] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.459832][ T5497] ? ns_capable+0x26/0x50 [ 204.459835][ T5497] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.459837][ T5497] ? path_mount+0x84/0x570 [ 204.459842][ T5497] __se_sys_mount+0x147/0x1b0 [ 204.459847][ T5497] do_syscall_64+0x8f/0x250 [ 204.459851][ T5497] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.459854][ T5497] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.459858][ T5497] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.459861][ T5497] RIP: 0033:0x7f91ef19038a [ 204.459866][ T5497] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 204.459868][ T5497] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.459872][ T5497] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 204.459874][ T5497] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 204.459875][ T5497] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 204.459877][ T5497] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 204.459879][ T5497] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 204.459887][ T5497] [ 204.459889][ T5497] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.673688][ T5497] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.789315][ T5501] loop4: detected capacity change from 0 to 32768 [ 204.798259][ T5501] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.805743][ T5501] CPU: 1 UID: 0 PID: 5501 Comm: syz.4.386 Not tainted syzkaller #0 PREEMPT(none) [ 204.805748][ T5501] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 204.805750][ T5501] Call Trace: [ 204.805753][ T5501] [ 204.805755][ T5501] dump_stack_lvl+0xa2/0xf0 [ 204.805763][ T5501] sysfs_create_dir_ns+0xe8/0x130 [ 204.805769][ T5501] kobject_add_internal+0x17d/0x330 [ 204.805776][ T5501] kobject_init_and_add+0xb2/0x160 [ 204.805784][ T5501] gfs2_sys_fs_add+0xef/0x1e0 [ 204.805795][ T5501] gfs2_fill_super+0x774/0xac0 [ 204.805808][ T5501] ? __pfx_gfs2_fill_super+0x10/0x10 [ 204.805812][ T5501] get_tree_bdev_flags+0x13c/0x1c0 [ 204.805817][ T5501] gfs2_get_tree+0x20/0x90 [ 204.805822][ T5501] vfs_get_tree+0x29/0xb0 [ 204.805825][ T5501] do_new_mount+0x14d/0x360 [ 204.805829][ T5501] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.805833][ T5501] ? ns_capable+0x26/0x50 [ 204.805837][ T5501] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.805839][ T5501] ? path_mount+0x84/0x570 [ 204.805847][ T5501] __se_sys_mount+0x147/0x1b0 [ 204.805853][ T5501] do_syscall_64+0x8f/0x250 [ 204.805857][ T5501] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.805859][ T5501] ? srso_alias_return_thunk+0x5/0xfbef5 [ 204.805864][ T5501] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 204.805867][ T5501] RIP: 0033:0x7f91ef19038a [ 204.805871][ T5501] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 204.805874][ T5501] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 204.805877][ T5501] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 204.805879][ T5501] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 204.805881][ T5501] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 204.805882][ T5501] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 204.805884][ T5501] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 204.805892][ T5501] [ 204.805895][ T5501] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.019745][ T5501] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.135057][ T5505] loop4: detected capacity change from 0 to 32768 [ 205.142497][ T5505] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.149860][ T5505] CPU: 1 UID: 0 PID: 5505 Comm: syz.4.387 Not tainted syzkaller #0 PREEMPT(none) [ 205.149865][ T5505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 205.149867][ T5505] Call Trace: [ 205.149870][ T5505] [ 205.149872][ T5505] dump_stack_lvl+0xa2/0xf0 [ 205.149880][ T5505] sysfs_create_dir_ns+0xe8/0x130 [ 205.149886][ T5505] kobject_add_internal+0x17d/0x330 [ 205.149892][ T5505] kobject_init_and_add+0xb2/0x160 [ 205.149900][ T5505] gfs2_sys_fs_add+0xef/0x1e0 [ 205.149909][ T5505] gfs2_fill_super+0x774/0xac0 [ 205.149917][ T5505] ? __pfx_gfs2_fill_super+0x10/0x10 [ 205.149920][ T5505] get_tree_bdev_flags+0x13c/0x1c0 [ 205.149926][ T5505] gfs2_get_tree+0x20/0x90 [ 205.149930][ T5505] vfs_get_tree+0x29/0xb0 [ 205.149934][ T5505] do_new_mount+0x14d/0x360 [ 205.149938][ T5505] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.149941][ T5505] ? ns_capable+0x26/0x50 [ 205.149945][ T5505] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.149947][ T5505] ? path_mount+0x84/0x570 [ 205.149952][ T5505] __se_sys_mount+0x147/0x1b0 [ 205.149957][ T5505] do_syscall_64+0x8f/0x250 [ 205.149961][ T5505] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.149964][ T5505] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.149968][ T5505] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 205.149971][ T5505] RIP: 0033:0x7f91ef19038a [ 205.149975][ T5505] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 205.149978][ T5505] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 205.149982][ T5505] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 205.149983][ T5505] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 205.149985][ T5505] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 205.149986][ T5505] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 205.149988][ T5505] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 205.149995][ T5505] [ 205.149998][ T5505] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.363769][ T5505] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.480410][ T5509] loop4: detected capacity change from 0 to 32768 [ 205.489456][ T5509] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.496930][ T5509] CPU: 1 UID: 0 PID: 5509 Comm: syz.4.388 Not tainted syzkaller #0 PREEMPT(none) [ 205.496935][ T5509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 205.496937][ T5509] Call Trace: [ 205.496940][ T5509] [ 205.496942][ T5509] dump_stack_lvl+0xa2/0xf0 [ 205.496951][ T5509] sysfs_create_dir_ns+0xe8/0x130 [ 205.496957][ T5509] kobject_add_internal+0x17d/0x330 [ 205.496965][ T5509] kobject_init_and_add+0xb2/0x160 [ 205.496973][ T5509] gfs2_sys_fs_add+0xef/0x1e0 [ 205.496983][ T5509] gfs2_fill_super+0x774/0xac0 [ 205.496991][ T5509] ? __pfx_gfs2_fill_super+0x10/0x10 [ 205.496994][ T5509] get_tree_bdev_flags+0x13c/0x1c0 [ 205.497000][ T5509] gfs2_get_tree+0x20/0x90 [ 205.497004][ T5509] vfs_get_tree+0x29/0xb0 [ 205.497008][ T5509] do_new_mount+0x14d/0x360 [ 205.497012][ T5509] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.497015][ T5509] ? ns_capable+0x26/0x50 [ 205.497018][ T5509] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.497020][ T5509] ? path_mount+0x84/0x570 [ 205.497024][ T5509] __se_sys_mount+0x147/0x1b0 [ 205.497030][ T5509] do_syscall_64+0x8f/0x250 [ 205.497033][ T5509] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.497036][ T5509] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.497040][ T5509] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 205.497043][ T5509] RIP: 0033:0x7f91ef19038a [ 205.497047][ T5509] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 205.497049][ T5509] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 205.497053][ T5509] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 205.497054][ T5509] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 205.497056][ T5509] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 205.497058][ T5509] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 205.497059][ T5509] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 205.497066][ T5509] [ 205.497070][ T5509] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.710751][ T5509] gfs2: fsid=syz:syz: error -17 adding sysfs files 2025/09/30 20:10:23 executed programs: 374 [ 205.829374][ T5513] loop4: detected capacity change from 0 to 32768 [ 205.837599][ T5513] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.845012][ T5513] CPU: 0 UID: 0 PID: 5513 Comm: syz.4.389 Not tainted syzkaller #0 PREEMPT(none) [ 205.845017][ T5513] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 205.845019][ T5513] Call Trace: [ 205.845026][ T5513] [ 205.845028][ T5513] dump_stack_lvl+0xa2/0xf0 [ 205.845035][ T5513] sysfs_create_dir_ns+0xe8/0x130 [ 205.845042][ T5513] kobject_add_internal+0x17d/0x330 [ 205.845049][ T5513] kobject_init_and_add+0xb2/0x160 [ 205.845057][ T5513] gfs2_sys_fs_add+0xef/0x1e0 [ 205.845067][ T5513] gfs2_fill_super+0x774/0xac0 [ 205.845074][ T5513] ? __pfx_gfs2_fill_super+0x10/0x10 [ 205.845077][ T5513] get_tree_bdev_flags+0x13c/0x1c0 [ 205.845083][ T5513] gfs2_get_tree+0x20/0x90 [ 205.845087][ T5513] vfs_get_tree+0x29/0xb0 [ 205.845090][ T5513] do_new_mount+0x14d/0x360 [ 205.845094][ T5513] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.845097][ T5513] ? ns_capable+0x26/0x50 [ 205.845101][ T5513] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.845103][ T5513] ? path_mount+0x84/0x570 [ 205.845108][ T5513] __se_sys_mount+0x147/0x1b0 [ 205.845114][ T5513] do_syscall_64+0x8f/0x250 [ 205.845118][ T5513] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.845120][ T5513] ? srso_alias_return_thunk+0x5/0xfbef5 [ 205.845124][ T5513] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 205.845128][ T5513] RIP: 0033:0x7f91ef19038a [ 205.845132][ T5513] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 205.845134][ T5513] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 205.845138][ T5513] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 205.845140][ T5513] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 205.845142][ T5513] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 205.845143][ T5513] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 205.845145][ T5513] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 205.845153][ T5513] [ 205.845157][ T5513] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.058848][ T5513] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.173526][ T5517] loop4: detected capacity change from 0 to 32768 [ 206.181756][ T5517] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.189148][ T5517] CPU: 1 UID: 0 PID: 5517 Comm: syz.4.390 Not tainted syzkaller #0 PREEMPT(none) [ 206.189153][ T5517] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 206.189155][ T5517] Call Trace: [ 206.189157][ T5517] [ 206.189159][ T5517] dump_stack_lvl+0xa2/0xf0 [ 206.189167][ T5517] sysfs_create_dir_ns+0xe8/0x130 [ 206.189174][ T5517] kobject_add_internal+0x17d/0x330 [ 206.189180][ T5517] kobject_init_and_add+0xb2/0x160 [ 206.189189][ T5517] gfs2_sys_fs_add+0xef/0x1e0 [ 206.189198][ T5517] gfs2_fill_super+0x774/0xac0 [ 206.189206][ T5517] ? __pfx_gfs2_fill_super+0x10/0x10 [ 206.189209][ T5517] get_tree_bdev_flags+0x13c/0x1c0 [ 206.189216][ T5517] gfs2_get_tree+0x20/0x90 [ 206.189220][ T5517] vfs_get_tree+0x29/0xb0 [ 206.189224][ T5517] do_new_mount+0x14d/0x360 [ 206.189228][ T5517] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.189231][ T5517] ? ns_capable+0x26/0x50 [ 206.189234][ T5517] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.189237][ T5517] ? path_mount+0x84/0x570 [ 206.189241][ T5517] __se_sys_mount+0x147/0x1b0 [ 206.189247][ T5517] do_syscall_64+0x8f/0x250 [ 206.189252][ T5517] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.189254][ T5517] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.189258][ T5517] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 206.189262][ T5517] RIP: 0033:0x7f91ef19038a [ 206.189266][ T5517] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 206.189268][ T5517] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 206.189272][ T5517] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 206.189274][ T5517] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 206.189276][ T5517] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 206.189277][ T5517] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 206.189279][ T5517] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 206.189287][ T5517] [ 206.189290][ T5517] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.403464][ T5517] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.518574][ T5521] loop4: detected capacity change from 0 to 32768 [ 206.527298][ T5521] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.534785][ T5521] CPU: 1 UID: 0 PID: 5521 Comm: syz.4.391 Not tainted syzkaller #0 PREEMPT(none) [ 206.534790][ T5521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 206.534792][ T5521] Call Trace: [ 206.534794][ T5521] [ 206.534796][ T5521] dump_stack_lvl+0xa2/0xf0 [ 206.534804][ T5521] sysfs_create_dir_ns+0xe8/0x130 [ 206.534810][ T5521] kobject_add_internal+0x17d/0x330 [ 206.534817][ T5521] kobject_init_and_add+0xb2/0x160 [ 206.534826][ T5521] gfs2_sys_fs_add+0xef/0x1e0 [ 206.534836][ T5521] gfs2_fill_super+0x774/0xac0 [ 206.534843][ T5521] ? __pfx_gfs2_fill_super+0x10/0x10 [ 206.534846][ T5521] get_tree_bdev_flags+0x13c/0x1c0 [ 206.534852][ T5521] gfs2_get_tree+0x20/0x90 [ 206.534856][ T5521] vfs_get_tree+0x29/0xb0 [ 206.534860][ T5521] do_new_mount+0x14d/0x360 [ 206.534864][ T5521] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.534867][ T5521] ? ns_capable+0x26/0x50 [ 206.534871][ T5521] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.534873][ T5521] ? path_mount+0x84/0x570 [ 206.534877][ T5521] __se_sys_mount+0x147/0x1b0 [ 206.534883][ T5521] do_syscall_64+0x8f/0x250 [ 206.534887][ T5521] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.534889][ T5521] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.534894][ T5521] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 206.534897][ T5521] RIP: 0033:0x7f91ef19038a [ 206.534901][ T5521] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 206.534904][ T5521] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 206.534907][ T5521] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 206.534909][ T5521] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 206.534910][ T5521] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 206.534912][ T5521] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 206.534914][ T5521] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 206.534922][ T5521] [ 206.534925][ T5521] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.748893][ T5521] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.867068][ T5525] loop4: detected capacity change from 0 to 32768 [ 206.875646][ T5525] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.883070][ T5525] CPU: 1 UID: 0 PID: 5525 Comm: syz.4.392 Not tainted syzkaller #0 PREEMPT(none) [ 206.883076][ T5525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 206.883078][ T5525] Call Trace: [ 206.883081][ T5525] [ 206.883083][ T5525] dump_stack_lvl+0xa2/0xf0 [ 206.883091][ T5525] sysfs_create_dir_ns+0xe8/0x130 [ 206.883098][ T5525] kobject_add_internal+0x17d/0x330 [ 206.883104][ T5525] kobject_init_and_add+0xb2/0x160 [ 206.883112][ T5525] gfs2_sys_fs_add+0xef/0x1e0 [ 206.883122][ T5525] gfs2_fill_super+0x774/0xac0 [ 206.883130][ T5525] ? __pfx_gfs2_fill_super+0x10/0x10 [ 206.883133][ T5525] get_tree_bdev_flags+0x13c/0x1c0 [ 206.883139][ T5525] gfs2_get_tree+0x20/0x90 [ 206.883143][ T5525] vfs_get_tree+0x29/0xb0 [ 206.883147][ T5525] do_new_mount+0x14d/0x360 [ 206.883152][ T5525] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.883155][ T5525] ? ns_capable+0x26/0x50 [ 206.883158][ T5525] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.883161][ T5525] ? path_mount+0x84/0x570 [ 206.883165][ T5525] __se_sys_mount+0x147/0x1b0 [ 206.883171][ T5525] do_syscall_64+0x8f/0x250 [ 206.883175][ T5525] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.883178][ T5525] ? srso_alias_return_thunk+0x5/0xfbef5 [ 206.883182][ T5525] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 206.883185][ T5525] RIP: 0033:0x7f91ef19038a [ 206.883190][ T5525] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 206.883193][ T5525] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 206.883197][ T5525] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 206.883199][ T5525] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 206.883200][ T5525] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 206.883202][ T5525] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 206.883203][ T5525] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 206.883212][ T5525] [ 206.883215][ T5525] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.097026][ T5525] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.214052][ T5529] loop4: detected capacity change from 0 to 32768 [ 207.222417][ T5529] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.229825][ T5529] CPU: 0 UID: 0 PID: 5529 Comm: syz.4.393 Not tainted syzkaller #0 PREEMPT(none) [ 207.229830][ T5529] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.229832][ T5529] Call Trace: [ 207.229835][ T5529] [ 207.229837][ T5529] dump_stack_lvl+0xa2/0xf0 [ 207.229845][ T5529] sysfs_create_dir_ns+0xe8/0x130 [ 207.229852][ T5529] kobject_add_internal+0x17d/0x330 [ 207.229859][ T5529] kobject_init_and_add+0xb2/0x160 [ 207.229867][ T5529] gfs2_sys_fs_add+0xef/0x1e0 [ 207.229877][ T5529] gfs2_fill_super+0x774/0xac0 [ 207.229884][ T5529] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.229888][ T5529] get_tree_bdev_flags+0x13c/0x1c0 [ 207.229894][ T5529] gfs2_get_tree+0x20/0x90 [ 207.229898][ T5529] vfs_get_tree+0x29/0xb0 [ 207.229902][ T5529] do_new_mount+0x14d/0x360 [ 207.229906][ T5529] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.229910][ T5529] ? ns_capable+0x26/0x50 [ 207.229913][ T5529] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.229915][ T5529] ? path_mount+0x84/0x570 [ 207.229919][ T5529] __se_sys_mount+0x147/0x1b0 [ 207.229925][ T5529] do_syscall_64+0x8f/0x250 [ 207.229929][ T5529] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.229931][ T5529] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.229936][ T5529] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.229939][ T5529] RIP: 0033:0x7f91ef19038a [ 207.229944][ T5529] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 207.229947][ T5529] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 207.229950][ T5529] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 207.229952][ T5529] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 207.229954][ T5529] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 207.229956][ T5529] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 207.229957][ T5529] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 207.229965][ T5529] [ 207.229969][ T5529] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.443588][ T5529] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.558806][ T5533] loop4: detected capacity change from 0 to 32768 [ 207.565951][ T5533] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.573329][ T5533] CPU: 1 UID: 0 PID: 5533 Comm: syz.4.394 Not tainted syzkaller #0 PREEMPT(none) [ 207.573334][ T5533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.573337][ T5533] Call Trace: [ 207.573340][ T5533] [ 207.573342][ T5533] dump_stack_lvl+0xa2/0xf0 [ 207.573349][ T5533] sysfs_create_dir_ns+0xe8/0x130 [ 207.573356][ T5533] kobject_add_internal+0x17d/0x330 [ 207.573363][ T5533] kobject_init_and_add+0xb2/0x160 [ 207.573372][ T5533] gfs2_sys_fs_add+0xef/0x1e0 [ 207.573382][ T5533] gfs2_fill_super+0x774/0xac0 [ 207.573389][ T5533] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.573393][ T5533] get_tree_bdev_flags+0x13c/0x1c0 [ 207.573398][ T5533] gfs2_get_tree+0x20/0x90 [ 207.573403][ T5533] vfs_get_tree+0x29/0xb0 [ 207.573407][ T5533] do_new_mount+0x14d/0x360 [ 207.573411][ T5533] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.573414][ T5533] ? ns_capable+0x26/0x50 [ 207.573417][ T5533] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.573420][ T5533] ? path_mount+0x84/0x570 [ 207.573424][ T5533] __se_sys_mount+0x147/0x1b0 [ 207.573430][ T5533] do_syscall_64+0x8f/0x250 [ 207.573434][ T5533] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.573437][ T5533] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.573441][ T5533] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.573444][ T5533] RIP: 0033:0x7f91ef19038a [ 207.573448][ T5533] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 207.573451][ T5533] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 207.573455][ T5533] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 207.573457][ T5533] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 207.573458][ T5533] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 207.573460][ T5533] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 207.573462][ T5533] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 207.573470][ T5533] [ 207.573474][ T5533] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.787081][ T5533] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.902483][ T5537] loop4: detected capacity change from 0 to 32768 [ 207.911135][ T5537] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.918532][ T5537] CPU: 1 UID: 0 PID: 5537 Comm: syz.4.395 Not tainted syzkaller #0 PREEMPT(none) [ 207.918537][ T5537] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 207.918539][ T5537] Call Trace: [ 207.918542][ T5537] [ 207.918544][ T5537] dump_stack_lvl+0xa2/0xf0 [ 207.918552][ T5537] sysfs_create_dir_ns+0xe8/0x130 [ 207.918559][ T5537] kobject_add_internal+0x17d/0x330 [ 207.918565][ T5537] kobject_init_and_add+0xb2/0x160 [ 207.918574][ T5537] gfs2_sys_fs_add+0xef/0x1e0 [ 207.918584][ T5537] gfs2_fill_super+0x774/0xac0 [ 207.918592][ T5537] ? __pfx_gfs2_fill_super+0x10/0x10 [ 207.918595][ T5537] get_tree_bdev_flags+0x13c/0x1c0 [ 207.918601][ T5537] gfs2_get_tree+0x20/0x90 [ 207.918605][ T5537] vfs_get_tree+0x29/0xb0 [ 207.918609][ T5537] do_new_mount+0x14d/0x360 [ 207.918613][ T5537] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.918617][ T5537] ? ns_capable+0x26/0x50 [ 207.918620][ T5537] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.918622][ T5537] ? path_mount+0x84/0x570 [ 207.918627][ T5537] __se_sys_mount+0x147/0x1b0 [ 207.918633][ T5537] do_syscall_64+0x8f/0x250 [ 207.918637][ T5537] ? fpregs_restore_userregs+0x83/0xe0 [ 207.918640][ T5537] ? srso_alias_return_thunk+0x5/0xfbef5 [ 207.918645][ T5537] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 207.918648][ T5537] RIP: 0033:0x7f91ef19038a [ 207.918651][ T5537] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 207.918654][ T5537] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 207.918658][ T5537] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 207.918660][ T5537] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 207.918662][ T5537] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 207.918663][ T5537] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 207.918665][ T5537] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 207.918673][ T5537] [ 207.918676][ T5537] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.131477][ T5537] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.249328][ T5541] loop4: detected capacity change from 0 to 32768 [ 208.257958][ T5541] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.265455][ T5541] CPU: 1 UID: 0 PID: 5541 Comm: syz.4.396 Not tainted syzkaller #0 PREEMPT(none) [ 208.265461][ T5541] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 208.265463][ T5541] Call Trace: [ 208.265466][ T5541] [ 208.265468][ T5541] dump_stack_lvl+0xa2/0xf0 [ 208.265477][ T5541] sysfs_create_dir_ns+0xe8/0x130 [ 208.265483][ T5541] kobject_add_internal+0x17d/0x330 [ 208.265490][ T5541] kobject_init_and_add+0xb2/0x160 [ 208.265499][ T5541] gfs2_sys_fs_add+0xef/0x1e0 [ 208.265509][ T5541] gfs2_fill_super+0x774/0xac0 [ 208.265517][ T5541] ? __pfx_gfs2_fill_super+0x10/0x10 [ 208.265520][ T5541] get_tree_bdev_flags+0x13c/0x1c0 [ 208.265526][ T5541] gfs2_get_tree+0x20/0x90 [ 208.265530][ T5541] vfs_get_tree+0x29/0xb0 [ 208.265534][ T5541] do_new_mount+0x14d/0x360 [ 208.265539][ T5541] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.265542][ T5541] ? ns_capable+0x26/0x50 [ 208.265545][ T5541] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.265547][ T5541] ? path_mount+0x84/0x570 [ 208.265552][ T5541] __se_sys_mount+0x147/0x1b0 [ 208.265558][ T5541] do_syscall_64+0x8f/0x250 [ 208.265562][ T5541] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.265564][ T5541] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.265568][ T5541] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.265572][ T5541] RIP: 0033:0x7f91ef19038a [ 208.265576][ T5541] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 208.265579][ T5541] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 208.265582][ T5541] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 208.265584][ T5541] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 208.265586][ T5541] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 208.265587][ T5541] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 208.265589][ T5541] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 208.265598][ T5541] [ 208.265601][ T5541] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.481013][ T5541] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.598447][ T5545] loop4: detected capacity change from 0 to 32768 [ 208.607238][ T5545] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.614635][ T5545] CPU: 0 UID: 0 PID: 5545 Comm: syz.4.397 Not tainted syzkaller #0 PREEMPT(none) [ 208.614640][ T5545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 208.614642][ T5545] Call Trace: [ 208.614644][ T5545] [ 208.614646][ T5545] dump_stack_lvl+0xa2/0xf0 [ 208.614655][ T5545] sysfs_create_dir_ns+0xe8/0x130 [ 208.614662][ T5545] kobject_add_internal+0x17d/0x330 [ 208.614669][ T5545] kobject_init_and_add+0xb2/0x160 [ 208.614678][ T5545] gfs2_sys_fs_add+0xef/0x1e0 [ 208.614690][ T5545] gfs2_fill_super+0x774/0xac0 [ 208.614698][ T5545] ? __pfx_gfs2_fill_super+0x10/0x10 [ 208.614702][ T5545] get_tree_bdev_flags+0x13c/0x1c0 [ 208.614708][ T5545] gfs2_get_tree+0x20/0x90 [ 208.614713][ T5545] vfs_get_tree+0x29/0xb0 [ 208.614717][ T5545] do_new_mount+0x14d/0x360 [ 208.614722][ T5545] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.614726][ T5545] ? ns_capable+0x26/0x50 [ 208.614730][ T5545] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.614732][ T5545] ? path_mount+0x84/0x570 [ 208.614737][ T5545] __se_sys_mount+0x147/0x1b0 [ 208.614743][ T5545] do_syscall_64+0x8f/0x250 [ 208.614747][ T5545] ? fpregs_restore_userregs+0x83/0xe0 [ 208.614751][ T5545] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.614756][ T5545] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.614759][ T5545] RIP: 0033:0x7f91ef19038a [ 208.614763][ T5545] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 208.614766][ T5545] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 208.614770][ T5545] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 208.614772][ T5545] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 208.614773][ T5545] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 208.614775][ T5545] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 208.614777][ T5545] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 208.614785][ T5545] [ 208.614788][ T5545] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.828132][ T5545] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.945157][ T5549] loop4: detected capacity change from 0 to 32768 [ 208.954305][ T5549] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.961716][ T5549] CPU: 0 UID: 0 PID: 5549 Comm: syz.4.398 Not tainted syzkaller #0 PREEMPT(none) [ 208.961750][ T5549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 208.961752][ T5549] Call Trace: [ 208.961754][ T5549] [ 208.961756][ T5549] dump_stack_lvl+0xa2/0xf0 [ 208.961765][ T5549] sysfs_create_dir_ns+0xe8/0x130 [ 208.961771][ T5549] kobject_add_internal+0x17d/0x330 [ 208.961778][ T5549] kobject_init_and_add+0xb2/0x160 [ 208.961786][ T5549] gfs2_sys_fs_add+0xef/0x1e0 [ 208.961796][ T5549] gfs2_fill_super+0x774/0xac0 [ 208.961803][ T5549] ? __pfx_gfs2_fill_super+0x10/0x10 [ 208.961807][ T5549] get_tree_bdev_flags+0x13c/0x1c0 [ 208.961812][ T5549] gfs2_get_tree+0x20/0x90 [ 208.961816][ T5549] vfs_get_tree+0x29/0xb0 [ 208.961820][ T5549] do_new_mount+0x14d/0x360 [ 208.961824][ T5549] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.961827][ T5549] ? ns_capable+0x26/0x50 [ 208.961831][ T5549] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.961833][ T5549] ? path_mount+0x84/0x570 [ 208.961837][ T5549] __se_sys_mount+0x147/0x1b0 [ 208.961843][ T5549] do_syscall_64+0x8f/0x250 [ 208.961847][ T5549] ? fpregs_restore_userregs+0x83/0xe0 [ 208.961850][ T5549] ? srso_alias_return_thunk+0x5/0xfbef5 [ 208.961854][ T5549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 208.961863][ T5549] RIP: 0033:0x7f91ef19038a [ 208.961867][ T5549] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 208.961870][ T5549] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 208.961874][ T5549] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 208.961875][ T5549] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 208.961877][ T5549] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 208.961878][ T5549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 208.961880][ T5549] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 208.961888][ T5549] [ 208.961891][ T5549] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.175739][ T5549] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.292536][ T5553] loop4: detected capacity change from 0 to 32768 [ 209.300569][ T5553] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.307973][ T5553] CPU: 1 UID: 0 PID: 5553 Comm: syz.4.399 Not tainted syzkaller #0 PREEMPT(none) [ 209.307979][ T5553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 209.307981][ T5553] Call Trace: [ 209.307983][ T5553] [ 209.307985][ T5553] dump_stack_lvl+0xa2/0xf0 [ 209.307993][ T5553] sysfs_create_dir_ns+0xe8/0x130 [ 209.308000][ T5553] kobject_add_internal+0x17d/0x330 [ 209.308007][ T5553] kobject_init_and_add+0xb2/0x160 [ 209.308015][ T5553] gfs2_sys_fs_add+0xef/0x1e0 [ 209.308025][ T5553] gfs2_fill_super+0x774/0xac0 [ 209.308033][ T5553] ? __pfx_gfs2_fill_super+0x10/0x10 [ 209.308036][ T5553] get_tree_bdev_flags+0x13c/0x1c0 [ 209.308042][ T5553] gfs2_get_tree+0x20/0x90 [ 209.308046][ T5553] vfs_get_tree+0x29/0xb0 [ 209.308050][ T5553] do_new_mount+0x14d/0x360 [ 209.308055][ T5553] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.308058][ T5553] ? ns_capable+0x26/0x50 [ 209.308061][ T5553] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.308063][ T5553] ? path_mount+0x84/0x570 [ 209.308068][ T5553] __se_sys_mount+0x147/0x1b0 [ 209.308074][ T5553] do_syscall_64+0x8f/0x250 [ 209.308078][ T5553] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.308080][ T5553] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.308085][ T5553] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.308088][ T5553] RIP: 0033:0x7f91ef19038a [ 209.308092][ T5553] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 209.308094][ T5553] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 209.308098][ T5553] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 209.308100][ T5553] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 209.308101][ T5553] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 209.308103][ T5553] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 209.308105][ T5553] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 209.308119][ T5553] [ 209.308122][ T5553] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.522355][ T5553] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.640278][ T5557] loop4: detected capacity change from 0 to 32768 [ 209.648052][ T5557] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.655425][ T5557] CPU: 0 UID: 0 PID: 5557 Comm: syz.4.400 Not tainted syzkaller #0 PREEMPT(none) [ 209.655430][ T5557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 209.655432][ T5557] Call Trace: [ 209.655435][ T5557] [ 209.655437][ T5557] dump_stack_lvl+0xa2/0xf0 [ 209.655445][ T5557] sysfs_create_dir_ns+0xe8/0x130 [ 209.655451][ T5557] kobject_add_internal+0x17d/0x330 [ 209.655457][ T5557] kobject_init_and_add+0xb2/0x160 [ 209.655466][ T5557] gfs2_sys_fs_add+0xef/0x1e0 [ 209.655476][ T5557] gfs2_fill_super+0x774/0xac0 [ 209.655483][ T5557] ? __pfx_gfs2_fill_super+0x10/0x10 [ 209.655486][ T5557] get_tree_bdev_flags+0x13c/0x1c0 [ 209.655492][ T5557] gfs2_get_tree+0x20/0x90 [ 209.655496][ T5557] vfs_get_tree+0x29/0xb0 [ 209.655500][ T5557] do_new_mount+0x14d/0x360 [ 209.655504][ T5557] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.655508][ T5557] ? ns_capable+0x26/0x50 [ 209.655512][ T5557] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.655514][ T5557] ? path_mount+0x84/0x570 [ 209.655519][ T5557] __se_sys_mount+0x147/0x1b0 [ 209.655524][ T5557] do_syscall_64+0x8f/0x250 [ 209.655528][ T5557] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.655531][ T5557] ? srso_alias_return_thunk+0x5/0xfbef5 [ 209.655535][ T5557] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 209.655538][ T5557] RIP: 0033:0x7f91ef19038a [ 209.655542][ T5557] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 209.655545][ T5557] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 209.655548][ T5557] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 209.655550][ T5557] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 209.655552][ T5557] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 209.655553][ T5557] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 209.655555][ T5557] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 209.655563][ T5557] [ 209.655566][ T5557] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.869353][ T5557] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.985640][ T5561] loop4: detected capacity change from 0 to 32768 [ 209.994628][ T5561] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.002116][ T5561] CPU: 0 UID: 0 PID: 5561 Comm: syz.4.401 Not tainted syzkaller #0 PREEMPT(none) [ 210.002121][ T5561] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 210.002124][ T5561] Call Trace: [ 210.002126][ T5561] [ 210.002128][ T5561] dump_stack_lvl+0xa2/0xf0 [ 210.002136][ T5561] sysfs_create_dir_ns+0xe8/0x130 [ 210.002143][ T5561] kobject_add_internal+0x17d/0x330 [ 210.002149][ T5561] kobject_init_and_add+0xb2/0x160 [ 210.002158][ T5561] gfs2_sys_fs_add+0xef/0x1e0 [ 210.002168][ T5561] gfs2_fill_super+0x774/0xac0 [ 210.002175][ T5561] ? __pfx_gfs2_fill_super+0x10/0x10 [ 210.002179][ T5561] get_tree_bdev_flags+0x13c/0x1c0 [ 210.002184][ T5561] gfs2_get_tree+0x20/0x90 [ 210.002189][ T5561] vfs_get_tree+0x29/0xb0 [ 210.002193][ T5561] do_new_mount+0x14d/0x360 [ 210.002197][ T5561] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.002200][ T5561] ? ns_capable+0x26/0x50 [ 210.002203][ T5561] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.002206][ T5561] ? path_mount+0x84/0x570 [ 210.002210][ T5561] __se_sys_mount+0x147/0x1b0 [ 210.002216][ T5561] do_syscall_64+0x8f/0x250 [ 210.002220][ T5561] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.002223][ T5561] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.002227][ T5561] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.002230][ T5561] RIP: 0033:0x7f91ef19038a [ 210.002234][ T5561] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 210.002237][ T5561] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 210.002241][ T5561] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 210.002243][ T5561] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 210.002244][ T5561] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 210.002246][ T5561] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 210.002248][ T5561] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 210.002256][ T5561] [ 210.002259][ T5561] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.215796][ T5561] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.332733][ T5565] loop4: detected capacity change from 0 to 32768 [ 210.341322][ T5565] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.348703][ T5565] CPU: 1 UID: 0 PID: 5565 Comm: syz.4.402 Not tainted syzkaller #0 PREEMPT(none) [ 210.348708][ T5565] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 210.348710][ T5565] Call Trace: [ 210.348712][ T5565] [ 210.348714][ T5565] dump_stack_lvl+0xa2/0xf0 [ 210.348722][ T5565] sysfs_create_dir_ns+0xe8/0x130 [ 210.348728][ T5565] kobject_add_internal+0x17d/0x330 [ 210.348734][ T5565] kobject_init_and_add+0xb2/0x160 [ 210.348743][ T5565] gfs2_sys_fs_add+0xef/0x1e0 [ 210.348753][ T5565] gfs2_fill_super+0x774/0xac0 [ 210.348760][ T5565] ? __pfx_gfs2_fill_super+0x10/0x10 [ 210.348763][ T5565] get_tree_bdev_flags+0x13c/0x1c0 [ 210.348769][ T5565] gfs2_get_tree+0x20/0x90 [ 210.348773][ T5565] vfs_get_tree+0x29/0xb0 [ 210.348777][ T5565] do_new_mount+0x14d/0x360 [ 210.348781][ T5565] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.348784][ T5565] ? ns_capable+0x26/0x50 [ 210.348787][ T5565] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.348790][ T5565] ? path_mount+0x84/0x570 [ 210.348794][ T5565] __se_sys_mount+0x147/0x1b0 [ 210.348800][ T5565] do_syscall_64+0x8f/0x250 [ 210.348804][ T5565] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.348806][ T5565] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.348811][ T5565] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.348814][ T5565] RIP: 0033:0x7f91ef19038a [ 210.348818][ T5565] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 210.348820][ T5565] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 210.348824][ T5565] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 210.348826][ T5565] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 210.348827][ T5565] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 210.348829][ T5565] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 210.348830][ T5565] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 210.348839][ T5565] [ 210.348841][ T5565] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.562661][ T5565] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.682302][ T5569] loop4: detected capacity change from 0 to 32768 [ 210.690294][ T5569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.697790][ T5569] CPU: 0 UID: 0 PID: 5569 Comm: syz.4.403 Not tainted syzkaller #0 PREEMPT(none) [ 210.697796][ T5569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 210.697798][ T5569] Call Trace: [ 210.697801][ T5569] [ 210.697804][ T5569] dump_stack_lvl+0xa2/0xf0 [ 210.697813][ T5569] sysfs_create_dir_ns+0xe8/0x130 [ 210.697821][ T5569] kobject_add_internal+0x17d/0x330 [ 210.697829][ T5569] kobject_init_and_add+0xb2/0x160 [ 210.697837][ T5569] gfs2_sys_fs_add+0xef/0x1e0 [ 210.697849][ T5569] gfs2_fill_super+0x774/0xac0 [ 210.697856][ T5569] ? __pfx_gfs2_fill_super+0x10/0x10 [ 210.697860][ T5569] get_tree_bdev_flags+0x13c/0x1c0 [ 210.697873][ T5569] gfs2_get_tree+0x20/0x90 [ 210.697877][ T5569] vfs_get_tree+0x29/0xb0 [ 210.697881][ T5569] do_new_mount+0x14d/0x360 [ 210.697886][ T5569] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.697890][ T5569] ? ns_capable+0x26/0x50 [ 210.697895][ T5569] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.697897][ T5569] ? path_mount+0x84/0x570 [ 210.697902][ T5569] __se_sys_mount+0x147/0x1b0 [ 210.697908][ T5569] do_syscall_64+0x8f/0x250 [ 210.697912][ T5569] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.697915][ T5569] ? srso_alias_return_thunk+0x5/0xfbef5 [ 210.697919][ T5569] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 210.697922][ T5569] RIP: 0033:0x7f91ef19038a [ 210.697926][ T5569] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 210.697929][ T5569] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 210.697934][ T5569] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 210.697936][ T5569] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 210.697937][ T5569] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 210.697939][ T5569] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 210.697941][ T5569] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 210.697949][ T5569] [ 210.697952][ T5569] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.911628][ T5569] gfs2: fsid=syz:syz: error -17 adding sysfs files 2025/09/30 20:10:28 executed programs: 389 [ 211.027972][ T5573] loop4: detected capacity change from 0 to 32768 [ 211.037249][ T5573] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.044679][ T5573] CPU: 0 UID: 0 PID: 5573 Comm: syz.4.404 Not tainted syzkaller #0 PREEMPT(none) [ 211.044684][ T5573] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 211.044687][ T5573] Call Trace: [ 211.044689][ T5573] [ 211.044691][ T5573] dump_stack_lvl+0xa2/0xf0 [ 211.044700][ T5573] sysfs_create_dir_ns+0xe8/0x130 [ 211.044706][ T5573] kobject_add_internal+0x17d/0x330 [ 211.044713][ T5573] kobject_init_and_add+0xb2/0x160 [ 211.044721][ T5573] gfs2_sys_fs_add+0xef/0x1e0 [ 211.044732][ T5573] gfs2_fill_super+0x774/0xac0 [ 211.044739][ T5573] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.044743][ T5573] get_tree_bdev_flags+0x13c/0x1c0 [ 211.044748][ T5573] gfs2_get_tree+0x20/0x90 [ 211.044753][ T5573] vfs_get_tree+0x29/0xb0 [ 211.044757][ T5573] do_new_mount+0x14d/0x360 [ 211.044761][ T5573] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.044764][ T5573] ? ns_capable+0x26/0x50 [ 211.044768][ T5573] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.044770][ T5573] ? path_mount+0x84/0x570 [ 211.044775][ T5573] __se_sys_mount+0x147/0x1b0 [ 211.044781][ T5573] do_syscall_64+0x8f/0x250 [ 211.044785][ T5573] ? fpregs_restore_userregs+0x83/0xe0 [ 211.044788][ T5573] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.044793][ T5573] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.044796][ T5573] RIP: 0033:0x7f91ef19038a [ 211.044800][ T5573] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 211.044802][ T5573] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 211.044806][ T5573] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 211.044808][ T5573] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 211.044810][ T5573] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 211.044811][ T5573] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 211.044813][ T5573] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 211.044820][ T5573] [ 211.044823][ T5573] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.258786][ T5573] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.374660][ T5577] loop4: detected capacity change from 0 to 32768 [ 211.383003][ T5577] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.390388][ T5577] CPU: 1 UID: 0 PID: 5577 Comm: syz.4.405 Not tainted syzkaller #0 PREEMPT(none) [ 211.390393][ T5577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 211.390396][ T5577] Call Trace: [ 211.390398][ T5577] [ 211.390401][ T5577] dump_stack_lvl+0xa2/0xf0 [ 211.390409][ T5577] sysfs_create_dir_ns+0xe8/0x130 [ 211.390415][ T5577] kobject_add_internal+0x17d/0x330 [ 211.390423][ T5577] kobject_init_and_add+0xb2/0x160 [ 211.390431][ T5577] gfs2_sys_fs_add+0xef/0x1e0 [ 211.390442][ T5577] gfs2_fill_super+0x774/0xac0 [ 211.390449][ T5577] ? __pfx_gfs2_fill_super+0x10/0x10 [ 211.390453][ T5577] get_tree_bdev_flags+0x13c/0x1c0 [ 211.390458][ T5577] gfs2_get_tree+0x20/0x90 [ 211.390463][ T5577] vfs_get_tree+0x29/0xb0 [ 211.390467][ T5577] do_new_mount+0x14d/0x360 [ 211.390471][ T5577] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.390474][ T5577] ? ns_capable+0x26/0x50 [ 211.390477][ T5577] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.390480][ T5577] ? path_mount+0x84/0x570 [ 211.390484][ T5577] __se_sys_mount+0x147/0x1b0 [ 211.390490][ T5577] do_syscall_64+0x8f/0x250 [ 211.390494][ T5577] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.390497][ T5577] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.390501][ T5577] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.390504][ T5577] RIP: 0033:0x7f91ef19038a [ 211.390508][ T5577] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 00 00 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 a8 ff ff ff f7 d8 64 89 01 48 [ 211.390511][ T5577] RSP: 002b:00007f91f0043e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 211.390515][ T5577] RAX: ffffffffffffffda RBX: 00007f91f0043ef0 RCX: 00007f91ef19038a [ 211.390517][ T5577] RDX: 00002000000124c0 RSI: 0000200000012500 RDI: 00007f91f0043eb0 [ 211.390519][ T5577] RBP: 00002000000124c0 R08: 00007f91f0043ef0 R09: 0000000000000000 [ 211.390520][ T5577] R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000012500 [ 211.390522][ T5577] R13: 00007f91f0043eb0 R14: 00000000000124d4 R15: 0000200000000000 [ 211.390530][ T5577] [ 211.390533][ T5577] kobject: kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.501663][ T31] INFO: task kworker/0:1H:51 blocked for more than 143 seconds. [ 211.503156][ T5577] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.508746][ T31] Not tainted syzkaller #0 [ 211.623232][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 211.631922][ T31] task:kworker/0:1H state:D stack:13920 pid:51 tgid:51 ppid:2 task_flags:0x4208060 flags:0x00004000 [ 211.643910][ T31] Workqueue: gfs2-glock/syz:syz glock_work_func [ 211.650113][ T31] Call Trace: [ 211.653417][ T31] [ 211.656361][ T31] __schedule+0x74a/0xc10 [ 211.660736][ T31] ? __pfx_bit_wait_io+0x10/0x10 [ 211.665686][ T31] ? schedule+0x21/0x140 [ 211.669897][ T31] schedule+0xac/0x140 [ 211.673970][ T31] io_schedule+0x3f/0x60 [ 211.678191][ T31] bit_wait_io+0xc/0x60 [ 211.682359][ T31] __wait_on_bit_lock+0x5d/0x180 [ 211.687263][ T31] ? __pfx_bit_wait_io+0x10/0x10 [ 211.692226][ T31] out_of_line_wait_on_bit_lock+0x8f/0xb0 [ 211.697934][ T31] ? __pfx_wake_bit_function+0x10/0x10 [ 211.703410][ T31] block_invalidate_folio+0x109/0x1c0 [ 211.708761][ T31] truncate_cleanup_folio+0x97/0x110 [ 211.714055][ T31] truncate_inode_pages_range+0x12d/0x550 [ 211.719751][ T31] ? do_raw_spin_unlock+0x5a/0x110 [ 211.724919][ T31] do_xmote+0x157/0x450 [ 211.729055][ T31] glock_work_func+0xdd/0x1a0 [ 211.733746][ T31] ? process_scheduled_works+0x29f/0x5e0 [ 211.739345][ T31] process_scheduled_works+0x2e7/0x5e0 [ 211.745001][ T31] worker_thread+0x20a/0x2f0 [ 211.749565][ T31] ? __pfx_worker_thread+0x10/0x10 [ 211.754685][ T31] kthread+0x203/0x230 [ 211.758722][ T31] ? __pfx_kthread+0x10/0x10 [ 211.763314][ T31] ret_from_fork+0xd2/0x1a0 [ 211.767786][ T31] ? __pfx_kthread+0x10/0x10 [ 211.772398][ T31] ret_from_fork_asm+0x1a/0x30 [ 211.777206][ T31] [ 211.780256][ T31] INFO: task syz-executor:3192 blocked for more than 143 seconds. [ 211.788180][ T31] Not tainted syzkaller #0 [ 211.793140][ T31] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 211.801783][ T31] task:syz-executor state:D stack:12120 pid:3192 tgid:3192 ppid:1 task_flags:0x400140 flags:0x00004006 [ 211.813835][ T31] Call Trace: [ 211.817090][ T31] [ 211.819989][ T31] __schedule+0x74a/0xc10 [ 211.824447][ T31] ? schedule+0x21/0x140 [ 211.828830][ T31] schedule+0xac/0x140 [ 211.832879][ T31] schedule_timeout+0x2c/0x160 [ 211.837612][ T31] ? wait_for_common+0xf2/0x1e0 [ 211.842445][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.848040][ T31] ? do_raw_spin_unlock+0x5a/0x110 [ 211.853220][ T31] wait_for_common+0xfa/0x1e0 [ 211.857871][ T31] ? __flush_work+0x5d/0x410 [ 211.862444][ T31] __flush_work+0x3f3/0x410 [ 211.866917][ T31] ? __flush_work+0x5d/0x410 [ 211.871463][ T31] ? __pfx_wq_barrier_func+0x10/0x10 [ 211.876737][ T31] gfs2_clear_rgrpd+0x9b/0x170 [ 211.881581][ T31] gfs2_put_super+0x25f/0x2a0 [ 211.886226][ T31] generic_shutdown_super+0x7b/0x120 [ 211.891468][ T31] kill_block_super+0x16/0x40 [ 211.896316][ T31] deactivate_locked_super+0x36/0x150 [ 211.901681][ T31] cleanup_mnt+0x7c/0x130 [ 211.905992][ T31] task_work_run+0x87/0xb0 [ 211.910383][ T31] exit_to_user_mode_loop+0xbf/0xd0 [ 211.915673][ T31] do_syscall_64+0x181/0x250 [ 211.920234][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.925873][ T31] ? srso_alias_return_thunk+0x5/0xfbef5 [ 211.931476][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 211.937353][ T31] RIP: 0033:0x7fe743b8ff17 [ 211.941765][ T31] RSP: 002b:00007ffe612e3228 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 211.950140][ T31] RAX: 0000000000000000 RBX: 0000000000000064 RCX: 00007fe743b8ff17 [ 211.958094][ T31] RDX: 0000000000000200 RSI: 0000000000000009 RDI: 00007ffe612e43d0 [ 211.966074][ T31] RBP: 00007fe743c11c05 R08: 000055557e466523 R09: 0000000000000000 [ 211.974052][ T31] R10: 0000000000000100 R11: 0000000000000202 R12: 00007ffe612e43d0 [ 211.982013][ T31] R13: 00007fe743c11c05 R14: 000055557e44b4a8 R15: 00007ffe612e54a0 [ 211.989957][ T31] [ 211.992982][ T31] [ 211.992982][ T31] Showing all locks held in the system: [ 212.000686][ T31] 1 lock held by khungtaskd/31: [ 212.005640][ T31] #0: ffffffff839e06f0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100 [ 212.015531][ T31] 2 locks held by kworker/0:1H/51: [ 212.020610][ T31] #0: ffff8881067f8348 ((wq_completion)gfs2-glock/syz:syz){....}-{0:0}, at: process_scheduled_works+0x27f/0x5e0 [ 212.032522][ T31] #1: ffffc900001b3e48 ((work_completion)(&(&gl->gl_work)->work)){....}-{0:0}, at: process_scheduled_works+0x29f/0x5e0 [ 212.045044][ T31] 2 locks held by kworker/u8:3/64: [ 212.050135][ T31] 2 locks held by getty/1692: [ 212.054815][ T31] #0: ffff8881027a18a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 [ 212.064560][ T31] #1: ffffc90002ccb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1c3/0x6e0 [ 212.074572][ T31] 1 lock held by syz-executor/3192: [ 212.079737][ T31] #0: ffff8881047380e0 (&type->s_umount_key#47){....}-{3:3}, at: deactivate_super+0x33/0x40 [ 212.089913][ T31] 2 locks held by syz.4.406/5581: [ 212.094933][ T31] [ 212.097236][ T31] ============================================= [ 212.097236][ T31] [ 212.105657][ T31] NMI backtrace for cpu 1 [ 212.105664][ T31] CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(none) [ 212.105668][ T31] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 212.105670][ T31] Call Trace: [ 212.105673][ T31] [ 212.105674][ T31] dump_stack_lvl+0xa2/0xf0 [ 212.105683][ T31] nmi_cpu_backtrace+0x109/0x170 [ 212.105689][ T31] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 212.105694][ T31] nmi_trigger_cpumask_backtrace+0x8e/0x140 [ 212.105698][ T31] watchdog+0x581/0x5b0 [ 212.105702][ T31] ? watchdog+0xd1/0x5b0 [ 212.105704][ T31] ? __pfx_watchdog+0x10/0x10 [ 212.105707][ T31] kthread+0x203/0x230 [ 212.105712][ T31] ? __pfx_kthread+0x10/0x10 [ 212.105715][ T31] ret_from_fork+0xd2/0x1a0 [ 212.105719][ T31] ? __pfx_kthread+0x10/0x10 [ 212.105722][ T31] ret_from_fork_asm+0x1a/0x30 [ 212.105731][ T31] [ 212.105732][ T31] Sending NMI from CPU 1 to CPUs 0: [ 212.122490][ T5581] loop4: detected capacity change from 0 to 32768 [ 212.129367][ C0] NMI backtrace for cpu 0 [ 212.129371][ C0] CPU: 0 UID: 0 PID: 5581 Comm: syz.4.406 Not tainted syzkaller #0 PREEMPT(none) [ 212.129375][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 [ 212.129377][ C0] RIP: 0010:vsnprintf+0x62/0x3e0 [ 212.129384][ C0] Code: 49 89 cf 49 89 d5 48 8d 04 37 48 39 f8 48 89 f9 48 f7 d1 49 c7 c6 ff ff ff ff 4c 0f 43 f0 48 0f 43 ce 48 89 4c 24 08 80 3a 00 <48> 89 3c 24 49 89 fc 0f 84 23 03 00 00 4c 8b 24 24 31 ed 4c 89 7c [ 212.129386][ C0] RSP: 0018:ffffc900037636b0 EFLAGS: 00000202 [ 212.129390][ C0] RAX: ffffc90003763784 RBX: ffffc900037637f0 RCX: 000000000000000c [ 212.129392][ C0] RDX: ffffffff833fef8d RSI: 000000000000000c RDI: ffffc90003763778 [ 212.129393][ C0] RBP: ffffc90003763768 R08: 000000000000001f R09: 0000000000000030 [ 212.129395][ C0] R10: 00000000ffffffff R11: 0000000000000002 R12: 0000000000000000 [ 212.129396][ C0] R13: ffffffff833fef8d R14: ffffc90003763784 R15: ffffc90003763740 [ 212.129400][ C0] FS: 00007f91f00446c0(0000) GS:ffff8882b34ab000(0000) knlGS:0000000000000000 [ 212.129405][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 212.129406][ C0] CR2: 00007f91e7a00000 CR3: 0000000104376000 CR4: 0000000000350ef0 [ 212.129410][ C0] Call Trace: [ 212.129412][ C0] [ 212.129416][ C0] snprintf+0x56/0x80 [ 212.129422][ C0] info_print_prefix+0xe2/0x130 [ 212.129427][ C0] record_print_text+0x80/0x1a0 [ 212.129430][ C0] ? _prb_read_valid+0x25f/0x420 [ 212.129434][ C0] ? _raw_spin_unlock_irqrestore+0x5c/0xa0 [ 212.129440][ C0] printk_get_next_message+0x2a0/0x350 [ 212.129443][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 212.129446][ C0] ? _prb_read_valid+0x31d/0x420 [ 212.129452][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 212.129455][ C0] ? console_flush_all+0x8f/0x460 [ 212.129458][ C0] console_flush_all+0x1f3/0x460 [ 212.129463][ C0] console_unlock+0x65/0x100 [ 212.129466][ C0] ? vprintk_emit+0x1a4/0x400 [ 212.129468][ C0] vprintk_emit+0x24e/0x400 [ 212.129472][ C0] _printk+0x57/0x80 [ 212.129475][ C0] ? set_capacity_and_notify+0x9f/0x130 [ 212.129481][ C0] set_capacity_and_notify+0xf2/0x130 [ 212.129485][ C0] loop_set_size+0x10/0x40 [ 212.129490][ C0] loop_configure+0x2dc/0x420 [ 212.129498][ C0] lo_ioctl+0x585/0xa40 [ 212.129508][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 212.129510][ C0] ? blkdev_common_ioctl+0xe63/0xf10 [ 212.129517][ C0] blkdev_ioctl+0x24f/0x2a0 [ 212.129521][ C0] __se_sys_ioctl+0x6c/0xc0 [ 212.129527][ C0] do_syscall_64+0x8f/0x250 [ 212.129530][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 212.129532][ C0] ? srso_alias_return_thunk+0x5/0xfbef5 [ 212.129536][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 212.129538][ C0] RIP: 0033:0x7f91ef18e7eb [ 212.129541][ C0] Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00 [ 212.129543][ C0] RSP: 002b:00007f91f0043dc0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 212.129546][ C0] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f91ef18e7eb [ 212.129547][ C0] RDX: 0000000000000003 RSI: 0000000000004c00 RDI: 0000000000000004 [ 212.129548][ C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 00000000000124ce [ 212.129550][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 212.129551][ C0] R13: 00007f91f0043ef0 R14: 00007f91f0043eb0 R15: 00007f91e6c00000 [ 212.129556][ C0] [ 212.130364][ T31] Kernel panic - not syncing: hung_task: blocked tasks [ 212.133121][ T31] Kernel Offset: disabled