35][ T6574] gfs2_sys_fs_add+0x200/0x41c [ 205.878804][ T6574] gfs2_fill_super+0xddc/0x1a18 [ 205.879628][ T6574] get_tree_bdev+0x358/0x544 [ 205.880408][ T6574] gfs2_get_tree+0x54/0x1b4 [ 205.881201][ T6574] vfs_get_tree+0x90/0x274 [ 205.881957][ T6574] do_new_mount+0x228/0x810 [ 205.882718][ T6574] path_mount+0x5bc/0x1008 [ 205.883521][ T6574] __arm64_sys_mount+0x514/0x5f0 [ 205.884358][ T6574] invoke_syscall+0x98/0x2b0 [ 205.885100][ T6574] el0_svc_common+0x138/0x258 [ 205.885803][ T6574] do_el0_svc+0x58/0x13c [ 205.886550][ T6574] el0_svc+0x78/0x1d0 [ 205.887257][ T6574] el0t_64_sync_handler+0xcc/0xe4 [ 205.888101][ T6574] el0t_64_sync+0x1a0/0x1a4 [ 205.890447][ T6574] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.892364][ T6574] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.067450][ T6577] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.068673][ T6577] CPU: 1 PID: 6577 Comm: syz.1.553 Not tainted syzkaller #0 [ 206.069814][ T6577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 206.071555][ T6577] Call trace: [ 206.072076][ T6577] dump_backtrace+0x0/0x458 [ 206.072866][ T6577] show_stack+0x2c/0x3c [ 206.073560][ T6577] __dump_stack+0x30/0x40 [ 206.074310][ T6577] dump_stack_lvl+0xf4/0x15c [ 206.075029][ T6577] dump_stack+0x1c/0x5c [ 206.075721][ T6577] sysfs_create_dir_ns+0x244/0x264 [ 206.076578][ T6577] kobject_add_internal+0x5ac/0xc3c [ 206.077472][ T6577] kobject_init_and_add+0x124/0x190 [ 206.078376][ T6577] gfs2_sys_fs_add+0x200/0x41c [ 206.079143][ T6577] gfs2_fill_super+0xddc/0x1a18 [ 206.079943][ T6577] get_tree_bdev+0x358/0x544 [ 206.080751][ T6577] gfs2_get_tree+0x54/0x1b4 [ 206.081518][ T6577] vfs_get_tree+0x90/0x274 [ 206.082301][ T6577] do_new_mount+0x228/0x810 [ 206.083029][ T6577] path_mount+0x5bc/0x1008 [ 206.083751][ T6577] __arm64_sys_mount+0x514/0x5f0 [ 206.084578][ T6577] invoke_syscall+0x98/0x2b0 [ 206.085443][ T6577] el0_svc_common+0x138/0x258 [ 206.086236][ T6577] do_el0_svc+0x58/0x13c [ 206.087012][ T6577] el0_svc+0x78/0x1d0 [ 206.087636][ T6577] el0t_64_sync_handler+0xcc/0xe4 [ 206.088492][ T6577] el0t_64_sync+0x1a0/0x1a4 [ 206.090815][ T6577] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.092683][ T6577] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.242209][ T6580] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.243477][ T6580] CPU: 1 PID: 6580 Comm: syz.1.554 Not tainted syzkaller #0 [ 206.244712][ T6580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 206.246347][ T6580] Call trace: [ 206.246857][ T6580] dump_backtrace+0x0/0x458 [ 206.247591][ T6580] show_stack+0x2c/0x3c [ 206.248245][ T6580] __dump_stack+0x30/0x40 [ 206.248977][ T6580] dump_stack_lvl+0xf4/0x15c [ 206.249723][ T6580] dump_stack+0x1c/0x5c [ 206.250434][ T6580] sysfs_create_dir_ns+0x244/0x264 [ 206.251344][ T6580] kobject_add_internal+0x5ac/0xc3c [ 206.252173][ T6580] kobject_init_and_add+0x124/0x190 [ 206.253031][ T6580] gfs2_sys_fs_add+0x200/0x41c [ 206.253788][ T6580] gfs2_fill_super+0xddc/0x1a18 [ 206.254515][ T6580] get_tree_bdev+0x358/0x544 [ 206.255226][ T6580] gfs2_get_tree+0x54/0x1b4 [ 206.255896][ T6580] vfs_get_tree+0x90/0x274 [ 206.256625][ T6580] do_new_mount+0x228/0x810 [ 206.257340][ T6580] path_mount+0x5bc/0x1008 [ 206.258057][ T6580] __arm64_sys_mount+0x514/0x5f0 [ 206.258859][ T6580] invoke_syscall+0x98/0x2b0 [ 206.259615][ T6580] el0_svc_common+0x138/0x258 [ 206.260374][ T6580] do_el0_svc+0x58/0x13c [ 206.261072][ T6580] el0_svc+0x78/0x1d0 [ 206.261691][ T6580] el0t_64_sync_handler+0xcc/0xe4 [ 206.262488][ T6580] el0t_64_sync+0x1a0/0x1a4 [ 206.266115][ T6580] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.268255][ T6580] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.461876][ T6583] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.463079][ T6583] CPU: 0 PID: 6583 Comm: syz.1.555 Not tainted syzkaller #0 [ 206.464402][ T6583] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 206.466012][ T6583] Call trace: [ 206.466533][ T6583] dump_backtrace+0x0/0x458 [ 206.467254][ T6583] show_stack+0x2c/0x3c [ 206.467903][ T6583] __dump_stack+0x30/0x40 [ 206.468643][ T6583] dump_stack_lvl+0xf4/0x15c [ 206.469364][ T6583] dump_stack+0x1c/0x5c [ 206.470029][ T6583] sysfs_create_dir_ns+0x244/0x264 [ 206.470841][ T6583] kobject_add_internal+0x5ac/0xc3c [ 206.471747][ T6583] kobject_init_and_add+0x124/0x190 [ 206.472563][ T6583] gfs2_sys_fs_add+0x200/0x41c [ 206.473301][ T6583] gfs2_fill_super+0xddc/0x1a18 [ 206.474093][ T6583] get_tree_bdev+0x358/0x544 [ 206.474854][ T6583] gfs2_get_tree+0x54/0x1b4 [ 206.475581][ T6583] vfs_get_tree+0x90/0x274 [ 206.476267][ T6583] do_new_mount+0x228/0x810 [ 206.477039][ T6583] path_mount+0x5bc/0x1008 [ 206.477713][ T6583] __arm64_sys_mount+0x514/0x5f0 [ 206.478498][ T6583] invoke_syscall+0x98/0x2b0 [ 206.479241][ T6583] el0_svc_common+0x138/0x258 [ 206.479964][ T6583] do_el0_svc+0x58/0x13c [ 206.480667][ T6583] el0_svc+0x78/0x1d0 [ 206.481289][ T6583] el0t_64_sync_handler+0xcc/0xe4 [ 206.482115][ T6583] el0t_64_sync+0x1a0/0x1a4 [ 206.483005][ T6583] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.485235][ T6583] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.661098][ T6586] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.662286][ T6586] CPU: 1 PID: 6586 Comm: syz.1.556 Not tainted syzkaller #0 [ 206.663495][ T6586] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 206.665103][ T6586] Call trace: [ 206.665598][ T6586] dump_backtrace+0x0/0x458 [ 206.666259][ T6586] show_stack+0x2c/0x3c [ 206.666911][ T6586] __dump_stack+0x30/0x40 [ 206.667643][ T6586] dump_stack_lvl+0xf4/0x15c [ 206.668376][ T6586] dump_stack+0x1c/0x5c [ 206.669043][ T6586] sysfs_create_dir_ns+0x244/0x264 [ 206.669862][ T6586] kobject_add_internal+0x5ac/0xc3c [ 206.670711][ T6586] kobject_init_and_add+0x124/0x190 [ 206.671577][ T6586] gfs2_sys_fs_add+0x200/0x41c [ 206.672339][ T6586] gfs2_fill_super+0xddc/0x1a18 [ 206.673106][ T6586] get_tree_bdev+0x358/0x544 [ 206.673817][ T6586] gfs2_get_tree+0x54/0x1b4 [ 206.674583][ T6586] vfs_get_tree+0x90/0x274 [ 206.675298][ T6586] do_new_mount+0x228/0x810 [ 206.675998][ T6586] path_mount+0x5bc/0x1008 [ 206.676630][ T6586] __arm64_sys_mount+0x514/0x5f0 [ 206.677471][ T6586] invoke_syscall+0x98/0x2b0 [ 206.678238][ T6586] el0_svc_common+0x138/0x258 [ 206.678966][ T6586] do_el0_svc+0x58/0x13c [ 206.679660][ T6586] el0_svc+0x78/0x1d0 [ 206.680273][ T6586] el0t_64_sync_handler+0xcc/0xe4 [ 206.681031][ T6586] el0t_64_sync+0x1a0/0x1a4 [ 206.683346][ T6586] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.685250][ T6586] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.896402][ T6589] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.897563][ T6589] CPU: 1 PID: 6589 Comm: syz.1.557 Not tainted syzkaller #0 [ 206.898779][ T6589] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 206.900188][ T6589] Call trace: [ 206.900615][ T6589] dump_backtrace+0x0/0x458 [ 206.901288][ T6589] show_stack+0x2c/0x3c [ 206.901950][ T6589] __dump_stack+0x30/0x40 [ 206.902559][ T6589] dump_stack_lvl+0xf4/0x15c [ 206.903334][ T6589] dump_stack+0x1c/0x5c [ 206.903914][ T6589] sysfs_create_dir_ns+0x244/0x264 [ 206.904641][ T6589] kobject_add_internal+0x5ac/0xc3c [ 206.905437][ T6589] kobject_init_and_add+0x124/0x190 [ 206.906224][ T6589] gfs2_sys_fs_add+0x200/0x41c [ 206.906918][ T6589] gfs2_fill_super+0xddc/0x1a18 [ 206.907654][ T6589] get_tree_bdev+0x358/0x544 [ 206.908404][ T6589] gfs2_get_tree+0x54/0x1b4 [ 206.909049][ T6589] vfs_get_tree+0x90/0x274 [ 206.909680][ T6589] do_new_mount+0x228/0x810 [ 206.910472][ T6589] path_mount+0x5bc/0x1008 [ 206.911187][ T6589] __arm64_sys_mount+0x514/0x5f0 [ 206.912021][ T6589] invoke_syscall+0x98/0x2b0 [ 206.912809][ T6589] el0_svc_common+0x138/0x258 [ 206.913642][ T6589] do_el0_svc+0x58/0x13c [ 206.914349][ T6589] el0_svc+0x78/0x1d0 [ 206.915021][ T6589] el0t_64_sync_handler+0xcc/0xe4 [ 206.915844][ T6589] el0t_64_sync+0x1a0/0x1a4 [ 206.916770][ T6589] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.918955][ T6589] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.171708][ T6592] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.172918][ T6592] CPU: 0 PID: 6592 Comm: syz.1.558 Not tainted syzkaller #0 [ 207.174124][ T6592] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 207.175695][ T6592] Call trace: [ 207.176243][ T6592] dump_backtrace+0x0/0x458 [ 207.176966][ T6592] show_stack+0x2c/0x3c [ 207.177631][ T6592] __dump_stack+0x30/0x40 [ 207.178328][ T6592] dump_stack_lvl+0xf4/0x15c [ 207.179129][ T6592] dump_stack+0x1c/0x5c [ 207.179859][ T6592] sysfs_create_dir_ns+0x244/0x264 [ 207.180717][ T6592] kobject_add_internal+0x5ac/0xc3c [ 207.181555][ T6592] kobject_init_and_add+0x124/0x190 [ 207.182438][ T6592] gfs2_sys_fs_add+0x200/0x41c [ 207.183240][ T6592] gfs2_fill_super+0xddc/0x1a18 [ 207.184025][ T6592] get_tree_bdev+0x358/0x544 [ 207.184716][ T6592] gfs2_get_tree+0x54/0x1b4 [ 207.185501][ T6592] vfs_get_tree+0x90/0x274 [ 207.186276][ T6592] do_new_mount+0x228/0x810 [ 207.187045][ T6592] path_mount+0x5bc/0x1008 [ 207.187787][ T6592] __arm64_sys_mount+0x514/0x5f0 [ 207.188596][ T6592] invoke_syscall+0x98/0x2b0 [ 207.189363][ T6592] el0_svc_common+0x138/0x258 [ 207.190162][ T6592] do_el0_svc+0x58/0x13c [ 207.190870][ T6592] el0_svc+0x78/0x1d0 [ 207.191554][ T6592] el0t_64_sync_handler+0xcc/0xe4 [ 207.192394][ T6592] el0t_64_sync+0x1a0/0x1a4 [ 207.195185][ T6592] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.197078][ T6592] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.363806][ T6595] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.365274][ T6595] CPU: 1 PID: 6595 Comm: syz.1.559 Not tainted syzkaller #0 [ 207.366292][ T6595] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 207.367709][ T6595] Call trace: [ 207.368160][ T6595] dump_backtrace+0x0/0x458 [ 207.368885][ T6595] show_stack+0x2c/0x3c [ 207.369559][ T6595] __dump_stack+0x30/0x40 [ 207.370283][ T6595] dump_stack_lvl+0xf4/0x15c [ 207.371008][ T6595] dump_stack+0x1c/0x5c [ 207.371700][ T6595] sysfs_create_dir_ns+0x244/0x264 [ 207.372454][ T6595] kobject_add_internal+0x5ac/0xc3c [ 207.373272][ T6595] kobject_init_and_add+0x124/0x190 [ 207.374075][ T6595] gfs2_sys_fs_add+0x200/0x41c [ 207.374914][ T6595] gfs2_fill_super+0xddc/0x1a18 [ 207.375749][ T6595] get_tree_bdev+0x358/0x544 [ 207.376508][ T6595] gfs2_get_tree+0x54/0x1b4 [ 207.377180][ T6595] vfs_get_tree+0x90/0x274 [ 207.377877][ T6595] do_new_mount+0x228/0x810 [ 207.378602][ T6595] path_mount+0x5bc/0x1008 [ 207.379405][ T6595] __arm64_sys_mount+0x514/0x5f0 [ 207.380242][ T6595] invoke_syscall+0x98/0x2b0 [ 207.381057][ T6595] el0_svc_common+0x138/0x258 [ 207.381875][ T6595] do_el0_svc+0x58/0x13c [ 207.382586][ T6595] el0_svc+0x78/0x1d0 [ 207.383251][ T6595] el0t_64_sync_handler+0xcc/0xe4 [ 207.384062][ T6595] el0t_64_sync+0x1a0/0x1a4 [ 207.386383][ T6595] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.388292][ T6595] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.562325][ T6598] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.563574][ T6598] CPU: 0 PID: 6598 Comm: syz.1.560 Not tainted syzkaller #0 [ 207.564771][ T6598] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 207.566423][ T6598] Call trace: [ 207.566953][ T6598] dump_backtrace+0x0/0x458 [ 207.567682][ T6598] show_stack+0x2c/0x3c [ 207.568295][ T6598] __dump_stack+0x30/0x40 [ 207.568954][ T6598] dump_stack_lvl+0xf4/0x15c [ 207.569690][ T6598] dump_stack+0x1c/0x5c [ 207.570334][ T6598] sysfs_create_dir_ns+0x244/0x264 [ 207.571144][ T6598] kobject_add_internal+0x5ac/0xc3c [ 207.572005][ T6598] kobject_init_and_add+0x124/0x190 [ 207.572864][ T6598] gfs2_sys_fs_add+0x200/0x41c [ 207.573685][ T6598] gfs2_fill_super+0xddc/0x1a18 [ 207.574464][ T6598] get_tree_bdev+0x358/0x544 [ 207.575182][ T6598] gfs2_get_tree+0x54/0x1b4 [ 207.575918][ T6598] vfs_get_tree+0x90/0x274 [ 207.576591][ T6598] do_new_mount+0x228/0x810 [ 207.577418][ T6598] path_mount+0x5bc/0x1008 [ 207.578129][ T6598] __arm64_sys_mount+0x514/0x5f0 [ 207.578971][ T6598] invoke_syscall+0x98/0x2b0 [ 207.579708][ T6598] el0_svc_common+0x138/0x258 [ 207.580500][ T6598] do_el0_svc+0x58/0x13c [ 207.581211][ T6598] el0_svc+0x78/0x1d0 [ 207.581876][ T6598] el0t_64_sync_handler+0xcc/0xe4 [ 207.582763][ T6598] el0t_64_sync+0x1a0/0x1a4 [ 207.583864][ T6598] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.585985][ T6598] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:27 executed programs: 547 [ 207.730307][ T6601] set_capacity_and_notify: 15 callbacks suppressed [ 207.730317][ T6601] loop1: detected capacity change from 0 to 32768 [ 207.833778][ T6601] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.834921][ T6601] CPU: 0 PID: 6601 Comm: syz.1.561 Not tainted syzkaller #0 [ 207.836340][ T6601] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 207.838065][ T6601] Call trace: [ 207.838696][ T6601] dump_backtrace+0x0/0x458 [ 207.839441][ T6601] show_stack+0x2c/0x3c [ 207.840206][ T6601] __dump_stack+0x30/0x40 [ 207.841040][ T6601] dump_stack_lvl+0xf4/0x15c [ 207.841852][ T6601] dump_stack+0x1c/0x5c [ 207.842612][ T6601] sysfs_create_dir_ns+0x244/0x264 [ 207.843464][ T6601] kobject_add_internal+0x5ac/0xc3c [ 207.844367][ T6601] kobject_init_and_add+0x124/0x190 [ 207.845295][ T6601] gfs2_sys_fs_add+0x200/0x41c [ 207.846034][ T6601] gfs2_fill_super+0xddc/0x1a18 [ 207.846882][ T6601] get_tree_bdev+0x358/0x544 [ 207.847771][ T6601] gfs2_get_tree+0x54/0x1b4 [ 207.848668][ T6601] vfs_get_tree+0x90/0x274 [ 207.849335][ T6601] do_new_mount+0x228/0x810 [ 207.850077][ T6601] path_mount+0x5bc/0x1008 [ 207.850818][ T6601] __arm64_sys_mount+0x514/0x5f0 [ 207.851617][ T6601] invoke_syscall+0x98/0x2b0 [ 207.852371][ T6601] el0_svc_common+0x138/0x258 [ 207.853237][ T6601] do_el0_svc+0x58/0x13c [ 207.853995][ T6601] el0_svc+0x78/0x1d0 [ 207.854804][ T6601] el0t_64_sync_handler+0xcc/0xe4 [ 207.855667][ T6601] el0t_64_sync+0x1a0/0x1a4 [ 207.861547][ T6601] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.863915][ T6601] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.008753][ T6604] loop1: detected capacity change from 0 to 32768 [ 208.046165][ T6604] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.047297][ T6604] CPU: 0 PID: 6604 Comm: syz.1.562 Not tainted syzkaller #0 [ 208.048522][ T6604] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 208.050279][ T6604] Call trace: [ 208.050807][ T6604] dump_backtrace+0x0/0x458 [ 208.051559][ T6604] show_stack+0x2c/0x3c [ 208.052254][ T6604] __dump_stack+0x30/0x40 [ 208.052998][ T6604] dump_stack_lvl+0xf4/0x15c [ 208.053790][ T6604] dump_stack+0x1c/0x5c [ 208.054498][ T6604] sysfs_create_dir_ns+0x244/0x264 [ 208.055367][ T6604] kobject_add_internal+0x5ac/0xc3c [ 208.056217][ T6604] kobject_init_and_add+0x124/0x190 [ 208.057050][ T6604] gfs2_sys_fs_add+0x200/0x41c [ 208.057884][ T6604] gfs2_fill_super+0xddc/0x1a18 [ 208.058703][ T6604] get_tree_bdev+0x358/0x544 [ 208.059529][ T6604] gfs2_get_tree+0x54/0x1b4 [ 208.060247][ T6604] vfs_get_tree+0x90/0x274 [ 208.060981][ T6604] do_new_mount+0x228/0x810 [ 208.061674][ T6604] path_mount+0x5bc/0x1008 [ 208.062396][ T6604] __arm64_sys_mount+0x514/0x5f0 [ 208.063203][ T6604] invoke_syscall+0x98/0x2b0 [ 208.063990][ T6604] el0_svc_common+0x138/0x258 [ 208.064775][ T6604] do_el0_svc+0x58/0x13c [ 208.065480][ T6604] el0_svc+0x78/0x1d0 [ 208.066137][ T6604] el0t_64_sync_handler+0xcc/0xe4 [ 208.066953][ T6604] el0t_64_sync+0x1a0/0x1a4 [ 208.068052][ T6604] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.070221][ T6604] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.204189][ T6607] loop1: detected capacity change from 0 to 32768 [ 208.251735][ T6607] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.252909][ T6607] CPU: 1 PID: 6607 Comm: syz.1.563 Not tainted syzkaller #0 [ 208.254183][ T6607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 208.255867][ T6607] Call trace: [ 208.256568][ T6607] dump_backtrace+0x0/0x458 [ 208.257363][ T6607] show_stack+0x2c/0x3c [ 208.258040][ T6607] __dump_stack+0x30/0x40 [ 208.258814][ T6607] dump_stack_lvl+0xf4/0x15c [ 208.259623][ T6607] dump_stack+0x1c/0x5c [ 208.260334][ T6607] sysfs_create_dir_ns+0x244/0x264 [ 208.261206][ T6607] kobject_add_internal+0x5ac/0xc3c [ 208.262070][ T6607] kobject_init_and_add+0x124/0x190 [ 208.262949][ T6607] gfs2_sys_fs_add+0x200/0x41c [ 208.263732][ T6607] gfs2_fill_super+0xddc/0x1a18 [ 208.264577][ T6607] get_tree_bdev+0x358/0x544 [ 208.265309][ T6607] gfs2_get_tree+0x54/0x1b4 [ 208.266061][ T6607] vfs_get_tree+0x90/0x274 [ 208.266830][ T6607] do_new_mount+0x228/0x810 [ 208.267541][ T6607] path_mount+0x5bc/0x1008 [ 208.268291][ T6607] __arm64_sys_mount+0x514/0x5f0 [ 208.269130][ T6607] invoke_syscall+0x98/0x2b0 [ 208.269877][ T6607] el0_svc_common+0x138/0x258 [ 208.270604][ T6607] do_el0_svc+0x58/0x13c [ 208.271277][ T6607] el0_svc+0x78/0x1d0 [ 208.271900][ T6607] el0t_64_sync_handler+0xcc/0xe4 [ 208.272686][ T6607] el0t_64_sync+0x1a0/0x1a4 [ 208.274468][ T6607] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.276586][ T6607] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.415874][ T6610] loop1: detected capacity change from 0 to 32768 [ 208.424419][ T6610] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.425535][ T6610] CPU: 0 PID: 6610 Comm: syz.1.564 Not tainted syzkaller #0 [ 208.426634][ T6610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 208.428267][ T6610] Call trace: [ 208.428802][ T6610] dump_backtrace+0x0/0x458 [ 208.429551][ T6610] show_stack+0x2c/0x3c [ 208.430277][ T6610] __dump_stack+0x30/0x40 [ 208.430977][ T6610] dump_stack_lvl+0xf4/0x15c [ 208.431784][ T6610] dump_stack+0x1c/0x5c [ 208.432455][ T6610] sysfs_create_dir_ns+0x244/0x264 [ 208.433309][ T6610] kobject_add_internal+0x5ac/0xc3c [ 208.434109][ T6610] kobject_init_and_add+0x124/0x190 [ 208.434986][ T6610] gfs2_sys_fs_add+0x200/0x41c [ 208.435813][ T6610] gfs2_fill_super+0xddc/0x1a18 [ 208.436595][ T6610] get_tree_bdev+0x358/0x544 [ 208.437358][ T6610] gfs2_get_tree+0x54/0x1b4 [ 208.438184][ T6610] vfs_get_tree+0x90/0x274 [ 208.438907][ T6610] do_new_mount+0x228/0x810 [ 208.439664][ T6610] path_mount+0x5bc/0x1008 [ 208.440417][ T6610] __arm64_sys_mount+0x514/0x5f0 [ 208.441236][ T6610] invoke_syscall+0x98/0x2b0 [ 208.441971][ T6610] el0_svc_common+0x138/0x258 [ 208.442766][ T6610] do_el0_svc+0x58/0x13c [ 208.443460][ T6610] el0_svc+0x78/0x1d0 [ 208.444112][ T6610] el0t_64_sync_handler+0xcc/0xe4 [ 208.445055][ T6610] el0t_64_sync+0x1a0/0x1a4 [ 208.447186][ T6610] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.449483][ T6610] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.588603][ T6613] loop1: detected capacity change from 0 to 32768 [ 208.596802][ T6613] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.597958][ T6613] CPU: 0 PID: 6613 Comm: syz.1.565 Not tainted syzkaller #0 [ 208.599119][ T6613] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 208.600727][ T6613] Call trace: [ 208.601269][ T6613] dump_backtrace+0x0/0x458 [ 208.602100][ T6613] show_stack+0x2c/0x3c [ 208.602767][ T6613] __dump_stack+0x30/0x40 [ 208.603527][ T6613] dump_stack_lvl+0xf4/0x15c [ 208.604288][ T6613] dump_stack+0x1c/0x5c [ 208.604955][ T6613] sysfs_create_dir_ns+0x244/0x264 [ 208.605799][ T6613] kobject_add_internal+0x5ac/0xc3c [ 208.606677][ T6613] kobject_init_and_add+0x124/0x190 [ 208.607543][ T6613] gfs2_sys_fs_add+0x200/0x41c [ 208.608312][ T6613] gfs2_fill_super+0xddc/0x1a18 [ 208.609156][ T6613] get_tree_bdev+0x358/0x544 [ 208.609886][ T6613] gfs2_get_tree+0x54/0x1b4 [ 208.610651][ T6613] vfs_get_tree+0x90/0x274 [ 208.611360][ T6613] do_new_mount+0x228/0x810 [ 208.612079][ T6613] path_mount+0x5bc/0x1008 [ 208.612757][ T6613] __arm64_sys_mount+0x514/0x5f0 [ 208.613626][ T6613] invoke_syscall+0x98/0x2b0 [ 208.614385][ T6613] el0_svc_common+0x138/0x258 [ 208.615177][ T6613] do_el0_svc+0x58/0x13c [ 208.615893][ T6613] el0_svc+0x78/0x1d0 [ 208.616572][ T6613] el0t_64_sync_handler+0xcc/0xe4 [ 208.617424][ T6613] el0t_64_sync+0x1a0/0x1a4 [ 208.621206][ T6613] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.623433][ T6613] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.755504][ T6616] loop1: detected capacity change from 0 to 32768 [ 208.802204][ T6616] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.803379][ T6616] CPU: 1 PID: 6616 Comm: syz.1.566 Not tainted syzkaller #0 [ 208.804639][ T6616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 208.806377][ T6616] Call trace: [ 208.806896][ T6616] dump_backtrace+0x0/0x458 [ 208.807719][ T6616] show_stack+0x2c/0x3c [ 208.808434][ T6616] __dump_stack+0x30/0x40 [ 208.809166][ T6616] dump_stack_lvl+0xf4/0x15c [ 208.809982][ T6616] dump_stack+0x1c/0x5c [ 208.810635][ T6616] sysfs_create_dir_ns+0x244/0x264 [ 208.811470][ T6616] kobject_add_internal+0x5ac/0xc3c [ 208.812324][ T6616] kobject_init_and_add+0x124/0x190 [ 208.813224][ T6616] gfs2_sys_fs_add+0x200/0x41c [ 208.814067][ T6616] gfs2_fill_super+0xddc/0x1a18 [ 208.814901][ T6616] get_tree_bdev+0x358/0x544 [ 208.815638][ T6616] gfs2_get_tree+0x54/0x1b4 [ 208.816403][ T6616] vfs_get_tree+0x90/0x274 [ 208.817162][ T6616] do_new_mount+0x228/0x810 [ 208.817925][ T6616] path_mount+0x5bc/0x1008 [ 208.818678][ T6616] __arm64_sys_mount+0x514/0x5f0 [ 208.819499][ T6616] invoke_syscall+0x98/0x2b0 [ 208.820290][ T6616] el0_svc_common+0x138/0x258 [ 208.821025][ T6616] do_el0_svc+0x58/0x13c [ 208.821708][ T6616] el0_svc+0x78/0x1d0 [ 208.822357][ T6616] el0t_64_sync_handler+0xcc/0xe4 [ 208.823190][ T6616] el0t_64_sync+0x1a0/0x1a4 [ 208.824194][ T6616] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.826421][ T6616] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.016215][ T6619] loop1: detected capacity change from 0 to 32768 [ 209.071924][ T6619] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.073990][ T6619] CPU: 1 PID: 6619 Comm: syz.1.567 Not tainted syzkaller #0 [ 209.075196][ T6619] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 209.076785][ T6619] Call trace: [ 209.077313][ T6619] dump_backtrace+0x0/0x458 [ 209.077991][ T6619] show_stack+0x2c/0x3c [ 209.078667][ T6619] __dump_stack+0x30/0x40 [ 209.079355][ T6619] dump_stack_lvl+0xf4/0x15c [ 209.080097][ T6619] dump_stack+0x1c/0x5c [ 209.080727][ T6619] sysfs_create_dir_ns+0x244/0x264 [ 209.081598][ T6619] kobject_add_internal+0x5ac/0xc3c [ 209.082482][ T6619] kobject_init_and_add+0x124/0x190 [ 209.083394][ T6619] gfs2_sys_fs_add+0x200/0x41c [ 209.084148][ T6619] gfs2_fill_super+0xddc/0x1a18 [ 209.084985][ T6619] get_tree_bdev+0x358/0x544 [ 209.085825][ T6619] gfs2_get_tree+0x54/0x1b4 [ 209.086588][ T6619] vfs_get_tree+0x90/0x274 [ 209.087371][ T6619] do_new_mount+0x228/0x810 [ 209.088122][ T6619] path_mount+0x5bc/0x1008 [ 209.088852][ T6619] __arm64_sys_mount+0x514/0x5f0 [ 209.089677][ T6619] invoke_syscall+0x98/0x2b0 [ 209.090488][ T6619] el0_svc_common+0x138/0x258 [ 209.091360][ T6619] do_el0_svc+0x58/0x13c [ 209.092052][ T6619] el0_svc+0x78/0x1d0 [ 209.092754][ T6619] el0t_64_sync_handler+0xcc/0xe4 [ 209.093600][ T6619] el0t_64_sync+0x1a0/0x1a4 [ 209.095903][ T6619] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.109673][ T6619] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.362501][ T6622] loop1: detected capacity change from 0 to 32768 [ 209.416110][ T6622] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.417422][ T6622] CPU: 1 PID: 6622 Comm: syz.1.568 Not tainted syzkaller #0 [ 209.418639][ T6622] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 209.420310][ T6622] Call trace: [ 209.420831][ T6622] dump_backtrace+0x0/0x458 [ 209.421568][ T6622] show_stack+0x2c/0x3c [ 209.422306][ T6622] __dump_stack+0x30/0x40 [ 209.423117][ T6622] dump_stack_lvl+0xf4/0x15c [ 209.423836][ T6622] dump_stack+0x1c/0x5c [ 209.424545][ T6622] sysfs_create_dir_ns+0x244/0x264 [ 209.425448][ T6622] kobject_add_internal+0x5ac/0xc3c [ 209.426340][ T6622] kobject_init_and_add+0x124/0x190 [ 209.427270][ T6622] gfs2_sys_fs_add+0x200/0x41c [ 209.428069][ T6622] gfs2_fill_super+0xddc/0x1a18 [ 209.428874][ T6622] get_tree_bdev+0x358/0x544 [ 209.429594][ T6622] gfs2_get_tree+0x54/0x1b4 [ 209.430360][ T6622] vfs_get_tree+0x90/0x274 [ 209.431062][ T6622] do_new_mount+0x228/0x810 [ 209.431819][ T6622] path_mount+0x5bc/0x1008 [ 209.432568][ T6622] __arm64_sys_mount+0x514/0x5f0 [ 209.433408][ T6622] invoke_syscall+0x98/0x2b0 [ 209.434153][ T6622] el0_svc_common+0x138/0x258 [ 209.434964][ T6622] do_el0_svc+0x58/0x13c [ 209.435621][ T6622] el0_svc+0x78/0x1d0 [ 209.436259][ T6622] el0t_64_sync_handler+0xcc/0xe4 [ 209.437141][ T6622] el0t_64_sync+0x1a0/0x1a4 [ 209.438973][ T6622] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.441142][ T6622] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.572860][ T6625] loop1: detected capacity change from 0 to 32768 [ 209.603106][ T6625] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.604416][ T6625] CPU: 0 PID: 6625 Comm: syz.1.569 Not tainted syzkaller #0 [ 209.605654][ T6625] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 209.607213][ T6625] Call trace: [ 209.607774][ T6625] dump_backtrace+0x0/0x458 [ 209.608544][ T6625] show_stack+0x2c/0x3c [ 209.609190][ T6625] __dump_stack+0x30/0x40 [ 209.609984][ T6625] dump_stack_lvl+0xf4/0x15c [ 209.610782][ T6625] dump_stack+0x1c/0x5c [ 209.611445][ T6625] sysfs_create_dir_ns+0x244/0x264 [ 209.612238][ T6625] kobject_add_internal+0x5ac/0xc3c [ 209.613113][ T6625] kobject_init_and_add+0x124/0x190 [ 209.613998][ T6625] gfs2_sys_fs_add+0x200/0x41c [ 209.614792][ T6625] gfs2_fill_super+0xddc/0x1a18 [ 209.615590][ T6625] get_tree_bdev+0x358/0x544 [ 209.616346][ T6625] gfs2_get_tree+0x54/0x1b4 [ 209.617092][ T6625] vfs_get_tree+0x90/0x274 [ 209.617852][ T6625] do_new_mount+0x228/0x810 [ 209.618571][ T6625] path_mount+0x5bc/0x1008 [ 209.619311][ T6625] __arm64_sys_mount+0x514/0x5f0 [ 209.620138][ T6625] invoke_syscall+0x98/0x2b0 [ 209.620902][ T6625] el0_svc_common+0x138/0x258 [ 209.621711][ T6625] do_el0_svc+0x58/0x13c [ 209.622419][ T6625] el0_svc+0x78/0x1d0 [ 209.623074][ T6625] el0t_64_sync_handler+0xcc/0xe4 [ 209.623898][ T6625] el0t_64_sync+0x1a0/0x1a4 [ 209.625649][ T6625] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.627744][ T6625] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.764366][ T6628] loop1: detected capacity change from 0 to 32768 [ 209.773646][ T6628] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.774898][ T6628] CPU: 1 PID: 6628 Comm: syz.1.570 Not tainted syzkaller #0 [ 209.776142][ T6628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 209.777830][ T6628] Call trace: [ 209.778335][ T6628] dump_backtrace+0x0/0x458 [ 209.779101][ T6628] show_stack+0x2c/0x3c [ 209.779801][ T6628] __dump_stack+0x30/0x40 [ 209.780458][ T6628] dump_stack_lvl+0xf4/0x15c [ 209.781232][ T6628] dump_stack+0x1c/0x5c [ 209.781906][ T6628] sysfs_create_dir_ns+0x244/0x264 [ 209.782742][ T6628] kobject_add_internal+0x5ac/0xc3c [ 209.783570][ T6628] kobject_init_and_add+0x124/0x190 [ 209.784506][ T6628] gfs2_sys_fs_add+0x200/0x41c [ 209.785322][ T6628] gfs2_fill_super+0xddc/0x1a18 [ 209.786094][ T6628] get_tree_bdev+0x358/0x544 [ 209.786837][ T6628] gfs2_get_tree+0x54/0x1b4 [ 209.787577][ T6628] vfs_get_tree+0x90/0x274 [ 209.788322][ T6628] do_new_mount+0x228/0x810 [ 209.789153][ T6628] path_mount+0x5bc/0x1008 [ 209.789906][ T6628] __arm64_sys_mount+0x514/0x5f0 [ 209.790704][ T6628] invoke_syscall+0x98/0x2b0 [ 209.791463][ T6628] el0_svc_common+0x138/0x258 [ 209.792293][ T6628] do_el0_svc+0x58/0x13c [ 209.793029][ T6628] el0_svc+0x78/0x1d0 [ 209.793709][ T6628] el0t_64_sync_handler+0xcc/0xe4 [ 209.794523][ T6628] el0t_64_sync+0x1a0/0x1a4 [ 209.796764][ T6628] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.798795][ T6628] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.943336][ T6631] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.944603][ T6631] CPU: 0 PID: 6631 Comm: syz.1.571 Not tainted syzkaller #0 [ 209.945828][ T6631] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 209.947676][ T6631] Call trace: [ 209.948269][ T6631] dump_backtrace+0x0/0x458 [ 209.949031][ T6631] show_stack+0x2c/0x3c [ 209.949782][ T6631] __dump_stack+0x30/0x40 [ 209.950532][ T6631] dump_stack_lvl+0xf4/0x15c [ 209.951309][ T6631] dump_stack+0x1c/0x5c [ 209.951984][ T6631] sysfs_create_dir_ns+0x244/0x264 [ 209.952828][ T6631] kobject_add_internal+0x5ac/0xc3c [ 209.953753][ T6631] kobject_init_and_add+0x124/0x190 [ 209.954614][ T6631] gfs2_sys_fs_add+0x200/0x41c [ 209.955376][ T6631] gfs2_fill_super+0xddc/0x1a18 [ 209.956173][ T6631] get_tree_bdev+0x358/0x544 [ 209.956984][ T6631] gfs2_get_tree+0x54/0x1b4 [ 209.957795][ T6631] vfs_get_tree+0x90/0x274 [ 209.958578][ T6631] do_new_mount+0x228/0x810 [ 209.959320][ T6631] path_mount+0x5bc/0x1008 [ 209.960007][ T6631] __arm64_sys_mount+0x514/0x5f0 [ 209.960847][ T6631] invoke_syscall+0x98/0x2b0 [ 209.961652][ T6631] el0_svc_common+0x138/0x258 [ 209.962418][ T6631] do_el0_svc+0x58/0x13c [ 209.963106][ T6631] el0_svc+0x78/0x1d0 [ 209.963762][ T6631] el0t_64_sync_handler+0xcc/0xe4 [ 209.964568][ T6631] el0t_64_sync+0x1a0/0x1a4 [ 209.966783][ T6631] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.968957][ T6631] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.151811][ T6634] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.153001][ T6634] CPU: 1 PID: 6634 Comm: syz.1.572 Not tainted syzkaller #0 [ 210.154175][ T6634] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 210.155919][ T6634] Call trace: [ 210.156470][ T6634] dump_backtrace+0x0/0x458 [ 210.157209][ T6634] show_stack+0x2c/0x3c [ 210.157919][ T6634] __dump_stack+0x30/0x40 [ 210.158620][ T6634] dump_stack_lvl+0xf4/0x15c [ 210.159415][ T6634] dump_stack+0x1c/0x5c [ 210.160066][ T6634] sysfs_create_dir_ns+0x244/0x264 [ 210.160958][ T6634] kobject_add_internal+0x5ac/0xc3c [ 210.161860][ T6634] kobject_init_and_add+0x124/0x190 [ 210.162701][ T6634] gfs2_sys_fs_add+0x200/0x41c [ 210.163514][ T6634] gfs2_fill_super+0xddc/0x1a18 [ 210.164327][ T6634] get_tree_bdev+0x358/0x544 [ 210.165085][ T6634] gfs2_get_tree+0x54/0x1b4 [ 210.165777][ T6634] vfs_get_tree+0x90/0x274 [ 210.166522][ T6634] do_new_mount+0x228/0x810 [ 210.167215][ T6634] path_mount+0x5bc/0x1008 [ 210.167902][ T6634] __arm64_sys_mount+0x514/0x5f0 [ 210.168780][ T6634] invoke_syscall+0x98/0x2b0 [ 210.169541][ T6634] el0_svc_common+0x138/0x258 [ 210.170430][ T6634] do_el0_svc+0x58/0x13c [ 210.171191][ T6634] el0_svc+0x78/0x1d0 [ 210.171863][ T6634] el0t_64_sync_handler+0xcc/0xe4 [ 210.172728][ T6634] el0t_64_sync+0x1a0/0x1a4 [ 210.173670][ T6634] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.176085][ T6634] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.321329][ T6637] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.322457][ T6637] CPU: 0 PID: 6637 Comm: syz.1.573 Not tainted syzkaller #0 [ 210.323609][ T6637] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 210.325266][ T6637] Call trace: [ 210.325809][ T6637] dump_backtrace+0x0/0x458 [ 210.326590][ T6637] show_stack+0x2c/0x3c [ 210.327328][ T6637] __dump_stack+0x30/0x40 [ 210.328119][ T6637] dump_stack_lvl+0xf4/0x15c [ 210.328919][ T6637] dump_stack+0x1c/0x5c [ 210.329595][ T6637] sysfs_create_dir_ns+0x244/0x264 [ 210.330471][ T6637] kobject_add_internal+0x5ac/0xc3c [ 210.331337][ T6637] kobject_init_and_add+0x124/0x190 [ 210.332214][ T6637] gfs2_sys_fs_add+0x200/0x41c [ 210.333059][ T6637] gfs2_fill_super+0xddc/0x1a18 [ 210.333962][ T6637] get_tree_bdev+0x358/0x544 [ 210.334763][ T6637] gfs2_get_tree+0x54/0x1b4 [ 210.335490][ T6637] vfs_get_tree+0x90/0x274 [ 210.336182][ T6637] do_new_mount+0x228/0x810 [ 210.336912][ T6637] path_mount+0x5bc/0x1008 [ 210.337677][ T6637] __arm64_sys_mount+0x514/0x5f0 [ 210.338486][ T6637] invoke_syscall+0x98/0x2b0 [ 210.339230][ T6637] el0_svc_common+0x138/0x258 [ 210.339991][ T6637] do_el0_svc+0x58/0x13c [ 210.340656][ T6637] el0_svc+0x78/0x1d0 [ 210.341304][ T6637] el0t_64_sync_handler+0xcc/0xe4 [ 210.342164][ T6637] el0t_64_sync+0x1a0/0x1a4 [ 210.344745][ T6637] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.346834][ T6637] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.487353][ T6640] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.488501][ T6640] CPU: 0 PID: 6640 Comm: syz.1.574 Not tainted syzkaller #0 [ 210.489609][ T6640] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 210.491048][ T6640] Call trace: [ 210.491572][ T6640] dump_backtrace+0x0/0x458 [ 210.492262][ T6640] show_stack+0x2c/0x3c [ 210.492855][ T6640] __dump_stack+0x30/0x40 [ 210.493532][ T6640] dump_stack_lvl+0xf4/0x15c [ 210.494220][ T6640] dump_stack+0x1c/0x5c [ 210.494828][ T6640] sysfs_create_dir_ns+0x244/0x264 [ 210.495632][ T6640] kobject_add_internal+0x5ac/0xc3c [ 210.496538][ T6640] kobject_init_and_add+0x124/0x190 [ 210.497432][ T6640] gfs2_sys_fs_add+0x200/0x41c [ 210.498237][ T6640] gfs2_fill_super+0xddc/0x1a18 [ 210.499148][ T6640] get_tree_bdev+0x358/0x544 [ 210.499902][ T6640] gfs2_get_tree+0x54/0x1b4 [ 210.500758][ T6640] vfs_get_tree+0x90/0x274 [ 210.501470][ T6640] do_new_mount+0x228/0x810 [ 210.502167][ T6640] path_mount+0x5bc/0x1008 [ 210.502949][ T6640] __arm64_sys_mount+0x514/0x5f0 [ 210.503828][ T6640] invoke_syscall+0x98/0x2b0 [ 210.504624][ T6640] el0_svc_common+0x138/0x258 [ 210.505379][ T6640] do_el0_svc+0x58/0x13c [ 210.506184][ T6640] el0_svc+0x78/0x1d0 [ 210.506811][ T6640] el0t_64_sync_handler+0xcc/0xe4 [ 210.507632][ T6640] el0t_64_sync+0x1a0/0x1a4 [ 210.510021][ T6640] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.512217][ T6640] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.657908][ T6643] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.659131][ T6643] CPU: 0 PID: 6643 Comm: syz.1.575 Not tainted syzkaller #0 [ 210.660292][ T6643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 210.661999][ T6643] Call trace: [ 210.662562][ T6643] dump_backtrace+0x0/0x458 [ 210.663350][ T6643] show_stack+0x2c/0x3c [ 210.664090][ T6643] __dump_stack+0x30/0x40 [ 210.664815][ T6643] dump_stack_lvl+0xf4/0x15c [ 210.665580][ T6643] dump_stack+0x1c/0x5c [ 210.666299][ T6643] sysfs_create_dir_ns+0x244/0x264 [ 210.667103][ T6643] kobject_add_internal+0x5ac/0xc3c [ 210.667991][ T6643] kobject_init_and_add+0x124/0x190 [ 210.668820][ T6643] gfs2_sys_fs_add+0x200/0x41c [ 210.669624][ T6643] gfs2_fill_super+0xddc/0x1a18 [ 210.670531][ T6643] get_tree_bdev+0x358/0x544 [ 210.671319][ T6643] gfs2_get_tree+0x54/0x1b4 [ 210.672047][ T6643] vfs_get_tree+0x90/0x274 [ 210.672795][ T6643] do_new_mount+0x228/0x810 [ 210.673513][ T6643] path_mount+0x5bc/0x1008 [ 210.674235][ T6643] __arm64_sys_mount+0x514/0x5f0 [ 210.675050][ T6643] invoke_syscall+0x98/0x2b0 [ 210.675798][ T6643] el0_svc_common+0x138/0x258 [ 210.676561][ T6643] do_el0_svc+0x58/0x13c [ 210.677351][ T6643] el0_svc+0x78/0x1d0 [ 210.678029][ T6643] el0t_64_sync_handler+0xcc/0xe4 [ 210.678885][ T6643] el0t_64_sync+0x1a0/0x1a4 [ 210.681309][ T6643] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.683378][ T6643] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.856137][ T6646] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.857296][ T6646] CPU: 0 PID: 6646 Comm: syz.1.576 Not tainted syzkaller #0 [ 210.858449][ T6646] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 210.860126][ T6646] Call trace: [ 210.860656][ T6646] dump_backtrace+0x0/0x458 [ 210.861443][ T6646] show_stack+0x2c/0x3c [ 210.862181][ T6646] __dump_stack+0x30/0x40 [ 210.862938][ T6646] dump_stack_lvl+0xf4/0x15c [ 210.863717][ T6646] dump_stack+0x1c/0x5c [ 210.864472][ T6646] sysfs_create_dir_ns+0x244/0x264 [ 210.865268][ T6646] kobject_add_internal+0x5ac/0xc3c [ 210.866148][ T6646] kobject_init_and_add+0x124/0x190 [ 210.866980][ T6646] gfs2_sys_fs_add+0x200/0x41c [ 210.867755][ T6646] gfs2_fill_super+0xddc/0x1a18 [ 210.868571][ T6646] get_tree_bdev+0x358/0x544 [ 210.869268][ T6646] gfs2_get_tree+0x54/0x1b4 [ 210.870014][ T6646] vfs_get_tree+0x90/0x274 [ 210.870694][ T6646] do_new_mount+0x228/0x810 [ 210.871461][ T6646] path_mount+0x5bc/0x1008 [ 210.872157][ T6646] __arm64_sys_mount+0x514/0x5f0 [ 210.872979][ T6646] invoke_syscall+0x98/0x2b0 [ 210.873800][ T6646] el0_svc_common+0x138/0x258 [ 210.874552][ T6646] do_el0_svc+0x58/0x13c [ 210.875222][ T6646] el0_svc+0x78/0x1d0 [ 210.875925][ T6646] el0t_64_sync_handler+0xcc/0xe4 [ 210.876742][ T6646] el0t_64_sync+0x1a0/0x1a4 [ 210.877712][ T6646] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.879799][ T6646] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.061747][ T6649] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.062959][ T6649] CPU: 1 PID: 6649 Comm: syz.1.577 Not tainted syzkaller #0 [ 211.064195][ T6649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 211.065933][ T6649] Call trace: [ 211.066552][ T6649] dump_backtrace+0x0/0x458 [ 211.067338][ T6649] show_stack+0x2c/0x3c [ 211.068034][ T6649] __dump_stack+0x30/0x40 [ 211.068741][ T6649] dump_stack_lvl+0xf4/0x15c [ 211.069491][ T6649] dump_stack+0x1c/0x5c [ 211.070151][ T6649] sysfs_create_dir_ns+0x244/0x264 [ 211.071038][ T6649] kobject_add_internal+0x5ac/0xc3c [ 211.071837][ T6649] kobject_init_and_add+0x124/0x190 [ 211.072646][ T6649] gfs2_sys_fs_add+0x200/0x41c [ 211.073464][ T6649] gfs2_fill_super+0xddc/0x1a18 [ 211.074293][ T6649] get_tree_bdev+0x358/0x544 [ 211.075068][ T6649] gfs2_get_tree+0x54/0x1b4 [ 211.075825][ T6649] vfs_get_tree+0x90/0x274 [ 211.076562][ T6649] do_new_mount+0x228/0x810 [ 211.077293][ T6649] path_mount+0x5bc/0x1008 [ 211.077997][ T6649] __arm64_sys_mount+0x514/0x5f0 [ 211.078809][ T6649] invoke_syscall+0x98/0x2b0 [ 211.079562][ T6649] el0_svc_common+0x138/0x258 [ 211.080349][ T6649] do_el0_svc+0x58/0x13c [ 211.081063][ T6649] el0_svc+0x78/0x1d0 [ 211.081723][ T6649] el0t_64_sync_handler+0xcc/0xe4 [ 211.082578][ T6649] el0t_64_sync+0x1a0/0x1a4 [ 211.084791][ T6649] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.086946][ T6649] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.262075][ T6652] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.263357][ T6652] CPU: 1 PID: 6652 Comm: syz.1.578 Not tainted syzkaller #0 [ 211.264591][ T6652] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 211.266221][ T6652] Call trace: [ 211.266727][ T6652] dump_backtrace+0x0/0x458 [ 211.267409][ T6652] show_stack+0x2c/0x3c [ 211.268095][ T6652] __dump_stack+0x30/0x40 [ 211.268794][ T6652] dump_stack_lvl+0xf4/0x15c [ 211.269509][ T6652] dump_stack+0x1c/0x5c [ 211.270145][ T6652] sysfs_create_dir_ns+0x244/0x264 [ 211.271033][ T6652] kobject_add_internal+0x5ac/0xc3c [ 211.271907][ T6652] kobject_init_and_add+0x124/0x190 [ 211.272831][ T6652] gfs2_sys_fs_add+0x200/0x41c [ 211.273630][ T6652] gfs2_fill_super+0xddc/0x1a18 [ 211.274426][ T6652] get_tree_bdev+0x358/0x544 [ 211.275169][ T6652] gfs2_get_tree+0x54/0x1b4 [ 211.275871][ T6652] vfs_get_tree+0x90/0x274 [ 211.276579][ T6652] do_new_mount+0x228/0x810 [ 211.277346][ T6652] path_mount+0x5bc/0x1008 [ 211.278038][ T6652] __arm64_sys_mount+0x514/0x5f0 [ 211.278874][ T6652] invoke_syscall+0x98/0x2b0 [ 211.279582][ T6652] el0_svc_common+0x138/0x258 [ 211.280296][ T6652] do_el0_svc+0x58/0x13c [ 211.281008][ T6652] el0_svc+0x78/0x1d0 [ 211.281655][ T6652] el0t_64_sync_handler+0xcc/0xe4 [ 211.282435][ T6652] el0t_64_sync+0x1a0/0x1a4 [ 211.285245][ T6652] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.287399][ T6652] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.461903][ T6655] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.463210][ T6655] CPU: 1 PID: 6655 Comm: syz.1.579 Not tainted syzkaller #0 [ 211.464481][ T6655] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 211.466099][ T6655] Call trace: [ 211.466603][ T6655] dump_backtrace+0x0/0x458 [ 211.467392][ T6655] show_stack+0x2c/0x3c [ 211.468029][ T6655] __dump_stack+0x30/0x40 [ 211.468787][ T6655] dump_stack_lvl+0xf4/0x15c [ 211.469582][ T6655] dump_stack+0x1c/0x5c [ 211.470286][ T6655] sysfs_create_dir_ns+0x244/0x264 [ 211.471152][ T6655] kobject_add_internal+0x5ac/0xc3c [ 211.472011][ T6655] kobject_init_and_add+0x124/0x190 [ 211.472802][ T6655] gfs2_sys_fs_add+0x200/0x41c [ 211.473593][ T6655] gfs2_fill_super+0xddc/0x1a18 [ 211.474427][ T6655] get_tree_bdev+0x358/0x544 [ 211.475189][ T6655] gfs2_get_tree+0x54/0x1b4 [ 211.475920][ T6655] vfs_get_tree+0x90/0x274 [ 211.476626][ T6655] do_new_mount+0x228/0x810 [ 211.477303][ T6655] path_mount+0x5bc/0x1008 [ 211.477973][ T6655] __arm64_sys_mount+0x514/0x5f0 [ 211.478815][ T6655] invoke_syscall+0x98/0x2b0 [ 211.479539][ T6655] el0_svc_common+0x138/0x258 [ 211.480306][ T6655] do_el0_svc+0x58/0x13c [ 211.481005][ T6655] el0_svc+0x78/0x1d0 [ 211.481651][ T6655] el0t_64_sync_handler+0xcc/0xe4 [ 211.482491][ T6655] el0t_64_sync+0x1a0/0x1a4 [ 211.484994][ T6655] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.487024][ T6655] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.661747][ T6658] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.662939][ T6658] CPU: 1 PID: 6658 Comm: syz.1.580 Not tainted syzkaller #0 [ 211.664058][ T6658] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 211.665762][ T6658] Call trace: [ 211.666315][ T6658] dump_backtrace+0x0/0x458 [ 211.667025][ T6658] show_stack+0x2c/0x3c [ 211.667710][ T6658] __dump_stack+0x30/0x40 [ 211.668412][ T6658] dump_stack_lvl+0xf4/0x15c [ 211.669210][ T6658] dump_stack+0x1c/0x5c [ 211.669926][ T6658] sysfs_create_dir_ns+0x244/0x264 [ 211.670740][ T6658] kobject_add_internal+0x5ac/0xc3c [ 211.671489][ T6658] kobject_init_and_add+0x124/0x190 [ 211.672347][ T6658] gfs2_sys_fs_add+0x200/0x41c [ 211.673192][ T6658] gfs2_fill_super+0xddc/0x1a18 [ 211.674043][ T6658] get_tree_bdev+0x358/0x544 [ 211.674793][ T6658] gfs2_get_tree+0x54/0x1b4 [ 211.675564][ T6658] vfs_get_tree+0x90/0x274 [ 211.676287][ T6658] do_new_mount+0x228/0x810 [ 211.677025][ T6658] path_mount+0x5bc/0x1008 [ 211.677698][ T6658] __arm64_sys_mount+0x514/0x5f0 [ 211.678461][ T6658] invoke_syscall+0x98/0x2b0 [ 211.679170][ T6658] el0_svc_common+0x138/0x258 [ 211.679953][ T6658] do_el0_svc+0x58/0x13c [ 211.680579][ T6658] el0_svc+0x78/0x1d0 [ 211.681280][ T6658] el0t_64_sync_handler+0xcc/0xe4 [ 211.682024][ T6658] el0t_64_sync+0x1a0/0x1a4 [ 211.683661][ T6658] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.685674][ T6658] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.837320][ T6661] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.838618][ T6661] CPU: 1 PID: 6661 Comm: syz.1.581 Not tainted syzkaller #0 [ 211.839806][ T6661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 211.841537][ T6661] Call trace: [ 211.842054][ T6661] dump_backtrace+0x0/0x458 [ 211.842786][ T6661] show_stack+0x2c/0x3c [ 211.843542][ T6661] __dump_stack+0x30/0x40 [ 211.844263][ T6661] dump_stack_lvl+0xf4/0x15c [ 211.845024][ T6661] dump_stack+0x1c/0x5c [ 211.845689][ T6661] sysfs_create_dir_ns+0x244/0x264 [ 211.846560][ T6661] kobject_add_internal+0x5ac/0xc3c [ 211.847432][ T6661] kobject_init_and_add+0x124/0x190 [ 211.848252][ T6661] gfs2_sys_fs_add+0x200/0x41c [ 211.849054][ T6661] gfs2_fill_super+0xddc/0x1a18 [ 211.849869][ T6661] get_tree_bdev+0x358/0x544 [ 211.850615][ T6661] gfs2_get_tree+0x54/0x1b4 [ 211.851397][ T6661] vfs_get_tree+0x90/0x274 [ 211.852163][ T6661] do_new_mount+0x228/0x810 [ 211.852971][ T6661] path_mount+0x5bc/0x1008 [ 211.853686][ T6661] __arm64_sys_mount+0x514/0x5f0 [ 211.854528][ T6661] invoke_syscall+0x98/0x2b0 [ 211.855286][ T6661] el0_svc_common+0x138/0x258 [ 211.856058][ T6661] do_el0_svc+0x58/0x13c [ 211.856732][ T6661] el0_svc+0x78/0x1d0 [ 211.857399][ T6661] el0t_64_sync_handler+0xcc/0xe4 [ 211.858233][ T6661] el0t_64_sync+0x1a0/0x1a4 [ 211.862393][ T6661] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.864414][ T6661] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.035292][ T6664] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.036494][ T6664] CPU: 1 PID: 6664 Comm: syz.1.582 Not tainted syzkaller #0 [ 212.037688][ T6664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 212.039381][ T6664] Call trace: [ 212.039881][ T6664] dump_backtrace+0x0/0x458 [ 212.040586][ T6664] show_stack+0x2c/0x3c [ 212.041281][ T6664] __dump_stack+0x30/0x40 [ 212.042029][ T6664] dump_stack_lvl+0xf4/0x15c [ 212.042732][ T6664] dump_stack+0x1c/0x5c [ 212.043427][ T6664] sysfs_create_dir_ns+0x244/0x264 [ 212.044282][ T6664] kobject_add_internal+0x5ac/0xc3c [ 212.045167][ T6664] kobject_init_and_add+0x124/0x190 [ 212.046047][ T6664] gfs2_sys_fs_add+0x200/0x41c [ 212.046891][ T6664] gfs2_fill_super+0xddc/0x1a18 [ 212.047698][ T6664] get_tree_bdev+0x358/0x544 [ 212.048432][ T6664] gfs2_get_tree+0x54/0x1b4 [ 212.049248][ T6664] vfs_get_tree+0x90/0x274 [ 212.050039][ T6664] do_new_mount+0x228/0x810 [ 212.050795][ T6664] path_mount+0x5bc/0x1008 [ 212.051510][ T6664] __arm64_sys_mount+0x514/0x5f0 [ 212.052309][ T6664] invoke_syscall+0x98/0x2b0 [ 212.053061][ T6664] el0_svc_common+0x138/0x258 [ 212.053802][ T6664] do_el0_svc+0x58/0x13c [ 212.054521][ T6664] el0_svc+0x78/0x1d0 [ 212.055194][ T6664] el0t_64_sync_handler+0xcc/0xe4 [ 212.056026][ T6664] el0t_64_sync+0x1a0/0x1a4 [ 212.058016][ T6664] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.060244][ T6664] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.239550][ T6667] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.240760][ T6667] CPU: 0 PID: 6667 Comm: syz.1.583 Not tainted syzkaller #0 [ 212.241962][ T6667] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 212.243604][ T6667] Call trace: [ 212.244065][ T6667] dump_backtrace+0x0/0x458 [ 212.244792][ T6667] show_stack+0x2c/0x3c [ 212.245469][ T6667] __dump_stack+0x30/0x40 [ 212.246291][ T6667] dump_stack_lvl+0xf4/0x15c [ 212.247054][ T6667] dump_stack+0x1c/0x5c [ 212.247742][ T6667] sysfs_create_dir_ns+0x244/0x264 [ 212.248555][ T6667] kobject_add_internal+0x5ac/0xc3c [ 212.249403][ T6667] kobject_init_and_add+0x124/0x190 [ 212.250177][ T6667] gfs2_sys_fs_add+0x200/0x41c [ 212.250918][ T6667] gfs2_fill_super+0xddc/0x1a18 [ 212.251705][ T6667] get_tree_bdev+0x358/0x544 [ 212.252438][ T6667] gfs2_get_tree+0x54/0x1b4 [ 212.253260][ T6667] vfs_get_tree+0x90/0x274 [ 212.253983][ T6667] do_new_mount+0x228/0x810 [ 212.254727][ T6667] path_mount+0x5bc/0x1008 [ 212.255481][ T6667] __arm64_sys_mount+0x514/0x5f0 [ 212.256361][ T6667] invoke_syscall+0x98/0x2b0 [ 212.257166][ T6667] el0_svc_common+0x138/0x258 [ 212.257946][ T6667] do_el0_svc+0x58/0x13c [ 212.258700][ T6667] el0_svc+0x78/0x1d0 [ 212.259362][ T6667] el0t_64_sync_handler+0xcc/0xe4 [ 212.260185][ T6667] el0t_64_sync+0x1a0/0x1a4 [ 212.261205][ T6667] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.263177][ T6667] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.407774][ T6670] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.409014][ T6670] CPU: 1 PID: 6670 Comm: syz.1.584 Not tainted syzkaller #0 [ 212.410291][ T6670] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 212.411956][ T6670] Call trace: [ 212.412539][ T6670] dump_backtrace+0x0/0x458 [ 212.413310][ T6670] show_stack+0x2c/0x3c [ 212.414044][ T6670] __dump_stack+0x30/0x40 [ 212.414761][ T6670] dump_stack_lvl+0xf4/0x15c [ 212.415553][ T6670] dump_stack+0x1c/0x5c [ 212.416249][ T6670] sysfs_create_dir_ns+0x244/0x264 [ 212.417059][ T6670] kobject_add_internal+0x5ac/0xc3c [ 212.417897][ T6670] kobject_init_and_add+0x124/0x190 [ 212.418727][ T6670] gfs2_sys_fs_add+0x200/0x41c [ 212.419501][ T6670] gfs2_fill_super+0xddc/0x1a18 [ 212.420295][ T6670] get_tree_bdev+0x358/0x544 [ 212.421098][ T6670] gfs2_get_tree+0x54/0x1b4 [ 212.421871][ T6670] vfs_get_tree+0x90/0x274 [ 212.422592][ T6670] do_new_mount+0x228/0x810 [ 212.423312][ T6670] path_mount+0x5bc/0x1008 [ 212.424004][ T6670] __arm64_sys_mount+0x514/0x5f0 [ 212.424843][ T6670] invoke_syscall+0x98/0x2b0 [ 212.425565][ T6670] el0_svc_common+0x138/0x258 [ 212.426277][ T6670] do_el0_svc+0x58/0x13c [ 212.426972][ T6670] el0_svc+0x78/0x1d0 [ 212.427566][ T6670] el0t_64_sync_handler+0xcc/0xe4 [ 212.428336][ T6670] el0t_64_sync+0x1a0/0x1a4 [ 212.429994][ T6670] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.432218][ T6670] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.737397][ T6673] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.738591][ T6673] CPU: 1 PID: 6673 Comm: syz.1.585 Not tainted syzkaller #0 [ 212.739759][ T6673] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 212.741438][ T6673] Call trace: [ 212.741943][ T6673] dump_backtrace+0x0/0x458 [ 212.742754][ T6673] show_stack+0x2c/0x3c [ 212.743518][ T6673] __dump_stack+0x30/0x40 [ 212.744322][ T6673] dump_stack_lvl+0xf4/0x15c [ 212.745042][ T6673] dump_stack+0x1c/0x5c [ 212.745754][ T6673] sysfs_create_dir_ns+0x244/0x264 [ 212.746617][ T6673] kobject_add_internal+0x5ac/0xc3c [ 212.747473][ T6673] kobject_init_and_add+0x124/0x190 [ 212.748329][ T6673] gfs2_sys_fs_add+0x200/0x41c [ 212.749106][ T6673] gfs2_fill_super+0xddc/0x1a18 [ 212.749880][ T6673] get_tree_bdev+0x358/0x544 [ 212.750554][ T6673] gfs2_get_tree+0x54/0x1b4 [ 212.751276][ T6673] vfs_get_tree+0x90/0x274 [ 212.751957][ T6673] do_new_mount+0x228/0x810 [ 212.752658][ T6673] path_mount+0x5bc/0x1008 [ 212.753390][ T6673] __arm64_sys_mount+0x514/0x5f0 [ 212.754197][ T6673] invoke_syscall+0x98/0x2b0 [ 212.754910][ T6673] el0_svc_common+0x138/0x258 [ 212.755585][ T6673] do_el0_svc+0x58/0x13c [ 212.756216][ T6673] el0_svc+0x78/0x1d0 [ 212.756874][ T6673] el0t_64_sync_handler+0xcc/0xe4 [ 212.757673][ T6673] el0t_64_sync+0x1a0/0x1a4 [ 212.758548][ T6673] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.761443][ T6673] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:32 executed programs: 572 [ 212.899473][ T6676] set_capacity_and_notify: 15 callbacks suppressed [ 212.899484][ T6676] loop1: detected capacity change from 0 to 32768 [ 212.906430][ T6676] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.907701][ T6676] CPU: 1 PID: 6676 Comm: syz.1.586 Not tainted syzkaller #0 [ 212.908842][ T6676] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 212.910506][ T6676] Call trace: [ 212.911116][ T6676] dump_backtrace+0x0/0x458 [ 212.911889][ T6676] show_stack+0x2c/0x3c [ 212.912614][ T6676] __dump_stack+0x30/0x40 [ 212.913327][ T6676] dump_stack_lvl+0xf4/0x15c [ 212.914066][ T6676] dump_stack+0x1c/0x5c [ 212.914770][ T6676] sysfs_create_dir_ns+0x244/0x264 [ 212.915593][ T6676] kobject_add_internal+0x5ac/0xc3c [ 212.916486][ T6676] kobject_init_and_add+0x124/0x190 [ 212.917352][ T6676] gfs2_sys_fs_add+0x200/0x41c [ 212.918186][ T6676] gfs2_fill_super+0xddc/0x1a18 [ 212.919011][ T6676] get_tree_bdev+0x358/0x544 [ 212.919730][ T6676] gfs2_get_tree+0x54/0x1b4 [ 212.920434][ T6676] vfs_get_tree+0x90/0x274 [ 212.921130][ T6676] do_new_mount+0x228/0x810 [ 212.921871][ T6676] path_mount+0x5bc/0x1008 [ 212.922590][ T6676] __arm64_sys_mount+0x514/0x5f0 [ 212.923376][ T6676] invoke_syscall+0x98/0x2b0 [ 212.924150][ T6676] el0_svc_common+0x138/0x258 [ 212.924875][ T6676] do_el0_svc+0x58/0x13c [ 212.925555][ T6676] el0_svc+0x78/0x1d0 [ 212.926199][ T6676] el0t_64_sync_handler+0xcc/0xe4 [ 212.927087][ T6676] el0t_64_sync+0x1a0/0x1a4 [ 212.930711][ T6676] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.932778][ T6676] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.069415][ T6679] loop1: detected capacity change from 0 to 32768 [ 213.073934][ T6679] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.075103][ T6679] CPU: 0 PID: 6679 Comm: syz.1.587 Not tainted syzkaller #0 [ 213.076337][ T6679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 213.077979][ T6679] Call trace: [ 213.078503][ T6679] dump_backtrace+0x0/0x458 [ 213.079182][ T6679] show_stack+0x2c/0x3c [ 213.079877][ T6679] __dump_stack+0x30/0x40 [ 213.080522][ T6679] dump_stack_lvl+0xf4/0x15c [ 213.081311][ T6679] dump_stack+0x1c/0x5c [ 213.082042][ T6679] sysfs_create_dir_ns+0x244/0x264 [ 213.082944][ T6679] kobject_add_internal+0x5ac/0xc3c [ 213.083813][ T6679] kobject_init_and_add+0x124/0x190 [ 213.084660][ T6679] gfs2_sys_fs_add+0x200/0x41c [ 213.085396][ T6679] gfs2_fill_super+0xddc/0x1a18 [ 213.086283][ T6679] get_tree_bdev+0x358/0x544 [ 213.087127][ T6679] gfs2_get_tree+0x54/0x1b4 [ 213.087876][ T6679] vfs_get_tree+0x90/0x274 [ 213.088626][ T6679] do_new_mount+0x228/0x810 [ 213.089406][ T6679] path_mount+0x5bc/0x1008 [ 213.090141][ T6679] __arm64_sys_mount+0x514/0x5f0 [ 213.091000][ T6679] invoke_syscall+0x98/0x2b0 [ 213.091775][ T6679] el0_svc_common+0x138/0x258 [ 213.092549][ T6679] do_el0_svc+0x58/0x13c [ 213.093280][ T6679] el0_svc+0x78/0x1d0 [ 213.093925][ T6679] el0t_64_sync_handler+0xcc/0xe4 [ 213.094768][ T6679] el0t_64_sync+0x1a0/0x1a4 [ 213.096949][ T6679] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.099188][ T6679] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.333009][ T6682] loop1: detected capacity change from 0 to 32768 [ 213.392993][ T6682] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.394204][ T6682] CPU: 1 PID: 6682 Comm: syz.1.588 Not tainted syzkaller #0 [ 213.395430][ T6682] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 213.397088][ T6682] Call trace: [ 213.397651][ T6682] dump_backtrace+0x0/0x458 [ 213.398422][ T6682] show_stack+0x2c/0x3c [ 213.399084][ T6682] __dump_stack+0x30/0x40 [ 213.399804][ T6682] dump_stack_lvl+0xf4/0x15c [ 213.400556][ T6682] dump_stack+0x1c/0x5c [ 213.401336][ T6682] sysfs_create_dir_ns+0x244/0x264 [ 213.402192][ T6682] kobject_add_internal+0x5ac/0xc3c [ 213.403056][ T6682] kobject_init_and_add+0x124/0x190 [ 213.403920][ T6682] gfs2_sys_fs_add+0x200/0x41c [ 213.404709][ T6682] gfs2_fill_super+0xddc/0x1a18 [ 213.405506][ T6682] get_tree_bdev+0x358/0x544 [ 213.406254][ T6682] gfs2_get_tree+0x54/0x1b4 [ 213.407020][ T6682] vfs_get_tree+0x90/0x274 [ 213.407730][ T6682] do_new_mount+0x228/0x810 [ 213.408561][ T6682] path_mount+0x5bc/0x1008 [ 213.409379][ T6682] __arm64_sys_mount+0x514/0x5f0 [ 213.410260][ T6682] invoke_syscall+0x98/0x2b0 [ 213.411079][ T6682] el0_svc_common+0x138/0x258 [ 213.411901][ T6682] do_el0_svc+0x58/0x13c [ 213.412588][ T6682] el0_svc+0x78/0x1d0 [ 213.413252][ T6682] el0t_64_sync_handler+0xcc/0xe4 [ 213.414147][ T6682] el0t_64_sync+0x1a0/0x1a4 [ 213.415092][ T6682] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.417249][ T6682] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.562033][ T6685] loop1: detected capacity change from 0 to 32768 [ 213.621860][ T6685] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.623101][ T6685] CPU: 1 PID: 6685 Comm: syz.1.589 Not tainted syzkaller #0 [ 213.624326][ T6685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 213.626132][ T6685] Call trace: [ 213.626683][ T6685] dump_backtrace+0x0/0x458 [ 213.627408][ T6685] show_stack+0x2c/0x3c [ 213.628097][ T6685] __dump_stack+0x30/0x40 [ 213.628776][ T6685] dump_stack_lvl+0xf4/0x15c [ 213.629562][ T6685] dump_stack+0x1c/0x5c [ 213.630294][ T6685] sysfs_create_dir_ns+0x244/0x264 [ 213.631196][ T6685] kobject_add_internal+0x5ac/0xc3c [ 213.632106][ T6685] kobject_init_and_add+0x124/0x190 [ 213.632958][ T6685] gfs2_sys_fs_add+0x200/0x41c [ 213.633788][ T6685] gfs2_fill_super+0xddc/0x1a18 [ 213.634616][ T6685] get_tree_bdev+0x358/0x544 [ 213.635443][ T6685] gfs2_get_tree+0x54/0x1b4 [ 213.636221][ T6685] vfs_get_tree+0x90/0x274 [ 213.636963][ T6685] do_new_mount+0x228/0x810 [ 213.637717][ T6685] path_mount+0x5bc/0x1008 [ 213.638494][ T6685] __arm64_sys_mount+0x514/0x5f0 [ 213.639383][ T6685] invoke_syscall+0x98/0x2b0 [ 213.640440][ T6685] el0_svc_common+0x138/0x258 [ 213.641149][ T6685] do_el0_svc+0x58/0x13c [ 213.641867][ T6685] el0_svc+0x78/0x1d0 [ 213.642529][ T6685] el0t_64_sync_handler+0xcc/0xe4 [ 213.643329][ T6685] el0t_64_sync+0x1a0/0x1a4 [ 213.644336][ T6685] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.646478][ T6685] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.781545][ T6688] loop1: detected capacity change from 0 to 32768 [ 213.875753][ T6688] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.876906][ T6688] CPU: 0 PID: 6688 Comm: syz.1.590 Not tainted syzkaller #0 [ 213.878217][ T6688] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 213.880000][ T6688] Call trace: [ 213.880539][ T6688] dump_backtrace+0x0/0x458 [ 213.881268][ T6688] show_stack+0x2c/0x3c [ 213.881942][ T6688] __dump_stack+0x30/0x40 [ 213.882682][ T6688] dump_stack_lvl+0xf4/0x15c [ 213.883476][ T6688] dump_stack+0x1c/0x5c [ 213.884223][ T6688] sysfs_create_dir_ns+0x244/0x264 [ 213.885091][ T6688] kobject_add_internal+0x5ac/0xc3c [ 213.885938][ T6688] kobject_init_and_add+0x124/0x190 [ 213.886813][ T6688] gfs2_sys_fs_add+0x200/0x41c [ 213.887591][ T6688] gfs2_fill_super+0xddc/0x1a18 [ 213.888350][ T6688] get_tree_bdev+0x358/0x544 [ 213.889063][ T6688] gfs2_get_tree+0x54/0x1b4 [ 213.889781][ T6688] vfs_get_tree+0x90/0x274 [ 213.890530][ T6688] do_new_mount+0x228/0x810 [ 213.891255][ T6688] path_mount+0x5bc/0x1008 [ 213.891981][ T6688] __arm64_sys_mount+0x514/0x5f0 [ 213.892774][ T6688] invoke_syscall+0x98/0x2b0 [ 213.893556][ T6688] el0_svc_common+0x138/0x258 [ 213.894379][ T6688] do_el0_svc+0x58/0x13c [ 213.895087][ T6688] el0_svc+0x78/0x1d0 [ 213.895756][ T6688] el0t_64_sync_handler+0xcc/0xe4 [ 213.896587][ T6688] el0t_64_sync+0x1a0/0x1a4 [ 213.898703][ T6688] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.900858][ T6688] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.034455][ T6691] loop1: detected capacity change from 0 to 32768 [ 214.077509][ T6691] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.078730][ T6691] CPU: 0 PID: 6691 Comm: syz.1.591 Not tainted syzkaller #0 [ 214.079939][ T6691] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.081587][ T6691] Call trace: [ 214.082105][ T6691] dump_backtrace+0x0/0x458 [ 214.082877][ T6691] show_stack+0x2c/0x3c [ 214.083569][ T6691] __dump_stack+0x30/0x40 [ 214.084267][ T6691] dump_stack_lvl+0xf4/0x15c [ 214.084971][ T6691] dump_stack+0x1c/0x5c [ 214.085670][ T6691] sysfs_create_dir_ns+0x244/0x264 [ 214.086597][ T6691] kobject_add_internal+0x5ac/0xc3c [ 214.087442][ T6691] kobject_init_and_add+0x124/0x190 [ 214.088282][ T6691] gfs2_sys_fs_add+0x200/0x41c [ 214.089066][ T6691] gfs2_fill_super+0xddc/0x1a18 [ 214.089892][ T6691] get_tree_bdev+0x358/0x544 [ 214.090644][ T6691] gfs2_get_tree+0x54/0x1b4 [ 214.091370][ T6691] vfs_get_tree+0x90/0x274 [ 214.092129][ T6691] do_new_mount+0x228/0x810 [ 214.092901][ T6691] path_mount+0x5bc/0x1008 [ 214.093583][ T6691] __arm64_sys_mount+0x514/0x5f0 [ 214.094467][ T6691] invoke_syscall+0x98/0x2b0 [ 214.095252][ T6691] el0_svc_common+0x138/0x258 [ 214.096044][ T6691] do_el0_svc+0x58/0x13c [ 214.096751][ T6691] el0_svc+0x78/0x1d0 [ 214.097434][ T6691] el0t_64_sync_handler+0xcc/0xe4 [ 214.098228][ T6691] el0t_64_sync+0x1a0/0x1a4 [ 214.100788][ T6691] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.102980][ T6691] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.234048][ T6694] loop1: detected capacity change from 0 to 32768 [ 214.272513][ T6694] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.273736][ T6694] CPU: 0 PID: 6694 Comm: syz.1.592 Not tainted syzkaller #0 [ 214.274935][ T6694] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.276699][ T6694] Call trace: [ 214.277215][ T6694] dump_backtrace+0x0/0x458 [ 214.277961][ T6694] show_stack+0x2c/0x3c [ 214.278687][ T6694] __dump_stack+0x30/0x40 [ 214.279390][ T6694] dump_stack_lvl+0xf4/0x15c [ 214.280149][ T6694] dump_stack+0x1c/0x5c [ 214.280840][ T6694] sysfs_create_dir_ns+0x244/0x264 [ 214.281731][ T6694] kobject_add_internal+0x5ac/0xc3c [ 214.282663][ T6694] kobject_init_and_add+0x124/0x190 [ 214.283470][ T6694] gfs2_sys_fs_add+0x200/0x41c [ 214.284265][ T6694] gfs2_fill_super+0xddc/0x1a18 [ 214.285132][ T6694] get_tree_bdev+0x358/0x544 [ 214.285948][ T6694] gfs2_get_tree+0x54/0x1b4 [ 214.286694][ T6694] vfs_get_tree+0x90/0x274 [ 214.287429][ T6694] do_new_mount+0x228/0x810 [ 214.288192][ T6694] path_mount+0x5bc/0x1008 [ 214.288947][ T6694] __arm64_sys_mount+0x514/0x5f0 [ 214.289764][ T6694] invoke_syscall+0x98/0x2b0 [ 214.290521][ T6694] el0_svc_common+0x138/0x258 [ 214.291296][ T6694] do_el0_svc+0x58/0x13c [ 214.292015][ T6694] el0_svc+0x78/0x1d0 [ 214.292656][ T6694] el0t_64_sync_handler+0xcc/0xe4 [ 214.293423][ T6694] el0t_64_sync+0x1a0/0x1a4 [ 214.295537][ T6694] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.297593][ T6694] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.432675][ T6697] loop1: detected capacity change from 0 to 32768 [ 214.439753][ T6697] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.441090][ T6697] CPU: 0 PID: 6697 Comm: syz.1.593 Not tainted syzkaller #0 [ 214.442149][ T6697] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.443636][ T6697] Call trace: [ 214.444126][ T6697] dump_backtrace+0x0/0x458 [ 214.444891][ T6697] show_stack+0x2c/0x3c [ 214.445584][ T6697] __dump_stack+0x30/0x40 [ 214.446336][ T6697] dump_stack_lvl+0xf4/0x15c [ 214.447066][ T6697] dump_stack+0x1c/0x5c [ 214.447715][ T6697] sysfs_create_dir_ns+0x244/0x264 [ 214.448515][ T6697] kobject_add_internal+0x5ac/0xc3c [ 214.449338][ T6697] kobject_init_and_add+0x124/0x190 [ 214.450090][ T6697] gfs2_sys_fs_add+0x200/0x41c [ 214.450898][ T6697] gfs2_fill_super+0xddc/0x1a18 [ 214.451724][ T6697] get_tree_bdev+0x358/0x544 [ 214.452460][ T6697] gfs2_get_tree+0x54/0x1b4 [ 214.453218][ T6697] vfs_get_tree+0x90/0x274 [ 214.453928][ T6697] do_new_mount+0x228/0x810 [ 214.454667][ T6697] path_mount+0x5bc/0x1008 [ 214.455359][ T6697] __arm64_sys_mount+0x514/0x5f0 [ 214.456160][ T6697] invoke_syscall+0x98/0x2b0 [ 214.456867][ T6697] el0_svc_common+0x138/0x258 [ 214.457617][ T6697] do_el0_svc+0x58/0x13c [ 214.458268][ T6697] el0_svc+0x78/0x1d0 [ 214.458870][ T6697] el0t_64_sync_handler+0xcc/0xe4 [ 214.459670][ T6697] el0t_64_sync+0x1a0/0x1a4 [ 214.461866][ T6697] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.463789][ T6697] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.603608][ T6700] loop1: detected capacity change from 0 to 32768 [ 214.612713][ T6700] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.613788][ T6700] CPU: 0 PID: 6700 Comm: syz.1.594 Not tainted syzkaller #0 [ 214.615056][ T6700] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.616713][ T6700] Call trace: [ 214.617293][ T6700] dump_backtrace+0x0/0x458 [ 214.618047][ T6700] show_stack+0x2c/0x3c [ 214.618782][ T6700] __dump_stack+0x30/0x40 [ 214.619505][ T6700] dump_stack_lvl+0xf4/0x15c [ 214.620253][ T6700] dump_stack+0x1c/0x5c [ 214.620940][ T6700] sysfs_create_dir_ns+0x244/0x264 [ 214.621811][ T6700] kobject_add_internal+0x5ac/0xc3c [ 214.622696][ T6700] kobject_init_and_add+0x124/0x190 [ 214.623548][ T6700] gfs2_sys_fs_add+0x200/0x41c [ 214.624334][ T6700] gfs2_fill_super+0xddc/0x1a18 [ 214.625137][ T6700] get_tree_bdev+0x358/0x544 [ 214.625900][ T6700] gfs2_get_tree+0x54/0x1b4 [ 214.626664][ T6700] vfs_get_tree+0x90/0x274 [ 214.627416][ T6700] do_new_mount+0x228/0x810 [ 214.628170][ T6700] path_mount+0x5bc/0x1008 [ 214.628955][ T6700] __arm64_sys_mount+0x514/0x5f0 [ 214.629794][ T6700] invoke_syscall+0x98/0x2b0 [ 214.630641][ T6700] el0_svc_common+0x138/0x258 [ 214.631410][ T6700] do_el0_svc+0x58/0x13c [ 214.632112][ T6700] el0_svc+0x78/0x1d0 [ 214.632808][ T6700] el0t_64_sync_handler+0xcc/0xe4 [ 214.633618][ T6700] el0t_64_sync+0x1a0/0x1a4 [ 214.635751][ T6700] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.637895][ T6700] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.772854][ T6703] loop1: detected capacity change from 0 to 32768 [ 214.781148][ T6703] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.782366][ T6703] CPU: 0 PID: 6703 Comm: syz.1.595 Not tainted syzkaller #0 [ 214.783559][ T6703] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.785247][ T6703] Call trace: [ 214.785722][ T6703] dump_backtrace+0x0/0x458 [ 214.786487][ T6703] show_stack+0x2c/0x3c [ 214.787165][ T6703] __dump_stack+0x30/0x40 [ 214.787812][ T6703] dump_stack_lvl+0xf4/0x15c [ 214.788548][ T6703] dump_stack+0x1c/0x5c [ 214.789209][ T6703] sysfs_create_dir_ns+0x244/0x264 [ 214.789994][ T6703] kobject_add_internal+0x5ac/0xc3c [ 214.790790][ T6703] kobject_init_and_add+0x124/0x190 [ 214.791653][ T6703] gfs2_sys_fs_add+0x200/0x41c [ 214.792405][ T6703] gfs2_fill_super+0xddc/0x1a18 [ 214.793157][ T6703] get_tree_bdev+0x358/0x544 [ 214.793939][ T6703] gfs2_get_tree+0x54/0x1b4 [ 214.794683][ T6703] vfs_get_tree+0x90/0x274 [ 214.795343][ T6703] do_new_mount+0x228/0x810 [ 214.796016][ T6703] path_mount+0x5bc/0x1008 [ 214.796770][ T6703] __arm64_sys_mount+0x514/0x5f0 [ 214.797583][ T6703] invoke_syscall+0x98/0x2b0 [ 214.798364][ T6703] el0_svc_common+0x138/0x258 [ 214.799153][ T6703] do_el0_svc+0x58/0x13c [ 214.799847][ T6703] el0_svc+0x78/0x1d0 [ 214.800499][ T6703] el0t_64_sync_handler+0xcc/0xe4 [ 214.801337][ T6703] el0t_64_sync+0x1a0/0x1a4 [ 214.802250][ T6703] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.804357][ T6703] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.947094][ T6706] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.948473][ T6706] CPU: 0 PID: 6706 Comm: syz.1.596 Not tainted syzkaller #0 [ 214.949667][ T6706] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 214.951309][ T6706] Call trace: [ 214.951801][ T6706] dump_backtrace+0x0/0x458 [ 214.952513][ T6706] show_stack+0x2c/0x3c [ 214.953211][ T6706] __dump_stack+0x30/0x40 [ 214.954023][ T6706] dump_stack_lvl+0xf4/0x15c [ 214.954818][ T6706] dump_stack+0x1c/0x5c [ 214.955624][ T6706] sysfs_create_dir_ns+0x244/0x264 [ 214.956500][ T6706] kobject_add_internal+0x5ac/0xc3c [ 214.957356][ T6706] kobject_init_and_add+0x124/0x190 [ 214.958264][ T6706] gfs2_sys_fs_add+0x200/0x41c [ 214.959044][ T6706] gfs2_fill_super+0xddc/0x1a18 [ 214.959849][ T6706] get_tree_bdev+0x358/0x544 [ 214.960593][ T6706] gfs2_get_tree+0x54/0x1b4 [ 214.961303][ T6706] vfs_get_tree+0x90/0x274 [ 214.962039][ T6706] do_new_mount+0x228/0x810 [ 214.962758][ T6706] path_mount+0x5bc/0x1008 [ 214.963486][ T6706] __arm64_sys_mount+0x514/0x5f0 [ 214.964338][ T6706] invoke_syscall+0x98/0x2b0 [ 214.965115][ T6706] el0_svc_common+0x138/0x258 [ 214.965925][ T6706] do_el0_svc+0x58/0x13c [ 214.966665][ T6706] el0_svc+0x78/0x1d0 [ 214.967283][ T6706] el0t_64_sync_handler+0xcc/0xe4 [ 214.968073][ T6706] el0t_64_sync+0x1a0/0x1a4 [ 214.968993][ T6706] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.971214][ T6706] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.261728][ T6709] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.262863][ T6709] CPU: 1 PID: 6709 Comm: syz.1.597 Not tainted syzkaller #0 [ 215.264087][ T6709] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 215.265751][ T6709] Call trace: [ 215.266351][ T6709] dump_backtrace+0x0/0x458 [ 215.267126][ T6709] show_stack+0x2c/0x3c [ 215.267863][ T6709] __dump_stack+0x30/0x40 [ 215.268606][ T6709] dump_stack_lvl+0xf4/0x15c [ 215.269411][ T6709] dump_stack+0x1c/0x5c [ 215.270120][ T6709] sysfs_create_dir_ns+0x244/0x264 [ 215.270958][ T6709] kobject_add_internal+0x5ac/0xc3c [ 215.271841][ T6709] kobject_init_and_add+0x124/0x190 [ 215.272647][ T6709] gfs2_sys_fs_add+0x200/0x41c [ 215.273429][ T6709] gfs2_fill_super+0xddc/0x1a18 [ 215.274253][ T6709] get_tree_bdev+0x358/0x544 [ 215.275007][ T6709] gfs2_get_tree+0x54/0x1b4 [ 215.275762][ T6709] vfs_get_tree+0x90/0x274 [ 215.276490][ T6709] do_new_mount+0x228/0x810 [ 215.277190][ T6709] path_mount+0x5bc/0x1008 [ 215.284443][ T6709] __arm64_sys_mount+0x514/0x5f0 [ 215.285263][ T6709] invoke_syscall+0x98/0x2b0 [ 215.286013][ T6709] el0_svc_common+0x138/0x258 [ 215.286716][ T6709] do_el0_svc+0x58/0x13c [ 215.287419][ T6709] el0_svc+0x78/0x1d0 [ 215.288154][ T6709] el0t_64_sync_handler+0xcc/0xe4 [ 215.289002][ T6709] el0t_64_sync+0x1a0/0x1a4 [ 215.292018][ T6709] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.294222][ T6709] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.505433][ T6712] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.506645][ T6712] CPU: 1 PID: 6712 Comm: syz.1.598 Not tainted syzkaller #0 [ 215.508044][ T6712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 215.509879][ T6712] Call trace: [ 215.510469][ T6712] dump_backtrace+0x0/0x458 [ 215.511274][ T6712] show_stack+0x2c/0x3c [ 215.511957][ T6712] __dump_stack+0x30/0x40 [ 215.512679][ T6712] dump_stack_lvl+0xf4/0x15c [ 215.513422][ T6712] dump_stack+0x1c/0x5c [ 215.514125][ T6712] sysfs_create_dir_ns+0x244/0x264 [ 215.515022][ T6712] kobject_add_internal+0x5ac/0xc3c [ 215.515906][ T6712] kobject_init_and_add+0x124/0x190 [ 215.516729][ T6712] gfs2_sys_fs_add+0x200/0x41c [ 215.517482][ T6712] gfs2_fill_super+0xddc/0x1a18 [ 215.518237][ T6712] get_tree_bdev+0x358/0x544 [ 215.519039][ T6712] gfs2_get_tree+0x54/0x1b4 [ 215.519784][ T6712] vfs_get_tree+0x90/0x274 [ 215.520555][ T6712] do_new_mount+0x228/0x810 [ 215.521346][ T6712] path_mount+0x5bc/0x1008 [ 215.522125][ T6712] __arm64_sys_mount+0x514/0x5f0 [ 215.522962][ T6712] invoke_syscall+0x98/0x2b0 [ 215.523750][ T6712] el0_svc_common+0x138/0x258 [ 215.524538][ T6712] do_el0_svc+0x58/0x13c [ 215.525261][ T6712] el0_svc+0x78/0x1d0 [ 215.525919][ T6712] el0t_64_sync_handler+0xcc/0xe4 [ 215.526806][ T6712] el0t_64_sync+0x1a0/0x1a4 [ 215.528533][ T6712] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.530863][ T6712] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.677180][ T6715] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.678395][ T6715] CPU: 0 PID: 6715 Comm: syz.1.599 Not tainted syzkaller #0 [ 215.679643][ T6715] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 215.681208][ T6715] Call trace: [ 215.681691][ T6715] dump_backtrace+0x0/0x458 [ 215.682437][ T6715] show_stack+0x2c/0x3c [ 215.683069][ T6715] __dump_stack+0x30/0x40 [ 215.683754][ T6715] dump_stack_lvl+0xf4/0x15c [ 215.684524][ T6715] dump_stack+0x1c/0x5c [ 215.685256][ T6715] sysfs_create_dir_ns+0x244/0x264 [ 215.686096][ T6715] kobject_add_internal+0x5ac/0xc3c [ 215.687032][ T6715] kobject_init_and_add+0x124/0x190 [ 215.687855][ T6715] gfs2_sys_fs_add+0x200/0x41c [ 215.688711][ T6715] gfs2_fill_super+0xddc/0x1a18 [ 215.689539][ T6715] get_tree_bdev+0x358/0x544 [ 215.690294][ T6715] gfs2_get_tree+0x54/0x1b4 [ 215.691104][ T6715] vfs_get_tree+0x90/0x274 [ 215.691892][ T6715] do_new_mount+0x228/0x810 [ 215.692682][ T6715] path_mount+0x5bc/0x1008 [ 215.693468][ T6715] __arm64_sys_mount+0x514/0x5f0 [ 215.694304][ T6715] invoke_syscall+0x98/0x2b0 [ 215.695096][ T6715] el0_svc_common+0x138/0x258 [ 215.695892][ T6715] do_el0_svc+0x58/0x13c [ 215.696551][ T6715] el0_svc+0x78/0x1d0 [ 215.697201][ T6715] el0t_64_sync_handler+0xcc/0xe4 [ 215.698040][ T6715] el0t_64_sync+0x1a0/0x1a4 [ 215.701531][ T6715] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.703628][ T6715] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.874903][ T6718] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.876093][ T6718] CPU: 0 PID: 6718 Comm: syz.1.600 Not tainted syzkaller #0 [ 215.877250][ T6718] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 215.878879][ T6718] Call trace: [ 215.879391][ T6718] dump_backtrace+0x0/0x458 [ 215.880122][ T6718] show_stack+0x2c/0x3c [ 215.880834][ T6718] __dump_stack+0x30/0x40 [ 215.881544][ T6718] dump_stack_lvl+0xf4/0x15c [ 215.882258][ T6718] dump_stack+0x1c/0x5c [ 215.882933][ T6718] sysfs_create_dir_ns+0x244/0x264 [ 215.883745][ T6718] kobject_add_internal+0x5ac/0xc3c [ 215.884573][ T6718] kobject_init_and_add+0x124/0x190 [ 215.885383][ T6718] gfs2_sys_fs_add+0x200/0x41c [ 215.886291][ T6718] gfs2_fill_super+0xddc/0x1a18 [ 215.887122][ T6718] get_tree_bdev+0x358/0x544 [ 215.887864][ T6718] gfs2_get_tree+0x54/0x1b4 [ 215.888542][ T6718] vfs_get_tree+0x90/0x274 [ 215.889208][ T6718] do_new_mount+0x228/0x810 [ 215.889925][ T6718] path_mount+0x5bc/0x1008 [ 215.890612][ T6718] __arm64_sys_mount+0x514/0x5f0 [ 215.891398][ T6718] invoke_syscall+0x98/0x2b0 [ 215.892083][ T6718] el0_svc_common+0x138/0x258 [ 215.892802][ T6718] do_el0_svc+0x58/0x13c [ 215.893490][ T6718] el0_svc+0x78/0x1d0 [ 215.894130][ T6718] el0t_64_sync_handler+0xcc/0xe4 [ 215.895076][ T6718] el0t_64_sync+0x1a0/0x1a4 [ 215.897287][ T6718] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.899351][ T6718] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.042053][ T6721] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.043287][ T6721] CPU: 1 PID: 6721 Comm: syz.1.601 Not tainted syzkaller #0 [ 216.044491][ T6721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 216.046119][ T6721] Call trace: [ 216.046603][ T6721] dump_backtrace+0x0/0x458 [ 216.047383][ T6721] show_stack+0x2c/0x3c [ 216.048023][ T6721] __dump_stack+0x30/0x40 [ 216.048653][ T6721] dump_stack_lvl+0xf4/0x15c [ 216.049417][ T6721] dump_stack+0x1c/0x5c [ 216.049993][ T6721] sysfs_create_dir_ns+0x244/0x264 [ 216.050756][ T6721] kobject_add_internal+0x5ac/0xc3c [ 216.051673][ T6721] kobject_init_and_add+0x124/0x190 [ 216.052497][ T6721] gfs2_sys_fs_add+0x200/0x41c [ 216.053251][ T6721] gfs2_fill_super+0xddc/0x1a18 [ 216.054053][ T6721] get_tree_bdev+0x358/0x544 [ 216.054775][ T6721] gfs2_get_tree+0x54/0x1b4 [ 216.055528][ T6721] vfs_get_tree+0x90/0x274 [ 216.056369][ T6721] do_new_mount+0x228/0x810 [ 216.057141][ T6721] path_mount+0x5bc/0x1008 [ 216.057923][ T6721] __arm64_sys_mount+0x514/0x5f0 [ 216.058796][ T6721] invoke_syscall+0x98/0x2b0 [ 216.059619][ T6721] el0_svc_common+0x138/0x258 [ 216.060405][ T6721] do_el0_svc+0x58/0x13c [ 216.061094][ T6721] el0_svc+0x78/0x1d0 [ 216.061735][ T6721] el0t_64_sync_handler+0xcc/0xe4 [ 216.062576][ T6721] el0t_64_sync+0x1a0/0x1a4 [ 216.063567][ T6721] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.065714][ T6721] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.209507][ T6724] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.210704][ T6724] CPU: 0 PID: 6724 Comm: syz.1.602 Not tainted syzkaller #0 [ 216.211987][ T6724] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 216.213643][ T6724] Call trace: [ 216.214214][ T6724] dump_backtrace+0x0/0x458 [ 216.215059][ T6724] show_stack+0x2c/0x3c [ 216.215749][ T6724] __dump_stack+0x30/0x40 [ 216.216458][ T6724] dump_stack_lvl+0xf4/0x15c [ 216.217192][ T6724] dump_stack+0x1c/0x5c [ 216.217829][ T6724] sysfs_create_dir_ns+0x244/0x264 [ 216.218659][ T6724] kobject_add_internal+0x5ac/0xc3c [ 216.219564][ T6724] kobject_init_and_add+0x124/0x190 [ 216.220491][ T6724] gfs2_sys_fs_add+0x200/0x41c [ 216.221315][ T6724] gfs2_fill_super+0xddc/0x1a18 [ 216.222192][ T6724] get_tree_bdev+0x358/0x544 [ 216.222916][ T6724] gfs2_get_tree+0x54/0x1b4 [ 216.223649][ T6724] vfs_get_tree+0x90/0x274 [ 216.224393][ T6724] do_new_mount+0x228/0x810 [ 216.225177][ T6724] path_mount+0x5bc/0x1008 [ 216.225896][ T6724] __arm64_sys_mount+0x514/0x5f0 [ 216.226741][ T6724] invoke_syscall+0x98/0x2b0 [ 216.227493][ T6724] el0_svc_common+0x138/0x258 [ 216.228334][ T6724] do_el0_svc+0x58/0x13c [ 216.229056][ T6724] el0_svc+0x78/0x1d0 [ 216.229748][ T6724] el0t_64_sync_handler+0xcc/0xe4 [ 216.230574][ T6724] el0t_64_sync+0x1a0/0x1a4 [ 216.234176][ T6724] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.236059][ T6724] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.415652][ T6727] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.416846][ T6727] CPU: 0 PID: 6727 Comm: syz.1.603 Not tainted syzkaller #0 [ 216.418055][ T6727] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 216.419548][ T6727] Call trace: [ 216.420044][ T6727] dump_backtrace+0x0/0x458 [ 216.420791][ T6727] show_stack+0x2c/0x3c [ 216.421515][ T6727] __dump_stack+0x30/0x40 [ 216.422266][ T6727] dump_stack_lvl+0xf4/0x15c [ 216.423089][ T6727] dump_stack+0x1c/0x5c [ 216.423850][ T6727] sysfs_create_dir_ns+0x244/0x264 [ 216.424718][ T6727] kobject_add_internal+0x5ac/0xc3c [ 216.425624][ T6727] kobject_init_and_add+0x124/0x190 [ 216.426500][ T6727] gfs2_sys_fs_add+0x200/0x41c [ 216.427262][ T6727] gfs2_fill_super+0xddc/0x1a18 [ 216.428049][ T6727] get_tree_bdev+0x358/0x544 [ 216.428812][ T6727] gfs2_get_tree+0x54/0x1b4 [ 216.429546][ T6727] vfs_get_tree+0x90/0x274 [ 216.430305][ T6727] do_new_mount+0x228/0x810 [ 216.431006][ T6727] path_mount+0x5bc/0x1008 [ 216.431737][ T6727] __arm64_sys_mount+0x514/0x5f0 [ 216.432578][ T6727] invoke_syscall+0x98/0x2b0 [ 216.433346][ T6727] el0_svc_common+0x138/0x258 [ 216.434142][ T6727] do_el0_svc+0x58/0x13c [ 216.434836][ T6727] el0_svc+0x78/0x1d0 [ 216.435439][ T6727] el0t_64_sync_handler+0xcc/0xe4 [ 216.436251][ T6727] el0t_64_sync+0x1a0/0x1a4 [ 216.438486][ T6727] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.440845][ T6727] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.705124][ T6730] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.706339][ T6730] CPU: 0 PID: 6730 Comm: syz.1.604 Not tainted syzkaller #0 [ 216.707536][ T6730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 216.709200][ T6730] Call trace: [ 216.709752][ T6730] dump_backtrace+0x0/0x458 [ 216.710454][ T6730] show_stack+0x2c/0x3c [ 216.711154][ T6730] __dump_stack+0x30/0x40 [ 216.711928][ T6730] dump_stack_lvl+0xf4/0x15c [ 216.712676][ T6730] dump_stack+0x1c/0x5c [ 216.713316][ T6730] sysfs_create_dir_ns+0x244/0x264 [ 216.714128][ T6730] kobject_add_internal+0x5ac/0xc3c [ 216.714981][ T6730] kobject_init_and_add+0x124/0x190 [ 216.715845][ T6730] gfs2_sys_fs_add+0x200/0x41c [ 216.716552][ T6730] gfs2_fill_super+0xddc/0x1a18 [ 216.717293][ T6730] get_tree_bdev+0x358/0x544 [ 216.718049][ T6730] gfs2_get_tree+0x54/0x1b4 [ 216.718846][ T6730] vfs_get_tree+0x90/0x274 [ 216.719536][ T6730] do_new_mount+0x228/0x810 [ 216.720327][ T6730] path_mount+0x5bc/0x1008 [ 216.721061][ T6730] __arm64_sys_mount+0x514/0x5f0 [ 216.721877][ T6730] invoke_syscall+0x98/0x2b0 [ 216.722639][ T6730] el0_svc_common+0x138/0x258 [ 216.723394][ T6730] do_el0_svc+0x58/0x13c [ 216.724084][ T6730] el0_svc+0x78/0x1d0 [ 216.724803][ T6730] el0t_64_sync_handler+0xcc/0xe4 [ 216.725607][ T6730] el0t_64_sync+0x1a0/0x1a4 [ 216.727931][ T6730] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.730048][ T6730] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.912886][ T6733] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.914014][ T6733] CPU: 0 PID: 6733 Comm: syz.1.605 Not tainted syzkaller #0 [ 216.915242][ T6733] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 216.916756][ T6733] Call trace: [ 216.917292][ T6733] dump_backtrace+0x0/0x458 [ 216.918025][ T6733] show_stack+0x2c/0x3c [ 216.918671][ T6733] __dump_stack+0x30/0x40 [ 216.919382][ T6733] dump_stack_lvl+0xf4/0x15c [ 216.920120][ T6733] dump_stack+0x1c/0x5c [ 216.920794][ T6733] sysfs_create_dir_ns+0x244/0x264 [ 216.921592][ T6733] kobject_add_internal+0x5ac/0xc3c [ 216.922569][ T6733] kobject_init_and_add+0x124/0x190 [ 216.923510][ T6733] gfs2_sys_fs_add+0x200/0x41c [ 216.924279][ T6733] gfs2_fill_super+0xddc/0x1a18 [ 216.925151][ T6733] get_tree_bdev+0x358/0x544 [ 216.925928][ T6733] gfs2_get_tree+0x54/0x1b4 [ 216.926714][ T6733] vfs_get_tree+0x90/0x274 [ 216.927485][ T6733] do_new_mount+0x228/0x810 [ 216.928200][ T6733] path_mount+0x5bc/0x1008 [ 216.928957][ T6733] __arm64_sys_mount+0x514/0x5f0 [ 216.929779][ T6733] invoke_syscall+0x98/0x2b0 [ 216.930573][ T6733] el0_svc_common+0x138/0x258 [ 216.931317][ T6733] do_el0_svc+0x58/0x13c [ 216.932066][ T6733] el0_svc+0x78/0x1d0 [ 216.932744][ T6733] el0t_64_sync_handler+0xcc/0xe4 [ 216.933686][ T6733] el0t_64_sync+0x1a0/0x1a4 [ 216.935917][ T6733] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.937916][ T6733] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.111669][ T6736] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.112953][ T6736] CPU: 0 PID: 6736 Comm: syz.1.606 Not tainted syzkaller #0 [ 217.114131][ T6736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.115764][ T6736] Call trace: [ 217.116317][ T6736] dump_backtrace+0x0/0x458 [ 217.117012][ T6736] show_stack+0x2c/0x3c [ 217.117698][ T6736] __dump_stack+0x30/0x40 [ 217.118368][ T6736] dump_stack_lvl+0xf4/0x15c [ 217.119109][ T6736] dump_stack+0x1c/0x5c [ 217.119813][ T6736] sysfs_create_dir_ns+0x244/0x264 [ 217.120635][ T6736] kobject_add_internal+0x5ac/0xc3c [ 217.121485][ T6736] kobject_init_and_add+0x124/0x190 [ 217.122297][ T6736] gfs2_sys_fs_add+0x200/0x41c [ 217.123074][ T6736] gfs2_fill_super+0xddc/0x1a18 [ 217.123854][ T6736] get_tree_bdev+0x358/0x544 [ 217.124613][ T6736] gfs2_get_tree+0x54/0x1b4 [ 217.125370][ T6736] vfs_get_tree+0x90/0x274 [ 217.126114][ T6736] do_new_mount+0x228/0x810 [ 217.126910][ T6736] path_mount+0x5bc/0x1008 [ 217.127664][ T6736] __arm64_sys_mount+0x514/0x5f0 [ 217.128482][ T6736] invoke_syscall+0x98/0x2b0 [ 217.129274][ T6736] el0_svc_common+0x138/0x258 [ 217.130005][ T6736] do_el0_svc+0x58/0x13c [ 217.130683][ T6736] el0_svc+0x78/0x1d0 [ 217.131346][ T6736] el0t_64_sync_handler+0xcc/0xe4 [ 217.132175][ T6736] el0t_64_sync+0x1a0/0x1a4 [ 217.134650][ T6736] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.136863][ T6736] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.282775][ T6739] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.284042][ T6739] CPU: 1 PID: 6739 Comm: syz.1.607 Not tainted syzkaller #0 [ 217.285286][ T6739] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.286948][ T6739] Call trace: [ 217.287428][ T6739] dump_backtrace+0x0/0x458 [ 217.288156][ T6739] show_stack+0x2c/0x3c [ 217.288807][ T6739] __dump_stack+0x30/0x40 [ 217.289496][ T6739] dump_stack_lvl+0xf4/0x15c [ 217.290242][ T6739] dump_stack+0x1c/0x5c [ 217.290920][ T6739] sysfs_create_dir_ns+0x244/0x264 [ 217.291894][ T6739] kobject_add_internal+0x5ac/0xc3c [ 217.292776][ T6739] kobject_init_and_add+0x124/0x190 [ 217.293628][ T6739] gfs2_sys_fs_add+0x200/0x41c [ 217.294427][ T6739] gfs2_fill_super+0xddc/0x1a18 [ 217.295230][ T6739] get_tree_bdev+0x358/0x544 [ 217.295937][ T6739] gfs2_get_tree+0x54/0x1b4 [ 217.296630][ T6739] vfs_get_tree+0x90/0x274 [ 217.297403][ T6739] do_new_mount+0x228/0x810 [ 217.298158][ T6739] path_mount+0x5bc/0x1008 [ 217.298912][ T6739] __arm64_sys_mount+0x514/0x5f0 [ 217.299745][ T6739] invoke_syscall+0x98/0x2b0 [ 217.300535][ T6739] el0_svc_common+0x138/0x258 [ 217.301268][ T6739] do_el0_svc+0x58/0x13c [ 217.301987][ T6739] el0_svc+0x78/0x1d0 [ 217.302643][ T6739] el0t_64_sync_handler+0xcc/0xe4 [ 217.303460][ T6739] el0t_64_sync+0x1a0/0x1a4 [ 217.304484][ T6739] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.306587][ T6739] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.447661][ T6742] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.448959][ T6742] CPU: 0 PID: 6742 Comm: syz.1.608 Not tainted syzkaller #0 [ 217.450245][ T6742] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.451916][ T6742] Call trace: [ 217.452470][ T6742] dump_backtrace+0x0/0x458 [ 217.453253][ T6742] show_stack+0x2c/0x3c [ 217.453957][ T6742] __dump_stack+0x30/0x40 [ 217.454662][ T6742] dump_stack_lvl+0xf4/0x15c [ 217.455497][ T6742] dump_stack+0x1c/0x5c [ 217.456225][ T6742] sysfs_create_dir_ns+0x244/0x264 [ 217.457097][ T6742] kobject_add_internal+0x5ac/0xc3c [ 217.458086][ T6742] kobject_init_and_add+0x124/0x190 [ 217.458961][ T6742] gfs2_sys_fs_add+0x200/0x41c [ 217.459798][ T6742] gfs2_fill_super+0xddc/0x1a18 [ 217.460647][ T6742] get_tree_bdev+0x358/0x544 [ 217.461425][ T6742] gfs2_get_tree+0x54/0x1b4 [ 217.462168][ T6742] vfs_get_tree+0x90/0x274 [ 217.462911][ T6742] do_new_mount+0x228/0x810 [ 217.463638][ T6742] path_mount+0x5bc/0x1008 [ 217.464366][ T6742] __arm64_sys_mount+0x514/0x5f0 [ 217.465214][ T6742] invoke_syscall+0x98/0x2b0 [ 217.465999][ T6742] el0_svc_common+0x138/0x258 [ 217.466748][ T6742] do_el0_svc+0x58/0x13c [ 217.467404][ T6742] el0_svc+0x78/0x1d0 [ 217.468059][ T6742] el0t_64_sync_handler+0xcc/0xe4 [ 217.468853][ T6742] el0t_64_sync+0x1a0/0x1a4 [ 217.472895][ T6742] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.475040][ T6742] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.651917][ T6745] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.653116][ T6745] CPU: 1 PID: 6745 Comm: syz.1.609 Not tainted syzkaller #0 [ 217.654403][ T6745] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.656041][ T6745] Call trace: [ 217.656576][ T6745] dump_backtrace+0x0/0x458 [ 217.657282][ T6745] show_stack+0x2c/0x3c [ 217.657979][ T6745] __dump_stack+0x30/0x40 [ 217.658612][ T6745] dump_stack_lvl+0xf4/0x15c [ 217.659422][ T6745] dump_stack+0x1c/0x5c [ 217.660051][ T6745] sysfs_create_dir_ns+0x244/0x264 [ 217.660924][ T6745] kobject_add_internal+0x5ac/0xc3c [ 217.661910][ T6745] kobject_init_and_add+0x124/0x190 [ 217.662724][ T6745] gfs2_sys_fs_add+0x200/0x41c [ 217.663457][ T6745] gfs2_fill_super+0xddc/0x1a18 [ 217.664288][ T6745] get_tree_bdev+0x358/0x544 [ 217.665053][ T6745] gfs2_get_tree+0x54/0x1b4 [ 217.665833][ T6745] vfs_get_tree+0x90/0x274 [ 217.666569][ T6745] do_new_mount+0x228/0x810 [ 217.667347][ T6745] path_mount+0x5bc/0x1008 [ 217.668073][ T6745] __arm64_sys_mount+0x514/0x5f0 [ 217.668918][ T6745] invoke_syscall+0x98/0x2b0 [ 217.669697][ T6745] el0_svc_common+0x138/0x258 [ 217.670497][ T6745] do_el0_svc+0x58/0x13c [ 217.671209][ T6745] el0_svc+0x78/0x1d0 [ 217.671860][ T6745] el0t_64_sync_handler+0xcc/0xe4 [ 217.672669][ T6745] el0t_64_sync+0x1a0/0x1a4 [ 217.674140][ T6745] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.676283][ T6745] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.822441][ T6748] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.823668][ T6748] CPU: 0 PID: 6748 Comm: syz.1.610 Not tainted syzkaller #0 [ 217.824975][ T6748] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.826667][ T6748] Call trace: [ 217.827236][ T6748] dump_backtrace+0x0/0x458 [ 217.828010][ T6748] show_stack+0x2c/0x3c [ 217.828640][ T6748] __dump_stack+0x30/0x40 [ 217.829369][ T6748] dump_stack_lvl+0xf4/0x15c [ 217.830114][ T6748] dump_stack+0x1c/0x5c [ 217.830833][ T6748] sysfs_create_dir_ns+0x244/0x264 [ 217.831621][ T6748] kobject_add_internal+0x5ac/0xc3c [ 217.832546][ T6748] kobject_init_and_add+0x124/0x190 [ 217.833391][ T6748] gfs2_sys_fs_add+0x200/0x41c [ 217.834113][ T6748] gfs2_fill_super+0xddc/0x1a18 [ 217.834970][ T6748] get_tree_bdev+0x358/0x544 [ 217.835682][ T6748] gfs2_get_tree+0x54/0x1b4 [ 217.836454][ T6748] vfs_get_tree+0x90/0x274 [ 217.837253][ T6748] do_new_mount+0x228/0x810 [ 217.838072][ T6748] path_mount+0x5bc/0x1008 [ 217.838921][ T6748] __arm64_sys_mount+0x514/0x5f0 [ 217.839772][ T6748] invoke_syscall+0x98/0x2b0 [ 217.840555][ T6748] el0_svc_common+0x138/0x258 [ 217.841347][ T6748] do_el0_svc+0x58/0x13c [ 217.842081][ T6748] el0_svc+0x78/0x1d0 [ 217.842856][ T6748] el0t_64_sync_handler+0xcc/0xe4 [ 217.843665][ T6748] el0t_64_sync+0x1a0/0x1a4 [ 217.844608][ T6748] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.846769][ T6748] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:37 executed programs: 597 [ 217.978236][ T6751] set_capacity_and_notify: 15 callbacks suppressed [ 217.978247][ T6751] loop1: detected capacity change from 0 to 32768 [ 217.987955][ T6751] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.989258][ T6751] CPU: 1 PID: 6751 Comm: syz.1.611 Not tainted syzkaller #0 [ 217.990471][ T6751] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 217.992046][ T6751] Call trace: [ 217.992508][ T6751] dump_backtrace+0x0/0x458 [ 217.993260][ T6751] show_stack+0x2c/0x3c [ 217.993868][ T6751] __dump_stack+0x30/0x40 [ 217.994574][ T6751] dump_stack_lvl+0xf4/0x15c [ 217.995365][ T6751] dump_stack+0x1c/0x5c [ 217.996035][ T6751] sysfs_create_dir_ns+0x244/0x264 [ 217.996850][ T6751] kobject_add_internal+0x5ac/0xc3c [ 217.997864][ T6751] kobject_init_and_add+0x124/0x190 [ 217.998730][ T6751] gfs2_sys_fs_add+0x200/0x41c [ 217.999549][ T6751] gfs2_fill_super+0xddc/0x1a18 [ 218.000330][ T6751] get_tree_bdev+0x358/0x544 [ 218.001096][ T6751] gfs2_get_tree+0x54/0x1b4 [ 218.001765][ T6751] vfs_get_tree+0x90/0x274 [ 218.002539][ T6751] do_new_mount+0x228/0x810 [ 218.003342][ T6751] path_mount+0x5bc/0x1008 [ 218.004089][ T6751] __arm64_sys_mount+0x514/0x5f0 [ 218.004905][ T6751] invoke_syscall+0x98/0x2b0 [ 218.005666][ T6751] el0_svc_common+0x138/0x258 [ 218.006456][ T6751] do_el0_svc+0x58/0x13c [ 218.007202][ T6751] el0_svc+0x78/0x1d0 [ 218.007844][ T6751] el0t_64_sync_handler+0xcc/0xe4 [ 218.008637][ T6751] el0t_64_sync+0x1a0/0x1a4 [ 218.012273][ T6751] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.014409][ T6751] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.157827][ T6754] loop1: detected capacity change from 0 to 32768 [ 218.163257][ T6754] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.164497][ T6754] CPU: 1 PID: 6754 Comm: syz.1.612 Not tainted syzkaller #0 [ 218.165721][ T6754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 218.167411][ T6754] Call trace: [ 218.167924][ T6754] dump_backtrace+0x0/0x458 [ 218.168659][ T6754] show_stack+0x2c/0x3c [ 218.169346][ T6754] __dump_stack+0x30/0x40 [ 218.170063][ T6754] dump_stack_lvl+0xf4/0x15c [ 218.170825][ T6754] dump_stack+0x1c/0x5c [ 218.171537][ T6754] sysfs_create_dir_ns+0x244/0x264 [ 218.172368][ T6754] kobject_add_internal+0x5ac/0xc3c [ 218.173165][ T6754] kobject_init_and_add+0x124/0x190 [ 218.173984][ T6754] gfs2_sys_fs_add+0x200/0x41c [ 218.174750][ T6754] gfs2_fill_super+0xddc/0x1a18 [ 218.175532][ T6754] get_tree_bdev+0x358/0x544 [ 218.176233][ T6754] gfs2_get_tree+0x54/0x1b4 [ 218.176975][ T6754] vfs_get_tree+0x90/0x274 [ 218.177733][ T6754] do_new_mount+0x228/0x810 [ 218.178485][ T6754] path_mount+0x5bc/0x1008 [ 218.179207][ T6754] __arm64_sys_mount+0x514/0x5f0 [ 218.180007][ T6754] invoke_syscall+0x98/0x2b0 [ 218.180820][ T6754] el0_svc_common+0x138/0x258 [ 218.181590][ T6754] do_el0_svc+0x58/0x13c [ 218.182282][ T6754] el0_svc+0x78/0x1d0 [ 218.182923][ T6754] el0t_64_sync_handler+0xcc/0xe4 [ 218.183762][ T6754] el0t_64_sync+0x1a0/0x1a4 [ 218.186035][ T6754] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.187959][ T6754] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.323927][ T6757] loop1: detected capacity change from 0 to 32768 [ 218.331865][ T6757] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.332970][ T6757] CPU: 0 PID: 6757 Comm: syz.1.613 Not tainted syzkaller #0 [ 218.334045][ T6757] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 218.335549][ T6757] Call trace: [ 218.336069][ T6757] dump_backtrace+0x0/0x458 [ 218.336748][ T6757] show_stack+0x2c/0x3c [ 218.337411][ T6757] __dump_stack+0x30/0x40 [ 218.338109][ T6757] dump_stack_lvl+0xf4/0x15c [ 218.338871][ T6757] dump_stack+0x1c/0x5c [ 218.339581][ T6757] sysfs_create_dir_ns+0x244/0x264 [ 218.340398][ T6757] kobject_add_internal+0x5ac/0xc3c [ 218.341233][ T6757] kobject_init_and_add+0x124/0x190 [ 218.342114][ T6757] gfs2_sys_fs_add+0x200/0x41c [ 218.342910][ T6757] gfs2_fill_super+0xddc/0x1a18 [ 218.343708][ T6757] get_tree_bdev+0x358/0x544 [ 218.344405][ T6757] gfs2_get_tree+0x54/0x1b4 [ 218.345174][ T6757] vfs_get_tree+0x90/0x274 [ 218.345899][ T6757] do_new_mount+0x228/0x810 [ 218.346614][ T6757] path_mount+0x5bc/0x1008 [ 218.347374][ T6757] __arm64_sys_mount+0x514/0x5f0 [ 218.348180][ T6757] invoke_syscall+0x98/0x2b0 [ 218.348969][ T6757] el0_svc_common+0x138/0x258 [ 218.349797][ T6757] do_el0_svc+0x58/0x13c [ 218.350514][ T6757] el0_svc+0x78/0x1d0 [ 218.351161][ T6757] el0t_64_sync_handler+0xcc/0xe4 [ 218.352008][ T6757] el0t_64_sync+0x1a0/0x1a4 [ 218.354341][ T6757] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.356362][ T6757] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.487515][ T6760] loop1: detected capacity change from 0 to 32768 [ 218.522033][ T6760] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.523231][ T6760] CPU: 1 PID: 6760 Comm: syz.1.614 Not tainted syzkaller #0 [ 218.524462][ T6760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 218.526172][ T6760] Call trace: [ 218.526719][ T6760] dump_backtrace+0x0/0x458 [ 218.527445][ T6760] show_stack+0x2c/0x3c [ 218.528161][ T6760] __dump_stack+0x30/0x40 [ 218.528885][ T6760] dump_stack_lvl+0xf4/0x15c [ 218.529633][ T6760] dump_stack+0x1c/0x5c [ 218.530273][ T6760] sysfs_create_dir_ns+0x244/0x264 [ 218.531141][ T6760] kobject_add_internal+0x5ac/0xc3c [ 218.531967][ T6760] kobject_init_and_add+0x124/0x190 [ 218.532831][ T6760] gfs2_sys_fs_add+0x200/0x41c [ 218.533583][ T6760] gfs2_fill_super+0xddc/0x1a18 [ 218.534331][ T6760] get_tree_bdev+0x358/0x544 [ 218.535157][ T6760] gfs2_get_tree+0x54/0x1b4 [ 218.535951][ T6760] vfs_get_tree+0x90/0x274 [ 218.536682][ T6760] do_new_mount+0x228/0x810 [ 218.537398][ T6760] path_mount+0x5bc/0x1008 [ 218.538151][ T6760] __arm64_sys_mount+0x514/0x5f0 [ 218.538963][ T6760] invoke_syscall+0x98/0x2b0 [ 218.539755][ T6760] el0_svc_common+0x138/0x258 [ 218.540522][ T6760] do_el0_svc+0x58/0x13c [ 218.541187][ T6760] el0_svc+0x78/0x1d0 [ 218.541855][ T6760] el0t_64_sync_handler+0xcc/0xe4 [ 218.542678][ T6760] el0t_64_sync+0x1a0/0x1a4 [ 218.545010][ T6760] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.547045][ T6760] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.682947][ T6763] loop1: detected capacity change from 0 to 32768 [ 218.691231][ T6763] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.692267][ T6763] CPU: 0 PID: 6763 Comm: syz.1.615 Not tainted syzkaller #0 [ 218.693594][ T6763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 218.695212][ T6763] Call trace: [ 218.695816][ T6763] dump_backtrace+0x0/0x458 [ 218.696569][ T6763] show_stack+0x2c/0x3c [ 218.697311][ T6763] __dump_stack+0x30/0x40 [ 218.697967][ T6763] dump_stack_lvl+0xf4/0x15c [ 218.698657][ T6763] dump_stack+0x1c/0x5c [ 218.699357][ T6763] sysfs_create_dir_ns+0x244/0x264 [ 218.700225][ T6763] kobject_add_internal+0x5ac/0xc3c [ 218.701050][ T6763] kobject_init_and_add+0x124/0x190 [ 218.701943][ T6763] gfs2_sys_fs_add+0x200/0x41c [ 218.702674][ T6763] gfs2_fill_super+0xddc/0x1a18 [ 218.703448][ T6763] get_tree_bdev+0x358/0x544 [ 218.704199][ T6763] gfs2_get_tree+0x54/0x1b4 [ 218.704945][ T6763] vfs_get_tree+0x90/0x274 [ 218.705677][ T6763] do_new_mount+0x228/0x810 [ 218.706402][ T6763] path_mount+0x5bc/0x1008 [ 218.707148][ T6763] __arm64_sys_mount+0x514/0x5f0 [ 218.707955][ T6763] invoke_syscall+0x98/0x2b0 [ 218.708746][ T6763] el0_svc_common+0x138/0x258 [ 218.709556][ T6763] do_el0_svc+0x58/0x13c [ 218.710257][ T6763] el0_svc+0x78/0x1d0 [ 218.710909][ T6763] el0t_64_sync_handler+0xcc/0xe4 [ 218.711670][ T6763] el0t_64_sync+0x1a0/0x1a4 [ 218.715281][ T6763] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.717274][ T6763] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.849591][ T6766] loop1: detected capacity change from 0 to 32768 [ 218.916030][ T6766] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.917247][ T6766] CPU: 0 PID: 6766 Comm: syz.1.616 Not tainted syzkaller #0 [ 218.918528][ T6766] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 218.920278][ T6766] Call trace: [ 218.920776][ T6766] dump_backtrace+0x0/0x458 [ 218.921562][ T6766] show_stack+0x2c/0x3c [ 218.922267][ T6766] __dump_stack+0x30/0x40 [ 218.922982][ T6766] dump_stack_lvl+0xf4/0x15c [ 218.923722][ T6766] dump_stack+0x1c/0x5c [ 218.924386][ T6766] sysfs_create_dir_ns+0x244/0x264 [ 218.925306][ T6766] kobject_add_internal+0x5ac/0xc3c [ 218.926192][ T6766] kobject_init_and_add+0x124/0x190 [ 218.927020][ T6766] gfs2_sys_fs_add+0x200/0x41c [ 218.927751][ T6766] gfs2_fill_super+0xddc/0x1a18 [ 218.928506][ T6766] get_tree_bdev+0x358/0x544 [ 218.929274][ T6766] gfs2_get_tree+0x54/0x1b4 [ 218.929989][ T6766] vfs_get_tree+0x90/0x274 [ 218.930792][ T6766] do_new_mount+0x228/0x810 [ 218.931522][ T6766] path_mount+0x5bc/0x1008 [ 218.932319][ T6766] __arm64_sys_mount+0x514/0x5f0 [ 218.933065][ T6766] invoke_syscall+0x98/0x2b0 [ 218.933794][ T6766] el0_svc_common+0x138/0x258 [ 218.934596][ T6766] do_el0_svc+0x58/0x13c [ 218.935263][ T6766] el0_svc+0x78/0x1d0 [ 218.935956][ T6766] el0t_64_sync_handler+0xcc/0xe4 [ 218.936807][ T6766] el0t_64_sync+0x1a0/0x1a4 [ 218.939366][ T6766] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.941489][ T6766] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.072577][ T6769] loop1: detected capacity change from 0 to 32768 [ 219.125297][ T6769] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.126454][ T6769] CPU: 0 PID: 6769 Comm: syz.1.617 Not tainted syzkaller #0 [ 219.127678][ T6769] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 219.129313][ T6769] Call trace: [ 219.129800][ T6769] dump_backtrace+0x0/0x458 [ 219.130521][ T6769] show_stack+0x2c/0x3c [ 219.131203][ T6769] __dump_stack+0x30/0x40 [ 219.131899][ T6769] dump_stack_lvl+0xf4/0x15c [ 219.132672][ T6769] dump_stack+0x1c/0x5c [ 219.133334][ T6769] sysfs_create_dir_ns+0x244/0x264 [ 219.134183][ T6769] kobject_add_internal+0x5ac/0xc3c [ 219.135089][ T6769] kobject_init_and_add+0x124/0x190 [ 219.135982][ T6769] gfs2_sys_fs_add+0x200/0x41c [ 219.136815][ T6769] gfs2_fill_super+0xddc/0x1a18 [ 219.137690][ T6769] get_tree_bdev+0x358/0x544 [ 219.138477][ T6769] gfs2_get_tree+0x54/0x1b4 [ 219.139292][ T6769] vfs_get_tree+0x90/0x274 [ 219.140044][ T6769] do_new_mount+0x228/0x810 [ 219.140771][ T6769] path_mount+0x5bc/0x1008 [ 219.141463][ T6769] __arm64_sys_mount+0x514/0x5f0 [ 219.142210][ T6769] invoke_syscall+0x98/0x2b0 [ 219.142900][ T6769] el0_svc_common+0x138/0x258 [ 219.143643][ T6769] do_el0_svc+0x58/0x13c [ 219.144340][ T6769] el0_svc+0x78/0x1d0 [ 219.145035][ T6769] el0t_64_sync_handler+0xcc/0xe4 [ 219.145800][ T6769] el0t_64_sync+0x1a0/0x1a4 [ 219.147585][ T6769] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.149702][ T6769] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.229561][ T6772] chnl_net:caif_netlink_parms(): no params data found [ 219.249473][ T6772] bridge0: port 1(bridge_slave_0) entered blocking state [ 219.250713][ T6772] bridge0: port 1(bridge_slave_0) entered disabled state [ 219.252154][ T6772] device bridge_slave_0 entered promiscuous mode [ 219.254226][ T6772] bridge0: port 2(bridge_slave_1) entered blocking state [ 219.255308][ T6772] bridge0: port 2(bridge_slave_1) entered disabled state [ 219.256865][ T6772] device bridge_slave_1 entered promiscuous mode [ 219.266145][ T6772] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 219.269220][ T6772] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 219.277631][ T6772] team0: Port device team_slave_0 added [ 219.279681][ T6772] team0: Port device team_slave_1 added [ 219.287047][ T6772] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 219.288187][ T6772] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 219.292485][ T6772] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 219.294823][ T6772] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 219.295932][ T6772] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 219.300314][ T6772] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 219.371953][ T6772] device hsr_slave_0 entered promiscuous mode [ 219.420736][ T6772] device hsr_slave_1 entered promiscuous mode [ 219.460504][ T6772] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 219.461606][ T6772] Cannot create hsr debugfs directory [ 219.493377][ T6772] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.517370][ T6772] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.794269][ T6772] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 219.846617][ T6772] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 220.004807][ T6772] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 220.047431][ T6772] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 220.093269][ T6772] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 220.132246][ T6772] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 220.190065][ T6772] bridge0: port 2(bridge_slave_1) entered blocking state [ 220.191316][ T6772] bridge0: port 2(bridge_slave_1) entered forwarding state [ 220.192574][ T6772] bridge0: port 1(bridge_slave_0) entered blocking state [ 220.193896][ T6772] bridge0: port 1(bridge_slave_0) entered forwarding state [ 220.213023][ T6772] 8021q: adding VLAN 0 to HW filter on device bond0 [ 220.217243][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 220.218901][ T9] bridge0: port 1(bridge_slave_0) entered disabled state [ 220.221877][ T9] bridge0: port 2(bridge_slave_1) entered disabled state [ 220.223933][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 220.228610][ T6772] 8021q: adding VLAN 0 to HW filter on device team0 [ 220.234581][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 220.236174][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 220.237563][ T9] bridge0: port 1(bridge_slave_0) entered blocking state [ 220.238653][ T9] bridge0: port 1(bridge_slave_0) entered forwarding state [ 220.241963][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 220.243600][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 220.245159][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 220.246349][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 220.248988][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 220.253696][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 220.256434][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 220.258369][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 220.260026][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 220.262845][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 220.264490][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 220.267315][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 220.268779][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 220.273173][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 220.274654][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 220.277473][ T6772] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 220.318828][ T6772] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 220.321571][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 220.322714][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 220.329217][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 220.333578][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 220.343098][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 220.344656][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 220.346319][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 220.348278][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 220.351179][ T6772] device veth0_vlan entered promiscuous mode [ 220.354690][ T6772] device veth1_vlan entered promiscuous mode [ 220.362416][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 220.364006][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 220.365489][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 220.367058][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 220.369405][ T6772] device veth0_macvtap entered promiscuous mode [ 220.375802][ T6772] device veth1_macvtap entered promiscuous mode [ 220.380899][ T6772] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 220.382533][ T6772] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.384179][ T6772] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 220.385769][ T6772] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.387983][ T6772] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 220.389211][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 220.391759][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 220.393284][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 220.394900][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 220.397500][ T6772] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 220.399120][ T6772] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.400782][ T6772] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 220.402399][ T6772] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 220.404526][ T6772] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 220.405790][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 220.407463][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 220.410201][ T6772] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.411822][ T6772] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.413186][ T6772] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.414652][ T6772] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 220.439839][ T136] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 220.442785][ T136] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 220.444487][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 220.446435][ T136] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 220.447652][ T136] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 220.449034][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 220.595420][ T6784] loop1: detected capacity change from 0 to 32768 [ 220.635515][ T6784] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.636706][ T6784] CPU: 0 PID: 6784 Comm: syz.1.618 Not tainted syzkaller #0 [ 220.637886][ T6784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 220.639470][ T6784] Call trace: [ 220.639976][ T6784] dump_backtrace+0x0/0x458 [ 220.640745][ T6784] show_stack+0x2c/0x3c [ 220.641446][ T6784] __dump_stack+0x30/0x40 [ 220.642190][ T6784] dump_stack_lvl+0xf4/0x15c [ 220.642993][ T6784] dump_stack+0x1c/0x5c [ 220.643711][ T6784] sysfs_create_dir_ns+0x244/0x264 [ 220.644634][ T6784] kobject_add_internal+0x5ac/0xc3c [ 220.645502][ T6784] kobject_init_and_add+0x124/0x190 [ 220.646342][ T6784] gfs2_sys_fs_add+0x200/0x41c [ 220.647162][ T6784] gfs2_fill_super+0xddc/0x1a18 [ 220.647996][ T6784] get_tree_bdev+0x358/0x544 [ 220.648789][ T6784] gfs2_get_tree+0x54/0x1b4 [ 220.649497][ T6784] vfs_get_tree+0x90/0x274 [ 220.650201][ T6784] do_new_mount+0x228/0x810 [ 220.650903][ T6784] path_mount+0x5bc/0x1008 [ 220.651583][ T6784] __arm64_sys_mount+0x514/0x5f0 [ 220.652380][ T6784] invoke_syscall+0x98/0x2b0 [ 220.653203][ T6784] el0_svc_common+0x138/0x258 [ 220.653993][ T6784] do_el0_svc+0x58/0x13c [ 220.654711][ T6784] el0_svc+0x78/0x1d0 [ 220.655328][ T6784] el0t_64_sync_handler+0xcc/0xe4 [ 220.656216][ T6784] el0t_64_sync+0x1a0/0x1a4 [ 220.657993][ T6784] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.660071][ T6784] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.805139][ T6787] loop1: detected capacity change from 0 to 32768 [ 220.857223][ T6787] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.858440][ T6787] CPU: 0 PID: 6787 Comm: syz.1.619 Not tainted syzkaller #0 [ 220.859584][ T6787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 220.861187][ T6787] Call trace: [ 220.861698][ T6787] dump_backtrace+0x0/0x458 [ 220.862585][ T6787] show_stack+0x2c/0x3c [ 220.863269][ T6787] __dump_stack+0x30/0x40 [ 220.863945][ T6787] dump_stack_lvl+0xf4/0x15c [ 220.864720][ T6787] dump_stack+0x1c/0x5c [ 220.865445][ T6787] sysfs_create_dir_ns+0x244/0x264 [ 220.866283][ T6787] kobject_add_internal+0x5ac/0xc3c [ 220.867222][ T6787] kobject_init_and_add+0x124/0x190 [ 220.868197][ T6787] gfs2_sys_fs_add+0x200/0x41c [ 220.868949][ T6787] gfs2_fill_super+0xddc/0x1a18 [ 220.869746][ T6787] get_tree_bdev+0x358/0x544 [ 220.870458][ T6787] gfs2_get_tree+0x54/0x1b4 [ 220.871146][ T6787] vfs_get_tree+0x90/0x274 [ 220.871865][ T6787] do_new_mount+0x228/0x810 [ 220.872554][ T6787] path_mount+0x5bc/0x1008 [ 220.873231][ T6787] __arm64_sys_mount+0x514/0x5f0 [ 220.874008][ T6787] invoke_syscall+0x98/0x2b0 [ 220.874802][ T6787] el0_svc_common+0x138/0x258 [ 220.875576][ T6787] do_el0_svc+0x58/0x13c [ 220.876289][ T6787] el0_svc+0x78/0x1d0 [ 220.876980][ T6787] el0t_64_sync_handler+0xcc/0xe4 [ 220.877841][ T6787] el0t_64_sync+0x1a0/0x1a4 [ 220.879343][ T6787] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.881621][ T6787] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.030604][ T6790] loop1: detected capacity change from 0 to 32768 [ 221.086040][ T6790] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.087282][ T6790] CPU: 1 PID: 6790 Comm: syz.1.620 Not tainted syzkaller #0 [ 221.088523][ T6790] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 221.090345][ T6790] Call trace: [ 221.090863][ T6790] dump_backtrace+0x0/0x458 [ 221.091585][ T6790] show_stack+0x2c/0x3c [ 221.092286][ T6790] __dump_stack+0x30/0x40 [ 221.093068][ T6790] dump_stack_lvl+0xf4/0x15c [ 221.093843][ T6790] dump_stack+0x1c/0x5c [ 221.094550][ T6790] sysfs_create_dir_ns+0x244/0x264 [ 221.095385][ T6790] kobject_add_internal+0x5ac/0xc3c [ 221.096279][ T6790] kobject_init_and_add+0x124/0x190 [ 221.097173][ T6790] gfs2_sys_fs_add+0x200/0x41c [ 221.097991][ T6790] gfs2_fill_super+0xddc/0x1a18 [ 221.098798][ T6790] get_tree_bdev+0x358/0x544 [ 221.099522][ T6790] gfs2_get_tree+0x54/0x1b4 [ 221.100294][ T6790] vfs_get_tree+0x90/0x274 [ 221.101030][ T6790] do_new_mount+0x228/0x810 [ 221.101749][ T6790] path_mount+0x5bc/0x1008 [ 221.102561][ T6790] __arm64_sys_mount+0x514/0x5f0 [ 221.103398][ T6790] invoke_syscall+0x98/0x2b0 [ 221.104163][ T6790] el0_svc_common+0x138/0x258 [ 221.104965][ T6790] do_el0_svc+0x58/0x13c [ 221.105600][ T6790] el0_svc+0x78/0x1d0 [ 221.106255][ T6790] el0t_64_sync_handler+0xcc/0xe4 [ 221.107076][ T6790] el0t_64_sync+0x1a0/0x1a4 [ 221.109896][ T6790] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.112022][ T6790] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.147764][ T1879] device hsr_slave_0 left promiscuous mode [ 221.170797][ T1879] device hsr_slave_1 left promiscuous mode [ 221.250643][ T1879] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 221.251851][ T1879] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 221.253535][ T1879] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 221.254694][ T1879] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 221.256217][ T1879] device bridge_slave_1 left promiscuous mode [ 221.257190][ T1879] bridge0: port 2(bridge_slave_1) entered disabled state [ 221.285315][ T6793] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.286561][ T6793] CPU: 1 PID: 6793 Comm: syz.1.621 Not tainted syzkaller #0 [ 221.287796][ T6793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 221.289555][ T6793] Call trace: [ 221.290023][ T6793] dump_backtrace+0x0/0x458 [ 221.290747][ T6793] show_stack+0x2c/0x3c [ 221.291366][ T4643] Bluetooth: hci2: command 0x0409 tx timeout [ 221.291412][ T6793] __dump_stack+0x30/0x40 [ 221.293085][ T6793] dump_stack_lvl+0xf4/0x15c [ 221.293853][ T6793] dump_stack+0x1c/0x5c [ 221.294480][ T6793] sysfs_create_dir_ns+0x244/0x264 [ 221.295366][ T6793] kobject_add_internal+0x5ac/0xc3c [ 221.296219][ T6793] kobject_init_and_add+0x124/0x190 [ 221.297085][ T6793] gfs2_sys_fs_add+0x200/0x41c [ 221.297874][ T6793] gfs2_fill_super+0xddc/0x1a18 [ 221.298694][ T6793] get_tree_bdev+0x358/0x544 [ 221.299481][ T6793] gfs2_get_tree+0x54/0x1b4 [ 221.300221][ T6793] vfs_get_tree+0x90/0x274 [ 221.300938][ T6793] do_new_mount+0x228/0x810 [ 221.301631][ T6793] path_mount+0x5bc/0x1008 [ 221.302350][ T6793] __arm64_sys_mount+0x514/0x5f0 [ 221.303118][ T6793] invoke_syscall+0x98/0x2b0 [ 221.303793][ T6793] el0_svc_common+0x138/0x258 [ 221.304519][ T6793] do_el0_svc+0x58/0x13c [ 221.305207][ T6793] el0_svc+0x78/0x1d0 [ 221.305854][ T6793] el0t_64_sync_handler+0xcc/0xe4 [ 221.306606][ T6793] el0t_64_sync+0x1a0/0x1a4 [ 221.309160][ T6793] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.311795][ T6793] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.312078][ T1879] device bridge_slave_0 left promiscuous mode [ 221.313951][ T1879] bridge0: port 1(bridge_slave_0) entered disabled state [ 221.421414][ T1879] device veth1_macvtap left promiscuous mode [ 221.422490][ T1879] device veth0_macvtap left promiscuous mode [ 221.423594][ T1879] device veth1_vlan left promiscuous mode [ 221.424667][ T1879] device veth0_vlan left promiscuous mode [ 221.490299][ T6796] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.491658][ T6796] CPU: 0 PID: 6796 Comm: syz.1.622 Not tainted syzkaller #0 [ 221.492706][ T6796] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 221.494307][ T6796] Call trace: [ 221.494827][ T6796] dump_backtrace+0x0/0x458 [ 221.495540][ T6796] show_stack+0x2c/0x3c [ 221.496222][ T6796] __dump_stack+0x30/0x40 [ 221.496933][ T6796] dump_stack_lvl+0xf4/0x15c [ 221.497596][ T6796] dump_stack+0x1c/0x5c [ 221.498190][ T6796] sysfs_create_dir_ns+0x244/0x264 [ 221.499040][ T6796] kobject_add_internal+0x5ac/0xc3c [ 221.499909][ T6796] kobject_init_and_add+0x124/0x190 [ 221.500734][ T6796] gfs2_sys_fs_add+0x200/0x41c [ 221.501484][ T6796] gfs2_fill_super+0xddc/0x1a18 [ 221.502324][ T6796] get_tree_bdev+0x358/0x544 [ 221.503153][ T6796] gfs2_get_tree+0x54/0x1b4 [ 221.503933][ T6796] vfs_get_tree+0x90/0x274 [ 221.504723][ T6796] do_new_mount+0x228/0x810 [ 221.505552][ T6796] path_mount+0x5bc/0x1008 [ 221.506258][ T6796] __arm64_sys_mount+0x514/0x5f0 [ 221.507041][ T6796] invoke_syscall+0x98/0x2b0 [ 221.507774][ T6796] el0_svc_common+0x138/0x258 [ 221.508554][ T6796] do_el0_svc+0x58/0x13c [ 221.509212][ T6796] el0_svc+0x78/0x1d0 [ 221.509788][ T6796] el0t_64_sync_handler+0xcc/0xe4 [ 221.510592][ T6796] el0t_64_sync+0x1a0/0x1a4 [ 221.512247][ T6796] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.514300][ T6796] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.596033][ T1879] team0 (unregistering): Port device team_slave_1 removed [ 221.602095][ T1879] team0 (unregistering): Port device team_slave_0 removed [ 221.607178][ T1879] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 221.646375][ T1879] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 221.685368][ T6799] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.686569][ T6799] CPU: 1 PID: 6799 Comm: syz.1.623 Not tainted syzkaller #0 [ 221.687776][ T6799] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 221.689443][ T6799] Call trace: [ 221.689978][ T6799] dump_backtrace+0x0/0x458 [ 221.690773][ T6799] show_stack+0x2c/0x3c [ 221.691488][ T6799] __dump_stack+0x30/0x40 [ 221.692222][ T6799] dump_stack_lvl+0xf4/0x15c [ 221.692947][ T6799] dump_stack+0x1c/0x5c [ 221.693575][ T6799] sysfs_create_dir_ns+0x244/0x264 [ 221.694484][ T6799] kobject_add_internal+0x5ac/0xc3c [ 221.695335][ T6799] kobject_init_and_add+0x124/0x190 [ 221.696148][ T6799] gfs2_sys_fs_add+0x200/0x41c [ 221.696951][ T6799] gfs2_fill_super+0xddc/0x1a18 [ 221.697780][ T6799] get_tree_bdev+0x358/0x544 [ 221.698567][ T6799] gfs2_get_tree+0x54/0x1b4 [ 221.699342][ T6799] vfs_get_tree+0x90/0x274 [ 221.700194][ T6799] do_new_mount+0x228/0x810 [ 221.700937][ T6799] path_mount+0x5bc/0x1008 [ 221.701628][ T6799] __arm64_sys_mount+0x514/0x5f0 [ 221.702473][ T6799] invoke_syscall+0x98/0x2b0 [ 221.703279][ T6799] el0_svc_common+0x138/0x258 [ 221.704074][ T6799] do_el0_svc+0x58/0x13c [ 221.704748][ T6799] el0_svc+0x78/0x1d0 [ 221.705449][ T6799] el0t_64_sync_handler+0xcc/0xe4 [ 221.706284][ T6799] el0t_64_sync+0x1a0/0x1a4 [ 221.711133][ T6799] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.713348][ T6799] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.767542][ T1879] bond0 (unregistering): Released all slaves [ 221.910703][ T6802] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.912035][ T6802] CPU: 1 PID: 6802 Comm: syz.1.624 Not tainted syzkaller #0 [ 221.913322][ T6802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 221.914949][ T6802] Call trace: [ 221.915515][ T6802] dump_backtrace+0x0/0x458 [ 221.916247][ T6802] show_stack+0x2c/0x3c [ 221.916922][ T6802] __dump_stack+0x30/0x40 [ 221.917622][ T6802] dump_stack_lvl+0xf4/0x15c [ 221.918452][ T6802] dump_stack+0x1c/0x5c [ 221.919124][ T6802] sysfs_create_dir_ns+0x244/0x264 [ 221.919931][ T6802] kobject_add_internal+0x5ac/0xc3c [ 221.920776][ T6802] kobject_init_and_add+0x124/0x190 [ 221.921666][ T6802] gfs2_sys_fs_add+0x200/0x41c [ 221.922455][ T6802] gfs2_fill_super+0xddc/0x1a18 [ 221.923219][ T6802] get_tree_bdev+0x358/0x544 [ 221.923996][ T6802] gfs2_get_tree+0x54/0x1b4 [ 221.924734][ T6802] vfs_get_tree+0x90/0x274 [ 221.925505][ T6802] do_new_mount+0x228/0x810 [ 221.926263][ T6802] path_mount+0x5bc/0x1008 [ 221.926998][ T6802] __arm64_sys_mount+0x514/0x5f0 [ 221.927784][ T6802] invoke_syscall+0x98/0x2b0 [ 221.928498][ T6802] el0_svc_common+0x138/0x258 [ 221.929299][ T6802] do_el0_svc+0x58/0x13c [ 221.930019][ T6802] el0_svc+0x78/0x1d0 [ 221.930664][ T6802] el0t_64_sync_handler+0xcc/0xe4 [ 221.931494][ T6802] el0t_64_sync+0x1a0/0x1a4 [ 221.934285][ T6802] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.936483][ T6802] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.116680][ T6805] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.117987][ T6805] CPU: 1 PID: 6805 Comm: syz.1.625 Not tainted syzkaller #0 [ 222.119040][ T6805] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 222.120682][ T6805] Call trace: [ 222.121197][ T6805] dump_backtrace+0x0/0x458 [ 222.121927][ T6805] show_stack+0x2c/0x3c [ 222.122617][ T6805] __dump_stack+0x30/0x40 [ 222.123323][ T6805] dump_stack_lvl+0xf4/0x15c [ 222.124026][ T6805] dump_stack+0x1c/0x5c [ 222.124725][ T6805] sysfs_create_dir_ns+0x244/0x264 [ 222.125609][ T6805] kobject_add_internal+0x5ac/0xc3c [ 222.126470][ T6805] kobject_init_and_add+0x124/0x190 [ 222.127297][ T6805] gfs2_sys_fs_add+0x200/0x41c [ 222.128130][ T6805] gfs2_fill_super+0xddc/0x1a18 [ 222.128955][ T6805] get_tree_bdev+0x358/0x544 [ 222.129741][ T6805] gfs2_get_tree+0x54/0x1b4 [ 222.130520][ T6805] vfs_get_tree+0x90/0x274 [ 222.131301][ T6805] do_new_mount+0x228/0x810 [ 222.132037][ T6805] path_mount+0x5bc/0x1008 [ 222.132745][ T6805] __arm64_sys_mount+0x514/0x5f0 [ 222.133578][ T6805] invoke_syscall+0x98/0x2b0 [ 222.134410][ T6805] el0_svc_common+0x138/0x258 [ 222.135159][ T6805] do_el0_svc+0x58/0x13c [ 222.135844][ T6805] el0_svc+0x78/0x1d0 [ 222.136479][ T6805] el0t_64_sync_handler+0xcc/0xe4 [ 222.137284][ T6805] el0t_64_sync+0x1a0/0x1a4 [ 222.138572][ T6805] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.140760][ T6805] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.306075][ T6808] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.307377][ T6808] CPU: 1 PID: 6808 Comm: syz.1.626 Not tainted syzkaller #0 [ 222.308599][ T6808] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 222.310225][ T6808] Call trace: [ 222.310815][ T6808] dump_backtrace+0x0/0x458 [ 222.311564][ T6808] show_stack+0x2c/0x3c [ 222.312334][ T6808] __dump_stack+0x30/0x40 [ 222.313089][ T6808] dump_stack_lvl+0xf4/0x15c [ 222.313858][ T6808] dump_stack+0x1c/0x5c [ 222.314533][ T6808] sysfs_create_dir_ns+0x244/0x264 [ 222.315393][ T6808] kobject_add_internal+0x5ac/0xc3c [ 222.316266][ T6808] kobject_init_and_add+0x124/0x190 [ 222.317140][ T6808] gfs2_sys_fs_add+0x200/0x41c [ 222.317945][ T6808] gfs2_fill_super+0xddc/0x1a18 [ 222.318773][ T6808] get_tree_bdev+0x358/0x544 [ 222.319555][ T6808] gfs2_get_tree+0x54/0x1b4 [ 222.320314][ T6808] vfs_get_tree+0x90/0x274 [ 222.321092][ T6808] do_new_mount+0x228/0x810 [ 222.321910][ T6808] path_mount+0x5bc/0x1008 [ 222.322666][ T6808] __arm64_sys_mount+0x514/0x5f0 [ 222.323487][ T6808] invoke_syscall+0x98/0x2b0 [ 222.324270][ T6808] el0_svc_common+0x138/0x258 [ 222.325071][ T6808] do_el0_svc+0x58/0x13c [ 222.325780][ T6808] el0_svc+0x78/0x1d0 [ 222.326420][ T6808] el0t_64_sync_handler+0xcc/0xe4 [ 222.327257][ T6808] el0t_64_sync+0x1a0/0x1a4 [ 222.328289][ T6808] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.330622][ T6808] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.515770][ T6811] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.517106][ T6811] CPU: 0 PID: 6811 Comm: syz.1.627 Not tainted syzkaller #0 [ 222.518257][ T6811] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 222.519956][ T6811] Call trace: [ 222.520528][ T6811] dump_backtrace+0x0/0x458 [ 222.521320][ T6811] show_stack+0x2c/0x3c [ 222.522015][ T6811] __dump_stack+0x30/0x40 [ 222.522744][ T6811] dump_stack_lvl+0xf4/0x15c [ 222.523476][ T6811] dump_stack+0x1c/0x5c [ 222.524227][ T6811] sysfs_create_dir_ns+0x244/0x264 [ 222.525105][ T6811] kobject_add_internal+0x5ac/0xc3c [ 222.525986][ T6811] kobject_init_and_add+0x124/0x190 [ 222.526846][ T6811] gfs2_sys_fs_add+0x200/0x41c [ 222.527578][ T6811] gfs2_fill_super+0xddc/0x1a18 [ 222.528357][ T6811] get_tree_bdev+0x358/0x544 [ 222.529171][ T6811] gfs2_get_tree+0x54/0x1b4 [ 222.529873][ T6811] vfs_get_tree+0x90/0x274 [ 222.530576][ T6811] do_new_mount+0x228/0x810 [ 222.531370][ T6811] path_mount+0x5bc/0x1008 [ 222.532097][ T6811] __arm64_sys_mount+0x514/0x5f0 [ 222.532996][ T6811] invoke_syscall+0x98/0x2b0 [ 222.533728][ T6811] el0_svc_common+0x138/0x258 [ 222.534472][ T6811] do_el0_svc+0x58/0x13c [ 222.535185][ T6811] el0_svc+0x78/0x1d0 [ 222.535748][ T6811] el0t_64_sync_handler+0xcc/0xe4 [ 222.536588][ T6811] el0t_64_sync+0x1a0/0x1a4 [ 222.539395][ T6811] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.550697][ T6811] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.877679][ T6814] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.878914][ T6814] CPU: 0 PID: 6814 Comm: syz.1.628 Not tainted syzkaller #0 [ 222.880100][ T6814] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 222.881765][ T6814] Call trace: [ 222.882317][ T6814] dump_backtrace+0x0/0x458 [ 222.883138][ T6814] show_stack+0x2c/0x3c [ 222.883804][ T6814] __dump_stack+0x30/0x40 [ 222.884559][ T6814] dump_stack_lvl+0xf4/0x15c [ 222.885303][ T6814] dump_stack+0x1c/0x5c [ 222.886110][ T6814] sysfs_create_dir_ns+0x244/0x264 [ 222.886968][ T6814] kobject_add_internal+0x5ac/0xc3c [ 222.887700][ T6814] kobject_init_and_add+0x124/0x190 [ 222.888433][ T6814] gfs2_sys_fs_add+0x200/0x41c [ 222.889094][ T6814] gfs2_fill_super+0xddc/0x1a18 [ 222.889768][ T6814] get_tree_bdev+0x358/0x544 [ 222.890424][ T6814] gfs2_get_tree+0x54/0x1b4 [ 222.891073][ T6814] vfs_get_tree+0x90/0x274 [ 222.891708][ T6814] do_new_mount+0x228/0x810 [ 222.892351][ T6814] path_mount+0x5bc/0x1008 [ 222.893014][ T6814] __arm64_sys_mount+0x514/0x5f0 [ 222.893719][ T6814] invoke_syscall+0x98/0x2b0 [ 222.894363][ T6814] el0_svc_common+0x138/0x258 [ 222.895022][ T6814] do_el0_svc+0x58/0x13c [ 222.895619][ T6814] el0_svc+0x78/0x1d0 [ 222.896177][ T6814] el0t_64_sync_handler+0xcc/0xe4 [ 222.896879][ T6814] el0t_64_sync+0x1a0/0x1a4 [ 222.930545][ T6814] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.932796][ T6814] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:42 executed programs: 615 [ 223.161081][ T6817] set_capacity_and_notify: 8 callbacks suppressed [ 223.161092][ T6817] loop1: detected capacity change from 0 to 32768 [ 223.203201][ T6817] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.204353][ T6817] CPU: 0 PID: 6817 Comm: syz.1.629 Not tainted syzkaller #0 [ 223.205593][ T6817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 223.207310][ T6817] Call trace: [ 223.207879][ T6817] dump_backtrace+0x0/0x458 [ 223.208642][ T6817] show_stack+0x2c/0x3c [ 223.209370][ T6817] __dump_stack+0x30/0x40 [ 223.210069][ T6817] dump_stack_lvl+0xf4/0x15c [ 223.210857][ T6817] dump_stack+0x1c/0x5c [ 223.211544][ T6817] sysfs_create_dir_ns+0x244/0x264 [ 223.212379][ T6817] kobject_add_internal+0x5ac/0xc3c [ 223.213339][ T6817] kobject_init_and_add+0x124/0x190 [ 223.214172][ T6817] gfs2_sys_fs_add+0x200/0x41c [ 223.214996][ T6817] gfs2_fill_super+0xddc/0x1a18 [ 223.215819][ T6817] get_tree_bdev+0x358/0x544 [ 223.216591][ T6817] gfs2_get_tree+0x54/0x1b4 [ 223.217318][ T6817] vfs_get_tree+0x90/0x274 [ 223.218099][ T6817] do_new_mount+0x228/0x810 [ 223.218882][ T6817] path_mount+0x5bc/0x1008 [ 223.219616][ T6817] __arm64_sys_mount+0x514/0x5f0 [ 223.220506][ T6817] invoke_syscall+0x98/0x2b0 [ 223.221294][ T6817] el0_svc_common+0x138/0x258 [ 223.222018][ T6817] do_el0_svc+0x58/0x13c [ 223.222636][ T6817] el0_svc+0x78/0x1d0 [ 223.223250][ T6817] el0t_64_sync_handler+0xcc/0xe4 [ 223.224019][ T6817] el0t_64_sync+0x1a0/0x1a4 [ 223.226230][ T6817] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.228619][ T6817] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.370480][ T4141] Bluetooth: hci2: command 0x041b tx timeout [ 223.376181][ T6820] loop1: detected capacity change from 0 to 32768 [ 223.384425][ T6820] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.386977][ T6820] CPU: 1 PID: 6820 Comm: syz.1.630 Not tainted syzkaller #0 [ 223.388087][ T6820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 223.389812][ T6820] Call trace: [ 223.390414][ T6820] dump_backtrace+0x0/0x458 [ 223.391177][ T6820] show_stack+0x2c/0x3c [ 223.391947][ T6820] __dump_stack+0x30/0x40 [ 223.392716][ T6820] dump_stack_lvl+0xf4/0x15c [ 223.393514][ T6820] dump_stack+0x1c/0x5c [ 223.394262][ T6820] sysfs_create_dir_ns+0x244/0x264 [ 223.395128][ T6820] kobject_add_internal+0x5ac/0xc3c [ 223.395992][ T6820] kobject_init_and_add+0x124/0x190 [ 223.396908][ T6820] gfs2_sys_fs_add+0x200/0x41c [ 223.397702][ T6820] gfs2_fill_super+0xddc/0x1a18 [ 223.398508][ T6820] get_tree_bdev+0x358/0x544 [ 223.399231][ T6820] gfs2_get_tree+0x54/0x1b4 [ 223.399910][ T6820] vfs_get_tree+0x90/0x274 [ 223.400647][ T6820] do_new_mount+0x228/0x810 [ 223.401342][ T6820] path_mount+0x5bc/0x1008 [ 223.402122][ T6820] __arm64_sys_mount+0x514/0x5f0 [ 223.402982][ T6820] invoke_syscall+0x98/0x2b0 [ 223.403650][ T6820] el0_svc_common+0x138/0x258 [ 223.404402][ T6820] do_el0_svc+0x58/0x13c [ 223.405093][ T6820] el0_svc+0x78/0x1d0 [ 223.405757][ T6820] el0t_64_sync_handler+0xcc/0xe4 [ 223.406546][ T6820] el0t_64_sync+0x1a0/0x1a4 [ 223.408832][ T6820] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.411340][ T6820] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.550905][ T6823] loop1: detected capacity change from 0 to 32768 [ 223.558623][ T6823] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.559784][ T6823] CPU: 0 PID: 6823 Comm: syz.1.631 Not tainted syzkaller #0 [ 223.561017][ T6823] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 223.562671][ T6823] Call trace: [ 223.563188][ T6823] dump_backtrace+0x0/0x458 [ 223.563880][ T6823] show_stack+0x2c/0x3c [ 223.564627][ T6823] __dump_stack+0x30/0x40 [ 223.565370][ T6823] dump_stack_lvl+0xf4/0x15c [ 223.566135][ T6823] dump_stack+0x1c/0x5c [ 223.566806][ T6823] sysfs_create_dir_ns+0x244/0x264 [ 223.567676][ T6823] kobject_add_internal+0x5ac/0xc3c [ 223.568576][ T6823] kobject_init_and_add+0x124/0x190 [ 223.569447][ T6823] gfs2_sys_fs_add+0x200/0x41c [ 223.570252][ T6823] gfs2_fill_super+0xddc/0x1a18 [ 223.571046][ T6823] get_tree_bdev+0x358/0x544 [ 223.571817][ T6823] gfs2_get_tree+0x54/0x1b4 [ 223.572581][ T6823] vfs_get_tree+0x90/0x274 [ 223.573281][ T6823] do_new_mount+0x228/0x810 [ 223.573993][ T6823] path_mount+0x5bc/0x1008 [ 223.574772][ T6823] __arm64_sys_mount+0x514/0x5f0 [ 223.575532][ T6823] invoke_syscall+0x98/0x2b0 [ 223.576345][ T6823] el0_svc_common+0x138/0x258 [ 223.577058][ T6823] do_el0_svc+0x58/0x13c [ 223.577835][ T6823] el0_svc+0x78/0x1d0 [ 223.578487][ T6823] el0t_64_sync_handler+0xcc/0xe4 [ 223.579345][ T6823] el0t_64_sync+0x1a0/0x1a4 [ 223.581556][ T6823] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.583610][ T6823] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.714946][ T6826] loop1: detected capacity change from 0 to 32768 [ 223.751851][ T6826] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.753112][ T6826] CPU: 1 PID: 6826 Comm: syz.1.632 Not tainted syzkaller #0 [ 223.754528][ T6826] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 223.756269][ T6826] Call trace: [ 223.756830][ T6826] dump_backtrace+0x0/0x458 [ 223.757539][ T6826] show_stack+0x2c/0x3c [ 223.758132][ T6826] __dump_stack+0x30/0x40 [ 223.758956][ T6826] dump_stack_lvl+0xf4/0x15c [ 223.759667][ T6826] dump_stack+0x1c/0x5c [ 223.760400][ T6826] sysfs_create_dir_ns+0x244/0x264 [ 223.761284][ T6826] kobject_add_internal+0x5ac/0xc3c [ 223.762206][ T6826] kobject_init_and_add+0x124/0x190 [ 223.763054][ T6826] gfs2_sys_fs_add+0x200/0x41c [ 223.763939][ T6826] gfs2_fill_super+0xddc/0x1a18 [ 223.764700][ T6826] get_tree_bdev+0x358/0x544 [ 223.765491][ T6826] gfs2_get_tree+0x54/0x1b4 [ 223.766281][ T6826] vfs_get_tree+0x90/0x274 [ 223.767028][ T6826] do_new_mount+0x228/0x810 [ 223.767830][ T6826] path_mount+0x5bc/0x1008 [ 223.768570][ T6826] __arm64_sys_mount+0x514/0x5f0 [ 223.769458][ T6826] invoke_syscall+0x98/0x2b0 [ 223.770331][ T6826] el0_svc_common+0x138/0x258 [ 223.771108][ T6826] do_el0_svc+0x58/0x13c [ 223.771802][ T6826] el0_svc+0x78/0x1d0 [ 223.772548][ T6826] el0t_64_sync_handler+0xcc/0xe4 [ 223.773390][ T6826] el0t_64_sync+0x1a0/0x1a4 [ 223.776757][ T6826] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.778825][ T6826] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.918835][ T6829] loop1: detected capacity change from 0 to 32768 [ 223.956375][ T6829] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.957656][ T6829] CPU: 0 PID: 6829 Comm: syz.1.633 Not tainted syzkaller #0 [ 223.958858][ T6829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 223.960567][ T6829] Call trace: [ 223.961076][ T6829] dump_backtrace+0x0/0x458 [ 223.961820][ T6829] show_stack+0x2c/0x3c [ 223.962515][ T6829] __dump_stack+0x30/0x40 [ 223.963213][ T6829] dump_stack_lvl+0xf4/0x15c [ 223.963920][ T6829] dump_stack+0x1c/0x5c [ 223.964610][ T6829] sysfs_create_dir_ns+0x244/0x264 [ 223.965528][ T6829] kobject_add_internal+0x5ac/0xc3c [ 223.966304][ T6829] kobject_init_and_add+0x124/0x190 [ 223.967146][ T6829] gfs2_sys_fs_add+0x200/0x41c [ 223.967993][ T6829] gfs2_fill_super+0xddc/0x1a18 [ 223.968792][ T6829] get_tree_bdev+0x358/0x544 [ 223.969594][ T6829] gfs2_get_tree+0x54/0x1b4 [ 223.970365][ T6829] vfs_get_tree+0x90/0x274 [ 223.971113][ T6829] do_new_mount+0x228/0x810 [ 223.971986][ T6829] path_mount+0x5bc/0x1008 [ 223.972755][ T6829] __arm64_sys_mount+0x514/0x5f0 [ 223.973570][ T6829] invoke_syscall+0x98/0x2b0 [ 223.974375][ T6829] el0_svc_common+0x138/0x258 [ 223.975171][ T6829] do_el0_svc+0x58/0x13c [ 223.975948][ T6829] el0_svc+0x78/0x1d0 [ 223.976568][ T6829] el0t_64_sync_handler+0xcc/0xe4 [ 223.977443][ T6829] el0t_64_sync+0x1a0/0x1a4 [ 223.979176][ T6829] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.981466][ T6829] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.114803][ T6832] loop1: detected capacity change from 0 to 32768 [ 224.165888][ T6832] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.167231][ T6832] CPU: 0 PID: 6832 Comm: syz.1.634 Not tainted syzkaller #0 [ 224.168434][ T6832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 224.170198][ T6832] Call trace: [ 224.170676][ T6832] dump_backtrace+0x0/0x458 [ 224.171397][ T6832] show_stack+0x2c/0x3c [ 224.172018][ T6832] __dump_stack+0x30/0x40 [ 224.172751][ T6832] dump_stack_lvl+0xf4/0x15c [ 224.173552][ T6832] dump_stack+0x1c/0x5c [ 224.174213][ T6832] sysfs_create_dir_ns+0x244/0x264 [ 224.175144][ T6832] kobject_add_internal+0x5ac/0xc3c [ 224.176044][ T6832] kobject_init_and_add+0x124/0x190 [ 224.176911][ T6832] gfs2_sys_fs_add+0x200/0x41c [ 224.177748][ T6832] gfs2_fill_super+0xddc/0x1a18 [ 224.178579][ T6832] get_tree_bdev+0x358/0x544 [ 224.179310][ T6832] gfs2_get_tree+0x54/0x1b4 [ 224.180050][ T6832] vfs_get_tree+0x90/0x274 [ 224.180749][ T6832] do_new_mount+0x228/0x810 [ 224.181494][ T6832] path_mount+0x5bc/0x1008 [ 224.182260][ T6832] __arm64_sys_mount+0x514/0x5f0 [ 224.183111][ T6832] invoke_syscall+0x98/0x2b0 [ 224.183889][ T6832] el0_svc_common+0x138/0x258 [ 224.184668][ T6832] do_el0_svc+0x58/0x13c [ 224.185342][ T6832] el0_svc+0x78/0x1d0 [ 224.185961][ T6832] el0t_64_sync_handler+0xcc/0xe4 [ 224.186797][ T6832] el0t_64_sync+0x1a0/0x1a4 [ 224.187804][ T6832] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.189935][ T6832] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.326147][ T6835] loop1: detected capacity change from 0 to 32768 [ 224.351884][ T6835] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.353062][ T6835] CPU: 1 PID: 6835 Comm: syz.1.635 Not tainted syzkaller #0 [ 224.354270][ T6835] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 224.355987][ T6835] Call trace: [ 224.356549][ T6835] dump_backtrace+0x0/0x458 [ 224.357309][ T6835] show_stack+0x2c/0x3c [ 224.358033][ T6835] __dump_stack+0x30/0x40 [ 224.358732][ T6835] dump_stack_lvl+0xf4/0x15c [ 224.359499][ T6835] dump_stack+0x1c/0x5c [ 224.360196][ T6835] sysfs_create_dir_ns+0x244/0x264 [ 224.361132][ T6835] kobject_add_internal+0x5ac/0xc3c [ 224.362071][ T6835] kobject_init_and_add+0x124/0x190 [ 224.362951][ T6835] gfs2_sys_fs_add+0x200/0x41c [ 224.363743][ T6835] gfs2_fill_super+0xddc/0x1a18 [ 224.364607][ T6835] get_tree_bdev+0x358/0x544 [ 224.365370][ T6835] gfs2_get_tree+0x54/0x1b4 [ 224.366100][ T6835] vfs_get_tree+0x90/0x274 [ 224.366782][ T6835] do_new_mount+0x228/0x810 [ 224.367541][ T6835] path_mount+0x5bc/0x1008 [ 224.368277][ T6835] __arm64_sys_mount+0x514/0x5f0 [ 224.369135][ T6835] invoke_syscall+0x98/0x2b0 [ 224.369886][ T6835] el0_svc_common+0x138/0x258 [ 224.370661][ T6835] do_el0_svc+0x58/0x13c [ 224.371384][ T6835] el0_svc+0x78/0x1d0 [ 224.372027][ T6835] el0t_64_sync_handler+0xcc/0xe4 [ 224.372899][ T6835] el0t_64_sync+0x1a0/0x1a4 [ 224.374106][ T6835] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.376151][ T6835] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.513903][ T6838] loop1: detected capacity change from 0 to 32768 [ 224.552236][ T6838] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.553441][ T6838] CPU: 1 PID: 6838 Comm: syz.1.636 Not tainted syzkaller #0 [ 224.554562][ T6838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 224.556271][ T6838] Call trace: [ 224.556802][ T6838] dump_backtrace+0x0/0x458 [ 224.557653][ T6838] show_stack+0x2c/0x3c [ 224.558385][ T6838] __dump_stack+0x30/0x40 [ 224.559128][ T6838] dump_stack_lvl+0xf4/0x15c [ 224.559879][ T6838] dump_stack+0x1c/0x5c [ 224.560565][ T6838] sysfs_create_dir_ns+0x244/0x264 [ 224.561419][ T6838] kobject_add_internal+0x5ac/0xc3c [ 224.562354][ T6838] kobject_init_and_add+0x124/0x190 [ 224.563222][ T6838] gfs2_sys_fs_add+0x200/0x41c [ 224.564061][ T6838] gfs2_fill_super+0xddc/0x1a18 [ 224.564870][ T6838] get_tree_bdev+0x358/0x544 [ 224.565632][ T6838] gfs2_get_tree+0x54/0x1b4 [ 224.566413][ T6838] vfs_get_tree+0x90/0x274 [ 224.567166][ T6838] do_new_mount+0x228/0x810 [ 224.567833][ T6838] path_mount+0x5bc/0x1008 [ 224.568581][ T6838] __arm64_sys_mount+0x514/0x5f0 [ 224.569356][ T6838] invoke_syscall+0x98/0x2b0 [ 224.570089][ T6838] el0_svc_common+0x138/0x258 [ 224.570837][ T6838] do_el0_svc+0x58/0x13c [ 224.571412][ T6838] el0_svc+0x78/0x1d0 [ 224.572087][ T6838] el0t_64_sync_handler+0xcc/0xe4 [ 224.572920][ T6838] el0t_64_sync+0x1a0/0x1a4 [ 224.574010][ T6838] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.576135][ T6838] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.759369][ T6841] loop1: detected capacity change from 0 to 32768 [ 224.767197][ T6841] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.768362][ T6841] CPU: 0 PID: 6841 Comm: syz.1.637 Not tainted syzkaller #0 [ 224.769520][ T6841] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 224.771108][ T6841] Call trace: [ 224.771721][ T6841] dump_backtrace+0x0/0x458 [ 224.772503][ T6841] show_stack+0x2c/0x3c [ 224.773221][ T6841] __dump_stack+0x30/0x40 [ 224.773991][ T6841] dump_stack_lvl+0xf4/0x15c [ 224.774761][ T6841] dump_stack+0x1c/0x5c [ 224.775435][ T6841] sysfs_create_dir_ns+0x244/0x264 [ 224.776281][ T6841] kobject_add_internal+0x5ac/0xc3c [ 224.777144][ T6841] kobject_init_and_add+0x124/0x190 [ 224.777961][ T6841] gfs2_sys_fs_add+0x200/0x41c [ 224.778745][ T6841] gfs2_fill_super+0xddc/0x1a18 [ 224.779557][ T6841] get_tree_bdev+0x358/0x544 [ 224.780392][ T6841] gfs2_get_tree+0x54/0x1b4 [ 224.781142][ T6841] vfs_get_tree+0x90/0x274 [ 224.781886][ T6841] do_new_mount+0x228/0x810 [ 224.782629][ T6841] path_mount+0x5bc/0x1008 [ 224.783374][ T6841] __arm64_sys_mount+0x514/0x5f0 [ 224.784202][ T6841] invoke_syscall+0x98/0x2b0 [ 224.784966][ T6841] el0_svc_common+0x138/0x258 [ 224.785721][ T6841] do_el0_svc+0x58/0x13c [ 224.786407][ T6841] el0_svc+0x78/0x1d0 [ 224.787066][ T6841] el0t_64_sync_handler+0xcc/0xe4 [ 224.787869][ T6841] el0t_64_sync+0x1a0/0x1a4 [ 224.791720][ T6841] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.793859][ T6841] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.933694][ T6844] loop1: detected capacity change from 0 to 32768 [ 224.992071][ T6844] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.993265][ T6844] CPU: 0 PID: 6844 Comm: syz.1.638 Not tainted syzkaller #0 [ 224.994454][ T6844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 224.996106][ T6844] Call trace: [ 224.996680][ T6844] dump_backtrace+0x0/0x458 [ 224.997466][ T6844] show_stack+0x2c/0x3c [ 224.998126][ T6844] __dump_stack+0x30/0x40 [ 224.998813][ T6844] dump_stack_lvl+0xf4/0x15c [ 224.999483][ T6844] dump_stack+0x1c/0x5c [ 225.000204][ T6844] sysfs_create_dir_ns+0x244/0x264 [ 225.001017][ T6844] kobject_add_internal+0x5ac/0xc3c [ 225.001886][ T6844] kobject_init_and_add+0x124/0x190 [ 225.002807][ T6844] gfs2_sys_fs_add+0x200/0x41c [ 225.003563][ T6844] gfs2_fill_super+0xddc/0x1a18 [ 225.004362][ T6844] get_tree_bdev+0x358/0x544 [ 225.005066][ T6844] gfs2_get_tree+0x54/0x1b4 [ 225.005855][ T6844] vfs_get_tree+0x90/0x274 [ 225.006586][ T6844] do_new_mount+0x228/0x810 [ 225.007343][ T6844] path_mount+0x5bc/0x1008 [ 225.008080][ T6844] __arm64_sys_mount+0x514/0x5f0 [ 225.008867][ T6844] invoke_syscall+0x98/0x2b0 [ 225.009628][ T6844] el0_svc_common+0x138/0x258 [ 225.010327][ T6844] do_el0_svc+0x58/0x13c [ 225.010968][ T6844] el0_svc+0x78/0x1d0 [ 225.011607][ T6844] el0t_64_sync_handler+0xcc/0xe4 [ 225.012525][ T6844] el0t_64_sync+0x1a0/0x1a4 [ 225.014017][ T6844] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.016120][ T6844] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.161061][ T6847] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.162280][ T6847] CPU: 0 PID: 6847 Comm: syz.1.639 Not tainted syzkaller #0 [ 225.163459][ T6847] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 225.165207][ T6847] Call trace: [ 225.165751][ T6847] dump_backtrace+0x0/0x458 [ 225.166544][ T6847] show_stack+0x2c/0x3c [ 225.167250][ T6847] __dump_stack+0x30/0x40 [ 225.168033][ T6847] dump_stack_lvl+0xf4/0x15c [ 225.168728][ T6847] dump_stack+0x1c/0x5c [ 225.169493][ T6847] sysfs_create_dir_ns+0x244/0x264 [ 225.170399][ T6847] kobject_add_internal+0x5ac/0xc3c [ 225.171257][ T6847] kobject_init_and_add+0x124/0x190 [ 225.172159][ T6847] gfs2_sys_fs_add+0x200/0x41c [ 225.172878][ T6847] gfs2_fill_super+0xddc/0x1a18 [ 225.173756][ T6847] get_tree_bdev+0x358/0x544 [ 225.174489][ T6847] gfs2_get_tree+0x54/0x1b4 [ 225.175263][ T6847] vfs_get_tree+0x90/0x274 [ 225.176000][ T6847] do_new_mount+0x228/0x810 [ 225.176766][ T6847] path_mount+0x5bc/0x1008 [ 225.177491][ T6847] __arm64_sys_mount+0x514/0x5f0 [ 225.178334][ T6847] invoke_syscall+0x98/0x2b0 [ 225.179143][ T6847] el0_svc_common+0x138/0x258 [ 225.179982][ T6847] do_el0_svc+0x58/0x13c [ 225.180675][ T6847] el0_svc+0x78/0x1d0 [ 225.181317][ T6847] el0t_64_sync_handler+0xcc/0xe4 [ 225.182172][ T6847] el0t_64_sync+0x1a0/0x1a4 [ 225.183959][ T6847] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.185985][ T6847] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.328024][ T6850] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.329322][ T6850] CPU: 1 PID: 6850 Comm: syz.1.640 Not tainted syzkaller #0 [ 225.330491][ T6850] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 225.332235][ T6850] Call trace: [ 225.332810][ T6850] dump_backtrace+0x0/0x458 [ 225.333490][ T6850] show_stack+0x2c/0x3c [ 225.334312][ T6850] __dump_stack+0x30/0x40 [ 225.335007][ T6850] dump_stack_lvl+0xf4/0x15c [ 225.335815][ T6850] dump_stack+0x1c/0x5c [ 225.336582][ T6850] sysfs_create_dir_ns+0x244/0x264 [ 225.337454][ T6850] kobject_add_internal+0x5ac/0xc3c [ 225.338282][ T6850] kobject_init_and_add+0x124/0x190 [ 225.339161][ T6850] gfs2_sys_fs_add+0x200/0x41c [ 225.339945][ T6850] gfs2_fill_super+0xddc/0x1a18 [ 225.340699][ T6850] get_tree_bdev+0x358/0x544 [ 225.341470][ T6850] gfs2_get_tree+0x54/0x1b4 [ 225.342236][ T6850] vfs_get_tree+0x90/0x274 [ 225.343022][ T6850] do_new_mount+0x228/0x810 [ 225.343743][ T6850] path_mount+0x5bc/0x1008 [ 225.344416][ T6850] __arm64_sys_mount+0x514/0x5f0 [ 225.345215][ T6850] invoke_syscall+0x98/0x2b0 [ 225.345990][ T6850] el0_svc_common+0x138/0x258 [ 225.346746][ T6850] do_el0_svc+0x58/0x13c [ 225.347478][ T6850] el0_svc+0x78/0x1d0 [ 225.348142][ T6850] el0t_64_sync_handler+0xcc/0xe4 [ 225.349003][ T6850] el0t_64_sync+0x1a0/0x1a4 [ 225.351381][ T6850] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.353306][ T6850] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.450606][ T4647] Bluetooth: hci2: command 0x040f tx timeout [ 225.534920][ T6853] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.536125][ T6853] CPU: 1 PID: 6853 Comm: syz.1.641 Not tainted syzkaller #0 [ 225.537359][ T6853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 225.539086][ T6853] Call trace: [ 225.539608][ T6853] dump_backtrace+0x0/0x458 [ 225.540332][ T6853] show_stack+0x2c/0x3c [ 225.540989][ T6853] __dump_stack+0x30/0x40 [ 225.541699][ T6853] dump_stack_lvl+0xf4/0x15c [ 225.542437][ T6853] dump_stack+0x1c/0x5c [ 225.543133][ T6853] sysfs_create_dir_ns+0x244/0x264 [ 225.544053][ T6853] kobject_add_internal+0x5ac/0xc3c [ 225.544966][ T6853] kobject_init_and_add+0x124/0x190 [ 225.545854][ T6853] gfs2_sys_fs_add+0x200/0x41c [ 225.546605][ T6853] gfs2_fill_super+0xddc/0x1a18 [ 225.547471][ T6853] get_tree_bdev+0x358/0x544 [ 225.548217][ T6853] gfs2_get_tree+0x54/0x1b4 [ 225.549003][ T6853] vfs_get_tree+0x90/0x274 [ 225.549700][ T6853] do_new_mount+0x228/0x810 [ 225.550436][ T6853] path_mount+0x5bc/0x1008 [ 225.551204][ T6853] __arm64_sys_mount+0x514/0x5f0 [ 225.552058][ T6853] invoke_syscall+0x98/0x2b0 [ 225.552824][ T6853] el0_svc_common+0x138/0x258 [ 225.553587][ T6853] do_el0_svc+0x58/0x13c [ 225.554289][ T6853] el0_svc+0x78/0x1d0 [ 225.554963][ T6853] el0t_64_sync_handler+0xcc/0xe4 [ 225.555839][ T6853] el0t_64_sync+0x1a0/0x1a4 [ 225.557087][ T6853] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.559190][ T6853] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.706885][ T6856] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.708262][ T6856] CPU: 1 PID: 6856 Comm: syz.1.642 Not tainted syzkaller #0 [ 225.709479][ T6856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 225.711141][ T6856] Call trace: [ 225.711708][ T6856] dump_backtrace+0x0/0x458 [ 225.712480][ T6856] show_stack+0x2c/0x3c [ 225.713210][ T6856] __dump_stack+0x30/0x40 [ 225.713907][ T6856] dump_stack_lvl+0xf4/0x15c [ 225.714627][ T6856] dump_stack+0x1c/0x5c [ 225.715327][ T6856] sysfs_create_dir_ns+0x244/0x264 [ 225.716184][ T6856] kobject_add_internal+0x5ac/0xc3c [ 225.717157][ T6856] kobject_init_and_add+0x124/0x190 [ 225.717994][ T6856] gfs2_sys_fs_add+0x200/0x41c [ 225.718757][ T6856] gfs2_fill_super+0xddc/0x1a18 [ 225.719536][ T6856] get_tree_bdev+0x358/0x544 [ 225.720250][ T6856] gfs2_get_tree+0x54/0x1b4 [ 225.721028][ T6856] vfs_get_tree+0x90/0x274 [ 225.721759][ T6856] do_new_mount+0x228/0x810 [ 225.722507][ T6856] path_mount+0x5bc/0x1008 [ 225.723236][ T6856] __arm64_sys_mount+0x514/0x5f0 [ 225.724065][ T6856] invoke_syscall+0x98/0x2b0 [ 225.724867][ T6856] el0_svc_common+0x138/0x258 [ 225.725654][ T6856] do_el0_svc+0x58/0x13c [ 225.726303][ T6856] el0_svc+0x78/0x1d0 [ 225.726891][ T6856] el0t_64_sync_handler+0xcc/0xe4 [ 225.727689][ T6856] el0t_64_sync+0x1a0/0x1a4 [ 225.731358][ T6856] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.733401][ T6856] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.915482][ T6859] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.916594][ T6859] CPU: 1 PID: 6859 Comm: syz.1.643 Not tainted syzkaller #0 [ 225.917702][ T6859] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 225.919368][ T6859] Call trace: [ 225.919962][ T6859] dump_backtrace+0x0/0x458 [ 225.920703][ T6859] show_stack+0x2c/0x3c [ 225.921412][ T6859] __dump_stack+0x30/0x40 [ 225.922188][ T6859] dump_stack_lvl+0xf4/0x15c [ 225.922968][ T6859] dump_stack+0x1c/0x5c [ 225.923653][ T6859] sysfs_create_dir_ns+0x244/0x264 [ 225.924514][ T6859] kobject_add_internal+0x5ac/0xc3c [ 225.925437][ T6859] kobject_init_and_add+0x124/0x190 [ 225.926293][ T6859] gfs2_sys_fs_add+0x200/0x41c [ 225.927093][ T6859] gfs2_fill_super+0xddc/0x1a18 [ 225.927892][ T6859] get_tree_bdev+0x358/0x544 [ 225.928618][ T6859] gfs2_get_tree+0x54/0x1b4 [ 225.929308][ T6859] vfs_get_tree+0x90/0x274 [ 225.930010][ T6859] do_new_mount+0x228/0x810 [ 225.930725][ T6859] path_mount+0x5bc/0x1008 [ 225.931467][ T6859] __arm64_sys_mount+0x514/0x5f0 [ 225.932323][ T6859] invoke_syscall+0x98/0x2b0 [ 225.933054][ T6859] el0_svc_common+0x138/0x258 [ 225.933772][ T6859] do_el0_svc+0x58/0x13c [ 225.934479][ T6859] el0_svc+0x78/0x1d0 [ 225.935120][ T6859] el0t_64_sync_handler+0xcc/0xe4 [ 225.935872][ T6859] el0t_64_sync+0x1a0/0x1a4 [ 225.938869][ T6859] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.941024][ T6859] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.111751][ T6862] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.113027][ T6862] CPU: 1 PID: 6862 Comm: syz.1.644 Not tainted syzkaller #0 [ 226.114241][ T6862] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 226.115826][ T6862] Call trace: [ 226.116333][ T6862] dump_backtrace+0x0/0x458 [ 226.117099][ T6862] show_stack+0x2c/0x3c [ 226.117767][ T6862] __dump_stack+0x30/0x40 [ 226.118440][ T6862] dump_stack_lvl+0xf4/0x15c [ 226.119142][ T6862] dump_stack+0x1c/0x5c [ 226.119836][ T6862] sysfs_create_dir_ns+0x244/0x264 [ 226.120763][ T6862] kobject_add_internal+0x5ac/0xc3c [ 226.121636][ T6862] kobject_init_and_add+0x124/0x190 [ 226.122518][ T6862] gfs2_sys_fs_add+0x200/0x41c [ 226.123288][ T6862] gfs2_fill_super+0xddc/0x1a18 [ 226.124063][ T6862] get_tree_bdev+0x358/0x544 [ 226.124825][ T6862] gfs2_get_tree+0x54/0x1b4 [ 226.125595][ T6862] vfs_get_tree+0x90/0x274 [ 226.126326][ T6862] do_new_mount+0x228/0x810 [ 226.127082][ T6862] path_mount+0x5bc/0x1008 [ 226.127869][ T6862] __arm64_sys_mount+0x514/0x5f0 [ 226.128763][ T6862] invoke_syscall+0x98/0x2b0 [ 226.129536][ T6862] el0_svc_common+0x138/0x258 [ 226.130301][ T6862] do_el0_svc+0x58/0x13c [ 226.130981][ T6862] el0_svc+0x78/0x1d0 [ 226.131617][ T6862] el0t_64_sync_handler+0xcc/0xe4 [ 226.132488][ T6862] el0t_64_sync+0x1a0/0x1a4 [ 226.134756][ T6862] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.136819][ T6862] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.284764][ T6865] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.285968][ T6865] CPU: 0 PID: 6865 Comm: syz.1.645 Not tainted syzkaller #0 [ 226.287115][ T6865] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 226.288773][ T6865] Call trace: [ 226.289338][ T6865] dump_backtrace+0x0/0x458 [ 226.290095][ T6865] show_stack+0x2c/0x3c [ 226.290782][ T6865] __dump_stack+0x30/0x40 [ 226.291506][ T6865] dump_stack_lvl+0xf4/0x15c [ 226.292298][ T6865] dump_stack+0x1c/0x5c [ 226.292969][ T6865] sysfs_create_dir_ns+0x244/0x264 [ 226.293811][ T6865] kobject_add_internal+0x5ac/0xc3c [ 226.294699][ T6865] kobject_init_and_add+0x124/0x190 [ 226.295640][ T6865] gfs2_sys_fs_add+0x200/0x41c [ 226.296402][ T6865] gfs2_fill_super+0xddc/0x1a18 [ 226.297210][ T6865] get_tree_bdev+0x358/0x544 [ 226.297898][ T6865] gfs2_get_tree+0x54/0x1b4 [ 226.298597][ T6865] vfs_get_tree+0x90/0x274 [ 226.299326][ T6865] do_new_mount+0x228/0x810 [ 226.300058][ T6865] path_mount+0x5bc/0x1008 [ 226.300879][ T6865] __arm64_sys_mount+0x514/0x5f0 [ 226.301687][ T6865] invoke_syscall+0x98/0x2b0 [ 226.302478][ T6865] el0_svc_common+0x138/0x258 [ 226.303312][ T6865] do_el0_svc+0x58/0x13c [ 226.304014][ T6865] el0_svc+0x78/0x1d0 [ 226.304708][ T6865] el0t_64_sync_handler+0xcc/0xe4 [ 226.305553][ T6865] el0t_64_sync+0x1a0/0x1a4 [ 226.307926][ T6865] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.309949][ T6865] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.484353][ T6868] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.485851][ T6868] CPU: 0 PID: 6868 Comm: syz.1.646 Not tainted syzkaller #0 [ 226.486885][ T6868] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 226.488533][ T6868] Call trace: [ 226.489028][ T6868] dump_backtrace+0x0/0x458 [ 226.489676][ T6868] show_stack+0x2c/0x3c [ 226.490393][ T6868] __dump_stack+0x30/0x40 [ 226.491084][ T6868] dump_stack_lvl+0xf4/0x15c [ 226.491815][ T6868] dump_stack+0x1c/0x5c [ 226.492481][ T6868] sysfs_create_dir_ns+0x244/0x264 [ 226.493341][ T6868] kobject_add_internal+0x5ac/0xc3c [ 226.494170][ T6868] kobject_init_and_add+0x124/0x190 [ 226.495008][ T6868] gfs2_sys_fs_add+0x200/0x41c [ 226.495762][ T6868] gfs2_fill_super+0xddc/0x1a18 [ 226.496519][ T6868] get_tree_bdev+0x358/0x544 [ 226.497292][ T6868] gfs2_get_tree+0x54/0x1b4 [ 226.498045][ T6868] vfs_get_tree+0x90/0x274 [ 226.498719][ T6868] do_new_mount+0x228/0x810 [ 226.499426][ T6868] path_mount+0x5bc/0x1008 [ 226.500130][ T6868] __arm64_sys_mount+0x514/0x5f0 [ 226.500939][ T6868] invoke_syscall+0x98/0x2b0 [ 226.501674][ T6868] el0_svc_common+0x138/0x258 [ 226.502399][ T6868] do_el0_svc+0x58/0x13c [ 226.503112][ T6868] el0_svc+0x78/0x1d0 [ 226.503817][ T6868] el0t_64_sync_handler+0xcc/0xe4 [ 226.504657][ T6868] el0t_64_sync+0x1a0/0x1a4 [ 226.505927][ T6868] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.507979][ T6868] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.696225][ T6871] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.697428][ T6871] CPU: 0 PID: 6871 Comm: syz.1.647 Not tainted syzkaller #0 [ 226.698679][ T6871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 226.700297][ T6871] Call trace: [ 226.700832][ T6871] dump_backtrace+0x0/0x458 [ 226.701557][ T6871] show_stack+0x2c/0x3c [ 226.702221][ T6871] __dump_stack+0x30/0x40 [ 226.702925][ T6871] dump_stack_lvl+0xf4/0x15c [ 226.703659][ T6871] dump_stack+0x1c/0x5c [ 226.704338][ T6871] sysfs_create_dir_ns+0x244/0x264 [ 226.705152][ T6871] kobject_add_internal+0x5ac/0xc3c [ 226.706019][ T6871] kobject_init_and_add+0x124/0x190 [ 226.706901][ T6871] gfs2_sys_fs_add+0x200/0x41c [ 226.707739][ T6871] gfs2_fill_super+0xddc/0x1a18 [ 226.708468][ T6871] get_tree_bdev+0x358/0x544 [ 226.709243][ T6871] gfs2_get_tree+0x54/0x1b4 [ 226.709968][ T6871] vfs_get_tree+0x90/0x274 [ 226.710636][ T6871] do_new_mount+0x228/0x810 [ 226.711375][ T6871] path_mount+0x5bc/0x1008 [ 226.712109][ T6871] __arm64_sys_mount+0x514/0x5f0 [ 226.712970][ T6871] invoke_syscall+0x98/0x2b0 [ 226.713724][ T6871] el0_svc_common+0x138/0x258 [ 226.714494][ T6871] do_el0_svc+0x58/0x13c [ 226.715206][ T6871] el0_svc+0x78/0x1d0 [ 226.715913][ T6871] el0t_64_sync_handler+0xcc/0xe4 [ 226.716808][ T6871] el0t_64_sync+0x1a0/0x1a4 [ 226.717729][ T6871] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.719906][ T6871] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.901722][ T6874] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.902958][ T6874] CPU: 0 PID: 6874 Comm: syz.1.648 Not tainted syzkaller #0 [ 226.904152][ T6874] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 226.905799][ T6874] Call trace: [ 226.906315][ T6874] dump_backtrace+0x0/0x458 [ 226.907043][ T6874] show_stack+0x2c/0x3c [ 226.907744][ T6874] __dump_stack+0x30/0x40 [ 226.908484][ T6874] dump_stack_lvl+0xf4/0x15c [ 226.909231][ T6874] dump_stack+0x1c/0x5c [ 226.909943][ T6874] sysfs_create_dir_ns+0x244/0x264 [ 226.910816][ T6874] kobject_add_internal+0x5ac/0xc3c [ 226.911693][ T6874] kobject_init_and_add+0x124/0x190 [ 226.912575][ T6874] gfs2_sys_fs_add+0x200/0x41c [ 226.913382][ T6874] gfs2_fill_super+0xddc/0x1a18 [ 226.914145][ T6874] get_tree_bdev+0x358/0x544 [ 226.914888][ T6874] gfs2_get_tree+0x54/0x1b4 [ 226.915572][ T6874] vfs_get_tree+0x90/0x274 [ 226.916297][ T6874] do_new_mount+0x228/0x810 [ 226.916936][ T6874] path_mount+0x5bc/0x1008 [ 226.917589][ T6874] __arm64_sys_mount+0x514/0x5f0 [ 226.918370][ T6874] invoke_syscall+0x98/0x2b0 [ 226.919122][ T6874] el0_svc_common+0x138/0x258 [ 226.919815][ T6874] do_el0_svc+0x58/0x13c [ 226.920425][ T6874] el0_svc+0x78/0x1d0 [ 226.921119][ T6874] el0t_64_sync_handler+0xcc/0xe4 [ 226.921976][ T6874] el0t_64_sync+0x1a0/0x1a4 [ 226.922895][ T6874] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.925050][ T6874] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.151874][ T6877] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.153235][ T6877] CPU: 0 PID: 6877 Comm: syz.1.649 Not tainted syzkaller #0 [ 227.154276][ T6877] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 227.155900][ T6877] Call trace: [ 227.156301][ T6877] dump_backtrace+0x0/0x458 [ 227.157079][ T6877] show_stack+0x2c/0x3c [ 227.157729][ T6877] __dump_stack+0x30/0x40 [ 227.158480][ T6877] dump_stack_lvl+0xf4/0x15c [ 227.159205][ T6877] dump_stack+0x1c/0x5c [ 227.159842][ T6877] sysfs_create_dir_ns+0x244/0x264 [ 227.160639][ T6877] kobject_add_internal+0x5ac/0xc3c [ 227.161505][ T6877] kobject_init_and_add+0x124/0x190 [ 227.162407][ T6877] gfs2_sys_fs_add+0x200/0x41c [ 227.163219][ T6877] gfs2_fill_super+0xddc/0x1a18 [ 227.164037][ T6877] get_tree_bdev+0x358/0x544 [ 227.164803][ T6877] gfs2_get_tree+0x54/0x1b4 [ 227.165602][ T6877] vfs_get_tree+0x90/0x274 [ 227.166354][ T6877] do_new_mount+0x228/0x810 [ 227.167104][ T6877] path_mount+0x5bc/0x1008 [ 227.167839][ T6877] __arm64_sys_mount+0x514/0x5f0 [ 227.168739][ T6877] invoke_syscall+0x98/0x2b0 [ 227.169484][ T6877] el0_svc_common+0x138/0x258 [ 227.170220][ T6877] do_el0_svc+0x58/0x13c [ 227.170906][ T6877] el0_svc+0x78/0x1d0 [ 227.171588][ T6877] el0t_64_sync_handler+0xcc/0xe4 [ 227.172412][ T6877] el0t_64_sync+0x1a0/0x1a4 [ 227.173766][ T6877] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.175925][ T6877] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.321388][ T6880] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.322686][ T6880] CPU: 1 PID: 6880 Comm: syz.1.650 Not tainted syzkaller #0 [ 227.323950][ T6880] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 227.325631][ T6880] Call trace: [ 227.326158][ T6880] dump_backtrace+0x0/0x458 [ 227.326904][ T6880] show_stack+0x2c/0x3c [ 227.327481][ T6880] __dump_stack+0x30/0x40 [ 227.328186][ T6880] dump_stack_lvl+0xf4/0x15c [ 227.328894][ T6880] dump_stack+0x1c/0x5c [ 227.329607][ T6880] sysfs_create_dir_ns+0x244/0x264 [ 227.330366][ T6880] kobject_add_internal+0x5ac/0xc3c [ 227.331159][ T6880] kobject_init_and_add+0x124/0x190 [ 227.331991][ T6880] gfs2_sys_fs_add+0x200/0x41c [ 227.332823][ T6880] gfs2_fill_super+0xddc/0x1a18 [ 227.333652][ T6880] get_tree_bdev+0x358/0x544 [ 227.334399][ T6880] gfs2_get_tree+0x54/0x1b4 [ 227.335162][ T6880] vfs_get_tree+0x90/0x274 [ 227.335913][ T6880] do_new_mount+0x228/0x810 [ 227.336740][ T6880] path_mount+0x5bc/0x1008 [ 227.337533][ T6880] __arm64_sys_mount+0x514/0x5f0 [ 227.338405][ T6880] invoke_syscall+0x98/0x2b0 [ 227.339096][ T6880] el0_svc_common+0x138/0x258 [ 227.339904][ T6880] do_el0_svc+0x58/0x13c [ 227.340580][ T6880] el0_svc+0x78/0x1d0 [ 227.341296][ T6880] el0t_64_sync_handler+0xcc/0xe4 [ 227.342089][ T6880] el0t_64_sync+0x1a0/0x1a4 [ 227.345704][ T6880] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.347671][ T6880] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.530467][ T4647] Bluetooth: hci2: command 0x0419 tx timeout [ 227.537427][ T6883] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.538621][ T6883] CPU: 0 PID: 6883 Comm: syz.1.651 Not tainted syzkaller #0 [ 227.539841][ T6883] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 227.541565][ T6883] Call trace: [ 227.542191][ T6883] dump_backtrace+0x0/0x458 [ 227.543010][ T6883] show_stack+0x2c/0x3c [ 227.543708][ T6883] __dump_stack+0x30/0x40 [ 227.544422][ T6883] dump_stack_lvl+0xf4/0x15c [ 227.545186][ T6883] dump_stack+0x1c/0x5c [ 227.545904][ T6883] sysfs_create_dir_ns+0x244/0x264 [ 227.546689][ T6883] kobject_add_internal+0x5ac/0xc3c [ 227.547562][ T6883] kobject_init_and_add+0x124/0x190 [ 227.548414][ T6883] gfs2_sys_fs_add+0x200/0x41c [ 227.549161][ T6883] gfs2_fill_super+0xddc/0x1a18 [ 227.549911][ T6883] get_tree_bdev+0x358/0x544 [ 227.550643][ T6883] gfs2_get_tree+0x54/0x1b4 [ 227.551370][ T6883] vfs_get_tree+0x90/0x274 [ 227.552132][ T6883] do_new_mount+0x228/0x810 [ 227.552867][ T6883] path_mount+0x5bc/0x1008 [ 227.553535][ T6883] __arm64_sys_mount+0x514/0x5f0 [ 227.554381][ T6883] invoke_syscall+0x98/0x2b0 [ 227.555206][ T6883] el0_svc_common+0x138/0x258 [ 227.556026][ T6883] do_el0_svc+0x58/0x13c [ 227.556741][ T6883] el0_svc+0x78/0x1d0 [ 227.557410][ T6883] el0t_64_sync_handler+0xcc/0xe4 [ 227.558261][ T6883] el0t_64_sync+0x1a0/0x1a4 [ 227.559583][ T6883] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.563285][ T6883] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.707371][ T6886] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.708616][ T6886] CPU: 0 PID: 6886 Comm: syz.1.652 Not tainted syzkaller #0 [ 227.709800][ T6886] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 227.711360][ T6886] Call trace: [ 227.711882][ T6886] dump_backtrace+0x0/0x458 [ 227.712615][ T6886] show_stack+0x2c/0x3c [ 227.713312][ T6886] __dump_stack+0x30/0x40 [ 227.714000][ T6886] dump_stack_lvl+0xf4/0x15c [ 227.714741][ T6886] dump_stack+0x1c/0x5c [ 227.715481][ T6886] sysfs_create_dir_ns+0x244/0x264 [ 227.716303][ T6886] kobject_add_internal+0x5ac/0xc3c [ 227.717235][ T6886] kobject_init_and_add+0x124/0x190 [ 227.718010][ T6886] gfs2_sys_fs_add+0x200/0x41c [ 227.718763][ T6886] gfs2_fill_super+0xddc/0x1a18 [ 227.719540][ T6886] get_tree_bdev+0x358/0x544 [ 227.720299][ T6886] gfs2_get_tree+0x54/0x1b4 [ 227.721059][ T6886] vfs_get_tree+0x90/0x274 [ 227.721749][ T6886] do_new_mount+0x228/0x810 [ 227.722498][ T6886] path_mount+0x5bc/0x1008 [ 227.723299][ T6886] __arm64_sys_mount+0x514/0x5f0 [ 227.724186][ T6886] invoke_syscall+0x98/0x2b0 [ 227.724920][ T6886] el0_svc_common+0x138/0x258 [ 227.725731][ T6886] do_el0_svc+0x58/0x13c [ 227.726490][ T6886] el0_svc+0x78/0x1d0 [ 227.727157][ T6886] el0t_64_sync_handler+0xcc/0xe4 [ 227.727917][ T6886] el0t_64_sync+0x1a0/0x1a4 [ 227.729176][ T6886] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.731399][ T6886] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.916453][ T6889] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.917720][ T6889] CPU: 0 PID: 6889 Comm: syz.1.653 Not tainted syzkaller #0 [ 227.918860][ T6889] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 227.920513][ T6889] Call trace: [ 227.921074][ T6889] dump_backtrace+0x0/0x458 [ 227.921875][ T6889] show_stack+0x2c/0x3c [ 227.922576][ T6889] __dump_stack+0x30/0x40 [ 227.923264][ T6889] dump_stack_lvl+0xf4/0x15c [ 227.924049][ T6889] dump_stack+0x1c/0x5c [ 227.924703][ T6889] sysfs_create_dir_ns+0x244/0x264 [ 227.925535][ T6889] kobject_add_internal+0x5ac/0xc3c [ 227.926431][ T6889] kobject_init_and_add+0x124/0x190 [ 227.927312][ T6889] gfs2_sys_fs_add+0x200/0x41c [ 227.928091][ T6889] gfs2_fill_super+0xddc/0x1a18 [ 227.928872][ T6889] get_tree_bdev+0x358/0x544 [ 227.929612][ T6889] gfs2_get_tree+0x54/0x1b4 [ 227.930339][ T6889] vfs_get_tree+0x90/0x274 [ 227.931103][ T6889] do_new_mount+0x228/0x810 [ 227.931845][ T6889] path_mount+0x5bc/0x1008 [ 227.932548][ T6889] __arm64_sys_mount+0x514/0x5f0 [ 227.933369][ T6889] invoke_syscall+0x98/0x2b0 [ 227.934148][ T6889] el0_svc_common+0x138/0x258 [ 227.934874][ T6889] do_el0_svc+0x58/0x13c [ 227.935543][ T6889] el0_svc+0x78/0x1d0 [ 227.936218][ T6889] el0t_64_sync_handler+0xcc/0xe4 [ 227.937029][ T6889] el0t_64_sync+0x1a0/0x1a4 [ 227.938203][ T6889] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.940846][ T6889] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.081563][ T6892] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.082793][ T6892] CPU: 1 PID: 6892 Comm: syz.1.654 Not tainted syzkaller #0 [ 228.083986][ T6892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 228.085586][ T6892] Call trace: [ 228.086105][ T6892] dump_backtrace+0x0/0x458 [ 228.086837][ T6892] show_stack+0x2c/0x3c [ 228.087472][ T6892] __dump_stack+0x30/0x40 [ 228.088148][ T6892] dump_stack_lvl+0xf4/0x15c [ 228.088856][ T6892] dump_stack+0x1c/0x5c [ 228.089506][ T6892] sysfs_create_dir_ns+0x244/0x264 [ 228.090370][ T6892] kobject_add_internal+0x5ac/0xc3c [ 228.091274][ T6892] kobject_init_and_add+0x124/0x190 [ 228.092176][ T6892] gfs2_sys_fs_add+0x200/0x41c [ 228.092957][ T6892] gfs2_fill_super+0xddc/0x1a18 [ 228.093737][ T6892] get_tree_bdev+0x358/0x544 [ 228.094541][ T6892] gfs2_get_tree+0x54/0x1b4 [ 228.095273][ T6892] vfs_get_tree+0x90/0x274 [ 228.096090][ T6892] do_new_mount+0x228/0x810 [ 228.096875][ T6892] path_mount+0x5bc/0x1008 [ 228.097641][ T6892] __arm64_sys_mount+0x514/0x5f0 [ 228.098522][ T6892] invoke_syscall+0x98/0x2b0 [ 228.099264][ T6892] el0_svc_common+0x138/0x258 [ 228.100034][ T6892] do_el0_svc+0x58/0x13c [ 228.100724][ T6892] el0_svc+0x78/0x1d0 [ 228.101398][ T6892] el0t_64_sync_handler+0xcc/0xe4 [ 228.102233][ T6892] el0t_64_sync+0x1a0/0x1a4 [ 228.103486][ T6892] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.105469][ T6892] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:48 executed programs: 641 [ 228.242286][ T6895] set_capacity_and_notify: 16 callbacks suppressed [ 228.242297][ T6895] loop1: detected capacity change from 0 to 32768 [ 228.252113][ T6895] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.253287][ T6895] CPU: 0 PID: 6895 Comm: syz.1.655 Not tainted syzkaller #0 [ 228.254430][ T6895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 228.256078][ T6895] Call trace: [ 228.256589][ T6895] dump_backtrace+0x0/0x458 [ 228.257282][ T6895] show_stack+0x2c/0x3c [ 228.257973][ T6895] __dump_stack+0x30/0x40 [ 228.258708][ T6895] dump_stack_lvl+0xf4/0x15c [ 228.259433][ T6895] dump_stack+0x1c/0x5c [ 228.260238][ T6895] sysfs_create_dir_ns+0x244/0x264 [ 228.261037][ T6895] kobject_add_internal+0x5ac/0xc3c [ 228.261872][ T6895] kobject_init_and_add+0x124/0x190 [ 228.262694][ T6895] gfs2_sys_fs_add+0x200/0x41c [ 228.263532][ T6895] gfs2_fill_super+0xddc/0x1a18 [ 228.264409][ T6895] get_tree_bdev+0x358/0x544 [ 228.265089][ T6895] gfs2_get_tree+0x54/0x1b4 [ 228.265793][ T6895] vfs_get_tree+0x90/0x274 [ 228.266543][ T6895] do_new_mount+0x228/0x810 [ 228.267269][ T6895] path_mount+0x5bc/0x1008 [ 228.268023][ T6895] __arm64_sys_mount+0x514/0x5f0 [ 228.268815][ T6895] invoke_syscall+0x98/0x2b0 [ 228.269582][ T6895] el0_svc_common+0x138/0x258 [ 228.270401][ T6895] do_el0_svc+0x58/0x13c [ 228.271094][ T6895] el0_svc+0x78/0x1d0 [ 228.271698][ T6895] el0t_64_sync_handler+0xcc/0xe4 [ 228.272630][ T6895] el0t_64_sync+0x1a0/0x1a4 [ 228.276753][ T6895] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.278888][ T6895] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.479225][ T6898] loop1: detected capacity change from 0 to 32768 [ 228.540621][ T6898] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.541916][ T6898] CPU: 1 PID: 6898 Comm: syz.1.656 Not tainted syzkaller #0 [ 228.543054][ T6898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 228.544823][ T6898] Call trace: [ 228.545395][ T6898] dump_backtrace+0x0/0x458 [ 228.546077][ T6898] show_stack+0x2c/0x3c [ 228.546790][ T6898] __dump_stack+0x30/0x40 [ 228.547516][ T6898] dump_stack_lvl+0xf4/0x15c [ 228.548270][ T6898] dump_stack+0x1c/0x5c [ 228.548991][ T6898] sysfs_create_dir_ns+0x244/0x264 [ 228.549782][ T6898] kobject_add_internal+0x5ac/0xc3c [ 228.550640][ T6898] kobject_init_and_add+0x124/0x190 [ 228.551490][ T6898] gfs2_sys_fs_add+0x200/0x41c [ 228.552177][ T6898] gfs2_fill_super+0xddc/0x1a18 [ 228.552990][ T6898] get_tree_bdev+0x358/0x544 [ 228.553772][ T6898] gfs2_get_tree+0x54/0x1b4 [ 228.554546][ T6898] vfs_get_tree+0x90/0x274 [ 228.555193][ T6898] do_new_mount+0x228/0x810 [ 228.555883][ T6898] path_mount+0x5bc/0x1008 [ 228.556597][ T6898] __arm64_sys_mount+0x514/0x5f0 [ 228.557380][ T6898] invoke_syscall+0x98/0x2b0 [ 228.558102][ T6898] el0_svc_common+0x138/0x258 [ 228.558890][ T6898] do_el0_svc+0x58/0x13c [ 228.559621][ T6898] el0_svc+0x78/0x1d0 [ 228.560273][ T6898] el0t_64_sync_handler+0xcc/0xe4 [ 228.561082][ T6898] el0t_64_sync+0x1a0/0x1a4 [ 228.562516][ T6898] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.564700][ T6898] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.777708][ T6901] loop1: detected capacity change from 0 to 32768 [ 228.813239][ T6901] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.814458][ T6901] CPU: 1 PID: 6901 Comm: syz.1.657 Not tainted syzkaller #0 [ 228.815646][ T6901] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 228.817335][ T6901] Call trace: [ 228.817959][ T6901] dump_backtrace+0x0/0x458 [ 228.818664][ T6901] show_stack+0x2c/0x3c [ 228.819316][ T6901] __dump_stack+0x30/0x40 [ 228.820039][ T6901] dump_stack_lvl+0xf4/0x15c [ 228.820776][ T6901] dump_stack+0x1c/0x5c [ 228.821603][ T6901] sysfs_create_dir_ns+0x244/0x264 [ 228.822393][ T6901] kobject_add_internal+0x5ac/0xc3c [ 228.823346][ T6901] kobject_init_and_add+0x124/0x190 [ 228.824219][ T6901] gfs2_sys_fs_add+0x200/0x41c [ 228.825063][ T6901] gfs2_fill_super+0xddc/0x1a18 [ 228.825832][ T6901] get_tree_bdev+0x358/0x544 [ 228.826558][ T6901] gfs2_get_tree+0x54/0x1b4 [ 228.827156][ T6901] vfs_get_tree+0x90/0x274 [ 228.827744][ T6901] do_new_mount+0x228/0x810 [ 228.828341][ T6901] path_mount+0x5bc/0x1008 [ 228.828924][ T6901] __arm64_sys_mount+0x514/0x5f0 [ 228.829578][ T6901] invoke_syscall+0x98/0x2b0 [ 228.830189][ T6901] el0_svc_common+0x138/0x258 [ 228.830811][ T6901] do_el0_svc+0x58/0x13c [ 228.831382][ T6901] el0_svc+0x78/0x1d0 [ 228.831919][ T6901] el0t_64_sync_handler+0xcc/0xe4 [ 228.832596][ T6901] el0t_64_sync+0x1a0/0x1a4 [ 228.834714][ T6901] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.836802][ T6901] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.011350][ T6904] loop1: detected capacity change from 0 to 32768 [ 229.056781][ T6904] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.058035][ T6904] CPU: 0 PID: 6904 Comm: syz.1.658 Not tainted syzkaller #0 [ 229.059209][ T6904] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 229.060825][ T6904] Call trace: [ 229.061347][ T6904] dump_backtrace+0x0/0x458 [ 229.062116][ T6904] show_stack+0x2c/0x3c [ 229.062826][ T6904] __dump_stack+0x30/0x40 [ 229.063519][ T6904] dump_stack_lvl+0xf4/0x15c [ 229.064266][ T6904] dump_stack+0x1c/0x5c [ 229.064957][ T6904] sysfs_create_dir_ns+0x244/0x264 [ 229.065850][ T6904] kobject_add_internal+0x5ac/0xc3c [ 229.066736][ T6904] kobject_init_and_add+0x124/0x190 [ 229.067619][ T6904] gfs2_sys_fs_add+0x200/0x41c [ 229.068359][ T6904] gfs2_fill_super+0xddc/0x1a18 [ 229.069306][ T6904] get_tree_bdev+0x358/0x544 [ 229.070155][ T6904] gfs2_get_tree+0x54/0x1b4 [ 229.070910][ T6904] vfs_get_tree+0x90/0x274 [ 229.071741][ T6904] do_new_mount+0x228/0x810 [ 229.072519][ T6904] path_mount+0x5bc/0x1008 [ 229.073226][ T6904] __arm64_sys_mount+0x514/0x5f0 [ 229.074057][ T6904] invoke_syscall+0x98/0x2b0 [ 229.074814][ T6904] el0_svc_common+0x138/0x258 [ 229.075584][ T6904] do_el0_svc+0x58/0x13c [ 229.076229][ T6904] el0_svc+0x78/0x1d0 [ 229.076871][ T6904] el0t_64_sync_handler+0xcc/0xe4 [ 229.077674][ T6904] el0t_64_sync+0x1a0/0x1a4 [ 229.080200][ T6904] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.083681][ T6904] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.245064][ T6907] loop1: detected capacity change from 0 to 32768 [ 229.281946][ T6907] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.283803][ T6907] CPU: 0 PID: 6907 Comm: syz.1.659 Not tainted syzkaller #0 [ 229.284935][ T6907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 229.286760][ T6907] Call trace: [ 229.287339][ T6907] dump_backtrace+0x0/0x458 [ 229.288168][ T6907] show_stack+0x2c/0x3c [ 229.288854][ T6907] __dump_stack+0x30/0x40 [ 229.289672][ T6907] dump_stack_lvl+0xf4/0x15c [ 229.290505][ T6907] dump_stack+0x1c/0x5c [ 229.291260][ T6907] sysfs_create_dir_ns+0x244/0x264 [ 229.292150][ T6907] kobject_add_internal+0x5ac/0xc3c [ 229.293010][ T6907] kobject_init_and_add+0x124/0x190 [ 229.293956][ T6907] gfs2_sys_fs_add+0x200/0x41c [ 229.294739][ T6907] gfs2_fill_super+0xddc/0x1a18 [ 229.295581][ T6907] get_tree_bdev+0x358/0x544 [ 229.296371][ T6907] gfs2_get_tree+0x54/0x1b4 [ 229.297119][ T6907] vfs_get_tree+0x90/0x274 [ 229.297892][ T6907] do_new_mount+0x228/0x810 [ 229.298624][ T6907] path_mount+0x5bc/0x1008 [ 229.299291][ T6907] __arm64_sys_mount+0x514/0x5f0 [ 229.300063][ T6907] invoke_syscall+0x98/0x2b0 [ 229.300851][ T6907] el0_svc_common+0x138/0x258 [ 229.301579][ T6907] do_el0_svc+0x58/0x13c [ 229.302228][ T6907] el0_svc+0x78/0x1d0 [ 229.302884][ T6907] el0t_64_sync_handler+0xcc/0xe4 [ 229.303687][ T6907] el0t_64_sync+0x1a0/0x1a4 [ 229.305593][ T6907] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.307727][ T6907] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.486954][ T6910] loop1: detected capacity change from 0 to 32768 [ 229.522849][ T6910] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.524072][ T6910] CPU: 0 PID: 6910 Comm: syz.1.660 Not tainted syzkaller #0 [ 229.525303][ T6910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 229.527011][ T6910] Call trace: [ 229.527520][ T6910] dump_backtrace+0x0/0x458 [ 229.528289][ T6910] show_stack+0x2c/0x3c [ 229.529004][ T6910] __dump_stack+0x30/0x40 [ 229.529747][ T6910] dump_stack_lvl+0xf4/0x15c [ 229.530457][ T6910] dump_stack+0x1c/0x5c [ 229.531160][ T6910] sysfs_create_dir_ns+0x244/0x264 [ 229.532034][ T6910] kobject_add_internal+0x5ac/0xc3c [ 229.532925][ T6910] kobject_init_and_add+0x124/0x190 [ 229.533760][ T6910] gfs2_sys_fs_add+0x200/0x41c [ 229.534505][ T6910] gfs2_fill_super+0xddc/0x1a18 [ 229.535288][ T6910] get_tree_bdev+0x358/0x544 [ 229.536030][ T6910] gfs2_get_tree+0x54/0x1b4 [ 229.536720][ T6910] vfs_get_tree+0x90/0x274 [ 229.537481][ T6910] do_new_mount+0x228/0x810 [ 229.538281][ T6910] path_mount+0x5bc/0x1008 [ 229.538982][ T6910] __arm64_sys_mount+0x514/0x5f0 [ 229.539744][ T6910] invoke_syscall+0x98/0x2b0 [ 229.540493][ T6910] el0_svc_common+0x138/0x258 [ 229.541276][ T6910] do_el0_svc+0x58/0x13c [ 229.541986][ T6910] el0_svc+0x78/0x1d0 [ 229.542636][ T6910] el0t_64_sync_handler+0xcc/0xe4 [ 229.543455][ T6910] el0t_64_sync+0x1a0/0x1a4 [ 229.544660][ T6910] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.546666][ T6910] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.678493][ T6913] loop1: detected capacity change from 0 to 32768 [ 229.701877][ T6913] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.703129][ T6913] CPU: 1 PID: 6913 Comm: syz.1.661 Not tainted syzkaller #0 [ 229.704233][ T6913] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 229.705957][ T6913] Call trace: [ 229.706487][ T6913] dump_backtrace+0x0/0x458 [ 229.707198][ T6913] show_stack+0x2c/0x3c [ 229.707847][ T6913] __dump_stack+0x30/0x40 [ 229.708567][ T6913] dump_stack_lvl+0xf4/0x15c [ 229.709374][ T6913] dump_stack+0x1c/0x5c [ 229.710023][ T6913] sysfs_create_dir_ns+0x244/0x264 [ 229.710925][ T6913] kobject_add_internal+0x5ac/0xc3c [ 229.711837][ T6913] kobject_init_and_add+0x124/0x190 [ 229.712635][ T6913] gfs2_sys_fs_add+0x200/0x41c [ 229.713438][ T6913] gfs2_fill_super+0xddc/0x1a18 [ 229.714263][ T6913] get_tree_bdev+0x358/0x544 [ 229.714973][ T6913] gfs2_get_tree+0x54/0x1b4 [ 229.715722][ T6913] vfs_get_tree+0x90/0x274 [ 229.716423][ T6913] do_new_mount+0x228/0x810 [ 229.717153][ T6913] path_mount+0x5bc/0x1008 [ 229.717884][ T6913] __arm64_sys_mount+0x514/0x5f0 [ 229.718718][ T6913] invoke_syscall+0x98/0x2b0 [ 229.719487][ T6913] el0_svc_common+0x138/0x258 [ 229.720281][ T6913] do_el0_svc+0x58/0x13c [ 229.721001][ T6913] el0_svc+0x78/0x1d0 [ 229.721637][ T6913] el0t_64_sync_handler+0xcc/0xe4 [ 229.722449][ T6913] el0t_64_sync+0x1a0/0x1a4 [ 229.723776][ T6913] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.725863][ T6913] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.860099][ T6916] loop1: detected capacity change from 0 to 32768 [ 229.868311][ T6916] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.869444][ T6916] CPU: 0 PID: 6916 Comm: syz.1.662 Not tainted syzkaller #0 [ 229.870654][ T6916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 229.872364][ T6916] Call trace: [ 229.872939][ T6916] dump_backtrace+0x0/0x458 [ 229.873761][ T6916] show_stack+0x2c/0x3c [ 229.874476][ T6916] __dump_stack+0x30/0x40 [ 229.875238][ T6916] dump_stack_lvl+0xf4/0x15c [ 229.875996][ T6916] dump_stack+0x1c/0x5c [ 229.876719][ T6916] sysfs_create_dir_ns+0x244/0x264 [ 229.877581][ T6916] kobject_add_internal+0x5ac/0xc3c [ 229.878433][ T6916] kobject_init_and_add+0x124/0x190 [ 229.879265][ T6916] gfs2_sys_fs_add+0x200/0x41c [ 229.880088][ T6916] gfs2_fill_super+0xddc/0x1a18 [ 229.880893][ T6916] get_tree_bdev+0x358/0x544 [ 229.881590][ T6916] gfs2_get_tree+0x54/0x1b4 [ 229.882349][ T6916] vfs_get_tree+0x90/0x274 [ 229.883047][ T6916] do_new_mount+0x228/0x810 [ 229.883731][ T6916] path_mount+0x5bc/0x1008 [ 229.884433][ T6916] __arm64_sys_mount+0x514/0x5f0 [ 229.885407][ T6916] invoke_syscall+0x98/0x2b0 [ 229.886196][ T6916] el0_svc_common+0x138/0x258 [ 229.887006][ T6916] do_el0_svc+0x58/0x13c [ 229.887698][ T6916] el0_svc+0x78/0x1d0 [ 229.888420][ T6916] el0t_64_sync_handler+0xcc/0xe4 [ 229.889185][ T6916] el0t_64_sync+0x1a0/0x1a4 [ 229.893229][ T6916] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.895306][ T6916] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.032177][ T6919] loop1: detected capacity change from 0 to 32768 [ 230.039714][ T6919] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.040941][ T6919] CPU: 1 PID: 6919 Comm: syz.1.663 Not tainted syzkaller #0 [ 230.042105][ T6919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 230.043787][ T6919] Call trace: [ 230.044360][ T6919] dump_backtrace+0x0/0x458 [ 230.045122][ T6919] show_stack+0x2c/0x3c [ 230.045858][ T6919] __dump_stack+0x30/0x40 [ 230.046513][ T6919] dump_stack_lvl+0xf4/0x15c [ 230.047234][ T6919] dump_stack+0x1c/0x5c [ 230.047960][ T6919] sysfs_create_dir_ns+0x244/0x264 [ 230.048829][ T6919] kobject_add_internal+0x5ac/0xc3c [ 230.049660][ T6919] kobject_init_and_add+0x124/0x190 [ 230.050391][ T6919] gfs2_sys_fs_add+0x200/0x41c [ 230.051151][ T6919] gfs2_fill_super+0xddc/0x1a18 [ 230.051969][ T6919] get_tree_bdev+0x358/0x544 [ 230.052741][ T6919] gfs2_get_tree+0x54/0x1b4 [ 230.053465][ T6919] vfs_get_tree+0x90/0x274 [ 230.054236][ T6919] do_new_mount+0x228/0x810 [ 230.054968][ T6919] path_mount+0x5bc/0x1008 [ 230.055749][ T6919] __arm64_sys_mount+0x514/0x5f0 [ 230.056599][ T6919] invoke_syscall+0x98/0x2b0 [ 230.057389][ T6919] el0_svc_common+0x138/0x258 [ 230.058176][ T6919] do_el0_svc+0x58/0x13c [ 230.058905][ T6919] el0_svc+0x78/0x1d0 [ 230.059571][ T6919] el0t_64_sync_handler+0xcc/0xe4 [ 230.060370][ T6919] el0t_64_sync+0x1a0/0x1a4 [ 230.063156][ T6919] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.065224][ T6919] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.197797][ T6922] loop1: detected capacity change from 0 to 32768 [ 230.305700][ T6922] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.307034][ T6922] CPU: 1 PID: 6922 Comm: syz.1.664 Not tainted syzkaller #0 [ 230.308195][ T6922] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 230.309845][ T6922] Call trace: [ 230.310385][ T6922] dump_backtrace+0x0/0x458 [ 230.311100][ T6922] show_stack+0x2c/0x3c [ 230.311848][ T6922] __dump_stack+0x30/0x40 [ 230.312615][ T6922] dump_stack_lvl+0xf4/0x15c [ 230.313327][ T6922] dump_stack+0x1c/0x5c [ 230.314017][ T6922] sysfs_create_dir_ns+0x244/0x264 [ 230.314857][ T6922] kobject_add_internal+0x5ac/0xc3c [ 230.315739][ T6922] kobject_init_and_add+0x124/0x190 [ 230.316603][ T6922] gfs2_sys_fs_add+0x200/0x41c [ 230.317437][ T6922] gfs2_fill_super+0xddc/0x1a18 [ 230.318284][ T6922] get_tree_bdev+0x358/0x544 [ 230.319052][ T6922] gfs2_get_tree+0x54/0x1b4 [ 230.319815][ T6922] vfs_get_tree+0x90/0x274 [ 230.320503][ T6922] do_new_mount+0x228/0x810 [ 230.321272][ T6922] path_mount+0x5bc/0x1008 [ 230.322060][ T6922] __arm64_sys_mount+0x514/0x5f0 [ 230.322897][ T6922] invoke_syscall+0x98/0x2b0 [ 230.323714][ T6922] el0_svc_common+0x138/0x258 [ 230.324490][ T6922] do_el0_svc+0x58/0x13c [ 230.325207][ T6922] el0_svc+0x78/0x1d0 [ 230.325884][ T6922] el0t_64_sync_handler+0xcc/0xe4 [ 230.326712][ T6922] el0t_64_sync+0x1a0/0x1a4 [ 230.327846][ T6922] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.329876][ T6922] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.512489][ T6925] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.514083][ T6925] CPU: 1 PID: 6925 Comm: syz.1.665 Not tainted syzkaller #0 [ 230.515279][ T6925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 230.517020][ T6925] Call trace: [ 230.517550][ T6925] dump_backtrace+0x0/0x458 [ 230.518293][ T6925] show_stack+0x2c/0x3c [ 230.518959][ T6925] __dump_stack+0x30/0x40 [ 230.519575][ T6925] dump_stack_lvl+0xf4/0x15c [ 230.520308][ T6925] dump_stack+0x1c/0x5c [ 230.520982][ T6925] sysfs_create_dir_ns+0x244/0x264 [ 230.521861][ T6925] kobject_add_internal+0x5ac/0xc3c [ 230.522700][ T6925] kobject_init_and_add+0x124/0x190 [ 230.523588][ T6925] gfs2_sys_fs_add+0x200/0x41c [ 230.524365][ T6925] gfs2_fill_super+0xddc/0x1a18 [ 230.525143][ T6925] get_tree_bdev+0x358/0x544 [ 230.525973][ T6925] gfs2_get_tree+0x54/0x1b4 [ 230.526727][ T6925] vfs_get_tree+0x90/0x274 [ 230.527490][ T6925] do_new_mount+0x228/0x810 [ 230.528210][ T6925] path_mount+0x5bc/0x1008 [ 230.528909][ T6925] __arm64_sys_mount+0x514/0x5f0 [ 230.529826][ T6925] invoke_syscall+0x98/0x2b0 [ 230.530622][ T6925] el0_svc_common+0x138/0x258 [ 230.531458][ T6925] do_el0_svc+0x58/0x13c [ 230.532132][ T6925] el0_svc+0x78/0x1d0 [ 230.532796][ T6925] el0t_64_sync_handler+0xcc/0xe4 [ 230.533558][ T6925] el0t_64_sync+0x1a0/0x1a4 [ 230.534476][ T6925] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.536561][ T6925] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.683911][ T6928] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.685101][ T6928] CPU: 1 PID: 6928 Comm: syz.1.666 Not tainted syzkaller #0 [ 230.686291][ T6928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 230.687837][ T6928] Call trace: [ 230.688342][ T6928] dump_backtrace+0x0/0x458 [ 230.688997][ T6928] show_stack+0x2c/0x3c [ 230.689674][ T6928] __dump_stack+0x30/0x40 [ 230.690402][ T6928] dump_stack_lvl+0xf4/0x15c [ 230.691134][ T6928] dump_stack+0x1c/0x5c [ 230.691813][ T6928] sysfs_create_dir_ns+0x244/0x264 [ 230.692699][ T6928] kobject_add_internal+0x5ac/0xc3c [ 230.693607][ T6928] kobject_init_and_add+0x124/0x190 [ 230.694454][ T6928] gfs2_sys_fs_add+0x200/0x41c [ 230.695218][ T6928] gfs2_fill_super+0xddc/0x1a18 [ 230.695987][ T6928] get_tree_bdev+0x358/0x544 [ 230.696671][ T6928] gfs2_get_tree+0x54/0x1b4 [ 230.697328][ T6928] vfs_get_tree+0x90/0x274 [ 230.698010][ T6928] do_new_mount+0x228/0x810 [ 230.698758][ T6928] path_mount+0x5bc/0x1008 [ 230.699496][ T6928] __arm64_sys_mount+0x514/0x5f0 [ 230.700312][ T6928] invoke_syscall+0x98/0x2b0 [ 230.701068][ T6928] el0_svc_common+0x138/0x258 [ 230.701826][ T6928] do_el0_svc+0x58/0x13c [ 230.702500][ T6928] el0_svc+0x78/0x1d0 [ 230.703145][ T6928] el0t_64_sync_handler+0xcc/0xe4 [ 230.703990][ T6928] el0t_64_sync+0x1a0/0x1a4 [ 230.705461][ T6928] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.707431][ T6928] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.886608][ T6931] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.887805][ T6931] CPU: 1 PID: 6931 Comm: syz.1.667 Not tainted syzkaller #0 [ 230.889081][ T6931] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 230.890720][ T6931] Call trace: [ 230.891213][ T6931] dump_backtrace+0x0/0x458 [ 230.891936][ T6931] show_stack+0x2c/0x3c [ 230.892610][ T6931] __dump_stack+0x30/0x40 [ 230.893331][ T6931] dump_stack_lvl+0xf4/0x15c [ 230.894080][ T6931] dump_stack+0x1c/0x5c [ 230.894738][ T6931] sysfs_create_dir_ns+0x244/0x264 [ 230.895573][ T6931] kobject_add_internal+0x5ac/0xc3c [ 230.896439][ T6931] kobject_init_and_add+0x124/0x190 [ 230.897261][ T6931] gfs2_sys_fs_add+0x200/0x41c [ 230.898055][ T6931] gfs2_fill_super+0xddc/0x1a18 [ 230.898821][ T6931] get_tree_bdev+0x358/0x544 [ 230.899581][ T6931] gfs2_get_tree+0x54/0x1b4 [ 230.900332][ T6931] vfs_get_tree+0x90/0x274 [ 230.901106][ T6931] do_new_mount+0x228/0x810 [ 230.901816][ T6931] path_mount+0x5bc/0x1008 [ 230.902525][ T6931] __arm64_sys_mount+0x514/0x5f0 [ 230.903352][ T6931] invoke_syscall+0x98/0x2b0 [ 230.904082][ T6931] el0_svc_common+0x138/0x258 [ 230.904894][ T6931] do_el0_svc+0x58/0x13c [ 230.905630][ T6931] el0_svc+0x78/0x1d0 [ 230.906346][ T6931] el0t_64_sync_handler+0xcc/0xe4 [ 230.907209][ T6931] el0t_64_sync+0x1a0/0x1a4 [ 230.909588][ T6931] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.911889][ T6931] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.053279][ T6934] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.054450][ T6934] CPU: 0 PID: 6934 Comm: syz.1.668 Not tainted syzkaller #0 [ 231.055536][ T6934] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 231.057178][ T6934] Call trace: [ 231.057767][ T6934] dump_backtrace+0x0/0x458 [ 231.058492][ T6934] show_stack+0x2c/0x3c [ 231.059166][ T6934] __dump_stack+0x30/0x40 [ 231.059865][ T6934] dump_stack_lvl+0xf4/0x15c [ 231.060562][ T6934] dump_stack+0x1c/0x5c [ 231.061244][ T6934] sysfs_create_dir_ns+0x244/0x264 [ 231.062029][ T6934] kobject_add_internal+0x5ac/0xc3c [ 231.062942][ T6934] kobject_init_and_add+0x124/0x190 [ 231.063778][ T6934] gfs2_sys_fs_add+0x200/0x41c [ 231.064587][ T6934] gfs2_fill_super+0xddc/0x1a18 [ 231.065445][ T6934] get_tree_bdev+0x358/0x544 [ 231.066277][ T6934] gfs2_get_tree+0x54/0x1b4 [ 231.066974][ T6934] vfs_get_tree+0x90/0x274 [ 231.067744][ T6934] do_new_mount+0x228/0x810 [ 231.068482][ T6934] path_mount+0x5bc/0x1008 [ 231.069228][ T6934] __arm64_sys_mount+0x514/0x5f0 [ 231.070015][ T6934] invoke_syscall+0x98/0x2b0 [ 231.070768][ T6934] el0_svc_common+0x138/0x258 [ 231.071493][ T6934] do_el0_svc+0x58/0x13c [ 231.072187][ T6934] el0_svc+0x78/0x1d0 [ 231.072824][ T6934] el0t_64_sync_handler+0xcc/0xe4 [ 231.073687][ T6934] el0t_64_sync+0x1a0/0x1a4 [ 231.077085][ T6934] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.079248][ T6934] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.243478][ T6937] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.244695][ T6937] CPU: 1 PID: 6937 Comm: syz.1.669 Not tainted syzkaller #0 [ 231.245859][ T6937] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 231.247511][ T6937] Call trace: [ 231.248023][ T6937] dump_backtrace+0x0/0x458 [ 231.248780][ T6937] show_stack+0x2c/0x3c [ 231.249441][ T6937] __dump_stack+0x30/0x40 [ 231.250147][ T6937] dump_stack_lvl+0xf4/0x15c [ 231.250954][ T6937] dump_stack+0x1c/0x5c [ 231.251634][ T6937] sysfs_create_dir_ns+0x244/0x264 [ 231.252485][ T6937] kobject_add_internal+0x5ac/0xc3c [ 231.253351][ T6937] kobject_init_and_add+0x124/0x190 [ 231.254210][ T6937] gfs2_sys_fs_add+0x200/0x41c [ 231.254971][ T6937] gfs2_fill_super+0xddc/0x1a18 [ 231.255742][ T6937] get_tree_bdev+0x358/0x544 [ 231.256507][ T6937] gfs2_get_tree+0x54/0x1b4 [ 231.257242][ T6937] vfs_get_tree+0x90/0x274 [ 231.257943][ T6937] do_new_mount+0x228/0x810 [ 231.258692][ T6937] path_mount+0x5bc/0x1008 [ 231.259435][ T6937] __arm64_sys_mount+0x514/0x5f0 [ 231.260216][ T6937] invoke_syscall+0x98/0x2b0 [ 231.260998][ T6937] el0_svc_common+0x138/0x258 [ 231.261763][ T6937] do_el0_svc+0x58/0x13c [ 231.262448][ T6937] el0_svc+0x78/0x1d0 [ 231.263154][ T6937] el0t_64_sync_handler+0xcc/0xe4 [ 231.264072][ T6937] el0t_64_sync+0x1a0/0x1a4 [ 231.265012][ T6937] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.267126][ T6937] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.441844][ T6940] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.443086][ T6940] CPU: 1 PID: 6940 Comm: syz.1.670 Not tainted syzkaller #0 [ 231.444317][ T6940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 231.445936][ T6940] Call trace: [ 231.446459][ T6940] dump_backtrace+0x0/0x458 [ 231.447250][ T6940] show_stack+0x2c/0x3c [ 231.447912][ T6940] __dump_stack+0x30/0x40 [ 231.448603][ T6940] dump_stack_lvl+0xf4/0x15c [ 231.449400][ T6940] dump_stack+0x1c/0x5c [ 231.450107][ T6940] sysfs_create_dir_ns+0x244/0x264 [ 231.450985][ T6940] kobject_add_internal+0x5ac/0xc3c [ 231.451819][ T6940] kobject_init_and_add+0x124/0x190 [ 231.452705][ T6940] gfs2_sys_fs_add+0x200/0x41c [ 231.453530][ T6940] gfs2_fill_super+0xddc/0x1a18 [ 231.454375][ T6940] get_tree_bdev+0x358/0x544 [ 231.455204][ T6940] gfs2_get_tree+0x54/0x1b4 [ 231.455906][ T6940] vfs_get_tree+0x90/0x274 [ 231.456657][ T6940] do_new_mount+0x228/0x810 [ 231.457427][ T6940] path_mount+0x5bc/0x1008 [ 231.458201][ T6940] __arm64_sys_mount+0x514/0x5f0 [ 231.459028][ T6940] invoke_syscall+0x98/0x2b0 [ 231.459772][ T6940] el0_svc_common+0x138/0x258 [ 231.460522][ T6940] do_el0_svc+0x58/0x13c [ 231.461202][ T6940] el0_svc+0x78/0x1d0 [ 231.461850][ T6940] el0t_64_sync_handler+0xcc/0xe4 [ 231.462670][ T6940] el0t_64_sync+0x1a0/0x1a4 [ 231.463918][ T6940] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.465897][ T6940] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.692100][ T6943] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.694899][ T6943] CPU: 1 PID: 6943 Comm: syz.1.671 Not tainted syzkaller #0 [ 231.695986][ T6943] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 231.697691][ T6943] Call trace: [ 231.698188][ T6943] dump_backtrace+0x0/0x458 [ 231.698985][ T6943] show_stack+0x2c/0x3c [ 231.699623][ T6943] __dump_stack+0x30/0x40 [ 231.700364][ T6943] dump_stack_lvl+0xf4/0x15c [ 231.701121][ T6943] dump_stack+0x1c/0x5c [ 231.701807][ T6943] sysfs_create_dir_ns+0x244/0x264 [ 231.702667][ T6943] kobject_add_internal+0x5ac/0xc3c [ 231.703497][ T6943] kobject_init_and_add+0x124/0x190 [ 231.704325][ T6943] gfs2_sys_fs_add+0x200/0x41c [ 231.705162][ T6943] gfs2_fill_super+0xddc/0x1a18 [ 231.705993][ T6943] get_tree_bdev+0x358/0x544 [ 231.706737][ T6943] gfs2_get_tree+0x54/0x1b4 [ 231.707468][ T6943] vfs_get_tree+0x90/0x274 [ 231.708153][ T6943] do_new_mount+0x228/0x810 [ 231.708902][ T6943] path_mount+0x5bc/0x1008 [ 231.709734][ T6943] __arm64_sys_mount+0x514/0x5f0 [ 231.710571][ T6943] invoke_syscall+0x98/0x2b0 [ 231.711395][ T6943] el0_svc_common+0x138/0x258 [ 231.712242][ T6943] do_el0_svc+0x58/0x13c [ 231.712911][ T6943] el0_svc+0x78/0x1d0 [ 231.713605][ T6943] el0t_64_sync_handler+0xcc/0xe4 [ 231.714501][ T6943] el0t_64_sync+0x1a0/0x1a4 [ 231.716952][ T6943] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.719064][ T6943] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.895506][ T6946] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.896697][ T6946] CPU: 1 PID: 6946 Comm: syz.1.672 Not tainted syzkaller #0 [ 231.897895][ T6946] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 231.899548][ T6946] Call trace: [ 231.900116][ T6946] dump_backtrace+0x0/0x458 [ 231.900876][ T6946] show_stack+0x2c/0x3c [ 231.901569][ T6946] __dump_stack+0x30/0x40 [ 231.902343][ T6946] dump_stack_lvl+0xf4/0x15c [ 231.903039][ T6946] dump_stack+0x1c/0x5c [ 231.903609][ T6946] sysfs_create_dir_ns+0x244/0x264 [ 231.904431][ T6946] kobject_add_internal+0x5ac/0xc3c [ 231.905192][ T6946] kobject_init_and_add+0x124/0x190 [ 231.905971][ T6946] gfs2_sys_fs_add+0x200/0x41c [ 231.906663][ T6946] gfs2_fill_super+0xddc/0x1a18 [ 231.907414][ T6946] get_tree_bdev+0x358/0x544 [ 231.908077][ T6946] gfs2_get_tree+0x54/0x1b4 [ 231.908748][ T6946] vfs_get_tree+0x90/0x274 [ 231.909500][ T6946] do_new_mount+0x228/0x810 [ 231.910237][ T6946] path_mount+0x5bc/0x1008 [ 231.910877][ T6946] __arm64_sys_mount+0x514/0x5f0 [ 231.911741][ T6946] invoke_syscall+0x98/0x2b0 [ 231.912564][ T6946] el0_svc_common+0x138/0x258 [ 231.913342][ T6946] do_el0_svc+0x58/0x13c [ 231.914072][ T6946] el0_svc+0x78/0x1d0 [ 231.914732][ T6946] el0t_64_sync_handler+0xcc/0xe4 [ 231.915531][ T6946] el0t_64_sync+0x1a0/0x1a4 [ 231.917874][ T6946] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.920005][ T6946] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.066403][ T6949] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.067562][ T6949] CPU: 1 PID: 6949 Comm: syz.1.673 Not tainted syzkaller #0 [ 232.068867][ T6949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 232.070404][ T6949] Call trace: [ 232.071018][ T6949] dump_backtrace+0x0/0x458 [ 232.071828][ T6949] show_stack+0x2c/0x3c [ 232.072444][ T6949] __dump_stack+0x30/0x40 [ 232.073190][ T6949] dump_stack_lvl+0xf4/0x15c [ 232.073991][ T6949] dump_stack+0x1c/0x5c [ 232.074654][ T6949] sysfs_create_dir_ns+0x244/0x264 [ 232.075477][ T6949] kobject_add_internal+0x5ac/0xc3c [ 232.076300][ T6949] kobject_init_and_add+0x124/0x190 [ 232.077147][ T6949] gfs2_sys_fs_add+0x200/0x41c [ 232.077919][ T6949] gfs2_fill_super+0xddc/0x1a18 [ 232.078768][ T6949] get_tree_bdev+0x358/0x544 [ 232.079531][ T6949] gfs2_get_tree+0x54/0x1b4 [ 232.080327][ T6949] vfs_get_tree+0x90/0x274 [ 232.081091][ T6949] do_new_mount+0x228/0x810 [ 232.081902][ T6949] path_mount+0x5bc/0x1008 [ 232.082698][ T6949] __arm64_sys_mount+0x514/0x5f0 [ 232.083479][ T6949] invoke_syscall+0x98/0x2b0 [ 232.084243][ T6949] el0_svc_common+0x138/0x258 [ 232.084931][ T6949] do_el0_svc+0x58/0x13c [ 232.085705][ T6949] el0_svc+0x78/0x1d0 [ 232.086389][ T6949] el0t_64_sync_handler+0xcc/0xe4 [ 232.087293][ T6949] el0t_64_sync+0x1a0/0x1a4 [ 232.089421][ T6949] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.091755][ T6949] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.406767][ T6952] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.407991][ T6952] CPU: 1 PID: 6952 Comm: syz.1.674 Not tainted syzkaller #0 [ 232.409162][ T6952] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 232.410617][ T6952] Call trace: [ 232.411083][ T6952] dump_backtrace+0x0/0x458 [ 232.411837][ T6952] show_stack+0x2c/0x3c [ 232.412525][ T6952] __dump_stack+0x30/0x40 [ 232.413254][ T6952] dump_stack_lvl+0xf4/0x15c [ 232.413970][ T6952] dump_stack+0x1c/0x5c [ 232.414587][ T6952] sysfs_create_dir_ns+0x244/0x264 [ 232.415356][ T6952] kobject_add_internal+0x5ac/0xc3c [ 232.416134][ T6952] kobject_init_and_add+0x124/0x190 [ 232.416959][ T6952] gfs2_sys_fs_add+0x200/0x41c [ 232.417759][ T6952] gfs2_fill_super+0xddc/0x1a18 [ 232.418611][ T6952] get_tree_bdev+0x358/0x544 [ 232.419407][ T6952] gfs2_get_tree+0x54/0x1b4 [ 232.420186][ T6952] vfs_get_tree+0x90/0x274 [ 232.420885][ T6952] do_new_mount+0x228/0x810 [ 232.421610][ T6952] path_mount+0x5bc/0x1008 [ 232.422296][ T6952] __arm64_sys_mount+0x514/0x5f0 [ 232.423102][ T6952] invoke_syscall+0x98/0x2b0 [ 232.423908][ T6952] el0_svc_common+0x138/0x258 [ 232.424694][ T6952] do_el0_svc+0x58/0x13c [ 232.425382][ T6952] el0_svc+0x78/0x1d0 [ 232.426039][ T6952] el0t_64_sync_handler+0xcc/0xe4 [ 232.426924][ T6952] el0t_64_sync+0x1a0/0x1a4 [ 232.430664][ T6952] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.432777][ T6952] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.584847][ T6955] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.586011][ T6955] CPU: 1 PID: 6955 Comm: syz.1.675 Not tainted syzkaller #0 [ 232.587240][ T6955] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 232.588863][ T6955] Call trace: [ 232.589388][ T6955] dump_backtrace+0x0/0x458 [ 232.590108][ T6955] show_stack+0x2c/0x3c [ 232.590751][ T6955] __dump_stack+0x30/0x40 [ 232.591496][ T6955] dump_stack_lvl+0xf4/0x15c [ 232.592253][ T6955] dump_stack+0x1c/0x5c [ 232.592932][ T6955] sysfs_create_dir_ns+0x244/0x264 [ 232.593812][ T6955] kobject_add_internal+0x5ac/0xc3c [ 232.594750][ T6955] kobject_init_and_add+0x124/0x190 [ 232.595561][ T6955] gfs2_sys_fs_add+0x200/0x41c [ 232.596306][ T6955] gfs2_fill_super+0xddc/0x1a18 [ 232.597115][ T6955] get_tree_bdev+0x358/0x544 [ 232.597889][ T6955] gfs2_get_tree+0x54/0x1b4 [ 232.598633][ T6955] vfs_get_tree+0x90/0x274 [ 232.599304][ T6955] do_new_mount+0x228/0x810 [ 232.600030][ T6955] path_mount+0x5bc/0x1008 [ 232.600772][ T6955] __arm64_sys_mount+0x514/0x5f0 [ 232.601622][ T6955] invoke_syscall+0x98/0x2b0 [ 232.602367][ T6955] el0_svc_common+0x138/0x258 [ 232.603135][ T6955] do_el0_svc+0x58/0x13c [ 232.603830][ T6955] el0_svc+0x78/0x1d0 [ 232.604544][ T6955] el0t_64_sync_handler+0xcc/0xe4 [ 232.605414][ T6955] el0t_64_sync+0x1a0/0x1a4 [ 232.607701][ T6955] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.609672][ T6955] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.753618][ T6958] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.754763][ T6958] CPU: 0 PID: 6958 Comm: syz.1.676 Not tainted syzkaller #0 [ 232.756005][ T6958] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 232.757560][ T6958] Call trace: [ 232.758081][ T6958] dump_backtrace+0x0/0x458 [ 232.758784][ T6958] show_stack+0x2c/0x3c [ 232.759447][ T6958] __dump_stack+0x30/0x40 [ 232.760151][ T6958] dump_stack_lvl+0xf4/0x15c [ 232.760884][ T6958] dump_stack+0x1c/0x5c [ 232.761556][ T6958] sysfs_create_dir_ns+0x244/0x264 [ 232.762416][ T6958] kobject_add_internal+0x5ac/0xc3c [ 232.763318][ T6958] kobject_init_and_add+0x124/0x190 [ 232.764152][ T6958] gfs2_sys_fs_add+0x200/0x41c [ 232.764928][ T6958] gfs2_fill_super+0xddc/0x1a18 [ 232.765763][ T6958] get_tree_bdev+0x358/0x544 [ 232.766500][ T6958] gfs2_get_tree+0x54/0x1b4 [ 232.767262][ T6958] vfs_get_tree+0x90/0x274 [ 232.767949][ T6958] do_new_mount+0x228/0x810 [ 232.768635][ T6958] path_mount+0x5bc/0x1008 [ 232.769334][ T6958] __arm64_sys_mount+0x514/0x5f0 [ 232.770120][ T6958] invoke_syscall+0x98/0x2b0 [ 232.770849][ T6958] el0_svc_common+0x138/0x258 [ 232.771612][ T6958] do_el0_svc+0x58/0x13c [ 232.772279][ T6958] el0_svc+0x78/0x1d0 [ 232.772896][ T6958] el0t_64_sync_handler+0xcc/0xe4 [ 232.773740][ T6958] el0t_64_sync+0x1a0/0x1a4 [ 232.776040][ T6958] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.778021][ T6958] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.926263][ T6961] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.927500][ T6961] CPU: 1 PID: 6961 Comm: syz.1.677 Not tainted syzkaller #0 [ 232.928711][ T6961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 232.930423][ T6961] Call trace: [ 232.930997][ T6961] dump_backtrace+0x0/0x458 [ 232.931792][ T6961] show_stack+0x2c/0x3c [ 232.932460][ T6961] __dump_stack+0x30/0x40 [ 232.933184][ T6961] dump_stack_lvl+0xf4/0x15c [ 232.934003][ T6961] dump_stack+0x1c/0x5c [ 232.934664][ T6961] sysfs_create_dir_ns+0x244/0x264 [ 232.935516][ T6961] kobject_add_internal+0x5ac/0xc3c [ 232.936356][ T6961] kobject_init_and_add+0x124/0x190 [ 232.937283][ T6961] gfs2_sys_fs_add+0x200/0x41c [ 232.938068][ T6961] gfs2_fill_super+0xddc/0x1a18 [ 232.938850][ T6961] get_tree_bdev+0x358/0x544 [ 232.939631][ T6961] gfs2_get_tree+0x54/0x1b4 [ 232.940312][ T6961] vfs_get_tree+0x90/0x274 [ 232.941060][ T6961] do_new_mount+0x228/0x810 [ 232.941774][ T6961] path_mount+0x5bc/0x1008 [ 232.942508][ T6961] __arm64_sys_mount+0x514/0x5f0 [ 232.943373][ T6961] invoke_syscall+0x98/0x2b0 [ 232.944145][ T6961] el0_svc_common+0x138/0x258 [ 232.944902][ T6961] do_el0_svc+0x58/0x13c [ 232.945598][ T6961] el0_svc+0x78/0x1d0 [ 232.946271][ T6961] el0t_64_sync_handler+0xcc/0xe4 [ 232.947167][ T6961] el0t_64_sync+0x1a0/0x1a4 [ 232.949251][ T6961] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.951486][ T6961] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.098034][ T6964] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.099297][ T6964] CPU: 0 PID: 6964 Comm: syz.1.678 Not tainted syzkaller #0 [ 233.100488][ T6964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 233.102115][ T6964] Call trace: [ 233.102657][ T6964] dump_backtrace+0x0/0x458 [ 233.103338][ T6964] show_stack+0x2c/0x3c [ 233.104034][ T6964] __dump_stack+0x30/0x40 [ 233.104672][ T6964] dump_stack_lvl+0xf4/0x15c [ 233.105350][ T6964] dump_stack+0x1c/0x5c [ 233.105989][ T6964] sysfs_create_dir_ns+0x244/0x264 [ 233.106770][ T6964] kobject_add_internal+0x5ac/0xc3c [ 233.107641][ T6964] kobject_init_and_add+0x124/0x190 [ 233.108446][ T6964] gfs2_sys_fs_add+0x200/0x41c [ 233.109210][ T6964] gfs2_fill_super+0xddc/0x1a18 [ 233.110029][ T6964] get_tree_bdev+0x358/0x544 [ 233.110702][ T6964] gfs2_get_tree+0x54/0x1b4 [ 233.111426][ T6964] vfs_get_tree+0x90/0x274 [ 233.112172][ T6964] do_new_mount+0x228/0x810 [ 233.112883][ T6964] path_mount+0x5bc/0x1008 [ 233.113623][ T6964] __arm64_sys_mount+0x514/0x5f0 [ 233.114470][ T6964] invoke_syscall+0x98/0x2b0 [ 233.115170][ T6964] el0_svc_common+0x138/0x258 [ 233.115903][ T6964] do_el0_svc+0x58/0x13c [ 233.116603][ T6964] el0_svc+0x78/0x1d0 [ 233.117189][ T6964] el0t_64_sync_handler+0xcc/0xe4 [ 233.118006][ T6964] el0t_64_sync+0x1a0/0x1a4 [ 233.120628][ T6964] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.122773][ T6964] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:53 executed programs: 665 [ 233.265965][ T6967] set_capacity_and_notify: 14 callbacks suppressed [ 233.265976][ T6967] loop1: detected capacity change from 0 to 32768 [ 233.310825][ T6967] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.312076][ T6967] CPU: 0 PID: 6967 Comm: syz.1.679 Not tainted syzkaller #0 [ 233.313314][ T6967] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 233.314936][ T6967] Call trace: [ 233.315483][ T6967] dump_backtrace+0x0/0x458 [ 233.316200][ T6967] show_stack+0x2c/0x3c [ 233.316914][ T6967] __dump_stack+0x30/0x40 [ 233.317662][ T6967] dump_stack_lvl+0xf4/0x15c [ 233.318375][ T6967] dump_stack+0x1c/0x5c [ 233.319047][ T6967] sysfs_create_dir_ns+0x244/0x264 [ 233.319865][ T6967] kobject_add_internal+0x5ac/0xc3c [ 233.320701][ T6967] kobject_init_and_add+0x124/0x190 [ 233.321569][ T6967] gfs2_sys_fs_add+0x200/0x41c [ 233.322327][ T6967] gfs2_fill_super+0xddc/0x1a18 [ 233.323103][ T6967] get_tree_bdev+0x358/0x544 [ 233.323782][ T6967] gfs2_get_tree+0x54/0x1b4 [ 233.324495][ T6967] vfs_get_tree+0x90/0x274 [ 233.325188][ T6967] do_new_mount+0x228/0x810 [ 233.325919][ T6967] path_mount+0x5bc/0x1008 [ 233.326664][ T6967] __arm64_sys_mount+0x514/0x5f0 [ 233.327478][ T6967] invoke_syscall+0x98/0x2b0 [ 233.328222][ T6967] el0_svc_common+0x138/0x258 [ 233.328983][ T6967] do_el0_svc+0x58/0x13c [ 233.329627][ T6967] el0_svc+0x78/0x1d0 [ 233.330264][ T6967] el0t_64_sync_handler+0xcc/0xe4 [ 233.331018][ T6967] el0t_64_sync+0x1a0/0x1a4 [ 233.333739][ T6967] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.335819][ T6967] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.475188][ T6970] loop1: detected capacity change from 0 to 32768 [ 233.555367][ T6970] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.556540][ T6970] CPU: 1 PID: 6970 Comm: syz.1.680 Not tainted syzkaller #0 [ 233.557712][ T6970] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 233.559202][ T6970] Call trace: [ 233.559689][ T6970] dump_backtrace+0x0/0x458 [ 233.560436][ T6970] show_stack+0x2c/0x3c [ 233.561106][ T6970] __dump_stack+0x30/0x40 [ 233.561870][ T6970] dump_stack_lvl+0xf4/0x15c [ 233.562692][ T6970] dump_stack+0x1c/0x5c [ 233.563477][ T6970] sysfs_create_dir_ns+0x244/0x264 [ 233.564320][ T6970] kobject_add_internal+0x5ac/0xc3c [ 233.565187][ T6970] kobject_init_and_add+0x124/0x190 [ 233.566031][ T6970] gfs2_sys_fs_add+0x200/0x41c [ 233.566822][ T6970] gfs2_fill_super+0xddc/0x1a18 [ 233.567627][ T6970] get_tree_bdev+0x358/0x544 [ 233.568313][ T6970] gfs2_get_tree+0x54/0x1b4 [ 233.569096][ T6970] vfs_get_tree+0x90/0x274 [ 233.569867][ T6970] do_new_mount+0x228/0x810 [ 233.570607][ T6970] path_mount+0x5bc/0x1008 [ 233.571354][ T6970] __arm64_sys_mount+0x514/0x5f0 [ 233.572139][ T6970] invoke_syscall+0x98/0x2b0 [ 233.572883][ T6970] el0_svc_common+0x138/0x258 [ 233.573655][ T6970] do_el0_svc+0x58/0x13c [ 233.574415][ T6970] el0_svc+0x78/0x1d0 [ 233.575050][ T6970] el0t_64_sync_handler+0xcc/0xe4 [ 233.575829][ T6970] el0t_64_sync+0x1a0/0x1a4 [ 233.576697][ T6970] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.578756][ T6970] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.712463][ T6973] loop1: detected capacity change from 0 to 32768 [ 233.755363][ T6973] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.757226][ T6973] CPU: 1 PID: 6973 Comm: syz.1.681 Not tainted syzkaller #0 [ 233.758335][ T6973] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 233.760059][ T6973] Call trace: [ 233.760571][ T6973] dump_backtrace+0x0/0x458 [ 233.761302][ T6973] show_stack+0x2c/0x3c [ 233.762080][ T6973] __dump_stack+0x30/0x40 [ 233.762825][ T6973] dump_stack_lvl+0xf4/0x15c [ 233.763555][ T6973] dump_stack+0x1c/0x5c [ 233.764270][ T6973] sysfs_create_dir_ns+0x244/0x264 [ 233.765178][ T6973] kobject_add_internal+0x5ac/0xc3c [ 233.766040][ T6973] kobject_init_and_add+0x124/0x190 [ 233.766862][ T6973] gfs2_sys_fs_add+0x200/0x41c [ 233.767625][ T6973] gfs2_fill_super+0xddc/0x1a18 [ 233.768438][ T6973] get_tree_bdev+0x358/0x544 [ 233.769165][ T6973] gfs2_get_tree+0x54/0x1b4 [ 233.769885][ T6973] vfs_get_tree+0x90/0x274 [ 233.770584][ T6973] do_new_mount+0x228/0x810 [ 233.771227][ T6973] path_mount+0x5bc/0x1008 [ 233.771884][ T6973] __arm64_sys_mount+0x514/0x5f0 [ 233.772771][ T6973] invoke_syscall+0x98/0x2b0 [ 233.773571][ T6973] el0_svc_common+0x138/0x258 [ 233.774384][ T6973] do_el0_svc+0x58/0x13c [ 233.775056][ T6973] el0_svc+0x78/0x1d0 [ 233.775723][ T6973] el0t_64_sync_handler+0xcc/0xe4 [ 233.776528][ T6973] el0t_64_sync+0x1a0/0x1a4 [ 233.777832][ T6973] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.780360][ T6973] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.921642][ T6976] loop1: detected capacity change from 0 to 32768 [ 233.932720][ T6976] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.933936][ T6976] CPU: 0 PID: 6976 Comm: syz.1.682 Not tainted syzkaller #0 [ 233.935089][ T6976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 233.936617][ T6976] Call trace: [ 233.937088][ T6976] dump_backtrace+0x0/0x458 [ 233.937785][ T6976] show_stack+0x2c/0x3c [ 233.938504][ T6976] __dump_stack+0x30/0x40 [ 233.939167][ T6976] dump_stack_lvl+0xf4/0x15c [ 233.939906][ T6976] dump_stack+0x1c/0x5c [ 233.940600][ T6976] sysfs_create_dir_ns+0x244/0x264 [ 233.941510][ T6976] kobject_add_internal+0x5ac/0xc3c [ 233.942421][ T6976] kobject_init_and_add+0x124/0x190 [ 233.943342][ T6976] gfs2_sys_fs_add+0x200/0x41c [ 233.944135][ T6976] gfs2_fill_super+0xddc/0x1a18 [ 233.945006][ T6976] get_tree_bdev+0x358/0x544 [ 233.945731][ T6976] gfs2_get_tree+0x54/0x1b4 [ 233.946478][ T6976] vfs_get_tree+0x90/0x274 [ 233.947248][ T6976] do_new_mount+0x228/0x810 [ 233.948071][ T6976] path_mount+0x5bc/0x1008 [ 233.948765][ T6976] __arm64_sys_mount+0x514/0x5f0 [ 233.949658][ T6976] invoke_syscall+0x98/0x2b0 [ 233.950496][ T6976] el0_svc_common+0x138/0x258 [ 233.951221][ T6976] do_el0_svc+0x58/0x13c [ 233.951984][ T6976] el0_svc+0x78/0x1d0 [ 233.952658][ T6976] el0t_64_sync_handler+0xcc/0xe4 [ 233.953478][ T6976] el0t_64_sync+0x1a0/0x1a4 [ 233.954391][ T6976] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.956539][ T6976] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.092673][ T6979] loop1: detected capacity change from 0 to 32768 [ 234.100475][ T6979] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.101614][ T6979] CPU: 1 PID: 6979 Comm: syz.1.683 Not tainted syzkaller #0 [ 234.102818][ T6979] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 234.104545][ T6979] Call trace: [ 234.105089][ T6979] dump_backtrace+0x0/0x458 [ 234.105802][ T6979] show_stack+0x2c/0x3c [ 234.106547][ T6979] __dump_stack+0x30/0x40 [ 234.107299][ T6979] dump_stack_lvl+0xf4/0x15c [ 234.108082][ T6979] dump_stack+0x1c/0x5c [ 234.108727][ T6979] sysfs_create_dir_ns+0x244/0x264 [ 234.109503][ T6979] kobject_add_internal+0x5ac/0xc3c [ 234.110346][ T6979] kobject_init_and_add+0x124/0x190 [ 234.111244][ T6979] gfs2_sys_fs_add+0x200/0x41c [ 234.111945][ T6979] gfs2_fill_super+0xddc/0x1a18 [ 234.112816][ T6979] get_tree_bdev+0x358/0x544 [ 234.113605][ T6979] gfs2_get_tree+0x54/0x1b4 [ 234.114365][ T6979] vfs_get_tree+0x90/0x274 [ 234.115073][ T6979] do_new_mount+0x228/0x810 [ 234.115807][ T6979] path_mount+0x5bc/0x1008 [ 234.116545][ T6979] __arm64_sys_mount+0x514/0x5f0 [ 234.117363][ T6979] invoke_syscall+0x98/0x2b0 [ 234.118082][ T6979] el0_svc_common+0x138/0x258 [ 234.118914][ T6979] do_el0_svc+0x58/0x13c [ 234.119628][ T6979] el0_svc+0x78/0x1d0 [ 234.120303][ T6979] el0t_64_sync_handler+0xcc/0xe4 [ 234.121116][ T6979] el0t_64_sync+0x1a0/0x1a4 [ 234.123374][ T6979] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.125422][ T6979] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.267019][ T6982] loop1: detected capacity change from 0 to 32768 [ 234.275319][ T6982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.276499][ T6982] CPU: 0 PID: 6982 Comm: syz.1.684 Not tainted syzkaller #0 [ 234.277710][ T6982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 234.279479][ T6982] Call trace: [ 234.280112][ T6982] dump_backtrace+0x0/0x458 [ 234.280831][ T6982] show_stack+0x2c/0x3c [ 234.281439][ T6982] __dump_stack+0x30/0x40 [ 234.282145][ T6982] dump_stack_lvl+0xf4/0x15c [ 234.282918][ T6982] dump_stack+0x1c/0x5c [ 234.283592][ T6982] sysfs_create_dir_ns+0x244/0x264 [ 234.284460][ T6982] kobject_add_internal+0x5ac/0xc3c [ 234.285331][ T6982] kobject_init_and_add+0x124/0x190 [ 234.286165][ T6982] gfs2_sys_fs_add+0x200/0x41c [ 234.286875][ T6982] gfs2_fill_super+0xddc/0x1a18 [ 234.287637][ T6982] get_tree_bdev+0x358/0x544 [ 234.288380][ T6982] gfs2_get_tree+0x54/0x1b4 [ 234.289120][ T6982] vfs_get_tree+0x90/0x274 [ 234.289768][ T6982] do_new_mount+0x228/0x810 [ 234.290515][ T6982] path_mount+0x5bc/0x1008 [ 234.291210][ T6982] __arm64_sys_mount+0x514/0x5f0 [ 234.292043][ T6982] invoke_syscall+0x98/0x2b0 [ 234.292802][ T6982] el0_svc_common+0x138/0x258 [ 234.293554][ T6982] do_el0_svc+0x58/0x13c [ 234.294313][ T6982] el0_svc+0x78/0x1d0 [ 234.294914][ T6982] el0t_64_sync_handler+0xcc/0xe4 [ 234.295712][ T6982] el0t_64_sync+0x1a0/0x1a4 [ 234.299131][ T6982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.301483][ T6982] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.439206][ T6985] loop1: detected capacity change from 0 to 32768 [ 234.447407][ T6985] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.448522][ T6985] CPU: 1 PID: 6985 Comm: syz.1.685 Not tainted syzkaller #0 [ 234.449666][ T6985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 234.451343][ T6985] Call trace: [ 234.451932][ T6985] dump_backtrace+0x0/0x458 [ 234.452692][ T6985] show_stack+0x2c/0x3c [ 234.453476][ T6985] __dump_stack+0x30/0x40 [ 234.454154][ T6985] dump_stack_lvl+0xf4/0x15c [ 234.454918][ T6985] dump_stack+0x1c/0x5c [ 234.455579][ T6985] sysfs_create_dir_ns+0x244/0x264 [ 234.456361][ T6985] kobject_add_internal+0x5ac/0xc3c [ 234.457181][ T6985] kobject_init_and_add+0x124/0x190 [ 234.458029][ T6985] gfs2_sys_fs_add+0x200/0x41c [ 234.458809][ T6985] gfs2_fill_super+0xddc/0x1a18 [ 234.459661][ T6985] get_tree_bdev+0x358/0x544 [ 234.460437][ T6985] gfs2_get_tree+0x54/0x1b4 [ 234.461128][ T6985] vfs_get_tree+0x90/0x274 [ 234.461777][ T6985] do_new_mount+0x228/0x810 [ 234.462508][ T6985] path_mount+0x5bc/0x1008 [ 234.463248][ T6985] __arm64_sys_mount+0x514/0x5f0 [ 234.464073][ T6985] invoke_syscall+0x98/0x2b0 [ 234.464816][ T6985] el0_svc_common+0x138/0x258 [ 234.465576][ T6985] do_el0_svc+0x58/0x13c [ 234.466254][ T6985] el0_svc+0x78/0x1d0 [ 234.466848][ T6985] el0t_64_sync_handler+0xcc/0xe4 [ 234.467685][ T6985] el0t_64_sync+0x1a0/0x1a4 [ 234.469959][ T6985] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.472156][ T6985] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.610762][ T6988] loop1: detected capacity change from 0 to 32768 [ 234.619009][ T6988] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.620219][ T6988] CPU: 1 PID: 6988 Comm: syz.1.686 Not tainted syzkaller #0 [ 234.621482][ T6988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 234.623142][ T6988] Call trace: [ 234.623701][ T6988] dump_backtrace+0x0/0x458 [ 234.624588][ T6988] show_stack+0x2c/0x3c [ 234.625338][ T6988] __dump_stack+0x30/0x40 [ 234.626091][ T6988] dump_stack_lvl+0xf4/0x15c [ 234.626887][ T6988] dump_stack+0x1c/0x5c [ 234.627623][ T6988] sysfs_create_dir_ns+0x244/0x264 [ 234.628536][ T6988] kobject_add_internal+0x5ac/0xc3c [ 234.629365][ T6988] kobject_init_and_add+0x124/0x190 [ 234.630211][ T6988] gfs2_sys_fs_add+0x200/0x41c [ 234.631052][ T6988] gfs2_fill_super+0xddc/0x1a18 [ 234.631912][ T6988] get_tree_bdev+0x358/0x544 [ 234.632664][ T6988] gfs2_get_tree+0x54/0x1b4 [ 234.633387][ T6988] vfs_get_tree+0x90/0x274 [ 234.634169][ T6988] do_new_mount+0x228/0x810 [ 234.634949][ T6988] path_mount+0x5bc/0x1008 [ 234.635750][ T6988] __arm64_sys_mount+0x514/0x5f0 [ 234.636557][ T6988] invoke_syscall+0x98/0x2b0 [ 234.637354][ T6988] el0_svc_common+0x138/0x258 [ 234.638154][ T6988] do_el0_svc+0x58/0x13c [ 234.638864][ T6988] el0_svc+0x78/0x1d0 [ 234.639540][ T6988] el0t_64_sync_handler+0xcc/0xe4 [ 234.640393][ T6988] el0t_64_sync+0x1a0/0x1a4 [ 234.641884][ T6988] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.643935][ T6988] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.780196][ T6991] loop1: detected capacity change from 0 to 32768 [ 234.788522][ T6991] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.789697][ T6991] CPU: 1 PID: 6991 Comm: syz.1.687 Not tainted syzkaller #0 [ 234.790932][ T6991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 234.792540][ T6991] Call trace: [ 234.793035][ T6991] dump_backtrace+0x0/0x458 [ 234.793797][ T6991] show_stack+0x2c/0x3c [ 234.794490][ T6991] __dump_stack+0x30/0x40 [ 234.795217][ T6991] dump_stack_lvl+0xf4/0x15c [ 234.796016][ T6991] dump_stack+0x1c/0x5c [ 234.796695][ T6991] sysfs_create_dir_ns+0x244/0x264 [ 234.797535][ T6991] kobject_add_internal+0x5ac/0xc3c [ 234.798351][ T6991] kobject_init_and_add+0x124/0x190 [ 234.799192][ T6991] gfs2_sys_fs_add+0x200/0x41c [ 234.799920][ T6991] gfs2_fill_super+0xddc/0x1a18 [ 234.800672][ T6991] get_tree_bdev+0x358/0x544 [ 234.801399][ T6991] gfs2_get_tree+0x54/0x1b4 [ 234.802110][ T6991] vfs_get_tree+0x90/0x274 [ 234.802884][ T6991] do_new_mount+0x228/0x810 [ 234.803621][ T6991] path_mount+0x5bc/0x1008 [ 234.804356][ T6991] __arm64_sys_mount+0x514/0x5f0 [ 234.805184][ T6991] invoke_syscall+0x98/0x2b0 [ 234.805995][ T6991] el0_svc_common+0x138/0x258 [ 234.806805][ T6991] do_el0_svc+0x58/0x13c [ 234.807483][ T6991] el0_svc+0x78/0x1d0 [ 234.808171][ T6991] el0t_64_sync_handler+0xcc/0xe4 [ 234.809017][ T6991] el0t_64_sync+0x1a0/0x1a4 [ 234.809975][ T6991] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.812910][ T6991] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.949799][ T6994] loop1: detected capacity change from 0 to 32768 [ 235.037455][ T6994] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.038696][ T6994] CPU: 1 PID: 6994 Comm: syz.1.688 Not tainted syzkaller #0 [ 235.039881][ T6994] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 235.041617][ T6994] Call trace: [ 235.042174][ T6994] dump_backtrace+0x0/0x458 [ 235.042861][ T6994] show_stack+0x2c/0x3c [ 235.043536][ T6994] __dump_stack+0x30/0x40 [ 235.044275][ T6994] dump_stack_lvl+0xf4/0x15c [ 235.045069][ T6994] dump_stack+0x1c/0x5c [ 235.045746][ T6994] sysfs_create_dir_ns+0x244/0x264 [ 235.046600][ T6994] kobject_add_internal+0x5ac/0xc3c [ 235.047502][ T6994] kobject_init_and_add+0x124/0x190 [ 235.048371][ T6994] gfs2_sys_fs_add+0x200/0x41c [ 235.049165][ T6994] gfs2_fill_super+0xddc/0x1a18 [ 235.049974][ T6994] get_tree_bdev+0x358/0x544 [ 235.050762][ T6994] gfs2_get_tree+0x54/0x1b4 [ 235.051538][ T6994] vfs_get_tree+0x90/0x274 [ 235.052264][ T6994] do_new_mount+0x228/0x810 [ 235.053023][ T6994] path_mount+0x5bc/0x1008 [ 235.053789][ T6994] __arm64_sys_mount+0x514/0x5f0 [ 235.054630][ T6994] invoke_syscall+0x98/0x2b0 [ 235.055396][ T6994] el0_svc_common+0x138/0x258 [ 235.056265][ T6994] do_el0_svc+0x58/0x13c [ 235.056918][ T6994] el0_svc+0x78/0x1d0 [ 235.057580][ T6994] el0t_64_sync_handler+0xcc/0xe4 [ 235.058484][ T6994] el0t_64_sync+0x1a0/0x1a4 [ 235.059489][ T6994] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.061764][ T6994] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.273196][ T6997] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.274444][ T6997] CPU: 0 PID: 6997 Comm: syz.1.689 Not tainted syzkaller #0 [ 235.275668][ T6997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 235.277194][ T6997] Call trace: [ 235.277729][ T6997] dump_backtrace+0x0/0x458 [ 235.278487][ T6997] show_stack+0x2c/0x3c [ 235.279135][ T6997] __dump_stack+0x30/0x40 [ 235.279837][ T6997] dump_stack_lvl+0xf4/0x15c [ 235.280593][ T6997] dump_stack+0x1c/0x5c [ 235.281368][ T6997] sysfs_create_dir_ns+0x244/0x264 [ 235.282209][ T6997] kobject_add_internal+0x5ac/0xc3c [ 235.283040][ T6997] kobject_init_and_add+0x124/0x190 [ 235.283895][ T6997] gfs2_sys_fs_add+0x200/0x41c [ 235.284645][ T6997] gfs2_fill_super+0xddc/0x1a18 [ 235.285439][ T6997] get_tree_bdev+0x358/0x544 [ 235.286197][ T6997] gfs2_get_tree+0x54/0x1b4 [ 235.286960][ T6997] vfs_get_tree+0x90/0x274 [ 235.287682][ T6997] do_new_mount+0x228/0x810 [ 235.288459][ T6997] path_mount+0x5bc/0x1008 [ 235.289170][ T6997] __arm64_sys_mount+0x514/0x5f0 [ 235.289925][ T6997] invoke_syscall+0x98/0x2b0 [ 235.290683][ T6997] el0_svc_common+0x138/0x258 [ 235.291556][ T6997] do_el0_svc+0x58/0x13c [ 235.292297][ T6997] el0_svc+0x78/0x1d0 [ 235.292921][ T6997] el0t_64_sync_handler+0xcc/0xe4 [ 235.293761][ T6997] el0t_64_sync+0x1a0/0x1a4 [ 235.296015][ T6997] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.297971][ T6997] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.497054][ T7000] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.498247][ T7000] CPU: 1 PID: 7000 Comm: syz.1.690 Not tainted syzkaller #0 [ 235.499416][ T7000] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 235.501184][ T7000] Call trace: [ 235.501689][ T7000] dump_backtrace+0x0/0x458 [ 235.502391][ T7000] show_stack+0x2c/0x3c [ 235.503118][ T7000] __dump_stack+0x30/0x40 [ 235.503800][ T7000] dump_stack_lvl+0xf4/0x15c [ 235.504559][ T7000] dump_stack+0x1c/0x5c [ 235.505344][ T7000] sysfs_create_dir_ns+0x244/0x264 [ 235.506302][ T7000] kobject_add_internal+0x5ac/0xc3c [ 235.507181][ T7000] kobject_init_and_add+0x124/0x190 [ 235.508040][ T7000] gfs2_sys_fs_add+0x200/0x41c [ 235.508809][ T7000] gfs2_fill_super+0xddc/0x1a18 [ 235.509675][ T7000] get_tree_bdev+0x358/0x544 [ 235.510483][ T7000] gfs2_get_tree+0x54/0x1b4 [ 235.511239][ T7000] vfs_get_tree+0x90/0x274 [ 235.511963][ T7000] do_new_mount+0x228/0x810 [ 235.512677][ T7000] path_mount+0x5bc/0x1008 [ 235.513341][ T7000] __arm64_sys_mount+0x514/0x5f0 [ 235.514199][ T7000] invoke_syscall+0x98/0x2b0 [ 235.514956][ T7000] el0_svc_common+0x138/0x258 [ 235.515756][ T7000] do_el0_svc+0x58/0x13c [ 235.516437][ T7000] el0_svc+0x78/0x1d0 [ 235.517087][ T7000] el0t_64_sync_handler+0xcc/0xe4 [ 235.517906][ T7000] el0t_64_sync+0x1a0/0x1a4 [ 235.518786][ T7000] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.520999][ T7000] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.694995][ T7003] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.696165][ T7003] CPU: 1 PID: 7003 Comm: syz.1.691 Not tainted syzkaller #0 [ 235.697276][ T7003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 235.698923][ T7003] Call trace: [ 235.699480][ T7003] dump_backtrace+0x0/0x458 [ 235.700275][ T7003] show_stack+0x2c/0x3c [ 235.700985][ T7003] __dump_stack+0x30/0x40 [ 235.701711][ T7003] dump_stack_lvl+0xf4/0x15c [ 235.702526][ T7003] dump_stack+0x1c/0x5c [ 235.703214][ T7003] sysfs_create_dir_ns+0x244/0x264 [ 235.704093][ T7003] kobject_add_internal+0x5ac/0xc3c [ 235.704972][ T7003] kobject_init_and_add+0x124/0x190 [ 235.705817][ T7003] gfs2_sys_fs_add+0x200/0x41c [ 235.706617][ T7003] gfs2_fill_super+0xddc/0x1a18 [ 235.707444][ T7003] get_tree_bdev+0x358/0x544 [ 235.708271][ T7003] gfs2_get_tree+0x54/0x1b4 [ 235.708996][ T7003] vfs_get_tree+0x90/0x274 [ 235.709758][ T7003] do_new_mount+0x228/0x810 [ 235.710495][ T7003] path_mount+0x5bc/0x1008 [ 235.711219][ T7003] __arm64_sys_mount+0x514/0x5f0 [ 235.712010][ T7003] invoke_syscall+0x98/0x2b0 [ 235.712749][ T7003] el0_svc_common+0x138/0x258 [ 235.713511][ T7003] do_el0_svc+0x58/0x13c [ 235.714247][ T7003] el0_svc+0x78/0x1d0 [ 235.714899][ T7003] el0t_64_sync_handler+0xcc/0xe4 [ 235.715697][ T7003] el0t_64_sync+0x1a0/0x1a4 [ 235.716584][ T7003] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.718662][ T7003] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.961904][ T7006] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.963070][ T7006] CPU: 0 PID: 7006 Comm: syz.1.692 Not tainted syzkaller #0 [ 235.964198][ T7006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 235.965953][ T7006] Call trace: [ 235.966480][ T7006] dump_backtrace+0x0/0x458 [ 235.967218][ T7006] show_stack+0x2c/0x3c [ 235.967959][ T7006] __dump_stack+0x30/0x40 [ 235.968661][ T7006] dump_stack_lvl+0xf4/0x15c [ 235.969433][ T7006] dump_stack+0x1c/0x5c [ 235.970082][ T7006] sysfs_create_dir_ns+0x244/0x264 [ 235.970935][ T7006] kobject_add_internal+0x5ac/0xc3c [ 235.971784][ T7006] kobject_init_and_add+0x124/0x190 [ 235.972708][ T7006] gfs2_sys_fs_add+0x200/0x41c [ 235.973545][ T7006] gfs2_fill_super+0xddc/0x1a18 [ 235.974385][ T7006] get_tree_bdev+0x358/0x544 [ 235.975195][ T7006] gfs2_get_tree+0x54/0x1b4 [ 235.975954][ T7006] vfs_get_tree+0x90/0x274 [ 235.976681][ T7006] do_new_mount+0x228/0x810 [ 235.977458][ T7006] path_mount+0x5bc/0x1008 [ 235.978149][ T7006] __arm64_sys_mount+0x514/0x5f0 [ 235.978959][ T7006] invoke_syscall+0x98/0x2b0 [ 235.979665][ T7006] el0_svc_common+0x138/0x258 [ 235.980506][ T7006] do_el0_svc+0x58/0x13c [ 235.981292][ T7006] el0_svc+0x78/0x1d0 [ 235.981950][ T7006] el0t_64_sync_handler+0xcc/0xe4 [ 235.982753][ T7006] el0t_64_sync+0x1a0/0x1a4 [ 235.985354][ T7006] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.987417][ T7006] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.220468][ T7009] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.221712][ T7009] CPU: 1 PID: 7009 Comm: syz.1.693 Not tainted syzkaller #0 [ 236.222837][ T7009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 236.224542][ T7009] Call trace: [ 236.225089][ T7009] dump_backtrace+0x0/0x458 [ 236.225896][ T7009] show_stack+0x2c/0x3c [ 236.226617][ T7009] __dump_stack+0x30/0x40 [ 236.227415][ T7009] dump_stack_lvl+0xf4/0x15c [ 236.228215][ T7009] dump_stack+0x1c/0x5c [ 236.228883][ T7009] sysfs_create_dir_ns+0x244/0x264 [ 236.229754][ T7009] kobject_add_internal+0x5ac/0xc3c [ 236.230620][ T7009] kobject_init_and_add+0x124/0x190 [ 236.231521][ T7009] gfs2_sys_fs_add+0x200/0x41c [ 236.232334][ T7009] gfs2_fill_super+0xddc/0x1a18 [ 236.233169][ T7009] get_tree_bdev+0x358/0x544 [ 236.233935][ T7009] gfs2_get_tree+0x54/0x1b4 [ 236.234747][ T7009] vfs_get_tree+0x90/0x274 [ 236.235520][ T7009] do_new_mount+0x228/0x810 [ 236.236293][ T7009] path_mount+0x5bc/0x1008 [ 236.237029][ T7009] __arm64_sys_mount+0x514/0x5f0 [ 236.237836][ T7009] invoke_syscall+0x98/0x2b0 [ 236.238595][ T7009] el0_svc_common+0x138/0x258 [ 236.239356][ T7009] do_el0_svc+0x58/0x13c [ 236.240089][ T7009] el0_svc+0x78/0x1d0 [ 236.240727][ T7009] el0t_64_sync_handler+0xcc/0xe4 [ 236.241580][ T7009] el0t_64_sync+0x1a0/0x1a4 [ 236.243975][ T7009] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.245955][ T7009] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.452908][ T7012] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.454071][ T7012] CPU: 0 PID: 7012 Comm: syz.1.694 Not tainted syzkaller #0 [ 236.455210][ T7012] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 236.456826][ T7012] Call trace: [ 236.457318][ T7012] dump_backtrace+0x0/0x458 [ 236.457987][ T7012] show_stack+0x2c/0x3c [ 236.458655][ T7012] __dump_stack+0x30/0x40 [ 236.459352][ T7012] dump_stack_lvl+0xf4/0x15c [ 236.460065][ T7012] dump_stack+0x1c/0x5c [ 236.460792][ T7012] sysfs_create_dir_ns+0x244/0x264 [ 236.461660][ T7012] kobject_add_internal+0x5ac/0xc3c [ 236.462609][ T7012] kobject_init_and_add+0x124/0x190 [ 236.463469][ T7012] gfs2_sys_fs_add+0x200/0x41c [ 236.464369][ T7012] gfs2_fill_super+0xddc/0x1a18 [ 236.465168][ T7012] get_tree_bdev+0x358/0x544 [ 236.465958][ T7012] gfs2_get_tree+0x54/0x1b4 [ 236.466729][ T7012] vfs_get_tree+0x90/0x274 [ 236.467458][ T7012] do_new_mount+0x228/0x810 [ 236.468171][ T7012] path_mount+0x5bc/0x1008 [ 236.468907][ T7012] __arm64_sys_mount+0x514/0x5f0 [ 236.469733][ T7012] invoke_syscall+0x98/0x2b0 [ 236.470470][ T7012] el0_svc_common+0x138/0x258 [ 236.471242][ T7012] do_el0_svc+0x58/0x13c [ 236.472019][ T7012] el0_svc+0x78/0x1d0 [ 236.472669][ T7012] el0t_64_sync_handler+0xcc/0xe4 [ 236.473459][ T7012] el0t_64_sync+0x1a0/0x1a4 [ 236.474979][ T7012] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.477198][ T7012] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.650614][ T27] INFO: task syz-executor:4713 blocked for more than 143 seconds. [ 236.652013][ T27] Not tainted syzkaller #0 [ 236.652839][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 236.654303][ T27] task:syz-executor state:D stack: 0 pid: 4713 ppid: 1 flags:0x00000001 [ 236.655886][ T27] Call trace: [ 236.656426][ T27] __switch_to+0x2f4/0x540 [ 236.657169][ T27] __schedule+0xdfc/0x1bc4 [ 236.657883][ T27] schedule+0x11c/0x1c8 [ 236.658528][ T27] bit_wait+0x1c/0xac [ 236.659226][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 236.660152][ T27] gfs2_glock_nq+0x8f8/0x1404 [ 236.662481][ T27] __gfs2_lookup+0x120/0x28c [ 236.663350][ T7015] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.664567][ T7015] CPU: 0 PID: 7015 Comm: syz.1.695 Not tainted syzkaller #0 [ 236.665765][ T7015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 236.667436][ T7015] Call trace: [ 236.667984][ T7015] dump_backtrace+0x0/0x458 [ 236.668687][ T7015] show_stack+0x2c/0x3c [ 236.669436][ T7015] __dump_stack+0x30/0x40 [ 236.670189][ T7015] dump_stack_lvl+0xf4/0x15c [ 236.670961][ T7015] dump_stack+0x1c/0x5c [ 236.671627][ T7015] sysfs_create_dir_ns+0x244/0x264 [ 236.672452][ T7015] kobject_add_internal+0x5ac/0xc3c [ 236.673371][ T7015] kobject_init_and_add+0x124/0x190 [ 236.674256][ T7015] gfs2_sys_fs_add+0x200/0x41c [ 236.675057][ T7015] gfs2_fill_super+0xddc/0x1a18 [ 236.675882][ T7015] get_tree_bdev+0x358/0x544 [ 236.676671][ T7015] gfs2_get_tree+0x54/0x1b4 [ 236.677433][ T7015] vfs_get_tree+0x90/0x274 [ 236.678159][ T7015] do_new_mount+0x228/0x810 [ 236.678967][ T7015] path_mount+0x5bc/0x1008 [ 236.679687][ T7015] __arm64_sys_mount+0x514/0x5f0 [ 236.680531][ T7015] invoke_syscall+0x98/0x2b0 [ 236.681237][ T7015] el0_svc_common+0x138/0x258 [ 236.682017][ T7015] do_el0_svc+0x58/0x13c [ 236.682719][ T7015] el0_svc+0x78/0x1d0 [ 236.683453][ T7015] el0t_64_sync_handler+0xcc/0xe4 [ 236.684331][ T7015] el0t_64_sync+0x1a0/0x1a4 [ 236.686466][ T27] gfs2_lookup+0x2c/0x3c [ 236.687134][ T27] __lookup_slow+0x25c/0x39c [ 236.687934][ T27] lookup_slow+0x5c/0x80 [ 236.688678][ T27] walk_component+0x2b0/0x3a8 [ 236.689458][ T27] path_lookupat+0x13c/0x3d0 [ 236.690198][ T27] filename_lookup+0x1b4/0x464 [ 236.691363][ T27] user_path_at_empty+0x5c/0x1a0 [ 236.692158][ T27] __arm64_sys_umount+0xf8/0x184 [ 236.692957][ T27] invoke_syscall+0x98/0x2b0 [ 236.693755][ T27] el0_svc_common+0x138/0x258 [ 236.694521][ T27] do_el0_svc+0x58/0x13c [ 236.695268][ T27] el0_svc+0x78/0x1d0 [ 236.695950][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 236.696767][ T27] el0t_64_sync+0x1a0/0x1a4 [ 236.697540][ T27] [ 236.697540][ T27] Showing all locks held in the system: [ 236.698738][ T27] 1 lock held by khungtaskd/27: [ 236.699490][ T27] #0: ffff800014471360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 236.701945][ T27] 2 locks held by getty/3803: [ 236.702705][ T27] #0: ffff0000d3bcc098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 236.704350][ T27] #1: ffff80001bc4e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 236.704846][ T7015] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.706046][ T27] 1 lock held by syz-executor/4713: [ 236.708042][ T7015] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.708857][ T27] #0: ffff0000de722338 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 [ 236.711608][ T27] 2 locks held by syz.1.695/7015: [ 236.712412][ T27] #0: ffff0000cb9b3118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 236.713876][ T27] #1: ffff0000cbbc3468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x50/0x1fc [ 236.715349][ T27] [ 236.715721][ T27] ============================================= [ 236.715721][ T27] [ 236.717068][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 236.718037][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 236.719286][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 [ 236.720896][ T27] Call trace: [ 236.721443][ T27] dump_backtrace+0x0/0x458 [ 236.722193][ T27] show_stack+0x2c/0x3c [ 236.722896][ T27] __dump_stack+0x30/0x40 [ 236.723606][ T27] dump_stack_lvl+0xf4/0x15c [ 236.724368][ T27] dump_stack+0x1c/0x5c [ 236.725059][ T27] panic+0x2fc/0x860 [ 236.725727][ T27] hung_task_panic+0x0/0x2c [ 236.726476][ T27] kthread+0x374/0x454 [ 236.727141][ T27] ret_from_fork+0x10/0x20 [ 236.727927][ T27] SMP: stopping secondary CPUs [ 236.728709][ T27] Kernel Offset: disabled [ 236.729450][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 236.730412][ T27] Memory Limit: none [ 237.076988][ T27] Rebooting in 86400 seconds..