6957] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.981666][ T6957] CPU: 1 PID: 6957 Comm: syz.1.625 Not tainted syzkaller #0 [ 220.982789][ T6957] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.984314][ T6957] Call trace: [ 220.984811][ T6957] dump_backtrace+0x0/0x458 [ 220.985527][ T6957] show_stack+0x2c/0x3c [ 220.986231][ T6957] __dump_stack+0x30/0x40 [ 220.986995][ T6957] dump_stack_lvl+0xf4/0x15c [ 220.987740][ T6957] dump_stack+0x1c/0x5c [ 220.988406][ T6957] sysfs_create_dir_ns+0x244/0x264 [ 220.989251][ T6957] kobject_add_internal+0x5ac/0xc3c [ 220.990094][ T6957] kobject_init_and_add+0x124/0x190 [ 220.990893][ T6957] gfs2_sys_fs_add+0x200/0x41c [ 220.991597][ T6957] gfs2_fill_super+0xddc/0x1a18 [ 220.992345][ T6957] get_tree_bdev+0x358/0x544 [ 220.993017][ T6957] gfs2_get_tree+0x54/0x1b4 [ 220.993722][ T6957] vfs_get_tree+0x90/0x274 [ 220.994460][ T6957] do_new_mount+0x228/0x810 [ 220.995185][ T6957] path_mount+0x5bc/0x1008 [ 220.995871][ T6957] __arm64_sys_mount+0x514/0x5f0 [ 220.996623][ T6957] invoke_syscall+0x98/0x2b0 [ 220.997357][ T6957] el0_svc_common+0x138/0x258 [ 220.998068][ T6957] do_el0_svc+0x58/0x13c [ 220.998741][ T6957] el0_svc+0x78/0x1d0 [ 220.999321][ T6957] el0t_64_sync_handler+0xcc/0xe4 [ 221.000047][ T6957] el0t_64_sync+0x1a0/0x1a4 [ 221.002229][ T6957] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.004609][ T6957] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.139435][ T6960] loop1: detected capacity change from 0 to 32768 [ 221.226554][ T6960] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.227623][ T6960] CPU: 0 PID: 6960 Comm: syz.1.626 Not tainted syzkaller #0 [ 221.228816][ T6960] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.230404][ T6960] Call trace: [ 221.230934][ T6960] dump_backtrace+0x0/0x458 [ 221.231636][ T6960] show_stack+0x2c/0x3c [ 221.232259][ T6960] __dump_stack+0x30/0x40 [ 221.232947][ T6960] dump_stack_lvl+0xf4/0x15c [ 221.233615][ T6960] dump_stack+0x1c/0x5c [ 221.234283][ T6960] sysfs_create_dir_ns+0x244/0x264 [ 221.235139][ T6960] kobject_add_internal+0x5ac/0xc3c [ 221.236037][ T6960] kobject_init_and_add+0x124/0x190 [ 221.236886][ T6960] gfs2_sys_fs_add+0x200/0x41c [ 221.237631][ T6960] gfs2_fill_super+0xddc/0x1a18 [ 221.238388][ T6960] get_tree_bdev+0x358/0x544 [ 221.239147][ T6960] gfs2_get_tree+0x54/0x1b4 [ 221.239851][ T6960] vfs_get_tree+0x90/0x274 [ 221.240543][ T6960] do_new_mount+0x228/0x810 [ 221.241317][ T6960] path_mount+0x5bc/0x1008 [ 221.242060][ T6960] __arm64_sys_mount+0x514/0x5f0 [ 221.242845][ T6960] invoke_syscall+0x98/0x2b0 [ 221.243574][ T6960] el0_svc_common+0x138/0x258 [ 221.244317][ T6960] do_el0_svc+0x58/0x13c [ 221.245006][ T6960] el0_svc+0x78/0x1d0 [ 221.245688][ T6960] el0t_64_sync_handler+0xcc/0xe4 [ 221.246506][ T6960] el0t_64_sync+0x1a0/0x1a4 [ 221.248747][ T6960] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.250667][ T6960] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.497214][ T6963] loop1: detected capacity change from 0 to 32768 [ 221.546080][ T6963] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.547258][ T6963] CPU: 0 PID: 6963 Comm: syz.1.627 Not tainted syzkaller #0 [ 221.548423][ T6963] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.549978][ T6963] Call trace: [ 221.550514][ T6963] dump_backtrace+0x0/0x458 [ 221.551203][ T6963] show_stack+0x2c/0x3c [ 221.551872][ T6963] __dump_stack+0x30/0x40 [ 221.552561][ T6963] dump_stack_lvl+0xf4/0x15c [ 221.553293][ T6963] dump_stack+0x1c/0x5c [ 221.553974][ T6963] sysfs_create_dir_ns+0x244/0x264 [ 221.554822][ T6963] kobject_add_internal+0x5ac/0xc3c [ 221.555656][ T6963] kobject_init_and_add+0x124/0x190 [ 221.556495][ T6963] gfs2_sys_fs_add+0x200/0x41c [ 221.557257][ T6963] gfs2_fill_super+0xddc/0x1a18 [ 221.558092][ T6963] get_tree_bdev+0x358/0x544 [ 221.558831][ T6963] gfs2_get_tree+0x54/0x1b4 [ 221.559553][ T6963] vfs_get_tree+0x90/0x274 [ 221.560257][ T6963] do_new_mount+0x228/0x810 [ 221.561012][ T6963] path_mount+0x5bc/0x1008 [ 221.561749][ T6963] __arm64_sys_mount+0x514/0x5f0 [ 221.562578][ T6963] invoke_syscall+0x98/0x2b0 [ 221.563325][ T6963] el0_svc_common+0x138/0x258 [ 221.564085][ T6963] do_el0_svc+0x58/0x13c [ 221.564794][ T6963] el0_svc+0x78/0x1d0 [ 221.565454][ T6963] el0t_64_sync_handler+0xcc/0xe4 [ 221.566273][ T6963] el0t_64_sync+0x1a0/0x1a4 [ 221.568477][ T6963] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.570771][ T6963] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.790161][ T6966] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.791392][ T6966] CPU: 0 PID: 6966 Comm: syz.1.628 Not tainted syzkaller #0 [ 221.792550][ T6966] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.794026][ T6966] Call trace: [ 221.794519][ T6966] dump_backtrace+0x0/0x458 [ 221.795260][ T6966] show_stack+0x2c/0x3c [ 221.795952][ T6966] __dump_stack+0x30/0x40 [ 221.796709][ T6966] dump_stack_lvl+0xf4/0x15c [ 221.797441][ T6966] dump_stack+0x1c/0x5c [ 221.798142][ T6966] sysfs_create_dir_ns+0x244/0x264 [ 221.799006][ T6966] kobject_add_internal+0x5ac/0xc3c [ 221.799860][ T6966] kobject_init_and_add+0x124/0x190 [ 221.800681][ T6966] gfs2_sys_fs_add+0x200/0x41c [ 221.801443][ T6966] gfs2_fill_super+0xddc/0x1a18 [ 221.802167][ T6966] get_tree_bdev+0x358/0x544 [ 221.802879][ T6966] gfs2_get_tree+0x54/0x1b4 [ 221.803589][ T6966] vfs_get_tree+0x90/0x274 [ 221.804254][ T6966] do_new_mount+0x228/0x810 [ 221.804907][ T6966] path_mount+0x5bc/0x1008 [ 221.805573][ T6966] __arm64_sys_mount+0x514/0x5f0 [ 221.806323][ T6966] invoke_syscall+0x98/0x2b0 [ 221.807014][ T6966] el0_svc_common+0x138/0x258 [ 221.807718][ T6966] do_el0_svc+0x58/0x13c [ 221.808425][ T6966] el0_svc+0x78/0x1d0 [ 221.809054][ T6966] el0t_64_sync_handler+0xcc/0xe4 [ 221.809863][ T6966] el0t_64_sync+0x1a0/0x1a4 [ 221.829223][ T6966] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.831748][ T6966] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.944060][ T4170] Bluetooth: hci2: command 0x041b tx timeout [ 221.985198][ T6969] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.986368][ T6969] CPU: 1 PID: 6969 Comm: syz.1.629 Not tainted syzkaller #0 [ 221.987522][ T6969] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.989119][ T6969] Call trace: [ 221.989649][ T6969] dump_backtrace+0x0/0x458 [ 221.990391][ T6969] show_stack+0x2c/0x3c [ 221.991050][ T6969] __dump_stack+0x30/0x40 [ 221.991750][ T6969] dump_stack_lvl+0xf4/0x15c [ 221.992503][ T6969] dump_stack+0x1c/0x5c [ 221.993177][ T6969] sysfs_create_dir_ns+0x244/0x264 [ 221.993972][ T6969] kobject_add_internal+0x5ac/0xc3c [ 221.994791][ T6969] kobject_init_and_add+0x124/0x190 [ 221.995645][ T6969] gfs2_sys_fs_add+0x200/0x41c [ 221.996450][ T6969] gfs2_fill_super+0xddc/0x1a18 [ 221.997182][ T6969] get_tree_bdev+0x358/0x544 [ 221.997861][ T6969] gfs2_get_tree+0x54/0x1b4 [ 221.998582][ T6969] vfs_get_tree+0x90/0x274 [ 221.999269][ T6969] do_new_mount+0x228/0x810 [ 221.999950][ T6969] path_mount+0x5bc/0x1008 [ 222.000614][ T6969] __arm64_sys_mount+0x514/0x5f0 [ 222.001390][ T6969] invoke_syscall+0x98/0x2b0 [ 222.002172][ T6969] el0_svc_common+0x138/0x258 [ 222.002936][ T6969] do_el0_svc+0x58/0x13c [ 222.003681][ T6969] el0_svc+0x78/0x1d0 [ 222.004339][ T6969] el0t_64_sync_handler+0xcc/0xe4 [ 222.005156][ T6969] el0t_64_sync+0x1a0/0x1a4 [ 222.008523][ T6969] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.010451][ T6969] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.206029][ T6972] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.207190][ T6972] CPU: 0 PID: 6972 Comm: syz.1.630 Not tainted syzkaller #0 [ 222.208422][ T6972] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.210064][ T6972] Call trace: [ 222.210593][ T6972] dump_backtrace+0x0/0x458 [ 222.211337][ T6972] show_stack+0x2c/0x3c [ 222.212007][ T6972] __dump_stack+0x30/0x40 [ 222.212664][ T6972] dump_stack_lvl+0xf4/0x15c [ 222.213349][ T6972] dump_stack+0x1c/0x5c [ 222.213978][ T6972] sysfs_create_dir_ns+0x244/0x264 [ 222.214753][ T6972] kobject_add_internal+0x5ac/0xc3c [ 222.215610][ T6972] kobject_init_and_add+0x124/0x190 [ 222.216516][ T6972] gfs2_sys_fs_add+0x200/0x41c [ 222.217277][ T6972] gfs2_fill_super+0xddc/0x1a18 [ 222.218060][ T6972] get_tree_bdev+0x358/0x544 [ 222.218805][ T6972] gfs2_get_tree+0x54/0x1b4 [ 222.219514][ T6972] vfs_get_tree+0x90/0x274 [ 222.220181][ T6972] do_new_mount+0x228/0x810 [ 222.220853][ T6972] path_mount+0x5bc/0x1008 [ 222.221526][ T6972] __arm64_sys_mount+0x514/0x5f0 [ 222.222271][ T6972] invoke_syscall+0x98/0x2b0 [ 222.222965][ T6972] el0_svc_common+0x138/0x258 [ 222.223645][ T6972] do_el0_svc+0x58/0x13c [ 222.224330][ T6972] el0_svc+0x78/0x1d0 [ 222.224901][ T6972] el0t_64_sync_handler+0xcc/0xe4 [ 222.225745][ T6972] el0t_64_sync+0x1a0/0x1a4 [ 222.227815][ T6972] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.229750][ T6972] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.489709][ T6975] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.490977][ T6975] CPU: 0 PID: 6975 Comm: syz.1.631 Not tainted syzkaller #0 [ 222.492100][ T6975] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.493747][ T6975] Call trace: [ 222.494315][ T6975] dump_backtrace+0x0/0x458 [ 222.495061][ T6975] show_stack+0x2c/0x3c [ 222.495746][ T6975] __dump_stack+0x30/0x40 [ 222.496452][ T6975] dump_stack_lvl+0xf4/0x15c [ 222.497191][ T6975] dump_stack+0x1c/0x5c [ 222.497900][ T6975] sysfs_create_dir_ns+0x244/0x264 [ 222.498735][ T6975] kobject_add_internal+0x5ac/0xc3c [ 222.499599][ T6975] kobject_init_and_add+0x124/0x190 [ 222.500366][ T6975] gfs2_sys_fs_add+0x200/0x41c [ 222.501151][ T6975] gfs2_fill_super+0xddc/0x1a18 [ 222.501925][ T6975] get_tree_bdev+0x358/0x544 [ 222.502675][ T6975] gfs2_get_tree+0x54/0x1b4 [ 222.503339][ T6975] vfs_get_tree+0x90/0x274 [ 222.504016][ T6975] do_new_mount+0x228/0x810 [ 222.504718][ T6975] path_mount+0x5bc/0x1008 [ 222.505424][ T6975] __arm64_sys_mount+0x514/0x5f0 [ 222.506176][ T6975] invoke_syscall+0x98/0x2b0 [ 222.506879][ T6975] el0_svc_common+0x138/0x258 [ 222.507619][ T6975] do_el0_svc+0x58/0x13c [ 222.508302][ T6975] el0_svc+0x78/0x1d0 [ 222.508901][ T6975] el0t_64_sync_handler+0xcc/0xe4 [ 222.509743][ T6975] el0t_64_sync+0x1a0/0x1a4 [ 222.511679][ T6975] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.513743][ T6975] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.699499][ T6978] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.700608][ T6978] CPU: 0 PID: 6978 Comm: syz.1.632 Not tainted syzkaller #0 [ 222.701679][ T6978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.703144][ T6978] Call trace: [ 222.703669][ T6978] dump_backtrace+0x0/0x458 [ 222.704411][ T6978] show_stack+0x2c/0x3c [ 222.705139][ T6978] __dump_stack+0x30/0x40 [ 222.705883][ T6978] dump_stack_lvl+0xf4/0x15c [ 222.706616][ T6978] dump_stack+0x1c/0x5c [ 222.707283][ T6978] sysfs_create_dir_ns+0x244/0x264 [ 222.708125][ T6978] kobject_add_internal+0x5ac/0xc3c [ 222.709005][ T6978] kobject_init_and_add+0x124/0x190 [ 222.709881][ T6978] gfs2_sys_fs_add+0x200/0x41c [ 222.710647][ T6978] gfs2_fill_super+0xddc/0x1a18 [ 222.711449][ T6978] get_tree_bdev+0x358/0x544 [ 222.712155][ T6978] gfs2_get_tree+0x54/0x1b4 [ 222.712861][ T6978] vfs_get_tree+0x90/0x274 [ 222.713538][ T6978] do_new_mount+0x228/0x810 [ 222.714304][ T6978] path_mount+0x5bc/0x1008 [ 222.715066][ T6978] __arm64_sys_mount+0x514/0x5f0 [ 222.715916][ T6978] invoke_syscall+0x98/0x2b0 [ 222.716661][ T6978] el0_svc_common+0x138/0x258 [ 222.717418][ T6978] do_el0_svc+0x58/0x13c [ 222.718103][ T6978] el0_svc+0x78/0x1d0 [ 222.718779][ T6978] el0t_64_sync_handler+0xcc/0xe4 [ 222.719609][ T6978] el0t_64_sync+0x1a0/0x1a4 [ 222.720441][ T6978] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.722518][ T6978] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.895161][ T6981] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.896329][ T6981] CPU: 1 PID: 6981 Comm: syz.1.633 Not tainted syzkaller #0 [ 222.897522][ T6981] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.899170][ T6981] Call trace: [ 222.899709][ T6981] dump_backtrace+0x0/0x458 [ 222.900433][ T6981] show_stack+0x2c/0x3c [ 222.901130][ T6981] __dump_stack+0x30/0x40 [ 222.901858][ T6981] dump_stack_lvl+0xf4/0x15c [ 222.902587][ T6981] dump_stack+0x1c/0x5c [ 222.903261][ T6981] sysfs_create_dir_ns+0x244/0x264 [ 222.904107][ T6981] kobject_add_internal+0x5ac/0xc3c [ 222.904940][ T6981] kobject_init_and_add+0x124/0x190 [ 222.905782][ T6981] gfs2_sys_fs_add+0x200/0x41c [ 222.906546][ T6981] gfs2_fill_super+0xddc/0x1a18 [ 222.907322][ T6981] get_tree_bdev+0x358/0x544 [ 222.908040][ T6981] gfs2_get_tree+0x54/0x1b4 [ 222.908778][ T6981] vfs_get_tree+0x90/0x274 [ 222.909469][ T6981] do_new_mount+0x228/0x810 [ 222.910172][ T6981] path_mount+0x5bc/0x1008 [ 222.910848][ T6981] __arm64_sys_mount+0x514/0x5f0 [ 222.911632][ T6981] invoke_syscall+0x98/0x2b0 [ 222.912350][ T6981] el0_svc_common+0x138/0x258 [ 222.913081][ T6981] do_el0_svc+0x58/0x13c [ 222.913715][ T6981] el0_svc+0x78/0x1d0 [ 222.914316][ T6981] el0t_64_sync_handler+0xcc/0xe4 [ 222.915066][ T6981] el0t_64_sync+0x1a0/0x1a4 [ 222.918908][ T6981] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.920907][ T6981] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.109918][ T6984] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.111126][ T6984] CPU: 1 PID: 6984 Comm: syz.1.634 Not tainted syzkaller #0 [ 223.112285][ T6984] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.113899][ T6984] Call trace: [ 223.114441][ T6984] dump_backtrace+0x0/0x458 [ 223.115221][ T6984] show_stack+0x2c/0x3c [ 223.115968][ T6984] __dump_stack+0x30/0x40 [ 223.116660][ T6984] dump_stack_lvl+0xf4/0x15c [ 223.117407][ T6984] dump_stack+0x1c/0x5c [ 223.118072][ T6984] sysfs_create_dir_ns+0x244/0x264 [ 223.118897][ T6984] kobject_add_internal+0x5ac/0xc3c [ 223.119779][ T6984] kobject_init_and_add+0x124/0x190 [ 223.120613][ T6984] gfs2_sys_fs_add+0x200/0x41c [ 223.121369][ T6984] gfs2_fill_super+0xddc/0x1a18 [ 223.122107][ T6984] get_tree_bdev+0x358/0x544 [ 223.122847][ T6984] gfs2_get_tree+0x54/0x1b4 [ 223.123591][ T6984] vfs_get_tree+0x90/0x274 [ 223.124290][ T6984] do_new_mount+0x228/0x810 [ 223.125013][ T6984] path_mount+0x5bc/0x1008 [ 223.125728][ T6984] __arm64_sys_mount+0x514/0x5f0 [ 223.126474][ T6984] invoke_syscall+0x98/0x2b0 [ 223.127184][ T6984] el0_svc_common+0x138/0x258 [ 223.127889][ T6984] do_el0_svc+0x58/0x13c [ 223.128563][ T6984] el0_svc+0x78/0x1d0 [ 223.129178][ T6984] el0t_64_sync_handler+0xcc/0xe4 [ 223.130020][ T6984] el0t_64_sync+0x1a0/0x1a4 [ 223.132249][ T6984] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.134445][ T6984] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.309654][ T6987] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.310857][ T6987] CPU: 1 PID: 6987 Comm: syz.1.635 Not tainted syzkaller #0 [ 223.312042][ T6987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.313611][ T6987] Call trace: [ 223.314126][ T6987] dump_backtrace+0x0/0x458 [ 223.314824][ T6987] show_stack+0x2c/0x3c [ 223.315440][ T6987] __dump_stack+0x30/0x40 [ 223.316053][ T6987] dump_stack_lvl+0xf4/0x15c [ 223.316750][ T6987] dump_stack+0x1c/0x5c [ 223.317359][ T6987] sysfs_create_dir_ns+0x244/0x264 [ 223.318118][ T6987] kobject_add_internal+0x5ac/0xc3c [ 223.319008][ T6987] kobject_init_and_add+0x124/0x190 [ 223.319803][ T6987] gfs2_sys_fs_add+0x200/0x41c [ 223.320545][ T6987] gfs2_fill_super+0xddc/0x1a18 [ 223.321335][ T6987] get_tree_bdev+0x358/0x544 [ 223.322018][ T6987] gfs2_get_tree+0x54/0x1b4 [ 223.322767][ T6987] vfs_get_tree+0x90/0x274 [ 223.323535][ T6987] do_new_mount+0x228/0x810 [ 223.324230][ T6987] path_mount+0x5bc/0x1008 [ 223.324989][ T6987] __arm64_sys_mount+0x514/0x5f0 [ 223.325811][ T6987] invoke_syscall+0x98/0x2b0 [ 223.326594][ T6987] el0_svc_common+0x138/0x258 [ 223.327388][ T6987] do_el0_svc+0x58/0x13c [ 223.328117][ T6987] el0_svc+0x78/0x1d0 [ 223.328762][ T6987] el0t_64_sync_handler+0xcc/0xe4 [ 223.329625][ T6987] el0t_64_sync+0x1a0/0x1a4 [ 223.331249][ T6987] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.333203][ T6987] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.470955][ T6990] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.472145][ T6990] CPU: 1 PID: 6990 Comm: syz.1.636 Not tainted syzkaller #0 [ 223.473370][ T6990] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.474919][ T6990] Call trace: [ 223.475467][ T6990] dump_backtrace+0x0/0x458 [ 223.476158][ T6990] show_stack+0x2c/0x3c [ 223.476770][ T6990] __dump_stack+0x30/0x40 [ 223.477439][ T6990] dump_stack_lvl+0xf4/0x15c [ 223.478184][ T6990] dump_stack+0x1c/0x5c [ 223.478893][ T6990] sysfs_create_dir_ns+0x244/0x264 [ 223.479723][ T6990] kobject_add_internal+0x5ac/0xc3c [ 223.480548][ T6990] kobject_init_and_add+0x124/0x190 [ 223.481338][ T6990] gfs2_sys_fs_add+0x200/0x41c [ 223.482079][ T6990] gfs2_fill_super+0xddc/0x1a18 [ 223.482848][ T6990] get_tree_bdev+0x358/0x544 [ 223.483521][ T6990] gfs2_get_tree+0x54/0x1b4 [ 223.484197][ T6990] vfs_get_tree+0x90/0x274 [ 223.484863][ T6990] do_new_mount+0x228/0x810 [ 223.485602][ T6990] path_mount+0x5bc/0x1008 [ 223.486337][ T6990] __arm64_sys_mount+0x514/0x5f0 [ 223.487102][ T6990] invoke_syscall+0x98/0x2b0 [ 223.487812][ T6990] el0_svc_common+0x138/0x258 [ 223.488547][ T6990] do_el0_svc+0x58/0x13c [ 223.489183][ T6990] el0_svc+0x78/0x1d0 [ 223.489799][ T6990] el0t_64_sync_handler+0xcc/0xe4 [ 223.490646][ T6990] el0t_64_sync+0x1a0/0x1a4 [ 223.492545][ T6990] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.494495][ T6990] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.670764][ T6993] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.671980][ T6993] CPU: 0 PID: 6993 Comm: syz.1.637 Not tainted syzkaller #0 [ 223.673142][ T6993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.674747][ T6993] Call trace: [ 223.675264][ T6993] dump_backtrace+0x0/0x458 [ 223.675932][ T6993] show_stack+0x2c/0x3c [ 223.676538][ T6993] __dump_stack+0x30/0x40 [ 223.677172][ T6993] dump_stack_lvl+0xf4/0x15c [ 223.677948][ T6993] dump_stack+0x1c/0x5c [ 223.678629][ T6993] sysfs_create_dir_ns+0x244/0x264 [ 223.679499][ T6993] kobject_add_internal+0x5ac/0xc3c [ 223.680386][ T6993] kobject_init_and_add+0x124/0x190 [ 223.681278][ T6993] gfs2_sys_fs_add+0x200/0x41c [ 223.682050][ T6993] gfs2_fill_super+0xddc/0x1a18 [ 223.682826][ T6993] get_tree_bdev+0x358/0x544 [ 223.683527][ T6993] gfs2_get_tree+0x54/0x1b4 [ 223.684211][ T6993] vfs_get_tree+0x90/0x274 [ 223.684891][ T6993] do_new_mount+0x228/0x810 [ 223.685644][ T6993] path_mount+0x5bc/0x1008 [ 223.686390][ T6993] __arm64_sys_mount+0x514/0x5f0 [ 223.687196][ T6993] invoke_syscall+0x98/0x2b0 [ 223.687966][ T6993] el0_svc_common+0x138/0x258 [ 223.688730][ T6993] do_el0_svc+0x58/0x13c [ 223.689450][ T6993] el0_svc+0x78/0x1d0 [ 223.690136][ T6993] el0t_64_sync_handler+0xcc/0xe4 [ 223.690915][ T6993] el0t_64_sync+0x1a0/0x1a4 [ 223.692387][ T6993] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.694476][ T6993] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.865341][ T6996] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.866477][ T6996] CPU: 1 PID: 6996 Comm: syz.1.638 Not tainted syzkaller #0 [ 223.867647][ T6996] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.869250][ T6996] Call trace: [ 223.869779][ T6996] dump_backtrace+0x0/0x458 [ 223.870499][ T6996] show_stack+0x2c/0x3c [ 223.871185][ T6996] __dump_stack+0x30/0x40 [ 223.871859][ T6996] dump_stack_lvl+0xf4/0x15c [ 223.872570][ T6996] dump_stack+0x1c/0x5c [ 223.873197][ T6996] sysfs_create_dir_ns+0x244/0x264 [ 223.874008][ T6996] kobject_add_internal+0x5ac/0xc3c [ 223.874859][ T6996] kobject_init_and_add+0x124/0x190 [ 223.875695][ T6996] gfs2_sys_fs_add+0x200/0x41c [ 223.876538][ T6996] gfs2_fill_super+0xddc/0x1a18 [ 223.877342][ T6996] get_tree_bdev+0x358/0x544 [ 223.878076][ T6996] gfs2_get_tree+0x54/0x1b4 [ 223.878799][ T6996] vfs_get_tree+0x90/0x274 [ 223.879502][ T6996] do_new_mount+0x228/0x810 [ 223.880286][ T6996] path_mount+0x5bc/0x1008 [ 223.881024][ T6996] __arm64_sys_mount+0x514/0x5f0 [ 223.881875][ T6996] invoke_syscall+0x98/0x2b0 [ 223.882627][ T6996] el0_svc_common+0x138/0x258 [ 223.883392][ T6996] do_el0_svc+0x58/0x13c [ 223.884085][ T6996] el0_svc+0x78/0x1d0 [ 223.884709][ T6996] el0t_64_sync_handler+0xcc/0xe4 [ 223.885492][ T6996] el0t_64_sync+0x1a0/0x1a4 [ 223.888010][ T6996] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.890094][ T6996] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.024028][ T21] Bluetooth: hci2: command 0x040f tx timeout [ 224.079562][ T6999] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.080793][ T6999] CPU: 1 PID: 6999 Comm: syz.1.639 Not tainted syzkaller #0 [ 224.081955][ T6999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.083577][ T6999] Call trace: [ 224.084095][ T6999] dump_backtrace+0x0/0x458 [ 224.084838][ T6999] show_stack+0x2c/0x3c [ 224.085485][ T6999] __dump_stack+0x30/0x40 [ 224.086198][ T6999] dump_stack_lvl+0xf4/0x15c [ 224.086972][ T6999] dump_stack+0x1c/0x5c [ 224.087671][ T6999] sysfs_create_dir_ns+0x244/0x264 [ 224.088529][ T6999] kobject_add_internal+0x5ac/0xc3c [ 224.089430][ T6999] kobject_init_and_add+0x124/0x190 [ 224.090213][ T6999] gfs2_sys_fs_add+0x200/0x41c [ 224.090979][ T6999] gfs2_fill_super+0xddc/0x1a18 [ 224.091758][ T6999] get_tree_bdev+0x358/0x544 [ 224.092526][ T6999] gfs2_get_tree+0x54/0x1b4 [ 224.093275][ T6999] vfs_get_tree+0x90/0x274 [ 224.094005][ T6999] do_new_mount+0x228/0x810 [ 224.094756][ T6999] path_mount+0x5bc/0x1008 [ 224.095481][ T6999] __arm64_sys_mount+0x514/0x5f0 [ 224.096270][ T6999] invoke_syscall+0x98/0x2b0 [ 224.096994][ T6999] el0_svc_common+0x138/0x258 [ 224.097751][ T6999] do_el0_svc+0x58/0x13c [ 224.098443][ T6999] el0_svc+0x78/0x1d0 [ 224.099099][ T6999] el0t_64_sync_handler+0xcc/0xe4 [ 224.099935][ T6999] el0t_64_sync+0x1a0/0x1a4 [ 224.102064][ T6999] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.104130][ T6999] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.315160][ T7002] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.316346][ T7002] CPU: 1 PID: 7002 Comm: syz.1.640 Not tainted syzkaller #0 [ 224.317458][ T7002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.319024][ T7002] Call trace: [ 224.319531][ T7002] dump_backtrace+0x0/0x458 [ 224.320275][ T7002] show_stack+0x2c/0x3c [ 224.320971][ T7002] __dump_stack+0x30/0x40 [ 224.321680][ T7002] dump_stack_lvl+0xf4/0x15c [ 224.322411][ T7002] dump_stack+0x1c/0x5c [ 224.323085][ T7002] sysfs_create_dir_ns+0x244/0x264 [ 224.323922][ T7002] kobject_add_internal+0x5ac/0xc3c [ 224.324751][ T7002] kobject_init_and_add+0x124/0x190 [ 224.325583][ T7002] gfs2_sys_fs_add+0x200/0x41c [ 224.326403][ T7002] gfs2_fill_super+0xddc/0x1a18 [ 224.327174][ T7002] get_tree_bdev+0x358/0x544 [ 224.327959][ T7002] gfs2_get_tree+0x54/0x1b4 [ 224.328707][ T7002] vfs_get_tree+0x90/0x274 [ 224.329404][ T7002] do_new_mount+0x228/0x810 [ 224.330124][ T7002] path_mount+0x5bc/0x1008 [ 224.330815][ T7002] __arm64_sys_mount+0x514/0x5f0 [ 224.331631][ T7002] invoke_syscall+0x98/0x2b0 [ 224.332409][ T7002] el0_svc_common+0x138/0x258 [ 224.333167][ T7002] do_el0_svc+0x58/0x13c [ 224.333881][ T7002] el0_svc+0x78/0x1d0 [ 224.334547][ T7002] el0t_64_sync_handler+0xcc/0xe4 [ 224.335346][ T7002] el0t_64_sync+0x1a0/0x1a4 [ 224.337572][ T7002] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.339613][ T7002] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:44 executed programs: 627 [ 224.470640][ T7005] set_capacity_and_notify: 13 callbacks suppressed [ 224.470649][ T7005] loop1: detected capacity change from 0 to 32768 [ 224.552025][ T7005] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.553183][ T7005] CPU: 1 PID: 7005 Comm: syz.1.641 Not tainted syzkaller #0 [ 224.554377][ T7005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.555991][ T7005] Call trace: [ 224.556538][ T7005] dump_backtrace+0x0/0x458 [ 224.557332][ T7005] show_stack+0x2c/0x3c [ 224.558042][ T7005] __dump_stack+0x30/0x40 [ 224.558734][ T7005] dump_stack_lvl+0xf4/0x15c [ 224.559475][ T7005] dump_stack+0x1c/0x5c [ 224.560125][ T7005] sysfs_create_dir_ns+0x244/0x264 [ 224.560951][ T7005] kobject_add_internal+0x5ac/0xc3c [ 224.561796][ T7005] kobject_init_and_add+0x124/0x190 [ 224.562642][ T7005] gfs2_sys_fs_add+0x200/0x41c [ 224.563419][ T7005] gfs2_fill_super+0xddc/0x1a18 [ 224.564206][ T7005] get_tree_bdev+0x358/0x544 [ 224.564928][ T7005] gfs2_get_tree+0x54/0x1b4 [ 224.565681][ T7005] vfs_get_tree+0x90/0x274 [ 224.566432][ T7005] do_new_mount+0x228/0x810 [ 224.567207][ T7005] path_mount+0x5bc/0x1008 [ 224.567919][ T7005] __arm64_sys_mount+0x514/0x5f0 [ 224.568719][ T7005] invoke_syscall+0x98/0x2b0 [ 224.569440][ T7005] el0_svc_common+0x138/0x258 [ 224.570186][ T7005] do_el0_svc+0x58/0x13c [ 224.570887][ T7005] el0_svc+0x78/0x1d0 [ 224.571531][ T7005] el0t_64_sync_handler+0xcc/0xe4 [ 224.572332][ T7005] el0t_64_sync+0x1a0/0x1a4 [ 224.574679][ T7005] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.576704][ T7005] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.712901][ T7008] loop1: detected capacity change from 0 to 32768 [ 224.775439][ T7008] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.776650][ T7008] CPU: 1 PID: 7008 Comm: syz.1.642 Not tainted syzkaller #0 [ 224.777846][ T7008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.779467][ T7008] Call trace: [ 224.779963][ T7008] dump_backtrace+0x0/0x458 [ 224.780646][ T7008] show_stack+0x2c/0x3c [ 224.781241][ T7008] __dump_stack+0x30/0x40 [ 224.781866][ T7008] dump_stack_lvl+0xf4/0x15c [ 224.782552][ T7008] dump_stack+0x1c/0x5c [ 224.783134][ T7008] sysfs_create_dir_ns+0x244/0x264 [ 224.783970][ T7008] kobject_add_internal+0x5ac/0xc3c [ 224.784899][ T7008] kobject_init_and_add+0x124/0x190 [ 224.785717][ T7008] gfs2_sys_fs_add+0x200/0x41c [ 224.786468][ T7008] gfs2_fill_super+0xddc/0x1a18 [ 224.787259][ T7008] get_tree_bdev+0x358/0x544 [ 224.788052][ T7008] gfs2_get_tree+0x54/0x1b4 [ 224.788746][ T7008] vfs_get_tree+0x90/0x274 [ 224.789454][ T7008] do_new_mount+0x228/0x810 [ 224.790135][ T7008] path_mount+0x5bc/0x1008 [ 224.790854][ T7008] __arm64_sys_mount+0x514/0x5f0 [ 224.791624][ T7008] invoke_syscall+0x98/0x2b0 [ 224.792389][ T7008] el0_svc_common+0x138/0x258 [ 224.793096][ T7008] do_el0_svc+0x58/0x13c [ 224.793791][ T7008] el0_svc+0x78/0x1d0 [ 224.794413][ T7008] el0t_64_sync_handler+0xcc/0xe4 [ 224.795158][ T7008] el0t_64_sync+0x1a0/0x1a4 [ 224.796729][ T7008] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.798598][ T7008] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.057148][ T7011] loop1: detected capacity change from 0 to 32768 [ 225.095217][ T7011] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.096344][ T7011] CPU: 0 PID: 7011 Comm: syz.1.643 Not tainted syzkaller #0 [ 225.097515][ T7011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.099234][ T7011] Call trace: [ 225.099785][ T7011] dump_backtrace+0x0/0x458 [ 225.100527][ T7011] show_stack+0x2c/0x3c [ 225.101227][ T7011] __dump_stack+0x30/0x40 [ 225.101979][ T7011] dump_stack_lvl+0xf4/0x15c [ 225.102680][ T7011] dump_stack+0x1c/0x5c [ 225.103336][ T7011] sysfs_create_dir_ns+0x244/0x264 [ 225.104160][ T7011] kobject_add_internal+0x5ac/0xc3c [ 225.104994][ T7011] kobject_init_and_add+0x124/0x190 [ 225.105807][ T7011] gfs2_sys_fs_add+0x200/0x41c [ 225.106617][ T7011] gfs2_fill_super+0xddc/0x1a18 [ 225.107428][ T7011] get_tree_bdev+0x358/0x544 [ 225.108182][ T7011] gfs2_get_tree+0x54/0x1b4 [ 225.108911][ T7011] vfs_get_tree+0x90/0x274 [ 225.109607][ T7011] do_new_mount+0x228/0x810 [ 225.110341][ T7011] path_mount+0x5bc/0x1008 [ 225.111027][ T7011] __arm64_sys_mount+0x514/0x5f0 [ 225.111854][ T7011] invoke_syscall+0x98/0x2b0 [ 225.112603][ T7011] el0_svc_common+0x138/0x258 [ 225.113319][ T7011] do_el0_svc+0x58/0x13c [ 225.114059][ T7011] el0_svc+0x78/0x1d0 [ 225.114759][ T7011] el0t_64_sync_handler+0xcc/0xe4 [ 225.115570][ T7011] el0t_64_sync+0x1a0/0x1a4 [ 225.116914][ T7011] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.118934][ T7011] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.247632][ T7014] loop1: detected capacity change from 0 to 32768 [ 225.299283][ T7014] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.300422][ T7014] CPU: 1 PID: 7014 Comm: syz.1.644 Not tainted syzkaller #0 [ 225.301492][ T7014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.303111][ T7014] Call trace: [ 225.303654][ T7014] dump_backtrace+0x0/0x458 [ 225.304366][ T7014] show_stack+0x2c/0x3c [ 225.305009][ T7014] __dump_stack+0x30/0x40 [ 225.305742][ T7014] dump_stack_lvl+0xf4/0x15c [ 225.306530][ T7014] dump_stack+0x1c/0x5c [ 225.307184][ T7014] sysfs_create_dir_ns+0x244/0x264 [ 225.307985][ T7014] kobject_add_internal+0x5ac/0xc3c [ 225.308811][ T7014] kobject_init_and_add+0x124/0x190 [ 225.309591][ T7014] gfs2_sys_fs_add+0x200/0x41c [ 225.310302][ T7014] gfs2_fill_super+0xddc/0x1a18 [ 225.311034][ T7014] get_tree_bdev+0x358/0x544 [ 225.311737][ T7014] gfs2_get_tree+0x54/0x1b4 [ 225.312423][ T7014] vfs_get_tree+0x90/0x274 [ 225.313082][ T7014] do_new_mount+0x228/0x810 [ 225.313846][ T7014] path_mount+0x5bc/0x1008 [ 225.314653][ T7014] __arm64_sys_mount+0x514/0x5f0 [ 225.315454][ T7014] invoke_syscall+0x98/0x2b0 [ 225.316195][ T7014] el0_svc_common+0x138/0x258 [ 225.316919][ T7014] do_el0_svc+0x58/0x13c [ 225.317628][ T7014] el0_svc+0x78/0x1d0 [ 225.318188][ T7014] el0t_64_sync_handler+0xcc/0xe4 [ 225.318861][ T7014] el0t_64_sync+0x1a0/0x1a4 [ 225.321287][ T7014] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.323231][ T7014] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.453592][ T7017] loop1: detected capacity change from 0 to 32768 [ 225.460828][ T7017] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.462043][ T7017] CPU: 0 PID: 7017 Comm: syz.1.645 Not tainted syzkaller #0 [ 225.463168][ T7017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.464690][ T7017] Call trace: [ 225.465197][ T7017] dump_backtrace+0x0/0x458 [ 225.465912][ T7017] show_stack+0x2c/0x3c [ 225.466581][ T7017] __dump_stack+0x30/0x40 [ 225.467247][ T7017] dump_stack_lvl+0xf4/0x15c [ 225.468005][ T7017] dump_stack+0x1c/0x5c [ 225.468759][ T7017] sysfs_create_dir_ns+0x244/0x264 [ 225.469683][ T7017] kobject_add_internal+0x5ac/0xc3c [ 225.470548][ T7017] kobject_init_and_add+0x124/0x190 [ 225.471430][ T7017] gfs2_sys_fs_add+0x200/0x41c [ 225.472305][ T7017] gfs2_fill_super+0xddc/0x1a18 [ 225.473116][ T7017] get_tree_bdev+0x358/0x544 [ 225.473888][ T7017] gfs2_get_tree+0x54/0x1b4 [ 225.474652][ T7017] vfs_get_tree+0x90/0x274 [ 225.475381][ T7017] do_new_mount+0x228/0x810 [ 225.476107][ T7017] path_mount+0x5bc/0x1008 [ 225.476822][ T7017] __arm64_sys_mount+0x514/0x5f0 [ 225.477645][ T7017] invoke_syscall+0x98/0x2b0 [ 225.478407][ T7017] el0_svc_common+0x138/0x258 [ 225.479154][ T7017] do_el0_svc+0x58/0x13c [ 225.479804][ T7017] el0_svc+0x78/0x1d0 [ 225.480457][ T7017] el0t_64_sync_handler+0xcc/0xe4 [ 225.481283][ T7017] el0t_64_sync+0x1a0/0x1a4 [ 225.482129][ T7017] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.484344][ T7017] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.623738][ T7020] loop1: detected capacity change from 0 to 32768 [ 225.631387][ T7020] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.632545][ T7020] CPU: 1 PID: 7020 Comm: syz.1.646 Not tainted syzkaller #0 [ 225.633681][ T7020] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.635392][ T7020] Call trace: [ 225.635942][ T7020] dump_backtrace+0x0/0x458 [ 225.636738][ T7020] show_stack+0x2c/0x3c [ 225.637406][ T7020] __dump_stack+0x30/0x40 [ 225.638113][ T7020] dump_stack_lvl+0xf4/0x15c [ 225.638852][ T7020] dump_stack+0x1c/0x5c [ 225.639516][ T7020] sysfs_create_dir_ns+0x244/0x264 [ 225.640337][ T7020] kobject_add_internal+0x5ac/0xc3c [ 225.641214][ T7020] kobject_init_and_add+0x124/0x190 [ 225.642185][ T7020] gfs2_sys_fs_add+0x200/0x41c [ 225.643038][ T7020] gfs2_fill_super+0xddc/0x1a18 [ 225.643867][ T7020] get_tree_bdev+0x358/0x544 [ 225.644652][ T7020] gfs2_get_tree+0x54/0x1b4 [ 225.645415][ T7020] vfs_get_tree+0x90/0x274 [ 225.646140][ T7020] do_new_mount+0x228/0x810 [ 225.646921][ T7020] path_mount+0x5bc/0x1008 [ 225.647640][ T7020] __arm64_sys_mount+0x514/0x5f0 [ 225.648463][ T7020] invoke_syscall+0x98/0x2b0 [ 225.649201][ T7020] el0_svc_common+0x138/0x258 [ 225.649944][ T7020] do_el0_svc+0x58/0x13c [ 225.650641][ T7020] el0_svc+0x78/0x1d0 [ 225.651340][ T7020] el0t_64_sync_handler+0xcc/0xe4 [ 225.652220][ T7020] el0t_64_sync+0x1a0/0x1a4 [ 225.654050][ T7020] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.656115][ T7020] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.791538][ T7023] loop1: detected capacity change from 0 to 32768 [ 225.795754][ T7023] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.796919][ T7023] CPU: 1 PID: 7023 Comm: syz.1.647 Not tainted syzkaller #0 [ 225.798079][ T7023] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.799706][ T7023] Call trace: [ 225.800194][ T7023] dump_backtrace+0x0/0x458 [ 225.800861][ T7023] show_stack+0x2c/0x3c [ 225.801573][ T7023] __dump_stack+0x30/0x40 [ 225.802279][ T7023] dump_stack_lvl+0xf4/0x15c [ 225.803088][ T7023] dump_stack+0x1c/0x5c [ 225.803751][ T7023] sysfs_create_dir_ns+0x244/0x264 [ 225.804561][ T7023] kobject_add_internal+0x5ac/0xc3c [ 225.805440][ T7023] kobject_init_and_add+0x124/0x190 [ 225.806338][ T7023] gfs2_sys_fs_add+0x200/0x41c [ 225.807080][ T7023] gfs2_fill_super+0xddc/0x1a18 [ 225.807900][ T7023] get_tree_bdev+0x358/0x544 [ 225.808643][ T7023] gfs2_get_tree+0x54/0x1b4 [ 225.809312][ T7023] vfs_get_tree+0x90/0x274 [ 225.810079][ T7023] do_new_mount+0x228/0x810 [ 225.810796][ T7023] path_mount+0x5bc/0x1008 [ 225.811451][ T7023] __arm64_sys_mount+0x514/0x5f0 [ 225.812245][ T7023] invoke_syscall+0x98/0x2b0 [ 225.812992][ T7023] el0_svc_common+0x138/0x258 [ 225.813740][ T7023] do_el0_svc+0x58/0x13c [ 225.814468][ T7023] el0_svc+0x78/0x1d0 [ 225.815058][ T7023] el0t_64_sync_handler+0xcc/0xe4 [ 225.815848][ T7023] el0t_64_sync+0x1a0/0x1a4 [ 225.819282][ T7023] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.821277][ T7023] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.955543][ T7026] loop1: detected capacity change from 0 to 32768 [ 226.000922][ T7026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.002013][ T7026] CPU: 0 PID: 7026 Comm: syz.1.648 Not tainted syzkaller #0 [ 226.003163][ T7026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.004848][ T7026] Call trace: [ 226.005386][ T7026] dump_backtrace+0x0/0x458 [ 226.006150][ T7026] show_stack+0x2c/0x3c [ 226.006850][ T7026] __dump_stack+0x30/0x40 [ 226.007529][ T7026] dump_stack_lvl+0xf4/0x15c [ 226.008245][ T7026] dump_stack+0x1c/0x5c [ 226.008906][ T7026] sysfs_create_dir_ns+0x244/0x264 [ 226.009735][ T7026] kobject_add_internal+0x5ac/0xc3c [ 226.010592][ T7026] kobject_init_and_add+0x124/0x190 [ 226.011461][ T7026] gfs2_sys_fs_add+0x200/0x41c [ 226.012227][ T7026] gfs2_fill_super+0xddc/0x1a18 [ 226.013000][ T7026] get_tree_bdev+0x358/0x544 [ 226.013814][ T7026] gfs2_get_tree+0x54/0x1b4 [ 226.014574][ T7026] vfs_get_tree+0x90/0x274 [ 226.015339][ T7026] do_new_mount+0x228/0x810 [ 226.016088][ T7026] path_mount+0x5bc/0x1008 [ 226.016795][ T7026] __arm64_sys_mount+0x514/0x5f0 [ 226.017616][ T7026] invoke_syscall+0x98/0x2b0 [ 226.018365][ T7026] el0_svc_common+0x138/0x258 [ 226.019078][ T7026] do_el0_svc+0x58/0x13c [ 226.019773][ T7026] el0_svc+0x78/0x1d0 [ 226.020451][ T7026] el0t_64_sync_handler+0xcc/0xe4 [ 226.021305][ T7026] el0t_64_sync+0x1a0/0x1a4 [ 226.022973][ T7026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.026125][ T7026] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.114076][ T4170] Bluetooth: hci2: command 0x0419 tx timeout [ 226.160012][ T7029] loop1: detected capacity change from 0 to 32768 [ 226.205097][ T7029] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.206181][ T7029] CPU: 0 PID: 7029 Comm: syz.1.649 Not tainted syzkaller #0 [ 226.207443][ T7029] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.209110][ T7029] Call trace: [ 226.209637][ T7029] dump_backtrace+0x0/0x458 [ 226.210412][ T7029] show_stack+0x2c/0x3c [ 226.211079][ T7029] __dump_stack+0x30/0x40 [ 226.211781][ T7029] dump_stack_lvl+0xf4/0x15c [ 226.212440][ T7029] dump_stack+0x1c/0x5c [ 226.213083][ T7029] sysfs_create_dir_ns+0x244/0x264 [ 226.213917][ T7029] kobject_add_internal+0x5ac/0xc3c [ 226.214706][ T7029] kobject_init_and_add+0x124/0x190 [ 226.215576][ T7029] gfs2_sys_fs_add+0x200/0x41c [ 226.216366][ T7029] gfs2_fill_super+0xddc/0x1a18 [ 226.217175][ T7029] get_tree_bdev+0x358/0x544 [ 226.218002][ T7029] gfs2_get_tree+0x54/0x1b4 [ 226.218704][ T7029] vfs_get_tree+0x90/0x274 [ 226.219368][ T7029] do_new_mount+0x228/0x810 [ 226.220101][ T7029] path_mount+0x5bc/0x1008 [ 226.220796][ T7029] __arm64_sys_mount+0x514/0x5f0 [ 226.221600][ T7029] invoke_syscall+0x98/0x2b0 [ 226.222343][ T7029] el0_svc_common+0x138/0x258 [ 226.223092][ T7029] do_el0_svc+0x58/0x13c [ 226.223763][ T7029] el0_svc+0x78/0x1d0 [ 226.224402][ T7029] el0t_64_sync_handler+0xcc/0xe4 [ 226.225253][ T7029] el0t_64_sync+0x1a0/0x1a4 [ 226.227058][ T7029] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.229028][ T7029] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.361713][ T7032] loop1: detected capacity change from 0 to 32768 [ 226.368838][ T7032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.370169][ T7032] CPU: 0 PID: 7032 Comm: syz.1.650 Not tainted syzkaller #0 [ 226.371327][ T7032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.372887][ T7032] Call trace: [ 226.373414][ T7032] dump_backtrace+0x0/0x458 [ 226.374098][ T7032] show_stack+0x2c/0x3c [ 226.374792][ T7032] __dump_stack+0x30/0x40 [ 226.375508][ T7032] dump_stack_lvl+0xf4/0x15c [ 226.376184][ T7032] dump_stack+0x1c/0x5c [ 226.376850][ T7032] sysfs_create_dir_ns+0x244/0x264 [ 226.377677][ T7032] kobject_add_internal+0x5ac/0xc3c [ 226.378532][ T7032] kobject_init_and_add+0x124/0x190 [ 226.379377][ T7032] gfs2_sys_fs_add+0x200/0x41c [ 226.380139][ T7032] gfs2_fill_super+0xddc/0x1a18 [ 226.380909][ T7032] get_tree_bdev+0x358/0x544 [ 226.381596][ T7032] gfs2_get_tree+0x54/0x1b4 [ 226.382289][ T7032] vfs_get_tree+0x90/0x274 [ 226.382983][ T7032] do_new_mount+0x228/0x810 [ 226.383720][ T7032] path_mount+0x5bc/0x1008 [ 226.384493][ T7032] __arm64_sys_mount+0x514/0x5f0 [ 226.385363][ T7032] invoke_syscall+0x98/0x2b0 [ 226.386114][ T7032] el0_svc_common+0x138/0x258 [ 226.386937][ T7032] do_el0_svc+0x58/0x13c [ 226.387581][ T7032] el0_svc+0x78/0x1d0 [ 226.388275][ T7032] el0t_64_sync_handler+0xcc/0xe4 [ 226.389181][ T7032] el0t_64_sync+0x1a0/0x1a4 [ 226.391652][ T7032] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.393601][ T7032] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.561039][ T7035] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.562391][ T7035] CPU: 0 PID: 7035 Comm: syz.1.651 Not tainted syzkaller #0 [ 226.563433][ T7035] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.564960][ T7035] Call trace: [ 226.565491][ T7035] dump_backtrace+0x0/0x458 [ 226.566223][ T7035] show_stack+0x2c/0x3c [ 226.566879][ T7035] __dump_stack+0x30/0x40 [ 226.567545][ T7035] dump_stack_lvl+0xf4/0x15c [ 226.568255][ T7035] dump_stack+0x1c/0x5c [ 226.568830][ T7035] sysfs_create_dir_ns+0x244/0x264 [ 226.569611][ T7035] kobject_add_internal+0x5ac/0xc3c [ 226.570485][ T7035] kobject_init_and_add+0x124/0x190 [ 226.571343][ T7035] gfs2_sys_fs_add+0x200/0x41c [ 226.572115][ T7035] gfs2_fill_super+0xddc/0x1a18 [ 226.572855][ T7035] get_tree_bdev+0x358/0x544 [ 226.573594][ T7035] gfs2_get_tree+0x54/0x1b4 [ 226.574310][ T7035] vfs_get_tree+0x90/0x274 [ 226.575001][ T7035] do_new_mount+0x228/0x810 [ 226.575692][ T7035] path_mount+0x5bc/0x1008 [ 226.576365][ T7035] __arm64_sys_mount+0x514/0x5f0 [ 226.577139][ T7035] invoke_syscall+0x98/0x2b0 [ 226.577811][ T7035] el0_svc_common+0x138/0x258 [ 226.578530][ T7035] do_el0_svc+0x58/0x13c [ 226.579153][ T7035] el0_svc+0x78/0x1d0 [ 226.579820][ T7035] el0t_64_sync_handler+0xcc/0xe4 [ 226.580581][ T7035] el0t_64_sync+0x1a0/0x1a4 [ 226.594231][ T7035] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.596379][ T7035] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.788751][ T7038] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.789920][ T7038] CPU: 0 PID: 7038 Comm: syz.1.652 Not tainted syzkaller #0 [ 226.791082][ T7038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.792732][ T7038] Call trace: [ 226.793265][ T7038] dump_backtrace+0x0/0x458 [ 226.794027][ T7038] show_stack+0x2c/0x3c [ 226.794723][ T7038] __dump_stack+0x30/0x40 [ 226.795447][ T7038] dump_stack_lvl+0xf4/0x15c [ 226.796176][ T7038] dump_stack+0x1c/0x5c [ 226.796876][ T7038] sysfs_create_dir_ns+0x244/0x264 [ 226.797661][ T7038] kobject_add_internal+0x5ac/0xc3c [ 226.798469][ T7038] kobject_init_and_add+0x124/0x190 [ 226.799300][ T7038] gfs2_sys_fs_add+0x200/0x41c [ 226.800087][ T7038] gfs2_fill_super+0xddc/0x1a18 [ 226.800900][ T7038] get_tree_bdev+0x358/0x544 [ 226.801678][ T7038] gfs2_get_tree+0x54/0x1b4 [ 226.802381][ T7038] vfs_get_tree+0x90/0x274 [ 226.803035][ T7038] do_new_mount+0x228/0x810 [ 226.803756][ T7038] path_mount+0x5bc/0x1008 [ 226.804456][ T7038] __arm64_sys_mount+0x514/0x5f0 [ 226.805328][ T7038] invoke_syscall+0x98/0x2b0 [ 226.806066][ T7038] el0_svc_common+0x138/0x258 [ 226.806859][ T7038] do_el0_svc+0x58/0x13c [ 226.807522][ T7038] el0_svc+0x78/0x1d0 [ 226.808148][ T7038] el0t_64_sync_handler+0xcc/0xe4 [ 226.808998][ T7038] el0t_64_sync+0x1a0/0x1a4 [ 226.809994][ T7038] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.811808][ T7038] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.978554][ T7041] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.979713][ T7041] CPU: 0 PID: 7041 Comm: syz.1.653 Not tainted syzkaller #0 [ 226.980945][ T7041] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.982597][ T7041] Call trace: [ 226.983126][ T7041] dump_backtrace+0x0/0x458 [ 226.983917][ T7041] show_stack+0x2c/0x3c [ 226.984574][ T7041] __dump_stack+0x30/0x40 [ 226.985292][ T7041] dump_stack_lvl+0xf4/0x15c [ 226.986013][ T7041] dump_stack+0x1c/0x5c [ 226.986657][ T7041] sysfs_create_dir_ns+0x244/0x264 [ 226.987437][ T7041] kobject_add_internal+0x5ac/0xc3c [ 226.988280][ T7041] kobject_init_and_add+0x124/0x190 [ 226.989128][ T7041] gfs2_sys_fs_add+0x200/0x41c [ 226.989865][ T7041] gfs2_fill_super+0xddc/0x1a18 [ 226.990606][ T7041] get_tree_bdev+0x358/0x544 [ 226.991330][ T7041] gfs2_get_tree+0x54/0x1b4 [ 226.992014][ T7041] vfs_get_tree+0x90/0x274 [ 226.992707][ T7041] do_new_mount+0x228/0x810 [ 226.993369][ T7041] path_mount+0x5bc/0x1008 [ 226.994088][ T7041] __arm64_sys_mount+0x514/0x5f0 [ 226.994889][ T7041] invoke_syscall+0x98/0x2b0 [ 226.995594][ T7041] el0_svc_common+0x138/0x258 [ 226.996301][ T7041] do_el0_svc+0x58/0x13c [ 226.997008][ T7041] el0_svc+0x78/0x1d0 [ 226.997648][ T7041] el0t_64_sync_handler+0xcc/0xe4 [ 226.998418][ T7041] el0t_64_sync+0x1a0/0x1a4 [ 227.000791][ T7041] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.002815][ T7041] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.142115][ T7044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.143233][ T7044] CPU: 0 PID: 7044 Comm: syz.1.654 Not tainted syzkaller #0 [ 227.144329][ T7044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.145793][ T7044] Call trace: [ 227.146265][ T7044] dump_backtrace+0x0/0x458 [ 227.146928][ T7044] show_stack+0x2c/0x3c [ 227.147522][ T7044] __dump_stack+0x30/0x40 [ 227.148147][ T7044] dump_stack_lvl+0xf4/0x15c [ 227.148912][ T7044] dump_stack+0x1c/0x5c [ 227.149556][ T7044] sysfs_create_dir_ns+0x244/0x264 [ 227.150415][ T7044] kobject_add_internal+0x5ac/0xc3c [ 227.151270][ T7044] kobject_init_and_add+0x124/0x190 [ 227.152081][ T7044] gfs2_sys_fs_add+0x200/0x41c [ 227.152841][ T7044] gfs2_fill_super+0xddc/0x1a18 [ 227.153655][ T7044] get_tree_bdev+0x358/0x544 [ 227.154430][ T7044] gfs2_get_tree+0x54/0x1b4 [ 227.155122][ T7044] vfs_get_tree+0x90/0x274 [ 227.155938][ T7044] do_new_mount+0x228/0x810 [ 227.156655][ T7044] path_mount+0x5bc/0x1008 [ 227.157376][ T7044] __arm64_sys_mount+0x514/0x5f0 [ 227.158212][ T7044] invoke_syscall+0x98/0x2b0 [ 227.158956][ T7044] el0_svc_common+0x138/0x258 [ 227.159757][ T7044] do_el0_svc+0x58/0x13c [ 227.160469][ T7044] el0_svc+0x78/0x1d0 [ 227.161152][ T7044] el0t_64_sync_handler+0xcc/0xe4 [ 227.161973][ T7044] el0t_64_sync+0x1a0/0x1a4 [ 227.165487][ T7044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.167448][ T7044] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.303066][ T7047] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.304419][ T7047] CPU: 0 PID: 7047 Comm: syz.1.655 Not tainted syzkaller #0 [ 227.305625][ T7047] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.307223][ T7047] Call trace: [ 227.307742][ T7047] dump_backtrace+0x0/0x458 [ 227.308445][ T7047] show_stack+0x2c/0x3c [ 227.309108][ T7047] __dump_stack+0x30/0x40 [ 227.309769][ T7047] dump_stack_lvl+0xf4/0x15c [ 227.310484][ T7047] dump_stack+0x1c/0x5c [ 227.311199][ T7047] sysfs_create_dir_ns+0x244/0x264 [ 227.312018][ T7047] kobject_add_internal+0x5ac/0xc3c [ 227.312852][ T7047] kobject_init_and_add+0x124/0x190 [ 227.313693][ T7047] gfs2_sys_fs_add+0x200/0x41c [ 227.314433][ T7047] gfs2_fill_super+0xddc/0x1a18 [ 227.315183][ T7047] get_tree_bdev+0x358/0x544 [ 227.315981][ T7047] gfs2_get_tree+0x54/0x1b4 [ 227.316722][ T7047] vfs_get_tree+0x90/0x274 [ 227.317435][ T7047] do_new_mount+0x228/0x810 [ 227.318134][ T7047] path_mount+0x5bc/0x1008 [ 227.318817][ T7047] __arm64_sys_mount+0x514/0x5f0 [ 227.319562][ T7047] invoke_syscall+0x98/0x2b0 [ 227.320278][ T7047] el0_svc_common+0x138/0x258 [ 227.321018][ T7047] do_el0_svc+0x58/0x13c [ 227.321699][ T7047] el0_svc+0x78/0x1d0 [ 227.322322][ T7047] el0t_64_sync_handler+0xcc/0xe4 [ 227.323104][ T7047] el0t_64_sync+0x1a0/0x1a4 [ 227.325918][ T7047] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.327851][ T7047] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.463491][ T7050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.464838][ T7050] CPU: 1 PID: 7050 Comm: syz.1.656 Not tainted syzkaller #0 [ 227.465928][ T7050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.467643][ T7050] Call trace: [ 227.468219][ T7050] dump_backtrace+0x0/0x458 [ 227.468982][ T7050] show_stack+0x2c/0x3c [ 227.469672][ T7050] __dump_stack+0x30/0x40 [ 227.470449][ T7050] dump_stack_lvl+0xf4/0x15c [ 227.471180][ T7050] dump_stack+0x1c/0x5c [ 227.471858][ T7050] sysfs_create_dir_ns+0x244/0x264 [ 227.472742][ T7050] kobject_add_internal+0x5ac/0xc3c [ 227.473619][ T7050] kobject_init_and_add+0x124/0x190 [ 227.474497][ T7050] gfs2_sys_fs_add+0x200/0x41c [ 227.475259][ T7050] gfs2_fill_super+0xddc/0x1a18 [ 227.476049][ T7050] get_tree_bdev+0x358/0x544 [ 227.476755][ T7050] gfs2_get_tree+0x54/0x1b4 [ 227.477501][ T7050] vfs_get_tree+0x90/0x274 [ 227.478160][ T7050] do_new_mount+0x228/0x810 [ 227.478933][ T7050] path_mount+0x5bc/0x1008 [ 227.479653][ T7050] __arm64_sys_mount+0x514/0x5f0 [ 227.480476][ T7050] invoke_syscall+0x98/0x2b0 [ 227.481181][ T7050] el0_svc_common+0x138/0x258 [ 227.482016][ T7050] do_el0_svc+0x58/0x13c [ 227.482700][ T7050] el0_svc+0x78/0x1d0 [ 227.483403][ T7050] el0t_64_sync_handler+0xcc/0xe4 [ 227.484215][ T7050] el0t_64_sync+0x1a0/0x1a4 [ 227.486336][ T7050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.488360][ T7050] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.678775][ T7053] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.680064][ T7053] CPU: 1 PID: 7053 Comm: syz.1.657 Not tainted syzkaller #0 [ 227.681242][ T7053] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.682901][ T7053] Call trace: [ 227.683436][ T7053] dump_backtrace+0x0/0x458 [ 227.684149][ T7053] show_stack+0x2c/0x3c [ 227.684822][ T7053] __dump_stack+0x30/0x40 [ 227.685553][ T7053] dump_stack_lvl+0xf4/0x15c [ 227.686301][ T7053] dump_stack+0x1c/0x5c [ 227.687030][ T7053] sysfs_create_dir_ns+0x244/0x264 [ 227.687887][ T7053] kobject_add_internal+0x5ac/0xc3c [ 227.688759][ T7053] kobject_init_and_add+0x124/0x190 [ 227.689619][ T7053] gfs2_sys_fs_add+0x200/0x41c [ 227.690456][ T7053] gfs2_fill_super+0xddc/0x1a18 [ 227.691233][ T7053] get_tree_bdev+0x358/0x544 [ 227.691957][ T7053] gfs2_get_tree+0x54/0x1b4 [ 227.692675][ T7053] vfs_get_tree+0x90/0x274 [ 227.693425][ T7053] do_new_mount+0x228/0x810 [ 227.694161][ T7053] path_mount+0x5bc/0x1008 [ 227.694861][ T7053] __arm64_sys_mount+0x514/0x5f0 [ 227.695689][ T7053] invoke_syscall+0x98/0x2b0 [ 227.696471][ T7053] el0_svc_common+0x138/0x258 [ 227.697234][ T7053] do_el0_svc+0x58/0x13c [ 227.697930][ T7053] el0_svc+0x78/0x1d0 [ 227.698560][ T7053] el0t_64_sync_handler+0xcc/0xe4 [ 227.699340][ T7053] el0t_64_sync+0x1a0/0x1a4 [ 227.700307][ T7053] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.702332][ T7053] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.840706][ T7056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.841857][ T7056] CPU: 0 PID: 7056 Comm: syz.1.658 Not tainted syzkaller #0 [ 227.842951][ T7056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.844588][ T7056] Call trace: [ 227.845094][ T7056] dump_backtrace+0x0/0x458 [ 227.845774][ T7056] show_stack+0x2c/0x3c [ 227.846479][ T7056] __dump_stack+0x30/0x40 [ 227.847131][ T7056] dump_stack_lvl+0xf4/0x15c [ 227.847835][ T7056] dump_stack+0x1c/0x5c [ 227.848509][ T7056] sysfs_create_dir_ns+0x244/0x264 [ 227.849280][ T7056] kobject_add_internal+0x5ac/0xc3c [ 227.850096][ T7056] kobject_init_and_add+0x124/0x190 [ 227.850833][ T7056] gfs2_sys_fs_add+0x200/0x41c [ 227.851487][ T7056] gfs2_fill_super+0xddc/0x1a18 [ 227.852191][ T7056] get_tree_bdev+0x358/0x544 [ 227.852848][ T7056] gfs2_get_tree+0x54/0x1b4 [ 227.853461][ T7056] vfs_get_tree+0x90/0x274 [ 227.854114][ T7056] do_new_mount+0x228/0x810 [ 227.854889][ T7056] path_mount+0x5bc/0x1008 [ 227.855619][ T7056] __arm64_sys_mount+0x514/0x5f0 [ 227.856433][ T7056] invoke_syscall+0x98/0x2b0 [ 227.857159][ T7056] el0_svc_common+0x138/0x258 [ 227.857900][ T7056] do_el0_svc+0x58/0x13c [ 227.858608][ T7056] el0_svc+0x78/0x1d0 [ 227.859256][ T7056] el0t_64_sync_handler+0xcc/0xe4 [ 227.860140][ T7056] el0t_64_sync+0x1a0/0x1a4 [ 227.862291][ T7056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.864356][ T7056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.025122][ T7059] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.026290][ T7059] CPU: 0 PID: 7059 Comm: syz.1.659 Not tainted syzkaller #0 [ 228.027485][ T7059] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.029047][ T7059] Call trace: [ 228.029539][ T7059] dump_backtrace+0x0/0x458 [ 228.030277][ T7059] show_stack+0x2c/0x3c [ 228.030973][ T7059] __dump_stack+0x30/0x40 [ 228.031719][ T7059] dump_stack_lvl+0xf4/0x15c [ 228.032526][ T7059] dump_stack+0x1c/0x5c [ 228.033213][ T7059] sysfs_create_dir_ns+0x244/0x264 [ 228.034047][ T7059] kobject_add_internal+0x5ac/0xc3c [ 228.034917][ T7059] kobject_init_and_add+0x124/0x190 [ 228.035782][ T7059] gfs2_sys_fs_add+0x200/0x41c [ 228.036555][ T7059] gfs2_fill_super+0xddc/0x1a18 [ 228.037331][ T7059] get_tree_bdev+0x358/0x544 [ 228.038082][ T7059] gfs2_get_tree+0x54/0x1b4 [ 228.038802][ T7059] vfs_get_tree+0x90/0x274 [ 228.039506][ T7059] do_new_mount+0x228/0x810 [ 228.040212][ T7059] path_mount+0x5bc/0x1008 [ 228.040954][ T7059] __arm64_sys_mount+0x514/0x5f0 [ 228.041823][ T7059] invoke_syscall+0x98/0x2b0 [ 228.042562][ T7059] el0_svc_common+0x138/0x258 [ 228.043299][ T7059] do_el0_svc+0x58/0x13c [ 228.044044][ T7059] el0_svc+0x78/0x1d0 [ 228.044745][ T7059] el0t_64_sync_handler+0xcc/0xe4 [ 228.045619][ T7059] el0t_64_sync+0x1a0/0x1a4 [ 228.047787][ T7059] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.049784][ T7059] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.265290][ T7062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.268363][ T7062] CPU: 1 PID: 7062 Comm: syz.1.660 Not tainted syzkaller #0 [ 228.269415][ T7062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.271056][ T7062] Call trace: [ 228.271593][ T7062] dump_backtrace+0x0/0x458 [ 228.272340][ T7062] show_stack+0x2c/0x3c [ 228.273026][ T7062] __dump_stack+0x30/0x40 [ 228.273728][ T7062] dump_stack_lvl+0xf4/0x15c [ 228.274439][ T7062] dump_stack+0x1c/0x5c [ 228.275157][ T7062] sysfs_create_dir_ns+0x244/0x264 [ 228.276078][ T7062] kobject_add_internal+0x5ac/0xc3c [ 228.276867][ T7062] kobject_init_and_add+0x124/0x190 [ 228.277665][ T7062] gfs2_sys_fs_add+0x200/0x41c [ 228.278379][ T7062] gfs2_fill_super+0xddc/0x1a18 [ 228.279128][ T7062] get_tree_bdev+0x358/0x544 [ 228.279871][ T7062] gfs2_get_tree+0x54/0x1b4 [ 228.280668][ T7062] vfs_get_tree+0x90/0x274 [ 228.281481][ T7062] do_new_mount+0x228/0x810 [ 228.282227][ T7062] path_mount+0x5bc/0x1008 [ 228.282968][ T7062] __arm64_sys_mount+0x514/0x5f0 [ 228.283800][ T7062] invoke_syscall+0x98/0x2b0 [ 228.284467][ T7062] el0_svc_common+0x138/0x258 [ 228.285145][ T7062] do_el0_svc+0x58/0x13c [ 228.285767][ T7062] el0_svc+0x78/0x1d0 [ 228.286366][ T7062] el0t_64_sync_handler+0xcc/0xe4 [ 228.287058][ T7062] el0t_64_sync+0x1a0/0x1a4 [ 228.288152][ T7062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.290086][ T7062] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.427586][ T7065] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.428923][ T7065] CPU: 0 PID: 7065 Comm: syz.1.661 Not tainted syzkaller #0 [ 228.430052][ T7065] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.431654][ T7065] Call trace: [ 228.432111][ T7065] dump_backtrace+0x0/0x458 [ 228.432796][ T7065] show_stack+0x2c/0x3c [ 228.433505][ T7065] __dump_stack+0x30/0x40 [ 228.434245][ T7065] dump_stack_lvl+0xf4/0x15c [ 228.434986][ T7065] dump_stack+0x1c/0x5c [ 228.435670][ T7065] sysfs_create_dir_ns+0x244/0x264 [ 228.436486][ T7065] kobject_add_internal+0x5ac/0xc3c [ 228.437302][ T7065] kobject_init_and_add+0x124/0x190 [ 228.438196][ T7065] gfs2_sys_fs_add+0x200/0x41c [ 228.439031][ T7065] gfs2_fill_super+0xddc/0x1a18 [ 228.439855][ T7065] get_tree_bdev+0x358/0x544 [ 228.440633][ T7065] gfs2_get_tree+0x54/0x1b4 [ 228.441408][ T7065] vfs_get_tree+0x90/0x274 [ 228.442156][ T7065] do_new_mount+0x228/0x810 [ 228.442943][ T7065] path_mount+0x5bc/0x1008 [ 228.443721][ T7065] __arm64_sys_mount+0x514/0x5f0 [ 228.444567][ T7065] invoke_syscall+0x98/0x2b0 [ 228.445291][ T7065] el0_svc_common+0x138/0x258 [ 228.446104][ T7065] do_el0_svc+0x58/0x13c [ 228.446851][ T7065] el0_svc+0x78/0x1d0 [ 228.447429][ T7065] el0t_64_sync_handler+0xcc/0xe4 [ 228.448227][ T7065] el0t_64_sync+0x1a0/0x1a4 [ 228.451456][ T7065] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.453418][ T7065] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.665412][ T7068] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.666786][ T7068] CPU: 1 PID: 7068 Comm: syz.1.662 Not tainted syzkaller #0 [ 228.667847][ T7068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.669533][ T7068] Call trace: [ 228.670075][ T7068] dump_backtrace+0x0/0x458 [ 228.670824][ T7068] show_stack+0x2c/0x3c [ 228.671492][ T7068] __dump_stack+0x30/0x40 [ 228.672238][ T7068] dump_stack_lvl+0xf4/0x15c [ 228.673054][ T7068] dump_stack+0x1c/0x5c [ 228.673758][ T7068] sysfs_create_dir_ns+0x244/0x264 [ 228.674655][ T7068] kobject_add_internal+0x5ac/0xc3c [ 228.675587][ T7068] kobject_init_and_add+0x124/0x190 [ 228.676472][ T7068] gfs2_sys_fs_add+0x200/0x41c [ 228.677246][ T7068] gfs2_fill_super+0xddc/0x1a18 [ 228.678046][ T7068] get_tree_bdev+0x358/0x544 [ 228.678794][ T7068] gfs2_get_tree+0x54/0x1b4 [ 228.679499][ T7068] vfs_get_tree+0x90/0x274 [ 228.680188][ T7068] do_new_mount+0x228/0x810 [ 228.680975][ T7068] path_mount+0x5bc/0x1008 [ 228.681715][ T7068] __arm64_sys_mount+0x514/0x5f0 [ 228.682526][ T7068] invoke_syscall+0x98/0x2b0 [ 228.683245][ T7068] el0_svc_common+0x138/0x258 [ 228.683997][ T7068] do_el0_svc+0x58/0x13c [ 228.684611][ T7068] el0_svc+0x78/0x1d0 [ 228.685195][ T7068] el0t_64_sync_handler+0xcc/0xe4 [ 228.686001][ T7068] el0t_64_sync+0x1a0/0x1a4 [ 228.687280][ T7068] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.689202][ T7068] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.864511][ T7071] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.865695][ T7071] CPU: 1 PID: 7071 Comm: syz.1.663 Not tainted syzkaller #0 [ 228.866773][ T7071] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.868311][ T7071] Call trace: [ 228.868748][ T7071] dump_backtrace+0x0/0x458 [ 228.869418][ T7071] show_stack+0x2c/0x3c [ 228.870037][ T7071] __dump_stack+0x30/0x40 [ 228.870684][ T7071] dump_stack_lvl+0xf4/0x15c [ 228.871376][ T7071] dump_stack+0x1c/0x5c [ 228.872010][ T7071] sysfs_create_dir_ns+0x244/0x264 [ 228.872871][ T7071] kobject_add_internal+0x5ac/0xc3c [ 228.873666][ T7071] kobject_init_and_add+0x124/0x190 [ 228.874568][ T7071] gfs2_sys_fs_add+0x200/0x41c [ 228.875342][ T7071] gfs2_fill_super+0xddc/0x1a18 [ 228.876135][ T7071] get_tree_bdev+0x358/0x544 [ 228.876835][ T7071] gfs2_get_tree+0x54/0x1b4 [ 228.877621][ T7071] vfs_get_tree+0x90/0x274 [ 228.878364][ T7071] do_new_mount+0x228/0x810 [ 228.879030][ T7071] path_mount+0x5bc/0x1008 [ 228.879745][ T7071] __arm64_sys_mount+0x514/0x5f0 [ 228.880570][ T7071] invoke_syscall+0x98/0x2b0 [ 228.881355][ T7071] el0_svc_common+0x138/0x258 [ 228.882121][ T7071] do_el0_svc+0x58/0x13c [ 228.882884][ T7071] el0_svc+0x78/0x1d0 [ 228.883570][ T7071] el0t_64_sync_handler+0xcc/0xe4 [ 228.884392][ T7071] el0t_64_sync+0x1a0/0x1a4 [ 228.886511][ T7071] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.888860][ T7071] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.027492][ T7074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.028785][ T7074] CPU: 0 PID: 7074 Comm: syz.1.664 Not tainted syzkaller #0 [ 229.030032][ T7074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.031663][ T7074] Call trace: [ 229.032184][ T7074] dump_backtrace+0x0/0x458 [ 229.032843][ T7074] show_stack+0x2c/0x3c [ 229.033501][ T7074] __dump_stack+0x30/0x40 [ 229.034170][ T7074] dump_stack_lvl+0xf4/0x15c [ 229.034891][ T7074] dump_stack+0x1c/0x5c [ 229.035560][ T7074] sysfs_create_dir_ns+0x244/0x264 [ 229.036360][ T7074] kobject_add_internal+0x5ac/0xc3c [ 229.037216][ T7074] kobject_init_and_add+0x124/0x190 [ 229.038001][ T7074] gfs2_sys_fs_add+0x200/0x41c [ 229.038735][ T7074] gfs2_fill_super+0xddc/0x1a18 [ 229.039568][ T7074] get_tree_bdev+0x358/0x544 [ 229.040308][ T7074] gfs2_get_tree+0x54/0x1b4 [ 229.041073][ T7074] vfs_get_tree+0x90/0x274 [ 229.041822][ T7074] do_new_mount+0x228/0x810 [ 229.042597][ T7074] path_mount+0x5bc/0x1008 [ 229.043320][ T7074] __arm64_sys_mount+0x514/0x5f0 [ 229.044119][ T7074] invoke_syscall+0x98/0x2b0 [ 229.044879][ T7074] el0_svc_common+0x138/0x258 [ 229.045664][ T7074] do_el0_svc+0x58/0x13c [ 229.046357][ T7074] el0_svc+0x78/0x1d0 [ 229.046986][ T7074] el0t_64_sync_handler+0xcc/0xe4 [ 229.047782][ T7074] el0t_64_sync+0x1a0/0x1a4 [ 229.050896][ T7074] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.053054][ T7074] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.215190][ T7077] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.216274][ T7077] CPU: 0 PID: 7077 Comm: syz.1.665 Not tainted syzkaller #0 [ 229.217454][ T7077] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.219097][ T7077] Call trace: [ 229.219619][ T7077] dump_backtrace+0x0/0x458 [ 229.220380][ T7077] show_stack+0x2c/0x3c [ 229.221128][ T7077] __dump_stack+0x30/0x40 [ 229.221823][ T7077] dump_stack_lvl+0xf4/0x15c [ 229.222604][ T7077] dump_stack+0x1c/0x5c [ 229.223299][ T7077] sysfs_create_dir_ns+0x244/0x264 [ 229.224110][ T7077] kobject_add_internal+0x5ac/0xc3c [ 229.224998][ T7077] kobject_init_and_add+0x124/0x190 [ 229.225899][ T7077] gfs2_sys_fs_add+0x200/0x41c [ 229.226757][ T7077] gfs2_fill_super+0xddc/0x1a18 [ 229.227623][ T7077] get_tree_bdev+0x358/0x544 [ 229.228376][ T7077] gfs2_get_tree+0x54/0x1b4 [ 229.229091][ T7077] vfs_get_tree+0x90/0x274 [ 229.229805][ T7077] do_new_mount+0x228/0x810 [ 229.230520][ T7077] path_mount+0x5bc/0x1008 [ 229.231226][ T7077] __arm64_sys_mount+0x514/0x5f0 [ 229.232029][ T7077] invoke_syscall+0x98/0x2b0 [ 229.232740][ T7077] el0_svc_common+0x138/0x258 [ 229.233591][ T7077] do_el0_svc+0x58/0x13c [ 229.234310][ T7077] el0_svc+0x78/0x1d0 [ 229.234990][ T7077] el0t_64_sync_handler+0xcc/0xe4 [ 229.235858][ T7077] el0t_64_sync+0x1a0/0x1a4 [ 229.238132][ T7077] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.240236][ T7077] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.469117][ T7080] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.470293][ T7080] CPU: 0 PID: 7080 Comm: syz.1.666 Not tainted syzkaller #0 [ 229.471346][ T7080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.472825][ T7080] Call trace: [ 229.473316][ T7080] dump_backtrace+0x0/0x458 [ 229.473994][ T7080] show_stack+0x2c/0x3c [ 229.474609][ T7080] __dump_stack+0x30/0x40 [ 229.475370][ T7080] dump_stack_lvl+0xf4/0x15c [ 229.476116][ T7080] dump_stack+0x1c/0x5c [ 229.476758][ T7080] sysfs_create_dir_ns+0x244/0x264 [ 229.477556][ T7080] kobject_add_internal+0x5ac/0xc3c [ 229.478390][ T7080] kobject_init_and_add+0x124/0x190 [ 229.479192][ T7080] gfs2_sys_fs_add+0x200/0x41c [ 229.479948][ T7080] gfs2_fill_super+0xddc/0x1a18 [ 229.480770][ T7080] get_tree_bdev+0x358/0x544 [ 229.481483][ T7080] gfs2_get_tree+0x54/0x1b4 [ 229.482239][ T7080] vfs_get_tree+0x90/0x274 [ 229.483027][ T7080] do_new_mount+0x228/0x810 [ 229.483793][ T7080] path_mount+0x5bc/0x1008 [ 229.484528][ T7080] __arm64_sys_mount+0x514/0x5f0 [ 229.485317][ T7080] invoke_syscall+0x98/0x2b0 [ 229.486068][ T7080] el0_svc_common+0x138/0x258 [ 229.486839][ T7080] do_el0_svc+0x58/0x13c [ 229.487478][ T7080] el0_svc+0x78/0x1d0 [ 229.488050][ T7080] el0t_64_sync_handler+0xcc/0xe4 [ 229.488761][ T7080] el0t_64_sync+0x1a0/0x1a4 [ 229.490951][ T7080] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.493134][ T7080] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:49 executed programs: 653 [ 229.623685][ T7083] set_capacity_and_notify: 16 callbacks suppressed [ 229.623694][ T7083] loop1: detected capacity change from 0 to 32768 [ 229.665038][ T7083] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.666215][ T7083] CPU: 0 PID: 7083 Comm: syz.1.667 Not tainted syzkaller #0 [ 229.667403][ T7083] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.668999][ T7083] Call trace: [ 229.669504][ T7083] dump_backtrace+0x0/0x458 [ 229.670220][ T7083] show_stack+0x2c/0x3c [ 229.670955][ T7083] __dump_stack+0x30/0x40 [ 229.671682][ T7083] dump_stack_lvl+0xf4/0x15c [ 229.672434][ T7083] dump_stack+0x1c/0x5c [ 229.673076][ T7083] sysfs_create_dir_ns+0x244/0x264 [ 229.673854][ T7083] kobject_add_internal+0x5ac/0xc3c [ 229.674633][ T7083] kobject_init_and_add+0x124/0x190 [ 229.675436][ T7083] gfs2_sys_fs_add+0x200/0x41c [ 229.676214][ T7083] gfs2_fill_super+0xddc/0x1a18 [ 229.677032][ T7083] get_tree_bdev+0x358/0x544 [ 229.677759][ T7083] gfs2_get_tree+0x54/0x1b4 [ 229.678538][ T7083] vfs_get_tree+0x90/0x274 [ 229.679277][ T7083] do_new_mount+0x228/0x810 [ 229.680001][ T7083] path_mount+0x5bc/0x1008 [ 229.680761][ T7083] __arm64_sys_mount+0x514/0x5f0 [ 229.681573][ T7083] invoke_syscall+0x98/0x2b0 [ 229.682326][ T7083] el0_svc_common+0x138/0x258 [ 229.683076][ T7083] do_el0_svc+0x58/0x13c [ 229.683746][ T7083] el0_svc+0x78/0x1d0 [ 229.684408][ T7083] el0t_64_sync_handler+0xcc/0xe4 [ 229.685205][ T7083] el0t_64_sync+0x1a0/0x1a4 [ 229.687387][ T7083] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.689375][ T7083] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.820608][ T7086] loop1: detected capacity change from 0 to 32768 [ 229.856481][ T7086] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.857822][ T7086] CPU: 1 PID: 7086 Comm: syz.1.668 Not tainted syzkaller #0 [ 229.858950][ T7086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.860439][ T7086] Call trace: [ 229.860906][ T7086] dump_backtrace+0x0/0x458 [ 229.861566][ T7086] show_stack+0x2c/0x3c [ 229.862236][ T7086] __dump_stack+0x30/0x40 [ 229.862950][ T7086] dump_stack_lvl+0xf4/0x15c [ 229.863673][ T7086] dump_stack+0x1c/0x5c [ 229.864326][ T7086] sysfs_create_dir_ns+0x244/0x264 [ 229.865146][ T7086] kobject_add_internal+0x5ac/0xc3c [ 229.865968][ T7086] kobject_init_and_add+0x124/0x190 [ 229.866759][ T7086] gfs2_sys_fs_add+0x200/0x41c [ 229.867504][ T7086] gfs2_fill_super+0xddc/0x1a18 [ 229.868284][ T7086] get_tree_bdev+0x358/0x544 [ 229.868991][ T7086] gfs2_get_tree+0x54/0x1b4 [ 229.869694][ T7086] vfs_get_tree+0x90/0x274 [ 229.870365][ T7086] do_new_mount+0x228/0x810 [ 229.871153][ T7086] path_mount+0x5bc/0x1008 [ 229.871875][ T7086] __arm64_sys_mount+0x514/0x5f0 [ 229.872625][ T7086] invoke_syscall+0x98/0x2b0 [ 229.873339][ T7086] el0_svc_common+0x138/0x258 [ 229.874055][ T7086] do_el0_svc+0x58/0x13c [ 229.874725][ T7086] el0_svc+0x78/0x1d0 [ 229.875408][ T7086] el0t_64_sync_handler+0xcc/0xe4 [ 229.876214][ T7086] el0t_64_sync+0x1a0/0x1a4 [ 229.878023][ T7086] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.879998][ T7086] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.009461][ T7089] loop1: detected capacity change from 0 to 32768 [ 230.016648][ T7089] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.017783][ T7089] CPU: 0 PID: 7089 Comm: syz.1.669 Not tainted syzkaller #0 [ 230.018863][ T7089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.020396][ T7089] Call trace: [ 230.021026][ T7089] dump_backtrace+0x0/0x458 [ 230.021759][ T7089] show_stack+0x2c/0x3c [ 230.022452][ T7089] __dump_stack+0x30/0x40 [ 230.023172][ T7089] dump_stack_lvl+0xf4/0x15c [ 230.023926][ T7089] dump_stack+0x1c/0x5c [ 230.024625][ T7089] sysfs_create_dir_ns+0x244/0x264 [ 230.025486][ T7089] kobject_add_internal+0x5ac/0xc3c [ 230.026317][ T7089] kobject_init_and_add+0x124/0x190 [ 230.027119][ T7089] gfs2_sys_fs_add+0x200/0x41c [ 230.027880][ T7089] gfs2_fill_super+0xddc/0x1a18 [ 230.028696][ T7089] get_tree_bdev+0x358/0x544 [ 230.029432][ T7089] gfs2_get_tree+0x54/0x1b4 [ 230.030098][ T7089] vfs_get_tree+0x90/0x274 [ 230.030744][ T7089] do_new_mount+0x228/0x810 [ 230.031435][ T7089] path_mount+0x5bc/0x1008 [ 230.032083][ T7089] __arm64_sys_mount+0x514/0x5f0 [ 230.032915][ T7089] invoke_syscall+0x98/0x2b0 [ 230.033667][ T7089] el0_svc_common+0x138/0x258 [ 230.034417][ T7089] do_el0_svc+0x58/0x13c [ 230.035079][ T7089] el0_svc+0x78/0x1d0 [ 230.035727][ T7089] el0t_64_sync_handler+0xcc/0xe4 [ 230.036458][ T7089] el0t_64_sync+0x1a0/0x1a4 [ 230.037427][ T7089] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.039399][ T7089] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.168590][ T7092] loop1: detected capacity change from 0 to 32768 [ 230.280461][ T7092] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.281743][ T7092] CPU: 0 PID: 7092 Comm: syz.1.670 Not tainted syzkaller #0 [ 230.282922][ T7092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.284592][ T7092] Call trace: [ 230.285112][ T7092] dump_backtrace+0x0/0x458 [ 230.285841][ T7092] show_stack+0x2c/0x3c [ 230.286550][ T7092] __dump_stack+0x30/0x40 [ 230.287310][ T7092] dump_stack_lvl+0xf4/0x15c [ 230.288086][ T7092] dump_stack+0x1c/0x5c [ 230.288751][ T7092] sysfs_create_dir_ns+0x244/0x264 [ 230.289580][ T7092] kobject_add_internal+0x5ac/0xc3c [ 230.290437][ T7092] kobject_init_and_add+0x124/0x190 [ 230.291360][ T7092] gfs2_sys_fs_add+0x200/0x41c [ 230.292139][ T7092] gfs2_fill_super+0xddc/0x1a18 [ 230.292886][ T7092] get_tree_bdev+0x358/0x544 [ 230.293639][ T7092] gfs2_get_tree+0x54/0x1b4 [ 230.294377][ T7092] vfs_get_tree+0x90/0x274 [ 230.295115][ T7092] do_new_mount+0x228/0x810 [ 230.295851][ T7092] path_mount+0x5bc/0x1008 [ 230.296612][ T7092] __arm64_sys_mount+0x514/0x5f0 [ 230.297460][ T7092] invoke_syscall+0x98/0x2b0 [ 230.298248][ T7092] el0_svc_common+0x138/0x258 [ 230.299004][ T7092] do_el0_svc+0x58/0x13c [ 230.299696][ T7092] el0_svc+0x78/0x1d0 [ 230.300346][ T7092] el0t_64_sync_handler+0xcc/0xe4 [ 230.301160][ T7092] el0t_64_sync+0x1a0/0x1a4 [ 230.303557][ T7092] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.305724][ T7092] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.436653][ T7095] loop1: detected capacity change from 0 to 32768 [ 230.440562][ T7095] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.441687][ T7095] CPU: 0 PID: 7095 Comm: syz.1.671 Not tainted syzkaller #0 [ 230.442886][ T7095] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.444556][ T7095] Call trace: [ 230.445140][ T7095] dump_backtrace+0x0/0x458 [ 230.445898][ T7095] show_stack+0x2c/0x3c [ 230.446538][ T7095] __dump_stack+0x30/0x40 [ 230.447284][ T7095] dump_stack_lvl+0xf4/0x15c [ 230.448042][ T7095] dump_stack+0x1c/0x5c [ 230.448718][ T7095] sysfs_create_dir_ns+0x244/0x264 [ 230.449539][ T7095] kobject_add_internal+0x5ac/0xc3c [ 230.450384][ T7095] kobject_init_and_add+0x124/0x190 [ 230.451174][ T7095] gfs2_sys_fs_add+0x200/0x41c [ 230.451918][ T7095] gfs2_fill_super+0xddc/0x1a18 [ 230.452657][ T7095] get_tree_bdev+0x358/0x544 [ 230.453415][ T7095] gfs2_get_tree+0x54/0x1b4 [ 230.454121][ T7095] vfs_get_tree+0x90/0x274 [ 230.454853][ T7095] do_new_mount+0x228/0x810 [ 230.455569][ T7095] path_mount+0x5bc/0x1008 [ 230.456300][ T7095] __arm64_sys_mount+0x514/0x5f0 [ 230.457076][ T7095] invoke_syscall+0x98/0x2b0 [ 230.457825][ T7095] el0_svc_common+0x138/0x258 [ 230.458644][ T7095] do_el0_svc+0x58/0x13c [ 230.459363][ T7095] el0_svc+0x78/0x1d0 [ 230.460035][ T7095] el0t_64_sync_handler+0xcc/0xe4 [ 230.460854][ T7095] el0t_64_sync+0x1a0/0x1a4 [ 230.462913][ T7095] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.464870][ T7095] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.710173][ T7098] loop1: detected capacity change from 0 to 32768 [ 230.748412][ T7098] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.749569][ T7098] CPU: 1 PID: 7098 Comm: syz.1.672 Not tainted syzkaller #0 [ 230.750756][ T7098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.752323][ T7098] Call trace: [ 230.752820][ T7098] dump_backtrace+0x0/0x458 [ 230.753582][ T7098] show_stack+0x2c/0x3c [ 230.754274][ T7098] __dump_stack+0x30/0x40 [ 230.754991][ T7098] dump_stack_lvl+0xf4/0x15c [ 230.755782][ T7098] dump_stack+0x1c/0x5c [ 230.756465][ T7098] sysfs_create_dir_ns+0x244/0x264 [ 230.757292][ T7098] kobject_add_internal+0x5ac/0xc3c [ 230.758128][ T7098] kobject_init_and_add+0x124/0x190 [ 230.758944][ T7098] gfs2_sys_fs_add+0x200/0x41c [ 230.759747][ T7098] gfs2_fill_super+0xddc/0x1a18 [ 230.760506][ T7098] get_tree_bdev+0x358/0x544 [ 230.761238][ T7098] gfs2_get_tree+0x54/0x1b4 [ 230.761977][ T7098] vfs_get_tree+0x90/0x274 [ 230.762647][ T7098] do_new_mount+0x228/0x810 [ 230.763369][ T7098] path_mount+0x5bc/0x1008 [ 230.764075][ T7098] __arm64_sys_mount+0x514/0x5f0 [ 230.764888][ T7098] invoke_syscall+0x98/0x2b0 [ 230.765654][ T7098] el0_svc_common+0x138/0x258 [ 230.766394][ T7098] do_el0_svc+0x58/0x13c [ 230.767051][ T7098] el0_svc+0x78/0x1d0 [ 230.767673][ T7098] el0t_64_sync_handler+0xcc/0xe4 [ 230.768484][ T7098] el0t_64_sync+0x1a0/0x1a4 [ 230.770841][ T7098] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.772901][ T7098] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.903859][ T7101] loop1: detected capacity change from 0 to 32768 [ 230.911473][ T7101] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.912556][ T7101] CPU: 1 PID: 7101 Comm: syz.1.673 Not tainted syzkaller #0 [ 230.913724][ T7101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.915357][ T7101] Call trace: [ 230.915850][ T7101] dump_backtrace+0x0/0x458 [ 230.916632][ T7101] show_stack+0x2c/0x3c [ 230.917356][ T7101] __dump_stack+0x30/0x40 [ 230.918078][ T7101] dump_stack_lvl+0xf4/0x15c [ 230.918814][ T7101] dump_stack+0x1c/0x5c [ 230.919508][ T7101] sysfs_create_dir_ns+0x244/0x264 [ 230.920303][ T7101] kobject_add_internal+0x5ac/0xc3c [ 230.921160][ T7101] kobject_init_and_add+0x124/0x190 [ 230.921984][ T7101] gfs2_sys_fs_add+0x200/0x41c [ 230.922729][ T7101] gfs2_fill_super+0xddc/0x1a18 [ 230.923604][ T7101] get_tree_bdev+0x358/0x544 [ 230.924406][ T7101] gfs2_get_tree+0x54/0x1b4 [ 230.925168][ T7101] vfs_get_tree+0x90/0x274 [ 230.925911][ T7101] do_new_mount+0x228/0x810 [ 230.926666][ T7101] path_mount+0x5bc/0x1008 [ 230.927350][ T7101] __arm64_sys_mount+0x514/0x5f0 [ 230.928076][ T7101] invoke_syscall+0x98/0x2b0 [ 230.928787][ T7101] el0_svc_common+0x138/0x258 [ 230.929454][ T7101] do_el0_svc+0x58/0x13c [ 230.930121][ T7101] el0_svc+0x78/0x1d0 [ 230.930712][ T7101] el0t_64_sync_handler+0xcc/0xe4 [ 230.931507][ T7101] el0t_64_sync+0x1a0/0x1a4 [ 230.934757][ T7101] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.937104][ T7101] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.063139][ T7104] loop1: detected capacity change from 0 to 32768 [ 231.147966][ T7104] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.149048][ T7104] CPU: 1 PID: 7104 Comm: syz.1.674 Not tainted syzkaller #0 [ 231.150170][ T7104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.151781][ T7104] Call trace: [ 231.152413][ T7104] dump_backtrace+0x0/0x458 [ 231.153120][ T7104] show_stack+0x2c/0x3c [ 231.153720][ T7104] __dump_stack+0x30/0x40 [ 231.154399][ T7104] dump_stack_lvl+0xf4/0x15c [ 231.155142][ T7104] dump_stack+0x1c/0x5c [ 231.155828][ T7104] sysfs_create_dir_ns+0x244/0x264 [ 231.156697][ T7104] kobject_add_internal+0x5ac/0xc3c [ 231.157519][ T7104] kobject_init_and_add+0x124/0x190 [ 231.158353][ T7104] gfs2_sys_fs_add+0x200/0x41c [ 231.159091][ T7104] gfs2_fill_super+0xddc/0x1a18 [ 231.159915][ T7104] get_tree_bdev+0x358/0x544 [ 231.160669][ T7104] gfs2_get_tree+0x54/0x1b4 [ 231.161411][ T7104] vfs_get_tree+0x90/0x274 [ 231.162148][ T7104] do_new_mount+0x228/0x810 [ 231.162908][ T7104] path_mount+0x5bc/0x1008 [ 231.163567][ T7104] __arm64_sys_mount+0x514/0x5f0 [ 231.164326][ T7104] invoke_syscall+0x98/0x2b0 [ 231.165020][ T7104] el0_svc_common+0x138/0x258 [ 231.165741][ T7104] do_el0_svc+0x58/0x13c [ 231.166424][ T7104] el0_svc+0x78/0x1d0 [ 231.167025][ T7104] el0t_64_sync_handler+0xcc/0xe4 [ 231.167794][ T7104] el0t_64_sync+0x1a0/0x1a4 [ 231.169848][ T7104] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.171706][ T7104] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.313094][ T7107] loop1: detected capacity change from 0 to 32768 [ 231.365517][ T7107] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.366651][ T7107] CPU: 1 PID: 7107 Comm: syz.1.675 Not tainted syzkaller #0 [ 231.367867][ T7107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.369462][ T7107] Call trace: [ 231.369983][ T7107] dump_backtrace+0x0/0x458 [ 231.370660][ T7107] show_stack+0x2c/0x3c [ 231.371273][ T7107] __dump_stack+0x30/0x40 [ 231.371920][ T7107] dump_stack_lvl+0xf4/0x15c [ 231.372660][ T7107] dump_stack+0x1c/0x5c [ 231.373311][ T7107] sysfs_create_dir_ns+0x244/0x264 [ 231.374071][ T7107] kobject_add_internal+0x5ac/0xc3c [ 231.374861][ T7107] kobject_init_and_add+0x124/0x190 [ 231.375648][ T7107] gfs2_sys_fs_add+0x200/0x41c [ 231.376381][ T7107] gfs2_fill_super+0xddc/0x1a18 [ 231.377142][ T7107] get_tree_bdev+0x358/0x544 [ 231.377853][ T7107] gfs2_get_tree+0x54/0x1b4 [ 231.378523][ T7107] vfs_get_tree+0x90/0x274 [ 231.379223][ T7107] do_new_mount+0x228/0x810 [ 231.379968][ T7107] path_mount+0x5bc/0x1008 [ 231.380692][ T7107] __arm64_sys_mount+0x514/0x5f0 [ 231.381455][ T7107] invoke_syscall+0x98/0x2b0 [ 231.382213][ T7107] el0_svc_common+0x138/0x258 [ 231.382980][ T7107] do_el0_svc+0x58/0x13c [ 231.383612][ T7107] el0_svc+0x78/0x1d0 [ 231.384187][ T7107] el0t_64_sync_handler+0xcc/0xe4 [ 231.384975][ T7107] el0t_64_sync+0x1a0/0x1a4 [ 231.387237][ T7107] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.389157][ T7107] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.519209][ T7110] loop1: detected capacity change from 0 to 32768 [ 231.561942][ T7110] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.563126][ T7110] CPU: 1 PID: 7110 Comm: syz.1.676 Not tainted syzkaller #0 [ 231.564298][ T7110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.565863][ T7110] Call trace: [ 231.566382][ T7110] dump_backtrace+0x0/0x458 [ 231.567067][ T7110] show_stack+0x2c/0x3c [ 231.567663][ T7110] __dump_stack+0x30/0x40 [ 231.568272][ T7110] dump_stack_lvl+0xf4/0x15c [ 231.569015][ T7110] dump_stack+0x1c/0x5c [ 231.569628][ T7110] sysfs_create_dir_ns+0x244/0x264 [ 231.570362][ T7110] kobject_add_internal+0x5ac/0xc3c [ 231.571128][ T7110] kobject_init_and_add+0x124/0x190 [ 231.571986][ T7110] gfs2_sys_fs_add+0x200/0x41c [ 231.572790][ T7110] gfs2_fill_super+0xddc/0x1a18 [ 231.573584][ T7110] get_tree_bdev+0x358/0x544 [ 231.574365][ T7110] gfs2_get_tree+0x54/0x1b4 [ 231.575104][ T7110] vfs_get_tree+0x90/0x274 [ 231.575801][ T7110] do_new_mount+0x228/0x810 [ 231.576506][ T7110] path_mount+0x5bc/0x1008 [ 231.577215][ T7110] __arm64_sys_mount+0x514/0x5f0 [ 231.577973][ T7110] invoke_syscall+0x98/0x2b0 [ 231.578753][ T7110] el0_svc_common+0x138/0x258 [ 231.579506][ T7110] do_el0_svc+0x58/0x13c [ 231.580166][ T7110] el0_svc+0x78/0x1d0 [ 231.580785][ T7110] el0t_64_sync_handler+0xcc/0xe4 [ 231.581579][ T7110] el0t_64_sync+0x1a0/0x1a4 [ 231.583690][ T7110] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.585943][ T7110] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.757206][ T7113] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.758642][ T7113] CPU: 1 PID: 7113 Comm: syz.1.677 Not tainted syzkaller #0 [ 231.759736][ T7113] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.761235][ T7113] Call trace: [ 231.761747][ T7113] dump_backtrace+0x0/0x458 [ 231.762473][ T7113] show_stack+0x2c/0x3c [ 231.763143][ T7113] __dump_stack+0x30/0x40 [ 231.763853][ T7113] dump_stack_lvl+0xf4/0x15c [ 231.764553][ T7113] dump_stack+0x1c/0x5c [ 231.765229][ T7113] sysfs_create_dir_ns+0x244/0x264 [ 231.766069][ T7113] kobject_add_internal+0x5ac/0xc3c [ 231.766940][ T7113] kobject_init_and_add+0x124/0x190 [ 231.767749][ T7113] gfs2_sys_fs_add+0x200/0x41c [ 231.768524][ T7113] gfs2_fill_super+0xddc/0x1a18 [ 231.769304][ T7113] get_tree_bdev+0x358/0x544 [ 231.770012][ T7113] gfs2_get_tree+0x54/0x1b4 [ 231.770718][ T7113] vfs_get_tree+0x90/0x274 [ 231.771417][ T7113] do_new_mount+0x228/0x810 [ 231.772140][ T7113] path_mount+0x5bc/0x1008 [ 231.772764][ T7113] __arm64_sys_mount+0x514/0x5f0 [ 231.773531][ T7113] invoke_syscall+0x98/0x2b0 [ 231.774227][ T7113] el0_svc_common+0x138/0x258 [ 231.774978][ T7113] do_el0_svc+0x58/0x13c [ 231.775637][ T7113] el0_svc+0x78/0x1d0 [ 231.776245][ T7113] el0t_64_sync_handler+0xcc/0xe4 [ 231.777024][ T7113] el0t_64_sync+0x1a0/0x1a4 [ 231.779110][ T7113] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.781220][ T7113] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.019913][ T7116] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.021180][ T7116] CPU: 0 PID: 7116 Comm: syz.1.678 Not tainted syzkaller #0 [ 232.022279][ T7116] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.023849][ T7116] Call trace: [ 232.024393][ T7116] dump_backtrace+0x0/0x458 [ 232.025129][ T7116] show_stack+0x2c/0x3c [ 232.025811][ T7116] __dump_stack+0x30/0x40 [ 232.026496][ T7116] dump_stack_lvl+0xf4/0x15c [ 232.027274][ T7116] dump_stack+0x1c/0x5c [ 232.027944][ T7116] sysfs_create_dir_ns+0x244/0x264 [ 232.028783][ T7116] kobject_add_internal+0x5ac/0xc3c [ 232.029620][ T7116] kobject_init_and_add+0x124/0x190 [ 232.030402][ T7116] gfs2_sys_fs_add+0x200/0x41c [ 232.031147][ T7116] gfs2_fill_super+0xddc/0x1a18 [ 232.031898][ T7116] get_tree_bdev+0x358/0x544 [ 232.032630][ T7116] gfs2_get_tree+0x54/0x1b4 [ 232.033375][ T7116] vfs_get_tree+0x90/0x274 [ 232.034085][ T7116] do_new_mount+0x228/0x810 [ 232.034849][ T7116] path_mount+0x5bc/0x1008 [ 232.035562][ T7116] __arm64_sys_mount+0x514/0x5f0 [ 232.036344][ T7116] invoke_syscall+0x98/0x2b0 [ 232.037051][ T7116] el0_svc_common+0x138/0x258 [ 232.037785][ T7116] do_el0_svc+0x58/0x13c [ 232.038440][ T7116] el0_svc+0x78/0x1d0 [ 232.039041][ T7116] el0t_64_sync_handler+0xcc/0xe4 [ 232.039801][ T7116] el0t_64_sync+0x1a0/0x1a4 [ 232.041847][ T7116] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.043877][ T7116] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.183713][ T7119] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.185669][ T7119] CPU: 1 PID: 7119 Comm: syz.1.679 Not tainted syzkaller #0 [ 232.186747][ T7119] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.188353][ T7119] Call trace: [ 232.188788][ T7119] dump_backtrace+0x0/0x458 [ 232.189467][ T7119] show_stack+0x2c/0x3c [ 232.190104][ T7119] __dump_stack+0x30/0x40 [ 232.190718][ T7119] dump_stack_lvl+0xf4/0x15c [ 232.191391][ T7119] dump_stack+0x1c/0x5c [ 232.191998][ T7119] sysfs_create_dir_ns+0x244/0x264 [ 232.192703][ T7119] kobject_add_internal+0x5ac/0xc3c [ 232.193465][ T7119] kobject_init_and_add+0x124/0x190 [ 232.194183][ T7119] gfs2_sys_fs_add+0x200/0x41c [ 232.194947][ T7119] gfs2_fill_super+0xddc/0x1a18 [ 232.195719][ T7119] get_tree_bdev+0x358/0x544 [ 232.196398][ T7119] gfs2_get_tree+0x54/0x1b4 [ 232.197121][ T7119] vfs_get_tree+0x90/0x274 [ 232.197840][ T7119] do_new_mount+0x228/0x810 [ 232.198535][ T7119] path_mount+0x5bc/0x1008 [ 232.199176][ T7119] __arm64_sys_mount+0x514/0x5f0 [ 232.199904][ T7119] invoke_syscall+0x98/0x2b0 [ 232.200638][ T7119] el0_svc_common+0x138/0x258 [ 232.201389][ T7119] do_el0_svc+0x58/0x13c [ 232.202055][ T7119] el0_svc+0x78/0x1d0 [ 232.202668][ T7119] el0t_64_sync_handler+0xcc/0xe4 [ 232.203484][ T7119] el0t_64_sync+0x1a0/0x1a4 [ 232.204859][ T7119] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.206809][ T7119] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.418115][ T7122] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.419201][ T7122] CPU: 1 PID: 7122 Comm: syz.1.680 Not tainted syzkaller #0 [ 232.420419][ T7122] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.422087][ T7122] Call trace: [ 232.422619][ T7122] dump_backtrace+0x0/0x458 [ 232.423407][ T7122] show_stack+0x2c/0x3c [ 232.424054][ T7122] __dump_stack+0x30/0x40 [ 232.424782][ T7122] dump_stack_lvl+0xf4/0x15c [ 232.425497][ T7122] dump_stack+0x1c/0x5c [ 232.426174][ T7122] sysfs_create_dir_ns+0x244/0x264 [ 232.427012][ T7122] kobject_add_internal+0x5ac/0xc3c [ 232.427900][ T7122] kobject_init_and_add+0x124/0x190 [ 232.428759][ T7122] gfs2_sys_fs_add+0x200/0x41c [ 232.429555][ T7122] gfs2_fill_super+0xddc/0x1a18 [ 232.430338][ T7122] get_tree_bdev+0x358/0x544 [ 232.431075][ T7122] gfs2_get_tree+0x54/0x1b4 [ 232.431773][ T7122] vfs_get_tree+0x90/0x274 [ 232.432476][ T7122] do_new_mount+0x228/0x810 [ 232.433221][ T7122] path_mount+0x5bc/0x1008 [ 232.433924][ T7122] __arm64_sys_mount+0x514/0x5f0 [ 232.434759][ T7122] invoke_syscall+0x98/0x2b0 [ 232.435539][ T7122] el0_svc_common+0x138/0x258 [ 232.436291][ T7122] do_el0_svc+0x58/0x13c [ 232.436985][ T7122] el0_svc+0x78/0x1d0 [ 232.437616][ T7122] el0t_64_sync_handler+0xcc/0xe4 [ 232.438407][ T7122] el0t_64_sync+0x1a0/0x1a4 [ 232.441433][ T7122] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.443475][ T7122] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.659810][ T7125] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.661347][ T7125] CPU: 1 PID: 7125 Comm: syz.1.681 Not tainted syzkaller #0 [ 232.662594][ T7125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.664156][ T7125] Call trace: [ 232.664671][ T7125] dump_backtrace+0x0/0x458 [ 232.665385][ T7125] show_stack+0x2c/0x3c [ 232.666023][ T7125] __dump_stack+0x30/0x40 [ 232.666696][ T7125] dump_stack_lvl+0xf4/0x15c [ 232.667375][ T7125] dump_stack+0x1c/0x5c [ 232.668026][ T7125] sysfs_create_dir_ns+0x244/0x264 [ 232.668875][ T7125] kobject_add_internal+0x5ac/0xc3c [ 232.669731][ T7125] kobject_init_and_add+0x124/0x190 [ 232.670607][ T7125] gfs2_sys_fs_add+0x200/0x41c [ 232.671347][ T7125] gfs2_fill_super+0xddc/0x1a18 [ 232.672095][ T7125] get_tree_bdev+0x358/0x544 [ 232.672822][ T7125] gfs2_get_tree+0x54/0x1b4 [ 232.673532][ T7125] vfs_get_tree+0x90/0x274 [ 232.674308][ T7125] do_new_mount+0x228/0x810 [ 232.675076][ T7125] path_mount+0x5bc/0x1008 [ 232.675794][ T7125] __arm64_sys_mount+0x514/0x5f0 [ 232.676563][ T7125] invoke_syscall+0x98/0x2b0 [ 232.677276][ T7125] el0_svc_common+0x138/0x258 [ 232.677980][ T7125] do_el0_svc+0x58/0x13c [ 232.678672][ T7125] el0_svc+0x78/0x1d0 [ 232.679318][ T7125] el0t_64_sync_handler+0xcc/0xe4 [ 232.680137][ T7125] el0t_64_sync+0x1a0/0x1a4 [ 232.681993][ T7125] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.683757][ T7125] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.822268][ T7128] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.823339][ T7128] CPU: 0 PID: 7128 Comm: syz.1.682 Not tainted syzkaller #0 [ 232.824552][ T7128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.826242][ T7128] Call trace: [ 232.826796][ T7128] dump_backtrace+0x0/0x458 [ 232.827509][ T7128] show_stack+0x2c/0x3c [ 232.828185][ T7128] __dump_stack+0x30/0x40 [ 232.828856][ T7128] dump_stack_lvl+0xf4/0x15c [ 232.829554][ T7128] dump_stack+0x1c/0x5c [ 232.830152][ T7128] sysfs_create_dir_ns+0x244/0x264 [ 232.830941][ T7128] kobject_add_internal+0x5ac/0xc3c [ 232.831776][ T7128] kobject_init_and_add+0x124/0x190 [ 232.832545][ T7128] gfs2_sys_fs_add+0x200/0x41c [ 232.833280][ T7128] gfs2_fill_super+0xddc/0x1a18 [ 232.834026][ T7128] get_tree_bdev+0x358/0x544 [ 232.834699][ T7128] gfs2_get_tree+0x54/0x1b4 [ 232.835354][ T7128] vfs_get_tree+0x90/0x274 [ 232.836010][ T7128] do_new_mount+0x228/0x810 [ 232.836773][ T7128] path_mount+0x5bc/0x1008 [ 232.837492][ T7128] __arm64_sys_mount+0x514/0x5f0 [ 232.838246][ T7128] invoke_syscall+0x98/0x2b0 [ 232.838948][ T7128] el0_svc_common+0x138/0x258 [ 232.839696][ T7128] do_el0_svc+0x58/0x13c [ 232.840345][ T7128] el0_svc+0x78/0x1d0 [ 232.840917][ T7128] el0t_64_sync_handler+0xcc/0xe4 [ 232.841663][ T7128] el0t_64_sync+0x1a0/0x1a4 [ 232.844314][ T7128] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.846298][ T7128] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.015127][ T7131] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.016282][ T7131] CPU: 0 PID: 7131 Comm: syz.1.683 Not tainted syzkaller #0 [ 233.017440][ T7131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.018959][ T7131] Call trace: [ 233.019470][ T7131] dump_backtrace+0x0/0x458 [ 233.020160][ T7131] show_stack+0x2c/0x3c [ 233.020827][ T7131] __dump_stack+0x30/0x40 [ 233.021474][ T7131] dump_stack_lvl+0xf4/0x15c [ 233.022196][ T7131] dump_stack+0x1c/0x5c [ 233.022832][ T7131] sysfs_create_dir_ns+0x244/0x264 [ 233.023664][ T7131] kobject_add_internal+0x5ac/0xc3c [ 233.024540][ T7131] kobject_init_and_add+0x124/0x190 [ 233.025411][ T7131] gfs2_sys_fs_add+0x200/0x41c [ 233.026168][ T7131] gfs2_fill_super+0xddc/0x1a18 [ 233.026972][ T7131] get_tree_bdev+0x358/0x544 [ 233.027746][ T7131] gfs2_get_tree+0x54/0x1b4 [ 233.028478][ T7131] vfs_get_tree+0x90/0x274 [ 233.029188][ T7131] do_new_mount+0x228/0x810 [ 233.029905][ T7131] path_mount+0x5bc/0x1008 [ 233.030595][ T7131] __arm64_sys_mount+0x514/0x5f0 [ 233.031336][ T7131] invoke_syscall+0x98/0x2b0 [ 233.032021][ T7131] el0_svc_common+0x138/0x258 [ 233.032698][ T7131] do_el0_svc+0x58/0x13c [ 233.033399][ T7131] el0_svc+0x78/0x1d0 [ 233.034064][ T7131] el0t_64_sync_handler+0xcc/0xe4 [ 233.034923][ T7131] el0t_64_sync+0x1a0/0x1a4 [ 233.036407][ T7131] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.038464][ T7131] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.176049][ T7134] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.177398][ T7134] CPU: 1 PID: 7134 Comm: syz.1.684 Not tainted syzkaller #0 [ 233.178519][ T7134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.180207][ T7134] Call trace: [ 233.180751][ T7134] dump_backtrace+0x0/0x458 [ 233.181459][ T7134] show_stack+0x2c/0x3c [ 233.182084][ T7134] __dump_stack+0x30/0x40 [ 233.182777][ T7134] dump_stack_lvl+0xf4/0x15c [ 233.183489][ T7134] dump_stack+0x1c/0x5c [ 233.184153][ T7134] sysfs_create_dir_ns+0x244/0x264 [ 233.185013][ T7134] kobject_add_internal+0x5ac/0xc3c [ 233.185877][ T7134] kobject_init_and_add+0x124/0x190 [ 233.186715][ T7134] gfs2_sys_fs_add+0x200/0x41c [ 233.187471][ T7134] gfs2_fill_super+0xddc/0x1a18 [ 233.188221][ T7134] get_tree_bdev+0x358/0x544 [ 233.188956][ T7134] gfs2_get_tree+0x54/0x1b4 [ 233.189691][ T7134] vfs_get_tree+0x90/0x274 [ 233.190399][ T7134] do_new_mount+0x228/0x810 [ 233.191107][ T7134] path_mount+0x5bc/0x1008 [ 233.191805][ T7134] __arm64_sys_mount+0x514/0x5f0 [ 233.192633][ T7134] invoke_syscall+0x98/0x2b0 [ 233.193386][ T7134] el0_svc_common+0x138/0x258 [ 233.194166][ T7134] do_el0_svc+0x58/0x13c [ 233.194856][ T7134] el0_svc+0x78/0x1d0 [ 233.195505][ T7134] el0t_64_sync_handler+0xcc/0xe4 [ 233.196360][ T7134] el0t_64_sync+0x1a0/0x1a4 [ 233.198768][ T7134] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.200763][ T7134] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.424062][ T7137] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.425244][ T7137] CPU: 0 PID: 7137 Comm: syz.1.685 Not tainted syzkaller #0 [ 233.426349][ T7137] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.427995][ T7137] Call trace: [ 233.428530][ T7137] dump_backtrace+0x0/0x458 [ 233.429245][ T7137] show_stack+0x2c/0x3c [ 233.429916][ T7137] __dump_stack+0x30/0x40 [ 233.430585][ T7137] dump_stack_lvl+0xf4/0x15c [ 233.431319][ T7137] dump_stack+0x1c/0x5c [ 233.432017][ T7137] sysfs_create_dir_ns+0x244/0x264 [ 233.432839][ T7137] kobject_add_internal+0x5ac/0xc3c [ 233.433709][ T7137] kobject_init_and_add+0x124/0x190 [ 233.434539][ T7137] gfs2_sys_fs_add+0x200/0x41c [ 233.435285][ T7137] gfs2_fill_super+0xddc/0x1a18 [ 233.436084][ T7137] get_tree_bdev+0x358/0x544 [ 233.436831][ T7137] gfs2_get_tree+0x54/0x1b4 [ 233.437569][ T7137] vfs_get_tree+0x90/0x274 [ 233.438267][ T7137] do_new_mount+0x228/0x810 [ 233.438987][ T7137] path_mount+0x5bc/0x1008 [ 233.439697][ T7137] __arm64_sys_mount+0x514/0x5f0 [ 233.440454][ T7137] invoke_syscall+0x98/0x2b0 [ 233.441170][ T7137] el0_svc_common+0x138/0x258 [ 233.441919][ T7137] do_el0_svc+0x58/0x13c [ 233.442621][ T7137] el0_svc+0x78/0x1d0 [ 233.443282][ T7137] el0t_64_sync_handler+0xcc/0xe4 [ 233.444072][ T7137] el0t_64_sync+0x1a0/0x1a4 [ 233.445084][ T7137] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.447212][ T7137] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.659814][ T7140] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.661015][ T7140] CPU: 0 PID: 7140 Comm: syz.1.686 Not tainted syzkaller #0 [ 233.662164][ T7140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.663876][ T7140] Call trace: [ 233.664442][ T7140] dump_backtrace+0x0/0x458 [ 233.665213][ T7140] show_stack+0x2c/0x3c [ 233.666007][ T7140] __dump_stack+0x30/0x40 [ 233.666752][ T7140] dump_stack_lvl+0xf4/0x15c [ 233.667571][ T7140] dump_stack+0x1c/0x5c [ 233.668239][ T7140] sysfs_create_dir_ns+0x244/0x264 [ 233.669074][ T7140] kobject_add_internal+0x5ac/0xc3c [ 233.669921][ T7140] kobject_init_and_add+0x124/0x190 [ 233.670746][ T7140] gfs2_sys_fs_add+0x200/0x41c [ 233.671498][ T7140] gfs2_fill_super+0xddc/0x1a18 [ 233.672323][ T7140] get_tree_bdev+0x358/0x544 [ 233.673016][ T7140] gfs2_get_tree+0x54/0x1b4 [ 233.673694][ T7140] vfs_get_tree+0x90/0x274 [ 233.674376][ T7140] do_new_mount+0x228/0x810 [ 233.675057][ T7140] path_mount+0x5bc/0x1008 [ 233.675713][ T7140] __arm64_sys_mount+0x514/0x5f0 [ 233.676454][ T7140] invoke_syscall+0x98/0x2b0 [ 233.677174][ T7140] el0_svc_common+0x138/0x258 [ 233.677922][ T7140] do_el0_svc+0x58/0x13c [ 233.678630][ T7140] el0_svc+0x78/0x1d0 [ 233.679273][ T7140] el0t_64_sync_handler+0xcc/0xe4 [ 233.680079][ T7140] el0t_64_sync+0x1a0/0x1a4 [ 233.680904][ T7140] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.682926][ T7140] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.855089][ T7143] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.856241][ T7143] CPU: 1 PID: 7143 Comm: syz.1.687 Not tainted syzkaller #0 [ 233.857390][ T7143] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.859109][ T7143] Call trace: [ 233.859665][ T7143] dump_backtrace+0x0/0x458 [ 233.860415][ T7143] show_stack+0x2c/0x3c [ 233.861090][ T7143] __dump_stack+0x30/0x40 [ 233.861786][ T7143] dump_stack_lvl+0xf4/0x15c [ 233.862505][ T7143] dump_stack+0x1c/0x5c [ 233.863168][ T7143] sysfs_create_dir_ns+0x244/0x264 [ 233.864040][ T7143] kobject_add_internal+0x5ac/0xc3c [ 233.864893][ T7143] kobject_init_and_add+0x124/0x190 [ 233.865778][ T7143] gfs2_sys_fs_add+0x200/0x41c [ 233.866566][ T7143] gfs2_fill_super+0xddc/0x1a18 [ 233.867387][ T7143] get_tree_bdev+0x358/0x544 [ 233.868136][ T7143] gfs2_get_tree+0x54/0x1b4 [ 233.868823][ T7143] vfs_get_tree+0x90/0x274 [ 233.869469][ T7143] do_new_mount+0x228/0x810 [ 233.870140][ T7143] path_mount+0x5bc/0x1008 [ 233.870866][ T7143] __arm64_sys_mount+0x514/0x5f0 [ 233.871656][ T7143] invoke_syscall+0x98/0x2b0 [ 233.872447][ T7143] el0_svc_common+0x138/0x258 [ 233.873230][ T7143] do_el0_svc+0x58/0x13c [ 233.873926][ T7143] el0_svc+0x78/0x1d0 [ 233.874552][ T7143] el0t_64_sync_handler+0xcc/0xe4 [ 233.875340][ T7143] el0t_64_sync+0x1a0/0x1a4 [ 233.877725][ T7143] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.879774][ T7143] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.120031][ T7146] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.121255][ T7146] CPU: 0 PID: 7146 Comm: syz.1.688 Not tainted syzkaller #0 [ 234.122540][ T7146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.124046][ T7146] Call trace: [ 234.124599][ T7146] dump_backtrace+0x0/0x458 [ 234.125376][ T7146] show_stack+0x2c/0x3c [ 234.126068][ T7146] __dump_stack+0x30/0x40 [ 234.126784][ T7146] dump_stack_lvl+0xf4/0x15c [ 234.127551][ T7146] dump_stack+0x1c/0x5c [ 234.128271][ T7146] sysfs_create_dir_ns+0x244/0x264 [ 234.129082][ T7146] kobject_add_internal+0x5ac/0xc3c [ 234.129868][ T7146] kobject_init_and_add+0x124/0x190 [ 234.130639][ T7146] gfs2_sys_fs_add+0x200/0x41c [ 234.131345][ T7146] gfs2_fill_super+0xddc/0x1a18 [ 234.132054][ T7146] get_tree_bdev+0x358/0x544 [ 234.132769][ T7146] gfs2_get_tree+0x54/0x1b4 [ 234.133477][ T7146] vfs_get_tree+0x90/0x274 [ 234.134211][ T7146] do_new_mount+0x228/0x810 [ 234.134920][ T7146] path_mount+0x5bc/0x1008 [ 234.135614][ T7146] __arm64_sys_mount+0x514/0x5f0 [ 234.136348][ T7146] invoke_syscall+0x98/0x2b0 [ 234.137061][ T7146] el0_svc_common+0x138/0x258 [ 234.137754][ T7146] do_el0_svc+0x58/0x13c [ 234.138351][ T7146] el0_svc+0x78/0x1d0 [ 234.138935][ T7146] el0t_64_sync_handler+0xcc/0xe4 [ 234.139823][ T7146] el0t_64_sync+0x1a0/0x1a4 [ 234.140726][ T7146] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.142686][ T7146] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.354911][ T7149] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.356092][ T7149] CPU: 1 PID: 7149 Comm: syz.1.689 Not tainted syzkaller #0 [ 234.357277][ T7149] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.358929][ T7149] Call trace: [ 234.359446][ T7149] dump_backtrace+0x0/0x458 [ 234.360170][ T7149] show_stack+0x2c/0x3c [ 234.360826][ T7149] __dump_stack+0x30/0x40 [ 234.361526][ T7149] dump_stack_lvl+0xf4/0x15c [ 234.362256][ T7149] dump_stack+0x1c/0x5c [ 234.362953][ T7149] sysfs_create_dir_ns+0x244/0x264 [ 234.363770][ T7149] kobject_add_internal+0x5ac/0xc3c [ 234.364592][ T7149] kobject_init_and_add+0x124/0x190 [ 234.365434][ T7149] gfs2_sys_fs_add+0x200/0x41c [ 234.366186][ T7149] gfs2_fill_super+0xddc/0x1a18 [ 234.367007][ T7149] get_tree_bdev+0x358/0x544 [ 234.367768][ T7149] gfs2_get_tree+0x54/0x1b4 [ 234.368446][ T7149] vfs_get_tree+0x90/0x274 [ 234.369053][ T7149] do_new_mount+0x228/0x810 [ 234.369719][ T7149] path_mount+0x5bc/0x1008 [ 234.370369][ T7149] __arm64_sys_mount+0x514/0x5f0 [ 234.371113][ T7149] invoke_syscall+0x98/0x2b0 [ 234.371881][ T7149] el0_svc_common+0x138/0x258 [ 234.372628][ T7149] do_el0_svc+0x58/0x13c [ 234.373299][ T7149] el0_svc+0x78/0x1d0 [ 234.373900][ T7149] el0t_64_sync_handler+0xcc/0xe4 [ 234.374653][ T7149] el0t_64_sync+0x1a0/0x1a4 [ 234.376309][ T7149] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.378356][ T7149] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.674179][ T7152] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.675378][ T7152] CPU: 0 PID: 7152 Comm: syz.1.690 Not tainted syzkaller #0 [ 234.676483][ T7152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.678072][ T7152] Call trace: [ 234.678567][ T7152] dump_backtrace+0x0/0x458 [ 234.679318][ T7152] show_stack+0x2c/0x3c [ 234.679955][ T7152] __dump_stack+0x30/0x40 [ 234.680657][ T7152] dump_stack_lvl+0xf4/0x15c [ 234.681412][ T7152] dump_stack+0x1c/0x5c [ 234.682123][ T7152] sysfs_create_dir_ns+0x244/0x264 [ 234.682982][ T7152] kobject_add_internal+0x5ac/0xc3c [ 234.683833][ T7152] kobject_init_and_add+0x124/0x190 [ 234.684668][ T7152] gfs2_sys_fs_add+0x200/0x41c [ 234.685478][ T7152] gfs2_fill_super+0xddc/0x1a18 [ 234.686317][ T7152] get_tree_bdev+0x358/0x544 [ 234.687114][ T7152] gfs2_get_tree+0x54/0x1b4 [ 234.687821][ T7152] vfs_get_tree+0x90/0x274 [ 234.688517][ T7152] do_new_mount+0x228/0x810 [ 234.689233][ T7152] path_mount+0x5bc/0x1008 [ 234.689973][ T7152] __arm64_sys_mount+0x514/0x5f0 [ 234.690786][ T7152] invoke_syscall+0x98/0x2b0 [ 234.691532][ T7152] el0_svc_common+0x138/0x258 [ 234.692336][ T7152] do_el0_svc+0x58/0x13c [ 234.692991][ T7152] el0_svc+0x78/0x1d0 [ 234.693666][ T7152] el0t_64_sync_handler+0xcc/0xe4 [ 234.694517][ T7152] el0t_64_sync+0x1a0/0x1a4 [ 234.695536][ T7152] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.697504][ T7152] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:54 executed programs: 677 [ 234.827689][ T7155] set_capacity_and_notify: 14 callbacks suppressed [ 234.827700][ T7155] loop1: detected capacity change from 0 to 32768 [ 234.865298][ T7155] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.866425][ T7155] CPU: 0 PID: 7155 Comm: syz.1.691 Not tainted syzkaller #0 [ 234.867575][ T7155] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.869151][ T7155] Call trace: [ 234.869644][ T7155] dump_backtrace+0x0/0x458 [ 234.870304][ T7155] show_stack+0x2c/0x3c [ 234.870914][ T7155] __dump_stack+0x30/0x40 [ 234.871577][ T7155] dump_stack_lvl+0xf4/0x15c [ 234.872281][ T7155] dump_stack+0x1c/0x5c [ 234.872891][ T7155] sysfs_create_dir_ns+0x244/0x264 [ 234.873686][ T7155] kobject_add_internal+0x5ac/0xc3c [ 234.874567][ T7155] kobject_init_and_add+0x124/0x190 [ 234.875447][ T7155] gfs2_sys_fs_add+0x200/0x41c [ 234.876233][ T7155] gfs2_fill_super+0xddc/0x1a18 [ 234.877025][ T7155] get_tree_bdev+0x358/0x544 [ 234.877821][ T7155] gfs2_get_tree+0x54/0x1b4 [ 234.878567][ T7155] vfs_get_tree+0x90/0x274 [ 234.879263][ T7155] do_new_mount+0x228/0x810 [ 234.879980][ T7155] path_mount+0x5bc/0x1008 [ 234.880728][ T7155] __arm64_sys_mount+0x514/0x5f0 [ 234.881482][ T7155] invoke_syscall+0x98/0x2b0 [ 234.882199][ T7155] el0_svc_common+0x138/0x258 [ 234.882978][ T7155] do_el0_svc+0x58/0x13c [ 234.883688][ T7155] el0_svc+0x78/0x1d0 [ 234.884304][ T7155] el0t_64_sync_handler+0xcc/0xe4 [ 234.885142][ T7155] el0t_64_sync+0x1a0/0x1a4 [ 234.887324][ T7155] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.889277][ T7155] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.025267][ T7158] loop1: detected capacity change from 0 to 32768 [ 235.079866][ T7158] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.081067][ T7158] CPU: 0 PID: 7158 Comm: syz.1.692 Not tainted syzkaller #0 [ 235.082264][ T7158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.083926][ T7158] Call trace: [ 235.084431][ T7158] dump_backtrace+0x0/0x458 [ 235.085167][ T7158] show_stack+0x2c/0x3c [ 235.085819][ T7158] __dump_stack+0x30/0x40 [ 235.086491][ T7158] dump_stack_lvl+0xf4/0x15c [ 235.087275][ T7158] dump_stack+0x1c/0x5c [ 235.087942][ T7158] sysfs_create_dir_ns+0x244/0x264 [ 235.088754][ T7158] kobject_add_internal+0x5ac/0xc3c [ 235.089579][ T7158] kobject_init_and_add+0x124/0x190 [ 235.090379][ T7158] gfs2_sys_fs_add+0x200/0x41c [ 235.091127][ T7158] gfs2_fill_super+0xddc/0x1a18 [ 235.091855][ T7158] get_tree_bdev+0x358/0x544 [ 235.092558][ T7158] gfs2_get_tree+0x54/0x1b4 [ 235.093330][ T7158] vfs_get_tree+0x90/0x274 [ 235.094116][ T7158] do_new_mount+0x228/0x810 [ 235.094816][ T7158] path_mount+0x5bc/0x1008 [ 235.095579][ T7158] __arm64_sys_mount+0x514/0x5f0 [ 235.096400][ T7158] invoke_syscall+0x98/0x2b0 [ 235.097141][ T7158] el0_svc_common+0x138/0x258 [ 235.097837][ T7158] do_el0_svc+0x58/0x13c [ 235.098490][ T7158] el0_svc+0x78/0x1d0 [ 235.099153][ T7158] el0t_64_sync_handler+0xcc/0xe4 [ 235.099957][ T7158] el0t_64_sync+0x1a0/0x1a4 [ 235.101353][ T7158] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.103365][ T7158] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.237631][ T7161] loop1: detected capacity change from 0 to 32768 [ 235.279316][ T7161] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.280520][ T7161] CPU: 0 PID: 7161 Comm: syz.1.693 Not tainted syzkaller #0 [ 235.281737][ T7161] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.283143][ T7161] Call trace: [ 235.283604][ T7161] dump_backtrace+0x0/0x458 [ 235.284297][ T7161] show_stack+0x2c/0x3c [ 235.284897][ T7161] __dump_stack+0x30/0x40 [ 235.285563][ T7161] dump_stack_lvl+0xf4/0x15c [ 235.286242][ T7161] dump_stack+0x1c/0x5c [ 235.286873][ T7161] sysfs_create_dir_ns+0x244/0x264 [ 235.287684][ T7161] kobject_add_internal+0x5ac/0xc3c [ 235.288470][ T7161] kobject_init_and_add+0x124/0x190 [ 235.289293][ T7161] gfs2_sys_fs_add+0x200/0x41c [ 235.289990][ T7161] gfs2_fill_super+0xddc/0x1a18 [ 235.290854][ T7161] get_tree_bdev+0x358/0x544 [ 235.291604][ T7161] gfs2_get_tree+0x54/0x1b4 [ 235.292296][ T7161] vfs_get_tree+0x90/0x274 [ 235.292970][ T7161] do_new_mount+0x228/0x810 [ 235.293649][ T7161] path_mount+0x5bc/0x1008 [ 235.294299][ T7161] __arm64_sys_mount+0x514/0x5f0 [ 235.295053][ T7161] invoke_syscall+0x98/0x2b0 [ 235.295794][ T7161] el0_svc_common+0x138/0x258 [ 235.296475][ T7161] do_el0_svc+0x58/0x13c [ 235.297224][ T7161] el0_svc+0x78/0x1d0 [ 235.297873][ T7161] el0t_64_sync_handler+0xcc/0xe4 [ 235.298604][ T7161] el0t_64_sync+0x1a0/0x1a4 [ 235.300006][ T7161] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.302061][ T7161] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.435801][ T7164] loop1: detected capacity change from 0 to 32768 [ 235.503862][ T7164] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.506803][ T7164] CPU: 1 PID: 7164 Comm: syz.1.694 Not tainted syzkaller #0 [ 235.507877][ T7164] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.509481][ T7164] Call trace: [ 235.510023][ T7164] dump_backtrace+0x0/0x458 [ 235.510743][ T7164] show_stack+0x2c/0x3c [ 235.511408][ T7164] __dump_stack+0x30/0x40 [ 235.512113][ T7164] dump_stack_lvl+0xf4/0x15c [ 235.512829][ T7164] dump_stack+0x1c/0x5c [ 235.513534][ T7164] sysfs_create_dir_ns+0x244/0x264 [ 235.514316][ T7164] kobject_add_internal+0x5ac/0xc3c [ 235.515112][ T7164] kobject_init_and_add+0x124/0x190 [ 235.515890][ T7164] gfs2_sys_fs_add+0x200/0x41c [ 235.516588][ T7164] gfs2_fill_super+0xddc/0x1a18 [ 235.517398][ T7164] get_tree_bdev+0x358/0x544 [ 235.518111][ T7164] gfs2_get_tree+0x54/0x1b4 [ 235.518808][ T7164] vfs_get_tree+0x90/0x274 [ 235.519531][ T7164] do_new_mount+0x228/0x810 [ 235.520306][ T7164] path_mount+0x5bc/0x1008 [ 235.521003][ T7164] __arm64_sys_mount+0x514/0x5f0 [ 235.521809][ T7164] invoke_syscall+0x98/0x2b0 [ 235.522541][ T7164] el0_svc_common+0x138/0x258 [ 235.523247][ T7164] do_el0_svc+0x58/0x13c [ 235.523904][ T7164] el0_svc+0x78/0x1d0 [ 235.524523][ T7164] el0t_64_sync_handler+0xcc/0xe4 [ 235.525258][ T7164] el0t_64_sync+0x1a0/0x1a4 [ 235.527596][ T7164] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.529514][ T7164] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.665021][ T7167] loop1: detected capacity change from 0 to 32768 [ 235.716127][ T7167] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.716143][ T7167] CPU: 1 PID: 7167 Comm: syz.1.695 Not tainted syzkaller #0 [ 235.716150][ T7167] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.716155][ T7167] Call trace: [ 235.716157][ T7167] dump_backtrace+0x0/0x458 [ 235.716168][ T7167] show_stack+0x2c/0x3c [ 235.716173][ T7167] __dump_stack+0x30/0x40 [ 235.716180][ T7167] dump_stack_lvl+0xf4/0x15c [ 235.716185][ T7167] dump_stack+0x1c/0x5c [ 235.716190][ T7167] sysfs_create_dir_ns+0x244/0x264 [ 235.716196][ T7167] kobject_add_internal+0x5ac/0xc3c [ 235.716201][ T7167] kobject_init_and_add+0x124/0x190 [ 235.716206][ T7167] gfs2_sys_fs_add+0x200/0x41c [ 235.716211][ T7167] gfs2_fill_super+0xddc/0x1a18 [ 235.716216][ T7167] get_tree_bdev+0x358/0x544 [ 235.716222][ T7167] gfs2_get_tree+0x54/0x1b4 [ 235.716226][ T7167] vfs_get_tree+0x90/0x274 [ 235.716231][ T7167] do_new_mount+0x228/0x810 [ 235.716236][ T7167] path_mount+0x5bc/0x1008 [ 235.716240][ T7167] __arm64_sys_mount+0x514/0x5f0 [ 235.716244][ T7167] invoke_syscall+0x98/0x2b0 [ 235.716250][ T7167] el0_svc_common+0x138/0x258 [ 235.716255][ T7167] do_el0_svc+0x58/0x13c [ 235.716260][ T7167] el0_svc+0x78/0x1d0 [ 235.716269][ T7167] el0t_64_sync_handler+0xcc/0xe4 [ 235.716275][ T7167] el0t_64_sync+0x1a0/0x1a4 [ 235.716286][ T7167] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.716295][ T7167] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.850633][ T7170] loop1: detected capacity change from 0 to 32768 [ 235.858261][ T7170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.859417][ T7170] CPU: 0 PID: 7170 Comm: syz.1.696 Not tainted syzkaller #0 [ 235.860590][ T7170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.862183][ T7170] Call trace: [ 235.862667][ T7170] dump_backtrace+0x0/0x458 [ 235.863361][ T7170] show_stack+0x2c/0x3c [ 235.864019][ T7170] __dump_stack+0x30/0x40 [ 235.864674][ T7170] dump_stack_lvl+0xf4/0x15c [ 235.865400][ T7170] dump_stack+0x1c/0x5c [ 235.866071][ T7170] sysfs_create_dir_ns+0x244/0x264 [ 235.866939][ T7170] kobject_add_internal+0x5ac/0xc3c [ 235.867830][ T7170] kobject_init_and_add+0x124/0x190 [ 235.868694][ T7170] gfs2_sys_fs_add+0x200/0x41c [ 235.869472][ T7170] gfs2_fill_super+0xddc/0x1a18 [ 235.870221][ T7170] get_tree_bdev+0x358/0x544 [ 235.870952][ T7170] gfs2_get_tree+0x54/0x1b4 [ 235.871667][ T7170] vfs_get_tree+0x90/0x274 [ 235.872414][ T7170] do_new_mount+0x228/0x810 [ 235.873102][ T7170] path_mount+0x5bc/0x1008 [ 235.873770][ T7170] __arm64_sys_mount+0x514/0x5f0 [ 235.874527][ T7170] invoke_syscall+0x98/0x2b0 [ 235.875255][ T7170] el0_svc_common+0x138/0x258 [ 235.875954][ T7170] do_el0_svc+0x58/0x13c [ 235.876579][ T7170] el0_svc+0x78/0x1d0 [ 235.877186][ T7170] el0t_64_sync_handler+0xcc/0xe4 [ 235.877881][ T7170] el0t_64_sync+0x1a0/0x1a4 [ 235.879868][ T7170] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.881867][ T7170] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.117414][ T7173] loop1: detected capacity change from 0 to 32768 [ 236.180523][ T7173] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.181631][ T7173] CPU: 0 PID: 7173 Comm: syz.1.697 Not tainted syzkaller #0 [ 236.182806][ T7173] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.184465][ T7173] Call trace: [ 236.185011][ T7173] dump_backtrace+0x0/0x458 [ 236.185734][ T7173] show_stack+0x2c/0x3c [ 236.186434][ T7173] __dump_stack+0x30/0x40 [ 236.187160][ T7173] dump_stack_lvl+0xf4/0x15c [ 236.187880][ T7173] dump_stack+0x1c/0x5c [ 236.188519][ T7173] sysfs_create_dir_ns+0x244/0x264 [ 236.189300][ T7173] kobject_add_internal+0x5ac/0xc3c [ 236.190046][ T7173] kobject_init_and_add+0x124/0x190 [ 236.190960][ T7173] gfs2_sys_fs_add+0x200/0x41c [ 236.191763][ T7173] gfs2_fill_super+0xddc/0x1a18 [ 236.192571][ T7173] get_tree_bdev+0x358/0x544 [ 236.193351][ T7173] gfs2_get_tree+0x54/0x1b4 [ 236.194072][ T7173] vfs_get_tree+0x90/0x274 [ 236.194784][ T7173] do_new_mount+0x228/0x810 [ 236.195564][ T7173] path_mount+0x5bc/0x1008 [ 236.196247][ T7173] __arm64_sys_mount+0x514/0x5f0 [ 236.197047][ T7173] invoke_syscall+0x98/0x2b0 [ 236.197794][ T7173] el0_svc_common+0x138/0x258 [ 236.198591][ T7173] do_el0_svc+0x58/0x13c [ 236.199378][ T7173] el0_svc+0x78/0x1d0 [ 236.200039][ T7173] el0t_64_sync_handler+0xcc/0xe4 [ 236.200874][ T7173] el0t_64_sync+0x1a0/0x1a4 [ 236.202942][ T7173] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.205125][ T7173] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.338149][ T7176] loop1: detected capacity change from 0 to 32768 [ 236.383870][ T7176] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.385504][ T7176] CPU: 1 PID: 7176 Comm: syz.1.698 Not tainted syzkaller #0 [ 236.386653][ T7176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.388256][ T7176] Call trace: [ 236.388781][ T7176] dump_backtrace+0x0/0x458 [ 236.389486][ T7176] show_stack+0x2c/0x3c [ 236.390133][ T7176] __dump_stack+0x30/0x40 [ 236.390809][ T7176] dump_stack_lvl+0xf4/0x15c [ 236.391549][ T7176] dump_stack+0x1c/0x5c [ 236.392196][ T7176] sysfs_create_dir_ns+0x244/0x264 [ 236.393049][ T7176] kobject_add_internal+0x5ac/0xc3c [ 236.393909][ T7176] kobject_init_and_add+0x124/0x190 [ 236.394711][ T7176] gfs2_sys_fs_add+0x200/0x41c [ 236.395496][ T7176] gfs2_fill_super+0xddc/0x1a18 [ 236.396321][ T7176] get_tree_bdev+0x358/0x544 [ 236.397072][ T7176] gfs2_get_tree+0x54/0x1b4 [ 236.397751][ T7176] vfs_get_tree+0x90/0x274 [ 236.398449][ T7176] do_new_mount+0x228/0x810 [ 236.399137][ T7176] path_mount+0x5bc/0x1008 [ 236.399862][ T7176] __arm64_sys_mount+0x514/0x5f0 [ 236.400654][ T7176] invoke_syscall+0x98/0x2b0 [ 236.401412][ T7176] el0_svc_common+0x138/0x258 [ 236.402151][ T7176] do_el0_svc+0x58/0x13c [ 236.402814][ T7176] el0_svc+0x78/0x1d0 [ 236.403432][ T7176] el0t_64_sync_handler+0xcc/0xe4 [ 236.404230][ T7176] el0t_64_sync+0x1a0/0x1a4 [ 236.406401][ T7176] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.408387][ T7176] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.537954][ T7179] loop1: detected capacity change from 0 to 32768 [ 236.575158][ T7179] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.576248][ T7179] CPU: 0 PID: 7179 Comm: syz.1.699 Not tainted syzkaller #0 [ 236.577417][ T7179] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.579041][ T7179] Call trace: [ 236.579543][ T7179] dump_backtrace+0x0/0x458 [ 236.580296][ T7179] show_stack+0x2c/0x3c [ 236.580959][ T7179] __dump_stack+0x30/0x40 [ 236.581656][ T7179] dump_stack_lvl+0xf4/0x15c [ 236.582410][ T7179] dump_stack+0x1c/0x5c [ 236.583034][ T7179] sysfs_create_dir_ns+0x244/0x264 [ 236.583886][ T7179] kobject_add_internal+0x5ac/0xc3c [ 236.584722][ T7179] kobject_init_and_add+0x124/0x190 [ 236.585557][ T7179] gfs2_sys_fs_add+0x200/0x41c [ 236.586336][ T7179] gfs2_fill_super+0xddc/0x1a18 [ 236.587161][ T7179] get_tree_bdev+0x358/0x544 [ 236.587938][ T7179] gfs2_get_tree+0x54/0x1b4 [ 236.588680][ T7179] vfs_get_tree+0x90/0x274 [ 236.589400][ T7179] do_new_mount+0x228/0x810 [ 236.590126][ T7179] path_mount+0x5bc/0x1008 [ 236.590864][ T7179] __arm64_sys_mount+0x514/0x5f0 [ 236.591625][ T7179] invoke_syscall+0x98/0x2b0 [ 236.592315][ T7179] el0_svc_common+0x138/0x258 [ 236.593055][ T7179] do_el0_svc+0x58/0x13c [ 236.593761][ T7179] el0_svc+0x78/0x1d0 [ 236.594405][ T7179] el0t_64_sync_handler+0xcc/0xe4 [ 236.595232][ T7179] el0t_64_sync+0x1a0/0x1a4 [ 236.597390][ T7179] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.599392][ T7179] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.727622][ T7182] loop1: detected capacity change from 0 to 32768 [ 236.775512][ T7182] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.776643][ T7182] CPU: 0 PID: 7182 Comm: syz.1.700 Not tainted syzkaller #0 [ 236.777860][ T7182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.779344][ T7182] Call trace: [ 236.779811][ T7182] dump_backtrace+0x0/0x458 [ 236.780453][ T7182] show_stack+0x2c/0x3c [ 236.781061][ T7182] __dump_stack+0x30/0x40 [ 236.781634][ T7182] dump_stack_lvl+0xf4/0x15c [ 236.782282][ T7182] dump_stack+0x1c/0x5c [ 236.782856][ T7182] sysfs_create_dir_ns+0x244/0x264 [ 236.783576][ T7182] kobject_add_internal+0x5ac/0xc3c [ 236.784403][ T7182] kobject_init_and_add+0x124/0x190 [ 236.785112][ T7182] gfs2_sys_fs_add+0x200/0x41c [ 236.785809][ T7182] gfs2_fill_super+0xddc/0x1a18 [ 236.786538][ T7182] get_tree_bdev+0x358/0x544 [ 236.787222][ T7182] gfs2_get_tree+0x54/0x1b4 [ 236.787917][ T7182] vfs_get_tree+0x90/0x274 [ 236.788665][ T7182] do_new_mount+0x228/0x810 [ 236.789384][ T7182] path_mount+0x5bc/0x1008 [ 236.790082][ T7182] __arm64_sys_mount+0x514/0x5f0 [ 236.790871][ T7182] invoke_syscall+0x98/0x2b0 [ 236.791597][ T7182] el0_svc_common+0x138/0x258 [ 236.792363][ T7182] do_el0_svc+0x58/0x13c [ 236.793043][ T7182] el0_svc+0x78/0x1d0 [ 236.793745][ T7182] el0t_64_sync_handler+0xcc/0xe4 [ 236.794568][ T7182] el0t_64_sync+0x1a0/0x1a4 [ 236.796745][ T7182] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.798751][ T7182] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.969718][ T7185] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.970885][ T7185] CPU: 1 PID: 7185 Comm: syz.1.701 Not tainted syzkaller #0 [ 236.971993][ T7185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.973496][ T7185] Call trace: [ 236.973945][ T7185] dump_backtrace+0x0/0x458 [ 236.974656][ T7185] show_stack+0x2c/0x3c [ 236.975317][ T7185] __dump_stack+0x30/0x40 [ 236.976064][ T7185] dump_stack_lvl+0xf4/0x15c [ 236.976849][ T7185] dump_stack+0x1c/0x5c [ 236.977525][ T7185] sysfs_create_dir_ns+0x244/0x264 [ 236.978378][ T7185] kobject_add_internal+0x5ac/0xc3c [ 236.979223][ T7185] kobject_init_and_add+0x124/0x190 [ 236.980073][ T7185] gfs2_sys_fs_add+0x200/0x41c [ 236.980787][ T7185] gfs2_fill_super+0xddc/0x1a18 [ 236.981562][ T7185] get_tree_bdev+0x358/0x544 [ 236.982299][ T7185] gfs2_get_tree+0x54/0x1b4 [ 236.983034][ T7185] vfs_get_tree+0x90/0x274 [ 236.983722][ T7185] do_new_mount+0x228/0x810 [ 236.984437][ T7185] path_mount+0x5bc/0x1008 [ 236.985102][ T7185] __arm64_sys_mount+0x514/0x5f0 [ 236.985920][ T7185] invoke_syscall+0x98/0x2b0 [ 236.986714][ T7185] el0_svc_common+0x138/0x258 [ 236.987484][ T7185] do_el0_svc+0x58/0x13c [ 236.988169][ T7185] el0_svc+0x78/0x1d0 [ 236.988788][ T7185] el0t_64_sync_handler+0xcc/0xe4 [ 236.989540][ T7185] el0t_64_sync+0x1a0/0x1a4 [ 236.990686][ T7185] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.992726][ T7185] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.158489][ T7188] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.159749][ T7188] CPU: 1 PID: 7188 Comm: syz.1.702 Not tainted syzkaller #0 [ 237.160931][ T7188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.162461][ T7188] Call trace: [ 237.162946][ T7188] dump_backtrace+0x0/0x458 [ 237.163664][ T7188] show_stack+0x2c/0x3c [ 237.164352][ T7188] __dump_stack+0x30/0x40 [ 237.165136][ T7188] dump_stack_lvl+0xf4/0x15c [ 237.165880][ T7188] dump_stack+0x1c/0x5c [ 237.166581][ T7188] sysfs_create_dir_ns+0x244/0x264 [ 237.167442][ T7188] kobject_add_internal+0x5ac/0xc3c [ 237.168326][ T7188] kobject_init_and_add+0x124/0x190 [ 237.169144][ T7188] gfs2_sys_fs_add+0x200/0x41c [ 237.169963][ T7188] gfs2_fill_super+0xddc/0x1a18 [ 237.170760][ T7188] get_tree_bdev+0x358/0x544 [ 237.171515][ T7188] gfs2_get_tree+0x54/0x1b4 [ 237.172245][ T7188] vfs_get_tree+0x90/0x274 [ 237.172969][ T7188] do_new_mount+0x228/0x810 [ 237.173703][ T7188] path_mount+0x5bc/0x1008 [ 237.174463][ T7188] __arm64_sys_mount+0x514/0x5f0 [ 237.175238][ T7188] invoke_syscall+0x98/0x2b0 [ 237.176027][ T7188] el0_svc_common+0x138/0x258 [ 237.176792][ T7188] do_el0_svc+0x58/0x13c [ 237.177489][ T7188] el0_svc+0x78/0x1d0 [ 237.178076][ T7188] el0t_64_sync_handler+0xcc/0xe4 [ 237.178939][ T7188] el0t_64_sync+0x1a0/0x1a4 [ 237.180319][ T7188] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.182633][ T7188] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.449613][ T7191] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.450737][ T7191] CPU: 0 PID: 7191 Comm: syz.1.703 Not tainted syzkaller #0 [ 237.451970][ T7191] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.453491][ T7191] Call trace: [ 237.453965][ T7191] dump_backtrace+0x0/0x458 [ 237.454707][ T7191] show_stack+0x2c/0x3c [ 237.455403][ T7191] __dump_stack+0x30/0x40 [ 237.456143][ T7191] dump_stack_lvl+0xf4/0x15c [ 237.456877][ T7191] dump_stack+0x1c/0x5c [ 237.457543][ T7191] sysfs_create_dir_ns+0x244/0x264 [ 237.458350][ T7191] kobject_add_internal+0x5ac/0xc3c [ 237.459169][ T7191] kobject_init_and_add+0x124/0x190 [ 237.459957][ T7191] gfs2_sys_fs_add+0x200/0x41c [ 237.460641][ T7191] gfs2_fill_super+0xddc/0x1a18 [ 237.461351][ T7191] get_tree_bdev+0x358/0x544 [ 237.462057][ T7191] gfs2_get_tree+0x54/0x1b4 [ 237.462824][ T7191] vfs_get_tree+0x90/0x274 [ 237.463552][ T7191] do_new_mount+0x228/0x810 [ 237.464303][ T7191] path_mount+0x5bc/0x1008 [ 237.465012][ T7191] __arm64_sys_mount+0x514/0x5f0 [ 237.465811][ T7191] invoke_syscall+0x98/0x2b0 [ 237.466563][ T7191] el0_svc_common+0x138/0x258 [ 237.467316][ T7191] do_el0_svc+0x58/0x13c [ 237.468044][ T7191] el0_svc+0x78/0x1d0 [ 237.468682][ T7191] el0t_64_sync_handler+0xcc/0xe4 [ 237.469512][ T7191] el0t_64_sync+0x1a0/0x1a4 [ 237.471774][ T7191] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.473793][ T7191] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.645141][ T7194] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.646296][ T7194] CPU: 1 PID: 7194 Comm: syz.1.704 Not tainted syzkaller #0 [ 237.647384][ T7194] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.648982][ T7194] Call trace: [ 237.649491][ T7194] dump_backtrace+0x0/0x458 [ 237.650186][ T7194] show_stack+0x2c/0x3c [ 237.650817][ T7194] __dump_stack+0x30/0x40 [ 237.651573][ T7194] dump_stack_lvl+0xf4/0x15c [ 237.652294][ T7194] dump_stack+0x1c/0x5c [ 237.652901][ T7194] sysfs_create_dir_ns+0x244/0x264 [ 237.653719][ T7194] kobject_add_internal+0x5ac/0xc3c [ 237.654578][ T7194] kobject_init_and_add+0x124/0x190 [ 237.655387][ T7194] gfs2_sys_fs_add+0x200/0x41c [ 237.656133][ T7194] gfs2_fill_super+0xddc/0x1a18 [ 237.656846][ T7194] get_tree_bdev+0x358/0x544 [ 237.657555][ T7194] gfs2_get_tree+0x54/0x1b4 [ 237.658258][ T7194] vfs_get_tree+0x90/0x274 [ 237.658923][ T7194] do_new_mount+0x228/0x810 [ 237.659604][ T7194] path_mount+0x5bc/0x1008 [ 237.660246][ T7194] __arm64_sys_mount+0x514/0x5f0 [ 237.661067][ T7194] invoke_syscall+0x98/0x2b0 [ 237.661824][ T7194] el0_svc_common+0x138/0x258 [ 237.662556][ T7194] do_el0_svc+0x58/0x13c [ 237.663247][ T7194] el0_svc+0x78/0x1d0 [ 237.663869][ T7194] el0t_64_sync_handler+0xcc/0xe4 [ 237.664706][ T7194] el0t_64_sync+0x1a0/0x1a4 [ 237.668642][ T7194] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.670727][ T7194] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 237.815554][ T7197] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 237.816732][ T7197] CPU: 0 PID: 7197 Comm: syz.1.705 Not tainted syzkaller #0 [ 237.817929][ T7197] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 237.819447][ T7197] Call trace: [ 237.819964][ T7197] dump_backtrace+0x0/0x458 [ 237.820657][ T7197] show_stack+0x2c/0x3c [ 237.821303][ T7197] __dump_stack+0x30/0x40 [ 237.821940][ T7197] dump_stack_lvl+0xf4/0x15c [ 237.822667][ T7197] dump_stack+0x1c/0x5c [ 237.823271][ T7197] sysfs_create_dir_ns+0x244/0x264 [ 237.824092][ T7197] kobject_add_internal+0x5ac/0xc3c [ 237.824826][ T7197] kobject_init_and_add+0x124/0x190 [ 237.825582][ T7197] gfs2_sys_fs_add+0x200/0x41c [ 237.826278][ T7197] gfs2_fill_super+0xddc/0x1a18 [ 237.826971][ T7197] get_tree_bdev+0x358/0x544 [ 237.827657][ T7197] gfs2_get_tree+0x54/0x1b4 [ 237.828316][ T7197] vfs_get_tree+0x90/0x274 [ 237.829031][ T7197] do_new_mount+0x228/0x810 [ 237.829725][ T7197] path_mount+0x5bc/0x1008 [ 237.830500][ T7197] __arm64_sys_mount+0x514/0x5f0 [ 237.831320][ T7197] invoke_syscall+0x98/0x2b0 [ 237.832078][ T7197] el0_svc_common+0x138/0x258 [ 237.832826][ T7197] do_el0_svc+0x58/0x13c [ 237.833481][ T7197] el0_svc+0x78/0x1d0 [ 237.834063][ T7197] el0t_64_sync_handler+0xcc/0xe4 [ 237.834837][ T7197] el0t_64_sync+0x1a0/0x1a4 [ 237.838353][ T7197] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 237.840360][ T7197] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.013326][ T7200] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.014610][ T7200] CPU: 0 PID: 7200 Comm: syz.1.706 Not tainted syzkaller #0 [ 238.015692][ T7200] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.017100][ T7200] Call trace: [ 238.017652][ T7200] dump_backtrace+0x0/0x458 [ 238.018386][ T7200] show_stack+0x2c/0x3c [ 238.019052][ T7200] __dump_stack+0x30/0x40 [ 238.019748][ T7200] dump_stack_lvl+0xf4/0x15c [ 238.020494][ T7200] dump_stack+0x1c/0x5c [ 238.021161][ T7200] sysfs_create_dir_ns+0x244/0x264 [ 238.021952][ T7200] kobject_add_internal+0x5ac/0xc3c [ 238.022804][ T7200] kobject_init_and_add+0x124/0x190 [ 238.023633][ T7200] gfs2_sys_fs_add+0x200/0x41c [ 238.024368][ T7200] gfs2_fill_super+0xddc/0x1a18 [ 238.025158][ T7200] get_tree_bdev+0x358/0x544 [ 238.025834][ T7200] gfs2_get_tree+0x54/0x1b4 [ 238.026525][ T7200] vfs_get_tree+0x90/0x274 [ 238.027283][ T7200] do_new_mount+0x228/0x810 [ 238.028011][ T7200] path_mount+0x5bc/0x1008 [ 238.028740][ T7200] __arm64_sys_mount+0x514/0x5f0 [ 238.029513][ T7200] invoke_syscall+0x98/0x2b0 [ 238.030231][ T7200] el0_svc_common+0x138/0x258 [ 238.030989][ T7200] do_el0_svc+0x58/0x13c [ 238.031591][ T7200] el0_svc+0x78/0x1d0 [ 238.032209][ T7200] el0t_64_sync_handler+0xcc/0xe4 [ 238.033012][ T7200] el0t_64_sync+0x1a0/0x1a4 [ 238.039111][ T7200] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.041014][ T7200] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.215584][ T7203] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.216770][ T7203] CPU: 1 PID: 7203 Comm: syz.1.707 Not tainted syzkaller #0 [ 238.217913][ T7203] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.219547][ T7203] Call trace: [ 238.220046][ T7203] dump_backtrace+0x0/0x458 [ 238.220737][ T7203] show_stack+0x2c/0x3c [ 238.221399][ T7203] __dump_stack+0x30/0x40 [ 238.222129][ T7203] dump_stack_lvl+0xf4/0x15c [ 238.222811][ T7203] dump_stack+0x1c/0x5c [ 238.223496][ T7203] sysfs_create_dir_ns+0x244/0x264 [ 238.224314][ T7203] kobject_add_internal+0x5ac/0xc3c [ 238.225132][ T7203] kobject_init_and_add+0x124/0x190 [ 238.225953][ T7203] gfs2_sys_fs_add+0x200/0x41c [ 238.226799][ T7203] gfs2_fill_super+0xddc/0x1a18 [ 238.227641][ T7203] get_tree_bdev+0x358/0x544 [ 238.228419][ T7203] gfs2_get_tree+0x54/0x1b4 [ 238.229185][ T7203] vfs_get_tree+0x90/0x274 [ 238.229939][ T7203] do_new_mount+0x228/0x810 [ 238.230703][ T7203] path_mount+0x5bc/0x1008 [ 238.231410][ T7203] __arm64_sys_mount+0x514/0x5f0 [ 238.232176][ T7203] invoke_syscall+0x98/0x2b0 [ 238.232881][ T7203] el0_svc_common+0x138/0x258 [ 238.233595][ T7203] do_el0_svc+0x58/0x13c [ 238.234248][ T7203] el0_svc+0x78/0x1d0 [ 238.234831][ T7203] el0t_64_sync_handler+0xcc/0xe4 [ 238.235576][ T7203] el0t_64_sync+0x1a0/0x1a4 [ 238.237905][ T7203] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.240073][ T7203] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.405504][ T7206] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.406621][ T7206] CPU: 1 PID: 7206 Comm: syz.1.708 Not tainted syzkaller #0 [ 238.407696][ T7206] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.409256][ T7206] Call trace: [ 238.409771][ T7206] dump_backtrace+0x0/0x458 [ 238.410498][ T7206] show_stack+0x2c/0x3c [ 238.411188][ T7206] __dump_stack+0x30/0x40 [ 238.411937][ T7206] dump_stack_lvl+0xf4/0x15c [ 238.412725][ T7206] dump_stack+0x1c/0x5c [ 238.413434][ T7206] sysfs_create_dir_ns+0x244/0x264 [ 238.414271][ T7206] kobject_add_internal+0x5ac/0xc3c [ 238.415078][ T7206] kobject_init_and_add+0x124/0x190 [ 238.415883][ T7206] gfs2_sys_fs_add+0x200/0x41c [ 238.416588][ T7206] gfs2_fill_super+0xddc/0x1a18 [ 238.417444][ T7206] get_tree_bdev+0x358/0x544 [ 238.418214][ T7206] gfs2_get_tree+0x54/0x1b4 [ 238.418941][ T7206] vfs_get_tree+0x90/0x274 [ 238.419623][ T7206] do_new_mount+0x228/0x810 [ 238.420328][ T7206] path_mount+0x5bc/0x1008 [ 238.421043][ T7206] __arm64_sys_mount+0x514/0x5f0 [ 238.421839][ T7206] invoke_syscall+0x98/0x2b0 [ 238.422569][ T7206] el0_svc_common+0x138/0x258 [ 238.423257][ T7206] do_el0_svc+0x58/0x13c [ 238.423882][ T7206] el0_svc+0x78/0x1d0 [ 238.424475][ T7206] el0t_64_sync_handler+0xcc/0xe4 [ 238.425181][ T7206] el0t_64_sync+0x1a0/0x1a4 [ 238.428134][ T7206] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.430078][ T7206] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.570916][ T7209] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 238.572135][ T7209] CPU: 0 PID: 7209 Comm: syz.1.709 Not tainted syzkaller #0 [ 238.573283][ T7209] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.574992][ T7209] Call trace: [ 238.575490][ T7209] dump_backtrace+0x0/0x458 [ 238.576181][ T7209] show_stack+0x2c/0x3c [ 238.576906][ T7209] __dump_stack+0x30/0x40 [ 238.577647][ T7209] dump_stack_lvl+0xf4/0x15c [ 238.578363][ T7209] dump_stack+0x1c/0x5c [ 238.579017][ T7209] sysfs_create_dir_ns+0x244/0x264 [ 238.579762][ T7209] kobject_add_internal+0x5ac/0xc3c [ 238.580495][ T7209] kobject_init_and_add+0x124/0x190 [ 238.581336][ T7209] gfs2_sys_fs_add+0x200/0x41c [ 238.582108][ T7209] gfs2_fill_super+0xddc/0x1a18 [ 238.582900][ T7209] get_tree_bdev+0x358/0x544 [ 238.583634][ T7209] gfs2_get_tree+0x54/0x1b4 [ 238.584315][ T7209] vfs_get_tree+0x90/0x274 [ 238.584952][ T7209] do_new_mount+0x228/0x810 [ 238.585646][ T7209] path_mount+0x5bc/0x1008 [ 238.586398][ T7209] __arm64_sys_mount+0x514/0x5f0 [ 238.587216][ T7209] invoke_syscall+0x98/0x2b0 [ 238.587953][ T7209] el0_svc_common+0x138/0x258 [ 238.588683][ T7209] do_el0_svc+0x58/0x13c [ 238.589357][ T7209] el0_svc+0x78/0x1d0 [ 238.589937][ T7209] el0t_64_sync_handler+0xcc/0xe4 [ 238.590756][ T7209] el0t_64_sync+0x1a0/0x1a4 [ 238.591684][ T7209] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 238.593693][ T7209] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 238.594180][ T27] INFO: task syz-executor:4962 blocked for more than 143 seconds. [ 238.596013][ T27] Not tainted syzkaller #0 [ 238.596756][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 238.597970][ T27] task:syz-executor state:D stack: 0 pid: 4962 ppid: 1 flags:0x00000001 [ 238.599455][ T27] Call trace: [ 238.600004][ T27] __switch_to+0x2f4/0x540 [ 238.600715][ T27] __schedule+0xdfc/0x1bc4 [ 238.601378][ T27] schedule+0x11c/0x1c8 [ 238.602067][ T27] bit_wait+0x1c/0xac [ 238.602786][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 238.603663][ T27] gfs2_glock_nq+0x8f8/0x1404 [ 238.610098][ T27] __gfs2_lookup+0x120/0x28c [ 238.611762][ T27] gfs2_lookup+0x2c/0x3c [ 238.612446][ T27] __lookup_slow+0x25c/0x39c [ 238.613163][ T27] lookup_slow+0x5c/0x80 [ 238.613813][ T27] walk_component+0x2b0/0x3a8 [ 238.614816][ T27] path_lookupat+0x13c/0x3d0 [ 238.615558][ T27] filename_lookup+0x1b4/0x464 [ 238.616519][ T27] user_path_at_empty+0x5c/0x1a0 [ 238.617274][ T27] __arm64_sys_umount+0xf8/0x184 [ 238.618062][ T27] invoke_syscall+0x98/0x2b0 [ 238.618778][ T27] el0_svc_common+0x138/0x258 [ 238.619521][ T27] do_el0_svc+0x58/0x13c [ 238.620209][ T27] el0_svc+0x78/0x1d0 [ 238.620865][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 238.621650][ T27] el0t_64_sync+0x1a0/0x1a4 [ 238.622394][ T27] [ 238.622394][ T27] Showing all locks held in the system: [ 238.623595][ T27] 1 lock held by khungtaskd/27: [ 238.624464][ T27] #0: ffff800014471360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 238.625967][ T27] 2 locks held by getty/3804: [ 238.626689][ T27] #0: ffff0000d4f08098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 238.628290][ T27] #1: ffff80001be7e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 238.629967][ T27] 1 lock held by syz-executor/4962: [ 238.630788][ T27] #0: ffff0000ec078818 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x4c/0x80 [ 238.632256][ T27] 2 locks held by udevd/5101: [ 238.632939][ T27] #0: ffff0000cbf36918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6ac [ 238.634764][ T27] #1: ffff0000cbf88468 (&lo->lo_mutex){+.+.}-{3:3}, at: __loop_clr_fd+0xa4/0x978 [ 238.636152][ T27] 3 locks held by syz.1.710/7212: [ 238.637030][ T27] [ 238.637455][ T27] ============================================= [ 238.637455][ T27] [ 238.638771][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 238.639808][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 238.640964][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 238.642531][ T27] Call trace: [ 238.643026][ T27] dump_backtrace+0x0/0x458 [ 238.643738][ T27] show_stack+0x2c/0x3c [ 238.644367][ T27] __dump_stack+0x30/0x40 [ 238.645083][ T27] dump_stack_lvl+0xf4/0x15c [ 238.645871][ T27] dump_stack+0x1c/0x5c [ 238.646530][ T27] panic+0x2fc/0x860 [ 238.647145][ T27] hung_task_panic+0x0/0x2c [ 238.647881][ T27] kthread+0x374/0x454 [ 238.648529][ T27] ret_from_fork+0x10/0x20 [ 238.649236][ T27] SMP: stopping secondary CPUs [ 238.650018][ T27] Kernel Offset: disabled [ 238.650703][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 238.651570][ T27] Memory Limit: none [ 238.990987][ T27] Rebooting in 86400 seconds..