.772852][ T6231] CPU: 0 PID: 6231 Comm: syz.1.625 Not tainted syzkaller #0 [ 215.773989][ T6231] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 215.775604][ T6231] Call trace: [ 215.776135][ T6231] dump_backtrace+0x0/0x458 [ 215.776949][ T6231] show_stack+0x2c/0x3c [ 215.777680][ T6231] __dump_stack+0x30/0x40 [ 215.778438][ T6231] dump_stack_lvl+0xf4/0x15c [ 215.779258][ T6231] dump_stack+0x1c/0x5c [ 215.779997][ T6231] sysfs_create_dir_ns+0x244/0x264 [ 215.780903][ T6231] kobject_add_internal+0x5ac/0xc3c [ 215.781812][ T6231] kobject_init_and_add+0x124/0x190 [ 215.782764][ T6231] gfs2_sys_fs_add+0x200/0x41c [ 215.783577][ T6231] gfs2_fill_super+0xddc/0x1a18 [ 215.784411][ T6231] get_tree_bdev+0x358/0x544 [ 215.785173][ T6231] gfs2_get_tree+0x54/0x1b4 [ 215.785943][ T6231] vfs_get_tree+0x90/0x274 [ 215.786660][ T6231] do_new_mount+0x228/0x810 [ 215.787470][ T6231] path_mount+0x5bc/0x1008 [ 215.788242][ T6231] __arm64_sys_mount+0x514/0x5f0 [ 215.789136][ T6231] invoke_syscall+0x98/0x2b0 [ 215.789911][ T6231] el0_svc_common+0x138/0x258 [ 215.790691][ T6231] do_el0_svc+0x58/0x13c [ 215.791447][ T6231] el0_svc+0x78/0x1d0 [ 215.792042][ T6231] el0t_64_sync_handler+0xcc/0xe4 [ 215.792821][ T6231] el0t_64_sync+0x1a0/0x1a4 [ 215.795262][ T6231] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.797208][ T6231] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.037605][ T6233] loop1: detected capacity change from 0 to 32768 [ 216.092370][ T6233] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.093614][ T6233] CPU: 1 PID: 6233 Comm: syz.1.626 Not tainted syzkaller #0 [ 216.094815][ T6233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.096442][ T6233] Call trace: [ 216.096974][ T6233] dump_backtrace+0x0/0x458 [ 216.097670][ T6233] show_stack+0x2c/0x3c [ 216.098336][ T6233] __dump_stack+0x30/0x40 [ 216.099131][ T6233] dump_stack_lvl+0xf4/0x15c [ 216.099898][ T6233] dump_stack+0x1c/0x5c [ 216.100558][ T6233] sysfs_create_dir_ns+0x244/0x264 [ 216.101401][ T6233] kobject_add_internal+0x5ac/0xc3c [ 216.102252][ T6233] kobject_init_and_add+0x124/0x190 [ 216.103112][ T6233] gfs2_sys_fs_add+0x200/0x41c [ 216.103890][ T6233] gfs2_fill_super+0xddc/0x1a18 [ 216.104608][ T6233] get_tree_bdev+0x358/0x544 [ 216.105423][ T6233] gfs2_get_tree+0x54/0x1b4 [ 216.106159][ T6233] vfs_get_tree+0x90/0x274 [ 216.106859][ T6233] do_new_mount+0x228/0x810 [ 216.107643][ T6233] path_mount+0x5bc/0x1008 [ 216.108397][ T6233] __arm64_sys_mount+0x514/0x5f0 [ 216.109222][ T6233] invoke_syscall+0x98/0x2b0 [ 216.109940][ T6233] el0_svc_common+0x138/0x258 [ 216.110662][ T6233] do_el0_svc+0x58/0x13c [ 216.111268][ T6233] el0_svc+0x78/0x1d0 [ 216.111844][ T6233] el0t_64_sync_handler+0xcc/0xe4 [ 216.112589][ T6233] el0t_64_sync+0x1a0/0x1a4 [ 216.116971][ T6233] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.119070][ T6233] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.257257][ T6235] loop1: detected capacity change from 0 to 32768 [ 216.368514][ T6235] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.369788][ T6235] CPU: 1 PID: 6235 Comm: syz.1.627 Not tainted syzkaller #0 [ 216.371087][ T6235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.372691][ T6235] Call trace: [ 216.373233][ T6235] dump_backtrace+0x0/0x458 [ 216.374002][ T6235] show_stack+0x2c/0x3c [ 216.374660][ T6235] __dump_stack+0x30/0x40 [ 216.375418][ T6235] dump_stack_lvl+0xf4/0x15c [ 216.376154][ T6235] dump_stack+0x1c/0x5c [ 216.376815][ T6235] sysfs_create_dir_ns+0x244/0x264 [ 216.377655][ T6235] kobject_add_internal+0x5ac/0xc3c [ 216.378554][ T6235] kobject_init_and_add+0x124/0x190 [ 216.379361][ T6235] gfs2_sys_fs_add+0x200/0x41c [ 216.380185][ T6235] gfs2_fill_super+0xddc/0x1a18 [ 216.380997][ T6235] get_tree_bdev+0x358/0x544 [ 216.381751][ T6235] gfs2_get_tree+0x54/0x1b4 [ 216.382397][ T6235] vfs_get_tree+0x90/0x274 [ 216.383111][ T6235] do_new_mount+0x228/0x810 [ 216.383912][ T6235] path_mount+0x5bc/0x1008 [ 216.384651][ T6235] __arm64_sys_mount+0x514/0x5f0 [ 216.385423][ T6235] invoke_syscall+0x98/0x2b0 [ 216.386120][ T6235] el0_svc_common+0x138/0x258 [ 216.386886][ T6235] do_el0_svc+0x58/0x13c [ 216.387555][ T6235] el0_svc+0x78/0x1d0 [ 216.388210][ T6235] el0t_64_sync_handler+0xcc/0xe4 [ 216.389091][ T6235] el0t_64_sync+0x1a0/0x1a4 [ 216.391762][ T6235] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.393932][ T6235] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.640208][ T6237] loop1: detected capacity change from 0 to 32768 [ 216.681949][ T6237] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.683209][ T6237] CPU: 0 PID: 6237 Comm: syz.1.628 Not tainted syzkaller #0 [ 216.684347][ T6237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.686220][ T6237] Call trace: [ 216.686824][ T6237] dump_backtrace+0x0/0x458 [ 216.687654][ T6237] show_stack+0x2c/0x3c [ 216.688337][ T6237] __dump_stack+0x30/0x40 [ 216.689062][ T6237] dump_stack_lvl+0xf4/0x15c [ 216.689837][ T6237] dump_stack+0x1c/0x5c [ 216.690524][ T6237] sysfs_create_dir_ns+0x244/0x264 [ 216.691374][ T6237] kobject_add_internal+0x5ac/0xc3c [ 216.692238][ T6237] kobject_init_and_add+0x124/0x190 [ 216.693040][ T6237] gfs2_sys_fs_add+0x200/0x41c [ 216.693805][ T6237] gfs2_fill_super+0xddc/0x1a18 [ 216.694595][ T6237] get_tree_bdev+0x358/0x544 [ 216.695446][ T6237] gfs2_get_tree+0x54/0x1b4 [ 216.696243][ T6237] vfs_get_tree+0x90/0x274 [ 216.696992][ T6237] do_new_mount+0x228/0x810 [ 216.697712][ T6237] path_mount+0x5bc/0x1008 [ 216.698411][ T6237] __arm64_sys_mount+0x514/0x5f0 [ 216.699173][ T6237] invoke_syscall+0x98/0x2b0 [ 216.700004][ T6237] el0_svc_common+0x138/0x258 [ 216.700786][ T6237] do_el0_svc+0x58/0x13c [ 216.701459][ T6237] el0_svc+0x78/0x1d0 [ 216.702185][ T6237] el0t_64_sync_handler+0xcc/0xe4 [ 216.702970][ T6237] el0t_64_sync+0x1a0/0x1a4 [ 216.705011][ T6237] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.707271][ T6237] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.808680][ T4101] Bluetooth: hci2: command 0x041b tx timeout [ 216.931946][ T6239] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.933137][ T6239] CPU: 1 PID: 6239 Comm: syz.1.629 Not tainted syzkaller #0 [ 216.934277][ T6239] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 216.935760][ T6239] Call trace: [ 216.936223][ T6239] dump_backtrace+0x0/0x458 [ 216.936924][ T6239] show_stack+0x2c/0x3c [ 216.937604][ T6239] __dump_stack+0x30/0x40 [ 216.938288][ T6239] dump_stack_lvl+0xf4/0x15c [ 216.938995][ T6239] dump_stack+0x1c/0x5c [ 216.939734][ T6239] sysfs_create_dir_ns+0x244/0x264 [ 216.940600][ T6239] kobject_add_internal+0x5ac/0xc3c [ 216.941479][ T6239] kobject_init_and_add+0x124/0x190 [ 216.942398][ T6239] gfs2_sys_fs_add+0x200/0x41c [ 216.943191][ T6239] gfs2_fill_super+0xddc/0x1a18 [ 216.943997][ T6239] get_tree_bdev+0x358/0x544 [ 216.944796][ T6239] gfs2_get_tree+0x54/0x1b4 [ 216.945540][ T6239] vfs_get_tree+0x90/0x274 [ 216.946307][ T6239] do_new_mount+0x228/0x810 [ 216.947053][ T6239] path_mount+0x5bc/0x1008 [ 216.947763][ T6239] __arm64_sys_mount+0x514/0x5f0 [ 216.948578][ T6239] invoke_syscall+0x98/0x2b0 [ 216.949397][ T6239] el0_svc_common+0x138/0x258 [ 216.950237][ T6239] do_el0_svc+0x58/0x13c [ 216.950994][ T6239] el0_svc+0x78/0x1d0 [ 216.951710][ T6239] el0t_64_sync_handler+0xcc/0xe4 [ 216.952540][ T6239] el0t_64_sync+0x1a0/0x1a4 [ 216.953714][ T6239] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.955697][ T6239] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.135997][ T6241] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.137433][ T6241] CPU: 0 PID: 6241 Comm: syz.1.630 Not tainted syzkaller #0 [ 217.138692][ T6241] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.140338][ T6241] Call trace: [ 217.140885][ T6241] dump_backtrace+0x0/0x458 [ 217.141708][ T6241] show_stack+0x2c/0x3c [ 217.142404][ T6241] __dump_stack+0x30/0x40 [ 217.143158][ T6241] dump_stack_lvl+0xf4/0x15c [ 217.143950][ T6241] dump_stack+0x1c/0x5c [ 217.144632][ T6241] sysfs_create_dir_ns+0x244/0x264 [ 217.145544][ T6241] kobject_add_internal+0x5ac/0xc3c [ 217.146394][ T6241] kobject_init_and_add+0x124/0x190 [ 217.147267][ T6241] gfs2_sys_fs_add+0x200/0x41c [ 217.148040][ T6241] gfs2_fill_super+0xddc/0x1a18 [ 217.148879][ T6241] get_tree_bdev+0x358/0x544 [ 217.149703][ T6241] gfs2_get_tree+0x54/0x1b4 [ 217.150491][ T6241] vfs_get_tree+0x90/0x274 [ 217.151225][ T6241] do_new_mount+0x228/0x810 [ 217.151979][ T6241] path_mount+0x5bc/0x1008 [ 217.152687][ T6241] __arm64_sys_mount+0x514/0x5f0 [ 217.153520][ T6241] invoke_syscall+0x98/0x2b0 [ 217.154269][ T6241] el0_svc_common+0x138/0x258 [ 217.155122][ T6241] do_el0_svc+0x58/0x13c [ 217.155888][ T6241] el0_svc+0x78/0x1d0 [ 217.156566][ T6241] el0t_64_sync_handler+0xcc/0xe4 [ 217.157421][ T6241] el0t_64_sync+0x1a0/0x1a4 [ 217.158286][ T6241] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.160353][ T6241] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.328637][ T6243] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.329960][ T6243] CPU: 1 PID: 6243 Comm: syz.1.631 Not tainted syzkaller #0 [ 217.331111][ T6243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.332795][ T6243] Call trace: [ 217.333283][ T6243] dump_backtrace+0x0/0x458 [ 217.333973][ T6243] show_stack+0x2c/0x3c [ 217.334644][ T6243] __dump_stack+0x30/0x40 [ 217.335295][ T6243] dump_stack_lvl+0xf4/0x15c [ 217.336023][ T6243] dump_stack+0x1c/0x5c [ 217.336756][ T6243] sysfs_create_dir_ns+0x244/0x264 [ 217.337616][ T6243] kobject_add_internal+0x5ac/0xc3c [ 217.338502][ T6243] kobject_init_and_add+0x124/0x190 [ 217.339408][ T6243] gfs2_sys_fs_add+0x200/0x41c [ 217.340257][ T6243] gfs2_fill_super+0xddc/0x1a18 [ 217.341139][ T6243] get_tree_bdev+0x358/0x544 [ 217.341830][ T6243] gfs2_get_tree+0x54/0x1b4 [ 217.342503][ T6243] vfs_get_tree+0x90/0x274 [ 217.343180][ T6243] do_new_mount+0x228/0x810 [ 217.343819][ T6243] path_mount+0x5bc/0x1008 [ 217.344459][ T6243] __arm64_sys_mount+0x514/0x5f0 [ 217.345213][ T6243] invoke_syscall+0x98/0x2b0 [ 217.345962][ T6243] el0_svc_common+0x138/0x258 [ 217.346747][ T6243] do_el0_svc+0x58/0x13c [ 217.347472][ T6243] el0_svc+0x78/0x1d0 [ 217.348251][ T6243] el0t_64_sync_handler+0xcc/0xe4 [ 217.349061][ T6243] el0t_64_sync+0x1a0/0x1a4 [ 217.351206][ T6243] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.353215][ T6243] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.562173][ T6245] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.563399][ T6245] CPU: 0 PID: 6245 Comm: syz.1.632 Not tainted syzkaller #0 [ 217.564657][ T6245] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.566401][ T6245] Call trace: [ 217.567045][ T6245] dump_backtrace+0x0/0x458 [ 217.567792][ T6245] show_stack+0x2c/0x3c [ 217.568512][ T6245] __dump_stack+0x30/0x40 [ 217.569263][ T6245] dump_stack_lvl+0xf4/0x15c [ 217.569981][ T6245] dump_stack+0x1c/0x5c [ 217.570632][ T6245] sysfs_create_dir_ns+0x244/0x264 [ 217.571504][ T6245] kobject_add_internal+0x5ac/0xc3c [ 217.572365][ T6245] kobject_init_and_add+0x124/0x190 [ 217.573236][ T6245] gfs2_sys_fs_add+0x200/0x41c [ 217.574042][ T6245] gfs2_fill_super+0xddc/0x1a18 [ 217.574897][ T6245] get_tree_bdev+0x358/0x544 [ 217.575675][ T6245] gfs2_get_tree+0x54/0x1b4 [ 217.576389][ T6245] vfs_get_tree+0x90/0x274 [ 217.577079][ T6245] do_new_mount+0x228/0x810 [ 217.577832][ T6245] path_mount+0x5bc/0x1008 [ 217.578602][ T6245] __arm64_sys_mount+0x514/0x5f0 [ 217.579428][ T6245] invoke_syscall+0x98/0x2b0 [ 217.580228][ T6245] el0_svc_common+0x138/0x258 [ 217.580998][ T6245] do_el0_svc+0x58/0x13c [ 217.581694][ T6245] el0_svc+0x78/0x1d0 [ 217.582313][ T6245] el0t_64_sync_handler+0xcc/0xe4 [ 217.583106][ T6245] el0t_64_sync+0x1a0/0x1a4 [ 217.584090][ T6245] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.586346][ T6245] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.726966][ T6247] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.728391][ T6247] CPU: 1 PID: 6247 Comm: syz.1.633 Not tainted syzkaller #0 [ 217.729550][ T6247] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.731166][ T6247] Call trace: [ 217.731635][ T6247] dump_backtrace+0x0/0x458 [ 217.732474][ T6247] show_stack+0x2c/0x3c [ 217.733141][ T6247] __dump_stack+0x30/0x40 [ 217.733815][ T6247] dump_stack_lvl+0xf4/0x15c [ 217.734609][ T6247] dump_stack+0x1c/0x5c [ 217.735345][ T6247] sysfs_create_dir_ns+0x244/0x264 [ 217.736165][ T6247] kobject_add_internal+0x5ac/0xc3c [ 217.737001][ T6247] kobject_init_and_add+0x124/0x190 [ 217.737835][ T6247] gfs2_sys_fs_add+0x200/0x41c [ 217.738584][ T6247] gfs2_fill_super+0xddc/0x1a18 [ 217.739304][ T6247] get_tree_bdev+0x358/0x544 [ 217.739968][ T6247] gfs2_get_tree+0x54/0x1b4 [ 217.740661][ T6247] vfs_get_tree+0x90/0x274 [ 217.741356][ T6247] do_new_mount+0x228/0x810 [ 217.742099][ T6247] path_mount+0x5bc/0x1008 [ 217.742760][ T6247] __arm64_sys_mount+0x514/0x5f0 [ 217.743505][ T6247] invoke_syscall+0x98/0x2b0 [ 217.744276][ T6247] el0_svc_common+0x138/0x258 [ 217.745012][ T6247] do_el0_svc+0x58/0x13c [ 217.745752][ T6247] el0_svc+0x78/0x1d0 [ 217.746442][ T6247] el0t_64_sync_handler+0xcc/0xe4 [ 217.747281][ T6247] el0t_64_sync+0x1a0/0x1a4 [ 217.748844][ T6247] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.750757][ T6247] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.958610][ T6249] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.959814][ T6249] CPU: 0 PID: 6249 Comm: syz.1.634 Not tainted syzkaller #0 [ 217.961167][ T6249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 217.962851][ T6249] Call trace: [ 217.963369][ T6249] dump_backtrace+0x0/0x458 [ 217.964124][ T6249] show_stack+0x2c/0x3c [ 217.964828][ T6249] __dump_stack+0x30/0x40 [ 217.965533][ T6249] dump_stack_lvl+0xf4/0x15c [ 217.966270][ T6249] dump_stack+0x1c/0x5c [ 217.966937][ T6249] sysfs_create_dir_ns+0x244/0x264 [ 217.967731][ T6249] kobject_add_internal+0x5ac/0xc3c [ 217.968614][ T6249] kobject_init_and_add+0x124/0x190 [ 217.969472][ T6249] gfs2_sys_fs_add+0x200/0x41c [ 217.970265][ T6249] gfs2_fill_super+0xddc/0x1a18 [ 217.971063][ T6249] get_tree_bdev+0x358/0x544 [ 217.971866][ T6249] gfs2_get_tree+0x54/0x1b4 [ 217.972633][ T6249] vfs_get_tree+0x90/0x274 [ 217.973347][ T6249] do_new_mount+0x228/0x810 [ 217.974095][ T6249] path_mount+0x5bc/0x1008 [ 217.974917][ T6249] __arm64_sys_mount+0x514/0x5f0 [ 217.975774][ T6249] invoke_syscall+0x98/0x2b0 [ 217.976539][ T6249] el0_svc_common+0x138/0x258 [ 217.977337][ T6249] do_el0_svc+0x58/0x13c [ 217.978133][ T6249] el0_svc+0x78/0x1d0 [ 217.978832][ T6249] el0t_64_sync_handler+0xcc/0xe4 [ 217.979777][ T6249] el0t_64_sync+0x1a0/0x1a4 [ 217.981948][ T6249] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.983868][ T6249] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.234889][ T6251] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.236142][ T6251] CPU: 1 PID: 6251 Comm: syz.1.635 Not tainted syzkaller #0 [ 218.237239][ T6251] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.238774][ T6251] Call trace: [ 218.239286][ T6251] dump_backtrace+0x0/0x458 [ 218.239993][ T6251] show_stack+0x2c/0x3c [ 218.240662][ T6251] __dump_stack+0x30/0x40 [ 218.241330][ T6251] dump_stack_lvl+0xf4/0x15c [ 218.242097][ T6251] dump_stack+0x1c/0x5c [ 218.242736][ T6251] sysfs_create_dir_ns+0x244/0x264 [ 218.243504][ T6251] kobject_add_internal+0x5ac/0xc3c [ 218.244327][ T6251] kobject_init_and_add+0x124/0x190 [ 218.245115][ T6251] gfs2_sys_fs_add+0x200/0x41c [ 218.245843][ T6251] gfs2_fill_super+0xddc/0x1a18 [ 218.246525][ T6251] get_tree_bdev+0x358/0x544 [ 218.247251][ T6251] gfs2_get_tree+0x54/0x1b4 [ 218.247973][ T6251] vfs_get_tree+0x90/0x274 [ 218.248672][ T6251] do_new_mount+0x228/0x810 [ 218.249380][ T6251] path_mount+0x5bc/0x1008 [ 218.250061][ T6251] __arm64_sys_mount+0x514/0x5f0 [ 218.250815][ T6251] invoke_syscall+0x98/0x2b0 [ 218.251507][ T6251] el0_svc_common+0x138/0x258 [ 218.252236][ T6251] do_el0_svc+0x58/0x13c [ 218.252937][ T6251] el0_svc+0x78/0x1d0 [ 218.253624][ T6251] el0t_64_sync_handler+0xcc/0xe4 [ 218.254496][ T6251] el0t_64_sync+0x1a0/0x1a4 [ 218.256698][ T6251] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.259007][ T6251] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.429007][ T6253] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.430433][ T6253] CPU: 0 PID: 6253 Comm: syz.1.636 Not tainted syzkaller #0 [ 218.431583][ T6253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.433229][ T6253] Call trace: [ 218.433758][ T6253] dump_backtrace+0x0/0x458 [ 218.434471][ T6253] show_stack+0x2c/0x3c [ 218.435170][ T6253] __dump_stack+0x30/0x40 [ 218.435750][ T6253] dump_stack_lvl+0xf4/0x15c [ 218.436602][ T6253] dump_stack+0x1c/0x5c [ 218.437325][ T6253] sysfs_create_dir_ns+0x244/0x264 [ 218.438210][ T6253] kobject_add_internal+0x5ac/0xc3c [ 218.439055][ T6253] kobject_init_and_add+0x124/0x190 [ 218.439976][ T6253] gfs2_sys_fs_add+0x200/0x41c [ 218.440766][ T6253] gfs2_fill_super+0xddc/0x1a18 [ 218.441466][ T6253] get_tree_bdev+0x358/0x544 [ 218.442131][ T6253] gfs2_get_tree+0x54/0x1b4 [ 218.442766][ T6253] vfs_get_tree+0x90/0x274 [ 218.443415][ T6253] do_new_mount+0x228/0x810 [ 218.444172][ T6253] path_mount+0x5bc/0x1008 [ 218.444934][ T6253] __arm64_sys_mount+0x514/0x5f0 [ 218.445675][ T6253] invoke_syscall+0x98/0x2b0 [ 218.446499][ T6253] el0_svc_common+0x138/0x258 [ 218.447275][ T6253] do_el0_svc+0x58/0x13c [ 218.447939][ T6253] el0_svc+0x78/0x1d0 [ 218.448623][ T6253] el0t_64_sync_handler+0xcc/0xe4 [ 218.449421][ T6253] el0t_64_sync+0x1a0/0x1a4 [ 218.451170][ T6253] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.453265][ T6253] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.671716][ T6255] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.673111][ T6255] CPU: 0 PID: 6255 Comm: syz.1.637 Not tainted syzkaller #0 [ 218.674249][ T6255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.675790][ T6255] Call trace: [ 218.676289][ T6255] dump_backtrace+0x0/0x458 [ 218.676986][ T6255] show_stack+0x2c/0x3c [ 218.677597][ T6255] __dump_stack+0x30/0x40 [ 218.678272][ T6255] dump_stack_lvl+0xf4/0x15c [ 218.679048][ T6255] dump_stack+0x1c/0x5c [ 218.679775][ T6255] sysfs_create_dir_ns+0x244/0x264 [ 218.680663][ T6255] kobject_add_internal+0x5ac/0xc3c [ 218.681497][ T6255] kobject_init_and_add+0x124/0x190 [ 218.682199][ T6255] gfs2_sys_fs_add+0x200/0x41c [ 218.682978][ T6255] gfs2_fill_super+0xddc/0x1a18 [ 218.683776][ T6255] get_tree_bdev+0x358/0x544 [ 218.684536][ T6255] gfs2_get_tree+0x54/0x1b4 [ 218.685271][ T6255] vfs_get_tree+0x90/0x274 [ 218.686024][ T6255] do_new_mount+0x228/0x810 [ 218.686797][ T6255] path_mount+0x5bc/0x1008 [ 218.687550][ T6255] __arm64_sys_mount+0x514/0x5f0 [ 218.688328][ T6255] invoke_syscall+0x98/0x2b0 [ 218.689049][ T6255] el0_svc_common+0x138/0x258 [ 218.689820][ T6255] do_el0_svc+0x58/0x13c [ 218.690469][ T6255] el0_svc+0x78/0x1d0 [ 218.691140][ T6255] el0t_64_sync_handler+0xcc/0xe4 [ 218.692012][ T6255] el0t_64_sync+0x1a0/0x1a4 [ 218.694500][ T6255] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.696421][ T6255] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.873521][ T6257] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.874871][ T6257] CPU: 0 PID: 6257 Comm: syz.1.638 Not tainted syzkaller #0 [ 218.876044][ T6257] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 218.877814][ T6257] Call trace: [ 218.878353][ T6257] dump_backtrace+0x0/0x458 [ 218.879114][ T6257] show_stack+0x2c/0x3c [ 218.879769][ T6257] __dump_stack+0x30/0x40 [ 218.880501][ T6257] dump_stack_lvl+0xf4/0x15c [ 218.881217][ T6257] dump_stack+0x1c/0x5c [ 218.881882][ T6257] sysfs_create_dir_ns+0x244/0x264 [ 218.882762][ T6257] kobject_add_internal+0x5ac/0xc3c [ 218.883561][ T6257] kobject_init_and_add+0x124/0x190 [ 218.884364][ T6257] gfs2_sys_fs_add+0x200/0x41c [ 218.885211][ T6257] gfs2_fill_super+0xddc/0x1a18 [ 218.886044][ T6257] get_tree_bdev+0x358/0x544 [ 218.886814][ T6257] gfs2_get_tree+0x54/0x1b4 [ 218.887541][ T6257] vfs_get_tree+0x90/0x274 [ 218.888364][ T6257] do_new_mount+0x228/0x810 [ 218.888576][ T25] Bluetooth: hci2: command 0x040f tx timeout [ 218.889126][ T6257] path_mount+0x5bc/0x1008 [ 218.890790][ T6257] __arm64_sys_mount+0x514/0x5f0 [ 218.891630][ T6257] invoke_syscall+0x98/0x2b0 [ 218.892376][ T6257] el0_svc_common+0x138/0x258 [ 218.893155][ T6257] do_el0_svc+0x58/0x13c [ 218.893871][ T6257] el0_svc+0x78/0x1d0 [ 218.894505][ T6257] el0t_64_sync_handler+0xcc/0xe4 [ 218.895257][ T6257] el0t_64_sync+0x1a0/0x1a4 [ 218.897531][ T6257] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.899741][ T6257] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.073087][ T6259] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.074343][ T6259] CPU: 1 PID: 6259 Comm: syz.1.639 Not tainted syzkaller #0 [ 219.075510][ T6259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.077123][ T6259] Call trace: [ 219.077647][ T6259] dump_backtrace+0x0/0x458 [ 219.078383][ T6259] show_stack+0x2c/0x3c [ 219.079062][ T6259] __dump_stack+0x30/0x40 [ 219.079777][ T6259] dump_stack_lvl+0xf4/0x15c [ 219.080501][ T6259] dump_stack+0x1c/0x5c [ 219.081227][ T6259] sysfs_create_dir_ns+0x244/0x264 [ 219.082045][ T6259] kobject_add_internal+0x5ac/0xc3c [ 219.082871][ T6259] kobject_init_and_add+0x124/0x190 [ 219.083699][ T6259] gfs2_sys_fs_add+0x200/0x41c [ 219.084433][ T6259] gfs2_fill_super+0xddc/0x1a18 [ 219.085204][ T6259] get_tree_bdev+0x358/0x544 [ 219.085961][ T6259] gfs2_get_tree+0x54/0x1b4 [ 219.086681][ T6259] vfs_get_tree+0x90/0x274 [ 219.087360][ T6259] do_new_mount+0x228/0x810 [ 219.088045][ T6259] path_mount+0x5bc/0x1008 [ 219.088809][ T6259] __arm64_sys_mount+0x514/0x5f0 [ 219.089656][ T6259] invoke_syscall+0x98/0x2b0 [ 219.090401][ T6259] el0_svc_common+0x138/0x258 [ 219.091127][ T6259] do_el0_svc+0x58/0x13c [ 219.091837][ T6259] el0_svc+0x78/0x1d0 [ 219.092521][ T6259] el0t_64_sync_handler+0xcc/0xe4 [ 219.093357][ T6259] el0t_64_sync+0x1a0/0x1a4 [ 219.095629][ T6259] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.097701][ T6259] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.309858][ T6261] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.311103][ T6261] CPU: 0 PID: 6261 Comm: syz.1.640 Not tainted syzkaller #0 [ 219.312270][ T6261] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.313803][ T6261] Call trace: [ 219.314305][ T6261] dump_backtrace+0x0/0x458 [ 219.314973][ T6261] show_stack+0x2c/0x3c [ 219.315576][ T6261] __dump_stack+0x30/0x40 [ 219.316351][ T6261] dump_stack_lvl+0xf4/0x15c [ 219.317068][ T6261] dump_stack+0x1c/0x5c [ 219.317776][ T6261] sysfs_create_dir_ns+0x244/0x264 [ 219.318623][ T6261] kobject_add_internal+0x5ac/0xc3c [ 219.319583][ T6261] kobject_init_and_add+0x124/0x190 [ 219.320434][ T6261] gfs2_sys_fs_add+0x200/0x41c [ 219.321269][ T6261] gfs2_fill_super+0xddc/0x1a18 [ 219.322044][ T6261] get_tree_bdev+0x358/0x544 [ 219.322796][ T6261] gfs2_get_tree+0x54/0x1b4 [ 219.323522][ T6261] vfs_get_tree+0x90/0x274 [ 219.324192][ T6261] do_new_mount+0x228/0x810 [ 219.324885][ T6261] path_mount+0x5bc/0x1008 [ 219.325688][ T6261] __arm64_sys_mount+0x514/0x5f0 [ 219.326563][ T6261] invoke_syscall+0x98/0x2b0 [ 219.327386][ T6261] el0_svc_common+0x138/0x258 [ 219.328184][ T6261] do_el0_svc+0x58/0x13c [ 219.328876][ T6261] el0_svc+0x78/0x1d0 [ 219.329548][ T6261] el0t_64_sync_handler+0xcc/0xe4 [ 219.330402][ T6261] el0t_64_sync+0x1a0/0x1a4 [ 219.332651][ T6261] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.334776][ T6261] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:39 executed programs: 627 [ 219.466748][ T6263] set_capacity_and_notify: 12 callbacks suppressed [ 219.466758][ T6263] loop1: detected capacity change from 0 to 32768 [ 219.551897][ T6263] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.553178][ T6263] CPU: 1 PID: 6263 Comm: syz.1.641 Not tainted syzkaller #0 [ 219.554376][ T6263] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.556079][ T6263] Call trace: [ 219.556610][ T6263] dump_backtrace+0x0/0x458 [ 219.557363][ T6263] show_stack+0x2c/0x3c [ 219.558033][ T6263] __dump_stack+0x30/0x40 [ 219.558747][ T6263] dump_stack_lvl+0xf4/0x15c [ 219.559456][ T6263] dump_stack+0x1c/0x5c [ 219.560175][ T6263] sysfs_create_dir_ns+0x244/0x264 [ 219.561004][ T6263] kobject_add_internal+0x5ac/0xc3c [ 219.561925][ T6263] kobject_init_and_add+0x124/0x190 [ 219.562770][ T6263] gfs2_sys_fs_add+0x200/0x41c [ 219.563548][ T6263] gfs2_fill_super+0xddc/0x1a18 [ 219.564379][ T6263] get_tree_bdev+0x358/0x544 [ 219.565207][ T6263] gfs2_get_tree+0x54/0x1b4 [ 219.565990][ T6263] vfs_get_tree+0x90/0x274 [ 219.566688][ T6263] do_new_mount+0x228/0x810 [ 219.567431][ T6263] path_mount+0x5bc/0x1008 [ 219.568084][ T6263] __arm64_sys_mount+0x514/0x5f0 [ 219.568844][ T6263] invoke_syscall+0x98/0x2b0 [ 219.569584][ T6263] el0_svc_common+0x138/0x258 [ 219.570391][ T6263] do_el0_svc+0x58/0x13c [ 219.571105][ T6263] el0_svc+0x78/0x1d0 [ 219.571796][ T6263] el0t_64_sync_handler+0xcc/0xe4 [ 219.572651][ T6263] el0t_64_sync+0x1a0/0x1a4 [ 219.575186][ T6263] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.577385][ T6263] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.707869][ T6265] loop1: detected capacity change from 0 to 32768 [ 219.748872][ T6265] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 219.750076][ T6265] CPU: 0 PID: 6265 Comm: syz.1.642 Not tainted syzkaller #0 [ 219.751278][ T6265] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 219.752882][ T6265] Call trace: [ 219.753437][ T6265] dump_backtrace+0x0/0x458 [ 219.754196][ T6265] show_stack+0x2c/0x3c [ 219.754905][ T6265] __dump_stack+0x30/0x40 [ 219.755658][ T6265] dump_stack_lvl+0xf4/0x15c [ 219.756420][ T6265] dump_stack+0x1c/0x5c [ 219.757109][ T6265] sysfs_create_dir_ns+0x244/0x264 [ 219.758001][ T6265] kobject_add_internal+0x5ac/0xc3c [ 219.758879][ T6265] kobject_init_and_add+0x124/0x190 [ 219.759761][ T6265] gfs2_sys_fs_add+0x200/0x41c [ 219.760538][ T6265] gfs2_fill_super+0xddc/0x1a18 [ 219.761333][ T6265] get_tree_bdev+0x358/0x544 [ 219.762058][ T6265] gfs2_get_tree+0x54/0x1b4 [ 219.762804][ T6265] vfs_get_tree+0x90/0x274 [ 219.763455][ T6265] do_new_mount+0x228/0x810 [ 219.764236][ T6265] path_mount+0x5bc/0x1008 [ 219.765019][ T6265] __arm64_sys_mount+0x514/0x5f0 [ 219.765909][ T6265] invoke_syscall+0x98/0x2b0 [ 219.766735][ T6265] el0_svc_common+0x138/0x258 [ 219.767444][ T6265] do_el0_svc+0x58/0x13c [ 219.768133][ T6265] el0_svc+0x78/0x1d0 [ 219.768801][ T6265] el0t_64_sync_handler+0xcc/0xe4 [ 219.769585][ T6265] el0t_64_sync+0x1a0/0x1a4 [ 219.771985][ T6265] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 219.774057][ T6265] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 219.961215][ T6267] loop1: detected capacity change from 0 to 32768 [ 220.002721][ T6267] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.003944][ T6267] CPU: 0 PID: 6267 Comm: syz.1.643 Not tainted syzkaller #0 [ 220.005188][ T6267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.006811][ T6267] Call trace: [ 220.007362][ T6267] dump_backtrace+0x0/0x458 [ 220.008140][ T6267] show_stack+0x2c/0x3c [ 220.008803][ T6267] __dump_stack+0x30/0x40 [ 220.009507][ T6267] dump_stack_lvl+0xf4/0x15c [ 220.010245][ T6267] dump_stack+0x1c/0x5c [ 220.010924][ T6267] sysfs_create_dir_ns+0x244/0x264 [ 220.011738][ T6267] kobject_add_internal+0x5ac/0xc3c [ 220.012644][ T6267] kobject_init_and_add+0x124/0x190 [ 220.013486][ T6267] gfs2_sys_fs_add+0x200/0x41c [ 220.014339][ T6267] gfs2_fill_super+0xddc/0x1a18 [ 220.015159][ T6267] get_tree_bdev+0x358/0x544 [ 220.015965][ T6267] gfs2_get_tree+0x54/0x1b4 [ 220.016707][ T6267] vfs_get_tree+0x90/0x274 [ 220.017381][ T6267] do_new_mount+0x228/0x810 [ 220.018220][ T6267] path_mount+0x5bc/0x1008 [ 220.018949][ T6267] __arm64_sys_mount+0x514/0x5f0 [ 220.019764][ T6267] invoke_syscall+0x98/0x2b0 [ 220.020533][ T6267] el0_svc_common+0x138/0x258 [ 220.021304][ T6267] do_el0_svc+0x58/0x13c [ 220.021972][ T6267] el0_svc+0x78/0x1d0 [ 220.022656][ T6267] el0t_64_sync_handler+0xcc/0xe4 [ 220.023561][ T6267] el0t_64_sync+0x1a0/0x1a4 [ 220.025699][ T6267] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.028294][ T6267] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.161643][ T6269] loop1: detected capacity change from 0 to 32768 [ 220.169340][ T6269] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.170608][ T6269] CPU: 1 PID: 6269 Comm: syz.1.644 Not tainted syzkaller #0 [ 220.171867][ T6269] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.173509][ T6269] Call trace: [ 220.174027][ T6269] dump_backtrace+0x0/0x458 [ 220.174726][ T6269] show_stack+0x2c/0x3c [ 220.175391][ T6269] __dump_stack+0x30/0x40 [ 220.176120][ T6269] dump_stack_lvl+0xf4/0x15c [ 220.176797][ T6269] dump_stack+0x1c/0x5c [ 220.177437][ T6269] sysfs_create_dir_ns+0x244/0x264 [ 220.178219][ T6269] kobject_add_internal+0x5ac/0xc3c [ 220.178995][ T6269] kobject_init_and_add+0x124/0x190 [ 220.179795][ T6269] gfs2_sys_fs_add+0x200/0x41c [ 220.180540][ T6269] gfs2_fill_super+0xddc/0x1a18 [ 220.181330][ T6269] get_tree_bdev+0x358/0x544 [ 220.182163][ T6269] gfs2_get_tree+0x54/0x1b4 [ 220.182956][ T6269] vfs_get_tree+0x90/0x274 [ 220.183726][ T6269] do_new_mount+0x228/0x810 [ 220.184483][ T6269] path_mount+0x5bc/0x1008 [ 220.185167][ T6269] __arm64_sys_mount+0x514/0x5f0 [ 220.185969][ T6269] invoke_syscall+0x98/0x2b0 [ 220.186692][ T6269] el0_svc_common+0x138/0x258 [ 220.187438][ T6269] do_el0_svc+0x58/0x13c [ 220.188159][ T6269] el0_svc+0x78/0x1d0 [ 220.188872][ T6269] el0t_64_sync_handler+0xcc/0xe4 [ 220.189763][ T6269] el0t_64_sync+0x1a0/0x1a4 [ 220.192163][ T6269] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.194073][ T6269] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.322546][ T6271] loop1: detected capacity change from 0 to 32768 [ 220.358631][ T6271] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.359906][ T6271] CPU: 1 PID: 6271 Comm: syz.1.645 Not tainted syzkaller #0 [ 220.361137][ T6271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.362884][ T6271] Call trace: [ 220.363461][ T6271] dump_backtrace+0x0/0x458 [ 220.364228][ T6271] show_stack+0x2c/0x3c [ 220.364901][ T6271] __dump_stack+0x30/0x40 [ 220.365531][ T6271] dump_stack_lvl+0xf4/0x15c [ 220.366293][ T6271] dump_stack+0x1c/0x5c [ 220.366933][ T6271] sysfs_create_dir_ns+0x244/0x264 [ 220.367745][ T6271] kobject_add_internal+0x5ac/0xc3c [ 220.368607][ T6271] kobject_init_and_add+0x124/0x190 [ 220.369464][ T6271] gfs2_sys_fs_add+0x200/0x41c [ 220.370222][ T6271] gfs2_fill_super+0xddc/0x1a18 [ 220.370967][ T6271] get_tree_bdev+0x358/0x544 [ 220.371724][ T6271] gfs2_get_tree+0x54/0x1b4 [ 220.372480][ T6271] vfs_get_tree+0x90/0x274 [ 220.373282][ T6271] do_new_mount+0x228/0x810 [ 220.374132][ T6271] path_mount+0x5bc/0x1008 [ 220.374878][ T6271] __arm64_sys_mount+0x514/0x5f0 [ 220.375668][ T6271] invoke_syscall+0x98/0x2b0 [ 220.376430][ T6271] el0_svc_common+0x138/0x258 [ 220.377159][ T6271] do_el0_svc+0x58/0x13c [ 220.377872][ T6271] el0_svc+0x78/0x1d0 [ 220.378513][ T6271] el0t_64_sync_handler+0xcc/0xe4 [ 220.379376][ T6271] el0t_64_sync+0x1a0/0x1a4 [ 220.381126][ T6271] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.383872][ T6271] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.514015][ T6273] loop1: detected capacity change from 0 to 32768 [ 220.579666][ T6273] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.581014][ T6273] CPU: 0 PID: 6273 Comm: syz.1.646 Not tainted syzkaller #0 [ 220.582164][ T6273] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.583775][ T6273] Call trace: [ 220.584329][ T6273] dump_backtrace+0x0/0x458 [ 220.585085][ T6273] show_stack+0x2c/0x3c [ 220.585784][ T6273] __dump_stack+0x30/0x40 [ 220.586475][ T6273] dump_stack_lvl+0xf4/0x15c [ 220.587265][ T6273] dump_stack+0x1c/0x5c [ 220.587999][ T6273] sysfs_create_dir_ns+0x244/0x264 [ 220.588861][ T6273] kobject_add_internal+0x5ac/0xc3c [ 220.589746][ T6273] kobject_init_and_add+0x124/0x190 [ 220.590587][ T6273] gfs2_sys_fs_add+0x200/0x41c [ 220.591365][ T6273] gfs2_fill_super+0xddc/0x1a18 [ 220.592180][ T6273] get_tree_bdev+0x358/0x544 [ 220.592967][ T6273] gfs2_get_tree+0x54/0x1b4 [ 220.593728][ T6273] vfs_get_tree+0x90/0x274 [ 220.594486][ T6273] do_new_mount+0x228/0x810 [ 220.595249][ T6273] path_mount+0x5bc/0x1008 [ 220.596000][ T6273] __arm64_sys_mount+0x514/0x5f0 [ 220.596834][ T6273] invoke_syscall+0x98/0x2b0 [ 220.597623][ T6273] el0_svc_common+0x138/0x258 [ 220.598399][ T6273] do_el0_svc+0x58/0x13c [ 220.599091][ T6273] el0_svc+0x78/0x1d0 [ 220.599713][ T6273] el0t_64_sync_handler+0xcc/0xe4 [ 220.600514][ T6273] el0t_64_sync+0x1a0/0x1a4 [ 220.602734][ T6273] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.604684][ T6273] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.739133][ T6275] loop1: detected capacity change from 0 to 32768 [ 220.778641][ T6275] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 220.779866][ T6275] CPU: 0 PID: 6275 Comm: syz.1.647 Not tainted syzkaller #0 [ 220.781132][ T6275] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 220.782854][ T6275] Call trace: [ 220.783413][ T6275] dump_backtrace+0x0/0x458 [ 220.784186][ T6275] show_stack+0x2c/0x3c [ 220.784908][ T6275] __dump_stack+0x30/0x40 [ 220.785562][ T6275] dump_stack_lvl+0xf4/0x15c [ 220.786382][ T6275] dump_stack+0x1c/0x5c [ 220.787108][ T6275] sysfs_create_dir_ns+0x244/0x264 [ 220.787908][ T6275] kobject_add_internal+0x5ac/0xc3c [ 220.788713][ T6275] kobject_init_and_add+0x124/0x190 [ 220.789509][ T6275] gfs2_sys_fs_add+0x200/0x41c [ 220.790268][ T6275] gfs2_fill_super+0xddc/0x1a18 [ 220.791076][ T6275] get_tree_bdev+0x358/0x544 [ 220.791736][ T6275] gfs2_get_tree+0x54/0x1b4 [ 220.792396][ T6275] vfs_get_tree+0x90/0x274 [ 220.793064][ T6275] do_new_mount+0x228/0x810 [ 220.793858][ T6275] path_mount+0x5bc/0x1008 [ 220.794557][ T6275] __arm64_sys_mount+0x514/0x5f0 [ 220.795359][ T6275] invoke_syscall+0x98/0x2b0 [ 220.796138][ T6275] el0_svc_common+0x138/0x258 [ 220.796935][ T6275] do_el0_svc+0x58/0x13c [ 220.797620][ T6275] el0_svc+0x78/0x1d0 [ 220.798279][ T6275] el0t_64_sync_handler+0xcc/0xe4 [ 220.799061][ T6275] el0t_64_sync+0x1a0/0x1a4 [ 220.800383][ T6275] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 220.802424][ T6275] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 220.935982][ T6277] loop1: detected capacity change from 0 to 32768 [ 220.977399][ T25] Bluetooth: hci2: command 0x0419 tx timeout [ 221.008287][ T6277] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.009526][ T6277] CPU: 1 PID: 6277 Comm: syz.1.648 Not tainted syzkaller #0 [ 221.010691][ T6277] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.012319][ T6277] Call trace: [ 221.012807][ T6277] dump_backtrace+0x0/0x458 [ 221.013548][ T6277] show_stack+0x2c/0x3c [ 221.014259][ T6277] __dump_stack+0x30/0x40 [ 221.015042][ T6277] dump_stack_lvl+0xf4/0x15c [ 221.015855][ T6277] dump_stack+0x1c/0x5c [ 221.016574][ T6277] sysfs_create_dir_ns+0x244/0x264 [ 221.017412][ T6277] kobject_add_internal+0x5ac/0xc3c [ 221.018266][ T6277] kobject_init_and_add+0x124/0x190 [ 221.019159][ T6277] gfs2_sys_fs_add+0x200/0x41c [ 221.019962][ T6277] gfs2_fill_super+0xddc/0x1a18 [ 221.020854][ T6277] get_tree_bdev+0x358/0x544 [ 221.021675][ T6277] gfs2_get_tree+0x54/0x1b4 [ 221.022421][ T6277] vfs_get_tree+0x90/0x274 [ 221.023157][ T6277] do_new_mount+0x228/0x810 [ 221.023859][ T6277] path_mount+0x5bc/0x1008 [ 221.024563][ T6277] __arm64_sys_mount+0x514/0x5f0 [ 221.025488][ T6277] invoke_syscall+0x98/0x2b0 [ 221.026266][ T6277] el0_svc_common+0x138/0x258 [ 221.027026][ T6277] do_el0_svc+0x58/0x13c [ 221.027679][ T6277] el0_svc+0x78/0x1d0 [ 221.028350][ T6277] el0t_64_sync_handler+0xcc/0xe4 [ 221.029157][ T6277] el0t_64_sync+0x1a0/0x1a4 [ 221.031330][ T6277] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.033443][ T6277] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.161441][ T6279] loop1: detected capacity change from 0 to 32768 [ 221.212412][ T6279] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.213522][ T6279] CPU: 1 PID: 6279 Comm: syz.1.649 Not tainted syzkaller #0 [ 221.214749][ T6279] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.216477][ T6279] Call trace: [ 221.217086][ T6279] dump_backtrace+0x0/0x458 [ 221.217799][ T6279] show_stack+0x2c/0x3c [ 221.218491][ T6279] __dump_stack+0x30/0x40 [ 221.219169][ T6279] dump_stack_lvl+0xf4/0x15c [ 221.219914][ T6279] dump_stack+0x1c/0x5c [ 221.220586][ T6279] sysfs_create_dir_ns+0x244/0x264 [ 221.221400][ T6279] kobject_add_internal+0x5ac/0xc3c [ 221.222230][ T6279] kobject_init_and_add+0x124/0x190 [ 221.223237][ T6279] gfs2_sys_fs_add+0x200/0x41c [ 221.224085][ T6279] gfs2_fill_super+0xddc/0x1a18 [ 221.224892][ T6279] get_tree_bdev+0x358/0x544 [ 221.225654][ T6279] gfs2_get_tree+0x54/0x1b4 [ 221.226384][ T6279] vfs_get_tree+0x90/0x274 [ 221.227147][ T6279] do_new_mount+0x228/0x810 [ 221.227905][ T6279] path_mount+0x5bc/0x1008 [ 221.228661][ T6279] __arm64_sys_mount+0x514/0x5f0 [ 221.229464][ T6279] invoke_syscall+0x98/0x2b0 [ 221.230242][ T6279] el0_svc_common+0x138/0x258 [ 221.231007][ T6279] do_el0_svc+0x58/0x13c [ 221.231717][ T6279] el0_svc+0x78/0x1d0 [ 221.232381][ T6279] el0t_64_sync_handler+0xcc/0xe4 [ 221.233257][ T6279] el0t_64_sync+0x1a0/0x1a4 [ 221.234846][ T6279] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.236953][ T6279] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.369653][ T6281] loop1: detected capacity change from 0 to 32768 [ 221.376283][ T6281] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.377655][ T6281] CPU: 1 PID: 6281 Comm: syz.1.650 Not tainted syzkaller #0 [ 221.378922][ T6281] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.380539][ T6281] Call trace: [ 221.381065][ T6281] dump_backtrace+0x0/0x458 [ 221.381766][ T6281] show_stack+0x2c/0x3c [ 221.382420][ T6281] __dump_stack+0x30/0x40 [ 221.383178][ T6281] dump_stack_lvl+0xf4/0x15c [ 221.383940][ T6281] dump_stack+0x1c/0x5c [ 221.384590][ T6281] sysfs_create_dir_ns+0x244/0x264 [ 221.385402][ T6281] kobject_add_internal+0x5ac/0xc3c [ 221.386231][ T6281] kobject_init_and_add+0x124/0x190 [ 221.387060][ T6281] gfs2_sys_fs_add+0x200/0x41c [ 221.387786][ T6281] gfs2_fill_super+0xddc/0x1a18 [ 221.388592][ T6281] get_tree_bdev+0x358/0x544 [ 221.389307][ T6281] gfs2_get_tree+0x54/0x1b4 [ 221.389991][ T6281] vfs_get_tree+0x90/0x274 [ 221.390670][ T6281] do_new_mount+0x228/0x810 [ 221.391472][ T6281] path_mount+0x5bc/0x1008 [ 221.392227][ T6281] __arm64_sys_mount+0x514/0x5f0 [ 221.393059][ T6281] invoke_syscall+0x98/0x2b0 [ 221.393811][ T6281] el0_svc_common+0x138/0x258 [ 221.394578][ T6281] do_el0_svc+0x58/0x13c [ 221.395291][ T6281] el0_svc+0x78/0x1d0 [ 221.395983][ T6281] el0t_64_sync_handler+0xcc/0xe4 [ 221.396781][ T6281] el0t_64_sync+0x1a0/0x1a4 [ 221.397997][ T6281] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.400104][ T6281] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.538293][ T6283] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.539583][ T6283] CPU: 0 PID: 6283 Comm: syz.1.651 Not tainted syzkaller #0 [ 221.540650][ T6283] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.542202][ T6283] Call trace: [ 221.542703][ T6283] dump_backtrace+0x0/0x458 [ 221.543440][ T6283] show_stack+0x2c/0x3c [ 221.544180][ T6283] __dump_stack+0x30/0x40 [ 221.544889][ T6283] dump_stack_lvl+0xf4/0x15c [ 221.545646][ T6283] dump_stack+0x1c/0x5c [ 221.546320][ T6283] sysfs_create_dir_ns+0x244/0x264 [ 221.547115][ T6283] kobject_add_internal+0x5ac/0xc3c [ 221.547972][ T6283] kobject_init_and_add+0x124/0x190 [ 221.548823][ T6283] gfs2_sys_fs_add+0x200/0x41c [ 221.549675][ T6283] gfs2_fill_super+0xddc/0x1a18 [ 221.550578][ T6283] get_tree_bdev+0x358/0x544 [ 221.551432][ T6283] gfs2_get_tree+0x54/0x1b4 [ 221.552193][ T6283] vfs_get_tree+0x90/0x274 [ 221.552908][ T6283] do_new_mount+0x228/0x810 [ 221.553750][ T6283] path_mount+0x5bc/0x1008 [ 221.554528][ T6283] __arm64_sys_mount+0x514/0x5f0 [ 221.555321][ T6283] invoke_syscall+0x98/0x2b0 [ 221.556067][ T6283] el0_svc_common+0x138/0x258 [ 221.556881][ T6283] do_el0_svc+0x58/0x13c [ 221.557584][ T6283] el0_svc+0x78/0x1d0 [ 221.558236][ T6283] el0t_64_sync_handler+0xcc/0xe4 [ 221.559070][ T6283] el0t_64_sync+0x1a0/0x1a4 [ 221.561212][ T6283] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.563326][ T6283] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.728538][ T6285] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.729749][ T6285] CPU: 0 PID: 6285 Comm: syz.1.652 Not tainted syzkaller #0 [ 221.731003][ T6285] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.732723][ T6285] Call trace: [ 221.733275][ T6285] dump_backtrace+0x0/0x458 [ 221.734044][ T6285] show_stack+0x2c/0x3c [ 221.734736][ T6285] __dump_stack+0x30/0x40 [ 221.735479][ T6285] dump_stack_lvl+0xf4/0x15c [ 221.736192][ T6285] dump_stack+0x1c/0x5c [ 221.736884][ T6285] sysfs_create_dir_ns+0x244/0x264 [ 221.737715][ T6285] kobject_add_internal+0x5ac/0xc3c [ 221.738536][ T6285] kobject_init_and_add+0x124/0x190 [ 221.739352][ T6285] gfs2_sys_fs_add+0x200/0x41c [ 221.740069][ T6285] gfs2_fill_super+0xddc/0x1a18 [ 221.740812][ T6285] get_tree_bdev+0x358/0x544 [ 221.741526][ T6285] gfs2_get_tree+0x54/0x1b4 [ 221.742229][ T6285] vfs_get_tree+0x90/0x274 [ 221.742928][ T6285] do_new_mount+0x228/0x810 [ 221.743629][ T6285] path_mount+0x5bc/0x1008 [ 221.744332][ T6285] __arm64_sys_mount+0x514/0x5f0 [ 221.745096][ T6285] invoke_syscall+0x98/0x2b0 [ 221.745832][ T6285] el0_svc_common+0x138/0x258 [ 221.746683][ T6285] do_el0_svc+0x58/0x13c [ 221.747337][ T6285] el0_svc+0x78/0x1d0 [ 221.747932][ T6285] el0t_64_sync_handler+0xcc/0xe4 [ 221.748668][ T6285] el0t_64_sync+0x1a0/0x1a4 [ 221.750870][ T6285] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.752976][ T6285] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 221.962210][ T6287] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 221.963508][ T6287] CPU: 1 PID: 6287 Comm: syz.1.653 Not tainted syzkaller #0 [ 221.964669][ T6287] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 221.966452][ T6287] Call trace: [ 221.966940][ T6287] dump_backtrace+0x0/0x458 [ 221.967793][ T6287] show_stack+0x2c/0x3c [ 221.968540][ T6287] __dump_stack+0x30/0x40 [ 221.969226][ T6287] dump_stack_lvl+0xf4/0x15c [ 221.969941][ T6287] dump_stack+0x1c/0x5c [ 221.970650][ T6287] sysfs_create_dir_ns+0x244/0x264 [ 221.971543][ T6287] kobject_add_internal+0x5ac/0xc3c [ 221.972424][ T6287] kobject_init_and_add+0x124/0x190 [ 221.973360][ T6287] gfs2_sys_fs_add+0x200/0x41c [ 221.974144][ T6287] gfs2_fill_super+0xddc/0x1a18 [ 221.975070][ T6287] get_tree_bdev+0x358/0x544 [ 221.975814][ T6287] gfs2_get_tree+0x54/0x1b4 [ 221.976580][ T6287] vfs_get_tree+0x90/0x274 [ 221.977341][ T6287] do_new_mount+0x228/0x810 [ 221.978137][ T6287] path_mount+0x5bc/0x1008 [ 221.978884][ T6287] __arm64_sys_mount+0x514/0x5f0 [ 221.979674][ T6287] invoke_syscall+0x98/0x2b0 [ 221.980427][ T6287] el0_svc_common+0x138/0x258 [ 221.981221][ T6287] do_el0_svc+0x58/0x13c [ 221.981907][ T6287] el0_svc+0x78/0x1d0 [ 221.982566][ T6287] el0t_64_sync_handler+0xcc/0xe4 [ 221.983407][ T6287] el0t_64_sync+0x1a0/0x1a4 [ 221.984399][ T6287] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 221.986412][ T6287] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.125361][ T6289] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.126438][ T6289] CPU: 0 PID: 6289 Comm: syz.1.654 Not tainted syzkaller #0 [ 222.127442][ T6289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.129078][ T6289] Call trace: [ 222.129604][ T6289] dump_backtrace+0x0/0x458 [ 222.130343][ T6289] show_stack+0x2c/0x3c [ 222.130968][ T6289] __dump_stack+0x30/0x40 [ 222.131639][ T6289] dump_stack_lvl+0xf4/0x15c [ 222.132331][ T6289] dump_stack+0x1c/0x5c [ 222.132979][ T6289] sysfs_create_dir_ns+0x244/0x264 [ 222.133877][ T6289] kobject_add_internal+0x5ac/0xc3c [ 222.134790][ T6289] kobject_init_and_add+0x124/0x190 [ 222.135705][ T6289] gfs2_sys_fs_add+0x200/0x41c [ 222.136458][ T6289] gfs2_fill_super+0xddc/0x1a18 [ 222.137279][ T6289] get_tree_bdev+0x358/0x544 [ 222.138101][ T6289] gfs2_get_tree+0x54/0x1b4 [ 222.138831][ T6289] vfs_get_tree+0x90/0x274 [ 222.139585][ T6289] do_new_mount+0x228/0x810 [ 222.140302][ T6289] path_mount+0x5bc/0x1008 [ 222.140961][ T6289] __arm64_sys_mount+0x514/0x5f0 [ 222.141703][ T6289] invoke_syscall+0x98/0x2b0 [ 222.142421][ T6289] el0_svc_common+0x138/0x258 [ 222.143232][ T6289] do_el0_svc+0x58/0x13c [ 222.144000][ T6289] el0_svc+0x78/0x1d0 [ 222.144661][ T6289] el0t_64_sync_handler+0xcc/0xe4 [ 222.145485][ T6289] el0t_64_sync+0x1a0/0x1a4 [ 222.147643][ T6289] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.149843][ T6289] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.323853][ T6291] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.325151][ T6291] CPU: 0 PID: 6291 Comm: syz.1.655 Not tainted syzkaller #0 [ 222.326299][ T6291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.328016][ T6291] Call trace: [ 222.328568][ T6291] dump_backtrace+0x0/0x458 [ 222.329290][ T6291] show_stack+0x2c/0x3c [ 222.329961][ T6291] __dump_stack+0x30/0x40 [ 222.330613][ T6291] dump_stack_lvl+0xf4/0x15c [ 222.331363][ T6291] dump_stack+0x1c/0x5c [ 222.331958][ T6291] sysfs_create_dir_ns+0x244/0x264 [ 222.332802][ T6291] kobject_add_internal+0x5ac/0xc3c [ 222.333670][ T6291] kobject_init_and_add+0x124/0x190 [ 222.334568][ T6291] gfs2_sys_fs_add+0x200/0x41c [ 222.335352][ T6291] gfs2_fill_super+0xddc/0x1a18 [ 222.336215][ T6291] get_tree_bdev+0x358/0x544 [ 222.337017][ T6291] gfs2_get_tree+0x54/0x1b4 [ 222.337850][ T6291] vfs_get_tree+0x90/0x274 [ 222.338613][ T6291] do_new_mount+0x228/0x810 [ 222.339395][ T6291] path_mount+0x5bc/0x1008 [ 222.340145][ T6291] __arm64_sys_mount+0x514/0x5f0 [ 222.340912][ T6291] invoke_syscall+0x98/0x2b0 [ 222.341648][ T6291] el0_svc_common+0x138/0x258 [ 222.342430][ T6291] do_el0_svc+0x58/0x13c [ 222.343145][ T6291] el0_svc+0x78/0x1d0 [ 222.343790][ T6291] el0t_64_sync_handler+0xcc/0xe4 [ 222.344607][ T6291] el0t_64_sync+0x1a0/0x1a4 [ 222.347116][ T6291] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.349361][ T6291] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.518695][ T6293] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.519957][ T6293] CPU: 1 PID: 6293 Comm: syz.1.656 Not tainted syzkaller #0 [ 222.521143][ T6293] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.522705][ T6293] Call trace: [ 222.523220][ T6293] dump_backtrace+0x0/0x458 [ 222.523979][ T6293] show_stack+0x2c/0x3c [ 222.524660][ T6293] __dump_stack+0x30/0x40 [ 222.525402][ T6293] dump_stack_lvl+0xf4/0x15c [ 222.526079][ T6293] dump_stack+0x1c/0x5c [ 222.526746][ T6293] sysfs_create_dir_ns+0x244/0x264 [ 222.527569][ T6293] kobject_add_internal+0x5ac/0xc3c [ 222.528445][ T6293] kobject_init_and_add+0x124/0x190 [ 222.529255][ T6293] gfs2_sys_fs_add+0x200/0x41c [ 222.530066][ T6293] gfs2_fill_super+0xddc/0x1a18 [ 222.530804][ T6293] get_tree_bdev+0x358/0x544 [ 222.531545][ T6293] gfs2_get_tree+0x54/0x1b4 [ 222.532312][ T6293] vfs_get_tree+0x90/0x274 [ 222.533032][ T6293] do_new_mount+0x228/0x810 [ 222.533717][ T6293] path_mount+0x5bc/0x1008 [ 222.534391][ T6293] __arm64_sys_mount+0x514/0x5f0 [ 222.535208][ T6293] invoke_syscall+0x98/0x2b0 [ 222.536033][ T6293] el0_svc_common+0x138/0x258 [ 222.536782][ T6293] do_el0_svc+0x58/0x13c [ 222.537503][ T6293] el0_svc+0x78/0x1d0 [ 222.538176][ T6293] el0t_64_sync_handler+0xcc/0xe4 [ 222.538963][ T6293] el0t_64_sync+0x1a0/0x1a4 [ 222.540256][ T6293] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.542351][ T6293] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.763476][ T6295] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.764733][ T6295] CPU: 0 PID: 6295 Comm: syz.1.657 Not tainted syzkaller #0 [ 222.765896][ T6295] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.767517][ T6295] Call trace: [ 222.768023][ T6295] dump_backtrace+0x0/0x458 [ 222.769049][ T6295] show_stack+0x2c/0x3c [ 222.769720][ T6295] __dump_stack+0x30/0x40 [ 222.770401][ T6295] dump_stack_lvl+0xf4/0x15c [ 222.771172][ T6295] dump_stack+0x1c/0x5c [ 222.771843][ T6295] sysfs_create_dir_ns+0x244/0x264 [ 222.772664][ T6295] kobject_add_internal+0x5ac/0xc3c [ 222.773517][ T6295] kobject_init_and_add+0x124/0x190 [ 222.774396][ T6295] gfs2_sys_fs_add+0x200/0x41c [ 222.775190][ T6295] gfs2_fill_super+0xddc/0x1a18 [ 222.776017][ T6295] get_tree_bdev+0x358/0x544 [ 222.776744][ T6295] gfs2_get_tree+0x54/0x1b4 [ 222.777528][ T6295] vfs_get_tree+0x90/0x274 [ 222.778281][ T6295] do_new_mount+0x228/0x810 [ 222.779027][ T6295] path_mount+0x5bc/0x1008 [ 222.779719][ T6295] __arm64_sys_mount+0x514/0x5f0 [ 222.780473][ T6295] invoke_syscall+0x98/0x2b0 [ 222.781219][ T6295] el0_svc_common+0x138/0x258 [ 222.781986][ T6295] do_el0_svc+0x58/0x13c [ 222.782718][ T6295] el0_svc+0x78/0x1d0 [ 222.783355][ T6295] el0t_64_sync_handler+0xcc/0xe4 [ 222.784226][ T6295] el0t_64_sync+0x1a0/0x1a4 [ 222.786617][ T6295] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.788927][ T6295] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 222.933081][ T6297] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 222.934350][ T6297] CPU: 1 PID: 6297 Comm: syz.1.658 Not tainted syzkaller #0 [ 222.935431][ T6297] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 222.936971][ T6297] Call trace: [ 222.937480][ T6297] dump_backtrace+0x0/0x458 [ 222.938253][ T6297] show_stack+0x2c/0x3c [ 222.938949][ T6297] __dump_stack+0x30/0x40 [ 222.939680][ T6297] dump_stack_lvl+0xf4/0x15c [ 222.940415][ T6297] dump_stack+0x1c/0x5c [ 222.941077][ T6297] sysfs_create_dir_ns+0x244/0x264 [ 222.941866][ T6297] kobject_add_internal+0x5ac/0xc3c [ 222.942693][ T6297] kobject_init_and_add+0x124/0x190 [ 222.943566][ T6297] gfs2_sys_fs_add+0x200/0x41c [ 222.944388][ T6297] gfs2_fill_super+0xddc/0x1a18 [ 222.945131][ T6297] get_tree_bdev+0x358/0x544 [ 222.945872][ T6297] gfs2_get_tree+0x54/0x1b4 [ 222.946592][ T6297] vfs_get_tree+0x90/0x274 [ 222.947266][ T6297] do_new_mount+0x228/0x810 [ 222.947928][ T6297] path_mount+0x5bc/0x1008 [ 222.948669][ T6297] __arm64_sys_mount+0x514/0x5f0 [ 222.949528][ T6297] invoke_syscall+0x98/0x2b0 [ 222.950295][ T6297] el0_svc_common+0x138/0x258 [ 222.951027][ T6297] do_el0_svc+0x58/0x13c [ 222.951788][ T6297] el0_svc+0x78/0x1d0 [ 222.952474][ T6297] el0t_64_sync_handler+0xcc/0xe4 [ 222.953302][ T6297] el0t_64_sync+0x1a0/0x1a4 [ 222.954422][ T6297] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 222.956404][ T6297] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.097365][ T6299] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.098600][ T6299] CPU: 1 PID: 6299 Comm: syz.1.659 Not tainted syzkaller #0 [ 223.099818][ T6299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.101364][ T6299] Call trace: [ 223.101837][ T6299] dump_backtrace+0x0/0x458 [ 223.102526][ T6299] show_stack+0x2c/0x3c [ 223.103147][ T6299] __dump_stack+0x30/0x40 [ 223.103828][ T6299] dump_stack_lvl+0xf4/0x15c [ 223.104627][ T6299] dump_stack+0x1c/0x5c [ 223.105375][ T6299] sysfs_create_dir_ns+0x244/0x264 [ 223.106198][ T6299] kobject_add_internal+0x5ac/0xc3c [ 223.107098][ T6299] kobject_init_and_add+0x124/0x190 [ 223.107961][ T6299] gfs2_sys_fs_add+0x200/0x41c [ 223.108750][ T6299] gfs2_fill_super+0xddc/0x1a18 [ 223.109568][ T6299] get_tree_bdev+0x358/0x544 [ 223.110344][ T6299] gfs2_get_tree+0x54/0x1b4 [ 223.111084][ T6299] vfs_get_tree+0x90/0x274 [ 223.111820][ T6299] do_new_mount+0x228/0x810 [ 223.112552][ T6299] path_mount+0x5bc/0x1008 [ 223.113292][ T6299] __arm64_sys_mount+0x514/0x5f0 [ 223.114102][ T6299] invoke_syscall+0x98/0x2b0 [ 223.114823][ T6299] el0_svc_common+0x138/0x258 [ 223.115574][ T6299] do_el0_svc+0x58/0x13c [ 223.116303][ T6299] el0_svc+0x78/0x1d0 [ 223.116973][ T6299] el0t_64_sync_handler+0xcc/0xe4 [ 223.117783][ T6299] el0t_64_sync+0x1a0/0x1a4 [ 223.119872][ T6299] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.121862][ T6299] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.298794][ T6301] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.300015][ T6301] CPU: 1 PID: 6301 Comm: syz.1.660 Not tainted syzkaller #0 [ 223.301192][ T6301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.302872][ T6301] Call trace: [ 223.303388][ T6301] dump_backtrace+0x0/0x458 [ 223.304082][ T6301] show_stack+0x2c/0x3c [ 223.304792][ T6301] __dump_stack+0x30/0x40 [ 223.305497][ T6301] dump_stack_lvl+0xf4/0x15c [ 223.306294][ T6301] dump_stack+0x1c/0x5c [ 223.307014][ T6301] sysfs_create_dir_ns+0x244/0x264 [ 223.307926][ T6301] kobject_add_internal+0x5ac/0xc3c [ 223.308741][ T6301] kobject_init_and_add+0x124/0x190 [ 223.309614][ T6301] gfs2_sys_fs_add+0x200/0x41c [ 223.310416][ T6301] gfs2_fill_super+0xddc/0x1a18 [ 223.311266][ T6301] get_tree_bdev+0x358/0x544 [ 223.312061][ T6301] gfs2_get_tree+0x54/0x1b4 [ 223.312867][ T6301] vfs_get_tree+0x90/0x274 [ 223.313556][ T6301] do_new_mount+0x228/0x810 [ 223.314258][ T6301] path_mount+0x5bc/0x1008 [ 223.314937][ T6301] __arm64_sys_mount+0x514/0x5f0 [ 223.315722][ T6301] invoke_syscall+0x98/0x2b0 [ 223.316523][ T6301] el0_svc_common+0x138/0x258 [ 223.317312][ T6301] do_el0_svc+0x58/0x13c [ 223.318015][ T6301] el0_svc+0x78/0x1d0 [ 223.318724][ T6301] el0t_64_sync_handler+0xcc/0xe4 [ 223.319615][ T6301] el0t_64_sync+0x1a0/0x1a4 [ 223.323708][ T6301] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.325958][ T6301] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.562030][ T6303] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.563231][ T6303] CPU: 1 PID: 6303 Comm: syz.1.661 Not tainted syzkaller #0 [ 223.564484][ T6303] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.566162][ T6303] Call trace: [ 223.566758][ T6303] dump_backtrace+0x0/0x458 [ 223.567495][ T6303] show_stack+0x2c/0x3c [ 223.568241][ T6303] __dump_stack+0x30/0x40 [ 223.568942][ T6303] dump_stack_lvl+0xf4/0x15c [ 223.569714][ T6303] dump_stack+0x1c/0x5c [ 223.570353][ T6303] sysfs_create_dir_ns+0x244/0x264 [ 223.571194][ T6303] kobject_add_internal+0x5ac/0xc3c [ 223.572099][ T6303] kobject_init_and_add+0x124/0x190 [ 223.572999][ T6303] gfs2_sys_fs_add+0x200/0x41c [ 223.573830][ T6303] gfs2_fill_super+0xddc/0x1a18 [ 223.574667][ T6303] get_tree_bdev+0x358/0x544 [ 223.575442][ T6303] gfs2_get_tree+0x54/0x1b4 [ 223.576194][ T6303] vfs_get_tree+0x90/0x274 [ 223.576943][ T6303] do_new_mount+0x228/0x810 [ 223.577719][ T6303] path_mount+0x5bc/0x1008 [ 223.578429][ T6303] __arm64_sys_mount+0x514/0x5f0 [ 223.579270][ T6303] invoke_syscall+0x98/0x2b0 [ 223.580020][ T6303] el0_svc_common+0x138/0x258 [ 223.580808][ T6303] do_el0_svc+0x58/0x13c [ 223.581550][ T6303] el0_svc+0x78/0x1d0 [ 223.582264][ T6303] el0t_64_sync_handler+0xcc/0xe4 [ 223.583061][ T6303] el0t_64_sync+0x1a0/0x1a4 [ 223.585329][ T6303] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.587813][ T6303] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.723907][ T6305] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.725017][ T6305] CPU: 1 PID: 6305 Comm: syz.1.662 Not tainted syzkaller #0 [ 223.726306][ T6305] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.727965][ T6305] Call trace: [ 223.728554][ T6305] dump_backtrace+0x0/0x458 [ 223.729313][ T6305] show_stack+0x2c/0x3c [ 223.730062][ T6305] __dump_stack+0x30/0x40 [ 223.730863][ T6305] dump_stack_lvl+0xf4/0x15c [ 223.731666][ T6305] dump_stack+0x1c/0x5c [ 223.732343][ T6305] sysfs_create_dir_ns+0x244/0x264 [ 223.733245][ T6305] kobject_add_internal+0x5ac/0xc3c [ 223.734106][ T6305] kobject_init_and_add+0x124/0x190 [ 223.735055][ T6305] gfs2_sys_fs_add+0x200/0x41c [ 223.735941][ T6305] gfs2_fill_super+0xddc/0x1a18 [ 223.736787][ T6305] get_tree_bdev+0x358/0x544 [ 223.737564][ T6305] gfs2_get_tree+0x54/0x1b4 [ 223.738370][ T6305] vfs_get_tree+0x90/0x274 [ 223.739176][ T6305] do_new_mount+0x228/0x810 [ 223.739960][ T6305] path_mount+0x5bc/0x1008 [ 223.740664][ T6305] __arm64_sys_mount+0x514/0x5f0 [ 223.741452][ T6305] invoke_syscall+0x98/0x2b0 [ 223.742171][ T6305] el0_svc_common+0x138/0x258 [ 223.742958][ T6305] do_el0_svc+0x58/0x13c [ 223.743725][ T6305] el0_svc+0x78/0x1d0 [ 223.744437][ T6305] el0t_64_sync_handler+0xcc/0xe4 [ 223.745324][ T6305] el0t_64_sync+0x1a0/0x1a4 [ 223.747422][ T6305] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.749611][ T6305] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 223.885208][ T6307] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 223.886468][ T6307] CPU: 0 PID: 6307 Comm: syz.1.663 Not tainted syzkaller #0 [ 223.887611][ T6307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 223.889363][ T6307] Call trace: [ 223.889919][ T6307] dump_backtrace+0x0/0x458 [ 223.890677][ T6307] show_stack+0x2c/0x3c [ 223.891377][ T6307] __dump_stack+0x30/0x40 [ 223.892023][ T6307] dump_stack_lvl+0xf4/0x15c [ 223.892739][ T6307] dump_stack+0x1c/0x5c [ 223.893473][ T6307] sysfs_create_dir_ns+0x244/0x264 [ 223.894243][ T6307] kobject_add_internal+0x5ac/0xc3c [ 223.895006][ T6307] kobject_init_and_add+0x124/0x190 [ 223.895817][ T6307] gfs2_sys_fs_add+0x200/0x41c [ 223.896571][ T6307] gfs2_fill_super+0xddc/0x1a18 [ 223.897368][ T6307] get_tree_bdev+0x358/0x544 [ 223.898054][ T6307] gfs2_get_tree+0x54/0x1b4 [ 223.898847][ T6307] vfs_get_tree+0x90/0x274 [ 223.899568][ T6307] do_new_mount+0x228/0x810 [ 223.900309][ T6307] path_mount+0x5bc/0x1008 [ 223.901023][ T6307] __arm64_sys_mount+0x514/0x5f0 [ 223.901784][ T6307] invoke_syscall+0x98/0x2b0 [ 223.902449][ T6307] el0_svc_common+0x138/0x258 [ 223.903149][ T6307] do_el0_svc+0x58/0x13c [ 223.903824][ T6307] el0_svc+0x78/0x1d0 [ 223.904511][ T6307] el0t_64_sync_handler+0xcc/0xe4 [ 223.905378][ T6307] el0t_64_sync+0x1a0/0x1a4 [ 223.906422][ T6307] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 223.908794][ T6307] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.048158][ T6309] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.049300][ T6309] CPU: 1 PID: 6309 Comm: syz.1.664 Not tainted syzkaller #0 [ 224.050368][ T6309] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.051930][ T6309] Call trace: [ 224.052438][ T6309] dump_backtrace+0x0/0x458 [ 224.053246][ T6309] show_stack+0x2c/0x3c [ 224.053925][ T6309] __dump_stack+0x30/0x40 [ 224.054665][ T6309] dump_stack_lvl+0xf4/0x15c [ 224.055392][ T6309] dump_stack+0x1c/0x5c [ 224.056118][ T6309] sysfs_create_dir_ns+0x244/0x264 [ 224.056947][ T6309] kobject_add_internal+0x5ac/0xc3c [ 224.057822][ T6309] kobject_init_and_add+0x124/0x190 [ 224.058710][ T6309] gfs2_sys_fs_add+0x200/0x41c [ 224.059544][ T6309] gfs2_fill_super+0xddc/0x1a18 [ 224.060414][ T6309] get_tree_bdev+0x358/0x544 [ 224.061189][ T6309] gfs2_get_tree+0x54/0x1b4 [ 224.061931][ T6309] vfs_get_tree+0x90/0x274 [ 224.062640][ T6309] do_new_mount+0x228/0x810 [ 224.063308][ T6309] path_mount+0x5bc/0x1008 [ 224.064012][ T6309] __arm64_sys_mount+0x514/0x5f0 [ 224.064842][ T6309] invoke_syscall+0x98/0x2b0 [ 224.065564][ T6309] el0_svc_common+0x138/0x258 [ 224.066332][ T6309] do_el0_svc+0x58/0x13c [ 224.067012][ T6309] el0_svc+0x78/0x1d0 [ 224.067672][ T6309] el0t_64_sync_handler+0xcc/0xe4 [ 224.068525][ T6309] el0t_64_sync+0x1a0/0x1a4 [ 224.069711][ T6309] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.072011][ T6309] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.272429][ T6311] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.274040][ T6311] CPU: 1 PID: 6311 Comm: syz.1.665 Not tainted syzkaller #0 [ 224.275154][ T6311] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.276830][ T6311] Call trace: [ 224.277440][ T6311] dump_backtrace+0x0/0x458 [ 224.278174][ T6311] show_stack+0x2c/0x3c [ 224.278861][ T6311] __dump_stack+0x30/0x40 [ 224.279567][ T6311] dump_stack_lvl+0xf4/0x15c [ 224.280400][ T6311] dump_stack+0x1c/0x5c [ 224.281118][ T6311] sysfs_create_dir_ns+0x244/0x264 [ 224.281963][ T6311] kobject_add_internal+0x5ac/0xc3c [ 224.282791][ T6311] kobject_init_and_add+0x124/0x190 [ 224.283635][ T6311] gfs2_sys_fs_add+0x200/0x41c [ 224.284406][ T6311] gfs2_fill_super+0xddc/0x1a18 [ 224.285243][ T6311] get_tree_bdev+0x358/0x544 [ 224.285960][ T6311] gfs2_get_tree+0x54/0x1b4 [ 224.286674][ T6311] vfs_get_tree+0x90/0x274 [ 224.287410][ T6311] do_new_mount+0x228/0x810 [ 224.288138][ T6311] path_mount+0x5bc/0x1008 [ 224.288881][ T6311] __arm64_sys_mount+0x514/0x5f0 [ 224.289694][ T6311] invoke_syscall+0x98/0x2b0 [ 224.290494][ T6311] el0_svc_common+0x138/0x258 [ 224.291264][ T6311] do_el0_svc+0x58/0x13c [ 224.291952][ T6311] el0_svc+0x78/0x1d0 [ 224.292601][ T6311] el0t_64_sync_handler+0xcc/0xe4 [ 224.293426][ T6311] el0t_64_sync+0x1a0/0x1a4 [ 224.295694][ T6311] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.297837][ T6311] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.469199][ T6313] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.470561][ T6313] CPU: 0 PID: 6313 Comm: syz.1.666 Not tainted syzkaller #0 [ 224.471791][ T6313] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.473331][ T6313] Call trace: [ 224.473870][ T6313] dump_backtrace+0x0/0x458 [ 224.474561][ T6313] show_stack+0x2c/0x3c [ 224.475238][ T6313] __dump_stack+0x30/0x40 [ 224.475872][ T6313] dump_stack_lvl+0xf4/0x15c [ 224.476603][ T6313] dump_stack+0x1c/0x5c [ 224.477280][ T6313] sysfs_create_dir_ns+0x244/0x264 [ 224.478028][ T6313] kobject_add_internal+0x5ac/0xc3c [ 224.478844][ T6313] kobject_init_and_add+0x124/0x190 [ 224.479639][ T6313] gfs2_sys_fs_add+0x200/0x41c [ 224.480348][ T6313] gfs2_fill_super+0xddc/0x1a18 [ 224.481220][ T6313] get_tree_bdev+0x358/0x544 [ 224.482028][ T6313] gfs2_get_tree+0x54/0x1b4 [ 224.482745][ T6313] vfs_get_tree+0x90/0x274 [ 224.483462][ T6313] do_new_mount+0x228/0x810 [ 224.484225][ T6313] path_mount+0x5bc/0x1008 [ 224.484944][ T6313] __arm64_sys_mount+0x514/0x5f0 [ 224.485633][ T6313] invoke_syscall+0x98/0x2b0 [ 224.486541][ T6313] el0_svc_common+0x138/0x258 [ 224.487299][ T6313] do_el0_svc+0x58/0x13c [ 224.488046][ T6313] el0_svc+0x78/0x1d0 [ 224.488726][ T6313] el0t_64_sync_handler+0xcc/0xe4 [ 224.489569][ T6313] el0t_64_sync+0x1a0/0x1a4 [ 224.491892][ T6313] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.494040][ T6313] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:44 executed programs: 653 [ 224.630319][ T6315] set_capacity_and_notify: 16 callbacks suppressed [ 224.630330][ T6315] loop1: detected capacity change from 0 to 32768 [ 224.681536][ T6315] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.682807][ T6315] CPU: 0 PID: 6315 Comm: syz.1.667 Not tainted syzkaller #0 [ 224.684026][ T6315] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.685773][ T6315] Call trace: [ 224.686289][ T6315] dump_backtrace+0x0/0x458 [ 224.687083][ T6315] show_stack+0x2c/0x3c [ 224.687901][ T6315] __dump_stack+0x30/0x40 [ 224.688654][ T6315] dump_stack_lvl+0xf4/0x15c [ 224.689456][ T6315] dump_stack+0x1c/0x5c [ 224.690060][ T6315] sysfs_create_dir_ns+0x244/0x264 [ 224.690876][ T6315] kobject_add_internal+0x5ac/0xc3c [ 224.691658][ T6315] kobject_init_and_add+0x124/0x190 [ 224.692500][ T6315] gfs2_sys_fs_add+0x200/0x41c [ 224.693243][ T6315] gfs2_fill_super+0xddc/0x1a18 [ 224.693995][ T6315] get_tree_bdev+0x358/0x544 [ 224.694739][ T6315] gfs2_get_tree+0x54/0x1b4 [ 224.695530][ T6315] vfs_get_tree+0x90/0x274 [ 224.696248][ T6315] do_new_mount+0x228/0x810 [ 224.697067][ T6315] path_mount+0x5bc/0x1008 [ 224.697811][ T6315] __arm64_sys_mount+0x514/0x5f0 [ 224.698606][ T6315] invoke_syscall+0x98/0x2b0 [ 224.699360][ T6315] el0_svc_common+0x138/0x258 [ 224.700113][ T6315] do_el0_svc+0x58/0x13c [ 224.700775][ T6315] el0_svc+0x78/0x1d0 [ 224.701440][ T6315] el0t_64_sync_handler+0xcc/0xe4 [ 224.702250][ T6315] el0t_64_sync+0x1a0/0x1a4 [ 224.704541][ T6315] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.706762][ T6315] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 224.840686][ T6317] loop1: detected capacity change from 0 to 32768 [ 224.889071][ T6317] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 224.890279][ T6317] CPU: 0 PID: 6317 Comm: syz.1.668 Not tainted syzkaller #0 [ 224.891470][ T6317] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 224.893120][ T6317] Call trace: [ 224.893660][ T6317] dump_backtrace+0x0/0x458 [ 224.894370][ T6317] show_stack+0x2c/0x3c [ 224.895009][ T6317] __dump_stack+0x30/0x40 [ 224.895640][ T6317] dump_stack_lvl+0xf4/0x15c [ 224.896354][ T6317] dump_stack+0x1c/0x5c [ 224.897001][ T6317] sysfs_create_dir_ns+0x244/0x264 [ 224.897750][ T6317] kobject_add_internal+0x5ac/0xc3c [ 224.898540][ T6317] kobject_init_and_add+0x124/0x190 [ 224.899367][ T6317] gfs2_sys_fs_add+0x200/0x41c [ 224.900164][ T6317] gfs2_fill_super+0xddc/0x1a18 [ 224.900998][ T6317] get_tree_bdev+0x358/0x544 [ 224.901778][ T6317] gfs2_get_tree+0x54/0x1b4 [ 224.902541][ T6317] vfs_get_tree+0x90/0x274 [ 224.903314][ T6317] do_new_mount+0x228/0x810 [ 224.904110][ T6317] path_mount+0x5bc/0x1008 [ 224.904880][ T6317] __arm64_sys_mount+0x514/0x5f0 [ 224.905734][ T6317] invoke_syscall+0x98/0x2b0 [ 224.906493][ T6317] el0_svc_common+0x138/0x258 [ 224.907254][ T6317] do_el0_svc+0x58/0x13c [ 224.907960][ T6317] el0_svc+0x78/0x1d0 [ 224.908652][ T6317] el0t_64_sync_handler+0xcc/0xe4 [ 224.909505][ T6317] el0t_64_sync+0x1a0/0x1a4 [ 224.911741][ T6317] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 224.913526][ T6317] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.040795][ T6319] loop1: detected capacity change from 0 to 32768 [ 225.091528][ T6319] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.093020][ T6319] CPU: 0 PID: 6319 Comm: syz.1.669 Not tainted syzkaller #0 [ 225.094307][ T6319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.096021][ T6319] Call trace: [ 225.096572][ T6319] dump_backtrace+0x0/0x458 [ 225.097403][ T6319] show_stack+0x2c/0x3c [ 225.098089][ T6319] __dump_stack+0x30/0x40 [ 225.098825][ T6319] dump_stack_lvl+0xf4/0x15c [ 225.099590][ T6319] dump_stack+0x1c/0x5c [ 225.100309][ T6319] sysfs_create_dir_ns+0x244/0x264 [ 225.101202][ T6319] kobject_add_internal+0x5ac/0xc3c [ 225.102121][ T6319] kobject_init_and_add+0x124/0x190 [ 225.102997][ T6319] gfs2_sys_fs_add+0x200/0x41c [ 225.103787][ T6319] gfs2_fill_super+0xddc/0x1a18 [ 225.104633][ T6319] get_tree_bdev+0x358/0x544 [ 225.105460][ T6319] gfs2_get_tree+0x54/0x1b4 [ 225.106278][ T6319] vfs_get_tree+0x90/0x274 [ 225.107020][ T6319] do_new_mount+0x228/0x810 [ 225.107763][ T6319] path_mount+0x5bc/0x1008 [ 225.108508][ T6319] __arm64_sys_mount+0x514/0x5f0 [ 225.109320][ T6319] invoke_syscall+0x98/0x2b0 [ 225.110152][ T6319] el0_svc_common+0x138/0x258 [ 225.110922][ T6319] do_el0_svc+0x58/0x13c [ 225.111629][ T6319] el0_svc+0x78/0x1d0 [ 225.112298][ T6319] el0t_64_sync_handler+0xcc/0xe4 [ 225.113118][ T6319] el0t_64_sync+0x1a0/0x1a4 [ 225.114858][ T6319] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.117048][ T6319] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.251040][ T6321] loop1: detected capacity change from 0 to 32768 [ 225.299549][ T6321] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.300769][ T6321] CPU: 1 PID: 6321 Comm: syz.1.670 Not tainted syzkaller #0 [ 225.301901][ T6321] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.303511][ T6321] Call trace: [ 225.304013][ T6321] dump_backtrace+0x0/0x458 [ 225.304746][ T6321] show_stack+0x2c/0x3c [ 225.305474][ T6321] __dump_stack+0x30/0x40 [ 225.306194][ T6321] dump_stack_lvl+0xf4/0x15c [ 225.306898][ T6321] dump_stack+0x1c/0x5c [ 225.307536][ T6321] sysfs_create_dir_ns+0x244/0x264 [ 225.308362][ T6321] kobject_add_internal+0x5ac/0xc3c [ 225.309210][ T6321] kobject_init_and_add+0x124/0x190 [ 225.310094][ T6321] gfs2_sys_fs_add+0x200/0x41c [ 225.310898][ T6321] gfs2_fill_super+0xddc/0x1a18 [ 225.311736][ T6321] get_tree_bdev+0x358/0x544 [ 225.312467][ T6321] gfs2_get_tree+0x54/0x1b4 [ 225.313194][ T6321] vfs_get_tree+0x90/0x274 [ 225.313870][ T6321] do_new_mount+0x228/0x810 [ 225.314685][ T6321] path_mount+0x5bc/0x1008 [ 225.315368][ T6321] __arm64_sys_mount+0x514/0x5f0 [ 225.316278][ T6321] invoke_syscall+0x98/0x2b0 [ 225.317079][ T6321] el0_svc_common+0x138/0x258 [ 225.317927][ T6321] do_el0_svc+0x58/0x13c [ 225.318669][ T6321] el0_svc+0x78/0x1d0 [ 225.319375][ T6321] el0t_64_sync_handler+0xcc/0xe4 [ 225.320228][ T6321] el0t_64_sync+0x1a0/0x1a4 [ 225.321202][ T6321] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.324201][ T6321] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.458008][ T6323] loop1: detected capacity change from 0 to 32768 [ 225.552019][ T6323] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.553443][ T6323] CPU: 0 PID: 6323 Comm: syz.1.671 Not tainted syzkaller #0 [ 225.554599][ T6323] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.556189][ T6323] Call trace: [ 225.556722][ T6323] dump_backtrace+0x0/0x458 [ 225.557424][ T6323] show_stack+0x2c/0x3c [ 225.558084][ T6323] __dump_stack+0x30/0x40 [ 225.558798][ T6323] dump_stack_lvl+0xf4/0x15c [ 225.559550][ T6323] dump_stack+0x1c/0x5c [ 225.560236][ T6323] sysfs_create_dir_ns+0x244/0x264 [ 225.561013][ T6323] kobject_add_internal+0x5ac/0xc3c [ 225.561842][ T6323] kobject_init_and_add+0x124/0x190 [ 225.562672][ T6323] gfs2_sys_fs_add+0x200/0x41c [ 225.563444][ T6323] gfs2_fill_super+0xddc/0x1a18 [ 225.564241][ T6323] get_tree_bdev+0x358/0x544 [ 225.565004][ T6323] gfs2_get_tree+0x54/0x1b4 [ 225.565787][ T6323] vfs_get_tree+0x90/0x274 [ 225.566538][ T6323] do_new_mount+0x228/0x810 [ 225.567362][ T6323] path_mount+0x5bc/0x1008 [ 225.568125][ T6323] __arm64_sys_mount+0x514/0x5f0 [ 225.568931][ T6323] invoke_syscall+0x98/0x2b0 [ 225.569733][ T6323] el0_svc_common+0x138/0x258 [ 225.570526][ T6323] do_el0_svc+0x58/0x13c [ 225.571269][ T6323] el0_svc+0x78/0x1d0 [ 225.571928][ T6323] el0t_64_sync_handler+0xcc/0xe4 [ 225.572800][ T6323] el0t_64_sync+0x1a0/0x1a4 [ 225.573678][ T6323] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.575910][ T6323] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.705259][ T6325] loop1: detected capacity change from 0 to 32768 [ 225.738685][ T6325] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.740023][ T6325] CPU: 1 PID: 6325 Comm: syz.1.672 Not tainted syzkaller #0 [ 225.741163][ T6325] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.742733][ T6325] Call trace: [ 225.743240][ T6325] dump_backtrace+0x0/0x458 [ 225.744029][ T6325] show_stack+0x2c/0x3c [ 225.744694][ T6325] __dump_stack+0x30/0x40 [ 225.745414][ T6325] dump_stack_lvl+0xf4/0x15c [ 225.746255][ T6325] dump_stack+0x1c/0x5c [ 225.746904][ T6325] sysfs_create_dir_ns+0x244/0x264 [ 225.747794][ T6325] kobject_add_internal+0x5ac/0xc3c [ 225.748655][ T6325] kobject_init_and_add+0x124/0x190 [ 225.749527][ T6325] gfs2_sys_fs_add+0x200/0x41c [ 225.750400][ T6325] gfs2_fill_super+0xddc/0x1a18 [ 225.751236][ T6325] get_tree_bdev+0x358/0x544 [ 225.752088][ T6325] gfs2_get_tree+0x54/0x1b4 [ 225.752889][ T6325] vfs_get_tree+0x90/0x274 [ 225.753587][ T6325] do_new_mount+0x228/0x810 [ 225.754321][ T6325] path_mount+0x5bc/0x1008 [ 225.755023][ T6325] __arm64_sys_mount+0x514/0x5f0 [ 225.755769][ T6325] invoke_syscall+0x98/0x2b0 [ 225.756544][ T6325] el0_svc_common+0x138/0x258 [ 225.757268][ T6325] do_el0_svc+0x58/0x13c [ 225.758000][ T6325] el0_svc+0x78/0x1d0 [ 225.758686][ T6325] el0t_64_sync_handler+0xcc/0xe4 [ 225.759531][ T6325] el0t_64_sync+0x1a0/0x1a4 [ 225.761585][ T6325] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 225.763471][ T6325] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 225.942996][ T6327] loop1: detected capacity change from 0 to 32768 [ 225.981910][ T6327] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 225.983289][ T6327] CPU: 0 PID: 6327 Comm: syz.1.673 Not tainted syzkaller #0 [ 225.984405][ T6327] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 225.986043][ T6327] Call trace: [ 225.986528][ T6327] dump_backtrace+0x0/0x458 [ 225.987214][ T6327] show_stack+0x2c/0x3c [ 225.987890][ T6327] __dump_stack+0x30/0x40 [ 225.988642][ T6327] dump_stack_lvl+0xf4/0x15c [ 225.989432][ T6327] dump_stack+0x1c/0x5c [ 225.990145][ T6327] sysfs_create_dir_ns+0x244/0x264 [ 225.991025][ T6327] kobject_add_internal+0x5ac/0xc3c [ 225.991865][ T6327] kobject_init_and_add+0x124/0x190 [ 225.992796][ T6327] gfs2_sys_fs_add+0x200/0x41c [ 225.993587][ T6327] gfs2_fill_super+0xddc/0x1a18 [ 225.994378][ T6327] get_tree_bdev+0x358/0x544 [ 225.995231][ T6327] gfs2_get_tree+0x54/0x1b4 [ 225.995994][ T6327] vfs_get_tree+0x90/0x274 [ 225.996711][ T6327] do_new_mount+0x228/0x810 [ 225.997490][ T6327] path_mount+0x5bc/0x1008 [ 225.998184][ T6327] __arm64_sys_mount+0x514/0x5f0 [ 225.999015][ T6327] invoke_syscall+0x98/0x2b0 [ 225.999773][ T6327] el0_svc_common+0x138/0x258 [ 226.000543][ T6327] do_el0_svc+0x58/0x13c [ 226.001224][ T6327] el0_svc+0x78/0x1d0 [ 226.001882][ T6327] el0t_64_sync_handler+0xcc/0xe4 [ 226.002654][ T6327] el0t_64_sync+0x1a0/0x1a4 [ 226.004201][ T6327] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.006206][ T6327] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.138027][ T6329] loop1: detected capacity change from 0 to 32768 [ 226.188487][ T6329] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.189768][ T6329] CPU: 0 PID: 6329 Comm: syz.1.674 Not tainted syzkaller #0 [ 226.190970][ T6329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.192607][ T6329] Call trace: [ 226.193091][ T6329] dump_backtrace+0x0/0x458 [ 226.193866][ T6329] show_stack+0x2c/0x3c [ 226.194590][ T6329] __dump_stack+0x30/0x40 [ 226.195343][ T6329] dump_stack_lvl+0xf4/0x15c [ 226.196131][ T6329] dump_stack+0x1c/0x5c [ 226.196845][ T6329] sysfs_create_dir_ns+0x244/0x264 [ 226.197747][ T6329] kobject_add_internal+0x5ac/0xc3c [ 226.198608][ T6329] kobject_init_and_add+0x124/0x190 [ 226.199431][ T6329] gfs2_sys_fs_add+0x200/0x41c [ 226.200318][ T6329] gfs2_fill_super+0xddc/0x1a18 [ 226.201191][ T6329] get_tree_bdev+0x358/0x544 [ 226.201944][ T6329] gfs2_get_tree+0x54/0x1b4 [ 226.202754][ T6329] vfs_get_tree+0x90/0x274 [ 226.203518][ T6329] do_new_mount+0x228/0x810 [ 226.204279][ T6329] path_mount+0x5bc/0x1008 [ 226.205034][ T6329] __arm64_sys_mount+0x514/0x5f0 [ 226.205860][ T6329] invoke_syscall+0x98/0x2b0 [ 226.206654][ T6329] el0_svc_common+0x138/0x258 [ 226.207440][ T6329] do_el0_svc+0x58/0x13c [ 226.208109][ T6329] el0_svc+0x78/0x1d0 [ 226.208761][ T6329] el0t_64_sync_handler+0xcc/0xe4 [ 226.209547][ T6329] el0t_64_sync+0x1a0/0x1a4 [ 226.211113][ T6329] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.213429][ T6329] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.347080][ T6331] loop1: detected capacity change from 0 to 32768 [ 226.402789][ T6331] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.404073][ T6331] CPU: 0 PID: 6331 Comm: syz.1.675 Not tainted syzkaller #0 [ 226.405324][ T6331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.407040][ T6331] Call trace: [ 226.407608][ T6331] dump_backtrace+0x0/0x458 [ 226.408356][ T6331] show_stack+0x2c/0x3c [ 226.409075][ T6331] __dump_stack+0x30/0x40 [ 226.409725][ T6331] dump_stack_lvl+0xf4/0x15c [ 226.410412][ T6331] dump_stack+0x1c/0x5c [ 226.411031][ T6331] sysfs_create_dir_ns+0x244/0x264 [ 226.411784][ T6331] kobject_add_internal+0x5ac/0xc3c [ 226.412582][ T6331] kobject_init_and_add+0x124/0x190 [ 226.413373][ T6331] gfs2_sys_fs_add+0x200/0x41c [ 226.414105][ T6331] gfs2_fill_super+0xddc/0x1a18 [ 226.414834][ T6331] get_tree_bdev+0x358/0x544 [ 226.415537][ T6331] gfs2_get_tree+0x54/0x1b4 [ 226.416167][ T6331] vfs_get_tree+0x90/0x274 [ 226.416797][ T6331] do_new_mount+0x228/0x810 [ 226.417507][ T6331] path_mount+0x5bc/0x1008 [ 226.418211][ T6331] __arm64_sys_mount+0x514/0x5f0 [ 226.418907][ T6331] invoke_syscall+0x98/0x2b0 [ 226.419571][ T6331] el0_svc_common+0x138/0x258 [ 226.420290][ T6331] do_el0_svc+0x58/0x13c [ 226.420962][ T6331] el0_svc+0x78/0x1d0 [ 226.421544][ T6331] el0t_64_sync_handler+0xcc/0xe4 [ 226.422345][ T6331] el0t_64_sync+0x1a0/0x1a4 [ 226.425111][ T6331] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.427213][ T6331] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.567633][ T6333] loop1: detected capacity change from 0 to 32768 [ 226.622589][ T6333] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.623855][ T6333] CPU: 0 PID: 6333 Comm: syz.1.676 Not tainted syzkaller #0 [ 226.625033][ T6333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.626681][ T6333] Call trace: [ 226.627177][ T6333] dump_backtrace+0x0/0x458 [ 226.627923][ T6333] show_stack+0x2c/0x3c [ 226.628545][ T6333] __dump_stack+0x30/0x40 [ 226.629256][ T6333] dump_stack_lvl+0xf4/0x15c [ 226.630049][ T6333] dump_stack+0x1c/0x5c [ 226.630777][ T6333] sysfs_create_dir_ns+0x244/0x264 [ 226.631664][ T6333] kobject_add_internal+0x5ac/0xc3c [ 226.632568][ T6333] kobject_init_and_add+0x124/0x190 [ 226.633527][ T6333] gfs2_sys_fs_add+0x200/0x41c [ 226.634380][ T6333] gfs2_fill_super+0xddc/0x1a18 [ 226.635163][ T6333] get_tree_bdev+0x358/0x544 [ 226.635914][ T6333] gfs2_get_tree+0x54/0x1b4 [ 226.636671][ T6333] vfs_get_tree+0x90/0x274 [ 226.637409][ T6333] do_new_mount+0x228/0x810 [ 226.638176][ T6333] path_mount+0x5bc/0x1008 [ 226.638902][ T6333] __arm64_sys_mount+0x514/0x5f0 [ 226.639694][ T6333] invoke_syscall+0x98/0x2b0 [ 226.640425][ T6333] el0_svc_common+0x138/0x258 [ 226.641184][ T6333] do_el0_svc+0x58/0x13c [ 226.641929][ T6333] el0_svc+0x78/0x1d0 [ 226.642587][ T6333] el0t_64_sync_handler+0xcc/0xe4 [ 226.643438][ T6333] el0t_64_sync+0x1a0/0x1a4 [ 226.645676][ T6333] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.647862][ T6333] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 226.848586][ T6335] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 226.849807][ T6335] CPU: 0 PID: 6335 Comm: syz.1.677 Not tainted syzkaller #0 [ 226.850957][ T6335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 226.852820][ T6335] Call trace: [ 226.853369][ T6335] dump_backtrace+0x0/0x458 [ 226.854159][ T6335] show_stack+0x2c/0x3c [ 226.854837][ T6335] __dump_stack+0x30/0x40 [ 226.855606][ T6335] dump_stack_lvl+0xf4/0x15c [ 226.856454][ T6335] dump_stack+0x1c/0x5c [ 226.857145][ T6335] sysfs_create_dir_ns+0x244/0x264 [ 226.858021][ T6335] kobject_add_internal+0x5ac/0xc3c [ 226.858876][ T6335] kobject_init_and_add+0x124/0x190 [ 226.859731][ T6335] gfs2_sys_fs_add+0x200/0x41c [ 226.860558][ T6335] gfs2_fill_super+0xddc/0x1a18 [ 226.861383][ T6335] get_tree_bdev+0x358/0x544 [ 226.862134][ T6335] gfs2_get_tree+0x54/0x1b4 [ 226.862890][ T6335] vfs_get_tree+0x90/0x274 [ 226.863602][ T6335] do_new_mount+0x228/0x810 [ 226.864350][ T6335] path_mount+0x5bc/0x1008 [ 226.865040][ T6335] __arm64_sys_mount+0x514/0x5f0 [ 226.865835][ T6335] invoke_syscall+0x98/0x2b0 [ 226.866579][ T6335] el0_svc_common+0x138/0x258 [ 226.867301][ T6335] do_el0_svc+0x58/0x13c [ 226.867985][ T6335] el0_svc+0x78/0x1d0 [ 226.868608][ T6335] el0t_64_sync_handler+0xcc/0xe4 [ 226.869486][ T6335] el0t_64_sync+0x1a0/0x1a4 [ 226.871637][ T6335] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 226.873789][ T6335] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.058605][ T6337] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.059913][ T6337] CPU: 0 PID: 6337 Comm: syz.1.678 Not tainted syzkaller #0 [ 227.061112][ T6337] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.062733][ T6337] Call trace: [ 227.063302][ T6337] dump_backtrace+0x0/0x458 [ 227.064031][ T6337] show_stack+0x2c/0x3c [ 227.064719][ T6337] __dump_stack+0x30/0x40 [ 227.065439][ T6337] dump_stack_lvl+0xf4/0x15c [ 227.066217][ T6337] dump_stack+0x1c/0x5c [ 227.066881][ T6337] sysfs_create_dir_ns+0x244/0x264 [ 227.067732][ T6337] kobject_add_internal+0x5ac/0xc3c [ 227.068549][ T6337] kobject_init_and_add+0x124/0x190 [ 227.069401][ T6337] gfs2_sys_fs_add+0x200/0x41c [ 227.070241][ T6337] gfs2_fill_super+0xddc/0x1a18 [ 227.071074][ T6337] get_tree_bdev+0x358/0x544 [ 227.071877][ T6337] gfs2_get_tree+0x54/0x1b4 [ 227.072560][ T6337] vfs_get_tree+0x90/0x274 [ 227.073249][ T6337] do_new_mount+0x228/0x810 [ 227.073954][ T6337] path_mount+0x5bc/0x1008 [ 227.074639][ T6337] __arm64_sys_mount+0x514/0x5f0 [ 227.075496][ T6337] invoke_syscall+0x98/0x2b0 [ 227.076244][ T6337] el0_svc_common+0x138/0x258 [ 227.077011][ T6337] do_el0_svc+0x58/0x13c [ 227.077725][ T6337] el0_svc+0x78/0x1d0 [ 227.078419][ T6337] el0t_64_sync_handler+0xcc/0xe4 [ 227.079290][ T6337] el0t_64_sync+0x1a0/0x1a4 [ 227.081422][ T6337] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.083398][ T6337] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.278557][ T6339] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.279746][ T6339] CPU: 0 PID: 6339 Comm: syz.1.679 Not tainted syzkaller #0 [ 227.280996][ T6339] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.282552][ T6339] Call trace: [ 227.283101][ T6339] dump_backtrace+0x0/0x458 [ 227.283824][ T6339] show_stack+0x2c/0x3c [ 227.284548][ T6339] __dump_stack+0x30/0x40 [ 227.285257][ T6339] dump_stack_lvl+0xf4/0x15c [ 227.286004][ T6339] dump_stack+0x1c/0x5c [ 227.286730][ T6339] sysfs_create_dir_ns+0x244/0x264 [ 227.287526][ T6339] kobject_add_internal+0x5ac/0xc3c [ 227.288399][ T6339] kobject_init_and_add+0x124/0x190 [ 227.289271][ T6339] gfs2_sys_fs_add+0x200/0x41c [ 227.289998][ T6339] gfs2_fill_super+0xddc/0x1a18 [ 227.290747][ T6339] get_tree_bdev+0x358/0x544 [ 227.291497][ T6339] gfs2_get_tree+0x54/0x1b4 [ 227.292249][ T6339] vfs_get_tree+0x90/0x274 [ 227.293020][ T6339] do_new_mount+0x228/0x810 [ 227.293755][ T6339] path_mount+0x5bc/0x1008 [ 227.294489][ T6339] __arm64_sys_mount+0x514/0x5f0 [ 227.295373][ T6339] invoke_syscall+0x98/0x2b0 [ 227.296150][ T6339] el0_svc_common+0x138/0x258 [ 227.296988][ T6339] do_el0_svc+0x58/0x13c [ 227.297685][ T6339] el0_svc+0x78/0x1d0 [ 227.298340][ T6339] el0t_64_sync_handler+0xcc/0xe4 [ 227.299148][ T6339] el0t_64_sync+0x1a0/0x1a4 [ 227.301808][ T6339] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.304011][ T6339] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.476439][ T6341] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.477831][ T6341] CPU: 0 PID: 6341 Comm: syz.1.680 Not tainted syzkaller #0 [ 227.478891][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.480481][ T6341] Call trace: [ 227.481021][ T6341] dump_backtrace+0x0/0x458 [ 227.481776][ T6341] show_stack+0x2c/0x3c [ 227.482474][ T6341] __dump_stack+0x30/0x40 [ 227.483180][ T6341] dump_stack_lvl+0xf4/0x15c [ 227.483932][ T6341] dump_stack+0x1c/0x5c [ 227.484566][ T6341] sysfs_create_dir_ns+0x244/0x264 [ 227.485363][ T6341] kobject_add_internal+0x5ac/0xc3c [ 227.486158][ T6341] kobject_init_and_add+0x124/0x190 [ 227.486958][ T6341] gfs2_sys_fs_add+0x200/0x41c [ 227.487762][ T6341] gfs2_fill_super+0xddc/0x1a18 [ 227.488562][ T6341] get_tree_bdev+0x358/0x544 [ 227.489282][ T6341] gfs2_get_tree+0x54/0x1b4 [ 227.489988][ T6341] vfs_get_tree+0x90/0x274 [ 227.490742][ T6341] do_new_mount+0x228/0x810 [ 227.491430][ T6341] path_mount+0x5bc/0x1008 [ 227.492128][ T6341] __arm64_sys_mount+0x514/0x5f0 [ 227.492904][ T6341] invoke_syscall+0x98/0x2b0 [ 227.493613][ T6341] el0_svc_common+0x138/0x258 [ 227.494422][ T6341] do_el0_svc+0x58/0x13c [ 227.495140][ T6341] el0_svc+0x78/0x1d0 [ 227.495828][ T6341] el0t_64_sync_handler+0xcc/0xe4 [ 227.496599][ T6341] el0t_64_sync+0x1a0/0x1a4 [ 227.498789][ T6341] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.500820][ T6341] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.658606][ T6343] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.659889][ T6343] CPU: 1 PID: 6343 Comm: syz.1.681 Not tainted syzkaller #0 [ 227.661011][ T6343] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.662742][ T6343] Call trace: [ 227.663319][ T6343] dump_backtrace+0x0/0x458 [ 227.664048][ T6343] show_stack+0x2c/0x3c [ 227.664730][ T6343] __dump_stack+0x30/0x40 [ 227.665478][ T6343] dump_stack_lvl+0xf4/0x15c [ 227.666284][ T6343] dump_stack+0x1c/0x5c [ 227.666959][ T6343] sysfs_create_dir_ns+0x244/0x264 [ 227.667831][ T6343] kobject_add_internal+0x5ac/0xc3c [ 227.668712][ T6343] kobject_init_and_add+0x124/0x190 [ 227.669480][ T6343] gfs2_sys_fs_add+0x200/0x41c [ 227.670199][ T6343] gfs2_fill_super+0xddc/0x1a18 [ 227.671015][ T6343] get_tree_bdev+0x358/0x544 [ 227.671746][ T6343] gfs2_get_tree+0x54/0x1b4 [ 227.672428][ T6343] vfs_get_tree+0x90/0x274 [ 227.673150][ T6343] do_new_mount+0x228/0x810 [ 227.673814][ T6343] path_mount+0x5bc/0x1008 [ 227.674468][ T6343] __arm64_sys_mount+0x514/0x5f0 [ 227.675229][ T6343] invoke_syscall+0x98/0x2b0 [ 227.675926][ T6343] el0_svc_common+0x138/0x258 [ 227.676714][ T6343] do_el0_svc+0x58/0x13c [ 227.677366][ T6343] el0_svc+0x78/0x1d0 [ 227.678000][ T6343] el0t_64_sync_handler+0xcc/0xe4 [ 227.678863][ T6343] el0t_64_sync+0x1a0/0x1a4 [ 227.679850][ T6343] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.681984][ T6343] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 227.928871][ T6345] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 227.930247][ T6345] CPU: 0 PID: 6345 Comm: syz.1.682 Not tainted syzkaller #0 [ 227.931465][ T6345] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 227.933068][ T6345] Call trace: [ 227.933648][ T6345] dump_backtrace+0x0/0x458 [ 227.934327][ T6345] show_stack+0x2c/0x3c [ 227.935049][ T6345] __dump_stack+0x30/0x40 [ 227.935803][ T6345] dump_stack_lvl+0xf4/0x15c [ 227.936592][ T6345] dump_stack+0x1c/0x5c [ 227.937302][ T6345] sysfs_create_dir_ns+0x244/0x264 [ 227.938201][ T6345] kobject_add_internal+0x5ac/0xc3c [ 227.939098][ T6345] kobject_init_and_add+0x124/0x190 [ 227.939961][ T6345] gfs2_sys_fs_add+0x200/0x41c [ 227.940764][ T6345] gfs2_fill_super+0xddc/0x1a18 [ 227.941533][ T6345] get_tree_bdev+0x358/0x544 [ 227.942265][ T6345] gfs2_get_tree+0x54/0x1b4 [ 227.943037][ T6345] vfs_get_tree+0x90/0x274 [ 227.943748][ T6345] do_new_mount+0x228/0x810 [ 227.944485][ T6345] path_mount+0x5bc/0x1008 [ 227.945212][ T6345] __arm64_sys_mount+0x514/0x5f0 [ 227.946052][ T6345] invoke_syscall+0x98/0x2b0 [ 227.946786][ T6345] el0_svc_common+0x138/0x258 [ 227.947509][ T6345] do_el0_svc+0x58/0x13c [ 227.948227][ T6345] el0_svc+0x78/0x1d0 [ 227.948862][ T6345] el0t_64_sync_handler+0xcc/0xe4 [ 227.949660][ T6345] el0t_64_sync+0x1a0/0x1a4 [ 227.950945][ T6345] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 227.953169][ T6345] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.133387][ T6347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.134679][ T6347] CPU: 0 PID: 6347 Comm: syz.1.683 Not tainted syzkaller #0 [ 228.135862][ T6347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.137446][ T6347] Call trace: [ 228.137964][ T6347] dump_backtrace+0x0/0x458 [ 228.138708][ T6347] show_stack+0x2c/0x3c [ 228.139320][ T6347] __dump_stack+0x30/0x40 [ 228.139963][ T6347] dump_stack_lvl+0xf4/0x15c [ 228.140698][ T6347] dump_stack+0x1c/0x5c [ 228.141341][ T6347] sysfs_create_dir_ns+0x244/0x264 [ 228.142100][ T6347] kobject_add_internal+0x5ac/0xc3c [ 228.142951][ T6347] kobject_init_and_add+0x124/0x190 [ 228.143786][ T6347] gfs2_sys_fs_add+0x200/0x41c [ 228.144571][ T6347] gfs2_fill_super+0xddc/0x1a18 [ 228.145412][ T6347] get_tree_bdev+0x358/0x544 [ 228.146213][ T6347] gfs2_get_tree+0x54/0x1b4 [ 228.146955][ T6347] vfs_get_tree+0x90/0x274 [ 228.147688][ T6347] do_new_mount+0x228/0x810 [ 228.148455][ T6347] path_mount+0x5bc/0x1008 [ 228.149215][ T6347] __arm64_sys_mount+0x514/0x5f0 [ 228.150046][ T6347] invoke_syscall+0x98/0x2b0 [ 228.150857][ T6347] el0_svc_common+0x138/0x258 [ 228.151682][ T6347] do_el0_svc+0x58/0x13c [ 228.152433][ T6347] el0_svc+0x78/0x1d0 [ 228.153151][ T6347] el0t_64_sync_handler+0xcc/0xe4 [ 228.153984][ T6347] el0t_64_sync+0x1a0/0x1a4 [ 228.156162][ T6347] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.158456][ T6347] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.377398][ T6349] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.378694][ T6349] CPU: 0 PID: 6349 Comm: syz.1.684 Not tainted syzkaller #0 [ 228.379836][ T6349] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.381396][ T6349] Call trace: [ 228.381865][ T6349] dump_backtrace+0x0/0x458 [ 228.382628][ T6349] show_stack+0x2c/0x3c [ 228.383294][ T6349] __dump_stack+0x30/0x40 [ 228.384032][ T6349] dump_stack_lvl+0xf4/0x15c [ 228.384788][ T6349] dump_stack+0x1c/0x5c [ 228.385501][ T6349] sysfs_create_dir_ns+0x244/0x264 [ 228.386328][ T6349] kobject_add_internal+0x5ac/0xc3c [ 228.387171][ T6349] kobject_init_and_add+0x124/0x190 [ 228.388101][ T6349] gfs2_sys_fs_add+0x200/0x41c [ 228.389035][ T6349] gfs2_fill_super+0xddc/0x1a18 [ 228.389793][ T6349] get_tree_bdev+0x358/0x544 [ 228.390495][ T6349] gfs2_get_tree+0x54/0x1b4 [ 228.391254][ T6349] vfs_get_tree+0x90/0x274 [ 228.391948][ T6349] do_new_mount+0x228/0x810 [ 228.392636][ T6349] path_mount+0x5bc/0x1008 [ 228.393361][ T6349] __arm64_sys_mount+0x514/0x5f0 [ 228.394210][ T6349] invoke_syscall+0x98/0x2b0 [ 228.395178][ T6349] el0_svc_common+0x138/0x258 [ 228.395997][ T6349] do_el0_svc+0x58/0x13c [ 228.396700][ T6349] el0_svc+0x78/0x1d0 [ 228.397411][ T6349] el0t_64_sync_handler+0xcc/0xe4 [ 228.398263][ T6349] el0t_64_sync+0x1a0/0x1a4 [ 228.400563][ T6349] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.402821][ T6349] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.623626][ T6351] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.624920][ T6351] CPU: 1 PID: 6351 Comm: syz.1.685 Not tainted syzkaller #0 [ 228.626056][ T6351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.627628][ T6351] Call trace: [ 228.628156][ T6351] dump_backtrace+0x0/0x458 [ 228.628868][ T6351] show_stack+0x2c/0x3c [ 228.629631][ T6351] __dump_stack+0x30/0x40 [ 228.630364][ T6351] dump_stack_lvl+0xf4/0x15c [ 228.631111][ T6351] dump_stack+0x1c/0x5c [ 228.631815][ T6351] sysfs_create_dir_ns+0x244/0x264 [ 228.632707][ T6351] kobject_add_internal+0x5ac/0xc3c [ 228.633533][ T6351] kobject_init_and_add+0x124/0x190 [ 228.634406][ T6351] gfs2_sys_fs_add+0x200/0x41c [ 228.635198][ T6351] gfs2_fill_super+0xddc/0x1a18 [ 228.635958][ T6351] get_tree_bdev+0x358/0x544 [ 228.636651][ T6351] gfs2_get_tree+0x54/0x1b4 [ 228.637329][ T6351] vfs_get_tree+0x90/0x274 [ 228.638109][ T6351] do_new_mount+0x228/0x810 [ 228.638874][ T6351] path_mount+0x5bc/0x1008 [ 228.639622][ T6351] __arm64_sys_mount+0x514/0x5f0 [ 228.640418][ T6351] invoke_syscall+0x98/0x2b0 [ 228.641227][ T6351] el0_svc_common+0x138/0x258 [ 228.642035][ T6351] do_el0_svc+0x58/0x13c [ 228.642784][ T6351] el0_svc+0x78/0x1d0 [ 228.643444][ T6351] el0t_64_sync_handler+0xcc/0xe4 [ 228.644380][ T6351] el0t_64_sync+0x1a0/0x1a4 [ 228.646871][ T6351] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.648968][ T6351] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 228.812163][ T6353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 228.813439][ T6353] CPU: 0 PID: 6353 Comm: syz.1.686 Not tainted syzkaller #0 [ 228.814522][ T6353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 228.816087][ T6353] Call trace: [ 228.816635][ T6353] dump_backtrace+0x0/0x458 [ 228.817386][ T6353] show_stack+0x2c/0x3c [ 228.818032][ T6353] __dump_stack+0x30/0x40 [ 228.818693][ T6353] dump_stack_lvl+0xf4/0x15c [ 228.819387][ T6353] dump_stack+0x1c/0x5c [ 228.820024][ T6353] sysfs_create_dir_ns+0x244/0x264 [ 228.820856][ T6353] kobject_add_internal+0x5ac/0xc3c [ 228.821735][ T6353] kobject_init_and_add+0x124/0x190 [ 228.822564][ T6353] gfs2_sys_fs_add+0x200/0x41c [ 228.823312][ T6353] gfs2_fill_super+0xddc/0x1a18 [ 228.824036][ T6353] get_tree_bdev+0x358/0x544 [ 228.824785][ T6353] gfs2_get_tree+0x54/0x1b4 [ 228.825541][ T6353] vfs_get_tree+0x90/0x274 [ 228.826333][ T6353] do_new_mount+0x228/0x810 [ 228.827126][ T6353] path_mount+0x5bc/0x1008 [ 228.827909][ T6353] __arm64_sys_mount+0x514/0x5f0 [ 228.828818][ T6353] invoke_syscall+0x98/0x2b0 [ 228.829540][ T6353] el0_svc_common+0x138/0x258 [ 228.830319][ T6353] do_el0_svc+0x58/0x13c [ 228.831000][ T6353] el0_svc+0x78/0x1d0 [ 228.831695][ T6353] el0t_64_sync_handler+0xcc/0xe4 [ 228.832491][ T6353] el0t_64_sync+0x1a0/0x1a4 [ 228.833927][ T6353] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 228.836089][ T6353] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.003222][ T6355] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.004558][ T6355] CPU: 0 PID: 6355 Comm: syz.1.687 Not tainted syzkaller #0 [ 229.005750][ T6355] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.007515][ T6355] Call trace: [ 229.008078][ T6355] dump_backtrace+0x0/0x458 [ 229.008838][ T6355] show_stack+0x2c/0x3c [ 229.009544][ T6355] __dump_stack+0x30/0x40 [ 229.010268][ T6355] dump_stack_lvl+0xf4/0x15c [ 229.011028][ T6355] dump_stack+0x1c/0x5c [ 229.011686][ T6355] sysfs_create_dir_ns+0x244/0x264 [ 229.012536][ T6355] kobject_add_internal+0x5ac/0xc3c [ 229.013329][ T6355] kobject_init_and_add+0x124/0x190 [ 229.014160][ T6355] gfs2_sys_fs_add+0x200/0x41c [ 229.014891][ T6355] gfs2_fill_super+0xddc/0x1a18 [ 229.015659][ T6355] get_tree_bdev+0x358/0x544 [ 229.016322][ T6355] gfs2_get_tree+0x54/0x1b4 [ 229.017109][ T6355] vfs_get_tree+0x90/0x274 [ 229.017819][ T6355] do_new_mount+0x228/0x810 [ 229.018521][ T6355] path_mount+0x5bc/0x1008 [ 229.019227][ T6355] __arm64_sys_mount+0x514/0x5f0 [ 229.020064][ T6355] invoke_syscall+0x98/0x2b0 [ 229.020841][ T6355] el0_svc_common+0x138/0x258 [ 229.021595][ T6355] do_el0_svc+0x58/0x13c [ 229.022269][ T6355] el0_svc+0x78/0x1d0 [ 229.022952][ T6355] el0t_64_sync_handler+0xcc/0xe4 [ 229.023849][ T6355] el0t_64_sync+0x1a0/0x1a4 [ 229.025433][ T6355] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.027582][ T6355] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.199169][ T6357] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.200473][ T6357] CPU: 1 PID: 6357 Comm: syz.1.688 Not tainted syzkaller #0 [ 229.201682][ T6357] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.203334][ T6357] Call trace: [ 229.203891][ T6357] dump_backtrace+0x0/0x458 [ 229.204639][ T6357] show_stack+0x2c/0x3c [ 229.205315][ T6357] __dump_stack+0x30/0x40 [ 229.206060][ T6357] dump_stack_lvl+0xf4/0x15c [ 229.206774][ T6357] dump_stack+0x1c/0x5c [ 229.207416][ T6357] sysfs_create_dir_ns+0x244/0x264 [ 229.208261][ T6357] kobject_add_internal+0x5ac/0xc3c [ 229.209145][ T6357] kobject_init_and_add+0x124/0x190 [ 229.210037][ T6357] gfs2_sys_fs_add+0x200/0x41c [ 229.210853][ T6357] gfs2_fill_super+0xddc/0x1a18 [ 229.211652][ T6357] get_tree_bdev+0x358/0x544 [ 229.212407][ T6357] gfs2_get_tree+0x54/0x1b4 [ 229.213128][ T6357] vfs_get_tree+0x90/0x274 [ 229.213824][ T6357] do_new_mount+0x228/0x810 [ 229.214620][ T6357] path_mount+0x5bc/0x1008 [ 229.215398][ T6357] __arm64_sys_mount+0x514/0x5f0 [ 229.216248][ T6357] invoke_syscall+0x98/0x2b0 [ 229.217027][ T6357] el0_svc_common+0x138/0x258 [ 229.217772][ T6357] do_el0_svc+0x58/0x13c [ 229.218437][ T6357] el0_svc+0x78/0x1d0 [ 229.219099][ T6357] el0t_64_sync_handler+0xcc/0xe4 [ 229.219954][ T6357] el0t_64_sync+0x1a0/0x1a4 [ 229.222098][ T6357] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.224335][ T6357] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.417463][ T6359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.418739][ T6359] CPU: 0 PID: 6359 Comm: syz.1.689 Not tainted syzkaller #0 [ 229.419865][ T6359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.421467][ T6359] Call trace: [ 229.421963][ T6359] dump_backtrace+0x0/0x458 [ 229.422658][ T6359] show_stack+0x2c/0x3c [ 229.423319][ T6359] __dump_stack+0x30/0x40 [ 229.424031][ T6359] dump_stack_lvl+0xf4/0x15c [ 229.424747][ T6359] dump_stack+0x1c/0x5c [ 229.425394][ T6359] sysfs_create_dir_ns+0x244/0x264 [ 229.426211][ T6359] kobject_add_internal+0x5ac/0xc3c [ 229.427076][ T6359] kobject_init_and_add+0x124/0x190 [ 229.427935][ T6359] gfs2_sys_fs_add+0x200/0x41c [ 229.428753][ T6359] gfs2_fill_super+0xddc/0x1a18 [ 229.429572][ T6359] get_tree_bdev+0x358/0x544 [ 229.430300][ T6359] gfs2_get_tree+0x54/0x1b4 [ 229.431041][ T6359] vfs_get_tree+0x90/0x274 [ 229.431754][ T6359] do_new_mount+0x228/0x810 [ 229.432455][ T6359] path_mount+0x5bc/0x1008 [ 229.433165][ T6359] __arm64_sys_mount+0x514/0x5f0 [ 229.433995][ T6359] invoke_syscall+0x98/0x2b0 [ 229.434725][ T6359] el0_svc_common+0x138/0x258 [ 229.435444][ T6359] do_el0_svc+0x58/0x13c [ 229.436118][ T6359] el0_svc+0x78/0x1d0 [ 229.436717][ T6359] el0t_64_sync_handler+0xcc/0xe4 [ 229.437578][ T6359] el0t_64_sync+0x1a0/0x1a4 [ 229.440018][ T6359] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.442299][ T6359] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.619774][ T6361] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.621329][ T6361] CPU: 0 PID: 6361 Comm: syz.1.690 Not tainted syzkaller #0 [ 229.622622][ T6361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.624150][ T6361] Call trace: [ 229.624689][ T6361] dump_backtrace+0x0/0x458 [ 229.625390][ T6361] show_stack+0x2c/0x3c [ 229.626059][ T6361] __dump_stack+0x30/0x40 [ 229.626752][ T6361] dump_stack_lvl+0xf4/0x15c [ 229.627449][ T6361] dump_stack+0x1c/0x5c [ 229.628131][ T6361] sysfs_create_dir_ns+0x244/0x264 [ 229.629016][ T6361] kobject_add_internal+0x5ac/0xc3c [ 229.629974][ T6361] kobject_init_and_add+0x124/0x190 [ 229.630883][ T6361] gfs2_sys_fs_add+0x200/0x41c [ 229.631689][ T6361] gfs2_fill_super+0xddc/0x1a18 [ 229.632529][ T6361] get_tree_bdev+0x358/0x544 [ 229.633326][ T6361] gfs2_get_tree+0x54/0x1b4 [ 229.634125][ T6361] vfs_get_tree+0x90/0x274 [ 229.634890][ T6361] do_new_mount+0x228/0x810 [ 229.635635][ T6361] path_mount+0x5bc/0x1008 [ 229.636439][ T6361] __arm64_sys_mount+0x514/0x5f0 [ 229.637279][ T6361] invoke_syscall+0x98/0x2b0 [ 229.638065][ T6361] el0_svc_common+0x138/0x258 [ 229.638847][ T6361] do_el0_svc+0x58/0x13c [ 229.639582][ T6361] el0_svc+0x78/0x1d0 [ 229.640240][ T6361] el0t_64_sync_handler+0xcc/0xe4 [ 229.641078][ T6361] el0t_64_sync+0x1a0/0x1a4 [ 229.643221][ T6361] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.645526][ T6361] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:49 executed programs: 677 [ 229.777850][ T6363] set_capacity_and_notify: 14 callbacks suppressed [ 229.777860][ T6363] loop1: detected capacity change from 0 to 32768 [ 229.786078][ T6363] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 229.787435][ T6363] CPU: 1 PID: 6363 Comm: syz.1.691 Not tainted syzkaller #0 [ 229.788609][ T6363] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 229.790302][ T6363] Call trace: [ 229.790870][ T6363] dump_backtrace+0x0/0x458 [ 229.791700][ T6363] show_stack+0x2c/0x3c [ 229.792432][ T6363] __dump_stack+0x30/0x40 [ 229.793206][ T6363] dump_stack_lvl+0xf4/0x15c [ 229.793971][ T6363] dump_stack+0x1c/0x5c [ 229.794630][ T6363] sysfs_create_dir_ns+0x244/0x264 [ 229.795451][ T6363] kobject_add_internal+0x5ac/0xc3c [ 229.796336][ T6363] kobject_init_and_add+0x124/0x190 [ 229.797236][ T6363] gfs2_sys_fs_add+0x200/0x41c [ 229.798031][ T6363] gfs2_fill_super+0xddc/0x1a18 [ 229.798823][ T6363] get_tree_bdev+0x358/0x544 [ 229.799590][ T6363] gfs2_get_tree+0x54/0x1b4 [ 229.800362][ T6363] vfs_get_tree+0x90/0x274 [ 229.801075][ T6363] do_new_mount+0x228/0x810 [ 229.801860][ T6363] path_mount+0x5bc/0x1008 [ 229.802557][ T6363] __arm64_sys_mount+0x514/0x5f0 [ 229.803364][ T6363] invoke_syscall+0x98/0x2b0 [ 229.804132][ T6363] el0_svc_common+0x138/0x258 [ 229.804988][ T6363] do_el0_svc+0x58/0x13c [ 229.805714][ T6363] el0_svc+0x78/0x1d0 [ 229.806365][ T6363] el0t_64_sync_handler+0xcc/0xe4 [ 229.807201][ T6363] el0t_64_sync+0x1a0/0x1a4 [ 229.808400][ T6363] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 229.810559][ T6363] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 229.939540][ T6365] loop1: detected capacity change from 0 to 32768 [ 230.033070][ T6365] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.034342][ T6365] CPU: 1 PID: 6365 Comm: syz.1.692 Not tainted syzkaller #0 [ 230.035442][ T6365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.037004][ T6365] Call trace: [ 230.037564][ T6365] dump_backtrace+0x0/0x458 [ 230.038316][ T6365] show_stack+0x2c/0x3c [ 230.039053][ T6365] __dump_stack+0x30/0x40 [ 230.039760][ T6365] dump_stack_lvl+0xf4/0x15c [ 230.040484][ T6365] dump_stack+0x1c/0x5c [ 230.041189][ T6365] sysfs_create_dir_ns+0x244/0x264 [ 230.041982][ T6365] kobject_add_internal+0x5ac/0xc3c [ 230.042830][ T6365] kobject_init_and_add+0x124/0x190 [ 230.043709][ T6365] gfs2_sys_fs_add+0x200/0x41c [ 230.044561][ T6365] gfs2_fill_super+0xddc/0x1a18 [ 230.045374][ T6365] get_tree_bdev+0x358/0x544 [ 230.046148][ T6365] gfs2_get_tree+0x54/0x1b4 [ 230.046910][ T6365] vfs_get_tree+0x90/0x274 [ 230.047620][ T6365] do_new_mount+0x228/0x810 [ 230.048380][ T6365] path_mount+0x5bc/0x1008 [ 230.049133][ T6365] __arm64_sys_mount+0x514/0x5f0 [ 230.049981][ T6365] invoke_syscall+0x98/0x2b0 [ 230.050748][ T6365] el0_svc_common+0x138/0x258 [ 230.051498][ T6365] do_el0_svc+0x58/0x13c [ 230.052213][ T6365] el0_svc+0x78/0x1d0 [ 230.052870][ T6365] el0t_64_sync_handler+0xcc/0xe4 [ 230.053729][ T6365] el0t_64_sync+0x1a0/0x1a4 [ 230.055974][ T6365] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.058099][ T6365] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.186941][ T6367] loop1: detected capacity change from 0 to 32768 [ 230.194362][ T6367] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.195582][ T6367] CPU: 1 PID: 6367 Comm: syz.1.693 Not tainted syzkaller #0 [ 230.196774][ T6367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.198491][ T6367] Call trace: [ 230.199089][ T6367] dump_backtrace+0x0/0x458 [ 230.199790][ T6367] show_stack+0x2c/0x3c [ 230.200533][ T6367] __dump_stack+0x30/0x40 [ 230.201279][ T6367] dump_stack_lvl+0xf4/0x15c [ 230.202145][ T6367] dump_stack+0x1c/0x5c [ 230.202937][ T6367] sysfs_create_dir_ns+0x244/0x264 [ 230.203820][ T6367] kobject_add_internal+0x5ac/0xc3c [ 230.204717][ T6367] kobject_init_and_add+0x124/0x190 [ 230.205562][ T6367] gfs2_sys_fs_add+0x200/0x41c [ 230.206369][ T6367] gfs2_fill_super+0xddc/0x1a18 [ 230.207189][ T6367] get_tree_bdev+0x358/0x544 [ 230.207973][ T6367] gfs2_get_tree+0x54/0x1b4 [ 230.208748][ T6367] vfs_get_tree+0x90/0x274 [ 230.209513][ T6367] do_new_mount+0x228/0x810 [ 230.210333][ T6367] path_mount+0x5bc/0x1008 [ 230.211090][ T6367] __arm64_sys_mount+0x514/0x5f0 [ 230.211989][ T6367] invoke_syscall+0x98/0x2b0 [ 230.212732][ T6367] el0_svc_common+0x138/0x258 [ 230.213521][ T6367] do_el0_svc+0x58/0x13c [ 230.214261][ T6367] el0_svc+0x78/0x1d0 [ 230.214949][ T6367] el0t_64_sync_handler+0xcc/0xe4 [ 230.215802][ T6367] el0t_64_sync+0x1a0/0x1a4 [ 230.218581][ T6367] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.220526][ T6367] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.357186][ T6369] loop1: detected capacity change from 0 to 32768 [ 230.364040][ T6369] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.365331][ T6369] CPU: 1 PID: 6369 Comm: syz.1.694 Not tainted syzkaller #0 [ 230.366528][ T6369] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.368176][ T6369] Call trace: [ 230.368703][ T6369] dump_backtrace+0x0/0x458 [ 230.369427][ T6369] show_stack+0x2c/0x3c [ 230.370145][ T6369] __dump_stack+0x30/0x40 [ 230.370865][ T6369] dump_stack_lvl+0xf4/0x15c [ 230.371639][ T6369] dump_stack+0x1c/0x5c [ 230.372352][ T6369] sysfs_create_dir_ns+0x244/0x264 [ 230.373228][ T6369] kobject_add_internal+0x5ac/0xc3c [ 230.373972][ T6369] kobject_init_and_add+0x124/0x190 [ 230.374780][ T6369] gfs2_sys_fs_add+0x200/0x41c [ 230.375525][ T6369] gfs2_fill_super+0xddc/0x1a18 [ 230.376245][ T6369] get_tree_bdev+0x358/0x544 [ 230.376884][ T6369] gfs2_get_tree+0x54/0x1b4 [ 230.377577][ T6369] vfs_get_tree+0x90/0x274 [ 230.378216][ T6369] do_new_mount+0x228/0x810 [ 230.378922][ T6369] path_mount+0x5bc/0x1008 [ 230.379564][ T6369] __arm64_sys_mount+0x514/0x5f0 [ 230.380427][ T6369] invoke_syscall+0x98/0x2b0 [ 230.381175][ T6369] el0_svc_common+0x138/0x258 [ 230.381937][ T6369] do_el0_svc+0x58/0x13c [ 230.382702][ T6369] el0_svc+0x78/0x1d0 [ 230.383374][ T6369] el0t_64_sync_handler+0xcc/0xe4 [ 230.384243][ T6369] el0t_64_sync+0x1a0/0x1a4 [ 230.385206][ T6369] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.387376][ T6369] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.522836][ T6371] loop1: detected capacity change from 0 to 32768 [ 230.530644][ T6371] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.531843][ T6371] CPU: 0 PID: 6371 Comm: syz.1.695 Not tainted syzkaller #0 [ 230.533086][ T6371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.534709][ T6371] Call trace: [ 230.535226][ T6371] dump_backtrace+0x0/0x458 [ 230.535963][ T6371] show_stack+0x2c/0x3c [ 230.536653][ T6371] __dump_stack+0x30/0x40 [ 230.537347][ T6371] dump_stack_lvl+0xf4/0x15c [ 230.538126][ T6371] dump_stack+0x1c/0x5c [ 230.538810][ T6371] sysfs_create_dir_ns+0x244/0x264 [ 230.539620][ T6371] kobject_add_internal+0x5ac/0xc3c [ 230.540509][ T6371] kobject_init_and_add+0x124/0x190 [ 230.541391][ T6371] gfs2_sys_fs_add+0x200/0x41c [ 230.542149][ T6371] gfs2_fill_super+0xddc/0x1a18 [ 230.542976][ T6371] get_tree_bdev+0x358/0x544 [ 230.543783][ T6371] gfs2_get_tree+0x54/0x1b4 [ 230.544496][ T6371] vfs_get_tree+0x90/0x274 [ 230.545306][ T6371] do_new_mount+0x228/0x810 [ 230.546112][ T6371] path_mount+0x5bc/0x1008 [ 230.546853][ T6371] __arm64_sys_mount+0x514/0x5f0 [ 230.547716][ T6371] invoke_syscall+0x98/0x2b0 [ 230.548419][ T6371] el0_svc_common+0x138/0x258 [ 230.549156][ T6371] do_el0_svc+0x58/0x13c [ 230.549836][ T6371] el0_svc+0x78/0x1d0 [ 230.550533][ T6371] el0t_64_sync_handler+0xcc/0xe4 [ 230.551346][ T6371] el0t_64_sync+0x1a0/0x1a4 [ 230.553850][ T6371] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.556134][ T6371] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.686607][ T6373] loop1: detected capacity change from 0 to 32768 [ 230.728572][ T6373] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.729806][ T6373] CPU: 0 PID: 6373 Comm: syz.1.696 Not tainted syzkaller #0 [ 230.731035][ T6373] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.732776][ T6373] Call trace: [ 230.733372][ T6373] dump_backtrace+0x0/0x458 [ 230.734096][ T6373] show_stack+0x2c/0x3c [ 230.734800][ T6373] __dump_stack+0x30/0x40 [ 230.735504][ T6373] dump_stack_lvl+0xf4/0x15c [ 230.736224][ T6373] dump_stack+0x1c/0x5c [ 230.736971][ T6373] sysfs_create_dir_ns+0x244/0x264 [ 230.737831][ T6373] kobject_add_internal+0x5ac/0xc3c [ 230.738775][ T6373] kobject_init_and_add+0x124/0x190 [ 230.739747][ T6373] gfs2_sys_fs_add+0x200/0x41c [ 230.740572][ T6373] gfs2_fill_super+0xddc/0x1a18 [ 230.741316][ T6373] get_tree_bdev+0x358/0x544 [ 230.742058][ T6373] gfs2_get_tree+0x54/0x1b4 [ 230.742774][ T6373] vfs_get_tree+0x90/0x274 [ 230.743515][ T6373] do_new_mount+0x228/0x810 [ 230.744260][ T6373] path_mount+0x5bc/0x1008 [ 230.744940][ T6373] __arm64_sys_mount+0x514/0x5f0 [ 230.745748][ T6373] invoke_syscall+0x98/0x2b0 [ 230.746538][ T6373] el0_svc_common+0x138/0x258 [ 230.747266][ T6373] do_el0_svc+0x58/0x13c [ 230.748019][ T6373] el0_svc+0x78/0x1d0 [ 230.748660][ T6373] el0t_64_sync_handler+0xcc/0xe4 [ 230.749557][ T6373] el0t_64_sync+0x1a0/0x1a4 [ 230.751771][ T6373] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.753961][ T6373] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 230.883578][ T6375] loop1: detected capacity change from 0 to 32768 [ 230.919171][ T6375] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 230.920427][ T6375] CPU: 1 PID: 6375 Comm: syz.1.697 Not tainted syzkaller #0 [ 230.921550][ T6375] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 230.923246][ T6375] Call trace: [ 230.923793][ T6375] dump_backtrace+0x0/0x458 [ 230.924494][ T6375] show_stack+0x2c/0x3c [ 230.925155][ T6375] __dump_stack+0x30/0x40 [ 230.925895][ T6375] dump_stack_lvl+0xf4/0x15c [ 230.926667][ T6375] dump_stack+0x1c/0x5c [ 230.927390][ T6375] sysfs_create_dir_ns+0x244/0x264 [ 230.928226][ T6375] kobject_add_internal+0x5ac/0xc3c [ 230.929104][ T6375] kobject_init_and_add+0x124/0x190 [ 230.929962][ T6375] gfs2_sys_fs_add+0x200/0x41c [ 230.930742][ T6375] gfs2_fill_super+0xddc/0x1a18 [ 230.931532][ T6375] get_tree_bdev+0x358/0x544 [ 230.932278][ T6375] gfs2_get_tree+0x54/0x1b4 [ 230.933012][ T6375] vfs_get_tree+0x90/0x274 [ 230.933752][ T6375] do_new_mount+0x228/0x810 [ 230.934477][ T6375] path_mount+0x5bc/0x1008 [ 230.935181][ T6375] __arm64_sys_mount+0x514/0x5f0 [ 230.936027][ T6375] invoke_syscall+0x98/0x2b0 [ 230.936766][ T6375] el0_svc_common+0x138/0x258 [ 230.937554][ T6375] do_el0_svc+0x58/0x13c [ 230.938223][ T6375] el0_svc+0x78/0x1d0 [ 230.938932][ T6375] el0t_64_sync_handler+0xcc/0xe4 [ 230.939743][ T6375] el0t_64_sync+0x1a0/0x1a4 [ 230.944541][ T6375] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 230.946890][ T6375] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.079372][ T6377] loop1: detected capacity change from 0 to 32768 [ 231.128745][ T6377] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.129948][ T6377] CPU: 1 PID: 6377 Comm: syz.1.698 Not tainted syzkaller #0 [ 231.131189][ T6377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.132749][ T6377] Call trace: [ 231.133264][ T6377] dump_backtrace+0x0/0x458 [ 231.133971][ T6377] show_stack+0x2c/0x3c [ 231.134681][ T6377] __dump_stack+0x30/0x40 [ 231.135332][ T6377] dump_stack_lvl+0xf4/0x15c [ 231.136047][ T6377] dump_stack+0x1c/0x5c [ 231.136725][ T6377] sysfs_create_dir_ns+0x244/0x264 [ 231.137549][ T6377] kobject_add_internal+0x5ac/0xc3c [ 231.138355][ T6377] kobject_init_and_add+0x124/0x190 [ 231.139191][ T6377] gfs2_sys_fs_add+0x200/0x41c [ 231.139961][ T6377] gfs2_fill_super+0xddc/0x1a18 [ 231.140785][ T6377] get_tree_bdev+0x358/0x544 [ 231.141616][ T6377] gfs2_get_tree+0x54/0x1b4 [ 231.142375][ T6377] vfs_get_tree+0x90/0x274 [ 231.143137][ T6377] do_new_mount+0x228/0x810 [ 231.143908][ T6377] path_mount+0x5bc/0x1008 [ 231.144670][ T6377] __arm64_sys_mount+0x514/0x5f0 [ 231.145456][ T6377] invoke_syscall+0x98/0x2b0 [ 231.146208][ T6377] el0_svc_common+0x138/0x258 [ 231.147012][ T6377] do_el0_svc+0x58/0x13c [ 231.147752][ T6377] el0_svc+0x78/0x1d0 [ 231.148380][ T6377] el0t_64_sync_handler+0xcc/0xe4 [ 231.149191][ T6377] el0t_64_sync+0x1a0/0x1a4 [ 231.151877][ T6377] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.153830][ T6377] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.281027][ T6379] loop1: detected capacity change from 0 to 32768 [ 231.332291][ T6379] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.333659][ T6379] CPU: 1 PID: 6379 Comm: syz.1.699 Not tainted syzkaller #0 [ 231.334803][ T6379] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.336395][ T6379] Call trace: [ 231.336951][ T6379] dump_backtrace+0x0/0x458 [ 231.337690][ T6379] show_stack+0x2c/0x3c [ 231.338349][ T6379] __dump_stack+0x30/0x40 [ 231.339075][ T6379] dump_stack_lvl+0xf4/0x15c [ 231.339799][ T6379] dump_stack+0x1c/0x5c [ 231.340460][ T6379] sysfs_create_dir_ns+0x244/0x264 [ 231.341253][ T6379] kobject_add_internal+0x5ac/0xc3c [ 231.342103][ T6379] kobject_init_and_add+0x124/0x190 [ 231.342915][ T6379] gfs2_sys_fs_add+0x200/0x41c [ 231.343696][ T6379] gfs2_fill_super+0xddc/0x1a18 [ 231.344456][ T6379] get_tree_bdev+0x358/0x544 [ 231.345268][ T6379] gfs2_get_tree+0x54/0x1b4 [ 231.346039][ T6379] vfs_get_tree+0x90/0x274 [ 231.346791][ T6379] do_new_mount+0x228/0x810 [ 231.347612][ T6379] path_mount+0x5bc/0x1008 [ 231.348325][ T6379] __arm64_sys_mount+0x514/0x5f0 [ 231.349184][ T6379] invoke_syscall+0x98/0x2b0 [ 231.349901][ T6379] el0_svc_common+0x138/0x258 [ 231.350635][ T6379] do_el0_svc+0x58/0x13c [ 231.351376][ T6379] el0_svc+0x78/0x1d0 [ 231.352044][ T6379] el0t_64_sync_handler+0xcc/0xe4 [ 231.352917][ T6379] el0t_64_sync+0x1a0/0x1a4 [ 231.355482][ T6379] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.358278][ T6379] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.488034][ T6381] loop1: detected capacity change from 0 to 32768 [ 231.494727][ T6381] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.495944][ T6381] CPU: 0 PID: 6381 Comm: syz.1.700 Not tainted syzkaller #0 [ 231.497052][ T6381] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.498662][ T6381] Call trace: [ 231.499195][ T6381] dump_backtrace+0x0/0x458 [ 231.499900][ T6381] show_stack+0x2c/0x3c [ 231.500586][ T6381] __dump_stack+0x30/0x40 [ 231.501257][ T6381] dump_stack_lvl+0xf4/0x15c [ 231.502019][ T6381] dump_stack+0x1c/0x5c [ 231.502655][ T6381] sysfs_create_dir_ns+0x244/0x264 [ 231.503539][ T6381] kobject_add_internal+0x5ac/0xc3c [ 231.504433][ T6381] kobject_init_and_add+0x124/0x190 [ 231.505331][ T6381] gfs2_sys_fs_add+0x200/0x41c [ 231.506148][ T6381] gfs2_fill_super+0xddc/0x1a18 [ 231.507025][ T6381] get_tree_bdev+0x358/0x544 [ 231.507773][ T6381] gfs2_get_tree+0x54/0x1b4 [ 231.508530][ T6381] vfs_get_tree+0x90/0x274 [ 231.509238][ T6381] do_new_mount+0x228/0x810 [ 231.509964][ T6381] path_mount+0x5bc/0x1008 [ 231.510655][ T6381] __arm64_sys_mount+0x514/0x5f0 [ 231.511448][ T6381] invoke_syscall+0x98/0x2b0 [ 231.512251][ T6381] el0_svc_common+0x138/0x258 [ 231.513066][ T6381] do_el0_svc+0x58/0x13c [ 231.513794][ T6381] el0_svc+0x78/0x1d0 [ 231.514454][ T6381] el0t_64_sync_handler+0xcc/0xe4 [ 231.515209][ T6381] el0t_64_sync+0x1a0/0x1a4 [ 231.516008][ T6381] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.518096][ T6381] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.722938][ T6383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.724341][ T6383] CPU: 1 PID: 6383 Comm: syz.1.701 Not tainted syzkaller #0 [ 231.725486][ T6383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.727056][ T6383] Call trace: [ 231.727627][ T6383] dump_backtrace+0x0/0x458 [ 231.728379][ T6383] show_stack+0x2c/0x3c [ 231.729071][ T6383] __dump_stack+0x30/0x40 [ 231.729796][ T6383] dump_stack_lvl+0xf4/0x15c [ 231.730528][ T6383] dump_stack+0x1c/0x5c [ 231.731210][ T6383] sysfs_create_dir_ns+0x244/0x264 [ 231.731961][ T6383] kobject_add_internal+0x5ac/0xc3c [ 231.732762][ T6383] kobject_init_and_add+0x124/0x190 [ 231.733623][ T6383] gfs2_sys_fs_add+0x200/0x41c [ 231.734517][ T6383] gfs2_fill_super+0xddc/0x1a18 [ 231.735345][ T6383] get_tree_bdev+0x358/0x544 [ 231.736144][ T6383] gfs2_get_tree+0x54/0x1b4 [ 231.736960][ T6383] vfs_get_tree+0x90/0x274 [ 231.737709][ T6383] do_new_mount+0x228/0x810 [ 231.738458][ T6383] path_mount+0x5bc/0x1008 [ 231.739177][ T6383] __arm64_sys_mount+0x514/0x5f0 [ 231.740045][ T6383] invoke_syscall+0x98/0x2b0 [ 231.740825][ T6383] el0_svc_common+0x138/0x258 [ 231.741603][ T6383] do_el0_svc+0x58/0x13c [ 231.742296][ T6383] el0_svc+0x78/0x1d0 [ 231.742971][ T6383] el0t_64_sync_handler+0xcc/0xe4 [ 231.743812][ T6383] el0t_64_sync+0x1a0/0x1a4 [ 231.746320][ T6383] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.748738][ T6383] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 231.886192][ T6385] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 231.887577][ T6385] CPU: 0 PID: 6385 Comm: syz.1.702 Not tainted syzkaller #0 [ 231.888711][ T6385] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 231.890273][ T6385] Call trace: [ 231.890826][ T6385] dump_backtrace+0x0/0x458 [ 231.891544][ T6385] show_stack+0x2c/0x3c [ 231.892196][ T6385] __dump_stack+0x30/0x40 [ 231.892835][ T6385] dump_stack_lvl+0xf4/0x15c [ 231.893546][ T6385] dump_stack+0x1c/0x5c [ 231.894193][ T6385] sysfs_create_dir_ns+0x244/0x264 [ 231.894950][ T6385] kobject_add_internal+0x5ac/0xc3c [ 231.895703][ T6385] kobject_init_and_add+0x124/0x190 [ 231.896483][ T6385] gfs2_sys_fs_add+0x200/0x41c [ 231.897176][ T6385] gfs2_fill_super+0xddc/0x1a18 [ 231.897999][ T6385] get_tree_bdev+0x358/0x544 [ 231.898730][ T6385] gfs2_get_tree+0x54/0x1b4 [ 231.899463][ T6385] vfs_get_tree+0x90/0x274 [ 231.900193][ T6385] do_new_mount+0x228/0x810 [ 231.900983][ T6385] path_mount+0x5bc/0x1008 [ 231.901667][ T6385] __arm64_sys_mount+0x514/0x5f0 [ 231.902478][ T6385] invoke_syscall+0x98/0x2b0 [ 231.903210][ T6385] el0_svc_common+0x138/0x258 [ 231.904021][ T6385] do_el0_svc+0x58/0x13c [ 231.904760][ T6385] el0_svc+0x78/0x1d0 [ 231.905413][ T6385] el0t_64_sync_handler+0xcc/0xe4 [ 231.906233][ T6385] el0t_64_sync+0x1a0/0x1a4 [ 231.907706][ T6385] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 231.909712][ T6385] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.099624][ T6387] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.100851][ T6387] CPU: 0 PID: 6387 Comm: syz.1.703 Not tainted syzkaller #0 [ 232.102053][ T6387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.103946][ T6387] Call trace: [ 232.104512][ T6387] dump_backtrace+0x0/0x458 [ 232.105218][ T6387] show_stack+0x2c/0x3c [ 232.105840][ T6387] __dump_stack+0x30/0x40 [ 232.106517][ T6387] dump_stack_lvl+0xf4/0x15c [ 232.107254][ T6387] dump_stack+0x1c/0x5c [ 232.107905][ T6387] sysfs_create_dir_ns+0x244/0x264 [ 232.108703][ T6387] kobject_add_internal+0x5ac/0xc3c [ 232.109546][ T6387] kobject_init_and_add+0x124/0x190 [ 232.110463][ T6387] gfs2_sys_fs_add+0x200/0x41c [ 232.111320][ T6387] gfs2_fill_super+0xddc/0x1a18 [ 232.112098][ T6387] get_tree_bdev+0x358/0x544 [ 232.112823][ T6387] gfs2_get_tree+0x54/0x1b4 [ 232.113549][ T6387] vfs_get_tree+0x90/0x274 [ 232.114200][ T6387] do_new_mount+0x228/0x810 [ 232.114957][ T6387] path_mount+0x5bc/0x1008 [ 232.115736][ T6387] __arm64_sys_mount+0x514/0x5f0 [ 232.116536][ T6387] invoke_syscall+0x98/0x2b0 [ 232.117320][ T6387] el0_svc_common+0x138/0x258 [ 232.118150][ T6387] do_el0_svc+0x58/0x13c [ 232.118965][ T6387] el0_svc+0x78/0x1d0 [ 232.119605][ T6387] el0t_64_sync_handler+0xcc/0xe4 [ 232.120450][ T6387] el0t_64_sync+0x1a0/0x1a4 [ 232.122996][ T6387] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.125131][ T6387] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.264126][ T6389] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.265372][ T6389] CPU: 1 PID: 6389 Comm: syz.1.704 Not tainted syzkaller #0 [ 232.266529][ T6389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.268320][ T6389] Call trace: [ 232.268830][ T6389] dump_backtrace+0x0/0x458 [ 232.269577][ T6389] show_stack+0x2c/0x3c [ 232.270262][ T6389] __dump_stack+0x30/0x40 [ 232.270990][ T6389] dump_stack_lvl+0xf4/0x15c [ 232.271733][ T6389] dump_stack+0x1c/0x5c [ 232.272486][ T6389] sysfs_create_dir_ns+0x244/0x264 [ 232.273279][ T6389] kobject_add_internal+0x5ac/0xc3c [ 232.274140][ T6389] kobject_init_and_add+0x124/0x190 [ 232.274962][ T6389] gfs2_sys_fs_add+0x200/0x41c [ 232.275761][ T6389] gfs2_fill_super+0xddc/0x1a18 [ 232.276512][ T6389] get_tree_bdev+0x358/0x544 [ 232.277277][ T6389] gfs2_get_tree+0x54/0x1b4 [ 232.277971][ T6389] vfs_get_tree+0x90/0x274 [ 232.278611][ T6389] do_new_mount+0x228/0x810 [ 232.279325][ T6389] path_mount+0x5bc/0x1008 [ 232.280063][ T6389] __arm64_sys_mount+0x514/0x5f0 [ 232.280856][ T6389] invoke_syscall+0x98/0x2b0 [ 232.281629][ T6389] el0_svc_common+0x138/0x258 [ 232.282358][ T6389] do_el0_svc+0x58/0x13c [ 232.283029][ T6389] el0_svc+0x78/0x1d0 [ 232.283718][ T6389] el0t_64_sync_handler+0xcc/0xe4 [ 232.284699][ T6389] el0t_64_sync+0x1a0/0x1a4 [ 232.285940][ T6389] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.288203][ T6389] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.488824][ T6391] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.490552][ T6391] CPU: 0 PID: 6391 Comm: syz.1.705 Not tainted syzkaller #0 [ 232.491623][ T6391] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.493204][ T6391] Call trace: [ 232.493772][ T6391] dump_backtrace+0x0/0x458 [ 232.494438][ T6391] show_stack+0x2c/0x3c [ 232.495097][ T6391] __dump_stack+0x30/0x40 [ 232.495811][ T6391] dump_stack_lvl+0xf4/0x15c [ 232.496559][ T6391] dump_stack+0x1c/0x5c [ 232.497246][ T6391] sysfs_create_dir_ns+0x244/0x264 [ 232.498127][ T6391] kobject_add_internal+0x5ac/0xc3c [ 232.499055][ T6391] kobject_init_and_add+0x124/0x190 [ 232.499947][ T6391] gfs2_sys_fs_add+0x200/0x41c [ 232.500732][ T6391] gfs2_fill_super+0xddc/0x1a18 [ 232.501550][ T6391] get_tree_bdev+0x358/0x544 [ 232.502338][ T6391] gfs2_get_tree+0x54/0x1b4 [ 232.503089][ T6391] vfs_get_tree+0x90/0x274 [ 232.503812][ T6391] do_new_mount+0x228/0x810 [ 232.504626][ T6391] path_mount+0x5bc/0x1008 [ 232.505329][ T6391] __arm64_sys_mount+0x514/0x5f0 [ 232.506131][ T6391] invoke_syscall+0x98/0x2b0 [ 232.506905][ T6391] el0_svc_common+0x138/0x258 [ 232.507606][ T6391] do_el0_svc+0x58/0x13c [ 232.508271][ T6391] el0_svc+0x78/0x1d0 [ 232.508924][ T6391] el0t_64_sync_handler+0xcc/0xe4 [ 232.509831][ T6391] el0t_64_sync+0x1a0/0x1a4 [ 232.512321][ T6391] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.514504][ T6391] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.678632][ T6393] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.680028][ T6393] CPU: 1 PID: 6393 Comm: syz.1.706 Not tainted syzkaller #0 [ 232.681223][ T6393] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.682848][ T6393] Call trace: [ 232.683363][ T6393] dump_backtrace+0x0/0x458 [ 232.684100][ T6393] show_stack+0x2c/0x3c [ 232.684712][ T6393] __dump_stack+0x30/0x40 [ 232.685372][ T6393] dump_stack_lvl+0xf4/0x15c [ 232.686043][ T6393] dump_stack+0x1c/0x5c [ 232.686675][ T6393] sysfs_create_dir_ns+0x244/0x264 [ 232.687492][ T6393] kobject_add_internal+0x5ac/0xc3c [ 232.688389][ T6393] kobject_init_and_add+0x124/0x190 [ 232.689292][ T6393] gfs2_sys_fs_add+0x200/0x41c [ 232.690015][ T6393] gfs2_fill_super+0xddc/0x1a18 [ 232.690804][ T6393] get_tree_bdev+0x358/0x544 [ 232.691504][ T6393] gfs2_get_tree+0x54/0x1b4 [ 232.692302][ T6393] vfs_get_tree+0x90/0x274 [ 232.693100][ T6393] do_new_mount+0x228/0x810 [ 232.693807][ T6393] path_mount+0x5bc/0x1008 [ 232.694566][ T6393] __arm64_sys_mount+0x514/0x5f0 [ 232.695363][ T6393] invoke_syscall+0x98/0x2b0 [ 232.696135][ T6393] el0_svc_common+0x138/0x258 [ 232.696933][ T6393] do_el0_svc+0x58/0x13c [ 232.697647][ T6393] el0_svc+0x78/0x1d0 [ 232.698284][ T6393] el0t_64_sync_handler+0xcc/0xe4 [ 232.699115][ T6393] el0t_64_sync+0x1a0/0x1a4 [ 232.700070][ T6393] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.702199][ T6393] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 232.847252][ T6395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 232.848600][ T6395] CPU: 0 PID: 6395 Comm: syz.1.707 Not tainted syzkaller #0 [ 232.849727][ T6395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 232.851430][ T6395] Call trace: [ 232.851961][ T6395] dump_backtrace+0x0/0x458 [ 232.852783][ T6395] show_stack+0x2c/0x3c [ 232.853455][ T6395] __dump_stack+0x30/0x40 [ 232.854171][ T6395] dump_stack_lvl+0xf4/0x15c [ 232.854974][ T6395] dump_stack+0x1c/0x5c [ 232.855681][ T6395] sysfs_create_dir_ns+0x244/0x264 [ 232.856477][ T6395] kobject_add_internal+0x5ac/0xc3c [ 232.857392][ T6395] kobject_init_and_add+0x124/0x190 [ 232.858221][ T6395] gfs2_sys_fs_add+0x200/0x41c [ 232.858996][ T6395] gfs2_fill_super+0xddc/0x1a18 [ 232.859823][ T6395] get_tree_bdev+0x358/0x544 [ 232.860614][ T6395] gfs2_get_tree+0x54/0x1b4 [ 232.861319][ T6395] vfs_get_tree+0x90/0x274 [ 232.862040][ T6395] do_new_mount+0x228/0x810 [ 232.862742][ T6395] path_mount+0x5bc/0x1008 [ 232.863469][ T6395] __arm64_sys_mount+0x514/0x5f0 [ 232.864271][ T6395] invoke_syscall+0x98/0x2b0 [ 232.865033][ T6395] el0_svc_common+0x138/0x258 [ 232.865795][ T6395] do_el0_svc+0x58/0x13c [ 232.866484][ T6395] el0_svc+0x78/0x1d0 [ 232.867138][ T6395] el0t_64_sync_handler+0xcc/0xe4 [ 232.867996][ T6395] el0t_64_sync+0x1a0/0x1a4 [ 232.870124][ T6395] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 232.872200][ T6395] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.138870][ T6397] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.140189][ T6397] CPU: 1 PID: 6397 Comm: syz.1.708 Not tainted syzkaller #0 [ 233.141330][ T6397] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.142985][ T6397] Call trace: [ 233.143470][ T6397] dump_backtrace+0x0/0x458 [ 233.144156][ T6397] show_stack+0x2c/0x3c [ 233.144864][ T6397] __dump_stack+0x30/0x40 [ 233.145624][ T6397] dump_stack_lvl+0xf4/0x15c [ 233.146374][ T6397] dump_stack+0x1c/0x5c [ 233.147110][ T6397] sysfs_create_dir_ns+0x244/0x264 [ 233.147917][ T6397] kobject_add_internal+0x5ac/0xc3c [ 233.148816][ T6397] kobject_init_and_add+0x124/0x190 [ 233.149640][ T6397] gfs2_sys_fs_add+0x200/0x41c [ 233.150447][ T6397] gfs2_fill_super+0xddc/0x1a18 [ 233.151341][ T6397] get_tree_bdev+0x358/0x544 [ 233.152081][ T6397] gfs2_get_tree+0x54/0x1b4 [ 233.152898][ T6397] vfs_get_tree+0x90/0x274 [ 233.153637][ T6397] do_new_mount+0x228/0x810 [ 233.154380][ T6397] path_mount+0x5bc/0x1008 [ 233.155108][ T6397] __arm64_sys_mount+0x514/0x5f0 [ 233.155979][ T6397] invoke_syscall+0x98/0x2b0 [ 233.156785][ T6397] el0_svc_common+0x138/0x258 [ 233.157549][ T6397] do_el0_svc+0x58/0x13c [ 233.158291][ T6397] el0_svc+0x78/0x1d0 [ 233.158961][ T6397] el0t_64_sync_handler+0xcc/0xe4 [ 233.159850][ T6397] el0t_64_sync+0x1a0/0x1a4 [ 233.160833][ T6397] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.162996][ T6397] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.372088][ T6399] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.373406][ T6399] CPU: 0 PID: 6399 Comm: syz.1.709 Not tainted syzkaller #0 [ 233.374666][ T6399] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.376321][ T6399] Call trace: [ 233.376829][ T6399] dump_backtrace+0x0/0x458 [ 233.377586][ T6399] show_stack+0x2c/0x3c [ 233.378286][ T6399] __dump_stack+0x30/0x40 [ 233.378957][ T6399] dump_stack_lvl+0xf4/0x15c [ 233.379691][ T6399] dump_stack+0x1c/0x5c [ 233.380376][ T6399] sysfs_create_dir_ns+0x244/0x264 [ 233.381225][ T6399] kobject_add_internal+0x5ac/0xc3c [ 233.382093][ T6399] kobject_init_and_add+0x124/0x190 [ 233.382946][ T6399] gfs2_sys_fs_add+0x200/0x41c [ 233.383727][ T6399] gfs2_fill_super+0xddc/0x1a18 [ 233.384515][ T6399] get_tree_bdev+0x358/0x544 [ 233.385238][ T6399] gfs2_get_tree+0x54/0x1b4 [ 233.385915][ T6399] vfs_get_tree+0x90/0x274 [ 233.386587][ T6399] do_new_mount+0x228/0x810 [ 233.387327][ T6399] path_mount+0x5bc/0x1008 [ 233.388058][ T6399] __arm64_sys_mount+0x514/0x5f0 [ 233.388850][ T6399] invoke_syscall+0x98/0x2b0 [ 233.389581][ T6399] el0_svc_common+0x138/0x258 [ 233.390341][ T6399] do_el0_svc+0x58/0x13c [ 233.391013][ T6399] el0_svc+0x78/0x1d0 [ 233.391649][ T6399] el0t_64_sync_handler+0xcc/0xe4 [ 233.392412][ T6399] el0t_64_sync+0x1a0/0x1a4 [ 233.394432][ T6399] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.396340][ T6399] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.533249][ T6401] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.534631][ T6401] CPU: 0 PID: 6401 Comm: syz.1.710 Not tainted syzkaller #0 [ 233.535883][ T6401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.537529][ T6401] Call trace: [ 233.538068][ T6401] dump_backtrace+0x0/0x458 [ 233.538821][ T6401] show_stack+0x2c/0x3c [ 233.539517][ T6401] __dump_stack+0x30/0x40 [ 233.540197][ T6401] dump_stack_lvl+0xf4/0x15c [ 233.540977][ T6401] dump_stack+0x1c/0x5c [ 233.541668][ T6401] sysfs_create_dir_ns+0x244/0x264 [ 233.542561][ T6401] kobject_add_internal+0x5ac/0xc3c [ 233.543427][ T6401] kobject_init_and_add+0x124/0x190 [ 233.544321][ T6401] gfs2_sys_fs_add+0x200/0x41c [ 233.545096][ T6401] gfs2_fill_super+0xddc/0x1a18 [ 233.545890][ T6401] get_tree_bdev+0x358/0x544 [ 233.546584][ T6401] gfs2_get_tree+0x54/0x1b4 [ 233.547291][ T6401] vfs_get_tree+0x90/0x274 [ 233.548071][ T6401] do_new_mount+0x228/0x810 [ 233.548917][ T6401] path_mount+0x5bc/0x1008 [ 233.549669][ T6401] __arm64_sys_mount+0x514/0x5f0 [ 233.550539][ T6401] invoke_syscall+0x98/0x2b0 [ 233.551345][ T6401] el0_svc_common+0x138/0x258 [ 233.552142][ T6401] do_el0_svc+0x58/0x13c [ 233.552875][ T6401] el0_svc+0x78/0x1d0 [ 233.553561][ T6401] el0t_64_sync_handler+0xcc/0xe4 [ 233.554396][ T6401] el0t_64_sync+0x1a0/0x1a4 [ 233.556580][ T6401] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.558765][ T6401] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.699496][ T6403] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.700712][ T6403] CPU: 1 PID: 6403 Comm: syz.1.711 Not tainted syzkaller #0 [ 233.701883][ T6403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.703602][ T6403] Call trace: [ 233.704118][ T6403] dump_backtrace+0x0/0x458 [ 233.704891][ T6403] show_stack+0x2c/0x3c [ 233.705518][ T6403] __dump_stack+0x30/0x40 [ 233.706197][ T6403] dump_stack_lvl+0xf4/0x15c [ 233.706914][ T6403] dump_stack+0x1c/0x5c [ 233.707616][ T6403] sysfs_create_dir_ns+0x244/0x264 [ 233.708533][ T6403] kobject_add_internal+0x5ac/0xc3c [ 233.709427][ T6403] kobject_init_and_add+0x124/0x190 [ 233.710339][ T6403] gfs2_sys_fs_add+0x200/0x41c [ 233.711146][ T6403] gfs2_fill_super+0xddc/0x1a18 [ 233.712010][ T6403] get_tree_bdev+0x358/0x544 [ 233.712776][ T6403] gfs2_get_tree+0x54/0x1b4 [ 233.713525][ T6403] vfs_get_tree+0x90/0x274 [ 233.714296][ T6403] do_new_mount+0x228/0x810 [ 233.715076][ T6403] path_mount+0x5bc/0x1008 [ 233.715828][ T6403] __arm64_sys_mount+0x514/0x5f0 [ 233.716682][ T6403] invoke_syscall+0x98/0x2b0 [ 233.717464][ T6403] el0_svc_common+0x138/0x258 [ 233.718256][ T6403] do_el0_svc+0x58/0x13c [ 233.718942][ T6403] el0_svc+0x78/0x1d0 [ 233.719600][ T6403] el0t_64_sync_handler+0xcc/0xe4 [ 233.720401][ T6403] el0t_64_sync+0x1a0/0x1a4 [ 233.721289][ T6403] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.723408][ T6403] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 233.891960][ T6405] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 233.893363][ T6405] CPU: 1 PID: 6405 Comm: syz.1.712 Not tainted syzkaller #0 [ 233.894540][ T6405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 233.896259][ T6405] Call trace: [ 233.896766][ T6405] dump_backtrace+0x0/0x458 [ 233.897496][ T6405] show_stack+0x2c/0x3c [ 233.898186][ T6405] __dump_stack+0x30/0x40 [ 233.898876][ T6405] dump_stack_lvl+0xf4/0x15c [ 233.899641][ T6405] dump_stack+0x1c/0x5c [ 233.900359][ T6405] sysfs_create_dir_ns+0x244/0x264 [ 233.901182][ T6405] kobject_add_internal+0x5ac/0xc3c [ 233.902015][ T6405] kobject_init_and_add+0x124/0x190 [ 233.902828][ T6405] gfs2_sys_fs_add+0x200/0x41c [ 233.903651][ T6405] gfs2_fill_super+0xddc/0x1a18 [ 233.904382][ T6405] get_tree_bdev+0x358/0x544 [ 233.905082][ T6405] gfs2_get_tree+0x54/0x1b4 [ 233.905768][ T6405] vfs_get_tree+0x90/0x274 [ 233.906538][ T6405] do_new_mount+0x228/0x810 [ 233.907318][ T6405] path_mount+0x5bc/0x1008 [ 233.907990][ T6405] __arm64_sys_mount+0x514/0x5f0 [ 233.908756][ T6405] invoke_syscall+0x98/0x2b0 [ 233.909475][ T6405] el0_svc_common+0x138/0x258 [ 233.910229][ T6405] do_el0_svc+0x58/0x13c [ 233.910906][ T6405] el0_svc+0x78/0x1d0 [ 233.911527][ T6405] el0t_64_sync_handler+0xcc/0xe4 [ 233.912293][ T6405] el0t_64_sync+0x1a0/0x1a4 [ 233.913407][ T6405] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 233.915437][ T6405] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.128963][ T6407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.130154][ T6407] CPU: 1 PID: 6407 Comm: syz.1.713 Not tainted syzkaller #0 [ 234.131332][ T6407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.132896][ T6407] Call trace: [ 234.133386][ T6407] dump_backtrace+0x0/0x458 [ 234.134126][ T6407] show_stack+0x2c/0x3c [ 234.134840][ T6407] __dump_stack+0x30/0x40 [ 234.135563][ T6407] dump_stack_lvl+0xf4/0x15c [ 234.136355][ T6407] dump_stack+0x1c/0x5c [ 234.137066][ T6407] sysfs_create_dir_ns+0x244/0x264 [ 234.137913][ T6407] kobject_add_internal+0x5ac/0xc3c [ 234.138755][ T6407] kobject_init_and_add+0x124/0x190 [ 234.139627][ T6407] gfs2_sys_fs_add+0x200/0x41c [ 234.140409][ T6407] gfs2_fill_super+0xddc/0x1a18 [ 234.141188][ T6407] get_tree_bdev+0x358/0x544 [ 234.141935][ T6407] gfs2_get_tree+0x54/0x1b4 [ 234.142657][ T6407] vfs_get_tree+0x90/0x274 [ 234.143316][ T6407] do_new_mount+0x228/0x810 [ 234.144034][ T6407] path_mount+0x5bc/0x1008 [ 234.144752][ T6407] __arm64_sys_mount+0x514/0x5f0 [ 234.145540][ T6407] invoke_syscall+0x98/0x2b0 [ 234.146321][ T6407] el0_svc_common+0x138/0x258 [ 234.147072][ T6407] do_el0_svc+0x58/0x13c [ 234.147765][ T6407] el0_svc+0x78/0x1d0 [ 234.148384][ T6407] el0t_64_sync_handler+0xcc/0xe4 [ 234.149207][ T6407] el0t_64_sync+0x1a0/0x1a4 [ 234.151429][ T6407] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.153435][ T6407] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.328535][ T6409] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.329796][ T6409] CPU: 1 PID: 6409 Comm: syz.1.714 Not tainted syzkaller #0 [ 234.331041][ T6409] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.332686][ T6409] Call trace: [ 234.333148][ T6409] dump_backtrace+0x0/0x458 [ 234.333882][ T6409] show_stack+0x2c/0x3c [ 234.334509][ T6409] __dump_stack+0x30/0x40 [ 234.335242][ T6409] dump_stack_lvl+0xf4/0x15c [ 234.335960][ T6409] dump_stack+0x1c/0x5c [ 234.336641][ T6409] sysfs_create_dir_ns+0x244/0x264 [ 234.337458][ T6409] kobject_add_internal+0x5ac/0xc3c [ 234.338338][ T6409] kobject_init_and_add+0x124/0x190 [ 234.339216][ T6409] gfs2_sys_fs_add+0x200/0x41c [ 234.339984][ T6409] gfs2_fill_super+0xddc/0x1a18 [ 234.340796][ T6409] get_tree_bdev+0x358/0x544 [ 234.341609][ T6409] gfs2_get_tree+0x54/0x1b4 [ 234.342391][ T6409] vfs_get_tree+0x90/0x274 [ 234.343154][ T6409] do_new_mount+0x228/0x810 [ 234.343905][ T6409] path_mount+0x5bc/0x1008 [ 234.344667][ T6409] __arm64_sys_mount+0x514/0x5f0 [ 234.345513][ T6409] invoke_syscall+0x98/0x2b0 [ 234.346313][ T6409] el0_svc_common+0x138/0x258 [ 234.347103][ T6409] do_el0_svc+0x58/0x13c [ 234.347784][ T6409] el0_svc+0x78/0x1d0 [ 234.348398][ T6409] el0t_64_sync_handler+0xcc/0xe4 [ 234.349201][ T6409] el0t_64_sync+0x1a0/0x1a4 [ 234.351267][ T6409] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.353360][ T6409] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.492116][ T6411] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.493376][ T6411] CPU: 0 PID: 6411 Comm: syz.1.715 Not tainted syzkaller #0 [ 234.494591][ T6411] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.496320][ T6411] Call trace: [ 234.496859][ T6411] dump_backtrace+0x0/0x458 [ 234.497626][ T6411] show_stack+0x2c/0x3c [ 234.498318][ T6411] __dump_stack+0x30/0x40 [ 234.499043][ T6411] dump_stack_lvl+0xf4/0x15c [ 234.499973][ T6411] dump_stack+0x1c/0x5c [ 234.500726][ T6411] sysfs_create_dir_ns+0x244/0x264 [ 234.501573][ T6411] kobject_add_internal+0x5ac/0xc3c [ 234.502468][ T6411] kobject_init_and_add+0x124/0x190 [ 234.503337][ T6411] gfs2_sys_fs_add+0x200/0x41c [ 234.504204][ T6411] gfs2_fill_super+0xddc/0x1a18 [ 234.505023][ T6411] get_tree_bdev+0x358/0x544 [ 234.505779][ T6411] gfs2_get_tree+0x54/0x1b4 [ 234.506550][ T6411] vfs_get_tree+0x90/0x274 [ 234.507266][ T6411] do_new_mount+0x228/0x810 [ 234.508004][ T6411] path_mount+0x5bc/0x1008 [ 234.508703][ T6411] __arm64_sys_mount+0x514/0x5f0 [ 234.509538][ T6411] invoke_syscall+0x98/0x2b0 [ 234.510303][ T6411] el0_svc_common+0x138/0x258 [ 234.511047][ T6411] do_el0_svc+0x58/0x13c [ 234.511686][ T6411] el0_svc+0x78/0x1d0 [ 234.512342][ T6411] el0t_64_sync_handler+0xcc/0xe4 [ 234.513130][ T6411] el0t_64_sync+0x1a0/0x1a4 [ 234.514118][ T6411] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.516134][ T6411] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 234.692535][ T6413] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.693783][ T6413] CPU: 1 PID: 6413 Comm: syz.1.716 Not tainted syzkaller #0 [ 234.695083][ T6413] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.696860][ T6413] Call trace: [ 234.697402][ T6413] dump_backtrace+0x0/0x458 [ 234.698197][ T6413] show_stack+0x2c/0x3c [ 234.698929][ T6413] __dump_stack+0x30/0x40 [ 234.699658][ T6413] dump_stack_lvl+0xf4/0x15c [ 234.700450][ T6413] dump_stack+0x1c/0x5c [ 234.701182][ T6413] sysfs_create_dir_ns+0x244/0x264 [ 234.702089][ T6413] kobject_add_internal+0x5ac/0xc3c [ 234.702936][ T6413] kobject_init_and_add+0x124/0x190 [ 234.703758][ T6413] gfs2_sys_fs_add+0x200/0x41c [ 234.704523][ T6413] gfs2_fill_super+0xddc/0x1a18 [ 234.705301][ T6413] get_tree_bdev+0x358/0x544 [ 234.706066][ T6413] gfs2_get_tree+0x54/0x1b4 [ 234.706775][ T6413] vfs_get_tree+0x90/0x274 [ 234.707465][ T6413] do_new_mount+0x228/0x810 [ 234.708171][ T6413] path_mount+0x5bc/0x1008 [ 234.708893][ T6413] __arm64_sys_mount+0x514/0x5f0 [ 234.709699][ T6413] invoke_syscall+0x98/0x2b0 [ 234.710435][ T6413] el0_svc_common+0x138/0x258 [ 234.711145][ T6413] do_el0_svc+0x58/0x13c [ 234.711828][ T6413] el0_svc+0x78/0x1d0 [ 234.712442][ T6413] el0t_64_sync_handler+0xcc/0xe4 [ 234.713173][ T6413] el0t_64_sync+0x1a0/0x1a4 [ 234.715285][ T6413] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.717195][ T6413] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:54 executed programs: 703 [ 234.852257][ T6415] set_capacity_and_notify: 16 callbacks suppressed [ 234.852267][ T6415] loop1: detected capacity change from 0 to 32768 [ 234.893726][ T6415] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 234.894953][ T6415] CPU: 1 PID: 6415 Comm: syz.1.717 Not tainted syzkaller #0 [ 234.896011][ T6415] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 234.897489][ T6415] Call trace: [ 234.898012][ T6415] dump_backtrace+0x0/0x458 [ 234.898759][ T6415] show_stack+0x2c/0x3c [ 234.899426][ T6415] __dump_stack+0x30/0x40 [ 234.900110][ T6415] dump_stack_lvl+0xf4/0x15c [ 234.900840][ T6415] dump_stack+0x1c/0x5c [ 234.901523][ T6415] sysfs_create_dir_ns+0x244/0x264 [ 234.902359][ T6415] kobject_add_internal+0x5ac/0xc3c [ 234.903207][ T6415] kobject_init_and_add+0x124/0x190 [ 234.904075][ T6415] gfs2_sys_fs_add+0x200/0x41c [ 234.904809][ T6415] gfs2_fill_super+0xddc/0x1a18 [ 234.905572][ T6415] get_tree_bdev+0x358/0x544 [ 234.906324][ T6415] gfs2_get_tree+0x54/0x1b4 [ 234.907033][ T6415] vfs_get_tree+0x90/0x274 [ 234.907743][ T6415] do_new_mount+0x228/0x810 [ 234.908453][ T6415] path_mount+0x5bc/0x1008 [ 234.909136][ T6415] __arm64_sys_mount+0x514/0x5f0 [ 234.909957][ T6415] invoke_syscall+0x98/0x2b0 [ 234.910722][ T6415] el0_svc_common+0x138/0x258 [ 234.911533][ T6415] do_el0_svc+0x58/0x13c [ 234.912271][ T6415] el0_svc+0x78/0x1d0 [ 234.912970][ T6415] el0t_64_sync_handler+0xcc/0xe4 [ 234.913769][ T6415] el0t_64_sync+0x1a0/0x1a4 [ 234.916013][ T6415] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 234.918057][ T6415] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.092121][ T6417] loop1: detected capacity change from 0 to 32768 [ 235.168711][ T6417] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.170713][ T6417] CPU: 0 PID: 6417 Comm: syz.1.718 Not tainted syzkaller #0 [ 235.171994][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.173612][ T6417] Call trace: [ 235.174107][ T6417] dump_backtrace+0x0/0x458 [ 235.174831][ T6417] show_stack+0x2c/0x3c [ 235.175497][ T6417] __dump_stack+0x30/0x40 [ 235.176240][ T6417] dump_stack_lvl+0xf4/0x15c [ 235.176993][ T6417] dump_stack+0x1c/0x5c [ 235.177756][ T6417] sysfs_create_dir_ns+0x244/0x264 [ 235.178585][ T6417] kobject_add_internal+0x5ac/0xc3c [ 235.179561][ T6417] kobject_init_and_add+0x124/0x190 [ 235.180499][ T6417] gfs2_sys_fs_add+0x200/0x41c [ 235.181255][ T6417] gfs2_fill_super+0xddc/0x1a18 [ 235.182129][ T6417] get_tree_bdev+0x358/0x544 [ 235.182871][ T6417] gfs2_get_tree+0x54/0x1b4 [ 235.183704][ T6417] vfs_get_tree+0x90/0x274 [ 235.184492][ T6417] do_new_mount+0x228/0x810 [ 235.185274][ T6417] path_mount+0x5bc/0x1008 [ 235.185953][ T6417] __arm64_sys_mount+0x514/0x5f0 [ 235.186756][ T6417] invoke_syscall+0x98/0x2b0 [ 235.187480][ T6417] el0_svc_common+0x138/0x258 [ 235.188258][ T6417] do_el0_svc+0x58/0x13c [ 235.188947][ T6417] el0_svc+0x78/0x1d0 [ 235.189619][ T6417] el0t_64_sync_handler+0xcc/0xe4 [ 235.190520][ T6417] el0t_64_sync+0x1a0/0x1a4 [ 235.191538][ T6417] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.193551][ T6417] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.331593][ T6419] loop1: detected capacity change from 0 to 32768 [ 235.379776][ T6419] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.381139][ T6419] CPU: 1 PID: 6419 Comm: syz.1.719 Not tainted syzkaller #0 [ 235.382360][ T6419] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.384113][ T6419] Call trace: [ 235.384660][ T6419] dump_backtrace+0x0/0x458 [ 235.385446][ T6419] show_stack+0x2c/0x3c [ 235.386201][ T6419] __dump_stack+0x30/0x40 [ 235.386965][ T6419] dump_stack_lvl+0xf4/0x15c [ 235.387711][ T6419] dump_stack+0x1c/0x5c [ 235.388436][ T6419] sysfs_create_dir_ns+0x244/0x264 [ 235.389245][ T6419] kobject_add_internal+0x5ac/0xc3c [ 235.390016][ T6419] kobject_init_and_add+0x124/0x190 [ 235.390846][ T6419] gfs2_sys_fs_add+0x200/0x41c [ 235.391643][ T6419] gfs2_fill_super+0xddc/0x1a18 [ 235.392451][ T6419] get_tree_bdev+0x358/0x544 [ 235.393171][ T6419] gfs2_get_tree+0x54/0x1b4 [ 235.393849][ T6419] vfs_get_tree+0x90/0x274 [ 235.394532][ T6419] do_new_mount+0x228/0x810 [ 235.395339][ T6419] path_mount+0x5bc/0x1008 [ 235.396143][ T6419] __arm64_sys_mount+0x514/0x5f0 [ 235.396943][ T6419] invoke_syscall+0x98/0x2b0 [ 235.397699][ T6419] el0_svc_common+0x138/0x258 [ 235.398495][ T6419] do_el0_svc+0x58/0x13c [ 235.399187][ T6419] el0_svc+0x78/0x1d0 [ 235.399826][ T6419] el0t_64_sync_handler+0xcc/0xe4 [ 235.400715][ T6419] el0t_64_sync+0x1a0/0x1a4 [ 235.402905][ T6419] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.404824][ T6419] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.533915][ T6421] loop1: detected capacity change from 0 to 32768 [ 235.578945][ T6421] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.580371][ T6421] CPU: 1 PID: 6421 Comm: syz.1.720 Not tainted syzkaller #0 [ 235.581611][ T6421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.583399][ T6421] Call trace: [ 235.583929][ T6421] dump_backtrace+0x0/0x458 [ 235.584653][ T6421] show_stack+0x2c/0x3c [ 235.585326][ T6421] __dump_stack+0x30/0x40 [ 235.585995][ T6421] dump_stack_lvl+0xf4/0x15c [ 235.586745][ T6421] dump_stack+0x1c/0x5c [ 235.587381][ T6421] sysfs_create_dir_ns+0x244/0x264 [ 235.588284][ T6421] kobject_add_internal+0x5ac/0xc3c [ 235.589142][ T6421] kobject_init_and_add+0x124/0x190 [ 235.590089][ T6421] gfs2_sys_fs_add+0x200/0x41c [ 235.590901][ T6421] gfs2_fill_super+0xddc/0x1a18 [ 235.591702][ T6421] get_tree_bdev+0x358/0x544 [ 235.592463][ T6421] gfs2_get_tree+0x54/0x1b4 [ 235.593233][ T6421] vfs_get_tree+0x90/0x274 [ 235.594014][ T6421] do_new_mount+0x228/0x810 [ 235.594721][ T6421] path_mount+0x5bc/0x1008 [ 235.595518][ T6421] __arm64_sys_mount+0x514/0x5f0 [ 235.596380][ T6421] invoke_syscall+0x98/0x2b0 [ 235.597121][ T6421] el0_svc_common+0x138/0x258 [ 235.597916][ T6421] do_el0_svc+0x58/0x13c [ 235.598608][ T6421] el0_svc+0x78/0x1d0 [ 235.599280][ T6421] el0t_64_sync_handler+0xcc/0xe4 [ 235.600088][ T6421] el0t_64_sync+0x1a0/0x1a4 [ 235.602343][ T6421] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.604651][ T6421] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.736603][ T6423] loop1: detected capacity change from 0 to 32768 [ 235.793489][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 235.794775][ T6423] CPU: 1 PID: 6423 Comm: syz.1.721 Not tainted syzkaller #0 [ 235.796021][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 235.797649][ T6423] Call trace: [ 235.798191][ T6423] dump_backtrace+0x0/0x458 [ 235.798939][ T6423] show_stack+0x2c/0x3c [ 235.799639][ T6423] __dump_stack+0x30/0x40 [ 235.800388][ T6423] dump_stack_lvl+0xf4/0x15c [ 235.801191][ T6423] dump_stack+0x1c/0x5c [ 235.801895][ T6423] sysfs_create_dir_ns+0x244/0x264 [ 235.802753][ T6423] kobject_add_internal+0x5ac/0xc3c [ 235.803665][ T6423] kobject_init_and_add+0x124/0x190 [ 235.804575][ T6423] gfs2_sys_fs_add+0x200/0x41c [ 235.805329][ T6423] gfs2_fill_super+0xddc/0x1a18 [ 235.806134][ T6423] get_tree_bdev+0x358/0x544 [ 235.806955][ T6423] gfs2_get_tree+0x54/0x1b4 [ 235.807729][ T6423] vfs_get_tree+0x90/0x274 [ 235.808461][ T6423] do_new_mount+0x228/0x810 [ 235.809187][ T6423] path_mount+0x5bc/0x1008 [ 235.809925][ T6423] __arm64_sys_mount+0x514/0x5f0 [ 235.810785][ T6423] invoke_syscall+0x98/0x2b0 [ 235.811580][ T6423] el0_svc_common+0x138/0x258 [ 235.812397][ T6423] do_el0_svc+0x58/0x13c [ 235.813091][ T6423] el0_svc+0x78/0x1d0 [ 235.813828][ T6423] el0t_64_sync_handler+0xcc/0xe4 [ 235.814691][ T6423] el0t_64_sync+0x1a0/0x1a4 [ 235.816824][ T6423] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 235.819023][ T6423] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 235.947681][ T6425] loop1: detected capacity change from 0 to 32768 [ 236.072550][ T6425] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.073802][ T6425] CPU: 1 PID: 6425 Comm: syz.1.722 Not tainted syzkaller #0 [ 236.074993][ T6425] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.076571][ T6425] Call trace: [ 236.077073][ T6425] dump_backtrace+0x0/0x458 [ 236.077808][ T6425] show_stack+0x2c/0x3c [ 236.078479][ T6425] __dump_stack+0x30/0x40 [ 236.079178][ T6425] dump_stack_lvl+0xf4/0x15c [ 236.079947][ T6425] dump_stack+0x1c/0x5c [ 236.080661][ T6425] sysfs_create_dir_ns+0x244/0x264 [ 236.081551][ T6425] kobject_add_internal+0x5ac/0xc3c [ 236.082389][ T6425] kobject_init_and_add+0x124/0x190 [ 236.083274][ T6425] gfs2_sys_fs_add+0x200/0x41c [ 236.084049][ T6425] gfs2_fill_super+0xddc/0x1a18 [ 236.084825][ T6425] get_tree_bdev+0x358/0x544 [ 236.085554][ T6425] gfs2_get_tree+0x54/0x1b4 [ 236.086264][ T6425] vfs_get_tree+0x90/0x274 [ 236.086954][ T6425] do_new_mount+0x228/0x810 [ 236.087708][ T6425] path_mount+0x5bc/0x1008 [ 236.088371][ T6425] __arm64_sys_mount+0x514/0x5f0 [ 236.089181][ T6425] invoke_syscall+0x98/0x2b0 [ 236.089977][ T6425] el0_svc_common+0x138/0x258 [ 236.090844][ T6425] do_el0_svc+0x58/0x13c [ 236.091523][ T6425] el0_svc+0x78/0x1d0 [ 236.092171][ T6425] el0t_64_sync_handler+0xcc/0xe4 [ 236.092997][ T6425] el0t_64_sync+0x1a0/0x1a4 [ 236.094874][ T6425] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.097024][ T6425] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.229349][ T6427] loop1: detected capacity change from 0 to 32768 [ 236.268662][ T6427] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.269876][ T6427] CPU: 0 PID: 6427 Comm: syz.1.723 Not tainted syzkaller #0 [ 236.271151][ T6427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.272785][ T6427] Call trace: [ 236.273279][ T6427] dump_backtrace+0x0/0x458 [ 236.274058][ T6427] show_stack+0x2c/0x3c [ 236.274701][ T6427] __dump_stack+0x30/0x40 [ 236.275412][ T6427] dump_stack_lvl+0xf4/0x15c [ 236.276101][ T6427] dump_stack+0x1c/0x5c [ 236.276834][ T6427] sysfs_create_dir_ns+0x244/0x264 [ 236.277783][ T6427] kobject_add_internal+0x5ac/0xc3c [ 236.278692][ T6427] kobject_init_and_add+0x124/0x190 [ 236.279580][ T6427] gfs2_sys_fs_add+0x200/0x41c [ 236.280412][ T6427] gfs2_fill_super+0xddc/0x1a18 [ 236.281186][ T6427] get_tree_bdev+0x358/0x544 [ 236.281919][ T6427] gfs2_get_tree+0x54/0x1b4 [ 236.282649][ T6427] vfs_get_tree+0x90/0x274 [ 236.283350][ T6427] do_new_mount+0x228/0x810 [ 236.284111][ T6427] path_mount+0x5bc/0x1008 [ 236.284885][ T6427] __arm64_sys_mount+0x514/0x5f0 [ 236.285714][ T6427] invoke_syscall+0x98/0x2b0 [ 236.286472][ T6427] el0_svc_common+0x138/0x258 [ 236.287251][ T6427] do_el0_svc+0x58/0x13c [ 236.287926][ T6427] el0_svc+0x78/0x1d0 [ 236.288572][ T6427] el0t_64_sync_handler+0xcc/0xe4 [ 236.289388][ T6427] el0t_64_sync+0x1a0/0x1a4 [ 236.290277][ T6427] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.292454][ T6427] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.425335][ T6429] loop1: detected capacity change from 0 to 32768 [ 236.433434][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.434588][ T6429] CPU: 1 PID: 6429 Comm: syz.1.724 Not tainted syzkaller #0 [ 236.435827][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.437549][ T6429] Call trace: [ 236.438088][ T6429] dump_backtrace+0x0/0x458 [ 236.438848][ T6429] show_stack+0x2c/0x3c [ 236.439532][ T6429] __dump_stack+0x30/0x40 [ 236.440261][ T6429] dump_stack_lvl+0xf4/0x15c [ 236.441039][ T6429] dump_stack+0x1c/0x5c [ 236.441732][ T6429] sysfs_create_dir_ns+0x244/0x264 [ 236.442557][ T6429] kobject_add_internal+0x5ac/0xc3c [ 236.443522][ T6429] kobject_init_and_add+0x124/0x190 [ 236.444405][ T6429] gfs2_sys_fs_add+0x200/0x41c [ 236.445187][ T6429] gfs2_fill_super+0xddc/0x1a18 [ 236.445995][ T6429] get_tree_bdev+0x358/0x544 [ 236.446727][ T6429] gfs2_get_tree+0x54/0x1b4 [ 236.447526][ T6429] vfs_get_tree+0x90/0x274 [ 236.448292][ T6429] do_new_mount+0x228/0x810 [ 236.449050][ T6429] path_mount+0x5bc/0x1008 [ 236.449798][ T6429] __arm64_sys_mount+0x514/0x5f0 [ 236.450637][ T6429] invoke_syscall+0x98/0x2b0 [ 236.451413][ T6429] el0_svc_common+0x138/0x258 [ 236.452204][ T6429] do_el0_svc+0x58/0x13c [ 236.452913][ T6429] el0_svc+0x78/0x1d0 [ 236.453631][ T6429] el0t_64_sync_handler+0xcc/0xe4 [ 236.454487][ T6429] el0t_64_sync+0x1a0/0x1a4 [ 236.456675][ T6429] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.459168][ T6429] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.590827][ T6431] loop1: detected capacity change from 0 to 32768 [ 236.598282][ T6431] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 236.599696][ T6431] CPU: 0 PID: 6431 Comm: syz.1.725 Not tainted syzkaller #0 [ 236.600863][ T6431] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.602414][ T6431] Call trace: [ 236.602916][ T6431] dump_backtrace+0x0/0x458 [ 236.603609][ T6431] show_stack+0x2c/0x3c [ 236.604248][ T6431] __dump_stack+0x30/0x40 [ 236.604906][ T6431] dump_stack_lvl+0xf4/0x15c [ 236.605627][ T6431] dump_stack+0x1c/0x5c [ 236.606288][ T6431] sysfs_create_dir_ns+0x244/0x264 [ 236.607115][ T6431] kobject_add_internal+0x5ac/0xc3c [ 236.607987][ T6431] kobject_init_and_add+0x124/0x190 [ 236.608940][ T6431] gfs2_sys_fs_add+0x200/0x41c [ 236.609750][ T6431] gfs2_fill_super+0xddc/0x1a18 [ 236.610554][ T6431] get_tree_bdev+0x358/0x544 [ 236.611305][ T6431] gfs2_get_tree+0x54/0x1b4 [ 236.612038][ T6431] vfs_get_tree+0x90/0x274 [ 236.612743][ T6431] do_new_mount+0x228/0x810 [ 236.613449][ T6431] path_mount+0x5bc/0x1008 [ 236.614183][ T6431] __arm64_sys_mount+0x514/0x5f0 [ 236.614946][ T6431] invoke_syscall+0x98/0x2b0 [ 236.615689][ T6431] el0_svc_common+0x138/0x258 [ 236.616470][ T6431] do_el0_svc+0x58/0x13c [ 236.617174][ T6431] el0_svc+0x78/0x1d0 [ 236.617782][ T6431] el0t_64_sync_handler+0xcc/0xe4 [ 236.618578][ T6431] el0t_64_sync+0x1a0/0x1a4 [ 236.619454][ T6431] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 236.621582][ T6431] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 236.647443][ T27] INFO: task syz-executor:4790 blocked for more than 143 seconds. [ 236.648763][ T27] Not tainted syzkaller #0 [ 236.649526][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 236.651022][ T27] task:syz-executor state:D stack: 0 pid: 4790 ppid: 1 flags:0x00000009 [ 236.652524][ T27] Call trace: [ 236.653104][ T27] __switch_to+0x2f4/0x540 [ 236.653815][ T27] __schedule+0xdfc/0x1bc4 [ 236.654518][ T27] schedule+0x11c/0x1c8 [ 236.655205][ T27] schedule_timeout+0x194/0x2f4 [ 236.655956][ T27] gfs2_gl_hash_clear+0x174/0x2cc [ 236.656794][ T27] gfs2_put_super+0x614/0x6b4 [ 236.658218][ T27] generic_shutdown_super+0x130/0x2f0 [ 236.659059][ T27] kill_block_super+0x70/0xdc [ 236.659812][ T27] gfs2_kill_sb+0xc0/0xd4 [ 236.660513][ T27] deactivate_locked_super+0xb8/0x134 [ 236.661367][ T27] deactivate_super+0xf0/0x110 [ 236.662157][ T27] cleanup_mnt+0x3b8/0x46c [ 236.662885][ T27] __cleanup_mnt+0x20/0x30 [ 236.663613][ T27] task_work_run+0x12c/0x1d8 [ 236.664733][ T27] do_notify_resume+0x2450/0x309c [ 236.665626][ T27] el0_svc+0xf0/0x1d0 [ 236.666332][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 236.667220][ T27] el0t_64_sync+0x1a0/0x1a4 [ 236.670990][ T27] [ 236.670990][ T27] Showing all locks held in the system: [ 236.677608][ T27] 1 lock held by khungtaskd/27: [ 236.678449][ T27] #0: ffff800014461360 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 236.680081][ T27] 2 locks held by getty/3803: [ 236.680775][ T27] #0: ffff0000d5490098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 236.682385][ T27] #1: ffff80001be7e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 236.684117][ T27] 1 lock held by syz-executor/4790: [ 236.684975][ T27] #0: ffff0000d63cc0e0 (&type->s_umount_key#52){++++}-{3:3}, at: deactivate_super+0xe8/0x110 [ 236.686685][ T27] 2 locks held by kworker/0:14/4948: [ 236.693501][ T27] #0: ffff0001a0f96958 (&rq->__lock){-.-.}-{2:2}, at: __schedule+0x314/0x1bc4 [ 236.695074][ T27] #1: ffff0001a0f83c88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x43c/0x67c [ 236.696956][ T27] 1 lock held by udevd/4982: [ 236.698136][ T27] [ 236.698514][ T27] ============================================= [ 236.698514][ T27] [ 236.699910][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 236.700970][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 236.702173][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 [ 236.703840][ T27] Call trace: [ 236.704390][ T27] dump_backtrace+0x0/0x458 [ 236.705143][ T27] show_stack+0x2c/0x3c [ 236.705816][ T27] __dump_stack+0x30/0x40 [ 236.706559][ T27] dump_stack_lvl+0xf4/0x15c [ 236.707259][ T27] dump_stack+0x1c/0x5c [ 236.708007][ T27] panic+0x2fc/0x860 [ 236.708651][ T27] hung_task_panic+0x0/0x2c [ 236.709384][ T27] kthread+0x374/0x454 [ 236.710074][ T27] ret_from_fork+0x10/0x20 [ 236.710791][ T27] SMP: stopping secondary CPUs [ 236.711638][ T27] Kernel Offset: disabled [ 236.712380][ T27] CPU features: 0x8,000003c1,7d33ffd9 [ 236.713263][ T27] Memory Limit: none [ 237.069559][ T27] Rebooting in 86400 seconds..