kobject_init_and_add+0x128/0x194 [ 195.905547][ T6344] gfs2_sys_fs_add+0x208/0x428 [ 195.906334][ T6344] gfs2_fill_super+0xe20/0x1a9c [ 195.907179][ T6344] get_tree_bdev+0x35c/0x54c [ 195.907912][ T6344] gfs2_get_tree+0x58/0x1b8 [ 195.908660][ T6344] vfs_get_tree+0x90/0x278 [ 195.909386][ T6344] do_new_mount+0x228/0x804 [ 195.910287][ T6344] path_mount+0x57c/0xfe8 [ 195.911144][ T6344] __arm64_sys_mount+0x488/0x5f8 [ 195.911968][ T6344] invoke_syscall+0x98/0x28c [ 195.912704][ T6344] el0_svc_common+0x13c/0x258 [ 195.913437][ T6344] do_el0_svc+0x5c/0x140 [ 195.914126][ T6344] el0_svc+0x78/0x1d0 [ 195.914790][ T6344] el0t_64_sync_handler+0xcc/0xe4 [ 195.915702][ T6344] el0t_64_sync+0x1a0/0x1a4 [ 195.918372][ T6344] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 195.920529][ T6344] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.057084][ T6347] loop1: detected capacity change from 0 to 32768 [ 196.152133][ T6347] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.153455][ T6347] CPU: 0 PID: 6347 Comm: syz.1.551 Not tainted syzkaller #0 [ 196.154621][ T6347] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.156284][ T6347] Call trace: [ 196.156879][ T6347] dump_backtrace+0x0/0x458 [ 196.157601][ T6347] show_stack+0x2c/0x3c [ 196.158344][ T6347] __dump_stack+0x30/0x40 [ 196.159009][ T6347] dump_stack_lvl+0xf4/0x15c [ 196.159807][ T6347] dump_stack+0x1c/0x5c [ 196.160524][ T6347] sysfs_create_dir_ns+0x244/0x264 [ 196.161394][ T6347] kobject_add_internal+0x594/0xc2c [ 196.162286][ T6347] kobject_init_and_add+0x128/0x194 [ 196.163156][ T6347] gfs2_sys_fs_add+0x208/0x428 [ 196.163915][ T6347] gfs2_fill_super+0xe20/0x1a9c [ 196.164733][ T6347] get_tree_bdev+0x35c/0x54c [ 196.165488][ T6347] gfs2_get_tree+0x58/0x1b8 [ 196.166218][ T6347] vfs_get_tree+0x90/0x278 [ 196.166935][ T6347] do_new_mount+0x228/0x804 [ 196.167686][ T6347] path_mount+0x57c/0xfe8 [ 196.168435][ T6347] __arm64_sys_mount+0x488/0x5f8 [ 196.169247][ T6347] invoke_syscall+0x98/0x28c [ 196.170040][ T6347] el0_svc_common+0x13c/0x258 [ 196.170815][ T6347] do_el0_svc+0x5c/0x140 [ 196.171581][ T6347] el0_svc+0x78/0x1d0 [ 196.172299][ T6347] el0t_64_sync_handler+0xcc/0xe4 [ 196.173184][ T6347] el0t_64_sync+0x1a0/0x1a4 [ 196.174200][ T6347] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.176501][ T6347] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.311188][ T6350] loop1: detected capacity change from 0 to 32768 [ 196.359157][ T6350] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.360427][ T6350] CPU: 1 PID: 6350 Comm: syz.1.552 Not tainted syzkaller #0 [ 196.361676][ T6350] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.363385][ T6350] Call trace: [ 196.363956][ T6350] dump_backtrace+0x0/0x458 [ 196.364798][ T6350] show_stack+0x2c/0x3c [ 196.365497][ T6350] __dump_stack+0x30/0x40 [ 196.366264][ T6350] dump_stack_lvl+0xf4/0x15c [ 196.367049][ T6350] dump_stack+0x1c/0x5c [ 196.367719][ T6350] sysfs_create_dir_ns+0x244/0x264 [ 196.368568][ T6350] kobject_add_internal+0x594/0xc2c [ 196.369425][ T6350] kobject_init_and_add+0x128/0x194 [ 196.370378][ T6350] gfs2_sys_fs_add+0x208/0x428 [ 196.371184][ T6350] gfs2_fill_super+0xe20/0x1a9c [ 196.372084][ T6350] get_tree_bdev+0x35c/0x54c [ 196.372867][ T6350] gfs2_get_tree+0x58/0x1b8 [ 196.373634][ T6350] vfs_get_tree+0x90/0x278 [ 196.374367][ T6350] do_new_mount+0x228/0x804 [ 196.375111][ T6350] path_mount+0x57c/0xfe8 [ 196.375972][ T6350] __arm64_sys_mount+0x488/0x5f8 [ 196.376883][ T6350] invoke_syscall+0x98/0x28c [ 196.377665][ T6350] el0_svc_common+0x13c/0x258 [ 196.378481][ T6350] do_el0_svc+0x5c/0x140 [ 196.379203][ T6350] el0_svc+0x78/0x1d0 [ 196.379875][ T6350] el0t_64_sync_handler+0xcc/0xe4 [ 196.380738][ T6350] el0t_64_sync+0x1a0/0x1a4 [ 196.383037][ T6350] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.385209][ T6350] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.518403][ T6353] loop1: detected capacity change from 0 to 32768 [ 196.579541][ T6353] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.580934][ T6353] CPU: 0 PID: 6353 Comm: syz.1.553 Not tainted syzkaller #0 [ 196.582287][ T6353] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.583851][ T6353] Call trace: [ 196.584376][ T6353] dump_backtrace+0x0/0x458 [ 196.585152][ T6353] show_stack+0x2c/0x3c [ 196.585782][ T6353] __dump_stack+0x30/0x40 [ 196.586527][ T6353] dump_stack_lvl+0xf4/0x15c [ 196.587300][ T6353] dump_stack+0x1c/0x5c [ 196.588013][ T6353] sysfs_create_dir_ns+0x244/0x264 [ 196.588938][ T6353] kobject_add_internal+0x594/0xc2c [ 196.589807][ T6353] kobject_init_and_add+0x128/0x194 [ 196.590664][ T6353] gfs2_sys_fs_add+0x208/0x428 [ 196.591503][ T6353] gfs2_fill_super+0xe20/0x1a9c [ 196.592292][ T6353] get_tree_bdev+0x35c/0x54c [ 196.593097][ T6353] gfs2_get_tree+0x58/0x1b8 [ 196.593942][ T6353] vfs_get_tree+0x90/0x278 [ 196.594650][ T6353] do_new_mount+0x228/0x804 [ 196.595396][ T6353] path_mount+0x57c/0xfe8 [ 196.596192][ T6353] __arm64_sys_mount+0x488/0x5f8 [ 196.597050][ T6353] invoke_syscall+0x98/0x28c [ 196.597869][ T6353] el0_svc_common+0x13c/0x258 [ 196.598711][ T6353] do_el0_svc+0x5c/0x140 [ 196.599451][ T6353] el0_svc+0x78/0x1d0 [ 196.600093][ T6353] el0t_64_sync_handler+0xcc/0xe4 [ 196.600949][ T6353] el0t_64_sync+0x1a0/0x1a4 [ 196.602318][ T6353] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.604499][ T6353] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.741037][ T6356] loop1: detected capacity change from 0 to 32768 [ 196.748976][ T6356] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.750200][ T6356] CPU: 1 PID: 6356 Comm: syz.1.554 Not tainted syzkaller #0 [ 196.751378][ T6356] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.752987][ T6356] Call trace: [ 196.753489][ T6356] dump_backtrace+0x0/0x458 [ 196.754227][ T6356] show_stack+0x2c/0x3c [ 196.754933][ T6356] __dump_stack+0x30/0x40 [ 196.755628][ T6356] dump_stack_lvl+0xf4/0x15c [ 196.756360][ T6356] dump_stack+0x1c/0x5c [ 196.757010][ T6356] sysfs_create_dir_ns+0x244/0x264 [ 196.757895][ T6356] kobject_add_internal+0x594/0xc2c [ 196.758753][ T6356] kobject_init_and_add+0x128/0x194 [ 196.759795][ T6356] gfs2_sys_fs_add+0x208/0x428 [ 196.760673][ T6356] gfs2_fill_super+0xe20/0x1a9c [ 196.761549][ T6356] get_tree_bdev+0x35c/0x54c [ 196.762418][ T6356] gfs2_get_tree+0x58/0x1b8 [ 196.763250][ T6356] vfs_get_tree+0x90/0x278 [ 196.764029][ T6356] do_new_mount+0x228/0x804 [ 196.764815][ T6356] path_mount+0x57c/0xfe8 [ 196.765637][ T6356] __arm64_sys_mount+0x488/0x5f8 [ 196.766550][ T6356] invoke_syscall+0x98/0x28c [ 196.767317][ T6356] el0_svc_common+0x13c/0x258 [ 196.768120][ T6356] do_el0_svc+0x5c/0x140 [ 196.768899][ T6356] el0_svc+0x78/0x1d0 [ 196.769578][ T6356] el0t_64_sync_handler+0xcc/0xe4 [ 196.770460][ T6356] el0t_64_sync+0x1a0/0x1a4 [ 196.771840][ T6356] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.774006][ T6356] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 196.906514][ T6359] loop1: detected capacity change from 0 to 32768 [ 196.914327][ T6359] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 196.915445][ T6359] CPU: 0 PID: 6359 Comm: syz.1.555 Not tainted syzkaller #0 [ 196.916525][ T6359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 196.918123][ T6359] Call trace: [ 196.918686][ T6359] dump_backtrace+0x0/0x458 [ 196.919417][ T6359] show_stack+0x2c/0x3c [ 196.920125][ T6359] __dump_stack+0x30/0x40 [ 196.920831][ T6359] dump_stack_lvl+0xf4/0x15c [ 196.921695][ T6359] dump_stack+0x1c/0x5c [ 196.922407][ T6359] sysfs_create_dir_ns+0x244/0x264 [ 196.923274][ T6359] kobject_add_internal+0x594/0xc2c [ 196.924143][ T6359] kobject_init_and_add+0x128/0x194 [ 196.924967][ T6359] gfs2_sys_fs_add+0x208/0x428 [ 196.925835][ T6359] gfs2_fill_super+0xe20/0x1a9c [ 196.926633][ T6359] get_tree_bdev+0x35c/0x54c [ 196.927391][ T6359] gfs2_get_tree+0x58/0x1b8 [ 196.928132][ T6359] vfs_get_tree+0x90/0x278 [ 196.928853][ T6359] do_new_mount+0x228/0x804 [ 196.929600][ T6359] path_mount+0x57c/0xfe8 [ 196.930296][ T6359] __arm64_sys_mount+0x488/0x5f8 [ 196.931195][ T6359] invoke_syscall+0x98/0x28c [ 196.931981][ T6359] el0_svc_common+0x13c/0x258 [ 196.932744][ T6359] do_el0_svc+0x5c/0x140 [ 196.933504][ T6359] el0_svc+0x78/0x1d0 [ 196.934177][ T6359] el0t_64_sync_handler+0xcc/0xe4 [ 196.935071][ T6359] el0t_64_sync+0x1a0/0x1a4 [ 196.940235][ T6359] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 196.942386][ T6359] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.075685][ T6362] loop1: detected capacity change from 0 to 32768 [ 197.113969][ T6362] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.115265][ T6362] CPU: 0 PID: 6362 Comm: syz.1.556 Not tainted syzkaller #0 [ 197.116493][ T6362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.118356][ T6362] Call trace: [ 197.118936][ T6362] dump_backtrace+0x0/0x458 [ 197.119771][ T6362] show_stack+0x2c/0x3c [ 197.120453][ T6362] __dump_stack+0x30/0x40 [ 197.121204][ T6362] dump_stack_lvl+0xf4/0x15c [ 197.121960][ T6362] dump_stack+0x1c/0x5c [ 197.122648][ T6362] sysfs_create_dir_ns+0x244/0x264 [ 197.123509][ T6362] kobject_add_internal+0x594/0xc2c [ 197.124382][ T6362] kobject_init_and_add+0x128/0x194 [ 197.125293][ T6362] gfs2_sys_fs_add+0x208/0x428 [ 197.126151][ T6362] gfs2_fill_super+0xe20/0x1a9c [ 197.126991][ T6362] get_tree_bdev+0x35c/0x54c [ 197.127789][ T6362] gfs2_get_tree+0x58/0x1b8 [ 197.128569][ T6362] vfs_get_tree+0x90/0x278 [ 197.129300][ T6362] do_new_mount+0x228/0x804 [ 197.130060][ T6362] path_mount+0x57c/0xfe8 [ 197.130822][ T6362] __arm64_sys_mount+0x488/0x5f8 [ 197.131654][ T6362] invoke_syscall+0x98/0x28c [ 197.132420][ T6362] el0_svc_common+0x13c/0x258 [ 197.133285][ T6362] do_el0_svc+0x5c/0x140 [ 197.133983][ T6362] el0_svc+0x78/0x1d0 [ 197.134637][ T6362] el0t_64_sync_handler+0xcc/0xe4 [ 197.135462][ T6362] el0t_64_sync+0x1a0/0x1a4 [ 197.138156][ T6362] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.140333][ T6362] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.313161][ T6365] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.314484][ T6365] CPU: 0 PID: 6365 Comm: syz.1.557 Not tainted syzkaller #0 [ 197.315707][ T6365] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.317300][ T6365] Call trace: [ 197.317839][ T6365] dump_backtrace+0x0/0x458 [ 197.318649][ T6365] show_stack+0x2c/0x3c [ 197.319375][ T6365] __dump_stack+0x30/0x40 [ 197.320106][ T6365] dump_stack_lvl+0xf4/0x15c [ 197.320885][ T6365] dump_stack+0x1c/0x5c [ 197.321571][ T6365] sysfs_create_dir_ns+0x244/0x264 [ 197.322451][ T6365] kobject_add_internal+0x594/0xc2c [ 197.323398][ T6365] kobject_init_and_add+0x128/0x194 [ 197.324260][ T6365] gfs2_sys_fs_add+0x208/0x428 [ 197.325052][ T6365] gfs2_fill_super+0xe20/0x1a9c [ 197.325846][ T6365] get_tree_bdev+0x35c/0x54c [ 197.326632][ T6365] gfs2_get_tree+0x58/0x1b8 [ 197.327412][ T6365] vfs_get_tree+0x90/0x278 [ 197.328146][ T6365] do_new_mount+0x228/0x804 [ 197.328906][ T6365] path_mount+0x57c/0xfe8 [ 197.329619][ T6365] __arm64_sys_mount+0x488/0x5f8 [ 197.330505][ T6365] invoke_syscall+0x98/0x28c [ 197.331403][ T6365] el0_svc_common+0x13c/0x258 [ 197.332194][ T6365] do_el0_svc+0x5c/0x140 [ 197.332880][ T6365] el0_svc+0x78/0x1d0 [ 197.333584][ T6365] el0t_64_sync_handler+0xcc/0xe4 [ 197.334397][ T6365] el0t_64_sync+0x1a0/0x1a4 [ 197.336660][ T6365] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.339151][ T6365] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.484670][ T6368] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.486066][ T6368] CPU: 0 PID: 6368 Comm: syz.1.558 Not tainted syzkaller #0 [ 197.487209][ T6368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.489000][ T6368] Call trace: [ 197.489584][ T6368] dump_backtrace+0x0/0x458 [ 197.490399][ T6368] show_stack+0x2c/0x3c [ 197.491126][ T6368] __dump_stack+0x30/0x40 [ 197.491901][ T6368] dump_stack_lvl+0xf4/0x15c [ 197.492682][ T6368] dump_stack+0x1c/0x5c [ 197.493395][ T6368] sysfs_create_dir_ns+0x244/0x264 [ 197.494314][ T6368] kobject_add_internal+0x594/0xc2c [ 197.495244][ T6368] kobject_init_and_add+0x128/0x194 [ 197.496155][ T6368] gfs2_sys_fs_add+0x208/0x428 [ 197.497009][ T6368] gfs2_fill_super+0xe20/0x1a9c [ 197.497795][ T6368] get_tree_bdev+0x35c/0x54c [ 197.498614][ T6368] gfs2_get_tree+0x58/0x1b8 [ 197.499405][ T6368] vfs_get_tree+0x90/0x278 [ 197.500141][ T6368] do_new_mount+0x228/0x804 [ 197.500900][ T6368] path_mount+0x57c/0xfe8 [ 197.501620][ T6368] __arm64_sys_mount+0x488/0x5f8 [ 197.502482][ T6368] invoke_syscall+0x98/0x28c [ 197.503222][ T6368] el0_svc_common+0x13c/0x258 [ 197.504007][ T6368] do_el0_svc+0x5c/0x140 [ 197.504711][ T6368] el0_svc+0x78/0x1d0 [ 197.505372][ T6368] el0t_64_sync_handler+0xcc/0xe4 [ 197.506262][ T6368] el0t_64_sync+0x1a0/0x1a4 [ 197.509955][ T6368] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.512117][ T6368] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.719490][ T6371] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.720854][ T6371] CPU: 0 PID: 6371 Comm: syz.1.559 Not tainted syzkaller #0 [ 197.722127][ T6371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 197.723722][ T6371] Call trace: [ 197.724259][ T6371] dump_backtrace+0x0/0x458 [ 197.724939][ T6371] show_stack+0x2c/0x3c [ 197.725626][ T6371] __dump_stack+0x30/0x40 [ 197.726316][ T6371] dump_stack_lvl+0xf4/0x15c [ 197.727213][ T6371] dump_stack+0x1c/0x5c [ 197.728070][ T6371] sysfs_create_dir_ns+0x244/0x264 [ 197.729103][ T6371] kobject_add_internal+0x594/0xc2c [ 197.730127][ T6371] kobject_init_and_add+0x128/0x194 [ 197.730974][ T6371] gfs2_sys_fs_add+0x208/0x428 [ 197.731919][ T6371] gfs2_fill_super+0xe20/0x1a9c [ 197.732876][ T6371] get_tree_bdev+0x35c/0x54c [ 197.733787][ T6371] gfs2_get_tree+0x58/0x1b8 [ 197.734717][ T6371] vfs_get_tree+0x90/0x278 [ 197.735550][ T6371] do_new_mount+0x228/0x804 [ 197.736340][ T6371] path_mount+0x57c/0xfe8 [ 197.737195][ T6371] __arm64_sys_mount+0x488/0x5f8 [ 197.738097][ T6371] invoke_syscall+0x98/0x28c [ 197.738954][ T6371] el0_svc_common+0x13c/0x258 [ 197.739836][ T6371] do_el0_svc+0x5c/0x140 [ 197.740526][ T6371] el0_svc+0x78/0x1d0 [ 197.741175][ T6371] el0t_64_sync_handler+0xcc/0xe4 [ 197.741998][ T6371] el0t_64_sync+0x1a0/0x1a4 [ 197.744273][ T6371] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.746501][ T6371] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.000558][ T6374] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.001864][ T6374] CPU: 0 PID: 6374 Comm: syz.1.560 Not tainted syzkaller #0 [ 198.003138][ T6374] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.004915][ T6374] Call trace: [ 198.005479][ T6374] dump_backtrace+0x0/0x458 [ 198.006262][ T6374] show_stack+0x2c/0x3c [ 198.006963][ T6374] __dump_stack+0x30/0x40 [ 198.007721][ T6374] dump_stack_lvl+0xf4/0x15c [ 198.008527][ T6374] dump_stack+0x1c/0x5c [ 198.009247][ T6374] sysfs_create_dir_ns+0x244/0x264 [ 198.010168][ T6374] kobject_add_internal+0x594/0xc2c [ 198.011064][ T6374] kobject_init_and_add+0x128/0x194 [ 198.011978][ T6374] gfs2_sys_fs_add+0x208/0x428 [ 198.012843][ T6374] gfs2_fill_super+0xe20/0x1a9c [ 198.013651][ T6374] get_tree_bdev+0x35c/0x54c [ 198.014415][ T6374] gfs2_get_tree+0x58/0x1b8 [ 198.015175][ T6374] vfs_get_tree+0x90/0x278 [ 198.015941][ T6374] do_new_mount+0x228/0x804 [ 198.016761][ T6374] path_mount+0x57c/0xfe8 [ 198.017516][ T6374] __arm64_sys_mount+0x488/0x5f8 [ 198.018389][ T6374] invoke_syscall+0x98/0x28c [ 198.019169][ T6374] el0_svc_common+0x13c/0x258 [ 198.020028][ T6374] do_el0_svc+0x5c/0x140 [ 198.020748][ T6374] el0_svc+0x78/0x1d0 [ 198.021449][ T6374] el0t_64_sync_handler+0xcc/0xe4 [ 198.022349][ T6374] el0t_64_sync+0x1a0/0x1a4 [ 198.024639][ T6374] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.026872][ T6374] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.222829][ T6377] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.224091][ T6377] CPU: 0 PID: 6377 Comm: syz.1.561 Not tainted syzkaller #0 [ 198.225229][ T6377] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.226838][ T6377] Call trace: [ 198.227327][ T6377] dump_backtrace+0x0/0x458 [ 198.228029][ T6377] show_stack+0x2c/0x3c [ 198.228707][ T6377] __dump_stack+0x30/0x40 [ 198.229474][ T6377] dump_stack_lvl+0xf4/0x15c [ 198.230230][ T6377] dump_stack+0x1c/0x5c [ 198.230990][ T6377] sysfs_create_dir_ns+0x244/0x264 [ 198.231867][ T6377] kobject_add_internal+0x594/0xc2c [ 198.232784][ T6377] kobject_init_and_add+0x128/0x194 [ 198.233679][ T6377] gfs2_sys_fs_add+0x208/0x428 [ 198.234448][ T6377] gfs2_fill_super+0xe20/0x1a9c [ 198.235253][ T6377] get_tree_bdev+0x35c/0x54c [ 198.235972][ T6377] gfs2_get_tree+0x58/0x1b8 [ 198.236681][ T6377] vfs_get_tree+0x90/0x278 [ 198.237381][ T6377] do_new_mount+0x228/0x804 [ 198.238208][ T6377] path_mount+0x57c/0xfe8 [ 198.238904][ T6377] __arm64_sys_mount+0x488/0x5f8 [ 198.239720][ T6377] invoke_syscall+0x98/0x28c [ 198.240465][ T6377] el0_svc_common+0x13c/0x258 [ 198.241204][ T6377] do_el0_svc+0x5c/0x140 [ 198.241947][ T6377] el0_svc+0x78/0x1d0 [ 198.242647][ T6377] el0t_64_sync_handler+0xcc/0xe4 [ 198.243469][ T6377] el0t_64_sync+0x1a0/0x1a4 [ 198.245763][ T6377] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.249395][ T6377] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.394666][ T6380] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.395961][ T6380] CPU: 1 PID: 6380 Comm: syz.1.562 Not tainted syzkaller #0 [ 198.397210][ T6380] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.398884][ T6380] Call trace: [ 198.399435][ T6380] dump_backtrace+0x0/0x458 [ 198.400137][ T6380] show_stack+0x2c/0x3c [ 198.400876][ T6380] __dump_stack+0x30/0x40 [ 198.401627][ T6380] dump_stack_lvl+0xf4/0x15c [ 198.402419][ T6380] dump_stack+0x1c/0x5c [ 198.403109][ T6380] sysfs_create_dir_ns+0x244/0x264 [ 198.403988][ T6380] kobject_add_internal+0x594/0xc2c [ 198.404888][ T6380] kobject_init_and_add+0x128/0x194 [ 198.405805][ T6380] gfs2_sys_fs_add+0x208/0x428 [ 198.406623][ T6380] gfs2_fill_super+0xe20/0x1a9c [ 198.407414][ T6380] get_tree_bdev+0x35c/0x54c [ 198.408168][ T6380] gfs2_get_tree+0x58/0x1b8 [ 198.408892][ T6380] vfs_get_tree+0x90/0x278 [ 198.409618][ T6380] do_new_mount+0x228/0x804 [ 198.410368][ T6380] path_mount+0x57c/0xfe8 [ 198.411233][ T6380] __arm64_sys_mount+0x488/0x5f8 [ 198.412062][ T6380] invoke_syscall+0x98/0x28c [ 198.412855][ T6380] el0_svc_common+0x13c/0x258 [ 198.413644][ T6380] do_el0_svc+0x5c/0x140 [ 198.414360][ T6380] el0_svc+0x78/0x1d0 [ 198.415085][ T6380] el0t_64_sync_handler+0xcc/0xe4 [ 198.415928][ T6380] el0t_64_sync+0x1a0/0x1a4 [ 198.418686][ T6380] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.420725][ T6380] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.594050][ T6383] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.595491][ T6383] CPU: 1 PID: 6383 Comm: syz.1.563 Not tainted syzkaller #0 [ 198.596647][ T6383] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.598318][ T6383] Call trace: [ 198.598857][ T6383] dump_backtrace+0x0/0x458 [ 198.599618][ T6383] show_stack+0x2c/0x3c [ 198.600337][ T6383] __dump_stack+0x30/0x40 [ 198.601074][ T6383] dump_stack_lvl+0xf4/0x15c [ 198.601888][ T6383] dump_stack+0x1c/0x5c [ 198.602622][ T6383] sysfs_create_dir_ns+0x244/0x264 [ 198.603474][ T6383] kobject_add_internal+0x594/0xc2c [ 198.604376][ T6383] kobject_init_and_add+0x128/0x194 [ 198.605224][ T6383] gfs2_sys_fs_add+0x208/0x428 [ 198.605978][ T6383] gfs2_fill_super+0xe20/0x1a9c [ 198.606762][ T6383] get_tree_bdev+0x35c/0x54c [ 198.607506][ T6383] gfs2_get_tree+0x58/0x1b8 [ 198.608242][ T6383] vfs_get_tree+0x90/0x278 [ 198.608955][ T6383] do_new_mount+0x228/0x804 [ 198.609706][ T6383] path_mount+0x57c/0xfe8 [ 198.610461][ T6383] __arm64_sys_mount+0x488/0x5f8 [ 198.611392][ T6383] invoke_syscall+0x98/0x28c [ 198.612292][ T6383] el0_svc_common+0x13c/0x258 [ 198.613117][ T6383] do_el0_svc+0x5c/0x140 [ 198.613935][ T6383] el0_svc+0x78/0x1d0 [ 198.614723][ T6383] el0t_64_sync_handler+0xcc/0xe4 [ 198.615662][ T6383] el0t_64_sync+0x1a0/0x1a4 [ 198.618460][ T6383] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.620677][ T6383] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.856849][ T6386] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.858356][ T6386] CPU: 1 PID: 6386 Comm: syz.1.564 Not tainted syzkaller #0 [ 198.859614][ T6386] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 198.861230][ T6386] Call trace: [ 198.861682][ T6386] dump_backtrace+0x0/0x458 [ 198.862335][ T6386] show_stack+0x2c/0x3c [ 198.863132][ T6386] __dump_stack+0x30/0x40 [ 198.863833][ T6386] dump_stack_lvl+0xf4/0x15c [ 198.864589][ T6386] dump_stack+0x1c/0x5c [ 198.865235][ T6386] sysfs_create_dir_ns+0x244/0x264 [ 198.866067][ T6386] kobject_add_internal+0x594/0xc2c [ 198.866869][ T6386] kobject_init_and_add+0x128/0x194 [ 198.867745][ T6386] gfs2_sys_fs_add+0x208/0x428 [ 198.868554][ T6386] gfs2_fill_super+0xe20/0x1a9c [ 198.869326][ T6386] get_tree_bdev+0x35c/0x54c [ 198.870112][ T6386] gfs2_get_tree+0x58/0x1b8 [ 198.870856][ T6386] vfs_get_tree+0x90/0x278 [ 198.871608][ T6386] do_new_mount+0x228/0x804 [ 198.872359][ T6386] path_mount+0x57c/0xfe8 [ 198.873065][ T6386] __arm64_sys_mount+0x488/0x5f8 [ 198.873877][ T6386] invoke_syscall+0x98/0x28c [ 198.874624][ T6386] el0_svc_common+0x13c/0x258 [ 198.875373][ T6386] do_el0_svc+0x5c/0x140 [ 198.876165][ T6386] el0_svc+0x78/0x1d0 [ 198.876848][ T6386] el0t_64_sync_handler+0xcc/0xe4 [ 198.877732][ T6386] el0t_64_sync+0x1a0/0x1a4 [ 198.880268][ T6386] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.882243][ T6386] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.059079][ T6389] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.060465][ T6389] CPU: 0 PID: 6389 Comm: syz.1.565 Not tainted syzkaller #0 [ 199.061791][ T6389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.063586][ T6389] Call trace: [ 199.064165][ T6389] dump_backtrace+0x0/0x458 [ 199.064857][ T6389] show_stack+0x2c/0x3c [ 199.065501][ T6389] __dump_stack+0x30/0x40 [ 199.066180][ T6389] dump_stack_lvl+0xf4/0x15c [ 199.066934][ T6389] dump_stack+0x1c/0x5c [ 199.067628][ T6389] sysfs_create_dir_ns+0x244/0x264 [ 199.068470][ T6389] kobject_add_internal+0x594/0xc2c [ 199.069322][ T6389] kobject_init_and_add+0x128/0x194 [ 199.070234][ T6389] gfs2_sys_fs_add+0x208/0x428 [ 199.071036][ T6389] gfs2_fill_super+0xe20/0x1a9c [ 199.071902][ T6389] get_tree_bdev+0x35c/0x54c [ 199.072673][ T6389] gfs2_get_tree+0x58/0x1b8 [ 199.073442][ T6389] vfs_get_tree+0x90/0x278 [ 199.074164][ T6389] do_new_mount+0x228/0x804 [ 199.074917][ T6389] path_mount+0x57c/0xfe8 [ 199.075643][ T6389] __arm64_sys_mount+0x488/0x5f8 [ 199.076460][ T6389] invoke_syscall+0x98/0x28c [ 199.077209][ T6389] el0_svc_common+0x13c/0x258 [ 199.078014][ T6389] do_el0_svc+0x5c/0x140 [ 199.078731][ T6389] el0_svc+0x78/0x1d0 [ 199.079439][ T6389] el0t_64_sync_handler+0xcc/0xe4 [ 199.080274][ T6389] el0t_64_sync+0x1a0/0x1a4 [ 199.081737][ T6389] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.084261][ T6389] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.259935][ T6392] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.265509][ T6392] CPU: 1 PID: 6392 Comm: syz.1.566 Not tainted syzkaller #0 [ 199.266761][ T6392] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.268556][ T6392] Call trace: [ 199.269134][ T6392] dump_backtrace+0x0/0x458 [ 199.269944][ T6392] show_stack+0x2c/0x3c [ 199.270701][ T6392] __dump_stack+0x30/0x40 [ 199.271498][ T6392] dump_stack_lvl+0xf4/0x15c [ 199.272331][ T6392] dump_stack+0x1c/0x5c [ 199.273019][ T6392] sysfs_create_dir_ns+0x244/0x264 [ 199.273939][ T6392] kobject_add_internal+0x594/0xc2c [ 199.274842][ T6392] kobject_init_and_add+0x128/0x194 [ 199.275811][ T6392] gfs2_sys_fs_add+0x208/0x428 [ 199.276630][ T6392] gfs2_fill_super+0xe20/0x1a9c [ 199.277469][ T6392] get_tree_bdev+0x35c/0x54c [ 199.278302][ T6392] gfs2_get_tree+0x58/0x1b8 [ 199.279073][ T6392] vfs_get_tree+0x90/0x278 [ 199.279812][ T6392] do_new_mount+0x228/0x804 [ 199.280572][ T6392] path_mount+0x57c/0xfe8 [ 199.281272][ T6392] __arm64_sys_mount+0x488/0x5f8 [ 199.282066][ T6392] invoke_syscall+0x98/0x28c [ 199.282822][ T6392] el0_svc_common+0x13c/0x258 [ 199.283589][ T6392] do_el0_svc+0x5c/0x140 [ 199.284303][ T6392] el0_svc+0x78/0x1d0 [ 199.284968][ T6392] el0t_64_sync_handler+0xcc/0xe4 [ 199.285800][ T6392] el0t_64_sync+0x1a0/0x1a4 [ 199.288697][ T6392] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.290670][ T6392] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.509150][ T6395] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.510472][ T6395] CPU: 0 PID: 6395 Comm: syz.1.567 Not tainted syzkaller #0 [ 199.511631][ T6395] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.513411][ T6395] Call trace: [ 199.513960][ T6395] dump_backtrace+0x0/0x458 [ 199.514708][ T6395] show_stack+0x2c/0x3c [ 199.515357][ T6395] __dump_stack+0x30/0x40 [ 199.516087][ T6395] dump_stack_lvl+0xf4/0x15c [ 199.516822][ T6395] dump_stack+0x1c/0x5c [ 199.517474][ T6395] sysfs_create_dir_ns+0x244/0x264 [ 199.518286][ T6395] kobject_add_internal+0x594/0xc2c [ 199.519172][ T6395] kobject_init_and_add+0x128/0x194 [ 199.520092][ T6395] gfs2_sys_fs_add+0x208/0x428 [ 199.520892][ T6395] gfs2_fill_super+0xe20/0x1a9c [ 199.521783][ T6395] get_tree_bdev+0x35c/0x54c [ 199.522722][ T6395] gfs2_get_tree+0x58/0x1b8 [ 199.523575][ T6395] vfs_get_tree+0x90/0x278 [ 199.524415][ T6395] do_new_mount+0x228/0x804 [ 199.525247][ T6395] path_mount+0x57c/0xfe8 [ 199.526039][ T6395] __arm64_sys_mount+0x488/0x5f8 [ 199.526901][ T6395] invoke_syscall+0x98/0x28c [ 199.527730][ T6395] el0_svc_common+0x13c/0x258 [ 199.528652][ T6395] do_el0_svc+0x5c/0x140 [ 199.529561][ T6395] el0_svc+0x78/0x1d0 [ 199.530381][ T6395] el0t_64_sync_handler+0xcc/0xe4 [ 199.531316][ T6395] el0t_64_sync+0x1a0/0x1a4 [ 199.532395][ T6395] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.534715][ T6395] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.679910][ T6398] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.681426][ T6398] CPU: 1 PID: 6398 Comm: syz.1.568 Not tainted syzkaller #0 [ 199.682577][ T6398] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.684155][ T6398] Call trace: [ 199.684685][ T6398] dump_backtrace+0x0/0x458 [ 199.685385][ T6398] show_stack+0x2c/0x3c [ 199.686033][ T6398] __dump_stack+0x30/0x40 [ 199.686782][ T6398] dump_stack_lvl+0xf4/0x15c [ 199.687492][ T6398] dump_stack+0x1c/0x5c [ 199.688227][ T6398] sysfs_create_dir_ns+0x244/0x264 [ 199.689098][ T6398] kobject_add_internal+0x594/0xc2c [ 199.689952][ T6398] kobject_init_and_add+0x128/0x194 [ 199.690854][ T6398] gfs2_sys_fs_add+0x208/0x428 [ 199.691638][ T6398] gfs2_fill_super+0xe20/0x1a9c [ 199.692485][ T6398] get_tree_bdev+0x35c/0x54c [ 199.693423][ T6398] gfs2_get_tree+0x58/0x1b8 [ 199.694390][ T6398] vfs_get_tree+0x90/0x278 [ 199.695196][ T6398] do_new_mount+0x228/0x804 [ 199.695942][ T6398] path_mount+0x57c/0xfe8 [ 199.696767][ T6398] __arm64_sys_mount+0x488/0x5f8 [ 199.697660][ T6398] invoke_syscall+0x98/0x28c [ 199.698503][ T6398] el0_svc_common+0x13c/0x258 [ 199.699253][ T6398] do_el0_svc+0x5c/0x140 [ 199.699984][ T6398] el0_svc+0x78/0x1d0 [ 199.700603][ T6398] el0t_64_sync_handler+0xcc/0xe4 [ 199.701409][ T6398] el0t_64_sync+0x1a0/0x1a4 [ 199.705483][ T6398] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.707669][ T6398] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.893138][ T6401] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.894369][ T6401] CPU: 1 PID: 6401 Comm: syz.1.569 Not tainted syzkaller #0 [ 199.895625][ T6401] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 199.897258][ T6401] Call trace: [ 199.897829][ T6401] dump_backtrace+0x0/0x458 [ 199.898636][ T6401] show_stack+0x2c/0x3c [ 199.899429][ T6401] __dump_stack+0x30/0x40 [ 199.900229][ T6401] dump_stack_lvl+0xf4/0x15c [ 199.901058][ T6401] dump_stack+0x1c/0x5c [ 199.901774][ T6401] sysfs_create_dir_ns+0x244/0x264 [ 199.902654][ T6401] kobject_add_internal+0x594/0xc2c [ 199.903503][ T6401] kobject_init_and_add+0x128/0x194 [ 199.904378][ T6401] gfs2_sys_fs_add+0x208/0x428 [ 199.905189][ T6401] gfs2_fill_super+0xe20/0x1a9c [ 199.905957][ T6401] get_tree_bdev+0x35c/0x54c [ 199.906752][ T6401] gfs2_get_tree+0x58/0x1b8 [ 199.907552][ T6401] vfs_get_tree+0x90/0x278 [ 199.908307][ T6401] do_new_mount+0x228/0x804 [ 199.909049][ T6401] path_mount+0x57c/0xfe8 [ 199.909753][ T6401] __arm64_sys_mount+0x488/0x5f8 [ 199.910584][ T6401] invoke_syscall+0x98/0x28c [ 199.911374][ T6401] el0_svc_common+0x13c/0x258 [ 199.912190][ T6401] do_el0_svc+0x5c/0x140 [ 199.912884][ T6401] el0_svc+0x78/0x1d0 [ 199.913623][ T6401] el0t_64_sync_handler+0xcc/0xe4 [ 199.914476][ T6401] el0t_64_sync+0x1a0/0x1a4 [ 199.917138][ T6401] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.919538][ T6401] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.093368][ T6404] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.094727][ T6404] CPU: 1 PID: 6404 Comm: syz.1.570 Not tainted syzkaller #0 [ 200.095876][ T6404] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.097334][ T6404] Call trace: [ 200.097866][ T6404] dump_backtrace+0x0/0x458 [ 200.098567][ T6404] show_stack+0x2c/0x3c [ 200.099206][ T6404] __dump_stack+0x30/0x40 [ 200.099904][ T6404] dump_stack_lvl+0xf4/0x15c [ 200.100663][ T6404] dump_stack+0x1c/0x5c [ 200.101310][ T6404] sysfs_create_dir_ns+0x244/0x264 [ 200.102153][ T6404] kobject_add_internal+0x594/0xc2c [ 200.103010][ T6404] kobject_init_and_add+0x128/0x194 [ 200.103938][ T6404] gfs2_sys_fs_add+0x208/0x428 [ 200.104690][ T6404] gfs2_fill_super+0xe20/0x1a9c [ 200.105582][ T6404] get_tree_bdev+0x35c/0x54c [ 200.106381][ T6404] gfs2_get_tree+0x58/0x1b8 [ 200.107142][ T6404] vfs_get_tree+0x90/0x278 [ 200.107934][ T6404] do_new_mount+0x228/0x804 [ 200.108709][ T6404] path_mount+0x57c/0xfe8 [ 200.109415][ T6404] __arm64_sys_mount+0x488/0x5f8 [ 200.110225][ T6404] invoke_syscall+0x98/0x28c [ 200.110986][ T6404] el0_svc_common+0x13c/0x258 [ 200.111783][ T6404] do_el0_svc+0x5c/0x140 [ 200.112537][ T6404] el0_svc+0x78/0x1d0 [ 200.113217][ T6404] el0t_64_sync_handler+0xcc/0xe4 [ 200.114066][ T6404] el0t_64_sync+0x1a0/0x1a4 [ 200.117056][ T6404] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.119362][ T6404] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:20 executed programs: 557 [ 200.256766][ T6407] set_capacity_and_notify: 14 callbacks suppressed [ 200.256776][ T6407] loop1: detected capacity change from 0 to 32768 [ 200.265952][ T6407] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.267192][ T6407] CPU: 0 PID: 6407 Comm: syz.1.571 Not tainted syzkaller #0 [ 200.268437][ T6407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.270180][ T6407] Call trace: [ 200.270723][ T6407] dump_backtrace+0x0/0x458 [ 200.271486][ T6407] show_stack+0x2c/0x3c [ 200.272188][ T6407] __dump_stack+0x30/0x40 [ 200.272941][ T6407] dump_stack_lvl+0xf4/0x15c [ 200.273781][ T6407] dump_stack+0x1c/0x5c [ 200.274522][ T6407] sysfs_create_dir_ns+0x244/0x264 [ 200.275348][ T6407] kobject_add_internal+0x594/0xc2c [ 200.276221][ T6407] kobject_init_and_add+0x128/0x194 [ 200.277108][ T6407] gfs2_sys_fs_add+0x208/0x428 [ 200.277920][ T6407] gfs2_fill_super+0xe20/0x1a9c [ 200.278690][ T6407] get_tree_bdev+0x35c/0x54c [ 200.279463][ T6407] gfs2_get_tree+0x58/0x1b8 [ 200.280221][ T6407] vfs_get_tree+0x90/0x278 [ 200.280990][ T6407] do_new_mount+0x228/0x804 [ 200.281787][ T6407] path_mount+0x57c/0xfe8 [ 200.282527][ T6407] __arm64_sys_mount+0x488/0x5f8 [ 200.283369][ T6407] invoke_syscall+0x98/0x28c [ 200.284196][ T6407] el0_svc_common+0x13c/0x258 [ 200.284977][ T6407] do_el0_svc+0x5c/0x140 [ 200.285697][ T6407] el0_svc+0x78/0x1d0 [ 200.286439][ T6407] el0t_64_sync_handler+0xcc/0xe4 [ 200.287296][ T6407] el0t_64_sync+0x1a0/0x1a4 [ 200.288190][ T6407] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.290094][ T6407] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.428377][ T6410] loop1: detected capacity change from 0 to 32768 [ 200.435998][ T6410] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.437238][ T6410] CPU: 1 PID: 6410 Comm: syz.1.572 Not tainted syzkaller #0 [ 200.438445][ T6410] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.440095][ T6410] Call trace: [ 200.440640][ T6410] dump_backtrace+0x0/0x458 [ 200.441370][ T6410] show_stack+0x2c/0x3c [ 200.442078][ T6410] __dump_stack+0x30/0x40 [ 200.442843][ T6410] dump_stack_lvl+0xf4/0x15c [ 200.443604][ T6410] dump_stack+0x1c/0x5c [ 200.444327][ T6410] sysfs_create_dir_ns+0x244/0x264 [ 200.445196][ T6410] kobject_add_internal+0x594/0xc2c [ 200.446067][ T6410] kobject_init_and_add+0x128/0x194 [ 200.446914][ T6410] gfs2_sys_fs_add+0x208/0x428 [ 200.447724][ T6410] gfs2_fill_super+0xe20/0x1a9c [ 200.448548][ T6410] get_tree_bdev+0x35c/0x54c [ 200.449280][ T6410] gfs2_get_tree+0x58/0x1b8 [ 200.450007][ T6410] vfs_get_tree+0x90/0x278 [ 200.450739][ T6410] do_new_mount+0x228/0x804 [ 200.451509][ T6410] path_mount+0x57c/0xfe8 [ 200.452203][ T6410] __arm64_sys_mount+0x488/0x5f8 [ 200.452937][ T6410] invoke_syscall+0x98/0x28c [ 200.453681][ T6410] el0_svc_common+0x13c/0x258 [ 200.454429][ T6410] do_el0_svc+0x5c/0x140 [ 200.455211][ T6410] el0_svc+0x78/0x1d0 [ 200.455853][ T6410] el0t_64_sync_handler+0xcc/0xe4 [ 200.456705][ T6410] el0t_64_sync+0x1a0/0x1a4 [ 200.459691][ T6410] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.461729][ T6410] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.593849][ T6414] loop1: detected capacity change from 0 to 32768 [ 200.629164][ T6414] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.630412][ T6414] CPU: 1 PID: 6414 Comm: syz.1.573 Not tainted syzkaller #0 [ 200.631602][ T6414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.633156][ T6414] Call trace: [ 200.633655][ T6414] dump_backtrace+0x0/0x458 [ 200.634407][ T6414] show_stack+0x2c/0x3c [ 200.635077][ T6414] __dump_stack+0x30/0x40 [ 200.635764][ T6414] dump_stack_lvl+0xf4/0x15c [ 200.636522][ T6414] dump_stack+0x1c/0x5c [ 200.637234][ T6414] sysfs_create_dir_ns+0x244/0x264 [ 200.638152][ T6414] kobject_add_internal+0x594/0xc2c [ 200.639009][ T6414] kobject_init_and_add+0x128/0x194 [ 200.639894][ T6414] gfs2_sys_fs_add+0x208/0x428 [ 200.640676][ T6414] gfs2_fill_super+0xe20/0x1a9c [ 200.641419][ T6414] get_tree_bdev+0x35c/0x54c [ 200.642135][ T6414] gfs2_get_tree+0x58/0x1b8 [ 200.642849][ T6414] vfs_get_tree+0x90/0x278 [ 200.643641][ T6414] do_new_mount+0x228/0x804 [ 200.644389][ T6414] path_mount+0x57c/0xfe8 [ 200.645141][ T6414] __arm64_sys_mount+0x488/0x5f8 [ 200.645944][ T6414] invoke_syscall+0x98/0x28c [ 200.646747][ T6414] el0_svc_common+0x13c/0x258 [ 200.647574][ T6414] do_el0_svc+0x5c/0x140 [ 200.648311][ T6414] el0_svc+0x78/0x1d0 [ 200.648992][ T6414] el0t_64_sync_handler+0xcc/0xe4 [ 200.649763][ T6414] el0t_64_sync+0x1a0/0x1a4 [ 200.650800][ T6414] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.652982][ T6414] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.845551][ T6417] loop1: detected capacity change from 0 to 32768 [ 200.879050][ T6417] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.880380][ T6417] CPU: 1 PID: 6417 Comm: syz.1.574 Not tainted syzkaller #0 [ 200.881533][ T6417] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 200.883077][ T6417] Call trace: [ 200.883616][ T6417] dump_backtrace+0x0/0x458 [ 200.884266][ T6417] show_stack+0x2c/0x3c [ 200.884880][ T6417] __dump_stack+0x30/0x40 [ 200.885575][ T6417] dump_stack_lvl+0xf4/0x15c [ 200.886297][ T6417] dump_stack+0x1c/0x5c [ 200.886945][ T6417] sysfs_create_dir_ns+0x244/0x264 [ 200.887818][ T6417] kobject_add_internal+0x594/0xc2c [ 200.888651][ T6417] kobject_init_and_add+0x128/0x194 [ 200.889527][ T6417] gfs2_sys_fs_add+0x208/0x428 [ 200.890292][ T6417] gfs2_fill_super+0xe20/0x1a9c [ 200.891090][ T6417] get_tree_bdev+0x35c/0x54c [ 200.891849][ T6417] gfs2_get_tree+0x58/0x1b8 [ 200.892568][ T6417] vfs_get_tree+0x90/0x278 [ 200.893319][ T6417] do_new_mount+0x228/0x804 [ 200.894069][ T6417] path_mount+0x57c/0xfe8 [ 200.894834][ T6417] __arm64_sys_mount+0x488/0x5f8 [ 200.895681][ T6417] invoke_syscall+0x98/0x28c [ 200.896404][ T6417] el0_svc_common+0x13c/0x258 [ 200.897187][ T6417] do_el0_svc+0x5c/0x140 [ 200.897889][ T6417] el0_svc+0x78/0x1d0 [ 200.898547][ T6417] el0t_64_sync_handler+0xcc/0xe4 [ 200.899304][ T6417] el0t_64_sync+0x1a0/0x1a4 [ 200.902808][ T6417] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.905088][ T6417] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.039898][ T6420] loop1: detected capacity change from 0 to 32768 [ 201.079103][ T6420] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.080385][ T6420] CPU: 1 PID: 6420 Comm: syz.1.575 Not tainted syzkaller #0 [ 201.081561][ T6420] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.083175][ T6420] Call trace: [ 201.083700][ T6420] dump_backtrace+0x0/0x458 [ 201.084384][ T6420] show_stack+0x2c/0x3c [ 201.085061][ T6420] __dump_stack+0x30/0x40 [ 201.085750][ T6420] dump_stack_lvl+0xf4/0x15c [ 201.086464][ T6420] dump_stack+0x1c/0x5c [ 201.087120][ T6420] sysfs_create_dir_ns+0x244/0x264 [ 201.088052][ T6420] kobject_add_internal+0x594/0xc2c [ 201.088944][ T6420] kobject_init_and_add+0x128/0x194 [ 201.089833][ T6420] gfs2_sys_fs_add+0x208/0x428 [ 201.090634][ T6420] gfs2_fill_super+0xe20/0x1a9c [ 201.091486][ T6420] get_tree_bdev+0x35c/0x54c [ 201.092241][ T6420] gfs2_get_tree+0x58/0x1b8 [ 201.093013][ T6420] vfs_get_tree+0x90/0x278 [ 201.093756][ T6420] do_new_mount+0x228/0x804 [ 201.094482][ T6420] path_mount+0x57c/0xfe8 [ 201.095191][ T6420] __arm64_sys_mount+0x488/0x5f8 [ 201.096070][ T6420] invoke_syscall+0x98/0x28c [ 201.096853][ T6420] el0_svc_common+0x13c/0x258 [ 201.097643][ T6420] do_el0_svc+0x5c/0x140 [ 201.098332][ T6420] el0_svc+0x78/0x1d0 [ 201.099044][ T6420] el0t_64_sync_handler+0xcc/0xe4 [ 201.099866][ T6420] el0t_64_sync+0x1a0/0x1a4 [ 201.102419][ T6420] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.104494][ T6420] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.245662][ T6423] loop1: detected capacity change from 0 to 32768 [ 201.285430][ T6423] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.286686][ T6423] CPU: 1 PID: 6423 Comm: syz.1.576 Not tainted syzkaller #0 [ 201.287900][ T6423] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.289618][ T6423] Call trace: [ 201.290229][ T6423] dump_backtrace+0x0/0x458 [ 201.290996][ T6423] show_stack+0x2c/0x3c [ 201.291700][ T6423] __dump_stack+0x30/0x40 [ 201.292477][ T6423] dump_stack_lvl+0xf4/0x15c [ 201.293295][ T6423] dump_stack+0x1c/0x5c [ 201.294029][ T6423] sysfs_create_dir_ns+0x244/0x264 [ 201.294889][ T6423] kobject_add_internal+0x594/0xc2c [ 201.295776][ T6423] kobject_init_and_add+0x128/0x194 [ 201.296634][ T6423] gfs2_sys_fs_add+0x208/0x428 [ 201.297455][ T6423] gfs2_fill_super+0xe20/0x1a9c [ 201.298298][ T6423] get_tree_bdev+0x35c/0x54c [ 201.299046][ T6423] gfs2_get_tree+0x58/0x1b8 [ 201.299779][ T6423] vfs_get_tree+0x90/0x278 [ 201.300492][ T6423] do_new_mount+0x228/0x804 [ 201.301246][ T6423] path_mount+0x57c/0xfe8 [ 201.302005][ T6423] __arm64_sys_mount+0x488/0x5f8 [ 201.302871][ T6423] invoke_syscall+0x98/0x28c [ 201.303663][ T6423] el0_svc_common+0x13c/0x258 [ 201.304479][ T6423] do_el0_svc+0x5c/0x140 [ 201.305206][ T6423] el0_svc+0x78/0x1d0 [ 201.305962][ T6423] el0t_64_sync_handler+0xcc/0xe4 [ 201.306810][ T6423] el0t_64_sync+0x1a0/0x1a4 [ 201.308358][ T6423] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.310713][ T6423] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.446454][ T6426] loop1: detected capacity change from 0 to 32768 [ 201.504189][ T6426] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.505493][ T6426] CPU: 1 PID: 6426 Comm: syz.1.577 Not tainted syzkaller #0 [ 201.506675][ T6426] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.508278][ T6426] Call trace: [ 201.508832][ T6426] dump_backtrace+0x0/0x458 [ 201.509608][ T6426] show_stack+0x2c/0x3c [ 201.510296][ T6426] __dump_stack+0x30/0x40 [ 201.511014][ T6426] dump_stack_lvl+0xf4/0x15c [ 201.511737][ T6426] dump_stack+0x1c/0x5c [ 201.512417][ T6426] sysfs_create_dir_ns+0x244/0x264 [ 201.513229][ T6426] kobject_add_internal+0x594/0xc2c [ 201.514268][ T6426] kobject_init_and_add+0x128/0x194 [ 201.515206][ T6426] gfs2_sys_fs_add+0x208/0x428 [ 201.516021][ T6426] gfs2_fill_super+0xe20/0x1a9c [ 201.516817][ T6426] get_tree_bdev+0x35c/0x54c [ 201.517628][ T6426] gfs2_get_tree+0x58/0x1b8 [ 201.518423][ T6426] vfs_get_tree+0x90/0x278 [ 201.519156][ T6426] do_new_mount+0x228/0x804 [ 201.519910][ T6426] path_mount+0x57c/0xfe8 [ 201.520605][ T6426] __arm64_sys_mount+0x488/0x5f8 [ 201.521484][ T6426] invoke_syscall+0x98/0x28c [ 201.522255][ T6426] el0_svc_common+0x13c/0x258 [ 201.523009][ T6426] do_el0_svc+0x5c/0x140 [ 201.523734][ T6426] el0_svc+0x78/0x1d0 [ 201.524387][ T6426] el0t_64_sync_handler+0xcc/0xe4 [ 201.525297][ T6426] el0t_64_sync+0x1a0/0x1a4 [ 201.527793][ T6426] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.529947][ T6426] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.668012][ T6429] loop1: detected capacity change from 0 to 32768 [ 201.675775][ T6429] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.677189][ T6429] CPU: 0 PID: 6429 Comm: syz.1.578 Not tainted syzkaller #0 [ 201.678547][ T6429] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.680255][ T6429] Call trace: [ 201.680804][ T6429] dump_backtrace+0x0/0x458 [ 201.681612][ T6429] show_stack+0x2c/0x3c [ 201.682302][ T6429] __dump_stack+0x30/0x40 [ 201.683020][ T6429] dump_stack_lvl+0xf4/0x15c [ 201.683779][ T6429] dump_stack+0x1c/0x5c [ 201.684610][ T6429] sysfs_create_dir_ns+0x244/0x264 [ 201.685483][ T6429] kobject_add_internal+0x594/0xc2c [ 201.686411][ T6429] kobject_init_and_add+0x128/0x194 [ 201.687380][ T6429] gfs2_sys_fs_add+0x208/0x428 [ 201.688248][ T6429] gfs2_fill_super+0xe20/0x1a9c [ 201.689067][ T6429] get_tree_bdev+0x35c/0x54c [ 201.689896][ T6429] gfs2_get_tree+0x58/0x1b8 [ 201.690647][ T6429] vfs_get_tree+0x90/0x278 [ 201.691399][ T6429] do_new_mount+0x228/0x804 [ 201.692122][ T6429] path_mount+0x57c/0xfe8 [ 201.692836][ T6429] __arm64_sys_mount+0x488/0x5f8 [ 201.693639][ T6429] invoke_syscall+0x98/0x28c [ 201.694455][ T6429] el0_svc_common+0x13c/0x258 [ 201.695267][ T6429] do_el0_svc+0x5c/0x140 [ 201.695948][ T6429] el0_svc+0x78/0x1d0 [ 201.696585][ T6429] el0t_64_sync_handler+0xcc/0xe4 [ 201.697416][ T6429] el0t_64_sync+0x1a0/0x1a4 [ 201.698392][ T6429] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.700401][ T6429] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.836179][ T6432] loop1: detected capacity change from 0 to 32768 [ 201.877508][ T6432] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.881171][ T6432] CPU: 0 PID: 6432 Comm: syz.1.579 Not tainted syzkaller #0 [ 201.882398][ T6432] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 201.884170][ T6432] Call trace: [ 201.884762][ T6432] dump_backtrace+0x0/0x458 [ 201.885397][ T6432] show_stack+0x2c/0x3c [ 201.886052][ T6432] __dump_stack+0x30/0x40 [ 201.886824][ T6432] dump_stack_lvl+0xf4/0x15c [ 201.887580][ T6432] dump_stack+0x1c/0x5c [ 201.888260][ T6432] sysfs_create_dir_ns+0x244/0x264 [ 201.889111][ T6432] kobject_add_internal+0x594/0xc2c [ 201.889950][ T6432] kobject_init_and_add+0x128/0x194 [ 201.890783][ T6432] gfs2_sys_fs_add+0x208/0x428 [ 201.891533][ T6432] gfs2_fill_super+0xe20/0x1a9c [ 201.892340][ T6432] get_tree_bdev+0x35c/0x54c [ 201.893093][ T6432] gfs2_get_tree+0x58/0x1b8 [ 201.893809][ T6432] vfs_get_tree+0x90/0x278 [ 201.894575][ T6432] do_new_mount+0x228/0x804 [ 201.895328][ T6432] path_mount+0x57c/0xfe8 [ 201.896192][ T6432] __arm64_sys_mount+0x488/0x5f8 [ 201.897075][ T6432] invoke_syscall+0x98/0x28c [ 201.897860][ T6432] el0_svc_common+0x13c/0x258 [ 201.898690][ T6432] do_el0_svc+0x5c/0x140 [ 201.899489][ T6432] el0_svc+0x78/0x1d0 [ 201.900176][ T6432] el0t_64_sync_handler+0xcc/0xe4 [ 201.901020][ T6432] el0t_64_sync+0x1a0/0x1a4 [ 201.902088][ T6432] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.904390][ T6432] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.041852][ T6435] loop1: detected capacity change from 0 to 32768 [ 202.089130][ T6435] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.090521][ T6435] CPU: 1 PID: 6435 Comm: syz.1.580 Not tainted syzkaller #0 [ 202.091703][ T6435] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.093306][ T6435] Call trace: [ 202.093848][ T6435] dump_backtrace+0x0/0x458 [ 202.094548][ T6435] show_stack+0x2c/0x3c [ 202.095160][ T6435] __dump_stack+0x30/0x40 [ 202.095791][ T6435] dump_stack_lvl+0xf4/0x15c [ 202.096568][ T6435] dump_stack+0x1c/0x5c [ 202.097268][ T6435] sysfs_create_dir_ns+0x244/0x264 [ 202.098130][ T6435] kobject_add_internal+0x594/0xc2c [ 202.099009][ T6435] kobject_init_and_add+0x128/0x194 [ 202.099852][ T6435] gfs2_sys_fs_add+0x208/0x428 [ 202.100665][ T6435] gfs2_fill_super+0xe20/0x1a9c [ 202.101500][ T6435] get_tree_bdev+0x35c/0x54c [ 202.102279][ T6435] gfs2_get_tree+0x58/0x1b8 [ 202.103035][ T6435] vfs_get_tree+0x90/0x278 [ 202.103839][ T6435] do_new_mount+0x228/0x804 [ 202.104561][ T6435] path_mount+0x57c/0xfe8 [ 202.105294][ T6435] __arm64_sys_mount+0x488/0x5f8 [ 202.106200][ T6435] invoke_syscall+0x98/0x28c [ 202.106974][ T6435] el0_svc_common+0x13c/0x258 [ 202.107778][ T6435] do_el0_svc+0x5c/0x140 [ 202.108496][ T6435] el0_svc+0x78/0x1d0 [ 202.109153][ T6435] el0t_64_sync_handler+0xcc/0xe4 [ 202.109993][ T6435] el0t_64_sync+0x1a0/0x1a4 [ 202.111273][ T6435] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.113472][ T6435] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.346580][ T6439] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.351215][ T6439] CPU: 1 PID: 6439 Comm: syz.1.581 Not tainted syzkaller #0 [ 202.352397][ T6439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.353978][ T6439] Call trace: [ 202.354481][ T6439] dump_backtrace+0x0/0x458 [ 202.355200][ T6439] show_stack+0x2c/0x3c [ 202.355993][ T6439] __dump_stack+0x30/0x40 [ 202.356785][ T6439] dump_stack_lvl+0xf4/0x15c [ 202.357573][ T6439] dump_stack+0x1c/0x5c [ 202.358284][ T6439] sysfs_create_dir_ns+0x244/0x264 [ 202.359146][ T6439] kobject_add_internal+0x594/0xc2c [ 202.360046][ T6439] kobject_init_and_add+0x128/0x194 [ 202.360918][ T6439] gfs2_sys_fs_add+0x208/0x428 [ 202.361682][ T6439] gfs2_fill_super+0xe20/0x1a9c [ 202.362476][ T6439] get_tree_bdev+0x35c/0x54c [ 202.363236][ T6439] gfs2_get_tree+0x58/0x1b8 [ 202.364060][ T6439] vfs_get_tree+0x90/0x278 [ 202.364781][ T6439] do_new_mount+0x228/0x804 [ 202.365585][ T6439] path_mount+0x57c/0xfe8 [ 202.366243][ T6439] __arm64_sys_mount+0x488/0x5f8 [ 202.367076][ T6439] invoke_syscall+0x98/0x28c [ 202.367839][ T6439] el0_svc_common+0x13c/0x258 [ 202.368681][ T6439] do_el0_svc+0x5c/0x140 [ 202.369411][ T6439] el0_svc+0x78/0x1d0 [ 202.370064][ T6439] el0t_64_sync_handler+0xcc/0xe4 [ 202.370928][ T6439] el0t_64_sync+0x1a0/0x1a4 [ 202.374133][ T6439] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.376267][ T6439] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.532131][ T6442] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.533538][ T6442] CPU: 1 PID: 6442 Comm: syz.1.582 Not tainted syzkaller #0 [ 202.534817][ T6442] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.536519][ T6442] Call trace: [ 202.537039][ T6442] dump_backtrace+0x0/0x458 [ 202.537820][ T6442] show_stack+0x2c/0x3c [ 202.538550][ T6442] __dump_stack+0x30/0x40 [ 202.539306][ T6442] dump_stack_lvl+0xf4/0x15c [ 202.540092][ T6442] dump_stack+0x1c/0x5c [ 202.540786][ T6442] sysfs_create_dir_ns+0x244/0x264 [ 202.541616][ T6442] kobject_add_internal+0x594/0xc2c [ 202.542430][ T6442] kobject_init_and_add+0x128/0x194 [ 202.543286][ T6442] gfs2_sys_fs_add+0x208/0x428 [ 202.543999][ T6442] gfs2_fill_super+0xe20/0x1a9c [ 202.544777][ T6442] get_tree_bdev+0x35c/0x54c [ 202.545520][ T6442] gfs2_get_tree+0x58/0x1b8 [ 202.546223][ T6442] vfs_get_tree+0x90/0x278 [ 202.546961][ T6442] do_new_mount+0x228/0x804 [ 202.547686][ T6442] path_mount+0x57c/0xfe8 [ 202.548360][ T6442] __arm64_sys_mount+0x488/0x5f8 [ 202.549179][ T6442] invoke_syscall+0x98/0x28c [ 202.549909][ T6442] el0_svc_common+0x13c/0x258 [ 202.550691][ T6442] do_el0_svc+0x5c/0x140 [ 202.551383][ T6442] el0_svc+0x78/0x1d0 [ 202.552009][ T6442] el0t_64_sync_handler+0xcc/0xe4 [ 202.552779][ T6442] el0t_64_sync+0x1a0/0x1a4 [ 202.554971][ T6442] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.557389][ T6442] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.701272][ T6445] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.702617][ T6445] CPU: 0 PID: 6445 Comm: syz.1.583 Not tainted syzkaller #0 [ 202.703785][ T6445] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.705463][ T6445] Call trace: [ 202.706024][ T6445] dump_backtrace+0x0/0x458 [ 202.706732][ T6445] show_stack+0x2c/0x3c [ 202.707393][ T6445] __dump_stack+0x30/0x40 [ 202.708155][ T6445] dump_stack_lvl+0xf4/0x15c [ 202.708942][ T6445] dump_stack+0x1c/0x5c [ 202.709694][ T6445] sysfs_create_dir_ns+0x244/0x264 [ 202.710610][ T6445] kobject_add_internal+0x594/0xc2c [ 202.711510][ T6445] kobject_init_and_add+0x128/0x194 [ 202.712372][ T6445] gfs2_sys_fs_add+0x208/0x428 [ 202.713202][ T6445] gfs2_fill_super+0xe20/0x1a9c [ 202.714155][ T6445] get_tree_bdev+0x35c/0x54c [ 202.714979][ T6445] gfs2_get_tree+0x58/0x1b8 [ 202.715764][ T6445] vfs_get_tree+0x90/0x278 [ 202.716482][ T6445] do_new_mount+0x228/0x804 [ 202.717236][ T6445] path_mount+0x57c/0xfe8 [ 202.717966][ T6445] __arm64_sys_mount+0x488/0x5f8 [ 202.718862][ T6445] invoke_syscall+0x98/0x28c [ 202.719698][ T6445] el0_svc_common+0x13c/0x258 [ 202.720530][ T6445] do_el0_svc+0x5c/0x140 [ 202.721262][ T6445] el0_svc+0x78/0x1d0 [ 202.721965][ T6445] el0t_64_sync_handler+0xcc/0xe4 [ 202.722792][ T6445] el0t_64_sync+0x1a0/0x1a4 [ 202.725252][ T6445] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.727415][ T6445] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.894431][ T6449] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.895733][ T6449] CPU: 1 PID: 6449 Comm: syz.1.584 Not tainted syzkaller #0 [ 202.897043][ T6449] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 202.898818][ T6449] Call trace: [ 202.899385][ T6449] dump_backtrace+0x0/0x458 [ 202.900108][ T6449] show_stack+0x2c/0x3c [ 202.900874][ T6449] __dump_stack+0x30/0x40 [ 202.901683][ T6449] dump_stack_lvl+0xf4/0x15c [ 202.902384][ T6449] dump_stack+0x1c/0x5c [ 202.903081][ T6449] sysfs_create_dir_ns+0x244/0x264 [ 202.903947][ T6449] kobject_add_internal+0x594/0xc2c [ 202.904767][ T6449] kobject_init_and_add+0x128/0x194 [ 202.905689][ T6449] gfs2_sys_fs_add+0x208/0x428 [ 202.906483][ T6449] gfs2_fill_super+0xe20/0x1a9c [ 202.907384][ T6449] get_tree_bdev+0x35c/0x54c [ 202.908173][ T6449] gfs2_get_tree+0x58/0x1b8 [ 202.908924][ T6449] vfs_get_tree+0x90/0x278 [ 202.909657][ T6449] do_new_mount+0x228/0x804 [ 202.910372][ T6449] path_mount+0x57c/0xfe8 [ 202.911079][ T6449] __arm64_sys_mount+0x488/0x5f8 [ 202.911858][ T6449] invoke_syscall+0x98/0x28c [ 202.912655][ T6449] el0_svc_common+0x13c/0x258 [ 202.913406][ T6449] do_el0_svc+0x5c/0x140 [ 202.914112][ T6449] el0_svc+0x78/0x1d0 [ 202.914773][ T6449] el0t_64_sync_handler+0xcc/0xe4 [ 202.915594][ T6449] el0t_64_sync+0x1a0/0x1a4 [ 202.918000][ T6449] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.920057][ T6449] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.089452][ T6452] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.090757][ T6452] CPU: 0 PID: 6452 Comm: syz.1.585 Not tainted syzkaller #0 [ 203.092175][ T6452] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.093955][ T6452] Call trace: [ 203.094589][ T6452] dump_backtrace+0x0/0x458 [ 203.095275][ T6452] show_stack+0x2c/0x3c [ 203.095941][ T6452] __dump_stack+0x30/0x40 [ 203.096716][ T6452] dump_stack_lvl+0xf4/0x15c [ 203.097586][ T6452] dump_stack+0x1c/0x5c [ 203.098323][ T6452] sysfs_create_dir_ns+0x244/0x264 [ 203.099308][ T6452] kobject_add_internal+0x594/0xc2c [ 203.100235][ T6452] kobject_init_and_add+0x128/0x194 [ 203.101137][ T6452] gfs2_sys_fs_add+0x208/0x428 [ 203.101909][ T6452] gfs2_fill_super+0xe20/0x1a9c [ 203.102721][ T6452] get_tree_bdev+0x35c/0x54c [ 203.103494][ T6452] gfs2_get_tree+0x58/0x1b8 [ 203.104258][ T6452] vfs_get_tree+0x90/0x278 [ 203.104998][ T6452] do_new_mount+0x228/0x804 [ 203.105799][ T6452] path_mount+0x57c/0xfe8 [ 203.106465][ T6452] __arm64_sys_mount+0x488/0x5f8 [ 203.107289][ T6452] invoke_syscall+0x98/0x28c [ 203.108082][ T6452] el0_svc_common+0x13c/0x258 [ 203.108930][ T6452] do_el0_svc+0x5c/0x140 [ 203.109614][ T6452] el0_svc+0x78/0x1d0 [ 203.110313][ T6452] el0t_64_sync_handler+0xcc/0xe4 [ 203.111034][ T6452] el0t_64_sync+0x1a0/0x1a4 [ 203.111895][ T6452] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.113914][ T6452] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.294425][ T6456] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.295836][ T6456] CPU: 0 PID: 6456 Comm: syz.1.586 Not tainted syzkaller #0 [ 203.297107][ T6456] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.298990][ T6456] Call trace: [ 203.299512][ T6456] dump_backtrace+0x0/0x458 [ 203.300307][ T6456] show_stack+0x2c/0x3c [ 203.301014][ T6456] __dump_stack+0x30/0x40 [ 203.301778][ T6456] dump_stack_lvl+0xf4/0x15c [ 203.302510][ T6456] dump_stack+0x1c/0x5c [ 203.303318][ T6456] sysfs_create_dir_ns+0x244/0x264 [ 203.304324][ T6456] kobject_add_internal+0x594/0xc2c [ 203.305325][ T6456] kobject_init_and_add+0x128/0x194 [ 203.306296][ T6456] gfs2_sys_fs_add+0x208/0x428 [ 203.307106][ T6456] gfs2_fill_super+0xe20/0x1a9c [ 203.308058][ T6456] get_tree_bdev+0x35c/0x54c [ 203.308958][ T6456] gfs2_get_tree+0x58/0x1b8 [ 203.309725][ T6456] vfs_get_tree+0x90/0x278 [ 203.310469][ T6456] do_new_mount+0x228/0x804 [ 203.311272][ T6456] path_mount+0x57c/0xfe8 [ 203.311970][ T6456] __arm64_sys_mount+0x488/0x5f8 [ 203.312786][ T6456] invoke_syscall+0x98/0x28c [ 203.313605][ T6456] el0_svc_common+0x13c/0x258 [ 203.314410][ T6456] do_el0_svc+0x5c/0x140 [ 203.315151][ T6456] el0_svc+0x78/0x1d0 [ 203.315877][ T6456] el0t_64_sync_handler+0xcc/0xe4 [ 203.316783][ T6456] el0t_64_sync+0x1a0/0x1a4 [ 203.319961][ T6456] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.322159][ T6456] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.511519][ T6459] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.512877][ T6459] CPU: 0 PID: 6459 Comm: syz.1.587 Not tainted syzkaller #0 [ 203.514077][ T6459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.515647][ T6459] Call trace: [ 203.516155][ T6459] dump_backtrace+0x0/0x458 [ 203.516854][ T6459] show_stack+0x2c/0x3c [ 203.517461][ T6459] __dump_stack+0x30/0x40 [ 203.518130][ T6459] dump_stack_lvl+0xf4/0x15c [ 203.518911][ T6459] dump_stack+0x1c/0x5c [ 203.519585][ T6459] sysfs_create_dir_ns+0x244/0x264 [ 203.520483][ T6459] kobject_add_internal+0x594/0xc2c [ 203.521355][ T6459] kobject_init_and_add+0x128/0x194 [ 203.522220][ T6459] gfs2_sys_fs_add+0x208/0x428 [ 203.523031][ T6459] gfs2_fill_super+0xe20/0x1a9c [ 203.523818][ T6459] get_tree_bdev+0x35c/0x54c [ 203.524590][ T6459] gfs2_get_tree+0x58/0x1b8 [ 203.525344][ T6459] vfs_get_tree+0x90/0x278 [ 203.526051][ T6459] do_new_mount+0x228/0x804 [ 203.526761][ T6459] path_mount+0x57c/0xfe8 [ 203.527477][ T6459] __arm64_sys_mount+0x488/0x5f8 [ 203.528299][ T6459] invoke_syscall+0x98/0x28c [ 203.529073][ T6459] el0_svc_common+0x13c/0x258 [ 203.529893][ T6459] do_el0_svc+0x5c/0x140 [ 203.530557][ T6459] el0_svc+0x78/0x1d0 [ 203.531243][ T6459] el0t_64_sync_handler+0xcc/0xe4 [ 203.532133][ T6459] el0t_64_sync+0x1a0/0x1a4 [ 203.533483][ T6459] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.535476][ T6459] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.680539][ T6463] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.681877][ T6463] CPU: 1 PID: 6463 Comm: syz.1.588 Not tainted syzkaller #0 [ 203.683037][ T6463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.684635][ T6463] Call trace: [ 203.685152][ T6463] dump_backtrace+0x0/0x458 [ 203.685876][ T6463] show_stack+0x2c/0x3c [ 203.686473][ T6463] __dump_stack+0x30/0x40 [ 203.687183][ T6463] dump_stack_lvl+0xf4/0x15c [ 203.687913][ T6463] dump_stack+0x1c/0x5c [ 203.688684][ T6463] sysfs_create_dir_ns+0x244/0x264 [ 203.689602][ T6463] kobject_add_internal+0x594/0xc2c [ 203.690517][ T6463] kobject_init_and_add+0x128/0x194 [ 203.691365][ T6463] gfs2_sys_fs_add+0x208/0x428 [ 203.692183][ T6463] gfs2_fill_super+0xe20/0x1a9c [ 203.692963][ T6463] get_tree_bdev+0x35c/0x54c [ 203.693768][ T6463] gfs2_get_tree+0x58/0x1b8 [ 203.694547][ T6463] vfs_get_tree+0x90/0x278 [ 203.695259][ T6463] do_new_mount+0x228/0x804 [ 203.695997][ T6463] path_mount+0x57c/0xfe8 [ 203.696732][ T6463] __arm64_sys_mount+0x488/0x5f8 [ 203.697575][ T6463] invoke_syscall+0x98/0x28c [ 203.698337][ T6463] el0_svc_common+0x13c/0x258 [ 203.699127][ T6463] do_el0_svc+0x5c/0x140 [ 203.699801][ T6463] el0_svc+0x78/0x1d0 [ 203.700484][ T6463] el0t_64_sync_handler+0xcc/0xe4 [ 203.701331][ T6463] el0t_64_sync+0x1a0/0x1a4 [ 203.705204][ T6463] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.707264][ T6463] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.892811][ T6466] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.894197][ T6466] CPU: 1 PID: 6466 Comm: syz.1.589 Not tainted syzkaller #0 [ 203.895409][ T6466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 203.897200][ T6466] Call trace: [ 203.897771][ T6466] dump_backtrace+0x0/0x458 [ 203.898539][ T6466] show_stack+0x2c/0x3c [ 203.899201][ T6466] __dump_stack+0x30/0x40 [ 203.899883][ T6466] dump_stack_lvl+0xf4/0x15c [ 203.900694][ T6466] dump_stack+0x1c/0x5c [ 203.901429][ T6466] sysfs_create_dir_ns+0x244/0x264 [ 203.902405][ T6466] kobject_add_internal+0x594/0xc2c [ 203.903269][ T6466] kobject_init_and_add+0x128/0x194 [ 203.904198][ T6466] gfs2_sys_fs_add+0x208/0x428 [ 203.904996][ T6466] gfs2_fill_super+0xe20/0x1a9c [ 203.905775][ T6466] get_tree_bdev+0x35c/0x54c [ 203.906545][ T6466] gfs2_get_tree+0x58/0x1b8 [ 203.907368][ T6466] vfs_get_tree+0x90/0x278 [ 203.908129][ T6466] do_new_mount+0x228/0x804 [ 203.908958][ T6466] path_mount+0x57c/0xfe8 [ 203.909663][ T6466] __arm64_sys_mount+0x488/0x5f8 [ 203.910483][ T6466] invoke_syscall+0x98/0x28c [ 203.911246][ T6466] el0_svc_common+0x13c/0x258 [ 203.912028][ T6466] do_el0_svc+0x5c/0x140 [ 203.912831][ T6466] el0_svc+0x78/0x1d0 [ 203.913529][ T6466] el0t_64_sync_handler+0xcc/0xe4 [ 203.914423][ T6466] el0t_64_sync+0x1a0/0x1a4 [ 203.916951][ T6466] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.919462][ T6466] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.102808][ T6469] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.104073][ T6469] CPU: 0 PID: 6469 Comm: syz.1.590 Not tainted syzkaller #0 [ 204.105279][ T6469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.106793][ T6469] Call trace: [ 204.107318][ T6469] dump_backtrace+0x0/0x458 [ 204.108009][ T6469] show_stack+0x2c/0x3c [ 204.108731][ T6469] __dump_stack+0x30/0x40 [ 204.109504][ T6469] dump_stack_lvl+0xf4/0x15c [ 204.110294][ T6469] dump_stack+0x1c/0x5c [ 204.110998][ T6469] sysfs_create_dir_ns+0x244/0x264 [ 204.111900][ T6469] kobject_add_internal+0x594/0xc2c [ 204.112803][ T6469] kobject_init_and_add+0x128/0x194 [ 204.113667][ T6469] gfs2_sys_fs_add+0x208/0x428 [ 204.114450][ T6469] gfs2_fill_super+0xe20/0x1a9c [ 204.115321][ T6469] get_tree_bdev+0x35c/0x54c [ 204.116116][ T6469] gfs2_get_tree+0x58/0x1b8 [ 204.116942][ T6469] vfs_get_tree+0x90/0x278 [ 204.117680][ T6469] do_new_mount+0x228/0x804 [ 204.118455][ T6469] path_mount+0x57c/0xfe8 [ 204.119162][ T6469] __arm64_sys_mount+0x488/0x5f8 [ 204.120056][ T6469] invoke_syscall+0x98/0x28c [ 204.120868][ T6469] el0_svc_common+0x13c/0x258 [ 204.121665][ T6469] do_el0_svc+0x5c/0x140 [ 204.122410][ T6469] el0_svc+0x78/0x1d0 [ 204.123087][ T6469] el0t_64_sync_handler+0xcc/0xe4 [ 204.123944][ T6469] el0t_64_sync+0x1a0/0x1a4 [ 204.125006][ T6469] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.127126][ T6469] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.307312][ T6473] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.309119][ T6473] CPU: 0 PID: 6473 Comm: syz.1.591 Not tainted syzkaller #0 [ 204.310387][ T6473] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.311978][ T6473] Call trace: [ 204.312463][ T6473] dump_backtrace+0x0/0x458 [ 204.313240][ T6473] show_stack+0x2c/0x3c [ 204.313894][ T6473] __dump_stack+0x30/0x40 [ 204.314538][ T6473] dump_stack_lvl+0xf4/0x15c [ 204.315240][ T6473] dump_stack+0x1c/0x5c [ 204.315901][ T6473] sysfs_create_dir_ns+0x244/0x264 [ 204.316760][ T6473] kobject_add_internal+0x594/0xc2c [ 204.317561][ T6473] kobject_init_and_add+0x128/0x194 [ 204.318408][ T6473] gfs2_sys_fs_add+0x208/0x428 [ 204.319230][ T6473] gfs2_fill_super+0xe20/0x1a9c [ 204.320060][ T6473] get_tree_bdev+0x35c/0x54c [ 204.320843][ T6473] gfs2_get_tree+0x58/0x1b8 [ 204.321605][ T6473] vfs_get_tree+0x90/0x278 [ 204.322356][ T6473] do_new_mount+0x228/0x804 [ 204.323090][ T6473] path_mount+0x57c/0xfe8 [ 204.323823][ T6473] __arm64_sys_mount+0x488/0x5f8 [ 204.324688][ T6473] invoke_syscall+0x98/0x28c [ 204.325477][ T6473] el0_svc_common+0x13c/0x258 [ 204.326316][ T6473] do_el0_svc+0x5c/0x140 [ 204.327063][ T6473] el0_svc+0x78/0x1d0 [ 204.327722][ T6473] el0t_64_sync_handler+0xcc/0xe4 [ 204.328555][ T6473] el0t_64_sync+0x1a0/0x1a4 [ 204.330980][ T6473] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.333292][ T6473] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.589219][ T6476] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.590562][ T6476] CPU: 1 PID: 6476 Comm: syz.1.592 Not tainted syzkaller #0 [ 204.591803][ T6476] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.593470][ T6476] Call trace: [ 204.594034][ T6476] dump_backtrace+0x0/0x458 [ 204.594879][ T6476] show_stack+0x2c/0x3c [ 204.595591][ T6476] __dump_stack+0x30/0x40 [ 204.596325][ T6476] dump_stack_lvl+0xf4/0x15c [ 204.597068][ T6476] dump_stack+0x1c/0x5c [ 204.597766][ T6476] sysfs_create_dir_ns+0x244/0x264 [ 204.598742][ T6476] kobject_add_internal+0x594/0xc2c [ 204.599676][ T6476] kobject_init_and_add+0x128/0x194 [ 204.600540][ T6476] gfs2_sys_fs_add+0x208/0x428 [ 204.601330][ T6476] gfs2_fill_super+0xe20/0x1a9c [ 204.602124][ T6476] get_tree_bdev+0x35c/0x54c [ 204.602920][ T6476] gfs2_get_tree+0x58/0x1b8 [ 204.603677][ T6476] vfs_get_tree+0x90/0x278 [ 204.604420][ T6476] do_new_mount+0x228/0x804 [ 204.605170][ T6476] path_mount+0x57c/0xfe8 [ 204.605921][ T6476] __arm64_sys_mount+0x488/0x5f8 [ 204.606757][ T6476] invoke_syscall+0x98/0x28c [ 204.607558][ T6476] el0_svc_common+0x13c/0x258 [ 204.608382][ T6476] do_el0_svc+0x5c/0x140 [ 204.609070][ T6476] el0_svc+0x78/0x1d0 [ 204.609754][ T6476] el0t_64_sync_handler+0xcc/0xe4 [ 204.610631][ T6476] el0t_64_sync+0x1a0/0x1a4 [ 204.611870][ T6476] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.614663][ T6476] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.795177][ T6479] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.796518][ T6479] CPU: 0 PID: 6479 Comm: syz.1.593 Not tainted syzkaller #0 [ 204.797728][ T6479] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 204.799478][ T6479] Call trace: [ 204.800048][ T6479] dump_backtrace+0x0/0x458 [ 204.800829][ T6479] show_stack+0x2c/0x3c [ 204.801582][ T6479] __dump_stack+0x30/0x40 [ 204.802450][ T6479] dump_stack_lvl+0xf4/0x15c [ 204.803389][ T6479] dump_stack+0x1c/0x5c [ 204.804178][ T6479] sysfs_create_dir_ns+0x244/0x264 [ 204.805110][ T6479] kobject_add_internal+0x594/0xc2c [ 204.806051][ T6479] kobject_init_and_add+0x128/0x194 [ 204.806916][ T6479] gfs2_sys_fs_add+0x208/0x428 [ 204.807760][ T6479] gfs2_fill_super+0xe20/0x1a9c [ 204.808613][ T6479] get_tree_bdev+0x35c/0x54c [ 204.809375][ T6479] gfs2_get_tree+0x58/0x1b8 [ 204.810180][ T6479] vfs_get_tree+0x90/0x278 [ 204.810979][ T6479] do_new_mount+0x228/0x804 [ 204.811749][ T6479] path_mount+0x57c/0xfe8 [ 204.812552][ T6479] __arm64_sys_mount+0x488/0x5f8 [ 204.813431][ T6479] invoke_syscall+0x98/0x28c [ 204.814307][ T6479] el0_svc_common+0x13c/0x258 [ 204.815107][ T6479] do_el0_svc+0x5c/0x140 [ 204.815814][ T6479] el0_svc+0x78/0x1d0 [ 204.816513][ T6479] el0t_64_sync_handler+0xcc/0xe4 [ 204.817306][ T6479] el0t_64_sync+0x1a0/0x1a4 [ 204.818777][ T4257] Bluetooth: hci1: command 0x0406 tx timeout [ 204.821060][ T6479] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.823325][ T6479] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.047891][ T6482] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.049244][ T6482] CPU: 1 PID: 6482 Comm: syz.1.594 Not tainted syzkaller #0 [ 205.050439][ T6482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.052247][ T6482] Call trace: [ 205.052864][ T6482] dump_backtrace+0x0/0x458 [ 205.053589][ T6482] show_stack+0x2c/0x3c [ 205.054261][ T6482] __dump_stack+0x30/0x40 [ 205.054922][ T6482] dump_stack_lvl+0xf4/0x15c [ 205.055666][ T6482] dump_stack+0x1c/0x5c [ 205.056351][ T6482] sysfs_create_dir_ns+0x244/0x264 [ 205.057172][ T6482] kobject_add_internal+0x594/0xc2c [ 205.058027][ T6482] kobject_init_and_add+0x128/0x194 [ 205.058998][ T6482] gfs2_sys_fs_add+0x208/0x428 [ 205.059854][ T6482] gfs2_fill_super+0xe20/0x1a9c [ 205.060710][ T6482] get_tree_bdev+0x35c/0x54c [ 205.061514][ T6482] gfs2_get_tree+0x58/0x1b8 [ 205.062295][ T6482] vfs_get_tree+0x90/0x278 [ 205.063050][ T6482] do_new_mount+0x228/0x804 [ 205.063833][ T6482] path_mount+0x57c/0xfe8 [ 205.064516][ T6482] __arm64_sys_mount+0x488/0x5f8 [ 205.065327][ T6482] invoke_syscall+0x98/0x28c [ 205.066081][ T6482] el0_svc_common+0x13c/0x258 [ 205.066900][ T6482] do_el0_svc+0x5c/0x140 [ 205.067622][ T6482] el0_svc+0x78/0x1d0 [ 205.068302][ T6482] el0t_64_sync_handler+0xcc/0xe4 [ 205.069179][ T6482] el0t_64_sync+0x1a0/0x1a4 [ 205.071796][ T6482] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.073846][ T6482] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.275136][ T6485] set_capacity_and_notify: 14 callbacks suppressed [ 205.275146][ T6485] loop1: detected capacity change from 0 to 32768 [ 205.314481][ T6485] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.315843][ T6485] CPU: 1 PID: 6485 Comm: syz.1.595 Not tainted syzkaller #0 [ 205.317045][ T6485] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.318694][ T6485] Call trace: [ 205.319275][ T6485] dump_backtrace+0x0/0x458 [ 205.320059][ T6485] show_stack+0x2c/0x3c [ 205.320743][ T6485] __dump_stack+0x30/0x40 [ 205.321453][ T6485] dump_stack_lvl+0xf4/0x15c [ 205.322205][ T6485] dump_stack+0x1c/0x5c [ 205.322974][ T6485] sysfs_create_dir_ns+0x244/0x264 [ 205.323805][ T6485] kobject_add_internal+0x594/0xc2c [ 205.324743][ T6485] kobject_init_and_add+0x128/0x194 [ 205.325597][ T6485] gfs2_sys_fs_add+0x208/0x428 [ 205.326415][ T6485] gfs2_fill_super+0xe20/0x1a9c [ 205.327179][ T6485] get_tree_bdev+0x35c/0x54c [ 205.327919][ T6485] gfs2_get_tree+0x58/0x1b8 [ 205.328703][ T6485] vfs_get_tree+0x90/0x278 [ 205.329436][ T6485] do_new_mount+0x228/0x804 [ 205.330241][ T6485] path_mount+0x57c/0xfe8 [ 205.330910][ T6485] __arm64_sys_mount+0x488/0x5f8 [ 205.331726][ T6485] invoke_syscall+0x98/0x28c [ 205.332499][ T6485] el0_svc_common+0x13c/0x258 [ 205.333297][ T6485] do_el0_svc+0x5c/0x140 [ 205.334037][ T6485] el0_svc+0x78/0x1d0 [ 205.334659][ T6485] el0t_64_sync_handler+0xcc/0xe4 [ 205.335503][ T6485] el0t_64_sync+0x1a0/0x1a4 [ 205.336541][ T6485] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.338793][ T6485] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:25 executed programs: 582 [ 205.475875][ T6488] loop1: detected capacity change from 0 to 32768 [ 205.513983][ T6488] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.515278][ T6488] CPU: 1 PID: 6488 Comm: syz.1.596 Not tainted syzkaller #0 [ 205.516415][ T6488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.517954][ T6488] Call trace: [ 205.518498][ T6488] dump_backtrace+0x0/0x458 [ 205.519270][ T6488] show_stack+0x2c/0x3c [ 205.519957][ T6488] __dump_stack+0x30/0x40 [ 205.520714][ T6488] dump_stack_lvl+0xf4/0x15c [ 205.521543][ T6488] dump_stack+0x1c/0x5c [ 205.522258][ T6488] sysfs_create_dir_ns+0x244/0x264 [ 205.523147][ T6488] kobject_add_internal+0x594/0xc2c [ 205.524078][ T6488] kobject_init_and_add+0x128/0x194 [ 205.524940][ T6488] gfs2_sys_fs_add+0x208/0x428 [ 205.525723][ T6488] gfs2_fill_super+0xe20/0x1a9c [ 205.526530][ T6488] get_tree_bdev+0x35c/0x54c [ 205.527267][ T6488] gfs2_get_tree+0x58/0x1b8 [ 205.528047][ T6488] vfs_get_tree+0x90/0x278 [ 205.528792][ T6488] do_new_mount+0x228/0x804 [ 205.529552][ T6488] path_mount+0x57c/0xfe8 [ 205.530267][ T6488] __arm64_sys_mount+0x488/0x5f8 [ 205.531056][ T6488] invoke_syscall+0x98/0x28c [ 205.531796][ T6488] el0_svc_common+0x13c/0x258 [ 205.532600][ T6488] do_el0_svc+0x5c/0x140 [ 205.533292][ T6488] el0_svc+0x78/0x1d0 [ 205.533959][ T6488] el0t_64_sync_handler+0xcc/0xe4 [ 205.534752][ T6488] el0t_64_sync+0x1a0/0x1a4 [ 205.536270][ T6488] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.538707][ T6488] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.680666][ T6491] loop1: detected capacity change from 0 to 32768 [ 205.689353][ T6491] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.690815][ T6491] CPU: 0 PID: 6491 Comm: syz.1.597 Not tainted syzkaller #0 [ 205.692107][ T6491] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.693801][ T6491] Call trace: [ 205.694353][ T6491] dump_backtrace+0x0/0x458 [ 205.695091][ T6491] show_stack+0x2c/0x3c [ 205.695790][ T6491] __dump_stack+0x30/0x40 [ 205.696581][ T6491] dump_stack_lvl+0xf4/0x15c [ 205.697319][ T6491] dump_stack+0x1c/0x5c [ 205.698037][ T6491] sysfs_create_dir_ns+0x244/0x264 [ 205.698902][ T6491] kobject_add_internal+0x594/0xc2c [ 205.699874][ T6491] kobject_init_and_add+0x128/0x194 [ 205.700794][ T6491] gfs2_sys_fs_add+0x208/0x428 [ 205.701652][ T6491] gfs2_fill_super+0xe20/0x1a9c [ 205.702499][ T6491] get_tree_bdev+0x35c/0x54c [ 205.703303][ T6491] gfs2_get_tree+0x58/0x1b8 [ 205.704077][ T6491] vfs_get_tree+0x90/0x278 [ 205.704874][ T6491] do_new_mount+0x228/0x804 [ 205.705687][ T6491] path_mount+0x57c/0xfe8 [ 205.706409][ T6491] __arm64_sys_mount+0x488/0x5f8 [ 205.707179][ T6491] invoke_syscall+0x98/0x28c [ 205.707929][ T6491] el0_svc_common+0x13c/0x258 [ 205.708739][ T6491] do_el0_svc+0x5c/0x140 [ 205.709504][ T6491] el0_svc+0x78/0x1d0 [ 205.710220][ T6491] el0t_64_sync_handler+0xcc/0xe4 [ 205.711059][ T6491] el0t_64_sync+0x1a0/0x1a4 [ 205.713281][ T6491] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.715513][ T6491] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.851100][ T6494] loop1: detected capacity change from 0 to 32768 [ 205.889249][ T6494] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.890791][ T6494] CPU: 0 PID: 6494 Comm: syz.1.598 Not tainted syzkaller #0 [ 205.892100][ T6494] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 205.893543][ T6494] Call trace: [ 205.894058][ T6494] dump_backtrace+0x0/0x458 [ 205.894774][ T6494] show_stack+0x2c/0x3c [ 205.895410][ T6494] __dump_stack+0x30/0x40 [ 205.896065][ T6494] dump_stack_lvl+0xf4/0x15c [ 205.896847][ T6494] dump_stack+0x1c/0x5c [ 205.897588][ T6494] sysfs_create_dir_ns+0x244/0x264 [ 205.898478][ T6494] kobject_add_internal+0x594/0xc2c [ 205.899443][ T6494] kobject_init_and_add+0x128/0x194 [ 205.900348][ T6494] gfs2_sys_fs_add+0x208/0x428 [ 205.901150][ T6494] gfs2_fill_super+0xe20/0x1a9c [ 205.902009][ T6494] get_tree_bdev+0x35c/0x54c [ 205.902730][ T6494] gfs2_get_tree+0x58/0x1b8 [ 205.903476][ T6494] vfs_get_tree+0x90/0x278 [ 205.904209][ T6494] do_new_mount+0x228/0x804 [ 205.904975][ T6494] path_mount+0x57c/0xfe8 [ 205.905738][ T6494] __arm64_sys_mount+0x488/0x5f8 [ 205.906632][ T6494] invoke_syscall+0x98/0x28c [ 205.907445][ T6494] el0_svc_common+0x13c/0x258 [ 205.908295][ T6494] do_el0_svc+0x5c/0x140 [ 205.909091][ T6494] el0_svc+0x78/0x1d0 [ 205.909811][ T6494] el0t_64_sync_handler+0xcc/0xe4 [ 205.910611][ T6494] el0t_64_sync+0x1a0/0x1a4 [ 205.912978][ T6494] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.915234][ T6494] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.049803][ T6497] loop1: detected capacity change from 0 to 32768 [ 206.150840][ T6497] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.152181][ T6497] CPU: 1 PID: 6497 Comm: syz.1.599 Not tainted syzkaller #0 [ 206.153301][ T6497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.154824][ T6497] Call trace: [ 206.155315][ T6497] dump_backtrace+0x0/0x458 [ 206.155998][ T6497] show_stack+0x2c/0x3c [ 206.156559][ T6497] __dump_stack+0x30/0x40 [ 206.157259][ T6497] dump_stack_lvl+0xf4/0x15c [ 206.157993][ T6497] dump_stack+0x1c/0x5c [ 206.158657][ T6497] sysfs_create_dir_ns+0x244/0x264 [ 206.159484][ T6497] kobject_add_internal+0x594/0xc2c [ 206.160359][ T6497] kobject_init_and_add+0x128/0x194 [ 206.161170][ T6497] gfs2_sys_fs_add+0x208/0x428 [ 206.161915][ T6497] gfs2_fill_super+0xe20/0x1a9c [ 206.162673][ T6497] get_tree_bdev+0x35c/0x54c [ 206.163491][ T6497] gfs2_get_tree+0x58/0x1b8 [ 206.164247][ T6497] vfs_get_tree+0x90/0x278 [ 206.165015][ T6497] do_new_mount+0x228/0x804 [ 206.165795][ T6497] path_mount+0x57c/0xfe8 [ 206.166581][ T6497] __arm64_sys_mount+0x488/0x5f8 [ 206.167406][ T6497] invoke_syscall+0x98/0x28c [ 206.168181][ T6497] el0_svc_common+0x13c/0x258 [ 206.168984][ T6497] do_el0_svc+0x5c/0x140 [ 206.169673][ T6497] el0_svc+0x78/0x1d0 [ 206.170322][ T6497] el0t_64_sync_handler+0xcc/0xe4 [ 206.171137][ T6497] el0t_64_sync+0x1a0/0x1a4 [ 206.172388][ T6497] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.174286][ T6497] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.313789][ T6500] loop1: detected capacity change from 0 to 32768 [ 206.320425][ T6500] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.321672][ T6500] CPU: 1 PID: 6500 Comm: syz.1.600 Not tainted syzkaller #0 [ 206.322886][ T6500] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.324472][ T6500] Call trace: [ 206.324985][ T6500] dump_backtrace+0x0/0x458 [ 206.325778][ T6500] show_stack+0x2c/0x3c [ 206.326511][ T6500] __dump_stack+0x30/0x40 [ 206.327254][ T6500] dump_stack_lvl+0xf4/0x15c [ 206.328034][ T6500] dump_stack+0x1c/0x5c [ 206.328755][ T6500] sysfs_create_dir_ns+0x244/0x264 [ 206.329723][ T6500] kobject_add_internal+0x594/0xc2c [ 206.330609][ T6500] kobject_init_and_add+0x128/0x194 [ 206.331504][ T6500] gfs2_sys_fs_add+0x208/0x428 [ 206.332283][ T6500] gfs2_fill_super+0xe20/0x1a9c [ 206.333107][ T6500] get_tree_bdev+0x35c/0x54c [ 206.333884][ T6500] gfs2_get_tree+0x58/0x1b8 [ 206.334676][ T6500] vfs_get_tree+0x90/0x278 [ 206.335423][ T6500] do_new_mount+0x228/0x804 [ 206.336138][ T6500] path_mount+0x57c/0xfe8 [ 206.336924][ T6500] __arm64_sys_mount+0x488/0x5f8 [ 206.337761][ T6500] invoke_syscall+0x98/0x28c [ 206.338544][ T6500] el0_svc_common+0x13c/0x258 [ 206.339335][ T6500] do_el0_svc+0x5c/0x140 [ 206.340073][ T6500] el0_svc+0x78/0x1d0 [ 206.340783][ T6500] el0t_64_sync_handler+0xcc/0xe4 [ 206.341669][ T6500] el0t_64_sync+0x1a0/0x1a4 [ 206.346012][ T6500] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.348468][ T6500] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.484627][ T6503] loop1: detected capacity change from 0 to 32768 [ 206.577034][ T6503] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.578459][ T6503] CPU: 1 PID: 6503 Comm: syz.1.601 Not tainted syzkaller #0 [ 206.579657][ T6503] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.581244][ T6503] Call trace: [ 206.581769][ T6503] dump_backtrace+0x0/0x458 [ 206.582512][ T6503] show_stack+0x2c/0x3c [ 206.583151][ T6503] __dump_stack+0x30/0x40 [ 206.583856][ T6503] dump_stack_lvl+0xf4/0x15c [ 206.584591][ T6503] dump_stack+0x1c/0x5c [ 206.585300][ T6503] sysfs_create_dir_ns+0x244/0x264 [ 206.586174][ T6503] kobject_add_internal+0x594/0xc2c [ 206.587056][ T6503] kobject_init_and_add+0x128/0x194 [ 206.587916][ T6503] gfs2_sys_fs_add+0x208/0x428 [ 206.588698][ T6503] gfs2_fill_super+0xe20/0x1a9c [ 206.589528][ T6503] get_tree_bdev+0x35c/0x54c [ 206.590276][ T6503] gfs2_get_tree+0x58/0x1b8 [ 206.591042][ T6503] vfs_get_tree+0x90/0x278 [ 206.591800][ T6503] do_new_mount+0x228/0x804 [ 206.592596][ T6503] path_mount+0x57c/0xfe8 [ 206.593369][ T6503] __arm64_sys_mount+0x488/0x5f8 [ 206.594193][ T6503] invoke_syscall+0x98/0x28c [ 206.594944][ T6503] el0_svc_common+0x13c/0x258 [ 206.595689][ T6503] do_el0_svc+0x5c/0x140 [ 206.596393][ T6503] el0_svc+0x78/0x1d0 [ 206.597048][ T6503] el0t_64_sync_handler+0xcc/0xe4 [ 206.597892][ T6503] el0t_64_sync+0x1a0/0x1a4 [ 206.600265][ T6503] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.602322][ T6503] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.793423][ T6506] loop1: detected capacity change from 0 to 32768 [ 206.829752][ T6506] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.831104][ T6506] CPU: 1 PID: 6506 Comm: syz.1.602 Not tainted syzkaller #0 [ 206.832299][ T6506] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 206.833867][ T6506] Call trace: [ 206.834410][ T6506] dump_backtrace+0x0/0x458 [ 206.835101][ T6506] show_stack+0x2c/0x3c [ 206.835839][ T6506] __dump_stack+0x30/0x40 [ 206.836521][ T6506] dump_stack_lvl+0xf4/0x15c [ 206.837266][ T6506] dump_stack+0x1c/0x5c [ 206.837956][ T6506] sysfs_create_dir_ns+0x244/0x264 [ 206.838791][ T6506] kobject_add_internal+0x594/0xc2c [ 206.839705][ T6506] kobject_init_and_add+0x128/0x194 [ 206.840524][ T6506] gfs2_sys_fs_add+0x208/0x428 [ 206.841349][ T6506] gfs2_fill_super+0xe20/0x1a9c [ 206.842201][ T6506] get_tree_bdev+0x35c/0x54c [ 206.843000][ T6506] gfs2_get_tree+0x58/0x1b8 [ 206.843794][ T6506] vfs_get_tree+0x90/0x278 [ 206.844584][ T6506] do_new_mount+0x228/0x804 [ 206.845431][ T6506] path_mount+0x57c/0xfe8 [ 206.846174][ T6506] __arm64_sys_mount+0x488/0x5f8 [ 206.846995][ T6506] invoke_syscall+0x98/0x28c [ 206.847722][ T6506] el0_svc_common+0x13c/0x258 [ 206.848505][ T6506] do_el0_svc+0x5c/0x140 [ 206.849164][ T6506] el0_svc+0x78/0x1d0 [ 206.849874][ T6506] el0t_64_sync_handler+0xcc/0xe4 [ 206.850698][ T6506] el0t_64_sync+0x1a0/0x1a4 [ 206.853028][ T6506] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.855322][ T6506] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.991051][ T6509] loop1: detected capacity change from 0 to 32768 [ 207.060843][ T6509] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.062116][ T6509] CPU: 0 PID: 6509 Comm: syz.1.603 Not tainted syzkaller #0 [ 207.063337][ T6509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 207.064995][ T6509] Call trace: [ 207.065489][ T6509] dump_backtrace+0x0/0x458 [ 207.066206][ T6509] show_stack+0x2c/0x3c [ 207.066907][ T6509] __dump_stack+0x30/0x40 [ 207.067584][ T6509] dump_stack_lvl+0xf4/0x15c [ 207.068296][ T6509] dump_stack+0x1c/0x5c [ 207.069051][ T6509] sysfs_create_dir_ns+0x244/0x264 [ 207.069953][ T6509] kobject_add_internal+0x594/0xc2c [ 207.070841][ T6509] kobject_init_and_add+0x128/0x194 [ 207.071709][ T6509] gfs2_sys_fs_add+0x208/0x428 [ 207.072493][ T6509] gfs2_fill_super+0xe20/0x1a9c [ 207.073338][ T6509] get_tree_bdev+0x35c/0x54c [ 207.074193][ T6509] gfs2_get_tree+0x58/0x1b8 [ 207.074939][ T6509] vfs_get_tree+0x90/0x278 [ 207.075683][ T6509] do_new_mount+0x228/0x804 [ 207.076491][ T6509] path_mount+0x57c/0xfe8 [ 207.077261][ T6509] __arm64_sys_mount+0x488/0x5f8 [ 207.078161][ T6509] invoke_syscall+0x98/0x28c [ 207.079011][ T6509] el0_svc_common+0x13c/0x258 [ 207.079800][ T6509] do_el0_svc+0x5c/0x140 [ 207.080476][ T6509] el0_svc+0x78/0x1d0 [ 207.081189][ T6509] el0t_64_sync_handler+0xcc/0xe4 [ 207.082061][ T6509] el0t_64_sync+0x1a0/0x1a4 [ 207.084556][ T6509] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.086795][ T6509] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.223693][ T6512] loop1: detected capacity change from 0 to 32768 [ 207.232188][ T6512] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.233490][ T6512] CPU: 1 PID: 6512 Comm: syz.1.604 Not tainted syzkaller #0 [ 207.234629][ T6512] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 207.236237][ T6512] Call trace: [ 207.236734][ T6512] dump_backtrace+0x0/0x458 [ 207.237460][ T6512] show_stack+0x2c/0x3c [ 207.238154][ T6512] __dump_stack+0x30/0x40 [ 207.238894][ T6512] dump_stack_lvl+0xf4/0x15c [ 207.239811][ T6512] dump_stack+0x1c/0x5c [ 207.240651][ T6512] sysfs_create_dir_ns+0x244/0x264 [ 207.241529][ T6512] kobject_add_internal+0x594/0xc2c [ 207.242415][ T6512] kobject_init_and_add+0x128/0x194 [ 207.243350][ T6512] gfs2_sys_fs_add+0x208/0x428 [ 207.244189][ T6512] gfs2_fill_super+0xe20/0x1a9c [ 207.244985][ T6512] get_tree_bdev+0x35c/0x54c [ 207.245779][ T6512] gfs2_get_tree+0x58/0x1b8 [ 207.246550][ T6512] vfs_get_tree+0x90/0x278 [ 207.247284][ T6512] do_new_mount+0x228/0x804 [ 207.248047][ T6512] path_mount+0x57c/0xfe8 [ 207.248785][ T6512] __arm64_sys_mount+0x488/0x5f8 [ 207.249650][ T6512] invoke_syscall+0x98/0x28c [ 207.250468][ T6512] el0_svc_common+0x13c/0x258 [ 207.251276][ T6512] do_el0_svc+0x5c/0x140 [ 207.252005][ T6512] el0_svc+0x78/0x1d0 [ 207.252695][ T6512] el0t_64_sync_handler+0xcc/0xe4 [ 207.253553][ T6512] el0t_64_sync+0x1a0/0x1a4 [ 207.254652][ T6512] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.256859][ T6512] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.474822][ T6515] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.476135][ T6515] CPU: 1 PID: 6515 Comm: syz.1.605 Not tainted syzkaller #0 [ 207.477377][ T6515] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 207.479049][ T6515] Call trace: [ 207.479597][ T6515] dump_backtrace+0x0/0x458 [ 207.480348][ T6515] show_stack+0x2c/0x3c [ 207.481011][ T6515] __dump_stack+0x30/0x40 [ 207.481758][ T6515] dump_stack_lvl+0xf4/0x15c [ 207.482536][ T6515] dump_stack+0x1c/0x5c [ 207.483225][ T6515] sysfs_create_dir_ns+0x244/0x264 [ 207.484113][ T6515] kobject_add_internal+0x594/0xc2c [ 207.484990][ T6515] kobject_init_and_add+0x128/0x194 [ 207.485973][ T6515] gfs2_sys_fs_add+0x208/0x428 [ 207.486808][ T6515] gfs2_fill_super+0xe20/0x1a9c [ 207.487631][ T6515] get_tree_bdev+0x35c/0x54c [ 207.488436][ T6515] gfs2_get_tree+0x58/0x1b8 [ 207.489287][ T6515] vfs_get_tree+0x90/0x278 [ 207.490066][ T6515] do_new_mount+0x228/0x804 [ 207.490807][ T6515] path_mount+0x57c/0xfe8 [ 207.491526][ T6515] __arm64_sys_mount+0x488/0x5f8 [ 207.492384][ T6515] invoke_syscall+0x98/0x28c [ 207.493148][ T6515] el0_svc_common+0x13c/0x258 [ 207.493927][ T6515] do_el0_svc+0x5c/0x140 [ 207.494645][ T6515] el0_svc+0x78/0x1d0 [ 207.495331][ T6515] el0t_64_sync_handler+0xcc/0xe4 [ 207.496141][ T6515] el0t_64_sync+0x1a0/0x1a4 [ 207.498146][ T6515] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.500355][ T6515] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.643934][ T6518] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.645165][ T6518] CPU: 1 PID: 6518 Comm: syz.1.606 Not tainted syzkaller #0 [ 207.646350][ T6518] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 207.648030][ T6518] Call trace: [ 207.648621][ T6518] dump_backtrace+0x0/0x458 [ 207.649322][ T6518] show_stack+0x2c/0x3c [ 207.649971][ T6518] __dump_stack+0x30/0x40 [ 207.650725][ T6518] dump_stack_lvl+0xf4/0x15c [ 207.651472][ T6518] dump_stack+0x1c/0x5c [ 207.652177][ T6518] sysfs_create_dir_ns+0x244/0x264 [ 207.653004][ T6518] kobject_add_internal+0x594/0xc2c [ 207.653887][ T6518] kobject_init_and_add+0x128/0x194 [ 207.654729][ T6518] gfs2_sys_fs_add+0x208/0x428 [ 207.655555][ T6518] gfs2_fill_super+0xe20/0x1a9c [ 207.656353][ T6518] get_tree_bdev+0x35c/0x54c [ 207.657138][ T6518] gfs2_get_tree+0x58/0x1b8 [ 207.657875][ T6518] vfs_get_tree+0x90/0x278 [ 207.658622][ T6518] do_new_mount+0x228/0x804 [ 207.659392][ T6518] path_mount+0x57c/0xfe8 [ 207.660136][ T6518] __arm64_sys_mount+0x488/0x5f8 [ 207.660926][ T6518] invoke_syscall+0x98/0x28c [ 207.661686][ T6518] el0_svc_common+0x13c/0x258 [ 207.662454][ T6518] do_el0_svc+0x5c/0x140 [ 207.663156][ T6518] el0_svc+0x78/0x1d0 [ 207.663866][ T6518] el0t_64_sync_handler+0xcc/0xe4 [ 207.664753][ T6518] el0t_64_sync+0x1a0/0x1a4 [ 207.667807][ T6518] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.669912][ T6518] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.854872][ T6521] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.856185][ T6521] CPU: 1 PID: 6521 Comm: syz.1.607 Not tainted syzkaller #0 [ 207.857341][ T6521] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 207.858933][ T6521] Call trace: [ 207.859489][ T6521] dump_backtrace+0x0/0x458 [ 207.860204][ T6521] show_stack+0x2c/0x3c [ 207.860872][ T6521] __dump_stack+0x30/0x40 [ 207.861597][ T6521] dump_stack_lvl+0xf4/0x15c [ 207.862391][ T6521] dump_stack+0x1c/0x5c [ 207.863127][ T6521] sysfs_create_dir_ns+0x244/0x264 [ 207.864021][ T6521] kobject_add_internal+0x594/0xc2c [ 207.864911][ T6521] kobject_init_and_add+0x128/0x194 [ 207.865869][ T6521] gfs2_sys_fs_add+0x208/0x428 [ 207.866723][ T6521] gfs2_fill_super+0xe20/0x1a9c [ 207.867574][ T6521] get_tree_bdev+0x35c/0x54c [ 207.868323][ T6521] gfs2_get_tree+0x58/0x1b8 [ 207.869131][ T6521] vfs_get_tree+0x90/0x278 [ 207.869924][ T6521] do_new_mount+0x228/0x804 [ 207.870687][ T6521] path_mount+0x57c/0xfe8 [ 207.871428][ T6521] __arm64_sys_mount+0x488/0x5f8 [ 207.872301][ T6521] invoke_syscall+0x98/0x28c [ 207.873091][ T6521] el0_svc_common+0x13c/0x258 [ 207.873895][ T6521] do_el0_svc+0x5c/0x140 [ 207.874651][ T6521] el0_svc+0x78/0x1d0 [ 207.875298][ T6521] el0t_64_sync_handler+0xcc/0xe4 [ 207.876197][ T6521] el0t_64_sync+0x1a0/0x1a4 [ 207.880261][ T6521] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.882358][ T6521] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.024676][ T6524] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.025886][ T6524] CPU: 1 PID: 6524 Comm: syz.1.608 Not tainted syzkaller #0 [ 208.027173][ T6524] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.028910][ T6524] Call trace: [ 208.029466][ T6524] dump_backtrace+0x0/0x458 [ 208.030216][ T6524] show_stack+0x2c/0x3c [ 208.030882][ T6524] __dump_stack+0x30/0x40 [ 208.031572][ T6524] dump_stack_lvl+0xf4/0x15c [ 208.032299][ T6524] dump_stack+0x1c/0x5c [ 208.032954][ T6524] sysfs_create_dir_ns+0x244/0x264 [ 208.033775][ T6524] kobject_add_internal+0x594/0xc2c [ 208.034658][ T6524] kobject_init_and_add+0x128/0x194 [ 208.035532][ T6524] gfs2_sys_fs_add+0x208/0x428 [ 208.036276][ T6524] gfs2_fill_super+0xe20/0x1a9c [ 208.037121][ T6524] get_tree_bdev+0x35c/0x54c [ 208.037887][ T6524] gfs2_get_tree+0x58/0x1b8 [ 208.038651][ T6524] vfs_get_tree+0x90/0x278 [ 208.039369][ T6524] do_new_mount+0x228/0x804 [ 208.040113][ T6524] path_mount+0x57c/0xfe8 [ 208.040820][ T6524] __arm64_sys_mount+0x488/0x5f8 [ 208.041633][ T6524] invoke_syscall+0x98/0x28c [ 208.042413][ T6524] el0_svc_common+0x13c/0x258 [ 208.043137][ T6524] do_el0_svc+0x5c/0x140 [ 208.043849][ T6524] el0_svc+0x78/0x1d0 [ 208.044656][ T6524] el0t_64_sync_handler+0xcc/0xe4 [ 208.045521][ T6524] el0t_64_sync+0x1a0/0x1a4 [ 208.049853][ T6524] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.051907][ T6524] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.242277][ T6527] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.243578][ T6527] CPU: 1 PID: 6527 Comm: syz.1.609 Not tainted syzkaller #0 [ 208.244675][ T6527] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.246181][ T6527] Call trace: [ 208.246766][ T6527] dump_backtrace+0x0/0x458 [ 208.247577][ T6527] show_stack+0x2c/0x3c [ 208.248341][ T6527] __dump_stack+0x30/0x40 [ 208.249105][ T6527] dump_stack_lvl+0xf4/0x15c [ 208.249886][ T6527] dump_stack+0x1c/0x5c [ 208.250596][ T6527] sysfs_create_dir_ns+0x244/0x264 [ 208.251465][ T6527] kobject_add_internal+0x594/0xc2c [ 208.252357][ T6527] kobject_init_and_add+0x128/0x194 [ 208.253268][ T6527] gfs2_sys_fs_add+0x208/0x428 [ 208.254080][ T6527] gfs2_fill_super+0xe20/0x1a9c [ 208.254924][ T6527] get_tree_bdev+0x35c/0x54c [ 208.255720][ T6527] gfs2_get_tree+0x58/0x1b8 [ 208.256459][ T6527] vfs_get_tree+0x90/0x278 [ 208.257277][ T6527] do_new_mount+0x228/0x804 [ 208.258100][ T6527] path_mount+0x57c/0xfe8 [ 208.258877][ T6527] __arm64_sys_mount+0x488/0x5f8 [ 208.259706][ T6527] invoke_syscall+0x98/0x28c [ 208.260447][ T6527] el0_svc_common+0x13c/0x258 [ 208.261235][ T6527] do_el0_svc+0x5c/0x140 [ 208.261917][ T6527] el0_svc+0x78/0x1d0 [ 208.262541][ T6527] el0t_64_sync_handler+0xcc/0xe4 [ 208.263387][ T6527] el0t_64_sync+0x1a0/0x1a4 [ 208.265667][ T6527] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.268060][ T6527] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.492995][ T6530] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.494344][ T6530] CPU: 0 PID: 6530 Comm: syz.1.610 Not tainted syzkaller #0 [ 208.495530][ T6530] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.497165][ T6530] Call trace: [ 208.497665][ T6530] dump_backtrace+0x0/0x458 [ 208.498501][ T6530] show_stack+0x2c/0x3c [ 208.499283][ T6530] __dump_stack+0x30/0x40 [ 208.500017][ T6530] dump_stack_lvl+0xf4/0x15c [ 208.500839][ T6530] dump_stack+0x1c/0x5c [ 208.501566][ T6530] sysfs_create_dir_ns+0x244/0x264 [ 208.502498][ T6530] kobject_add_internal+0x594/0xc2c [ 208.503422][ T6530] kobject_init_and_add+0x128/0x194 [ 208.504282][ T6530] gfs2_sys_fs_add+0x208/0x428 [ 208.505087][ T6530] gfs2_fill_super+0xe20/0x1a9c [ 208.505884][ T6530] get_tree_bdev+0x35c/0x54c [ 208.506702][ T6530] gfs2_get_tree+0x58/0x1b8 [ 208.507435][ T6530] vfs_get_tree+0x90/0x278 [ 208.508195][ T6530] do_new_mount+0x228/0x804 [ 208.508951][ T6530] path_mount+0x57c/0xfe8 [ 208.509664][ T6530] __arm64_sys_mount+0x488/0x5f8 [ 208.510507][ T6530] invoke_syscall+0x98/0x28c [ 208.511243][ T6530] el0_svc_common+0x13c/0x258 [ 208.511966][ T6530] do_el0_svc+0x5c/0x140 [ 208.512732][ T6530] el0_svc+0x78/0x1d0 [ 208.513410][ T6530] el0t_64_sync_handler+0xcc/0xe4 [ 208.514266][ T6530] el0t_64_sync+0x1a0/0x1a4 [ 208.516583][ T6530] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.518878][ T6530] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.747848][ T6533] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.749178][ T6533] CPU: 1 PID: 6533 Comm: syz.1.611 Not tainted syzkaller #0 [ 208.750362][ T6533] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 208.751863][ T6533] Call trace: [ 208.752397][ T6533] dump_backtrace+0x0/0x458 [ 208.753100][ T6533] show_stack+0x2c/0x3c [ 208.753795][ T6533] __dump_stack+0x30/0x40 [ 208.754460][ T6533] dump_stack_lvl+0xf4/0x15c [ 208.755197][ T6533] dump_stack+0x1c/0x5c [ 208.755877][ T6533] sysfs_create_dir_ns+0x244/0x264 [ 208.756731][ T6533] kobject_add_internal+0x594/0xc2c [ 208.757617][ T6533] kobject_init_and_add+0x128/0x194 [ 208.758468][ T6533] gfs2_sys_fs_add+0x208/0x428 [ 208.759307][ T6533] gfs2_fill_super+0xe20/0x1a9c [ 208.760073][ T6533] get_tree_bdev+0x35c/0x54c [ 208.760781][ T6533] gfs2_get_tree+0x58/0x1b8 [ 208.761524][ T6533] vfs_get_tree+0x90/0x278 [ 208.762221][ T6533] do_new_mount+0x228/0x804 [ 208.762971][ T6533] path_mount+0x57c/0xfe8 [ 208.763725][ T6533] __arm64_sys_mount+0x488/0x5f8 [ 208.764511][ T6533] invoke_syscall+0x98/0x28c [ 208.765291][ T6533] el0_svc_common+0x13c/0x258 [ 208.766063][ T6533] do_el0_svc+0x5c/0x140 [ 208.766721][ T6533] el0_svc+0x78/0x1d0 [ 208.767365][ T6533] el0t_64_sync_handler+0xcc/0xe4 [ 208.768189][ T6533] el0t_64_sync+0x1a0/0x1a4 [ 208.770946][ T6533] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.773222][ T6533] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.039207][ T6536] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.040556][ T6536] CPU: 1 PID: 6536 Comm: syz.1.612 Not tainted syzkaller #0 [ 209.041759][ T6536] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.043375][ T6536] Call trace: [ 209.043942][ T6536] dump_backtrace+0x0/0x458 [ 209.044653][ T6536] show_stack+0x2c/0x3c [ 209.045282][ T6536] __dump_stack+0x30/0x40 [ 209.045954][ T6536] dump_stack_lvl+0xf4/0x15c [ 209.046709][ T6536] dump_stack+0x1c/0x5c [ 209.047377][ T6536] sysfs_create_dir_ns+0x244/0x264 [ 209.048240][ T6536] kobject_add_internal+0x594/0xc2c [ 209.049113][ T6536] kobject_init_and_add+0x128/0x194 [ 209.049938][ T6536] gfs2_sys_fs_add+0x208/0x428 [ 209.050713][ T6536] gfs2_fill_super+0xe20/0x1a9c [ 209.051507][ T6536] get_tree_bdev+0x35c/0x54c [ 209.052246][ T6536] gfs2_get_tree+0x58/0x1b8 [ 209.052971][ T6536] vfs_get_tree+0x90/0x278 [ 209.053698][ T6536] do_new_mount+0x228/0x804 [ 209.054521][ T6536] path_mount+0x57c/0xfe8 [ 209.055266][ T6536] __arm64_sys_mount+0x488/0x5f8 [ 209.056100][ T6536] invoke_syscall+0x98/0x28c [ 209.056882][ T6536] el0_svc_common+0x13c/0x258 [ 209.057719][ T6536] do_el0_svc+0x5c/0x140 [ 209.058433][ T6536] el0_svc+0x78/0x1d0 [ 209.059089][ T6536] el0t_64_sync_handler+0xcc/0xe4 [ 209.059945][ T6536] el0t_64_sync+0x1a0/0x1a4 [ 209.062632][ T6536] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.065075][ T6536] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.249126][ T6539] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.250584][ T6539] CPU: 1 PID: 6539 Comm: syz.1.613 Not tainted syzkaller #0 [ 209.251804][ T6539] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.253370][ T6539] Call trace: [ 209.253877][ T6539] dump_backtrace+0x0/0x458 [ 209.254659][ T6539] show_stack+0x2c/0x3c [ 209.255296][ T6539] __dump_stack+0x30/0x40 [ 209.255971][ T6539] dump_stack_lvl+0xf4/0x15c [ 209.256636][ T6539] dump_stack+0x1c/0x5c [ 209.257319][ T6539] sysfs_create_dir_ns+0x244/0x264 [ 209.258121][ T6539] kobject_add_internal+0x594/0xc2c [ 209.258982][ T6539] kobject_init_and_add+0x128/0x194 [ 209.259848][ T6539] gfs2_sys_fs_add+0x208/0x428 [ 209.260639][ T6539] gfs2_fill_super+0xe20/0x1a9c [ 209.261456][ T6539] get_tree_bdev+0x35c/0x54c [ 209.262183][ T6539] gfs2_get_tree+0x58/0x1b8 [ 209.262946][ T6539] vfs_get_tree+0x90/0x278 [ 209.263704][ T6539] do_new_mount+0x228/0x804 [ 209.264418][ T6539] path_mount+0x57c/0xfe8 [ 209.265180][ T6539] __arm64_sys_mount+0x488/0x5f8 [ 209.265972][ T6539] invoke_syscall+0x98/0x28c [ 209.266770][ T6539] el0_svc_common+0x13c/0x258 [ 209.267560][ T6539] do_el0_svc+0x5c/0x140 [ 209.268268][ T6539] el0_svc+0x78/0x1d0 [ 209.268930][ T6539] el0t_64_sync_handler+0xcc/0xe4 [ 209.269842][ T6539] el0t_64_sync+0x1a0/0x1a4 [ 209.272237][ T6539] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.274373][ T6539] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.462379][ T6542] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.463670][ T6542] CPU: 0 PID: 6542 Comm: syz.1.614 Not tainted syzkaller #0 [ 209.464944][ T6542] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.466611][ T6542] Call trace: [ 209.467145][ T6542] dump_backtrace+0x0/0x458 [ 209.467862][ T6542] show_stack+0x2c/0x3c [ 209.468535][ T6542] __dump_stack+0x30/0x40 [ 209.469300][ T6542] dump_stack_lvl+0xf4/0x15c [ 209.470086][ T6542] dump_stack+0x1c/0x5c [ 209.470832][ T6542] sysfs_create_dir_ns+0x244/0x264 [ 209.471755][ T6542] kobject_add_internal+0x594/0xc2c [ 209.472648][ T6542] kobject_init_and_add+0x128/0x194 [ 209.473510][ T6542] gfs2_sys_fs_add+0x208/0x428 [ 209.474346][ T6542] gfs2_fill_super+0xe20/0x1a9c [ 209.475195][ T6542] get_tree_bdev+0x35c/0x54c [ 209.476086][ T6542] gfs2_get_tree+0x58/0x1b8 [ 209.476885][ T6542] vfs_get_tree+0x90/0x278 [ 209.477624][ T6542] do_new_mount+0x228/0x804 [ 209.478406][ T6542] path_mount+0x57c/0xfe8 [ 209.479147][ T6542] __arm64_sys_mount+0x488/0x5f8 [ 209.480007][ T6542] invoke_syscall+0x98/0x28c [ 209.480769][ T6542] el0_svc_common+0x13c/0x258 [ 209.481534][ T6542] do_el0_svc+0x5c/0x140 [ 209.482223][ T6542] el0_svc+0x78/0x1d0 [ 209.482878][ T6542] el0t_64_sync_handler+0xcc/0xe4 [ 209.483744][ T6542] el0t_64_sync+0x1a0/0x1a4 [ 209.486371][ T6542] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.488657][ T6542] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.633428][ T6545] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.634790][ T6545] CPU: 1 PID: 6545 Comm: syz.1.615 Not tainted syzkaller #0 [ 209.635999][ T6545] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.637548][ T6545] Call trace: [ 209.638168][ T6545] dump_backtrace+0x0/0x458 [ 209.638932][ T6545] show_stack+0x2c/0x3c [ 209.639695][ T6545] __dump_stack+0x30/0x40 [ 209.640436][ T6545] dump_stack_lvl+0xf4/0x15c [ 209.641198][ T6545] dump_stack+0x1c/0x5c [ 209.641873][ T6545] sysfs_create_dir_ns+0x244/0x264 [ 209.642711][ T6545] kobject_add_internal+0x594/0xc2c [ 209.643593][ T6545] kobject_init_and_add+0x128/0x194 [ 209.644428][ T6545] gfs2_sys_fs_add+0x208/0x428 [ 209.645241][ T6545] gfs2_fill_super+0xe20/0x1a9c [ 209.646033][ T6545] get_tree_bdev+0x35c/0x54c [ 209.646847][ T6545] gfs2_get_tree+0x58/0x1b8 [ 209.647626][ T6545] vfs_get_tree+0x90/0x278 [ 209.648388][ T6545] do_new_mount+0x228/0x804 [ 209.649123][ T6545] path_mount+0x57c/0xfe8 [ 209.649810][ T6545] __arm64_sys_mount+0x488/0x5f8 [ 209.650557][ T6545] invoke_syscall+0x98/0x28c [ 209.651258][ T6545] el0_svc_common+0x13c/0x258 [ 209.652030][ T6545] do_el0_svc+0x5c/0x140 [ 209.652726][ T6545] el0_svc+0x78/0x1d0 [ 209.653424][ T6545] el0t_64_sync_handler+0xcc/0xe4 [ 209.654271][ T6545] el0t_64_sync+0x1a0/0x1a4 [ 209.656971][ T6545] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.659325][ T6545] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.833937][ T6548] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.835242][ T6548] CPU: 1 PID: 6548 Comm: syz.1.616 Not tainted syzkaller #0 [ 209.836417][ T6548] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 209.838076][ T6548] Call trace: [ 209.838627][ T6548] dump_backtrace+0x0/0x458 [ 209.839321][ T6548] show_stack+0x2c/0x3c [ 209.840019][ T6548] __dump_stack+0x30/0x40 [ 209.840697][ T6548] dump_stack_lvl+0xf4/0x15c [ 209.841560][ T6548] dump_stack+0x1c/0x5c [ 209.842288][ T6548] sysfs_create_dir_ns+0x244/0x264 [ 209.843102][ T6548] kobject_add_internal+0x594/0xc2c [ 209.843977][ T6548] kobject_init_and_add+0x128/0x194 [ 209.844835][ T6548] gfs2_sys_fs_add+0x208/0x428 [ 209.845680][ T6548] gfs2_fill_super+0xe20/0x1a9c [ 209.846466][ T6548] get_tree_bdev+0x35c/0x54c [ 209.847253][ T6548] gfs2_get_tree+0x58/0x1b8 [ 209.848044][ T6548] vfs_get_tree+0x90/0x278 [ 209.848795][ T6548] do_new_mount+0x228/0x804 [ 209.849546][ T6548] path_mount+0x57c/0xfe8 [ 209.850253][ T6548] __arm64_sys_mount+0x488/0x5f8 [ 209.851061][ T6548] invoke_syscall+0x98/0x28c [ 209.851784][ T6548] el0_svc_common+0x13c/0x258 [ 209.852532][ T6548] do_el0_svc+0x5c/0x140 [ 209.853188][ T6548] el0_svc+0x78/0x1d0 [ 209.853885][ T6548] el0t_64_sync_handler+0xcc/0xe4 [ 209.854711][ T6548] el0t_64_sync+0x1a0/0x1a4 [ 209.857229][ T6548] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.859678][ T6548] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.082321][ T6551] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.083654][ T6551] CPU: 1 PID: 6551 Comm: syz.1.617 Not tainted syzkaller #0 [ 210.084844][ T6551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 210.086337][ T6551] Call trace: [ 210.086837][ T6551] dump_backtrace+0x0/0x458 [ 210.087483][ T6551] show_stack+0x2c/0x3c [ 210.088169][ T6551] __dump_stack+0x30/0x40 [ 210.088904][ T6551] dump_stack_lvl+0xf4/0x15c [ 210.089638][ T6551] dump_stack+0x1c/0x5c [ 210.090341][ T6551] sysfs_create_dir_ns+0x244/0x264 [ 210.091181][ T6551] kobject_add_internal+0x594/0xc2c [ 210.092050][ T6551] kobject_init_and_add+0x128/0x194 [ 210.092962][ T6551] gfs2_sys_fs_add+0x208/0x428 [ 210.093749][ T6551] gfs2_fill_super+0xe20/0x1a9c [ 210.094568][ T6551] get_tree_bdev+0x35c/0x54c [ 210.095345][ T6551] gfs2_get_tree+0x58/0x1b8 [ 210.096071][ T6551] vfs_get_tree+0x90/0x278 [ 210.096797][ T6551] do_new_mount+0x228/0x804 [ 210.097537][ T6551] path_mount+0x57c/0xfe8 [ 210.098240][ T6551] __arm64_sys_mount+0x488/0x5f8 [ 210.099037][ T6551] invoke_syscall+0x98/0x28c [ 210.099782][ T6551] el0_svc_common+0x13c/0x258 [ 210.100563][ T6551] do_el0_svc+0x5c/0x140 [ 210.101243][ T6551] el0_svc+0x78/0x1d0 [ 210.101906][ T6551] el0t_64_sync_handler+0xcc/0xe4 [ 210.102760][ T6551] el0t_64_sync+0x1a0/0x1a4 [ 210.105254][ T6551] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.107410][ T6551] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.197418][ T6554] chnl_net:caif_netlink_parms(): no params data found [ 210.217220][ T6554] bridge0: port 1(bridge_slave_0) entered blocking state [ 210.219729][ T6554] bridge0: port 1(bridge_slave_0) entered disabled state [ 210.221334][ T6554] device bridge_slave_0 entered promiscuous mode [ 210.224122][ T6554] bridge0: port 2(bridge_slave_1) entered blocking state [ 210.225316][ T6554] bridge0: port 2(bridge_slave_1) entered disabled state [ 210.226821][ T6554] device bridge_slave_1 entered promiscuous mode [ 210.235361][ T6554] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 210.238246][ T6554] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 210.247497][ T6554] team0: Port device team_slave_0 added [ 210.250105][ T6554] team0: Port device team_slave_1 added [ 210.257263][ T6554] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 210.258635][ T6554] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 210.262520][ T6554] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 210.264927][ T6554] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 210.266016][ T6554] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 210.270479][ T6554] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 210.339088][ T6554] device hsr_slave_0 entered promiscuous mode [ 210.357995][ T6554] device hsr_slave_1 entered promiscuous mode [ 210.407767][ T6554] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 210.409191][ T6554] Cannot create hsr debugfs directory [ 210.452285][ T6554] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 210.922147][ T6554] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 210.984839][ T6554] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 211.022318][ T6554] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 211.181156][ T6554] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 211.215262][ T6554] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 211.251758][ T6554] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 211.292096][ T6554] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 211.366837][ T6554] 8021q: adding VLAN 0 to HW filter on device bond0 [ 211.371127][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 211.373156][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 211.375973][ T6554] 8021q: adding VLAN 0 to HW filter on device team0 [ 211.381040][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 211.382742][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 211.384369][ T1643] bridge0: port 1(bridge_slave_0) entered blocking state [ 211.385565][ T1643] bridge0: port 1(bridge_slave_0) entered forwarding state [ 211.387052][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 211.390593][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 211.392322][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 211.393949][ T391] bridge0: port 2(bridge_slave_1) entered blocking state [ 211.395217][ T391] bridge0: port 2(bridge_slave_1) entered forwarding state [ 211.400252][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 211.406975][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 211.411048][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 211.412943][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 211.414728][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 211.419816][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 211.421584][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 211.424506][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 211.426137][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 211.429683][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 211.431394][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 211.433942][ T6554] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 211.480200][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 211.481531][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 211.485335][ T6554] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 211.492527][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 211.494338][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 211.502484][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 211.504718][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 211.506499][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 211.508855][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 211.511325][ T6554] device veth0_vlan entered promiscuous mode [ 211.515386][ T6554] device veth1_vlan entered promiscuous mode [ 211.524650][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 211.526319][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 211.528787][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 211.530441][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 211.536090][ T6554] device veth0_macvtap entered promiscuous mode [ 211.540041][ T6554] device veth1_macvtap entered promiscuous mode [ 211.545442][ T6554] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 211.547200][ T6554] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 211.548990][ T6554] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 211.550670][ T6554] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 211.553019][ T6554] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 211.555226][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 211.556876][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 211.559438][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 211.561411][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 211.563341][ T6554] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 211.565096][ T6554] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 211.566777][ T6554] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 211.569573][ T6554] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 211.571651][ T6554] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 211.573001][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 211.575117][ T391] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 211.582512][ T6554] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 211.583892][ T6554] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 211.585343][ T6554] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 211.586787][ T6554] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 211.613944][ T1643] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 211.615531][ T1643] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 211.623182][ T1643] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 211.627395][ T391] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 211.629836][ T391] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 211.631237][ T9] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 1970/01/01 00:03:31 executed programs: 604 [ 211.779215][ T6566] set_capacity_and_notify: 13 callbacks suppressed [ 211.779225][ T6566] loop1: detected capacity change from 0 to 32768 [ 211.819132][ T6566] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.820405][ T6566] CPU: 1 PID: 6566 Comm: syz.1.618 Not tainted syzkaller #0 [ 211.821558][ T6566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 211.823267][ T6566] Call trace: [ 211.823869][ T6566] dump_backtrace+0x0/0x458 [ 211.824561][ T6566] show_stack+0x2c/0x3c [ 211.825275][ T6566] __dump_stack+0x30/0x40 [ 211.826131][ T6566] dump_stack_lvl+0xf4/0x15c [ 211.826844][ T6566] dump_stack+0x1c/0x5c [ 211.827517][ T6566] sysfs_create_dir_ns+0x244/0x264 [ 211.828415][ T6566] kobject_add_internal+0x594/0xc2c [ 211.829292][ T6566] kobject_init_and_add+0x128/0x194 [ 211.830156][ T6566] gfs2_sys_fs_add+0x208/0x428 [ 211.830914][ T6566] gfs2_fill_super+0xe20/0x1a9c [ 211.831716][ T6566] get_tree_bdev+0x35c/0x54c [ 211.832566][ T6566] gfs2_get_tree+0x58/0x1b8 [ 211.833324][ T6566] vfs_get_tree+0x90/0x278 [ 211.834026][ T6566] do_new_mount+0x228/0x804 [ 211.834755][ T6566] path_mount+0x57c/0xfe8 [ 211.835462][ T6566] __arm64_sys_mount+0x488/0x5f8 [ 211.836278][ T6566] invoke_syscall+0x98/0x28c [ 211.837114][ T6566] el0_svc_common+0x13c/0x258 [ 211.837933][ T6566] do_el0_svc+0x5c/0x140 [ 211.838657][ T6566] el0_svc+0x78/0x1d0 [ 211.839370][ T6566] el0t_64_sync_handler+0xcc/0xe4 [ 211.840290][ T6566] el0t_64_sync+0x1a0/0x1a4 [ 211.844026][ T6566] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.846216][ T6566] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.983742][ T6569] loop1: detected capacity change from 0 to 32768 [ 212.070404][ T6569] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.071890][ T6569] CPU: 0 PID: 6569 Comm: syz.1.619 Not tainted syzkaller #0 [ 212.073110][ T6569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.074750][ T6569] Call trace: [ 212.075286][ T6569] dump_backtrace+0x0/0x458 [ 212.075988][ T6569] show_stack+0x2c/0x3c [ 212.076635][ T6569] __dump_stack+0x30/0x40 [ 212.077367][ T6569] dump_stack_lvl+0xf4/0x15c [ 212.078148][ T6569] dump_stack+0x1c/0x5c [ 212.078826][ T6569] sysfs_create_dir_ns+0x244/0x264 [ 212.079685][ T6569] kobject_add_internal+0x594/0xc2c [ 212.080544][ T6569] kobject_init_and_add+0x128/0x194 [ 212.081397][ T6569] gfs2_sys_fs_add+0x208/0x428 [ 212.082206][ T6569] gfs2_fill_super+0xe20/0x1a9c [ 212.083037][ T6569] get_tree_bdev+0x35c/0x54c [ 212.083840][ T6569] gfs2_get_tree+0x58/0x1b8 [ 212.084586][ T6569] vfs_get_tree+0x90/0x278 [ 212.085337][ T6569] do_new_mount+0x228/0x804 [ 212.086133][ T6569] path_mount+0x57c/0xfe8 [ 212.086845][ T6569] __arm64_sys_mount+0x488/0x5f8 [ 212.087682][ T6569] invoke_syscall+0x98/0x28c [ 212.088441][ T6569] el0_svc_common+0x13c/0x258 [ 212.089211][ T6569] do_el0_svc+0x5c/0x140 [ 212.089910][ T6569] el0_svc+0x78/0x1d0 [ 212.090571][ T6569] el0t_64_sync_handler+0xcc/0xe4 [ 212.091445][ T6569] el0t_64_sync+0x1a0/0x1a4 [ 212.093909][ T6569] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.096051][ T6569] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.237196][ T6572] loop1: detected capacity change from 0 to 32768 [ 212.248053][ T4165] Bluetooth: hci2: command 0x0409 tx timeout [ 212.279206][ T6572] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.280533][ T6572] CPU: 0 PID: 6572 Comm: syz.1.620 Not tainted syzkaller #0 [ 212.281684][ T6572] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.283210][ T6572] Call trace: [ 212.283747][ T6572] dump_backtrace+0x0/0x458 [ 212.284486][ T6572] show_stack+0x2c/0x3c [ 212.285196][ T6572] __dump_stack+0x30/0x40 [ 212.285944][ T6572] dump_stack_lvl+0xf4/0x15c [ 212.286779][ T6572] dump_stack+0x1c/0x5c [ 212.287502][ T6572] sysfs_create_dir_ns+0x244/0x264 [ 212.288383][ T6572] kobject_add_internal+0x594/0xc2c [ 212.289268][ T6572] kobject_init_and_add+0x128/0x194 [ 212.290142][ T6572] gfs2_sys_fs_add+0x208/0x428 [ 212.290963][ T6572] gfs2_fill_super+0xe20/0x1a9c [ 212.291828][ T6572] get_tree_bdev+0x35c/0x54c [ 212.292607][ T6572] gfs2_get_tree+0x58/0x1b8 [ 212.293371][ T6572] vfs_get_tree+0x90/0x278 [ 212.294130][ T6572] do_new_mount+0x228/0x804 [ 212.294912][ T6572] path_mount+0x57c/0xfe8 [ 212.295666][ T6572] __arm64_sys_mount+0x488/0x5f8 [ 212.296498][ T6572] invoke_syscall+0x98/0x28c [ 212.297257][ T6572] el0_svc_common+0x13c/0x258 [ 212.298091][ T6572] do_el0_svc+0x5c/0x140 [ 212.298843][ T6572] el0_svc+0x78/0x1d0 [ 212.299526][ T6572] el0t_64_sync_handler+0xcc/0xe4 [ 212.300437][ T6572] el0t_64_sync+0x1a0/0x1a4 [ 212.303080][ T6572] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.305114][ T6572] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.316822][ T136] device hsr_slave_0 left promiscuous mode [ 212.358129][ T136] device hsr_slave_1 left promiscuous mode [ 212.443554][ T6575] loop1: detected capacity change from 0 to 32768 [ 212.458433][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 212.459737][ T136] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 212.461265][ T136] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 212.462529][ T136] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 212.463909][ T136] device bridge_slave_1 left promiscuous mode [ 212.464885][ T136] bridge0: port 2(bridge_slave_1) entered disabled state [ 212.479432][ T6575] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.480670][ T6575] CPU: 1 PID: 6575 Comm: syz.1.621 Not tainted syzkaller #0 [ 212.481853][ T6575] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.483528][ T6575] Call trace: [ 212.484045][ T6575] dump_backtrace+0x0/0x458 [ 212.484730][ T6575] show_stack+0x2c/0x3c [ 212.485343][ T6575] __dump_stack+0x30/0x40 [ 212.486035][ T6575] dump_stack_lvl+0xf4/0x15c [ 212.486783][ T6575] dump_stack+0x1c/0x5c [ 212.487457][ T6575] sysfs_create_dir_ns+0x244/0x264 [ 212.488316][ T6575] kobject_add_internal+0x594/0xc2c [ 212.489240][ T6575] kobject_init_and_add+0x128/0x194 [ 212.490122][ T6575] gfs2_sys_fs_add+0x208/0x428 [ 212.490895][ T6575] gfs2_fill_super+0xe20/0x1a9c [ 212.491745][ T6575] get_tree_bdev+0x35c/0x54c [ 212.492531][ T6575] gfs2_get_tree+0x58/0x1b8 [ 212.493352][ T6575] vfs_get_tree+0x90/0x278 [ 212.494073][ T6575] do_new_mount+0x228/0x804 [ 212.494835][ T6575] path_mount+0x57c/0xfe8 [ 212.495577][ T6575] __arm64_sys_mount+0x488/0x5f8 [ 212.496439][ T6575] invoke_syscall+0x98/0x28c [ 212.497273][ T6575] el0_svc_common+0x13c/0x258 [ 212.498062][ T6575] do_el0_svc+0x5c/0x140 [ 212.498751][ T6575] el0_svc+0x78/0x1d0 [ 212.499412][ T6575] el0t_64_sync_handler+0xcc/0xe4 [ 212.500283][ T6575] el0t_64_sync+0x1a0/0x1a4 [ 212.502268][ T136] device bridge_slave_0 left promiscuous mode [ 212.504420][ T136] bridge0: port 1(bridge_slave_0) entered disabled state [ 212.506896][ T6575] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.509505][ T6575] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.608206][ T136] device veth1_macvtap left promiscuous mode [ 212.609284][ T136] device veth0_macvtap left promiscuous mode [ 212.610322][ T136] device veth1_vlan left promiscuous mode [ 212.611337][ T136] device veth0_vlan left promiscuous mode [ 212.648221][ T6578] loop1: detected capacity change from 0 to 32768 [ 212.656409][ T6578] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.657631][ T6578] CPU: 0 PID: 6578 Comm: syz.1.622 Not tainted syzkaller #0 [ 212.658931][ T6578] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.660746][ T6578] Call trace: [ 212.661292][ T6578] dump_backtrace+0x0/0x458 [ 212.662045][ T6578] show_stack+0x2c/0x3c [ 212.662803][ T6578] __dump_stack+0x30/0x40 [ 212.663546][ T6578] dump_stack_lvl+0xf4/0x15c [ 212.664366][ T6578] dump_stack+0x1c/0x5c [ 212.665110][ T6578] sysfs_create_dir_ns+0x244/0x264 [ 212.666040][ T6578] kobject_add_internal+0x594/0xc2c [ 212.666936][ T6578] kobject_init_and_add+0x128/0x194 [ 212.667844][ T6578] gfs2_sys_fs_add+0x208/0x428 [ 212.668648][ T6578] gfs2_fill_super+0xe20/0x1a9c [ 212.669442][ T6578] get_tree_bdev+0x35c/0x54c [ 212.670204][ T6578] gfs2_get_tree+0x58/0x1b8 [ 212.670965][ T6578] vfs_get_tree+0x90/0x278 [ 212.671718][ T6578] do_new_mount+0x228/0x804 [ 212.672514][ T6578] path_mount+0x57c/0xfe8 [ 212.673222][ T6578] __arm64_sys_mount+0x488/0x5f8 [ 212.674078][ T6578] invoke_syscall+0x98/0x28c [ 212.674900][ T6578] el0_svc_common+0x13c/0x258 [ 212.675729][ T6578] do_el0_svc+0x5c/0x140 [ 212.676471][ T6578] el0_svc+0x78/0x1d0 [ 212.677142][ T6578] el0t_64_sync_handler+0xcc/0xe4 [ 212.677967][ T6578] el0t_64_sync+0x1a0/0x1a4 [ 212.679639][ T6578] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.682108][ T6578] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.815055][ T136] team0 (unregistering): Port device team_slave_1 removed [ 212.823156][ T136] team0 (unregistering): Port device team_slave_0 removed [ 212.828464][ T136] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 212.832819][ T6581] loop1: detected capacity change from 0 to 32768 [ 212.838830][ T6581] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 212.840127][ T6581] CPU: 1 PID: 6581 Comm: syz.1.623 Not tainted syzkaller #0 [ 212.841237][ T6581] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 212.842841][ T6581] Call trace: [ 212.843360][ T6581] dump_backtrace+0x0/0x458 [ 212.844079][ T6581] show_stack+0x2c/0x3c [ 212.844740][ T6581] __dump_stack+0x30/0x40 [ 212.845414][ T6581] dump_stack_lvl+0xf4/0x15c [ 212.846186][ T6581] dump_stack+0x1c/0x5c [ 212.846822][ T6581] sysfs_create_dir_ns+0x244/0x264 [ 212.847638][ T6581] kobject_add_internal+0x594/0xc2c [ 212.848498][ T6581] kobject_init_and_add+0x128/0x194 [ 212.849437][ T6581] gfs2_sys_fs_add+0x208/0x428 [ 212.850293][ T6581] gfs2_fill_super+0xe20/0x1a9c [ 212.851150][ T6581] get_tree_bdev+0x35c/0x54c [ 212.851973][ T6581] gfs2_get_tree+0x58/0x1b8 [ 212.852815][ T6581] vfs_get_tree+0x90/0x278 [ 212.853582][ T6581] do_new_mount+0x228/0x804 [ 212.854383][ T6581] path_mount+0x57c/0xfe8 [ 212.855157][ T6581] __arm64_sys_mount+0x488/0x5f8 [ 212.855975][ T6581] invoke_syscall+0x98/0x28c [ 212.856768][ T6581] el0_svc_common+0x13c/0x258 [ 212.857550][ T6581] do_el0_svc+0x5c/0x140 [ 212.858327][ T6581] el0_svc+0x78/0x1d0 [ 212.859007][ T6581] el0t_64_sync_handler+0xcc/0xe4 [ 212.859866][ T6581] el0t_64_sync+0x1a0/0x1a4 [ 212.861003][ T6581] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 212.863090][ T6581] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 212.882088][ T136] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 212.992845][ T136] bond0 (unregistering): Released all slaves [ 213.031040][ T6584] loop1: detected capacity change from 0 to 32768 [ 213.041136][ T6584] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.042424][ T6584] CPU: 1 PID: 6584 Comm: syz.1.624 Not tainted syzkaller #0 [ 213.043651][ T6584] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.045296][ T6584] Call trace: [ 213.045827][ T6584] dump_backtrace+0x0/0x458 [ 213.046565][ T6584] show_stack+0x2c/0x3c [ 213.047188][ T6584] __dump_stack+0x30/0x40 [ 213.047935][ T6584] dump_stack_lvl+0xf4/0x15c [ 213.048907][ T6584] dump_stack+0x1c/0x5c [ 213.049767][ T6584] sysfs_create_dir_ns+0x244/0x264 [ 213.050744][ T6584] kobject_add_internal+0x594/0xc2c [ 213.051617][ T6584] kobject_init_and_add+0x128/0x194 [ 213.052533][ T6584] gfs2_sys_fs_add+0x208/0x428 [ 213.053378][ T6584] gfs2_fill_super+0xe20/0x1a9c [ 213.054236][ T6584] get_tree_bdev+0x35c/0x54c [ 213.054990][ T6584] gfs2_get_tree+0x58/0x1b8 [ 213.055687][ T6584] vfs_get_tree+0x90/0x278 [ 213.056462][ T6584] do_new_mount+0x228/0x804 [ 213.057274][ T6584] path_mount+0x57c/0xfe8 [ 213.058012][ T6584] __arm64_sys_mount+0x488/0x5f8 [ 213.058867][ T6584] invoke_syscall+0x98/0x28c [ 213.059692][ T6584] el0_svc_common+0x13c/0x258 [ 213.060485][ T6584] do_el0_svc+0x5c/0x140 [ 213.061186][ T6584] el0_svc+0x78/0x1d0 [ 213.061861][ T6584] el0t_64_sync_handler+0xcc/0xe4 [ 213.062665][ T6584] el0t_64_sync+0x1a0/0x1a4 [ 213.064234][ T6584] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.066425][ T6584] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.258534][ T6587] loop1: detected capacity change from 0 to 32768 [ 213.309640][ T6587] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.310972][ T6587] CPU: 1 PID: 6587 Comm: syz.1.625 Not tainted syzkaller #0 [ 213.312225][ T6587] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.313729][ T6587] Call trace: [ 213.314251][ T6587] dump_backtrace+0x0/0x458 [ 213.314980][ T6587] show_stack+0x2c/0x3c [ 213.315652][ T6587] __dump_stack+0x30/0x40 [ 213.316329][ T6587] dump_stack_lvl+0xf4/0x15c [ 213.317035][ T6587] dump_stack+0x1c/0x5c [ 213.317693][ T6587] sysfs_create_dir_ns+0x244/0x264 [ 213.318525][ T6587] kobject_add_internal+0x594/0xc2c [ 213.319441][ T6587] kobject_init_and_add+0x128/0x194 [ 213.320375][ T6587] gfs2_sys_fs_add+0x208/0x428 [ 213.321240][ T6587] gfs2_fill_super+0xe20/0x1a9c [ 213.322075][ T6587] get_tree_bdev+0x35c/0x54c [ 213.322838][ T6587] gfs2_get_tree+0x58/0x1b8 [ 213.323662][ T6587] vfs_get_tree+0x90/0x278 [ 213.324469][ T6587] do_new_mount+0x228/0x804 [ 213.325268][ T6587] path_mount+0x57c/0xfe8 [ 213.326047][ T6587] __arm64_sys_mount+0x488/0x5f8 [ 213.326913][ T6587] invoke_syscall+0x98/0x28c [ 213.327662][ T6587] el0_svc_common+0x13c/0x258 [ 213.328482][ T6587] do_el0_svc+0x5c/0x140 [ 213.329230][ T6587] el0_svc+0x78/0x1d0 [ 213.329934][ T6587] el0t_64_sync_handler+0xcc/0xe4 [ 213.330762][ T6587] el0t_64_sync+0x1a0/0x1a4 [ 213.341814][ T6587] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.343980][ T6587] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.480930][ T6590] loop1: detected capacity change from 0 to 32768 [ 213.574407][ T6590] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.575631][ T6590] CPU: 1 PID: 6590 Comm: syz.1.626 Not tainted syzkaller #0 [ 213.577000][ T6590] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.578797][ T6590] Call trace: [ 213.579335][ T6590] dump_backtrace+0x0/0x458 [ 213.580091][ T6590] show_stack+0x2c/0x3c [ 213.580822][ T6590] __dump_stack+0x30/0x40 [ 213.581484][ T6590] dump_stack_lvl+0xf4/0x15c [ 213.582232][ T6590] dump_stack+0x1c/0x5c [ 213.582884][ T6590] sysfs_create_dir_ns+0x244/0x264 [ 213.583758][ T6590] kobject_add_internal+0x594/0xc2c [ 213.584659][ T6590] kobject_init_and_add+0x128/0x194 [ 213.585530][ T6590] gfs2_sys_fs_add+0x208/0x428 [ 213.586315][ T6590] gfs2_fill_super+0xe20/0x1a9c [ 213.587138][ T6590] get_tree_bdev+0x35c/0x54c [ 213.587926][ T6590] gfs2_get_tree+0x58/0x1b8 [ 213.588678][ T6590] vfs_get_tree+0x90/0x278 [ 213.589387][ T6590] do_new_mount+0x228/0x804 [ 213.590124][ T6590] path_mount+0x57c/0xfe8 [ 213.590849][ T6590] __arm64_sys_mount+0x488/0x5f8 [ 213.591707][ T6590] invoke_syscall+0x98/0x28c [ 213.592461][ T6590] el0_svc_common+0x13c/0x258 [ 213.593330][ T6590] do_el0_svc+0x5c/0x140 [ 213.594031][ T6590] el0_svc+0x78/0x1d0 [ 213.594727][ T6590] el0t_64_sync_handler+0xcc/0xe4 [ 213.595520][ T6590] el0t_64_sync+0x1a0/0x1a4 [ 213.598304][ T6590] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.600299][ T6590] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.779197][ T6593] loop1: detected capacity change from 0 to 32768 [ 213.867458][ T6593] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.869038][ T6593] CPU: 0 PID: 6593 Comm: syz.1.627 Not tainted syzkaller #0 [ 213.870321][ T6593] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 213.871917][ T6593] Call trace: [ 213.872444][ T6593] dump_backtrace+0x0/0x458 [ 213.873271][ T6593] show_stack+0x2c/0x3c [ 213.873985][ T6593] __dump_stack+0x30/0x40 [ 213.874668][ T6593] dump_stack_lvl+0xf4/0x15c [ 213.875362][ T6593] dump_stack+0x1c/0x5c [ 213.876077][ T6593] sysfs_create_dir_ns+0x244/0x264 [ 213.876815][ T6593] kobject_add_internal+0x594/0xc2c [ 213.877651][ T6593] kobject_init_and_add+0x128/0x194 [ 213.878460][ T6593] gfs2_sys_fs_add+0x208/0x428 [ 213.879293][ T6593] gfs2_fill_super+0xe20/0x1a9c [ 213.880123][ T6593] get_tree_bdev+0x35c/0x54c [ 213.880896][ T6593] gfs2_get_tree+0x58/0x1b8 [ 213.881659][ T6593] vfs_get_tree+0x90/0x278 [ 213.882476][ T6593] do_new_mount+0x228/0x804 [ 213.883259][ T6593] path_mount+0x57c/0xfe8 [ 213.884032][ T6593] __arm64_sys_mount+0x488/0x5f8 [ 213.884873][ T6593] invoke_syscall+0x98/0x28c [ 213.885639][ T6593] el0_svc_common+0x13c/0x258 [ 213.886399][ T6593] do_el0_svc+0x5c/0x140 [ 213.887127][ T6593] el0_svc+0x78/0x1d0 [ 213.887762][ T6593] el0t_64_sync_handler+0xcc/0xe4 [ 213.888593][ T6593] el0t_64_sync+0x1a0/0x1a4 [ 213.889904][ T6593] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.892151][ T6593] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.135394][ T6596] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.136868][ T6596] CPU: 1 PID: 6596 Comm: syz.1.628 Not tainted syzkaller #0 [ 214.138062][ T6596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.139703][ T6596] Call trace: [ 214.140224][ T6596] dump_backtrace+0x0/0x458 [ 214.140998][ T6596] show_stack+0x2c/0x3c [ 214.141700][ T6596] __dump_stack+0x30/0x40 [ 214.142431][ T6596] dump_stack_lvl+0xf4/0x15c [ 214.143265][ T6596] dump_stack+0x1c/0x5c [ 214.143992][ T6596] sysfs_create_dir_ns+0x244/0x264 [ 214.144943][ T6596] kobject_add_internal+0x594/0xc2c [ 214.145841][ T6596] kobject_init_and_add+0x128/0x194 [ 214.146747][ T6596] gfs2_sys_fs_add+0x208/0x428 [ 214.147572][ T6596] gfs2_fill_super+0xe20/0x1a9c [ 214.148391][ T6596] get_tree_bdev+0x35c/0x54c [ 214.149214][ T6596] gfs2_get_tree+0x58/0x1b8 [ 214.149972][ T6596] vfs_get_tree+0x90/0x278 [ 214.150752][ T6596] do_new_mount+0x228/0x804 [ 214.151511][ T6596] path_mount+0x57c/0xfe8 [ 214.152254][ T6596] __arm64_sys_mount+0x488/0x5f8 [ 214.153138][ T6596] invoke_syscall+0x98/0x28c [ 214.153992][ T6596] el0_svc_common+0x13c/0x258 [ 214.154798][ T6596] do_el0_svc+0x5c/0x140 [ 214.155509][ T6596] el0_svc+0x78/0x1d0 [ 214.156192][ T6596] el0t_64_sync_handler+0xcc/0xe4 [ 214.157006][ T6596] el0t_64_sync+0x1a0/0x1a4 [ 214.173727][ T6596] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.176124][ T6596] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.337780][ T4175] Bluetooth: hci2: command 0x041b tx timeout [ 214.560610][ T6599] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.561951][ T6599] CPU: 0 PID: 6599 Comm: syz.1.629 Not tainted syzkaller #0 [ 214.563062][ T6599] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.564614][ T6599] Call trace: [ 214.565107][ T6599] dump_backtrace+0x0/0x458 [ 214.565824][ T6599] show_stack+0x2c/0x3c [ 214.566502][ T6599] __dump_stack+0x30/0x40 [ 214.567218][ T6599] dump_stack_lvl+0xf4/0x15c [ 214.568041][ T6599] dump_stack+0x1c/0x5c [ 214.568763][ T6599] sysfs_create_dir_ns+0x244/0x264 [ 214.569632][ T6599] kobject_add_internal+0x594/0xc2c [ 214.570529][ T6599] kobject_init_and_add+0x128/0x194 [ 214.571430][ T6599] gfs2_sys_fs_add+0x208/0x428 [ 214.572283][ T6599] gfs2_fill_super+0xe20/0x1a9c [ 214.573165][ T6599] get_tree_bdev+0x35c/0x54c [ 214.574095][ T6599] gfs2_get_tree+0x58/0x1b8 [ 214.574872][ T6599] vfs_get_tree+0x90/0x278 [ 214.575636][ T6599] do_new_mount+0x228/0x804 [ 214.576439][ T6599] path_mount+0x57c/0xfe8 [ 214.577166][ T6599] __arm64_sys_mount+0x488/0x5f8 [ 214.578028][ T6599] invoke_syscall+0x98/0x28c [ 214.578808][ T6599] el0_svc_common+0x13c/0x258 [ 214.579679][ T6599] do_el0_svc+0x5c/0x140 [ 214.580389][ T6599] el0_svc+0x78/0x1d0 [ 214.581106][ T6599] el0t_64_sync_handler+0xcc/0xe4 [ 214.582250][ T6599] el0t_64_sync+0x1a0/0x1a4 [ 214.583324][ T6599] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.585514][ T6599] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.825213][ T6602] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.826591][ T6602] CPU: 1 PID: 6602 Comm: syz.1.630 Not tainted syzkaller #0 [ 214.827785][ T6602] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 214.829454][ T6602] Call trace: [ 214.830042][ T6602] dump_backtrace+0x0/0x458 [ 214.830875][ T6602] show_stack+0x2c/0x3c [ 214.831731][ T6602] __dump_stack+0x30/0x40 [ 214.832595][ T6602] dump_stack_lvl+0xf4/0x15c [ 214.833367][ T6602] dump_stack+0x1c/0x5c [ 214.834103][ T6602] sysfs_create_dir_ns+0x244/0x264 [ 214.834952][ T6602] kobject_add_internal+0x594/0xc2c [ 214.835792][ T6602] kobject_init_and_add+0x128/0x194 [ 214.836660][ T6602] gfs2_sys_fs_add+0x208/0x428 [ 214.837445][ T6602] gfs2_fill_super+0xe20/0x1a9c [ 214.838265][ T6602] get_tree_bdev+0x35c/0x54c [ 214.839023][ T6602] gfs2_get_tree+0x58/0x1b8 [ 214.839802][ T6602] vfs_get_tree+0x90/0x278 [ 214.840660][ T6602] do_new_mount+0x228/0x804 [ 214.841431][ T6602] path_mount+0x57c/0xfe8 [ 214.842182][ T6602] __arm64_sys_mount+0x488/0x5f8 [ 214.843050][ T6602] invoke_syscall+0x98/0x28c [ 214.843855][ T6602] el0_svc_common+0x13c/0x258 [ 214.844671][ T6602] do_el0_svc+0x5c/0x140 [ 214.845422][ T6602] el0_svc+0x78/0x1d0 [ 214.846118][ T6602] el0t_64_sync_handler+0xcc/0xe4 [ 214.846959][ T6602] el0t_64_sync+0x1a0/0x1a4 [ 214.850591][ T6602] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.852776][ T6602] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.089279][ T6605] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.090667][ T6605] CPU: 0 PID: 6605 Comm: syz.1.631 Not tainted syzkaller #0 [ 215.091882][ T6605] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.093535][ T6605] Call trace: [ 215.094016][ T6605] dump_backtrace+0x0/0x458 [ 215.094718][ T6605] show_stack+0x2c/0x3c [ 215.095401][ T6605] __dump_stack+0x30/0x40 [ 215.096126][ T6605] dump_stack_lvl+0xf4/0x15c [ 215.096943][ T6605] dump_stack+0x1c/0x5c [ 215.097637][ T6605] sysfs_create_dir_ns+0x244/0x264 [ 215.098578][ T6605] kobject_add_internal+0x594/0xc2c [ 215.099578][ T6605] kobject_init_and_add+0x128/0x194 [ 215.100559][ T6605] gfs2_sys_fs_add+0x208/0x428 [ 215.101372][ T6605] gfs2_fill_super+0xe20/0x1a9c [ 215.102259][ T6605] get_tree_bdev+0x35c/0x54c [ 215.103081][ T6605] gfs2_get_tree+0x58/0x1b8 [ 215.103889][ T6605] vfs_get_tree+0x90/0x278 [ 215.104666][ T6605] do_new_mount+0x228/0x804 [ 215.105429][ T6605] path_mount+0x57c/0xfe8 [ 215.106161][ T6605] __arm64_sys_mount+0x488/0x5f8 [ 215.106981][ T6605] invoke_syscall+0x98/0x28c [ 215.107750][ T6605] el0_svc_common+0x13c/0x258 [ 215.108566][ T6605] do_el0_svc+0x5c/0x140 [ 215.109300][ T6605] el0_svc+0x78/0x1d0 [ 215.109964][ T6605] el0t_64_sync_handler+0xcc/0xe4 [ 215.110868][ T6605] el0t_64_sync+0x1a0/0x1a4 [ 215.112218][ T6605] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.114387][ T6605] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.299255][ T6608] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.300791][ T6608] CPU: 1 PID: 6608 Comm: syz.1.632 Not tainted syzkaller #0 [ 215.301899][ T6608] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.303551][ T6608] Call trace: [ 215.304106][ T6608] dump_backtrace+0x0/0x458 [ 215.304825][ T6608] show_stack+0x2c/0x3c [ 215.305509][ T6608] __dump_stack+0x30/0x40 [ 215.306257][ T6608] dump_stack_lvl+0xf4/0x15c [ 215.307035][ T6608] dump_stack+0x1c/0x5c [ 215.307751][ T6608] sysfs_create_dir_ns+0x244/0x264 [ 215.308798][ T6608] kobject_add_internal+0x594/0xc2c [ 215.309850][ T6608] kobject_init_and_add+0x128/0x194 [ 215.310743][ T6608] gfs2_sys_fs_add+0x208/0x428 [ 215.311551][ T6608] gfs2_fill_super+0xe20/0x1a9c [ 215.312475][ T6608] get_tree_bdev+0x35c/0x54c [ 215.313299][ T6608] gfs2_get_tree+0x58/0x1b8 [ 215.313910][ T6608] vfs_get_tree+0x90/0x278 [ 215.314540][ T6608] do_new_mount+0x228/0x804 [ 215.315320][ T6608] path_mount+0x57c/0xfe8 [ 215.316043][ T6608] __arm64_sys_mount+0x488/0x5f8 [ 215.316900][ T6608] invoke_syscall+0x98/0x28c [ 215.317659][ T6608] el0_svc_common+0x13c/0x258 [ 215.318506][ T6608] do_el0_svc+0x5c/0x140 [ 215.319247][ T6608] el0_svc+0x78/0x1d0 [ 215.319942][ T6608] el0t_64_sync_handler+0xcc/0xe4 [ 215.320808][ T6608] el0t_64_sync+0x1a0/0x1a4 [ 215.323257][ T6608] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.325250][ T6608] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.503080][ T6611] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.504520][ T6611] CPU: 1 PID: 6611 Comm: syz.1.633 Not tainted syzkaller #0 [ 215.505760][ T6611] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.507515][ T6611] Call trace: [ 215.508059][ T6611] dump_backtrace+0x0/0x458 [ 215.508868][ T6611] show_stack+0x2c/0x3c [ 215.509588][ T6611] __dump_stack+0x30/0x40 [ 215.510316][ T6611] dump_stack_lvl+0xf4/0x15c [ 215.511092][ T6611] dump_stack+0x1c/0x5c [ 215.511792][ T6611] sysfs_create_dir_ns+0x244/0x264 [ 215.512663][ T6611] kobject_add_internal+0x594/0xc2c [ 215.513549][ T6611] kobject_init_and_add+0x128/0x194 [ 215.514436][ T6611] gfs2_sys_fs_add+0x208/0x428 [ 215.515197][ T6611] gfs2_fill_super+0xe20/0x1a9c [ 215.515989][ T6611] get_tree_bdev+0x35c/0x54c [ 215.516701][ T6611] gfs2_get_tree+0x58/0x1b8 [ 215.517390][ T6611] vfs_get_tree+0x90/0x278 [ 215.518083][ T6611] do_new_mount+0x228/0x804 [ 215.518934][ T6611] path_mount+0x57c/0xfe8 [ 215.519659][ T6611] __arm64_sys_mount+0x488/0x5f8 [ 215.520514][ T6611] invoke_syscall+0x98/0x28c [ 215.521331][ T6611] el0_svc_common+0x13c/0x258 [ 215.522106][ T6611] do_el0_svc+0x5c/0x140 [ 215.522813][ T6611] el0_svc+0x78/0x1d0 [ 215.523456][ T6611] el0t_64_sync_handler+0xcc/0xe4 [ 215.524279][ T6611] el0t_64_sync+0x1a0/0x1a4 [ 215.526940][ T6611] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.530217][ T6611] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.692765][ T6614] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.695370][ T6614] CPU: 1 PID: 6614 Comm: syz.1.634 Not tainted syzkaller #0 [ 215.696682][ T6614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 215.698358][ T6614] Call trace: [ 215.698910][ T6614] dump_backtrace+0x0/0x458 [ 215.699657][ T6614] show_stack+0x2c/0x3c [ 215.700389][ T6614] __dump_stack+0x30/0x40 [ 215.701111][ T6614] dump_stack_lvl+0xf4/0x15c [ 215.702003][ T6614] dump_stack+0x1c/0x5c [ 215.702749][ T6614] sysfs_create_dir_ns+0x244/0x264 [ 215.703718][ T6614] kobject_add_internal+0x594/0xc2c [ 215.704679][ T6614] kobject_init_and_add+0x128/0x194 [ 215.705722][ T6614] gfs2_sys_fs_add+0x208/0x428 [ 215.706707][ T6614] gfs2_fill_super+0xe20/0x1a9c [ 215.707635][ T6614] get_tree_bdev+0x35c/0x54c [ 215.708378][ T6614] gfs2_get_tree+0x58/0x1b8 [ 215.709129][ T6614] vfs_get_tree+0x90/0x278 [ 215.709866][ T6614] do_new_mount+0x228/0x804 [ 215.710660][ T6614] path_mount+0x57c/0xfe8 [ 215.711399][ T6614] __arm64_sys_mount+0x488/0x5f8 [ 215.712286][ T6614] invoke_syscall+0x98/0x28c [ 215.713059][ T6614] el0_svc_common+0x13c/0x258 [ 215.713818][ T6614] do_el0_svc+0x5c/0x140 [ 215.714505][ T6614] el0_svc+0x78/0x1d0 [ 215.715148][ T6614] el0t_64_sync_handler+0xcc/0xe4 [ 215.716034][ T6614] el0t_64_sync+0x1a0/0x1a4 [ 215.717053][ T6614] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.719265][ T6614] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.004150][ T6617] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.005354][ T6617] CPU: 1 PID: 6617 Comm: syz.1.635 Not tainted syzkaller #0 [ 216.006442][ T6617] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.007974][ T6617] Call trace: [ 216.008542][ T6617] dump_backtrace+0x0/0x458 [ 216.009318][ T6617] show_stack+0x2c/0x3c [ 216.010016][ T6617] __dump_stack+0x30/0x40 [ 216.010702][ T6617] dump_stack_lvl+0xf4/0x15c [ 216.011458][ T6617] dump_stack+0x1c/0x5c [ 216.012162][ T6617] sysfs_create_dir_ns+0x244/0x264 [ 216.013037][ T6617] kobject_add_internal+0x594/0xc2c [ 216.013994][ T6617] kobject_init_and_add+0x128/0x194 [ 216.014885][ T6617] gfs2_sys_fs_add+0x208/0x428 [ 216.015712][ T6617] gfs2_fill_super+0xe20/0x1a9c [ 216.016536][ T6617] get_tree_bdev+0x35c/0x54c [ 216.017268][ T6617] gfs2_get_tree+0x58/0x1b8 [ 216.017978][ T6617] vfs_get_tree+0x90/0x278 [ 216.018730][ T6617] do_new_mount+0x228/0x804 [ 216.019493][ T6617] path_mount+0x57c/0xfe8 [ 216.020186][ T6617] __arm64_sys_mount+0x488/0x5f8 [ 216.020981][ T6617] invoke_syscall+0x98/0x28c [ 216.021744][ T6617] el0_svc_common+0x13c/0x258 [ 216.022499][ T6617] do_el0_svc+0x5c/0x140 [ 216.023191][ T6617] el0_svc+0x78/0x1d0 [ 216.023870][ T6617] el0t_64_sync_handler+0xcc/0xe4 [ 216.024735][ T6617] el0t_64_sync+0x1a0/0x1a4 [ 216.026621][ T6617] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.029641][ T6617] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.189262][ T6620] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.190563][ T6620] CPU: 1 PID: 6620 Comm: syz.1.636 Not tainted syzkaller #0 [ 216.191714][ T6620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.193306][ T6620] Call trace: [ 216.193877][ T6620] dump_backtrace+0x0/0x458 [ 216.194647][ T6620] show_stack+0x2c/0x3c [ 216.195263][ T6620] __dump_stack+0x30/0x40 [ 216.195921][ T6620] dump_stack_lvl+0xf4/0x15c [ 216.196711][ T6620] dump_stack+0x1c/0x5c [ 216.197314][ T6620] sysfs_create_dir_ns+0x244/0x264 [ 216.198157][ T6620] kobject_add_internal+0x594/0xc2c [ 216.199028][ T6620] kobject_init_and_add+0x128/0x194 [ 216.199918][ T6620] gfs2_sys_fs_add+0x208/0x428 [ 216.200772][ T6620] gfs2_fill_super+0xe20/0x1a9c [ 216.201635][ T6620] get_tree_bdev+0x35c/0x54c [ 216.202415][ T6620] gfs2_get_tree+0x58/0x1b8 [ 216.203199][ T6620] vfs_get_tree+0x90/0x278 [ 216.203909][ T6620] do_new_mount+0x228/0x804 [ 216.204637][ T6620] path_mount+0x57c/0xfe8 [ 216.205322][ T6620] __arm64_sys_mount+0x488/0x5f8 [ 216.206147][ T6620] invoke_syscall+0x98/0x28c [ 216.206912][ T6620] el0_svc_common+0x13c/0x258 [ 216.207712][ T6620] do_el0_svc+0x5c/0x140 [ 216.208410][ T6620] el0_svc+0x78/0x1d0 [ 216.209081][ T6620] el0t_64_sync_handler+0xcc/0xe4 [ 216.209921][ T6620] el0t_64_sync+0x1a0/0x1a4 [ 216.211714][ T6620] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.214085][ T6620] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.411495][ T4175] Bluetooth: hci2: command 0x040f tx timeout [ 216.502655][ T6623] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.503971][ T6623] CPU: 1 PID: 6623 Comm: syz.1.637 Not tainted syzkaller #0 [ 216.505184][ T6623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.506819][ T6623] Call trace: [ 216.507350][ T6623] dump_backtrace+0x0/0x458 [ 216.508098][ T6623] show_stack+0x2c/0x3c [ 216.508792][ T6623] __dump_stack+0x30/0x40 [ 216.509560][ T6623] dump_stack_lvl+0xf4/0x15c [ 216.510369][ T6623] dump_stack+0x1c/0x5c [ 216.511096][ T6623] sysfs_create_dir_ns+0x244/0x264 [ 216.511999][ T6623] kobject_add_internal+0x594/0xc2c [ 216.512950][ T6623] kobject_init_and_add+0x128/0x194 [ 216.513933][ T6623] gfs2_sys_fs_add+0x208/0x428 [ 216.514780][ T6623] gfs2_fill_super+0xe20/0x1a9c [ 216.515654][ T6623] get_tree_bdev+0x35c/0x54c [ 216.516446][ T6623] gfs2_get_tree+0x58/0x1b8 [ 216.517236][ T6623] vfs_get_tree+0x90/0x278 [ 216.518041][ T6623] do_new_mount+0x228/0x804 [ 216.518813][ T6623] path_mount+0x57c/0xfe8 [ 216.519569][ T6623] __arm64_sys_mount+0x488/0x5f8 [ 216.520427][ T6623] invoke_syscall+0x98/0x28c [ 216.521198][ T6623] el0_svc_common+0x13c/0x258 [ 216.521953][ T6623] do_el0_svc+0x5c/0x140 [ 216.522697][ T6623] el0_svc+0x78/0x1d0 [ 216.523357][ T6623] el0t_64_sync_handler+0xcc/0xe4 [ 216.524242][ T6623] el0t_64_sync+0x1a0/0x1a4 [ 216.526423][ T6623] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.528655][ T6623] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.699089][ T6626] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.700545][ T6626] CPU: 1 PID: 6626 Comm: syz.1.638 Not tainted syzkaller #0 [ 216.701798][ T6626] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.703406][ T6626] Call trace: [ 216.703933][ T6626] dump_backtrace+0x0/0x458 [ 216.704692][ T6626] show_stack+0x2c/0x3c [ 216.705381][ T6626] __dump_stack+0x30/0x40 [ 216.706103][ T6626] dump_stack_lvl+0xf4/0x15c [ 216.706866][ T6626] dump_stack+0x1c/0x5c [ 216.707518][ T6626] sysfs_create_dir_ns+0x244/0x264 [ 216.708391][ T6626] kobject_add_internal+0x594/0xc2c [ 216.709265][ T6626] kobject_init_and_add+0x128/0x194 [ 216.710148][ T6626] gfs2_sys_fs_add+0x208/0x428 [ 216.710967][ T6626] gfs2_fill_super+0xe20/0x1a9c [ 216.711800][ T6626] get_tree_bdev+0x35c/0x54c [ 216.712590][ T6626] gfs2_get_tree+0x58/0x1b8 [ 216.713380][ T6626] vfs_get_tree+0x90/0x278 [ 216.714119][ T6626] do_new_mount+0x228/0x804 [ 216.714898][ T6626] path_mount+0x57c/0xfe8 [ 216.715609][ T6626] __arm64_sys_mount+0x488/0x5f8 [ 216.716441][ T6626] invoke_syscall+0x98/0x28c [ 216.717207][ T6626] el0_svc_common+0x13c/0x258 [ 216.718026][ T6626] do_el0_svc+0x5c/0x140 [ 216.718759][ T6626] el0_svc+0x78/0x1d0 [ 216.719483][ T6626] el0t_64_sync_handler+0xcc/0xe4 [ 216.720377][ T6626] el0t_64_sync+0x1a0/0x1a4 [ 216.722691][ T6626] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.724996][ T6626] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:36 executed programs: 625 [ 216.859114][ T6629] set_capacity_and_notify: 11 callbacks suppressed [ 216.859125][ T6629] loop1: detected capacity change from 0 to 32768 [ 216.922344][ T6629] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.923623][ T6629] CPU: 1 PID: 6629 Comm: syz.1.639 Not tainted syzkaller #0 [ 216.924759][ T6629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 216.926304][ T6629] Call trace: [ 216.926820][ T6629] dump_backtrace+0x0/0x458 [ 216.927493][ T6629] show_stack+0x2c/0x3c [ 216.928170][ T6629] __dump_stack+0x30/0x40 [ 216.928871][ T6629] dump_stack_lvl+0xf4/0x15c [ 216.929634][ T6629] dump_stack+0x1c/0x5c [ 216.930373][ T6629] sysfs_create_dir_ns+0x244/0x264 [ 216.931288][ T6629] kobject_add_internal+0x594/0xc2c [ 216.932203][ T6629] kobject_init_and_add+0x128/0x194 [ 216.933054][ T6629] gfs2_sys_fs_add+0x208/0x428 [ 216.933910][ T6629] gfs2_fill_super+0xe20/0x1a9c [ 216.934749][ T6629] get_tree_bdev+0x35c/0x54c [ 216.935510][ T6629] gfs2_get_tree+0x58/0x1b8 [ 216.936442][ T6629] vfs_get_tree+0x90/0x278 [ 216.937140][ T6629] do_new_mount+0x228/0x804 [ 216.937877][ T6629] path_mount+0x57c/0xfe8 [ 216.938653][ T6629] __arm64_sys_mount+0x488/0x5f8 [ 216.939458][ T6629] invoke_syscall+0x98/0x28c [ 216.940225][ T6629] el0_svc_common+0x13c/0x258 [ 216.941012][ T6629] do_el0_svc+0x5c/0x140 [ 216.941698][ T6629] el0_svc+0x78/0x1d0 [ 216.942332][ T6629] el0t_64_sync_handler+0xcc/0xe4 [ 216.943171][ T6629] el0t_64_sync+0x1a0/0x1a4 [ 216.945447][ T6629] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.947588][ T6629] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.082277][ T6632] loop1: detected capacity change from 0 to 32768 [ 217.152717][ T6632] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.154179][ T6632] CPU: 0 PID: 6632 Comm: syz.1.640 Not tainted syzkaller #0 [ 217.155458][ T6632] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.157189][ T6632] Call trace: [ 217.157800][ T6632] dump_backtrace+0x0/0x458 [ 217.158689][ T6632] show_stack+0x2c/0x3c [ 217.159410][ T6632] __dump_stack+0x30/0x40 [ 217.160160][ T6632] dump_stack_lvl+0xf4/0x15c [ 217.160988][ T6632] dump_stack+0x1c/0x5c [ 217.161741][ T6632] sysfs_create_dir_ns+0x244/0x264 [ 217.162620][ T6632] kobject_add_internal+0x594/0xc2c [ 217.163489][ T6632] kobject_init_and_add+0x128/0x194 [ 217.164382][ T6632] gfs2_sys_fs_add+0x208/0x428 [ 217.165150][ T6632] gfs2_fill_super+0xe20/0x1a9c [ 217.165926][ T6632] get_tree_bdev+0x35c/0x54c [ 217.166653][ T6632] gfs2_get_tree+0x58/0x1b8 [ 217.167378][ T6632] vfs_get_tree+0x90/0x278 [ 217.168120][ T6632] do_new_mount+0x228/0x804 [ 217.168834][ T6632] path_mount+0x57c/0xfe8 [ 217.169580][ T6632] __arm64_sys_mount+0x488/0x5f8 [ 217.170468][ T6632] invoke_syscall+0x98/0x28c [ 217.171254][ T6632] el0_svc_common+0x13c/0x258 [ 217.172074][ T6632] do_el0_svc+0x5c/0x140 [ 217.172758][ T6632] el0_svc+0x78/0x1d0 [ 217.173409][ T6632] el0t_64_sync_handler+0xcc/0xe4 [ 217.174336][ T6632] el0t_64_sync+0x1a0/0x1a4 [ 217.176813][ T6632] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.179194][ T6632] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.316148][ T6635] loop1: detected capacity change from 0 to 32768 [ 217.355109][ T6635] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.356488][ T6635] CPU: 1 PID: 6635 Comm: syz.1.641 Not tainted syzkaller #0 [ 217.357821][ T6635] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.359619][ T6635] Call trace: [ 217.360186][ T6635] dump_backtrace+0x0/0x458 [ 217.361028][ T6635] show_stack+0x2c/0x3c [ 217.361719][ T6635] __dump_stack+0x30/0x40 [ 217.362407][ T6635] dump_stack_lvl+0xf4/0x15c [ 217.363137][ T6635] dump_stack+0x1c/0x5c [ 217.363840][ T6635] sysfs_create_dir_ns+0x244/0x264 [ 217.364721][ T6635] kobject_add_internal+0x594/0xc2c [ 217.365590][ T6635] kobject_init_and_add+0x128/0x194 [ 217.366455][ T6635] gfs2_sys_fs_add+0x208/0x428 [ 217.367289][ T6635] gfs2_fill_super+0xe20/0x1a9c [ 217.368114][ T6635] get_tree_bdev+0x35c/0x54c [ 217.368907][ T6635] gfs2_get_tree+0x58/0x1b8 [ 217.369795][ T6635] vfs_get_tree+0x90/0x278 [ 217.370525][ T6635] do_new_mount+0x228/0x804 [ 217.371294][ T6635] path_mount+0x57c/0xfe8 [ 217.372032][ T6635] __arm64_sys_mount+0x488/0x5f8 [ 217.372874][ T6635] invoke_syscall+0x98/0x28c [ 217.373616][ T6635] el0_svc_common+0x13c/0x258 [ 217.374422][ T6635] do_el0_svc+0x5c/0x140 [ 217.375149][ T6635] el0_svc+0x78/0x1d0 [ 217.375832][ T6635] el0t_64_sync_handler+0xcc/0xe4 [ 217.376753][ T6635] el0t_64_sync+0x1a0/0x1a4 [ 217.379746][ T6635] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.381884][ T6635] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.448736][ T27] INFO: task syz-executor:4655 blocked for more than 143 seconds. [ 217.450171][ T27] Not tainted syzkaller #0 [ 217.450928][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 217.452274][ T27] task:syz-executor state:D stack: 0 pid: 4655 ppid: 1 flags:0x00000001 [ 217.453748][ T27] Call trace: [ 217.454297][ T27] __switch_to+0x2f4/0x540 [ 217.455004][ T27] __schedule+0xe20/0x1c6c [ 217.455724][ T27] schedule+0x11c/0x1c8 [ 217.456369][ T27] bit_wait+0x1c/0xac [ 217.457031][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 217.467748][ T27] gfs2_glock_nq+0x8dc/0x13d0 [ 217.468503][ T27] __gfs2_lookup+0x120/0x28c [ 217.469237][ T27] gfs2_lookup+0x2c/0x3c [ 217.469917][ T27] __lookup_slow+0x25c/0x39c [ 217.470622][ T27] lookup_slow+0x60/0x84 [ 217.471273][ T27] walk_component+0x2b8/0x3b8 [ 217.472002][ T27] path_lookupat+0x168/0x3f0 [ 217.472681][ T27] filename_lookup+0x1c8/0x478 [ 217.473487][ T27] user_path_at_empty+0x5c/0x1a0 [ 217.474273][ T27] __arm64_sys_umount+0xf8/0x184 [ 217.475070][ T27] invoke_syscall+0x98/0x28c [ 217.475790][ T27] el0_svc_common+0x13c/0x258 [ 217.476488][ T27] do_el0_svc+0x5c/0x140 [ 217.477177][ T27] el0_svc+0x78/0x1d0 [ 217.478635][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 217.479466][ T27] el0t_64_sync+0x1a0/0x1a4 [ 217.480398][ T27] [ 217.480398][ T27] Showing all locks held in the system: [ 217.481599][ T27] 1 lock held by khungtaskd/27: [ 217.482382][ T27] #0: ffff800014571460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 217.484046][ T27] 2 locks held by getty/3800: [ 217.484816][ T27] #0: ffff0000d4f03098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 217.486577][ T27] #1: ffff80001bf7e2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 217.488831][ T27] 3 locks held by kworker/1:9/4167: [ 217.489743][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 217.491443][ T27] #1: ffff80001fd17c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 217.493472][ T27] #2: ffff0000c25c2240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x27c4 [ 217.495249][ T27] 2 locks held by kworker/0:9/4257: [ 217.496101][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 217.498385][ T27] #1: ffff80001f6d7c40 ((work_completion)(&pwq->unbound_release_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 217.500287][ T27] 1 lock held by syz-executor/4655: [ 217.501159][ T27] #0: ffff0000e28c0818 (&type->i_mutex_dir_key#8){.+.+}-{3:3}, at: lookup_slow+0x50/0x84 [ 217.502757][ T27] 2 locks held by syz.1.642/6638: [ 217.503582][ T27] [ 217.503946][ T27] ============================================= [ 217.503946][ T27] [ 217.505260][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 217.506310][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 217.507497][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/02/2026 [ 217.509169][ T27] Call trace: [ 217.509691][ T27] dump_backtrace+0x0/0x458 [ 217.510457][ T27] show_stack+0x2c/0x3c [ 217.511171][ T27] __dump_stack+0x30/0x40 [ 217.511902][ T27] dump_stack_lvl+0xf4/0x15c [ 217.512732][ T27] dump_stack+0x1c/0x5c [ 217.513426][ T27] panic+0x2fc/0x860 [ 217.514097][ T27] hung_task_panic+0x0/0x2c [ 217.514846][ T27] kthread+0x37c/0x460 [ 217.515530][ T27] ret_from_fork+0x10/0x20 [ 217.516290][ T27] SMP: stopping secondary CPUs [ 217.517063][ T27] Kernel Offset: disabled [ 217.517755][ T27] CPU features: 0xa,000003c1,7d33ffd9 [ 217.518679][ T27] Memory Limit: none [ 217.849199][ T27] Rebooting in 86400 seconds..