5976] invoke_syscall+0x98/0x28c [ 197.723327][ T5976] el0_svc_common+0x13c/0x258 [ 197.724277][ T5976] do_el0_svc+0x5c/0x140 [ 197.725135][ T5976] el0_svc+0x78/0x1d0 [ 197.725883][ T5976] el0t_64_sync_handler+0xcc/0xe4 [ 197.726749][ T5976] el0t_64_sync+0x1a0/0x1a4 [ 197.728944][ T5976] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.731312][ T5976] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 197.907592][ T5978] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 197.908944][ T5978] CPU: 1 PID: 5978 Comm: syz.1.551 Not tainted syzkaller #0 [ 197.910254][ T5978] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 197.912057][ T5978] Call trace: [ 197.912580][ T5978] dump_backtrace+0x0/0x458 [ 197.913400][ T5978] show_stack+0x2c/0x3c [ 197.914192][ T5978] __dump_stack+0x30/0x40 [ 197.915005][ T5978] dump_stack_lvl+0xf4/0x15c [ 197.915862][ T5978] dump_stack+0x1c/0x5c [ 197.916603][ T5978] sysfs_create_dir_ns+0x244/0x264 [ 197.917527][ T5978] kobject_add_internal+0x594/0xc2c [ 197.918467][ T5978] kobject_init_and_add+0x128/0x194 [ 197.919493][ T5978] gfs2_sys_fs_add+0x208/0x428 [ 197.920318][ T5978] gfs2_fill_super+0xe20/0x1a9c [ 197.921192][ T5978] get_tree_bdev+0x35c/0x54c [ 197.922015][ T5978] gfs2_get_tree+0x58/0x1b8 [ 197.922962][ T5978] vfs_get_tree+0x90/0x278 [ 197.923855][ T5978] do_new_mount+0x228/0x804 [ 197.924765][ T5978] path_mount+0x57c/0xfe8 [ 197.925657][ T5978] __arm64_sys_mount+0x488/0x5f8 [ 197.926642][ T5978] invoke_syscall+0x98/0x28c [ 197.927588][ T5978] el0_svc_common+0x13c/0x258 [ 197.928548][ T5978] do_el0_svc+0x5c/0x140 [ 197.929387][ T5978] el0_svc+0x78/0x1d0 [ 197.930179][ T5978] el0t_64_sync_handler+0xcc/0xe4 [ 197.931148][ T5978] el0t_64_sync+0x1a0/0x1a4 [ 197.932190][ T5978] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 197.934299][ T5978] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.149506][ T5980] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.150860][ T5980] CPU: 0 PID: 5980 Comm: syz.1.552 Not tainted syzkaller #0 [ 198.152130][ T5980] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 198.153955][ T5980] Call trace: [ 198.154533][ T5980] dump_backtrace+0x0/0x458 [ 198.155389][ T5980] show_stack+0x2c/0x3c [ 198.156176][ T5980] __dump_stack+0x30/0x40 [ 198.156994][ T5980] dump_stack_lvl+0xf4/0x15c [ 198.157811][ T5980] dump_stack+0x1c/0x5c [ 198.158477][ T5980] sysfs_create_dir_ns+0x244/0x264 [ 198.159421][ T5980] kobject_add_internal+0x594/0xc2c [ 198.160396][ T5980] kobject_init_and_add+0x128/0x194 [ 198.161375][ T5980] gfs2_sys_fs_add+0x208/0x428 [ 198.162250][ T5980] gfs2_fill_super+0xe20/0x1a9c [ 198.163105][ T5980] get_tree_bdev+0x35c/0x54c [ 198.163835][ T5980] gfs2_get_tree+0x58/0x1b8 [ 198.164557][ T5980] vfs_get_tree+0x90/0x278 [ 198.165313][ T5980] do_new_mount+0x228/0x804 [ 198.166103][ T5980] path_mount+0x57c/0xfe8 [ 198.166837][ T5980] __arm64_sys_mount+0x488/0x5f8 [ 198.167657][ T5980] invoke_syscall+0x98/0x28c [ 198.168457][ T5980] el0_svc_common+0x13c/0x258 [ 198.169269][ T5980] do_el0_svc+0x5c/0x140 [ 198.169998][ T5980] el0_svc+0x78/0x1d0 [ 198.170692][ T5980] el0t_64_sync_handler+0xcc/0xe4 [ 198.171561][ T5980] el0t_64_sync+0x1a0/0x1a4 [ 198.172745][ T5980] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.174955][ T5980] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:18 executed programs: 539 [ 198.305825][ T5982] set_capacity_and_notify: 13 callbacks suppressed [ 198.305835][ T5982] loop1: detected capacity change from 0 to 32768 [ 198.397315][ T5982] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.398737][ T5982] CPU: 1 PID: 5982 Comm: syz.1.553 Not tainted syzkaller #0 [ 198.399964][ T5982] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 198.401595][ T5982] Call trace: [ 198.402152][ T5982] dump_backtrace+0x0/0x458 [ 198.402910][ T5982] show_stack+0x2c/0x3c [ 198.403548][ T5982] __dump_stack+0x30/0x40 [ 198.404241][ T5982] dump_stack_lvl+0xf4/0x15c [ 198.404972][ T5982] dump_stack+0x1c/0x5c [ 198.405622][ T5982] sysfs_create_dir_ns+0x244/0x264 [ 198.406490][ T5982] kobject_add_internal+0x594/0xc2c [ 198.407420][ T5982] kobject_init_and_add+0x128/0x194 [ 198.408391][ T5982] gfs2_sys_fs_add+0x208/0x428 [ 198.409245][ T5982] gfs2_fill_super+0xe20/0x1a9c [ 198.410125][ T5982] get_tree_bdev+0x35c/0x54c [ 198.410926][ T5982] gfs2_get_tree+0x58/0x1b8 [ 198.411695][ T5982] vfs_get_tree+0x90/0x278 [ 198.412462][ T5982] do_new_mount+0x228/0x804 [ 198.413212][ T5982] path_mount+0x57c/0xfe8 [ 198.413960][ T5982] __arm64_sys_mount+0x488/0x5f8 [ 198.414786][ T5982] invoke_syscall+0x98/0x28c [ 198.415584][ T5982] el0_svc_common+0x13c/0x258 [ 198.416381][ T5982] do_el0_svc+0x5c/0x140 [ 198.417119][ T5982] el0_svc+0x78/0x1d0 [ 198.417812][ T5982] el0t_64_sync_handler+0xcc/0xe4 [ 198.418700][ T5982] el0t_64_sync+0x1a0/0x1a4 [ 198.420849][ T5982] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.422961][ T5982] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.622703][ T5985] loop1: detected capacity change from 0 to 32768 [ 198.661788][ T5985] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.663009][ T5985] CPU: 1 PID: 5985 Comm: syz.1.554 Not tainted syzkaller #0 [ 198.664162][ T5985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 198.665851][ T5985] Call trace: [ 198.666399][ T5985] dump_backtrace+0x0/0x458 [ 198.667166][ T5985] show_stack+0x2c/0x3c [ 198.667877][ T5985] __dump_stack+0x30/0x40 [ 198.668651][ T5985] dump_stack_lvl+0xf4/0x15c [ 198.669501][ T5985] dump_stack+0x1c/0x5c [ 198.670244][ T5985] sysfs_create_dir_ns+0x244/0x264 [ 198.671137][ T5985] kobject_add_internal+0x594/0xc2c [ 198.672064][ T5985] kobject_init_and_add+0x128/0x194 [ 198.672996][ T5985] gfs2_sys_fs_add+0x208/0x428 [ 198.673883][ T5985] gfs2_fill_super+0xe20/0x1a9c [ 198.674784][ T5985] get_tree_bdev+0x35c/0x54c [ 198.675568][ T5985] gfs2_get_tree+0x58/0x1b8 [ 198.676505][ T5985] vfs_get_tree+0x90/0x278 [ 198.677423][ T5985] do_new_mount+0x228/0x804 [ 198.678331][ T5985] path_mount+0x57c/0xfe8 [ 198.679198][ T5985] __arm64_sys_mount+0x488/0x5f8 [ 198.680165][ T5985] invoke_syscall+0x98/0x28c [ 198.681058][ T5985] el0_svc_common+0x13c/0x258 [ 198.681956][ T5985] do_el0_svc+0x5c/0x140 [ 198.682714][ T5985] el0_svc+0x78/0x1d0 [ 198.683452][ T5985] el0t_64_sync_handler+0xcc/0xe4 [ 198.684377][ T5985] el0t_64_sync+0x1a0/0x1a4 [ 198.685855][ T5985] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.688477][ T5985] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.827027][ T5987] loop1: detected capacity change from 0 to 32768 [ 198.834394][ T5987] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 198.835650][ T5987] CPU: 0 PID: 5987 Comm: syz.1.555 Not tainted syzkaller #0 [ 198.836823][ T5987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 198.838552][ T5987] Call trace: [ 198.839095][ T5987] dump_backtrace+0x0/0x458 [ 198.839870][ T5987] show_stack+0x2c/0x3c [ 198.840580][ T5987] __dump_stack+0x30/0x40 [ 198.841333][ T5987] dump_stack_lvl+0xf4/0x15c [ 198.842258][ T5987] dump_stack+0x1c/0x5c [ 198.843078][ T5987] sysfs_create_dir_ns+0x244/0x264 [ 198.844035][ T5987] kobject_add_internal+0x594/0xc2c [ 198.845019][ T5987] kobject_init_and_add+0x128/0x194 [ 198.846029][ T5987] gfs2_sys_fs_add+0x208/0x428 [ 198.846981][ T5987] gfs2_fill_super+0xe20/0x1a9c [ 198.847838][ T5987] get_tree_bdev+0x35c/0x54c [ 198.848650][ T5987] gfs2_get_tree+0x58/0x1b8 [ 198.849449][ T5987] vfs_get_tree+0x90/0x278 [ 198.850309][ T5987] do_new_mount+0x228/0x804 [ 198.851200][ T5987] path_mount+0x57c/0xfe8 [ 198.852056][ T5987] __arm64_sys_mount+0x488/0x5f8 [ 198.853014][ T5987] invoke_syscall+0x98/0x28c [ 198.853860][ T5987] el0_svc_common+0x13c/0x258 [ 198.854764][ T5987] do_el0_svc+0x5c/0x140 [ 198.855546][ T5987] el0_svc+0x78/0x1d0 [ 198.856340][ T5987] el0t_64_sync_handler+0xcc/0xe4 [ 198.857259][ T5987] el0t_64_sync+0x1a0/0x1a4 [ 198.859599][ T5987] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 198.861924][ T5987] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 198.997067][ T5989] loop1: detected capacity change from 0 to 32768 [ 199.051286][ T5989] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.052515][ T5989] CPU: 0 PID: 5989 Comm: syz.1.556 Not tainted syzkaller #0 [ 199.053687][ T5989] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 199.055286][ T5989] Call trace: [ 199.055805][ T5989] dump_backtrace+0x0/0x458 [ 199.056517][ T5989] show_stack+0x2c/0x3c [ 199.057234][ T5989] __dump_stack+0x30/0x40 [ 199.057979][ T5989] dump_stack_lvl+0xf4/0x15c [ 199.058786][ T5989] dump_stack+0x1c/0x5c [ 199.059510][ T5989] sysfs_create_dir_ns+0x244/0x264 [ 199.060437][ T5989] kobject_add_internal+0x594/0xc2c [ 199.061355][ T5989] kobject_init_and_add+0x128/0x194 [ 199.062263][ T5989] gfs2_sys_fs_add+0x208/0x428 [ 199.063103][ T5989] gfs2_fill_super+0xe20/0x1a9c [ 199.063928][ T5989] get_tree_bdev+0x35c/0x54c [ 199.064747][ T5989] gfs2_get_tree+0x58/0x1b8 [ 199.065515][ T5989] vfs_get_tree+0x90/0x278 [ 199.066304][ T5989] do_new_mount+0x228/0x804 [ 199.067109][ T5989] path_mount+0x57c/0xfe8 [ 199.067897][ T5989] __arm64_sys_mount+0x488/0x5f8 [ 199.068781][ T5989] invoke_syscall+0x98/0x28c [ 199.069602][ T5989] el0_svc_common+0x13c/0x258 [ 199.070358][ T5989] do_el0_svc+0x5c/0x140 [ 199.071087][ T5989] el0_svc+0x78/0x1d0 [ 199.071737][ T5989] el0t_64_sync_handler+0xcc/0xe4 [ 199.072598][ T5989] el0t_64_sync+0x1a0/0x1a4 [ 199.074627][ T5989] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.076904][ T5989] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.209889][ T5991] loop1: detected capacity change from 0 to 32768 [ 199.217498][ T5991] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.218796][ T5991] CPU: 1 PID: 5991 Comm: syz.1.557 Not tainted syzkaller #0 [ 199.220069][ T5991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 199.221780][ T5991] Call trace: [ 199.222348][ T5991] dump_backtrace+0x0/0x458 [ 199.223153][ T5991] show_stack+0x2c/0x3c [ 199.223910][ T5991] __dump_stack+0x30/0x40 [ 199.224663][ T5991] dump_stack_lvl+0xf4/0x15c [ 199.225442][ T5991] dump_stack+0x1c/0x5c [ 199.226184][ T5991] sysfs_create_dir_ns+0x244/0x264 [ 199.227157][ T5991] kobject_add_internal+0x594/0xc2c [ 199.228169][ T5991] kobject_init_and_add+0x128/0x194 [ 199.229196][ T5991] gfs2_sys_fs_add+0x208/0x428 [ 199.230072][ T5991] gfs2_fill_super+0xe20/0x1a9c [ 199.230845][ T5991] get_tree_bdev+0x35c/0x54c [ 199.231783][ T5991] gfs2_get_tree+0x58/0x1b8 [ 199.232743][ T5991] vfs_get_tree+0x90/0x278 [ 199.233648][ T5991] do_new_mount+0x228/0x804 [ 199.234476][ T5991] path_mount+0x57c/0xfe8 [ 199.235278][ T5991] __arm64_sys_mount+0x488/0x5f8 [ 199.236160][ T5991] invoke_syscall+0x98/0x28c [ 199.236983][ T5991] el0_svc_common+0x13c/0x258 [ 199.237813][ T5991] do_el0_svc+0x5c/0x140 [ 199.238588][ T5991] el0_svc+0x78/0x1d0 [ 199.239252][ T5991] el0t_64_sync_handler+0xcc/0xe4 [ 199.240110][ T5991] el0t_64_sync+0x1a0/0x1a4 [ 199.241036][ T5991] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.243174][ T5991] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.374844][ T5993] loop1: detected capacity change from 0 to 32768 [ 199.426427][ T5993] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.427846][ T5993] CPU: 1 PID: 5993 Comm: syz.1.558 Not tainted syzkaller #0 [ 199.429109][ T5993] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 199.430825][ T5993] Call trace: [ 199.431427][ T5993] dump_backtrace+0x0/0x458 [ 199.432228][ T5993] show_stack+0x2c/0x3c [ 199.432936][ T5993] __dump_stack+0x30/0x40 [ 199.433682][ T5993] dump_stack_lvl+0xf4/0x15c [ 199.434489][ T5993] dump_stack+0x1c/0x5c [ 199.435196][ T5993] sysfs_create_dir_ns+0x244/0x264 [ 199.436076][ T5993] kobject_add_internal+0x594/0xc2c [ 199.437004][ T5993] kobject_init_and_add+0x128/0x194 [ 199.437959][ T5993] gfs2_sys_fs_add+0x208/0x428 [ 199.438831][ T5993] gfs2_fill_super+0xe20/0x1a9c [ 199.439704][ T5993] get_tree_bdev+0x35c/0x54c [ 199.440484][ T5993] gfs2_get_tree+0x58/0x1b8 [ 199.441303][ T5993] vfs_get_tree+0x90/0x278 [ 199.442095][ T5993] do_new_mount+0x228/0x804 [ 199.442924][ T5993] path_mount+0x57c/0xfe8 [ 199.443741][ T5993] __arm64_sys_mount+0x488/0x5f8 [ 199.444819][ T5993] invoke_syscall+0x98/0x28c [ 199.445621][ T5993] el0_svc_common+0x13c/0x258 [ 199.446454][ T5993] do_el0_svc+0x5c/0x140 [ 199.447210][ T5993] el0_svc+0x78/0x1d0 [ 199.447929][ T5993] el0t_64_sync_handler+0xcc/0xe4 [ 199.448819][ T5993] el0t_64_sync+0x1a0/0x1a4 [ 199.451061][ T5993] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.453189][ T5993] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.593471][ T5995] loop1: detected capacity change from 0 to 32768 [ 199.598056][ T5995] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.599336][ T5995] CPU: 1 PID: 5995 Comm: syz.1.559 Not tainted syzkaller #0 [ 199.600779][ T5995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 199.602510][ T5995] Call trace: [ 199.603063][ T5995] dump_backtrace+0x0/0x458 [ 199.603781][ T5995] show_stack+0x2c/0x3c [ 199.604449][ T5995] __dump_stack+0x30/0x40 [ 199.605158][ T5995] dump_stack_lvl+0xf4/0x15c [ 199.605884][ T5995] dump_stack+0x1c/0x5c [ 199.606575][ T5995] sysfs_create_dir_ns+0x244/0x264 [ 199.607543][ T5995] kobject_add_internal+0x594/0xc2c [ 199.608510][ T5995] kobject_init_and_add+0x128/0x194 [ 199.609478][ T5995] gfs2_sys_fs_add+0x208/0x428 [ 199.610284][ T5995] gfs2_fill_super+0xe20/0x1a9c [ 199.611104][ T5995] get_tree_bdev+0x35c/0x54c [ 199.612028][ T5995] gfs2_get_tree+0x58/0x1b8 [ 199.612926][ T5995] vfs_get_tree+0x90/0x278 [ 199.613783][ T5995] do_new_mount+0x228/0x804 [ 199.614584][ T5995] path_mount+0x57c/0xfe8 [ 199.615382][ T5995] __arm64_sys_mount+0x488/0x5f8 [ 199.616242][ T5995] invoke_syscall+0x98/0x28c [ 199.617053][ T5995] el0_svc_common+0x13c/0x258 [ 199.617885][ T5995] do_el0_svc+0x5c/0x140 [ 199.618633][ T5995] el0_svc+0x78/0x1d0 [ 199.619331][ T5995] el0t_64_sync_handler+0xcc/0xe4 [ 199.620220][ T5995] el0t_64_sync+0x1a0/0x1a4 [ 199.622283][ T5995] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.624465][ T5995] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 199.871202][ T5997] loop1: detected capacity change from 0 to 32768 [ 199.921317][ T5997] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 199.922658][ T5997] CPU: 0 PID: 5997 Comm: syz.1.560 Not tainted syzkaller #0 [ 199.923809][ T5997] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 199.925402][ T5997] Call trace: [ 199.925924][ T5997] dump_backtrace+0x0/0x458 [ 199.926674][ T5997] show_stack+0x2c/0x3c [ 199.927372][ T5997] __dump_stack+0x30/0x40 [ 199.928109][ T5997] dump_stack_lvl+0xf4/0x15c [ 199.928937][ T5997] dump_stack+0x1c/0x5c [ 199.929649][ T5997] sysfs_create_dir_ns+0x244/0x264 [ 199.930467][ T5997] kobject_add_internal+0x594/0xc2c [ 199.931332][ T5997] kobject_init_and_add+0x128/0x194 [ 199.932177][ T5997] gfs2_sys_fs_add+0x208/0x428 [ 199.932951][ T5997] gfs2_fill_super+0xe20/0x1a9c [ 199.933766][ T5997] get_tree_bdev+0x35c/0x54c [ 199.934565][ T5997] gfs2_get_tree+0x58/0x1b8 [ 199.935299][ T5997] vfs_get_tree+0x90/0x278 [ 199.936038][ T5997] do_new_mount+0x228/0x804 [ 199.936803][ T5997] path_mount+0x57c/0xfe8 [ 199.937509][ T5997] __arm64_sys_mount+0x488/0x5f8 [ 199.938473][ T5997] invoke_syscall+0x98/0x28c [ 199.939345][ T5997] el0_svc_common+0x13c/0x258 [ 199.940257][ T5997] do_el0_svc+0x5c/0x140 [ 199.941140][ T5997] el0_svc+0x78/0x1d0 [ 199.941967][ T5997] el0t_64_sync_handler+0xcc/0xe4 [ 199.943002][ T5997] el0t_64_sync+0x1a0/0x1a4 [ 199.945400][ T5997] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 199.947772][ T5997] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.081620][ T5999] loop1: detected capacity change from 0 to 32768 [ 200.089259][ T5999] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.090567][ T5999] CPU: 1 PID: 5999 Comm: syz.1.561 Not tainted syzkaller #0 [ 200.091823][ T5999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 200.093518][ T5999] Call trace: [ 200.094051][ T5999] dump_backtrace+0x0/0x458 [ 200.094816][ T5999] show_stack+0x2c/0x3c [ 200.095503][ T5999] __dump_stack+0x30/0x40 [ 200.096227][ T5999] dump_stack_lvl+0xf4/0x15c [ 200.097024][ T5999] dump_stack+0x1c/0x5c [ 200.097780][ T5999] sysfs_create_dir_ns+0x244/0x264 [ 200.098756][ T5999] kobject_add_internal+0x594/0xc2c [ 200.099708][ T5999] kobject_init_and_add+0x128/0x194 [ 200.100614][ T5999] gfs2_sys_fs_add+0x208/0x428 [ 200.101454][ T5999] gfs2_fill_super+0xe20/0x1a9c [ 200.102312][ T5999] get_tree_bdev+0x35c/0x54c [ 200.103134][ T5999] gfs2_get_tree+0x58/0x1b8 [ 200.103914][ T5999] vfs_get_tree+0x90/0x278 [ 200.104678][ T5999] do_new_mount+0x228/0x804 [ 200.105625][ T5999] path_mount+0x57c/0xfe8 [ 200.106454][ T5999] __arm64_sys_mount+0x488/0x5f8 [ 200.107346][ T5999] invoke_syscall+0x98/0x28c [ 200.108213][ T5999] el0_svc_common+0x13c/0x258 [ 200.109045][ T5999] do_el0_svc+0x5c/0x140 [ 200.109873][ T5999] el0_svc+0x78/0x1d0 [ 200.110618][ T5999] el0t_64_sync_handler+0xcc/0xe4 [ 200.111605][ T5999] el0t_64_sync+0x1a0/0x1a4 [ 200.114074][ T5999] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.116255][ T5999] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.252754][ T6001] loop1: detected capacity change from 0 to 32768 [ 200.297575][ T6001] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.298865][ T6001] CPU: 0 PID: 6001 Comm: syz.1.562 Not tainted syzkaller #0 [ 200.300260][ T6001] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 200.302102][ T6001] Call trace: [ 200.302696][ T6001] dump_backtrace+0x0/0x458 [ 200.303527][ T6001] show_stack+0x2c/0x3c [ 200.304273][ T6001] __dump_stack+0x30/0x40 [ 200.304975][ T6001] dump_stack_lvl+0xf4/0x15c [ 200.305755][ T6001] dump_stack+0x1c/0x5c [ 200.306432][ T6001] sysfs_create_dir_ns+0x244/0x264 [ 200.307309][ T6001] kobject_add_internal+0x594/0xc2c [ 200.308200][ T6001] kobject_init_and_add+0x128/0x194 [ 200.309136][ T6001] gfs2_sys_fs_add+0x208/0x428 [ 200.309952][ T6001] gfs2_fill_super+0xe20/0x1a9c [ 200.310728][ T6001] get_tree_bdev+0x35c/0x54c [ 200.311461][ T6001] gfs2_get_tree+0x58/0x1b8 [ 200.312228][ T6001] vfs_get_tree+0x90/0x278 [ 200.312992][ T6001] do_new_mount+0x228/0x804 [ 200.313708][ T6001] path_mount+0x57c/0xfe8 [ 200.314416][ T6001] __arm64_sys_mount+0x488/0x5f8 [ 200.315260][ T6001] invoke_syscall+0x98/0x28c [ 200.316039][ T6001] el0_svc_common+0x13c/0x258 [ 200.316843][ T6001] do_el0_svc+0x5c/0x140 [ 200.317605][ T6001] el0_svc+0x78/0x1d0 [ 200.318331][ T6001] el0t_64_sync_handler+0xcc/0xe4 [ 200.319355][ T6001] el0t_64_sync+0x1a0/0x1a4 [ 200.320457][ T6001] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.322808][ T6001] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.487585][ T6004] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.489033][ T6004] CPU: 1 PID: 6004 Comm: syz.1.563 Not tainted syzkaller #0 [ 200.490249][ T6004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 200.491963][ T6004] Call trace: [ 200.492506][ T6004] dump_backtrace+0x0/0x458 [ 200.493292][ T6004] show_stack+0x2c/0x3c [ 200.493937][ T6004] __dump_stack+0x30/0x40 [ 200.494641][ T6004] dump_stack_lvl+0xf4/0x15c [ 200.495400][ T6004] dump_stack+0x1c/0x5c [ 200.496084][ T6004] sysfs_create_dir_ns+0x244/0x264 [ 200.497014][ T6004] kobject_add_internal+0x594/0xc2c [ 200.497956][ T6004] kobject_init_and_add+0x128/0x194 [ 200.498931][ T6004] gfs2_sys_fs_add+0x208/0x428 [ 200.499836][ T6004] gfs2_fill_super+0xe20/0x1a9c [ 200.500668][ T6004] get_tree_bdev+0x35c/0x54c [ 200.501469][ T6004] gfs2_get_tree+0x58/0x1b8 [ 200.502279][ T6004] vfs_get_tree+0x90/0x278 [ 200.503065][ T6004] do_new_mount+0x228/0x804 [ 200.503857][ T6004] path_mount+0x57c/0xfe8 [ 200.504608][ T6004] __arm64_sys_mount+0x488/0x5f8 [ 200.505453][ T6004] invoke_syscall+0x98/0x28c [ 200.506249][ T6004] el0_svc_common+0x13c/0x258 [ 200.507226][ T6004] do_el0_svc+0x5c/0x140 [ 200.507981][ T6004] el0_svc+0x78/0x1d0 [ 200.508677][ T6004] el0t_64_sync_handler+0xcc/0xe4 [ 200.509565][ T6004] el0t_64_sync+0x1a0/0x1a4 [ 200.511055][ T6004] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.513248][ T6004] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.691526][ T6006] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.692837][ T6006] CPU: 1 PID: 6006 Comm: syz.1.564 Not tainted syzkaller #0 [ 200.694092][ T6006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 200.695785][ T6006] Call trace: [ 200.696312][ T6006] dump_backtrace+0x0/0x458 [ 200.697157][ T6006] show_stack+0x2c/0x3c [ 200.697877][ T6006] __dump_stack+0x30/0x40 [ 200.698631][ T6006] dump_stack_lvl+0xf4/0x15c [ 200.699427][ T6006] dump_stack+0x1c/0x5c [ 200.700167][ T6006] sysfs_create_dir_ns+0x244/0x264 [ 200.701083][ T6006] kobject_add_internal+0x594/0xc2c [ 200.702034][ T6006] kobject_init_and_add+0x128/0x194 [ 200.702966][ T6006] gfs2_sys_fs_add+0x208/0x428 [ 200.703875][ T6006] gfs2_fill_super+0xe20/0x1a9c [ 200.704776][ T6006] get_tree_bdev+0x35c/0x54c [ 200.705619][ T6006] gfs2_get_tree+0x58/0x1b8 [ 200.706463][ T6006] vfs_get_tree+0x90/0x278 [ 200.707278][ T6006] do_new_mount+0x228/0x804 [ 200.708089][ T6006] path_mount+0x57c/0xfe8 [ 200.708797][ T6006] __arm64_sys_mount+0x488/0x5f8 [ 200.709611][ T6006] invoke_syscall+0x98/0x28c [ 200.710418][ T6006] el0_svc_common+0x13c/0x258 [ 200.711216][ T6006] do_el0_svc+0x5c/0x140 [ 200.711959][ T6006] el0_svc+0x78/0x1d0 [ 200.712660][ T6006] el0t_64_sync_handler+0xcc/0xe4 [ 200.713686][ T6006] el0t_64_sync+0x1a0/0x1a4 [ 200.715845][ T6006] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.718459][ T6006] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 200.898210][ T6008] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 200.899469][ T6008] CPU: 1 PID: 6008 Comm: syz.1.565 Not tainted syzkaller #0 [ 200.900635][ T6008] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 200.902361][ T6008] Call trace: [ 200.902922][ T6008] dump_backtrace+0x0/0x458 [ 200.903653][ T6008] show_stack+0x2c/0x3c [ 200.904312][ T6008] __dump_stack+0x30/0x40 [ 200.905020][ T6008] dump_stack_lvl+0xf4/0x15c [ 200.905800][ T6008] dump_stack+0x1c/0x5c [ 200.906498][ T6008] sysfs_create_dir_ns+0x244/0x264 [ 200.907376][ T6008] kobject_add_internal+0x594/0xc2c [ 200.908262][ T6008] kobject_init_and_add+0x128/0x194 [ 200.909146][ T6008] gfs2_sys_fs_add+0x208/0x428 [ 200.910003][ T6008] gfs2_fill_super+0xe20/0x1a9c [ 200.910868][ T6008] get_tree_bdev+0x35c/0x54c [ 200.911694][ T6008] gfs2_get_tree+0x58/0x1b8 [ 200.912454][ T6008] vfs_get_tree+0x90/0x278 [ 200.913233][ T6008] do_new_mount+0x228/0x804 [ 200.914020][ T6008] path_mount+0x57c/0xfe8 [ 200.914782][ T6008] __arm64_sys_mount+0x488/0x5f8 [ 200.915631][ T6008] invoke_syscall+0x98/0x28c [ 200.916436][ T6008] el0_svc_common+0x13c/0x258 [ 200.917210][ T6008] do_el0_svc+0x5c/0x140 [ 200.917949][ T6008] el0_svc+0x78/0x1d0 [ 200.918634][ T6008] el0t_64_sync_handler+0xcc/0xe4 [ 200.919525][ T6008] el0t_64_sync+0x1a0/0x1a4 [ 200.921963][ T6008] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 200.924329][ T6008] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.107492][ T6011] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.108903][ T6011] CPU: 1 PID: 6011 Comm: syz.1.566 Not tainted syzkaller #0 [ 201.110264][ T6011] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 201.112158][ T6011] Call trace: [ 201.112725][ T6011] dump_backtrace+0x0/0x458 [ 201.113629][ T6011] show_stack+0x2c/0x3c [ 201.114407][ T6011] __dump_stack+0x30/0x40 [ 201.115232][ T6011] dump_stack_lvl+0xf4/0x15c [ 201.116194][ T6011] dump_stack+0x1c/0x5c [ 201.117045][ T6011] sysfs_create_dir_ns+0x244/0x264 [ 201.118074][ T6011] kobject_add_internal+0x594/0xc2c [ 201.119106][ T6011] kobject_init_and_add+0x128/0x194 [ 201.120045][ T6011] gfs2_sys_fs_add+0x208/0x428 [ 201.120909][ T6011] gfs2_fill_super+0xe20/0x1a9c [ 201.121780][ T6011] get_tree_bdev+0x35c/0x54c [ 201.122635][ T6011] gfs2_get_tree+0x58/0x1b8 [ 201.123494][ T6011] vfs_get_tree+0x90/0x278 [ 201.124340][ T6011] do_new_mount+0x228/0x804 [ 201.125179][ T6011] path_mount+0x57c/0xfe8 [ 201.125983][ T6011] __arm64_sys_mount+0x488/0x5f8 [ 201.126881][ T6011] invoke_syscall+0x98/0x28c [ 201.127715][ T6011] el0_svc_common+0x13c/0x258 [ 201.128561][ T6011] do_el0_svc+0x5c/0x140 [ 201.129321][ T6011] el0_svc+0x78/0x1d0 [ 201.130087][ T6011] el0t_64_sync_handler+0xcc/0xe4 [ 201.131122][ T6011] el0t_64_sync+0x1a0/0x1a4 [ 201.133083][ T6011] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.135531][ T6011] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.274632][ T6014] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.275906][ T6014] CPU: 0 PID: 6014 Comm: syz.1.567 Not tainted syzkaller #0 [ 201.277182][ T6014] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 201.278879][ T6014] Call trace: [ 201.279431][ T6014] dump_backtrace+0x0/0x458 [ 201.280214][ T6014] show_stack+0x2c/0x3c [ 201.280909][ T6014] __dump_stack+0x30/0x40 [ 201.281690][ T6014] dump_stack_lvl+0xf4/0x15c [ 201.282468][ T6014] dump_stack+0x1c/0x5c [ 201.283220][ T6014] sysfs_create_dir_ns+0x244/0x264 [ 201.284071][ T6014] kobject_add_internal+0x594/0xc2c [ 201.284956][ T6014] kobject_init_and_add+0x128/0x194 [ 201.285857][ T6014] gfs2_sys_fs_add+0x208/0x428 [ 201.286659][ T6014] gfs2_fill_super+0xe20/0x1a9c [ 201.287444][ T6014] get_tree_bdev+0x35c/0x54c [ 201.288249][ T6014] gfs2_get_tree+0x58/0x1b8 [ 201.288992][ T6014] vfs_get_tree+0x90/0x278 [ 201.289885][ T6014] do_new_mount+0x228/0x804 [ 201.290661][ T6014] path_mount+0x57c/0xfe8 [ 201.291344][ T6014] __arm64_sys_mount+0x488/0x5f8 [ 201.292122][ T6014] invoke_syscall+0x98/0x28c [ 201.292884][ T6014] el0_svc_common+0x13c/0x258 [ 201.293616][ T6014] do_el0_svc+0x5c/0x140 [ 201.294297][ T6014] el0_svc+0x78/0x1d0 [ 201.294943][ T6014] el0t_64_sync_handler+0xcc/0xe4 [ 201.295772][ T6014] el0t_64_sync+0x1a0/0x1a4 [ 201.296647][ T6014] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.300067][ T6014] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.468833][ T6017] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.470210][ T6017] CPU: 1 PID: 6017 Comm: syz.1.568 Not tainted syzkaller #0 [ 201.471595][ T6017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 201.473514][ T6017] Call trace: [ 201.474158][ T6017] dump_backtrace+0x0/0x458 [ 201.475028][ T6017] show_stack+0x2c/0x3c [ 201.475825][ T6017] __dump_stack+0x30/0x40 [ 201.476644][ T6017] dump_stack_lvl+0xf4/0x15c [ 201.477520][ T6017] dump_stack+0x1c/0x5c [ 201.478320][ T6017] sysfs_create_dir_ns+0x244/0x264 [ 201.479303][ T6017] kobject_add_internal+0x594/0xc2c [ 201.480281][ T6017] kobject_init_and_add+0x128/0x194 [ 201.481243][ T6017] gfs2_sys_fs_add+0x208/0x428 [ 201.482117][ T6017] gfs2_fill_super+0xe20/0x1a9c [ 201.482964][ T6017] get_tree_bdev+0x35c/0x54c [ 201.483766][ T6017] gfs2_get_tree+0x58/0x1b8 [ 201.484558][ T6017] vfs_get_tree+0x90/0x278 [ 201.485330][ T6017] do_new_mount+0x228/0x804 [ 201.486139][ T6017] path_mount+0x57c/0xfe8 [ 201.486920][ T6017] __arm64_sys_mount+0x488/0x5f8 [ 201.487811][ T6017] invoke_syscall+0x98/0x28c [ 201.488642][ T6017] el0_svc_common+0x13c/0x258 [ 201.489429][ T6017] do_el0_svc+0x5c/0x140 [ 201.490176][ T6017] el0_svc+0x78/0x1d0 [ 201.490885][ T6017] el0t_64_sync_handler+0xcc/0xe4 [ 201.491781][ T6017] el0t_64_sync+0x1a0/0x1a4 [ 201.494140][ T6017] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.496529][ T6017] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.677595][ T6019] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.679035][ T6019] CPU: 1 PID: 6019 Comm: syz.1.569 Not tainted syzkaller #0 [ 201.680387][ T6019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 201.682135][ T6019] Call trace: [ 201.682694][ T6019] dump_backtrace+0x0/0x458 [ 201.683491][ T6019] show_stack+0x2c/0x3c [ 201.684191][ T6019] __dump_stack+0x30/0x40 [ 201.684919][ T6019] dump_stack_lvl+0xf4/0x15c [ 201.685701][ T6019] dump_stack+0x1c/0x5c [ 201.686395][ T6019] sysfs_create_dir_ns+0x244/0x264 [ 201.687263][ T6019] kobject_add_internal+0x594/0xc2c [ 201.688163][ T6019] kobject_init_and_add+0x128/0x194 [ 201.689115][ T6019] gfs2_sys_fs_add+0x208/0x428 [ 201.689971][ T6019] gfs2_fill_super+0xe20/0x1a9c [ 201.690857][ T6019] get_tree_bdev+0x35c/0x54c [ 201.691824][ T6019] gfs2_get_tree+0x58/0x1b8 [ 201.692705][ T6019] vfs_get_tree+0x90/0x278 [ 201.693457][ T6019] do_new_mount+0x228/0x804 [ 201.694228][ T6019] path_mount+0x57c/0xfe8 [ 201.694990][ T6019] __arm64_sys_mount+0x488/0x5f8 [ 201.695844][ T6019] invoke_syscall+0x98/0x28c [ 201.696639][ T6019] el0_svc_common+0x13c/0x258 [ 201.697629][ T6019] do_el0_svc+0x5c/0x140 [ 201.698450][ T6019] el0_svc+0x78/0x1d0 [ 201.699224][ T6019] el0t_64_sync_handler+0xcc/0xe4 [ 201.700117][ T6019] el0t_64_sync+0x1a0/0x1a4 [ 201.702521][ T6019] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.704679][ T6019] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 201.888225][ T6021] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 201.889593][ T6021] CPU: 0 PID: 6021 Comm: syz.1.570 Not tainted syzkaller #0 [ 201.890751][ T6021] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 201.892423][ T6021] Call trace: [ 201.892934][ T6021] dump_backtrace+0x0/0x458 [ 201.893652][ T6021] show_stack+0x2c/0x3c [ 201.894355][ T6021] __dump_stack+0x30/0x40 [ 201.895068][ T6021] dump_stack_lvl+0xf4/0x15c [ 201.895895][ T6021] dump_stack+0x1c/0x5c [ 201.896570][ T6021] sysfs_create_dir_ns+0x244/0x264 [ 201.897386][ T6021] kobject_add_internal+0x594/0xc2c [ 201.898221][ T6021] kobject_init_and_add+0x128/0x194 [ 201.899077][ T6021] gfs2_sys_fs_add+0x208/0x428 [ 201.899834][ T6021] gfs2_fill_super+0xe20/0x1a9c [ 201.900639][ T6021] get_tree_bdev+0x35c/0x54c [ 201.901404][ T6021] gfs2_get_tree+0x58/0x1b8 [ 201.902146][ T6021] vfs_get_tree+0x90/0x278 [ 201.902868][ T6021] do_new_mount+0x228/0x804 [ 201.903644][ T6021] path_mount+0x57c/0xfe8 [ 201.904409][ T6021] __arm64_sys_mount+0x488/0x5f8 [ 201.905213][ T6021] invoke_syscall+0x98/0x28c [ 201.906054][ T6021] el0_svc_common+0x13c/0x258 [ 201.906931][ T6021] do_el0_svc+0x5c/0x140 [ 201.907631][ T6021] el0_svc+0x78/0x1d0 [ 201.908292][ T6021] el0t_64_sync_handler+0xcc/0xe4 [ 201.909151][ T6021] el0t_64_sync+0x1a0/0x1a4 [ 201.915272][ T6021] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 201.917651][ T6021] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.091629][ T6024] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.093002][ T6024] CPU: 0 PID: 6024 Comm: syz.1.571 Not tainted syzkaller #0 [ 202.094330][ T6024] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 202.096055][ T6024] Call trace: [ 202.096698][ T6024] dump_backtrace+0x0/0x458 [ 202.097549][ T6024] show_stack+0x2c/0x3c [ 202.098330][ T6024] __dump_stack+0x30/0x40 [ 202.099153][ T6024] dump_stack_lvl+0xf4/0x15c [ 202.099982][ T6024] dump_stack+0x1c/0x5c [ 202.100825][ T6024] sysfs_create_dir_ns+0x244/0x264 [ 202.101871][ T6024] kobject_add_internal+0x594/0xc2c [ 202.102920][ T6024] kobject_init_and_add+0x128/0x194 [ 202.103875][ T6024] gfs2_sys_fs_add+0x208/0x428 [ 202.104789][ T6024] gfs2_fill_super+0xe20/0x1a9c [ 202.105567][ T6024] get_tree_bdev+0x35c/0x54c [ 202.106327][ T6024] gfs2_get_tree+0x58/0x1b8 [ 202.107228][ T6024] vfs_get_tree+0x90/0x278 [ 202.108121][ T6024] do_new_mount+0x228/0x804 [ 202.109029][ T6024] path_mount+0x57c/0xfe8 [ 202.109868][ T6024] __arm64_sys_mount+0x488/0x5f8 [ 202.110737][ T6024] invoke_syscall+0x98/0x28c [ 202.111557][ T6024] el0_svc_common+0x13c/0x258 [ 202.112438][ T6024] do_el0_svc+0x5c/0x140 [ 202.113168][ T6024] el0_svc+0x78/0x1d0 [ 202.113851][ T6024] el0t_64_sync_handler+0xcc/0xe4 [ 202.114710][ T6024] el0t_64_sync+0x1a0/0x1a4 [ 202.117496][ T6024] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.119600][ T6024] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.327560][ T6026] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.328962][ T6026] CPU: 1 PID: 6026 Comm: syz.1.572 Not tainted syzkaller #0 [ 202.330215][ T6026] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 202.332012][ T6026] Call trace: [ 202.332610][ T6026] dump_backtrace+0x0/0x458 [ 202.333404][ T6026] show_stack+0x2c/0x3c [ 202.334126][ T6026] __dump_stack+0x30/0x40 [ 202.334914][ T6026] dump_stack_lvl+0xf4/0x15c [ 202.335764][ T6026] dump_stack+0x1c/0x5c [ 202.336503][ T6026] sysfs_create_dir_ns+0x244/0x264 [ 202.337391][ T6026] kobject_add_internal+0x594/0xc2c [ 202.338331][ T6026] kobject_init_and_add+0x128/0x194 [ 202.339233][ T6026] gfs2_sys_fs_add+0x208/0x428 [ 202.340059][ T6026] gfs2_fill_super+0xe20/0x1a9c [ 202.340909][ T6026] get_tree_bdev+0x35c/0x54c [ 202.341712][ T6026] gfs2_get_tree+0x58/0x1b8 [ 202.342509][ T6026] vfs_get_tree+0x90/0x278 [ 202.343307][ T6026] do_new_mount+0x228/0x804 [ 202.344143][ T6026] path_mount+0x57c/0xfe8 [ 202.344939][ T6026] __arm64_sys_mount+0x488/0x5f8 [ 202.345855][ T6026] invoke_syscall+0x98/0x28c [ 202.346706][ T6026] el0_svc_common+0x13c/0x258 [ 202.347522][ T6026] do_el0_svc+0x5c/0x140 [ 202.348339][ T6026] el0_svc+0x78/0x1d0 [ 202.349008][ T6026] el0t_64_sync_handler+0xcc/0xe4 [ 202.349851][ T6026] el0t_64_sync+0x1a0/0x1a4 [ 202.351097][ T6026] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.353334][ T6026] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.530828][ T6028] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.532085][ T6028] CPU: 1 PID: 6028 Comm: syz.1.573 Not tainted syzkaller #0 [ 202.533338][ T6028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 202.535047][ T6028] Call trace: [ 202.535667][ T6028] dump_backtrace+0x0/0x458 [ 202.536519][ T6028] show_stack+0x2c/0x3c [ 202.537343][ T6028] __dump_stack+0x30/0x40 [ 202.538215][ T6028] dump_stack_lvl+0xf4/0x15c [ 202.539014][ T6028] dump_stack+0x1c/0x5c [ 202.539883][ T6028] sysfs_create_dir_ns+0x244/0x264 [ 202.540840][ T6028] kobject_add_internal+0x594/0xc2c [ 202.541776][ T6028] kobject_init_and_add+0x128/0x194 [ 202.542876][ T6028] gfs2_sys_fs_add+0x208/0x428 [ 202.543834][ T6028] gfs2_fill_super+0xe20/0x1a9c [ 202.544863][ T6028] get_tree_bdev+0x35c/0x54c [ 202.545721][ T6028] gfs2_get_tree+0x58/0x1b8 [ 202.546576][ T6028] vfs_get_tree+0x90/0x278 [ 202.547405][ T6028] do_new_mount+0x228/0x804 [ 202.548358][ T6028] path_mount+0x57c/0xfe8 [ 202.549151][ T6028] __arm64_sys_mount+0x488/0x5f8 [ 202.550056][ T6028] invoke_syscall+0x98/0x28c [ 202.550912][ T6028] el0_svc_common+0x13c/0x258 [ 202.551765][ T6028] do_el0_svc+0x5c/0x140 [ 202.552553][ T6028] el0_svc+0x78/0x1d0 [ 202.553297][ T6028] el0t_64_sync_handler+0xcc/0xe4 [ 202.554200][ T6028] el0t_64_sync+0x1a0/0x1a4 [ 202.556416][ T6028] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.558461][ T6028] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 202.791482][ T6030] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 202.792753][ T6030] CPU: 0 PID: 6030 Comm: syz.1.574 Not tainted syzkaller #0 [ 202.793909][ T6030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 202.795420][ T6030] Call trace: [ 202.795914][ T6030] dump_backtrace+0x0/0x458 [ 202.796650][ T6030] show_stack+0x2c/0x3c [ 202.797367][ T6030] __dump_stack+0x30/0x40 [ 202.798137][ T6030] dump_stack_lvl+0xf4/0x15c [ 202.798928][ T6030] dump_stack+0x1c/0x5c [ 202.799619][ T6030] sysfs_create_dir_ns+0x244/0x264 [ 202.800430][ T6030] kobject_add_internal+0x594/0xc2c [ 202.801323][ T6030] kobject_init_and_add+0x128/0x194 [ 202.802239][ T6030] gfs2_sys_fs_add+0x208/0x428 [ 202.803058][ T6030] gfs2_fill_super+0xe20/0x1a9c [ 202.803890][ T6030] get_tree_bdev+0x35c/0x54c [ 202.804678][ T6030] gfs2_get_tree+0x58/0x1b8 [ 202.805478][ T6030] vfs_get_tree+0x90/0x278 [ 202.806227][ T6030] do_new_mount+0x228/0x804 [ 202.806983][ T6030] path_mount+0x57c/0xfe8 [ 202.807849][ T6030] __arm64_sys_mount+0x488/0x5f8 [ 202.808843][ T6030] invoke_syscall+0x98/0x28c [ 202.809697][ T6030] el0_svc_common+0x13c/0x258 [ 202.810563][ T6030] do_el0_svc+0x5c/0x140 [ 202.811311][ T6030] el0_svc+0x78/0x1d0 [ 202.812038][ T6030] el0t_64_sync_handler+0xcc/0xe4 [ 202.812939][ T6030] el0t_64_sync+0x1a0/0x1a4 [ 202.815256][ T6030] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 202.825396][ T6030] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.041797][ T6032] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.043066][ T6032] CPU: 0 PID: 6032 Comm: syz.1.575 Not tainted syzkaller #0 [ 203.044247][ T6032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 203.045962][ T6032] Call trace: [ 203.046481][ T6032] dump_backtrace+0x0/0x458 [ 203.047263][ T6032] show_stack+0x2c/0x3c [ 203.047936][ T6032] __dump_stack+0x30/0x40 [ 203.048645][ T6032] dump_stack_lvl+0xf4/0x15c [ 203.049441][ T6032] dump_stack+0x1c/0x5c [ 203.050185][ T6032] sysfs_create_dir_ns+0x244/0x264 [ 203.051116][ T6032] kobject_add_internal+0x594/0xc2c [ 203.052084][ T6032] kobject_init_and_add+0x128/0x194 [ 203.052942][ T6032] gfs2_sys_fs_add+0x208/0x428 [ 203.053711][ T6032] gfs2_fill_super+0xe20/0x1a9c [ 203.054537][ T6032] get_tree_bdev+0x35c/0x54c [ 203.055303][ T6032] gfs2_get_tree+0x58/0x1b8 [ 203.056091][ T6032] vfs_get_tree+0x90/0x278 [ 203.056794][ T6032] do_new_mount+0x228/0x804 [ 203.057528][ T6032] path_mount+0x57c/0xfe8 [ 203.058277][ T6032] __arm64_sys_mount+0x488/0x5f8 [ 203.059091][ T6032] invoke_syscall+0x98/0x28c [ 203.059823][ T6032] el0_svc_common+0x13c/0x258 [ 203.060575][ T6032] do_el0_svc+0x5c/0x140 [ 203.061284][ T6032] el0_svc+0x78/0x1d0 [ 203.061953][ T6032] el0t_64_sync_handler+0xcc/0xe4 [ 203.062801][ T6032] el0t_64_sync+0x1a0/0x1a4 [ 203.064944][ T6032] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.067342][ T6032] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.242445][ T6034] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.243704][ T6034] CPU: 0 PID: 6034 Comm: syz.1.576 Not tainted syzkaller #0 [ 203.245111][ T6034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 203.247111][ T6034] Call trace: [ 203.247675][ T6034] dump_backtrace+0x0/0x458 [ 203.248470][ T6034] show_stack+0x2c/0x3c [ 203.249204][ T6034] __dump_stack+0x30/0x40 [ 203.249976][ T6034] dump_stack_lvl+0xf4/0x15c [ 203.250714][ T6034] dump_stack+0x1c/0x5c [ 203.251443][ T6034] sysfs_create_dir_ns+0x244/0x264 [ 203.252368][ T6034] kobject_add_internal+0x594/0xc2c [ 203.253235][ T6034] kobject_init_and_add+0x128/0x194 [ 203.254098][ T6034] gfs2_sys_fs_add+0x208/0x428 [ 203.254928][ T6034] gfs2_fill_super+0xe20/0x1a9c [ 203.255727][ T6034] get_tree_bdev+0x35c/0x54c [ 203.256426][ T6034] gfs2_get_tree+0x58/0x1b8 [ 203.257165][ T6034] vfs_get_tree+0x90/0x278 [ 203.257857][ T6034] do_new_mount+0x228/0x804 [ 203.258695][ T6034] path_mount+0x57c/0xfe8 [ 203.259484][ T6034] __arm64_sys_mount+0x488/0x5f8 [ 203.260357][ T6034] invoke_syscall+0x98/0x28c [ 203.261168][ T6034] el0_svc_common+0x13c/0x258 [ 203.262017][ T6034] do_el0_svc+0x5c/0x140 [ 203.262774][ T6034] el0_svc+0x78/0x1d0 [ 203.263483][ T6034] el0t_64_sync_handler+0xcc/0xe4 [ 203.264340][ T6034] el0t_64_sync+0x1a0/0x1a4 [ 203.266639][ T6034] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.268786][ T6034] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:23 executed programs: 563 [ 203.446527][ T6036] set_capacity_and_notify: 14 callbacks suppressed [ 203.446537][ T6036] loop1: detected capacity change from 0 to 32768 [ 203.497635][ T6036] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.498980][ T6036] CPU: 1 PID: 6036 Comm: syz.1.577 Not tainted syzkaller #0 [ 203.500216][ T6036] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 203.501825][ T6036] Call trace: [ 203.502347][ T6036] dump_backtrace+0x0/0x458 [ 203.503111][ T6036] show_stack+0x2c/0x3c [ 203.503782][ T6036] __dump_stack+0x30/0x40 [ 203.504542][ T6036] dump_stack_lvl+0xf4/0x15c [ 203.505380][ T6036] dump_stack+0x1c/0x5c [ 203.506070][ T6036] sysfs_create_dir_ns+0x244/0x264 [ 203.506991][ T6036] kobject_add_internal+0x594/0xc2c [ 203.507947][ T6036] kobject_init_and_add+0x128/0x194 [ 203.508911][ T6036] gfs2_sys_fs_add+0x208/0x428 [ 203.509680][ T6036] gfs2_fill_super+0xe20/0x1a9c [ 203.510496][ T6036] get_tree_bdev+0x35c/0x54c [ 203.511289][ T6036] gfs2_get_tree+0x58/0x1b8 [ 203.512014][ T6036] vfs_get_tree+0x90/0x278 [ 203.512778][ T6036] do_new_mount+0x228/0x804 [ 203.513547][ T6036] path_mount+0x57c/0xfe8 [ 203.514313][ T6036] __arm64_sys_mount+0x488/0x5f8 [ 203.515169][ T6036] invoke_syscall+0x98/0x28c [ 203.515980][ T6036] el0_svc_common+0x13c/0x258 [ 203.516781][ T6036] do_el0_svc+0x5c/0x140 [ 203.517533][ T6036] el0_svc+0x78/0x1d0 [ 203.518232][ T6036] el0t_64_sync_handler+0xcc/0xe4 [ 203.519126][ T6036] el0t_64_sync+0x1a0/0x1a4 [ 203.520177][ T6036] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.522494][ T6036] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.660275][ T6038] loop1: detected capacity change from 0 to 32768 [ 203.697836][ T6038] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.699152][ T6038] CPU: 0 PID: 6038 Comm: syz.1.578 Not tainted syzkaller #0 [ 203.700255][ T6038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 203.701806][ T6038] Call trace: [ 203.702315][ T6038] dump_backtrace+0x0/0x458 [ 203.703089][ T6038] show_stack+0x2c/0x3c [ 203.703747][ T6038] __dump_stack+0x30/0x40 [ 203.704457][ T6038] dump_stack_lvl+0xf4/0x15c [ 203.705314][ T6038] dump_stack+0x1c/0x5c [ 203.706071][ T6038] sysfs_create_dir_ns+0x244/0x264 [ 203.706887][ T6038] kobject_add_internal+0x594/0xc2c [ 203.707705][ T6038] kobject_init_and_add+0x128/0x194 [ 203.708513][ T6038] gfs2_sys_fs_add+0x208/0x428 [ 203.709295][ T6038] gfs2_fill_super+0xe20/0x1a9c [ 203.710042][ T6038] get_tree_bdev+0x35c/0x54c [ 203.710803][ T6038] gfs2_get_tree+0x58/0x1b8 [ 203.711509][ T6038] vfs_get_tree+0x90/0x278 [ 203.712209][ T6038] do_new_mount+0x228/0x804 [ 203.712927][ T6038] path_mount+0x57c/0xfe8 [ 203.713613][ T6038] __arm64_sys_mount+0x488/0x5f8 [ 203.714412][ T6038] invoke_syscall+0x98/0x28c [ 203.715201][ T6038] el0_svc_common+0x13c/0x258 [ 203.715934][ T6038] do_el0_svc+0x5c/0x140 [ 203.716617][ T6038] el0_svc+0x78/0x1d0 [ 203.717251][ T6038] el0t_64_sync_handler+0xcc/0xe4 [ 203.718068][ T6038] el0t_64_sync+0x1a0/0x1a4 [ 203.720454][ T6038] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.722589][ T6038] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 203.890478][ T6040] loop1: detected capacity change from 0 to 32768 [ 203.898123][ T6040] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 203.899619][ T6040] CPU: 0 PID: 6040 Comm: syz.1.579 Not tainted syzkaller #0 [ 203.900842][ T6040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 203.902517][ T6040] Call trace: [ 203.903010][ T6040] dump_backtrace+0x0/0x458 [ 203.903691][ T6040] show_stack+0x2c/0x3c [ 203.904384][ T6040] __dump_stack+0x30/0x40 [ 203.905111][ T6040] dump_stack_lvl+0xf4/0x15c [ 203.905844][ T6040] dump_stack+0x1c/0x5c [ 203.906539][ T6040] sysfs_create_dir_ns+0x244/0x264 [ 203.907460][ T6040] kobject_add_internal+0x594/0xc2c [ 203.908388][ T6040] kobject_init_and_add+0x128/0x194 [ 203.909289][ T6040] gfs2_sys_fs_add+0x208/0x428 [ 203.910103][ T6040] gfs2_fill_super+0xe20/0x1a9c [ 203.911050][ T6040] get_tree_bdev+0x35c/0x54c [ 203.911898][ T6040] gfs2_get_tree+0x58/0x1b8 [ 203.912697][ T6040] vfs_get_tree+0x90/0x278 [ 203.913474][ T6040] do_new_mount+0x228/0x804 [ 203.914336][ T6040] path_mount+0x57c/0xfe8 [ 203.915135][ T6040] __arm64_sys_mount+0x488/0x5f8 [ 203.916050][ T6040] invoke_syscall+0x98/0x28c [ 203.916885][ T6040] el0_svc_common+0x13c/0x258 [ 203.917771][ T6040] do_el0_svc+0x5c/0x140 [ 203.918462][ T6040] el0_svc+0x78/0x1d0 [ 203.919098][ T6040] el0t_64_sync_handler+0xcc/0xe4 [ 203.919957][ T6040] el0t_64_sync+0x1a0/0x1a4 [ 203.921414][ T6040] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 203.923568][ T6040] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.052593][ T6042] loop1: detected capacity change from 0 to 32768 [ 204.092163][ T6042] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.093459][ T6042] CPU: 0 PID: 6042 Comm: syz.1.580 Not tainted syzkaller #0 [ 204.094805][ T6042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 204.096642][ T6042] Call trace: [ 204.097278][ T6042] dump_backtrace+0x0/0x458 [ 204.098102][ T6042] show_stack+0x2c/0x3c [ 204.098773][ T6042] __dump_stack+0x30/0x40 [ 204.099628][ T6042] dump_stack_lvl+0xf4/0x15c [ 204.100544][ T6042] dump_stack+0x1c/0x5c [ 204.101374][ T6042] sysfs_create_dir_ns+0x244/0x264 [ 204.102400][ T6042] kobject_add_internal+0x594/0xc2c [ 204.103432][ T6042] kobject_init_and_add+0x128/0x194 [ 204.104434][ T6042] gfs2_sys_fs_add+0x208/0x428 [ 204.105294][ T6042] gfs2_fill_super+0xe20/0x1a9c [ 204.106071][ T6042] get_tree_bdev+0x35c/0x54c [ 204.106811][ T6042] gfs2_get_tree+0x58/0x1b8 [ 204.107553][ T6042] vfs_get_tree+0x90/0x278 [ 204.108296][ T6042] do_new_mount+0x228/0x804 [ 204.109021][ T6042] path_mount+0x57c/0xfe8 [ 204.109709][ T6042] __arm64_sys_mount+0x488/0x5f8 [ 204.110540][ T6042] invoke_syscall+0x98/0x28c [ 204.111278][ T6042] el0_svc_common+0x13c/0x258 [ 204.112006][ T6042] do_el0_svc+0x5c/0x140 [ 204.112844][ T6042] el0_svc+0x78/0x1d0 [ 204.113594][ T6042] el0t_64_sync_handler+0xcc/0xe4 [ 204.114483][ T6042] el0t_64_sync+0x1a0/0x1a4 [ 204.117341][ T6042] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.119627][ T6042] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.252166][ T6044] loop1: detected capacity change from 0 to 32768 [ 204.341086][ T6044] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.342298][ T6044] CPU: 1 PID: 6044 Comm: syz.1.581 Not tainted syzkaller #0 [ 204.343558][ T6044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 204.345229][ T6044] Call trace: [ 204.345744][ T6044] dump_backtrace+0x0/0x458 [ 204.346527][ T6044] show_stack+0x2c/0x3c [ 204.347328][ T6044] __dump_stack+0x30/0x40 [ 204.348127][ T6044] dump_stack_lvl+0xf4/0x15c [ 204.348965][ T6044] dump_stack+0x1c/0x5c [ 204.349692][ T6044] sysfs_create_dir_ns+0x244/0x264 [ 204.350687][ T6044] kobject_add_internal+0x594/0xc2c [ 204.351705][ T6044] kobject_init_and_add+0x128/0x194 [ 204.352741][ T6044] gfs2_sys_fs_add+0x208/0x428 [ 204.353557][ T6044] gfs2_fill_super+0xe20/0x1a9c [ 204.354367][ T6044] get_tree_bdev+0x35c/0x54c [ 204.355159][ T6044] gfs2_get_tree+0x58/0x1b8 [ 204.355930][ T6044] vfs_get_tree+0x90/0x278 [ 204.356862][ T6044] do_new_mount+0x228/0x804 [ 204.357767][ T6044] path_mount+0x57c/0xfe8 [ 204.358619][ T6044] __arm64_sys_mount+0x488/0x5f8 [ 204.359579][ T6044] invoke_syscall+0x98/0x28c [ 204.360423][ T6044] el0_svc_common+0x13c/0x258 [ 204.361296][ T6044] do_el0_svc+0x5c/0x140 [ 204.362014][ T6044] el0_svc+0x78/0x1d0 [ 204.362730][ T6044] el0t_64_sync_handler+0xcc/0xe4 [ 204.363631][ T6044] el0t_64_sync+0x1a0/0x1a4 [ 204.364607][ T6044] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.367640][ T6044] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.495160][ T6046] loop1: detected capacity change from 0 to 32768 [ 204.517942][ T6046] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.519209][ T6046] CPU: 0 PID: 6046 Comm: syz.1.582 Not tainted syzkaller #0 [ 204.520396][ T6046] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 204.522122][ T6046] Call trace: [ 204.522690][ T6046] dump_backtrace+0x0/0x458 [ 204.523476][ T6046] show_stack+0x2c/0x3c [ 204.524116][ T6046] __dump_stack+0x30/0x40 [ 204.524804][ T6046] dump_stack_lvl+0xf4/0x15c [ 204.525522][ T6046] dump_stack+0x1c/0x5c [ 204.526189][ T6046] sysfs_create_dir_ns+0x244/0x264 [ 204.526983][ T6046] kobject_add_internal+0x594/0xc2c [ 204.527851][ T6046] kobject_init_and_add+0x128/0x194 [ 204.528860][ T6046] gfs2_sys_fs_add+0x208/0x428 [ 204.529815][ T6046] gfs2_fill_super+0xe20/0x1a9c [ 204.530775][ T6046] get_tree_bdev+0x35c/0x54c [ 204.531590][ T6046] gfs2_get_tree+0x58/0x1b8 [ 204.532407][ T6046] vfs_get_tree+0x90/0x278 [ 204.533213][ T6046] do_new_mount+0x228/0x804 [ 204.534035][ T6046] path_mount+0x57c/0xfe8 [ 204.534810][ T6046] __arm64_sys_mount+0x488/0x5f8 [ 204.535683][ T6046] invoke_syscall+0x98/0x28c [ 204.536488][ T6046] el0_svc_common+0x13c/0x258 [ 204.537310][ T6046] do_el0_svc+0x5c/0x140 [ 204.538144][ T6046] el0_svc+0x78/0x1d0 [ 204.538873][ T6046] el0t_64_sync_handler+0xcc/0xe4 [ 204.539706][ T6046] el0t_64_sync+0x1a0/0x1a4 [ 204.542000][ T6046] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.544273][ T6046] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.675865][ T6048] loop1: detected capacity change from 0 to 32768 [ 204.734417][ T6048] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.735706][ T6048] CPU: 1 PID: 6048 Comm: syz.1.583 Not tainted syzkaller #0 [ 204.737175][ T6048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 204.739065][ T6048] Call trace: [ 204.739628][ T6048] dump_backtrace+0x0/0x458 [ 204.740446][ T6048] show_stack+0x2c/0x3c [ 204.741186][ T6048] __dump_stack+0x30/0x40 [ 204.742037][ T6048] dump_stack_lvl+0xf4/0x15c [ 204.742887][ T6048] dump_stack+0x1c/0x5c [ 204.743661][ T6048] sysfs_create_dir_ns+0x244/0x264 [ 204.744624][ T6048] kobject_add_internal+0x594/0xc2c [ 204.745578][ T6048] kobject_init_and_add+0x128/0x194 [ 204.746527][ T6048] gfs2_sys_fs_add+0x208/0x428 [ 204.747373][ T6048] gfs2_fill_super+0xe20/0x1a9c [ 204.748193][ T6048] get_tree_bdev+0x35c/0x54c [ 204.748970][ T6048] gfs2_get_tree+0x58/0x1b8 [ 204.749757][ T6048] vfs_get_tree+0x90/0x278 [ 204.750523][ T6048] do_new_mount+0x228/0x804 [ 204.751305][ T6048] path_mount+0x57c/0xfe8 [ 204.752014][ T6048] __arm64_sys_mount+0x488/0x5f8 [ 204.752842][ T6048] invoke_syscall+0x98/0x28c [ 204.753643][ T6048] el0_svc_common+0x13c/0x258 [ 204.754615][ T6048] do_el0_svc+0x5c/0x140 [ 204.755507][ T6048] el0_svc+0x78/0x1d0 [ 204.756358][ T6048] el0t_64_sync_handler+0xcc/0xe4 [ 204.757421][ T6048] el0t_64_sync+0x1a0/0x1a4 [ 204.758439][ T6048] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.760595][ T6048] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 204.898552][ T6050] loop1: detected capacity change from 0 to 32768 [ 204.937394][ T6050] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 204.938722][ T6050] CPU: 0 PID: 6050 Comm: syz.1.584 Not tainted syzkaller #0 [ 204.939966][ T6050] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 204.941678][ T6050] Call trace: [ 204.942171][ T6050] dump_backtrace+0x0/0x458 [ 204.942995][ T6050] show_stack+0x2c/0x3c [ 204.943642][ T6050] __dump_stack+0x30/0x40 [ 204.944337][ T6050] dump_stack_lvl+0xf4/0x15c [ 204.945054][ T6050] dump_stack+0x1c/0x5c [ 204.945734][ T6050] sysfs_create_dir_ns+0x244/0x264 [ 204.946618][ T6050] kobject_add_internal+0x594/0xc2c [ 204.947538][ T6050] kobject_init_and_add+0x128/0x194 [ 204.948418][ T6050] gfs2_sys_fs_add+0x208/0x428 [ 204.949202][ T6050] gfs2_fill_super+0xe20/0x1a9c [ 204.950022][ T6050] get_tree_bdev+0x35c/0x54c [ 204.950806][ T6050] gfs2_get_tree+0x58/0x1b8 [ 204.951533][ T6050] vfs_get_tree+0x90/0x278 [ 204.952308][ T6050] do_new_mount+0x228/0x804 [ 204.953104][ T6050] path_mount+0x57c/0xfe8 [ 204.953824][ T6050] __arm64_sys_mount+0x488/0x5f8 [ 204.954661][ T6050] invoke_syscall+0x98/0x28c [ 204.955428][ T6050] el0_svc_common+0x13c/0x258 [ 204.956210][ T6050] do_el0_svc+0x5c/0x140 [ 204.956926][ T6050] el0_svc+0x78/0x1d0 [ 204.957587][ T6050] el0t_64_sync_handler+0xcc/0xe4 [ 204.958447][ T6050] el0t_64_sync+0x1a0/0x1a4 [ 204.960822][ T6050] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 204.962953][ T6050] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.100141][ T6052] loop1: detected capacity change from 0 to 32768 [ 205.104500][ T6052] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.105745][ T6052] CPU: 0 PID: 6052 Comm: syz.1.585 Not tainted syzkaller #0 [ 205.106957][ T6052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 205.108668][ T6052] Call trace: [ 205.109249][ T6052] dump_backtrace+0x0/0x458 [ 205.110082][ T6052] show_stack+0x2c/0x3c [ 205.110831][ T6052] __dump_stack+0x30/0x40 [ 205.111546][ T6052] dump_stack_lvl+0xf4/0x15c [ 205.112303][ T6052] dump_stack+0x1c/0x5c [ 205.112988][ T6052] sysfs_create_dir_ns+0x244/0x264 [ 205.113843][ T6052] kobject_add_internal+0x594/0xc2c [ 205.114698][ T6052] kobject_init_and_add+0x128/0x194 [ 205.115547][ T6052] gfs2_sys_fs_add+0x208/0x428 [ 205.116359][ T6052] gfs2_fill_super+0xe20/0x1a9c [ 205.117347][ T6052] get_tree_bdev+0x35c/0x54c [ 205.118265][ T6052] gfs2_get_tree+0x58/0x1b8 [ 205.119083][ T6052] vfs_get_tree+0x90/0x278 [ 205.119887][ T6052] do_new_mount+0x228/0x804 [ 205.120704][ T6052] path_mount+0x57c/0xfe8 [ 205.121496][ T6052] __arm64_sys_mount+0x488/0x5f8 [ 205.122399][ T6052] invoke_syscall+0x98/0x28c [ 205.123233][ T6052] el0_svc_common+0x13c/0x258 [ 205.124074][ T6052] do_el0_svc+0x5c/0x140 [ 205.124767][ T6052] el0_svc+0x78/0x1d0 [ 205.125463][ T6052] el0t_64_sync_handler+0xcc/0xe4 [ 205.126355][ T6052] el0t_64_sync+0x1a0/0x1a4 [ 205.128989][ T6052] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.131177][ T6052] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.263377][ T6054] loop1: detected capacity change from 0 to 32768 [ 205.270869][ T6054] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.272113][ T6054] CPU: 1 PID: 6054 Comm: syz.1.586 Not tainted syzkaller #0 [ 205.273285][ T6054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 205.274938][ T6054] Call trace: [ 205.275425][ T6054] dump_backtrace+0x0/0x458 [ 205.276133][ T6054] show_stack+0x2c/0x3c [ 205.276829][ T6054] __dump_stack+0x30/0x40 [ 205.277571][ T6054] dump_stack_lvl+0xf4/0x15c [ 205.278435][ T6054] dump_stack+0x1c/0x5c [ 205.279211][ T6054] sysfs_create_dir_ns+0x244/0x264 [ 205.280154][ T6054] kobject_add_internal+0x594/0xc2c [ 205.281039][ T6054] kobject_init_and_add+0x128/0x194 [ 205.281960][ T6054] gfs2_sys_fs_add+0x208/0x428 [ 205.282789][ T6054] gfs2_fill_super+0xe20/0x1a9c [ 205.283633][ T6054] get_tree_bdev+0x35c/0x54c [ 205.284378][ T6054] gfs2_get_tree+0x58/0x1b8 [ 205.285116][ T6054] vfs_get_tree+0x90/0x278 [ 205.285843][ T6054] do_new_mount+0x228/0x804 [ 205.286629][ T6054] path_mount+0x57c/0xfe8 [ 205.287374][ T6054] __arm64_sys_mount+0x488/0x5f8 [ 205.288249][ T6054] invoke_syscall+0x98/0x28c [ 205.289075][ T6054] el0_svc_common+0x13c/0x258 [ 205.289916][ T6054] do_el0_svc+0x5c/0x140 [ 205.290695][ T6054] el0_svc+0x78/0x1d0 [ 205.291355][ T6054] el0t_64_sync_handler+0xcc/0xe4 [ 205.292216][ T6054] el0t_64_sync+0x1a0/0x1a4 [ 205.293186][ T6054] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.295705][ T6054] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.526370][ T6056] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.527680][ T6056] CPU: 0 PID: 6056 Comm: syz.1.587 Not tainted syzkaller #0 [ 205.528958][ T6056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 205.530747][ T6056] Call trace: [ 205.531341][ T6056] dump_backtrace+0x0/0x458 [ 205.532114][ T6056] show_stack+0x2c/0x3c [ 205.532812][ T6056] __dump_stack+0x30/0x40 [ 205.533577][ T6056] dump_stack_lvl+0xf4/0x15c [ 205.534426][ T6056] dump_stack+0x1c/0x5c [ 205.535140][ T6056] sysfs_create_dir_ns+0x244/0x264 [ 205.536067][ T6056] kobject_add_internal+0x594/0xc2c [ 205.537131][ T6056] kobject_init_and_add+0x128/0x194 [ 205.538191][ T6056] gfs2_sys_fs_add+0x208/0x428 [ 205.539102][ T6056] gfs2_fill_super+0xe20/0x1a9c [ 205.540028][ T6056] get_tree_bdev+0x35c/0x54c [ 205.540943][ T6056] gfs2_get_tree+0x58/0x1b8 [ 205.541808][ T6056] vfs_get_tree+0x90/0x278 [ 205.542689][ T6056] do_new_mount+0x228/0x804 [ 205.543427][ T6056] path_mount+0x57c/0xfe8 [ 205.544138][ T6056] __arm64_sys_mount+0x488/0x5f8 [ 205.544969][ T6056] invoke_syscall+0x98/0x28c [ 205.545865][ T6056] el0_svc_common+0x13c/0x258 [ 205.546789][ T6056] do_el0_svc+0x5c/0x140 [ 205.547526][ T6056] el0_svc+0x78/0x1d0 [ 205.548247][ T6056] el0t_64_sync_handler+0xcc/0xe4 [ 205.549152][ T6056] el0t_64_sync+0x1a0/0x1a4 [ 205.551568][ T6056] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.553621][ T6056] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.831435][ T6058] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.832718][ T6058] CPU: 1 PID: 6058 Comm: syz.1.588 Not tainted syzkaller #0 [ 205.833878][ T6058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 205.835587][ T6058] Call trace: [ 205.836132][ T6058] dump_backtrace+0x0/0x458 [ 205.836956][ T6058] show_stack+0x2c/0x3c [ 205.837706][ T6058] __dump_stack+0x30/0x40 [ 205.838423][ T6058] dump_stack_lvl+0xf4/0x15c [ 205.839222][ T6058] dump_stack+0x1c/0x5c [ 205.840084][ T6058] sysfs_create_dir_ns+0x244/0x264 [ 205.841148][ T6058] kobject_add_internal+0x594/0xc2c [ 205.842244][ T6058] kobject_init_and_add+0x128/0x194 [ 205.843246][ T6058] gfs2_sys_fs_add+0x208/0x428 [ 205.844273][ T6058] gfs2_fill_super+0xe20/0x1a9c [ 205.845189][ T6058] get_tree_bdev+0x35c/0x54c [ 205.846064][ T6058] gfs2_get_tree+0x58/0x1b8 [ 205.846892][ T6058] vfs_get_tree+0x90/0x278 [ 205.847649][ T6058] do_new_mount+0x228/0x804 [ 205.848372][ T6058] path_mount+0x57c/0xfe8 [ 205.849155][ T6058] __arm64_sys_mount+0x488/0x5f8 [ 205.849963][ T6058] invoke_syscall+0x98/0x28c [ 205.850762][ T6058] el0_svc_common+0x13c/0x258 [ 205.851589][ T6058] do_el0_svc+0x5c/0x140 [ 205.852300][ T6058] el0_svc+0x78/0x1d0 [ 205.852965][ T6058] el0t_64_sync_handler+0xcc/0xe4 [ 205.853839][ T6058] el0t_64_sync+0x1a0/0x1a4 [ 205.854916][ T6058] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 205.857238][ T6058] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 205.995473][ T6060] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 205.997093][ T6060] CPU: 1 PID: 6060 Comm: syz.1.589 Not tainted syzkaller #0 [ 205.998312][ T6060] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.000060][ T6060] Call trace: [ 206.000610][ T6060] dump_backtrace+0x0/0x458 [ 206.001350][ T6060] show_stack+0x2c/0x3c [ 206.002003][ T6060] __dump_stack+0x30/0x40 [ 206.002705][ T6060] dump_stack_lvl+0xf4/0x15c [ 206.003464][ T6060] dump_stack+0x1c/0x5c [ 206.004128][ T6060] sysfs_create_dir_ns+0x244/0x264 [ 206.004991][ T6060] kobject_add_internal+0x594/0xc2c [ 206.005890][ T6060] kobject_init_and_add+0x128/0x194 [ 206.006852][ T6060] gfs2_sys_fs_add+0x208/0x428 [ 206.007671][ T6060] gfs2_fill_super+0xe20/0x1a9c [ 206.008479][ T6060] get_tree_bdev+0x35c/0x54c [ 206.009253][ T6060] gfs2_get_tree+0x58/0x1b8 [ 206.010186][ T6060] vfs_get_tree+0x90/0x278 [ 206.011117][ T6060] do_new_mount+0x228/0x804 [ 206.012067][ T6060] path_mount+0x57c/0xfe8 [ 206.012976][ T6060] __arm64_sys_mount+0x488/0x5f8 [ 206.013967][ T6060] invoke_syscall+0x98/0x28c [ 206.014746][ T6060] el0_svc_common+0x13c/0x258 [ 206.015551][ T6060] do_el0_svc+0x5c/0x140 [ 206.016245][ T6060] el0_svc+0x78/0x1d0 [ 206.016954][ T6060] el0t_64_sync_handler+0xcc/0xe4 [ 206.017875][ T6060] el0t_64_sync+0x1a0/0x1a4 [ 206.018892][ T6060] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.021066][ T6060] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.207533][ T6062] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.208870][ T6062] CPU: 1 PID: 6062 Comm: syz.1.590 Not tainted syzkaller #0 [ 206.210052][ T6062] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.211825][ T6062] Call trace: [ 206.212404][ T6062] dump_backtrace+0x0/0x458 [ 206.213235][ T6062] show_stack+0x2c/0x3c [ 206.213989][ T6062] __dump_stack+0x30/0x40 [ 206.214902][ T6062] dump_stack_lvl+0xf4/0x15c [ 206.215809][ T6062] dump_stack+0x1c/0x5c [ 206.216667][ T6062] sysfs_create_dir_ns+0x244/0x264 [ 206.217724][ T6062] kobject_add_internal+0x594/0xc2c [ 206.218801][ T6062] kobject_init_and_add+0x128/0x194 [ 206.219802][ T6062] gfs2_sys_fs_add+0x208/0x428 [ 206.220723][ T6062] gfs2_fill_super+0xe20/0x1a9c [ 206.221676][ T6062] get_tree_bdev+0x35c/0x54c [ 206.222577][ T6062] gfs2_get_tree+0x58/0x1b8 [ 206.223437][ T6062] vfs_get_tree+0x90/0x278 [ 206.224199][ T6062] do_new_mount+0x228/0x804 [ 206.224989][ T6062] path_mount+0x57c/0xfe8 [ 206.225713][ T6062] __arm64_sys_mount+0x488/0x5f8 [ 206.226534][ T6062] invoke_syscall+0x98/0x28c [ 206.227308][ T6062] el0_svc_common+0x13c/0x258 [ 206.228123][ T6062] do_el0_svc+0x5c/0x140 [ 206.228871][ T6062] el0_svc+0x78/0x1d0 [ 206.229550][ T6062] el0t_64_sync_handler+0xcc/0xe4 [ 206.230463][ T6062] el0t_64_sync+0x1a0/0x1a4 [ 206.231485][ T6062] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.233728][ T6062] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.387592][ T6064] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.388938][ T6064] CPU: 0 PID: 6064 Comm: syz.1.591 Not tainted syzkaller #0 [ 206.390120][ T6064] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.391943][ T6064] Call trace: [ 206.392590][ T6064] dump_backtrace+0x0/0x458 [ 206.393452][ T6064] show_stack+0x2c/0x3c [ 206.394234][ T6064] __dump_stack+0x30/0x40 [ 206.394953][ T6064] dump_stack_lvl+0xf4/0x15c [ 206.395810][ T6064] dump_stack+0x1c/0x5c [ 206.396583][ T6064] sysfs_create_dir_ns+0x244/0x264 [ 206.397396][ T6064] kobject_add_internal+0x594/0xc2c [ 206.398252][ T6064] kobject_init_and_add+0x128/0x194 [ 206.399117][ T6064] gfs2_sys_fs_add+0x208/0x428 [ 206.399865][ T6064] gfs2_fill_super+0xe20/0x1a9c [ 206.400680][ T6064] get_tree_bdev+0x35c/0x54c [ 206.401502][ T6064] gfs2_get_tree+0x58/0x1b8 [ 206.402235][ T6064] vfs_get_tree+0x90/0x278 [ 206.402995][ T6064] do_new_mount+0x228/0x804 [ 206.403746][ T6064] path_mount+0x57c/0xfe8 [ 206.404472][ T6064] __arm64_sys_mount+0x488/0x5f8 [ 206.405282][ T6064] invoke_syscall+0x98/0x28c [ 206.406068][ T6064] el0_svc_common+0x13c/0x258 [ 206.406894][ T6064] do_el0_svc+0x5c/0x140 [ 206.407606][ T6064] el0_svc+0x78/0x1d0 [ 206.408330][ T6064] el0t_64_sync_handler+0xcc/0xe4 [ 206.409225][ T6064] el0t_64_sync+0x1a0/0x1a4 [ 206.410223][ T6064] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.412218][ T6064] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.591091][ T6066] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.592514][ T6066] CPU: 0 PID: 6066 Comm: syz.1.592 Not tainted syzkaller #0 [ 206.593753][ T6066] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.595499][ T6066] Call trace: [ 206.596035][ T6066] dump_backtrace+0x0/0x458 [ 206.596855][ T6066] show_stack+0x2c/0x3c [ 206.597566][ T6066] __dump_stack+0x30/0x40 [ 206.598305][ T6066] dump_stack_lvl+0xf4/0x15c [ 206.599017][ T6066] dump_stack+0x1c/0x5c [ 206.599707][ T6066] sysfs_create_dir_ns+0x244/0x264 [ 206.600482][ T6066] kobject_add_internal+0x594/0xc2c [ 206.601354][ T6066] kobject_init_and_add+0x128/0x194 [ 206.602164][ T6066] gfs2_sys_fs_add+0x208/0x428 [ 206.602940][ T6066] gfs2_fill_super+0xe20/0x1a9c [ 206.603725][ T6066] get_tree_bdev+0x35c/0x54c [ 206.604500][ T6066] gfs2_get_tree+0x58/0x1b8 [ 206.605279][ T6066] vfs_get_tree+0x90/0x278 [ 206.606009][ T6066] do_new_mount+0x228/0x804 [ 206.606764][ T6066] path_mount+0x57c/0xfe8 [ 206.607515][ T6066] __arm64_sys_mount+0x488/0x5f8 [ 206.608404][ T6066] invoke_syscall+0x98/0x28c [ 206.609169][ T6066] el0_svc_common+0x13c/0x258 [ 206.610007][ T6066] do_el0_svc+0x5c/0x140 [ 206.610696][ T6066] el0_svc+0x78/0x1d0 [ 206.611355][ T6066] el0t_64_sync_handler+0xcc/0xe4 [ 206.612207][ T6066] el0t_64_sync+0x1a0/0x1a4 [ 206.613711][ T6066] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.615948][ T6066] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.761704][ T6068] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.763187][ T6068] CPU: 0 PID: 6068 Comm: syz.1.593 Not tainted syzkaller #0 [ 206.764352][ T6068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.766131][ T6068] Call trace: [ 206.766707][ T6068] dump_backtrace+0x0/0x458 [ 206.767505][ T6068] show_stack+0x2c/0x3c [ 206.768253][ T6068] __dump_stack+0x30/0x40 [ 206.769036][ T6068] dump_stack_lvl+0xf4/0x15c [ 206.769890][ T6068] dump_stack+0x1c/0x5c [ 206.770651][ T6068] sysfs_create_dir_ns+0x244/0x264 [ 206.771590][ T6068] kobject_add_internal+0x594/0xc2c [ 206.772570][ T6068] kobject_init_and_add+0x128/0x194 [ 206.773544][ T6068] gfs2_sys_fs_add+0x208/0x428 [ 206.774406][ T6068] gfs2_fill_super+0xe20/0x1a9c [ 206.775274][ T6068] get_tree_bdev+0x35c/0x54c [ 206.776113][ T6068] gfs2_get_tree+0x58/0x1b8 [ 206.776935][ T6068] vfs_get_tree+0x90/0x278 [ 206.777749][ T6068] do_new_mount+0x228/0x804 [ 206.778578][ T6068] path_mount+0x57c/0xfe8 [ 206.779339][ T6068] __arm64_sys_mount+0x488/0x5f8 [ 206.780237][ T6068] invoke_syscall+0x98/0x28c [ 206.781046][ T6068] el0_svc_common+0x13c/0x258 [ 206.781883][ T6068] do_el0_svc+0x5c/0x140 [ 206.782607][ T6068] el0_svc+0x78/0x1d0 [ 206.783281][ T6068] el0t_64_sync_handler+0xcc/0xe4 [ 206.784169][ T6068] el0t_64_sync+0x1a0/0x1a4 [ 206.785209][ T6068] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 206.787463][ T6068] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 206.982142][ T6070] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 206.983463][ T6070] CPU: 1 PID: 6070 Comm: syz.1.594 Not tainted syzkaller #0 [ 206.984725][ T6070] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 206.986747][ T6070] Call trace: [ 206.987386][ T6070] dump_backtrace+0x0/0x458 [ 206.988271][ T6070] show_stack+0x2c/0x3c [ 206.988972][ T6070] __dump_stack+0x30/0x40 [ 206.989692][ T6070] dump_stack_lvl+0xf4/0x15c [ 206.990460][ T6070] dump_stack+0x1c/0x5c [ 206.991325][ T6070] sysfs_create_dir_ns+0x244/0x264 [ 206.992274][ T6070] kobject_add_internal+0x594/0xc2c [ 206.993252][ T6070] kobject_init_and_add+0x128/0x194 [ 206.994238][ T6070] gfs2_sys_fs_add+0x208/0x428 [ 206.995061][ T6070] gfs2_fill_super+0xe20/0x1a9c [ 206.995951][ T6070] get_tree_bdev+0x35c/0x54c [ 206.996736][ T6070] gfs2_get_tree+0x58/0x1b8 [ 206.997560][ T6070] vfs_get_tree+0x90/0x278 [ 206.998349][ T6070] do_new_mount+0x228/0x804 [ 206.999138][ T6070] path_mount+0x57c/0xfe8 [ 206.999936][ T6070] __arm64_sys_mount+0x488/0x5f8 [ 207.000785][ T6070] invoke_syscall+0x98/0x28c [ 207.001788][ T6070] el0_svc_common+0x13c/0x258 [ 207.002682][ T6070] do_el0_svc+0x5c/0x140 [ 207.003485][ T6070] el0_svc+0x78/0x1d0 [ 207.004238][ T6070] el0t_64_sync_handler+0xcc/0xe4 [ 207.005204][ T6070] el0t_64_sync+0x1a0/0x1a4 [ 207.007532][ T6070] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.009707][ T6070] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.245144][ T6072] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.246536][ T6072] CPU: 0 PID: 6072 Comm: syz.1.595 Not tainted syzkaller #0 [ 207.247763][ T6072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 207.249281][ T6072] Call trace: [ 207.249769][ T6072] dump_backtrace+0x0/0x458 [ 207.250526][ T6072] show_stack+0x2c/0x3c [ 207.251235][ T6072] __dump_stack+0x30/0x40 [ 207.251902][ T6072] dump_stack_lvl+0xf4/0x15c [ 207.252611][ T6072] dump_stack+0x1c/0x5c [ 207.253316][ T6072] sysfs_create_dir_ns+0x244/0x264 [ 207.254178][ T6072] kobject_add_internal+0x594/0xc2c [ 207.254964][ T6072] kobject_init_and_add+0x128/0x194 [ 207.255803][ T6072] gfs2_sys_fs_add+0x208/0x428 [ 207.256603][ T6072] gfs2_fill_super+0xe20/0x1a9c [ 207.257457][ T6072] get_tree_bdev+0x35c/0x54c [ 207.258240][ T6072] gfs2_get_tree+0x58/0x1b8 [ 207.259015][ T6072] vfs_get_tree+0x90/0x278 [ 207.259767][ T6072] do_new_mount+0x228/0x804 [ 207.260533][ T6072] path_mount+0x57c/0xfe8 [ 207.261239][ T6072] __arm64_sys_mount+0x488/0x5f8 [ 207.262046][ T6072] invoke_syscall+0x98/0x28c [ 207.262774][ T6072] el0_svc_common+0x13c/0x258 [ 207.263535][ T6072] do_el0_svc+0x5c/0x140 [ 207.264212][ T6072] el0_svc+0x78/0x1d0 [ 207.264851][ T6072] el0t_64_sync_handler+0xcc/0xe4 [ 207.265709][ T6072] el0t_64_sync+0x1a0/0x1a4 [ 207.266780][ T6072] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.269072][ T6072] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.457605][ T6074] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.458854][ T6074] CPU: 0 PID: 6074 Comm: syz.1.596 Not tainted syzkaller #0 [ 207.460061][ T6074] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 207.462083][ T6074] Call trace: [ 207.462737][ T6074] dump_backtrace+0x0/0x458 [ 207.463680][ T6074] show_stack+0x2c/0x3c [ 207.464473][ T6074] __dump_stack+0x30/0x40 [ 207.465283][ T6074] dump_stack_lvl+0xf4/0x15c [ 207.466114][ T6074] dump_stack+0x1c/0x5c [ 207.466913][ T6074] sysfs_create_dir_ns+0x244/0x264 [ 207.467898][ T6074] kobject_add_internal+0x594/0xc2c [ 207.468905][ T6074] kobject_init_and_add+0x128/0x194 [ 207.469884][ T6074] gfs2_sys_fs_add+0x208/0x428 [ 207.470785][ T6074] gfs2_fill_super+0xe20/0x1a9c [ 207.471684][ T6074] get_tree_bdev+0x35c/0x54c [ 207.472523][ T6074] gfs2_get_tree+0x58/0x1b8 [ 207.473357][ T6074] vfs_get_tree+0x90/0x278 [ 207.474212][ T6074] do_new_mount+0x228/0x804 [ 207.475086][ T6074] path_mount+0x57c/0xfe8 [ 207.475913][ T6074] __arm64_sys_mount+0x488/0x5f8 [ 207.476786][ T6074] invoke_syscall+0x98/0x28c [ 207.477570][ T6074] el0_svc_common+0x13c/0x258 [ 207.478389][ T6074] do_el0_svc+0x5c/0x140 [ 207.479108][ T6074] el0_svc+0x78/0x1d0 [ 207.479787][ T6074] el0t_64_sync_handler+0xcc/0xe4 [ 207.480586][ T6074] el0t_64_sync+0x1a0/0x1a4 [ 207.481694][ T6074] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.483793][ T6074] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.623175][ T6076] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.624472][ T6076] CPU: 1 PID: 6076 Comm: syz.1.597 Not tainted syzkaller #0 [ 207.625696][ T6076] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 207.627584][ T6076] Call trace: [ 207.628189][ T6076] dump_backtrace+0x0/0x458 [ 207.629018][ T6076] show_stack+0x2c/0x3c [ 207.629747][ T6076] __dump_stack+0x30/0x40 [ 207.630549][ T6076] dump_stack_lvl+0xf4/0x15c [ 207.631412][ T6076] dump_stack+0x1c/0x5c [ 207.632152][ T6076] sysfs_create_dir_ns+0x244/0x264 [ 207.633095][ T6076] kobject_add_internal+0x594/0xc2c [ 207.634072][ T6076] kobject_init_and_add+0x128/0x194 [ 207.635042][ T6076] gfs2_sys_fs_add+0x208/0x428 [ 207.636011][ T6076] gfs2_fill_super+0xe20/0x1a9c [ 207.637023][ T6076] get_tree_bdev+0x35c/0x54c [ 207.637977][ T6076] gfs2_get_tree+0x58/0x1b8 [ 207.638852][ T6076] vfs_get_tree+0x90/0x278 [ 207.639771][ T6076] do_new_mount+0x228/0x804 [ 207.640703][ T6076] path_mount+0x57c/0xfe8 [ 207.641609][ T6076] __arm64_sys_mount+0x488/0x5f8 [ 207.642466][ T6076] invoke_syscall+0x98/0x28c [ 207.643317][ T6076] el0_svc_common+0x13c/0x258 [ 207.644170][ T6076] do_el0_svc+0x5c/0x140 [ 207.644958][ T6076] el0_svc+0x78/0x1d0 [ 207.645622][ T6076] el0t_64_sync_handler+0xcc/0xe4 [ 207.646553][ T6076] el0t_64_sync+0x1a0/0x1a4 [ 207.648804][ T6076] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.650992][ T6076] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 207.860650][ T6078] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 207.861959][ T6078] CPU: 0 PID: 6078 Comm: syz.1.598 Not tainted syzkaller #0 [ 207.863162][ T6078] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 207.864887][ T6078] Call trace: [ 207.865412][ T6078] dump_backtrace+0x0/0x458 [ 207.866106][ T6078] show_stack+0x2c/0x3c [ 207.866807][ T6078] __dump_stack+0x30/0x40 [ 207.867566][ T6078] dump_stack_lvl+0xf4/0x15c [ 207.868363][ T6078] dump_stack+0x1c/0x5c [ 207.869067][ T6078] sysfs_create_dir_ns+0x244/0x264 [ 207.869972][ T6078] kobject_add_internal+0x594/0xc2c [ 207.870942][ T6078] kobject_init_and_add+0x128/0x194 [ 207.871863][ T6078] gfs2_sys_fs_add+0x208/0x428 [ 207.872715][ T6078] gfs2_fill_super+0xe20/0x1a9c [ 207.873709][ T6078] get_tree_bdev+0x35c/0x54c [ 207.874541][ T6078] gfs2_get_tree+0x58/0x1b8 [ 207.875385][ T6078] vfs_get_tree+0x90/0x278 [ 207.876242][ T6078] do_new_mount+0x228/0x804 [ 207.877144][ T6078] path_mount+0x57c/0xfe8 [ 207.877995][ T6078] __arm64_sys_mount+0x488/0x5f8 [ 207.879026][ T6078] invoke_syscall+0x98/0x28c [ 207.879905][ T6078] el0_svc_common+0x13c/0x258 [ 207.880825][ T6078] do_el0_svc+0x5c/0x140 [ 207.881609][ T6078] el0_svc+0x78/0x1d0 [ 207.882289][ T6078] el0t_64_sync_handler+0xcc/0xe4 [ 207.883302][ T6078] el0t_64_sync+0x1a0/0x1a4 [ 207.886684][ T6078] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 207.889130][ T6078] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.060331][ T6080] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.061709][ T6080] CPU: 0 PID: 6080 Comm: syz.1.599 Not tainted syzkaller #0 [ 208.062876][ T6080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 208.064593][ T6080] Call trace: [ 208.065161][ T6080] dump_backtrace+0x0/0x458 [ 208.065943][ T6080] show_stack+0x2c/0x3c [ 208.066656][ T6080] __dump_stack+0x30/0x40 [ 208.067414][ T6080] dump_stack_lvl+0xf4/0x15c [ 208.068224][ T6080] dump_stack+0x1c/0x5c [ 208.068917][ T6080] sysfs_create_dir_ns+0x244/0x264 [ 208.069771][ T6080] kobject_add_internal+0x594/0xc2c [ 208.070668][ T6080] kobject_init_and_add+0x128/0x194 [ 208.071554][ T6080] gfs2_sys_fs_add+0x208/0x428 [ 208.072371][ T6080] gfs2_fill_super+0xe20/0x1a9c [ 208.073207][ T6080] get_tree_bdev+0x35c/0x54c [ 208.073975][ T6080] gfs2_get_tree+0x58/0x1b8 [ 208.074716][ T6080] vfs_get_tree+0x90/0x278 [ 208.075437][ T6080] do_new_mount+0x228/0x804 [ 208.076180][ T6080] path_mount+0x57c/0xfe8 [ 208.076930][ T6080] __arm64_sys_mount+0x488/0x5f8 [ 208.077767][ T6080] invoke_syscall+0x98/0x28c [ 208.078477][ T6080] el0_svc_common+0x13c/0x258 [ 208.079248][ T6080] do_el0_svc+0x5c/0x140 [ 208.079930][ T6080] el0_svc+0x78/0x1d0 [ 208.080562][ T6080] el0t_64_sync_handler+0xcc/0xe4 [ 208.081398][ T6080] el0t_64_sync+0x1a0/0x1a4 [ 208.083599][ T6080] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.085800][ T6080] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.303225][ T6082] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.304611][ T6082] CPU: 1 PID: 6082 Comm: syz.1.600 Not tainted syzkaller #0 [ 208.305848][ T6082] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 208.307612][ T6082] Call trace: [ 208.308165][ T6082] dump_backtrace+0x0/0x458 [ 208.308940][ T6082] show_stack+0x2c/0x3c [ 208.309692][ T6082] __dump_stack+0x30/0x40 [ 208.310474][ T6082] dump_stack_lvl+0xf4/0x15c [ 208.311278][ T6082] dump_stack+0x1c/0x5c [ 208.312030][ T6082] sysfs_create_dir_ns+0x244/0x264 [ 208.312915][ T6082] kobject_add_internal+0x594/0xc2c [ 208.313841][ T6082] kobject_init_and_add+0x128/0x194 [ 208.314801][ T6082] gfs2_sys_fs_add+0x208/0x428 [ 208.315669][ T6082] gfs2_fill_super+0xe20/0x1a9c [ 208.316548][ T6082] get_tree_bdev+0x35c/0x54c [ 208.317403][ T6082] gfs2_get_tree+0x58/0x1b8 [ 208.318178][ T6082] vfs_get_tree+0x90/0x278 [ 208.318955][ T6082] do_new_mount+0x228/0x804 [ 208.319762][ T6082] path_mount+0x57c/0xfe8 [ 208.320573][ T6082] __arm64_sys_mount+0x488/0x5f8 [ 208.321502][ T6082] invoke_syscall+0x98/0x28c [ 208.322287][ T6082] el0_svc_common+0x13c/0x258 [ 208.323115][ T6082] do_el0_svc+0x5c/0x140 [ 208.323875][ T6082] el0_svc+0x78/0x1d0 [ 208.324587][ T6082] el0t_64_sync_handler+0xcc/0xe4 [ 208.325486][ T6082] el0t_64_sync+0x1a0/0x1a4 [ 208.326475][ T6082] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.328767][ T6082] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:28 executed programs: 587 [ 208.461735][ T6084] set_capacity_and_notify: 14 callbacks suppressed [ 208.461745][ T6084] loop1: detected capacity change from 0 to 32768 [ 208.501275][ T6084] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.502572][ T6084] CPU: 1 PID: 6084 Comm: syz.1.601 Not tainted syzkaller #0 [ 208.503910][ T6084] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 208.505579][ T6084] Call trace: [ 208.506198][ T6084] dump_backtrace+0x0/0x458 [ 208.507051][ T6084] show_stack+0x2c/0x3c [ 208.507789][ T6084] __dump_stack+0x30/0x40 [ 208.508554][ T6084] dump_stack_lvl+0xf4/0x15c [ 208.509370][ T6084] dump_stack+0x1c/0x5c [ 208.510120][ T6084] sysfs_create_dir_ns+0x244/0x264 [ 208.510980][ T6084] kobject_add_internal+0x594/0xc2c [ 208.512020][ T6084] kobject_init_and_add+0x128/0x194 [ 208.513063][ T6084] gfs2_sys_fs_add+0x208/0x428 [ 208.513990][ T6084] gfs2_fill_super+0xe20/0x1a9c [ 208.514928][ T6084] get_tree_bdev+0x35c/0x54c [ 208.515820][ T6084] gfs2_get_tree+0x58/0x1b8 [ 208.516601][ T6084] vfs_get_tree+0x90/0x278 [ 208.517342][ T6084] do_new_mount+0x228/0x804 [ 208.518260][ T6084] path_mount+0x57c/0xfe8 [ 208.519099][ T6084] __arm64_sys_mount+0x488/0x5f8 [ 208.520127][ T6084] invoke_syscall+0x98/0x28c [ 208.520999][ T6084] el0_svc_common+0x13c/0x258 [ 208.521895][ T6084] do_el0_svc+0x5c/0x140 [ 208.522735][ T6084] el0_svc+0x78/0x1d0 [ 208.523524][ T6084] el0t_64_sync_handler+0xcc/0xe4 [ 208.524557][ T6084] el0t_64_sync+0x1a0/0x1a4 [ 208.527012][ T6084] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.529209][ T6084] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 208.660422][ T6086] loop1: detected capacity change from 0 to 32768 [ 208.774943][ T6086] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 208.776242][ T6086] CPU: 1 PID: 6086 Comm: syz.1.602 Not tainted syzkaller #0 [ 208.777718][ T6086] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 208.779595][ T6086] Call trace: [ 208.780201][ T6086] dump_backtrace+0x0/0x458 [ 208.781043][ T6086] show_stack+0x2c/0x3c [ 208.781788][ T6086] __dump_stack+0x30/0x40 [ 208.782466][ T6086] dump_stack_lvl+0xf4/0x15c [ 208.783242][ T6086] dump_stack+0x1c/0x5c [ 208.783934][ T6086] sysfs_create_dir_ns+0x244/0x264 [ 208.784825][ T6086] kobject_add_internal+0x594/0xc2c [ 208.785926][ T6086] kobject_init_and_add+0x128/0x194 [ 208.786982][ T6086] gfs2_sys_fs_add+0x208/0x428 [ 208.787880][ T6086] gfs2_fill_super+0xe20/0x1a9c [ 208.788807][ T6086] get_tree_bdev+0x35c/0x54c [ 208.789668][ T6086] gfs2_get_tree+0x58/0x1b8 [ 208.790521][ T6086] vfs_get_tree+0x90/0x278 [ 208.791362][ T6086] do_new_mount+0x228/0x804 [ 208.792224][ T6086] path_mount+0x57c/0xfe8 [ 208.793024][ T6086] __arm64_sys_mount+0x488/0x5f8 [ 208.793957][ T6086] invoke_syscall+0x98/0x28c [ 208.794835][ T6086] el0_svc_common+0x13c/0x258 [ 208.795812][ T6086] do_el0_svc+0x5c/0x140 [ 208.796573][ T6086] el0_svc+0x78/0x1d0 [ 208.797268][ T6086] el0t_64_sync_handler+0xcc/0xe4 [ 208.798083][ T6086] el0t_64_sync+0x1a0/0x1a4 [ 208.800293][ T6086] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 208.802507][ T6086] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.044817][ T6088] loop1: detected capacity change from 0 to 32768 [ 209.082674][ T6088] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.083988][ T6088] CPU: 0 PID: 6088 Comm: syz.1.603 Not tainted syzkaller #0 [ 209.085169][ T6088] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 209.086756][ T6088] Call trace: [ 209.087329][ T6088] dump_backtrace+0x0/0x458 [ 209.088235][ T6088] show_stack+0x2c/0x3c [ 209.089022][ T6088] __dump_stack+0x30/0x40 [ 209.089762][ T6088] dump_stack_lvl+0xf4/0x15c [ 209.090675][ T6088] dump_stack+0x1c/0x5c [ 209.091500][ T6088] sysfs_create_dir_ns+0x244/0x264 [ 209.092530][ T6088] kobject_add_internal+0x594/0xc2c [ 209.093589][ T6088] kobject_init_and_add+0x128/0x194 [ 209.094485][ T6088] gfs2_sys_fs_add+0x208/0x428 [ 209.095285][ T6088] gfs2_fill_super+0xe20/0x1a9c [ 209.096248][ T6088] get_tree_bdev+0x35c/0x54c [ 209.097149][ T6088] gfs2_get_tree+0x58/0x1b8 [ 209.097950][ T6088] vfs_get_tree+0x90/0x278 [ 209.098671][ T6088] do_new_mount+0x228/0x804 [ 209.099402][ T6088] path_mount+0x57c/0xfe8 [ 209.100145][ T6088] __arm64_sys_mount+0x488/0x5f8 [ 209.100991][ T6088] invoke_syscall+0x98/0x28c [ 209.101782][ T6088] el0_svc_common+0x13c/0x258 [ 209.102618][ T6088] do_el0_svc+0x5c/0x140 [ 209.103405][ T6088] el0_svc+0x78/0x1d0 [ 209.104112][ T6088] el0t_64_sync_handler+0xcc/0xe4 [ 209.105010][ T6088] el0t_64_sync+0x1a0/0x1a4 [ 209.106027][ T6088] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.108546][ T6088] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.241985][ T6090] loop1: detected capacity change from 0 to 32768 [ 209.298107][ T6090] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.299367][ T6090] CPU: 0 PID: 6090 Comm: syz.1.604 Not tainted syzkaller #0 [ 209.300574][ T6090] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 209.302177][ T6090] Call trace: [ 209.302628][ T6090] dump_backtrace+0x0/0x458 [ 209.303365][ T6090] show_stack+0x2c/0x3c [ 209.304009][ T6090] __dump_stack+0x30/0x40 [ 209.304764][ T6090] dump_stack_lvl+0xf4/0x15c [ 209.305549][ T6090] dump_stack+0x1c/0x5c [ 209.306193][ T6090] sysfs_create_dir_ns+0x244/0x264 [ 209.307026][ T6090] kobject_add_internal+0x594/0xc2c [ 209.307928][ T6090] kobject_init_and_add+0x128/0x194 [ 209.308824][ T6090] gfs2_sys_fs_add+0x208/0x428 [ 209.309657][ T6090] gfs2_fill_super+0xe20/0x1a9c [ 209.310489][ T6090] get_tree_bdev+0x35c/0x54c [ 209.311276][ T6090] gfs2_get_tree+0x58/0x1b8 [ 209.311998][ T6090] vfs_get_tree+0x90/0x278 [ 209.312716][ T6090] do_new_mount+0x228/0x804 [ 209.313504][ T6090] path_mount+0x57c/0xfe8 [ 209.314259][ T6090] __arm64_sys_mount+0x488/0x5f8 [ 209.315092][ T6090] invoke_syscall+0x98/0x28c [ 209.315912][ T6090] el0_svc_common+0x13c/0x258 [ 209.316698][ T6090] do_el0_svc+0x5c/0x140 [ 209.317410][ T6090] el0_svc+0x78/0x1d0 [ 209.318038][ T6090] el0t_64_sync_handler+0xcc/0xe4 [ 209.318854][ T6090] el0t_64_sync+0x1a0/0x1a4 [ 209.320710][ T6090] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.323095][ T6090] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.457906][ T6092] loop1: detected capacity change from 0 to 32768 [ 209.507463][ T6092] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.508697][ T6092] CPU: 0 PID: 6092 Comm: syz.1.605 Not tainted syzkaller #0 [ 209.509886][ T6092] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 209.511584][ T6092] Call trace: [ 209.512117][ T6092] dump_backtrace+0x0/0x458 [ 209.512859][ T6092] show_stack+0x2c/0x3c [ 209.513524][ T6092] __dump_stack+0x30/0x40 [ 209.514208][ T6092] dump_stack_lvl+0xf4/0x15c [ 209.514955][ T6092] dump_stack+0x1c/0x5c [ 209.515604][ T6092] sysfs_create_dir_ns+0x244/0x264 [ 209.516415][ T6092] kobject_add_internal+0x594/0xc2c [ 209.517255][ T6092] kobject_init_and_add+0x128/0x194 [ 209.518080][ T6092] gfs2_sys_fs_add+0x208/0x428 [ 209.518893][ T6092] gfs2_fill_super+0xe20/0x1a9c [ 209.519735][ T6092] get_tree_bdev+0x35c/0x54c [ 209.520505][ T6092] gfs2_get_tree+0x58/0x1b8 [ 209.521289][ T6092] vfs_get_tree+0x90/0x278 [ 209.522062][ T6092] do_new_mount+0x228/0x804 [ 209.522811][ T6092] path_mount+0x57c/0xfe8 [ 209.523566][ T6092] __arm64_sys_mount+0x488/0x5f8 [ 209.524398][ T6092] invoke_syscall+0x98/0x28c [ 209.525205][ T6092] el0_svc_common+0x13c/0x258 [ 209.525988][ T6092] do_el0_svc+0x5c/0x140 [ 209.526711][ T6092] el0_svc+0x78/0x1d0 [ 209.527378][ T6092] el0t_64_sync_handler+0xcc/0xe4 [ 209.528262][ T6092] el0t_64_sync+0x1a0/0x1a4 [ 209.529819][ T6092] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.532075][ T6092] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.663731][ T6094] loop1: detected capacity change from 0 to 32768 [ 209.671579][ T6094] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.672878][ T6094] CPU: 1 PID: 6094 Comm: syz.1.606 Not tainted syzkaller #0 [ 209.674069][ T6094] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 209.675990][ T6094] Call trace: [ 209.676565][ T6094] dump_backtrace+0x0/0x458 [ 209.677407][ T6094] show_stack+0x2c/0x3c [ 209.678273][ T6094] __dump_stack+0x30/0x40 [ 209.679109][ T6094] dump_stack_lvl+0xf4/0x15c [ 209.679983][ T6094] dump_stack+0x1c/0x5c [ 209.680795][ T6094] sysfs_create_dir_ns+0x244/0x264 [ 209.681794][ T6094] kobject_add_internal+0x594/0xc2c [ 209.682738][ T6094] kobject_init_and_add+0x128/0x194 [ 209.683683][ T6094] gfs2_sys_fs_add+0x208/0x428 [ 209.684481][ T6094] gfs2_fill_super+0xe20/0x1a9c [ 209.685468][ T6094] get_tree_bdev+0x35c/0x54c [ 209.686230][ T6094] gfs2_get_tree+0x58/0x1b8 [ 209.687137][ T6094] vfs_get_tree+0x90/0x278 [ 209.688018][ T6094] do_new_mount+0x228/0x804 [ 209.688823][ T6094] path_mount+0x57c/0xfe8 [ 209.689597][ T6094] __arm64_sys_mount+0x488/0x5f8 [ 209.690440][ T6094] invoke_syscall+0x98/0x28c [ 209.691247][ T6094] el0_svc_common+0x13c/0x258 [ 209.692040][ T6094] do_el0_svc+0x5c/0x140 [ 209.692891][ T6094] el0_svc+0x78/0x1d0 [ 209.693700][ T6094] el0t_64_sync_handler+0xcc/0xe4 [ 209.694631][ T6094] el0t_64_sync+0x1a0/0x1a4 [ 209.696902][ T6094] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.699058][ T6094] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.831274][ T6096] loop1: detected capacity change from 0 to 32768 [ 209.839080][ T6096] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 209.840261][ T6096] CPU: 0 PID: 6096 Comm: syz.1.607 Not tainted syzkaller #0 [ 209.841445][ T6096] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 209.843353][ T6096] Call trace: [ 209.843970][ T6096] dump_backtrace+0x0/0x458 [ 209.844803][ T6096] show_stack+0x2c/0x3c [ 209.845532][ T6096] __dump_stack+0x30/0x40 [ 209.846307][ T6096] dump_stack_lvl+0xf4/0x15c [ 209.847183][ T6096] dump_stack+0x1c/0x5c [ 209.847945][ T6096] sysfs_create_dir_ns+0x244/0x264 [ 209.848966][ T6096] kobject_add_internal+0x594/0xc2c [ 209.849939][ T6096] kobject_init_and_add+0x128/0x194 [ 209.850902][ T6096] gfs2_sys_fs_add+0x208/0x428 [ 209.851791][ T6096] gfs2_fill_super+0xe20/0x1a9c [ 209.852683][ T6096] get_tree_bdev+0x35c/0x54c [ 209.853547][ T6096] gfs2_get_tree+0x58/0x1b8 [ 209.854385][ T6096] vfs_get_tree+0x90/0x278 [ 209.855273][ T6096] do_new_mount+0x228/0x804 [ 209.856179][ T6096] path_mount+0x57c/0xfe8 [ 209.856994][ T6096] __arm64_sys_mount+0x488/0x5f8 [ 209.857938][ T6096] invoke_syscall+0x98/0x28c [ 209.858761][ T6096] el0_svc_common+0x13c/0x258 [ 209.859689][ T6096] do_el0_svc+0x5c/0x140 [ 209.860455][ T6096] el0_svc+0x78/0x1d0 [ 209.861099][ T6096] el0t_64_sync_handler+0xcc/0xe4 [ 209.861955][ T6096] el0t_64_sync+0x1a0/0x1a4 [ 209.862827][ T6096] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 209.865017][ T6096] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 209.926322][ T4146] Bluetooth: hci1: command 0x0406 tx timeout [ 210.003886][ T6098] loop1: detected capacity change from 0 to 32768 [ 210.008379][ T6098] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.009744][ T6098] CPU: 0 PID: 6098 Comm: syz.1.608 Not tainted syzkaller #0 [ 210.010953][ T6098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.012853][ T6098] Call trace: [ 210.013433][ T6098] dump_backtrace+0x0/0x458 [ 210.014246][ T6098] show_stack+0x2c/0x3c [ 210.015008][ T6098] __dump_stack+0x30/0x40 [ 210.015712][ T6098] dump_stack_lvl+0xf4/0x15c [ 210.016485][ T6098] dump_stack+0x1c/0x5c [ 210.017280][ T6098] sysfs_create_dir_ns+0x244/0x264 [ 210.018249][ T6098] kobject_add_internal+0x594/0xc2c [ 210.019248][ T6098] kobject_init_and_add+0x128/0x194 [ 210.020150][ T6098] gfs2_sys_fs_add+0x208/0x428 [ 210.020988][ T6098] gfs2_fill_super+0xe20/0x1a9c [ 210.021755][ T6098] get_tree_bdev+0x35c/0x54c [ 210.022530][ T6098] gfs2_get_tree+0x58/0x1b8 [ 210.023266][ T6098] vfs_get_tree+0x90/0x278 [ 210.024006][ T6098] do_new_mount+0x228/0x804 [ 210.024797][ T6098] path_mount+0x57c/0xfe8 [ 210.025552][ T6098] __arm64_sys_mount+0x488/0x5f8 [ 210.026401][ T6098] invoke_syscall+0x98/0x28c [ 210.027206][ T6098] el0_svc_common+0x13c/0x258 [ 210.028018][ T6098] do_el0_svc+0x5c/0x140 [ 210.028720][ T6098] el0_svc+0x78/0x1d0 [ 210.029397][ T6098] el0t_64_sync_handler+0xcc/0xe4 [ 210.030275][ T6098] el0t_64_sync+0x1a0/0x1a4 [ 210.032486][ T6098] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.034724][ T6098] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.167673][ T6100] loop1: detected capacity change from 0 to 32768 [ 210.175068][ T6100] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.176472][ T6100] CPU: 1 PID: 6100 Comm: syz.1.609 Not tainted syzkaller #0 [ 210.177685][ T6100] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.179324][ T6100] Call trace: [ 210.179861][ T6100] dump_backtrace+0x0/0x458 [ 210.180632][ T6100] show_stack+0x2c/0x3c [ 210.181345][ T6100] __dump_stack+0x30/0x40 [ 210.182096][ T6100] dump_stack_lvl+0xf4/0x15c [ 210.182884][ T6100] dump_stack+0x1c/0x5c [ 210.183579][ T6100] sysfs_create_dir_ns+0x244/0x264 [ 210.184478][ T6100] kobject_add_internal+0x594/0xc2c [ 210.185466][ T6100] kobject_init_and_add+0x128/0x194 [ 210.186455][ T6100] gfs2_sys_fs_add+0x208/0x428 [ 210.187306][ T6100] gfs2_fill_super+0xe20/0x1a9c [ 210.188085][ T6100] get_tree_bdev+0x35c/0x54c [ 210.188876][ T6100] gfs2_get_tree+0x58/0x1b8 [ 210.189633][ T6100] vfs_get_tree+0x90/0x278 [ 210.190416][ T6100] do_new_mount+0x228/0x804 [ 210.191204][ T6100] path_mount+0x57c/0xfe8 [ 210.191966][ T6100] __arm64_sys_mount+0x488/0x5f8 [ 210.192830][ T6100] invoke_syscall+0x98/0x28c [ 210.193639][ T6100] el0_svc_common+0x13c/0x258 [ 210.194445][ T6100] do_el0_svc+0x5c/0x140 [ 210.195181][ T6100] el0_svc+0x78/0x1d0 [ 210.195875][ T6100] el0t_64_sync_handler+0xcc/0xe4 [ 210.196741][ T6100] el0t_64_sync+0x1a0/0x1a4 [ 210.197649][ T6100] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.199810][ T6100] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.330580][ T6102] loop1: detected capacity change from 0 to 32768 [ 210.376038][ T6102] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.377474][ T6102] CPU: 0 PID: 6102 Comm: syz.1.610 Not tainted syzkaller #0 [ 210.378672][ T6102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.380273][ T6102] Call trace: [ 210.380800][ T6102] dump_backtrace+0x0/0x458 [ 210.381542][ T6102] show_stack+0x2c/0x3c [ 210.382189][ T6102] __dump_stack+0x30/0x40 [ 210.382857][ T6102] dump_stack_lvl+0xf4/0x15c [ 210.383572][ T6102] dump_stack+0x1c/0x5c [ 210.384220][ T6102] sysfs_create_dir_ns+0x244/0x264 [ 210.385034][ T6102] kobject_add_internal+0x594/0xc2c [ 210.385884][ T6102] kobject_init_and_add+0x128/0x194 [ 210.386781][ T6102] gfs2_sys_fs_add+0x208/0x428 [ 210.387647][ T6102] gfs2_fill_super+0xe20/0x1a9c [ 210.388531][ T6102] get_tree_bdev+0x35c/0x54c [ 210.389353][ T6102] gfs2_get_tree+0x58/0x1b8 [ 210.390154][ T6102] vfs_get_tree+0x90/0x278 [ 210.390964][ T6102] do_new_mount+0x228/0x804 [ 210.391784][ T6102] path_mount+0x57c/0xfe8 [ 210.392558][ T6102] __arm64_sys_mount+0x488/0x5f8 [ 210.393427][ T6102] invoke_syscall+0x98/0x28c [ 210.394240][ T6102] el0_svc_common+0x13c/0x258 [ 210.395070][ T6102] do_el0_svc+0x5c/0x140 [ 210.395810][ T6102] el0_svc+0x78/0x1d0 [ 210.396486][ T6102] el0t_64_sync_handler+0xcc/0xe4 [ 210.397326][ T6102] el0t_64_sync+0x1a0/0x1a4 [ 210.399651][ T6102] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.401969][ T6102] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.543436][ T6104] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.544747][ T6104] CPU: 1 PID: 6104 Comm: syz.1.611 Not tainted syzkaller #0 [ 210.545994][ T6104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.547717][ T6104] Call trace: [ 210.548275][ T6104] dump_backtrace+0x0/0x458 [ 210.549192][ T6104] show_stack+0x2c/0x3c [ 210.549934][ T6104] __dump_stack+0x30/0x40 [ 210.550688][ T6104] dump_stack_lvl+0xf4/0x15c [ 210.551521][ T6104] dump_stack+0x1c/0x5c [ 210.552275][ T6104] sysfs_create_dir_ns+0x244/0x264 [ 210.553202][ T6104] kobject_add_internal+0x594/0xc2c [ 210.554148][ T6104] kobject_init_and_add+0x128/0x194 [ 210.555107][ T6104] gfs2_sys_fs_add+0x208/0x428 [ 210.555985][ T6104] gfs2_fill_super+0xe20/0x1a9c [ 210.556872][ T6104] get_tree_bdev+0x35c/0x54c [ 210.557715][ T6104] gfs2_get_tree+0x58/0x1b8 [ 210.558549][ T6104] vfs_get_tree+0x90/0x278 [ 210.559316][ T6104] do_new_mount+0x228/0x804 [ 210.560096][ T6104] path_mount+0x57c/0xfe8 [ 210.560875][ T6104] __arm64_sys_mount+0x488/0x5f8 [ 210.561780][ T6104] invoke_syscall+0x98/0x28c [ 210.562629][ T6104] el0_svc_common+0x13c/0x258 [ 210.563486][ T6104] do_el0_svc+0x5c/0x140 [ 210.564229][ T6104] el0_svc+0x78/0x1d0 [ 210.564943][ T6104] el0t_64_sync_handler+0xcc/0xe4 [ 210.565856][ T6104] el0t_64_sync+0x1a0/0x1a4 [ 210.567035][ T6104] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.569370][ T6104] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.738052][ T6106] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.739326][ T6106] CPU: 1 PID: 6106 Comm: syz.1.612 Not tainted syzkaller #0 [ 210.740592][ T6106] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.742453][ T6106] Call trace: [ 210.743052][ T6106] dump_backtrace+0x0/0x458 [ 210.743865][ T6106] show_stack+0x2c/0x3c [ 210.744614][ T6106] __dump_stack+0x30/0x40 [ 210.745423][ T6106] dump_stack_lvl+0xf4/0x15c [ 210.746301][ T6106] dump_stack+0x1c/0x5c [ 210.747086][ T6106] sysfs_create_dir_ns+0x244/0x264 [ 210.748045][ T6106] kobject_add_internal+0x594/0xc2c [ 210.749047][ T6106] kobject_init_and_add+0x128/0x194 [ 210.750007][ T6106] gfs2_sys_fs_add+0x208/0x428 [ 210.750859][ T6106] gfs2_fill_super+0xe20/0x1a9c [ 210.751714][ T6106] get_tree_bdev+0x35c/0x54c [ 210.752513][ T6106] gfs2_get_tree+0x58/0x1b8 [ 210.753300][ T6106] vfs_get_tree+0x90/0x278 [ 210.754085][ T6106] do_new_mount+0x228/0x804 [ 210.754901][ T6106] path_mount+0x57c/0xfe8 [ 210.755699][ T6106] __arm64_sys_mount+0x488/0x5f8 [ 210.756559][ T6106] invoke_syscall+0x98/0x28c [ 210.757348][ T6106] el0_svc_common+0x13c/0x258 [ 210.758157][ T6106] do_el0_svc+0x5c/0x140 [ 210.758903][ T6106] el0_svc+0x78/0x1d0 [ 210.759626][ T6106] el0t_64_sync_handler+0xcc/0xe4 [ 210.760580][ T6106] el0t_64_sync+0x1a0/0x1a4 [ 210.761794][ T6106] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.763985][ T6106] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 210.961801][ T6108] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 210.963115][ T6108] CPU: 0 PID: 6108 Comm: syz.1.613 Not tainted syzkaller #0 [ 210.964407][ T6108] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 210.966024][ T6108] Call trace: [ 210.966554][ T6108] dump_backtrace+0x0/0x458 [ 210.967296][ T6108] show_stack+0x2c/0x3c [ 210.968011][ T6108] __dump_stack+0x30/0x40 [ 210.968721][ T6108] dump_stack_lvl+0xf4/0x15c [ 210.969472][ T6108] dump_stack+0x1c/0x5c [ 210.970298][ T6108] sysfs_create_dir_ns+0x244/0x264 [ 210.971322][ T6108] kobject_add_internal+0x594/0xc2c [ 210.972364][ T6108] kobject_init_and_add+0x128/0x194 [ 210.973270][ T6108] gfs2_sys_fs_add+0x208/0x428 [ 210.974109][ T6108] gfs2_fill_super+0xe20/0x1a9c [ 210.974982][ T6108] get_tree_bdev+0x35c/0x54c [ 210.975761][ T6108] gfs2_get_tree+0x58/0x1b8 [ 210.976531][ T6108] vfs_get_tree+0x90/0x278 [ 210.977284][ T6108] do_new_mount+0x228/0x804 [ 210.978025][ T6108] path_mount+0x57c/0xfe8 [ 210.978747][ T6108] __arm64_sys_mount+0x488/0x5f8 [ 210.979592][ T6108] invoke_syscall+0x98/0x28c [ 210.980406][ T6108] el0_svc_common+0x13c/0x258 [ 210.981257][ T6108] do_el0_svc+0x5c/0x140 [ 210.982006][ T6108] el0_svc+0x78/0x1d0 [ 210.982685][ T6108] el0t_64_sync_handler+0xcc/0xe4 [ 210.983615][ T6108] el0t_64_sync+0x1a0/0x1a4 [ 210.986526][ T6108] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 210.988855][ T6108] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.176166][ T6110] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.177548][ T6110] CPU: 0 PID: 6110 Comm: syz.1.614 Not tainted syzkaller #0 [ 211.178669][ T6110] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 211.180217][ T6110] Call trace: [ 211.180715][ T6110] dump_backtrace+0x0/0x458 [ 211.181460][ T6110] show_stack+0x2c/0x3c [ 211.182163][ T6110] __dump_stack+0x30/0x40 [ 211.182805][ T6110] dump_stack_lvl+0xf4/0x15c [ 211.183526][ T6110] dump_stack+0x1c/0x5c [ 211.184171][ T6110] sysfs_create_dir_ns+0x244/0x264 [ 211.185033][ T6110] kobject_add_internal+0x594/0xc2c [ 211.185864][ T6110] kobject_init_and_add+0x128/0x194 [ 211.186743][ T6110] gfs2_sys_fs_add+0x208/0x428 [ 211.187523][ T6110] gfs2_fill_super+0xe20/0x1a9c [ 211.188317][ T6110] get_tree_bdev+0x35c/0x54c [ 211.189035][ T6110] gfs2_get_tree+0x58/0x1b8 [ 211.189787][ T6110] vfs_get_tree+0x90/0x278 [ 211.190526][ T6110] do_new_mount+0x228/0x804 [ 211.191264][ T6110] path_mount+0x57c/0xfe8 [ 211.191971][ T6110] __arm64_sys_mount+0x488/0x5f8 [ 211.192781][ T6110] invoke_syscall+0x98/0x28c [ 211.193627][ T6110] el0_svc_common+0x13c/0x258 [ 211.194466][ T6110] do_el0_svc+0x5c/0x140 [ 211.195247][ T6110] el0_svc+0x78/0x1d0 [ 211.195973][ T6110] el0t_64_sync_handler+0xcc/0xe4 [ 211.196900][ T6110] el0t_64_sync+0x1a0/0x1a4 [ 211.199721][ T6110] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.201807][ T6110] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.348041][ T6112] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.349388][ T6112] CPU: 0 PID: 6112 Comm: syz.1.615 Not tainted syzkaller #0 [ 211.350513][ T6112] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 211.352068][ T6112] Call trace: [ 211.352595][ T6112] dump_backtrace+0x0/0x458 [ 211.353325][ T6112] show_stack+0x2c/0x3c [ 211.354017][ T6112] __dump_stack+0x30/0x40 [ 211.354711][ T6112] dump_stack_lvl+0xf4/0x15c [ 211.355489][ T6112] dump_stack+0x1c/0x5c [ 211.356170][ T6112] sysfs_create_dir_ns+0x244/0x264 [ 211.357065][ T6112] kobject_add_internal+0x594/0xc2c [ 211.358014][ T6112] kobject_init_and_add+0x128/0x194 [ 211.358926][ T6112] gfs2_sys_fs_add+0x208/0x428 [ 211.359756][ T6112] gfs2_fill_super+0xe20/0x1a9c [ 211.360574][ T6112] get_tree_bdev+0x35c/0x54c [ 211.361391][ T6112] gfs2_get_tree+0x58/0x1b8 [ 211.362172][ T6112] vfs_get_tree+0x90/0x278 [ 211.362924][ T6112] do_new_mount+0x228/0x804 [ 211.363676][ T6112] path_mount+0x57c/0xfe8 [ 211.364422][ T6112] __arm64_sys_mount+0x488/0x5f8 [ 211.365292][ T6112] invoke_syscall+0x98/0x28c [ 211.366070][ T6112] el0_svc_common+0x13c/0x258 [ 211.366814][ T6112] do_el0_svc+0x5c/0x140 [ 211.367671][ T6112] el0_svc+0x78/0x1d0 [ 211.368441][ T6112] el0t_64_sync_handler+0xcc/0xe4 [ 211.369404][ T6112] el0t_64_sync+0x1a0/0x1a4 [ 211.371931][ T6112] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.374210][ T6112] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.547502][ T6114] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 211.548839][ T6114] CPU: 1 PID: 6114 Comm: syz.1.616 Not tainted syzkaller #0 [ 211.550237][ T6114] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 211.551878][ T6114] Call trace: [ 211.552414][ T6114] dump_backtrace+0x0/0x458 [ 211.553203][ T6114] show_stack+0x2c/0x3c [ 211.553887][ T6114] __dump_stack+0x30/0x40 [ 211.554628][ T6114] dump_stack_lvl+0xf4/0x15c [ 211.555411][ T6114] dump_stack+0x1c/0x5c [ 211.556191][ T6114] sysfs_create_dir_ns+0x244/0x264 [ 211.557270][ T6114] kobject_add_internal+0x594/0xc2c [ 211.558337][ T6114] kobject_init_and_add+0x128/0x194 [ 211.559339][ T6114] gfs2_sys_fs_add+0x208/0x428 [ 211.560160][ T6114] gfs2_fill_super+0xe20/0x1a9c [ 211.560985][ T6114] get_tree_bdev+0x35c/0x54c [ 211.561780][ T6114] gfs2_get_tree+0x58/0x1b8 [ 211.562727][ T6114] vfs_get_tree+0x90/0x278 [ 211.563661][ T6114] do_new_mount+0x228/0x804 [ 211.564467][ T6114] path_mount+0x57c/0xfe8 [ 211.565231][ T6114] __arm64_sys_mount+0x488/0x5f8 [ 211.566098][ T6114] invoke_syscall+0x98/0x28c [ 211.566993][ T6114] el0_svc_common+0x13c/0x258 [ 211.567815][ T6114] do_el0_svc+0x5c/0x140 [ 211.568576][ T6114] el0_svc+0x78/0x1d0 [ 211.569280][ T6114] el0t_64_sync_handler+0xcc/0xe4 [ 211.570183][ T6114] el0t_64_sync+0x1a0/0x1a4 [ 211.571670][ T6114] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 211.573882][ T6114] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 211.643762][ T6116] chnl_net:caif_netlink_parms(): no params data found [ 211.662851][ T6116] bridge0: port 1(bridge_slave_0) entered blocking state [ 211.664082][ T6116] bridge0: port 1(bridge_slave_0) entered disabled state [ 211.665609][ T6116] device bridge_slave_0 entered promiscuous mode [ 211.669105][ T6116] bridge0: port 2(bridge_slave_1) entered blocking state [ 211.670238][ T6116] bridge0: port 2(bridge_slave_1) entered disabled state [ 211.671939][ T6116] device bridge_slave_1 entered promiscuous mode [ 211.679729][ T6116] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 211.682253][ T6116] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 211.690638][ T6116] team0: Port device team_slave_0 added [ 211.692447][ T6116] team0: Port device team_slave_1 added [ 211.698530][ T6116] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 211.699674][ T6116] 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. [ 211.704469][ T6116] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 211.706985][ T6116] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 211.708321][ T6116] 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. [ 211.712708][ T6116] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 211.758047][ T6116] device hsr_slave_0 entered promiscuous mode [ 211.776616][ T6116] device hsr_slave_1 entered promiscuous mode [ 211.816352][ T6116] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 211.817704][ T6116] Cannot create hsr debugfs directory [ 211.852899][ T6116] netdevsim netdevsim1 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.270003][ T6116] netdevsim netdevsim1 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.313392][ T6116] netdevsim netdevsim1 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.350187][ T6116] netdevsim netdevsim1 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 212.500204][ T6116] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 212.542547][ T6116] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 212.587279][ T6116] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 212.629861][ T6116] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 212.702883][ T6116] 8021q: adding VLAN 0 to HW filter on device bond0 [ 212.706932][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 212.708510][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 212.711045][ T6116] 8021q: adding VLAN 0 to HW filter on device team0 [ 212.713569][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 212.715298][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 212.719481][ T136] bridge0: port 1(bridge_slave_0) entered blocking state [ 212.720717][ T136] bridge0: port 1(bridge_slave_0) entered forwarding state [ 212.722574][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 212.728389][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 212.729975][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 212.731474][ T136] bridge0: port 2(bridge_slave_1) entered blocking state [ 212.732687][ T136] bridge0: port 2(bridge_slave_1) entered forwarding state [ 212.735318][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 212.740106][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 212.742932][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 212.744926][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 212.747219][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 212.750013][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 212.751717][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 212.754418][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 212.756063][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 212.759543][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 212.761235][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 212.763848][ T6116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 212.800464][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 212.801862][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 212.805699][ T6116] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 212.811991][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 212.813672][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 212.820529][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 212.822084][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 212.823749][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 212.825246][ T1604] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 212.829282][ T6116] device veth0_vlan entered promiscuous mode [ 212.832475][ T6116] device veth1_vlan entered promiscuous mode [ 212.839370][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 212.840911][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 212.842347][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 212.843953][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 212.850564][ T6116] device veth0_macvtap entered promiscuous mode [ 212.853002][ T6116] device veth1_macvtap entered promiscuous mode [ 212.858013][ T6116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 212.859714][ T6116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 212.861339][ T6116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3e) already exists on: batadv_slave_0 [ 212.863101][ T6116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 212.865128][ T6116] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 212.867477][ T6116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 212.869234][ T6116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 212.870877][ T6116] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3f) already exists on: batadv_slave_1 [ 212.872580][ T6116] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 212.874654][ T6116] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 212.875966][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 212.877774][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 212.879260][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 212.880811][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 212.882388][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 212.884082][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 212.887330][ T6116] netdevsim netdevsim1 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 212.888865][ T6116] netdevsim netdevsim1 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 212.890339][ T6116] netdevsim netdevsim1 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 212.891697][ T6116] netdevsim netdevsim1 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 212.913207][ T4659] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 212.915350][ T4659] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 212.919806][ T136] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 212.923143][ T4659] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 212.924461][ T4659] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 212.925778][ T4659] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 213.085662][ T6128] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.087123][ T6128] CPU: 1 PID: 6128 Comm: syz.1.617 Not tainted syzkaller #0 [ 213.088332][ T6128] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 213.089970][ T6128] Call trace: [ 213.090593][ T6128] dump_backtrace+0x0/0x458 [ 213.091332][ T6128] show_stack+0x2c/0x3c [ 213.091991][ T6128] __dump_stack+0x30/0x40 [ 213.092682][ T6128] dump_stack_lvl+0xf4/0x15c [ 213.093431][ T6128] dump_stack+0x1c/0x5c [ 213.094095][ T6128] sysfs_create_dir_ns+0x244/0x264 [ 213.094947][ T6128] kobject_add_internal+0x594/0xc2c [ 213.095808][ T6128] kobject_init_and_add+0x128/0x194 [ 213.096724][ T6128] gfs2_sys_fs_add+0x208/0x428 [ 213.097561][ T6128] gfs2_fill_super+0xe20/0x1a9c [ 213.098354][ T6128] get_tree_bdev+0x35c/0x54c [ 213.099125][ T6128] gfs2_get_tree+0x58/0x1b8 [ 213.099903][ T6128] vfs_get_tree+0x90/0x278 [ 213.100702][ T6128] do_new_mount+0x228/0x804 [ 213.101490][ T6128] path_mount+0x57c/0xfe8 [ 213.102253][ T6128] __arm64_sys_mount+0x488/0x5f8 [ 213.103146][ T6128] invoke_syscall+0x98/0x28c [ 213.104110][ T6128] el0_svc_common+0x13c/0x258 [ 213.105115][ T6128] do_el0_svc+0x5c/0x140 [ 213.105879][ T6128] el0_svc+0x78/0x1d0 [ 213.106589][ T6128] el0t_64_sync_handler+0xcc/0xe4 [ 213.107505][ T6128] el0t_64_sync+0x1a0/0x1a4 [ 213.109946][ T6128] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.112871][ T6128] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.261222][ T6130] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.262523][ T6130] CPU: 1 PID: 6130 Comm: syz.1.618 Not tainted syzkaller #0 [ 213.263655][ T6130] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 213.265227][ T6130] Call trace: [ 213.265711][ T6130] dump_backtrace+0x0/0x458 [ 213.266412][ T6130] show_stack+0x2c/0x3c [ 213.267161][ T6130] __dump_stack+0x30/0x40 [ 213.268027][ T6130] dump_stack_lvl+0xf4/0x15c [ 213.268963][ T6130] dump_stack+0x1c/0x5c [ 213.269776][ T6130] sysfs_create_dir_ns+0x244/0x264 [ 213.270702][ T6130] kobject_add_internal+0x594/0xc2c [ 213.271693][ T6130] kobject_init_and_add+0x128/0x194 [ 213.272679][ T6130] gfs2_sys_fs_add+0x208/0x428 [ 213.273590][ T6130] gfs2_fill_super+0xe20/0x1a9c [ 213.274483][ T6130] get_tree_bdev+0x35c/0x54c [ 213.275358][ T6130] gfs2_get_tree+0x58/0x1b8 [ 213.276173][ T6130] vfs_get_tree+0x90/0x278 [ 213.276985][ T6130] do_new_mount+0x228/0x804 [ 213.277767][ T6130] path_mount+0x57c/0xfe8 [ 213.278533][ T6130] __arm64_sys_mount+0x488/0x5f8 [ 213.279405][ T6130] invoke_syscall+0x98/0x28c [ 213.280195][ T6130] el0_svc_common+0x13c/0x258 [ 213.281002][ T6130] do_el0_svc+0x5c/0x140 [ 213.281733][ T6130] el0_svc+0x78/0x1d0 [ 213.282418][ T6130] el0t_64_sync_handler+0xcc/0xe4 [ 213.283334][ T6130] el0t_64_sync+0x1a0/0x1a4 [ 213.286084][ T6130] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.288572][ T6130] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.467831][ T6132] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.469182][ T6132] CPU: 0 PID: 6132 Comm: syz.1.619 Not tainted syzkaller #0 [ 213.470339][ T6132] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 213.472028][ T6132] Call trace: [ 213.472624][ T6132] dump_backtrace+0x0/0x458 [ 213.473440][ T6132] show_stack+0x2c/0x3c [ 213.474127][ T6132] __dump_stack+0x30/0x40 [ 213.474840][ T6132] dump_stack_lvl+0xf4/0x15c [ 213.475549][ T6132] dump_stack+0x1c/0x5c [ 213.476223][ T6132] sysfs_create_dir_ns+0x244/0x264 [ 213.477001][ T6132] kobject_add_internal+0x594/0xc2c [ 213.477976][ T6132] kobject_init_and_add+0x128/0x194 [ 213.479026][ T6132] gfs2_sys_fs_add+0x208/0x428 [ 213.479931][ T6132] gfs2_fill_super+0xe20/0x1a9c [ 213.480809][ T6132] get_tree_bdev+0x35c/0x54c [ 213.481690][ T6132] gfs2_get_tree+0x58/0x1b8 [ 213.482543][ T6132] vfs_get_tree+0x90/0x278 [ 213.483378][ T6132] do_new_mount+0x228/0x804 [ 213.484200][ T6132] path_mount+0x57c/0xfe8 [ 213.485016][ T6132] __arm64_sys_mount+0x488/0x5f8 [ 213.485909][ T6132] invoke_syscall+0x98/0x28c [ 213.486758][ T6132] el0_svc_common+0x13c/0x258 [ 213.487529][ T6132] do_el0_svc+0x5c/0x140 [ 213.488207][ T6132] el0_svc+0x78/0x1d0 [ 213.488990][ T6132] el0t_64_sync_handler+0xcc/0xe4 [ 213.489942][ T6132] el0t_64_sync+0x1a0/0x1a4 [ 213.492244][ T6132] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.494516][ T6132] gfs2: fsid=syz:syz: error -17 adding sysfs files 1970/01/01 00:03:33 executed programs: 606 [ 213.621811][ T358] device hsr_slave_0 left promiscuous mode [ 213.637254][ T6134] set_capacity_and_notify: 9 callbacks suppressed [ 213.637262][ T6134] loop1: detected capacity change from 0 to 32768 [ 213.656699][ T358] device hsr_slave_1 left promiscuous mode [ 213.686531][ T4882] Bluetooth: hci2: command 0x0409 tx timeout [ 213.711286][ T6134] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.712574][ T6134] CPU: 0 PID: 6134 Comm: syz.1.620 Not tainted syzkaller #0 [ 213.713727][ T6134] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 213.715467][ T6134] Call trace: [ 213.716036][ T6134] dump_backtrace+0x0/0x458 [ 213.716836][ T6134] show_stack+0x2c/0x3c [ 213.717576][ T6134] __dump_stack+0x30/0x40 [ 213.718350][ T6134] dump_stack_lvl+0xf4/0x15c [ 213.719172][ T6134] dump_stack+0x1c/0x5c [ 213.719832][ T6134] sysfs_create_dir_ns+0x244/0x264 [ 213.720674][ T6134] kobject_add_internal+0x594/0xc2c [ 213.721507][ T6134] kobject_init_and_add+0x128/0x194 [ 213.722418][ T6134] gfs2_sys_fs_add+0x208/0x428 [ 213.723281][ T6134] gfs2_fill_super+0xe20/0x1a9c [ 213.724132][ T6134] get_tree_bdev+0x35c/0x54c [ 213.724991][ T6134] gfs2_get_tree+0x58/0x1b8 [ 213.725786][ T6134] vfs_get_tree+0x90/0x278 [ 213.726559][ T6134] do_new_mount+0x228/0x804 [ 213.727311][ T6134] path_mount+0x57c/0xfe8 [ 213.728028][ T6134] __arm64_sys_mount+0x488/0x5f8 [ 213.728867][ T6134] invoke_syscall+0x98/0x28c [ 213.729631][ T6134] el0_svc_common+0x13c/0x258 [ 213.730413][ T6134] do_el0_svc+0x5c/0x140 [ 213.731160][ T6134] el0_svc+0x78/0x1d0 [ 213.731844][ T6134] el0t_64_sync_handler+0xcc/0xe4 [ 213.732657][ T6134] el0t_64_sync+0x1a0/0x1a4 [ 213.734879][ T6134] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.737077][ T6134] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.746515][ T358] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 213.747859][ T358] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 213.749792][ T358] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 213.751107][ T358] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 213.752553][ T358] device bridge_slave_1 left promiscuous mode [ 213.753643][ T358] bridge0: port 2(bridge_slave_1) entered disabled state [ 213.787037][ T358] device bridge_slave_0 left promiscuous mode [ 213.788183][ T358] bridge0: port 1(bridge_slave_0) entered disabled state [ 213.868371][ T6136] loop1: detected capacity change from 0 to 32768 [ 213.918627][ T6136] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 213.919876][ T6136] CPU: 0 PID: 6136 Comm: syz.1.621 Not tainted syzkaller #0 [ 213.921141][ T6136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 213.922789][ T6136] Call trace: [ 213.923349][ T6136] dump_backtrace+0x0/0x458 [ 213.924174][ T6136] show_stack+0x2c/0x3c [ 213.924832][ T6136] __dump_stack+0x30/0x40 [ 213.925527][ T6136] dump_stack_lvl+0xf4/0x15c [ 213.926244][ T6136] dump_stack+0x1c/0x5c [ 213.926940][ T6136] sysfs_create_dir_ns+0x244/0x264 [ 213.927757][ T6136] kobject_add_internal+0x594/0xc2c [ 213.928677][ T6136] kobject_init_and_add+0x128/0x194 [ 213.929524][ T6136] gfs2_sys_fs_add+0x208/0x428 [ 213.930292][ T6136] gfs2_fill_super+0xe20/0x1a9c [ 213.931072][ T6136] get_tree_bdev+0x35c/0x54c [ 213.931815][ T6136] gfs2_get_tree+0x58/0x1b8 [ 213.932571][ T6136] vfs_get_tree+0x90/0x278 [ 213.933298][ T6136] do_new_mount+0x228/0x804 [ 213.933998][ T6136] path_mount+0x57c/0xfe8 [ 213.934708][ T6136] __arm64_sys_mount+0x488/0x5f8 [ 213.935509][ T6136] invoke_syscall+0x98/0x28c [ 213.936299][ T6136] el0_svc_common+0x13c/0x258 [ 213.937108][ T6136] do_el0_svc+0x5c/0x140 [ 213.937835][ T6136] el0_svc+0x78/0x1d0 [ 213.938512][ T6136] el0t_64_sync_handler+0xcc/0xe4 [ 213.939344][ T6136] el0t_64_sync+0x1a0/0x1a4 [ 213.942491][ T6136] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 213.944682][ T6136] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 213.946429][ T358] device veth1_macvtap left promiscuous mode [ 213.947537][ T358] device veth0_macvtap left promiscuous mode [ 213.948577][ T358] device veth1_vlan left promiscuous mode [ 213.949542][ T358] device veth0_vlan left promiscuous mode [ 214.077732][ T6138] loop1: detected capacity change from 0 to 32768 [ 214.093173][ T358] team0 (unregistering): Port device team_slave_1 removed [ 214.099191][ T358] team0 (unregistering): Port device team_slave_0 removed [ 214.103148][ T358] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 214.140575][ T6138] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.141932][ T6138] CPU: 1 PID: 6138 Comm: syz.1.622 Not tainted syzkaller #0 [ 214.143334][ T6138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 214.145247][ T6138] Call trace: [ 214.145836][ T6138] dump_backtrace+0x0/0x458 [ 214.146686][ T6138] show_stack+0x2c/0x3c [ 214.147527][ T6138] __dump_stack+0x30/0x40 [ 214.148314][ T6138] dump_stack_lvl+0xf4/0x15c [ 214.149162][ T6138] dump_stack+0x1c/0x5c [ 214.149929][ T6138] sysfs_create_dir_ns+0x244/0x264 [ 214.150845][ T6138] kobject_add_internal+0x594/0xc2c [ 214.151777][ T6138] kobject_init_and_add+0x128/0x194 [ 214.152693][ T6138] gfs2_sys_fs_add+0x208/0x428 [ 214.153545][ T6138] gfs2_fill_super+0xe20/0x1a9c [ 214.154382][ T6138] get_tree_bdev+0x35c/0x54c [ 214.155172][ T6138] gfs2_get_tree+0x58/0x1b8 [ 214.155971][ T6138] vfs_get_tree+0x90/0x278 [ 214.156771][ T6138] do_new_mount+0x228/0x804 [ 214.157577][ T6138] path_mount+0x57c/0xfe8 [ 214.158352][ T6138] __arm64_sys_mount+0x488/0x5f8 [ 214.159227][ T6138] invoke_syscall+0x98/0x28c [ 214.160051][ T6138] el0_svc_common+0x13c/0x258 [ 214.160865][ T6138] do_el0_svc+0x5c/0x140 [ 214.161601][ T6138] el0_svc+0x78/0x1d0 [ 214.162285][ T6138] el0t_64_sync_handler+0xcc/0xe4 [ 214.163175][ T6138] el0t_64_sync+0x1a0/0x1a4 [ 214.167788][ T358] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 214.169341][ T6138] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.171884][ T6138] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.261822][ T358] bond0 (unregistering): Released all slaves [ 214.321478][ T6140] loop1: detected capacity change from 0 to 32768 [ 214.336430][ T6140] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.337730][ T6140] CPU: 0 PID: 6140 Comm: syz.1.623 Not tainted syzkaller #0 [ 214.338983][ T6140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 214.340557][ T6140] Call trace: [ 214.341079][ T6140] dump_backtrace+0x0/0x458 [ 214.341781][ T6140] show_stack+0x2c/0x3c [ 214.342467][ T6140] __dump_stack+0x30/0x40 [ 214.343150][ T6140] dump_stack_lvl+0xf4/0x15c [ 214.343877][ T6140] dump_stack+0x1c/0x5c [ 214.344553][ T6140] sysfs_create_dir_ns+0x244/0x264 [ 214.345398][ T6140] kobject_add_internal+0x594/0xc2c [ 214.346235][ T6140] kobject_init_and_add+0x128/0x194 [ 214.347138][ T6140] gfs2_sys_fs_add+0x208/0x428 [ 214.347982][ T6140] gfs2_fill_super+0xe20/0x1a9c [ 214.348842][ T6140] get_tree_bdev+0x35c/0x54c [ 214.349651][ T6140] gfs2_get_tree+0x58/0x1b8 [ 214.350427][ T6140] vfs_get_tree+0x90/0x278 [ 214.351143][ T6140] do_new_mount+0x228/0x804 [ 214.351891][ T6140] path_mount+0x57c/0xfe8 [ 214.352640][ T6140] __arm64_sys_mount+0x488/0x5f8 [ 214.353495][ T6140] invoke_syscall+0x98/0x28c [ 214.354290][ T6140] el0_svc_common+0x13c/0x258 [ 214.355096][ T6140] do_el0_svc+0x5c/0x140 [ 214.355827][ T6140] el0_svc+0x78/0x1d0 [ 214.356477][ T6140] el0t_64_sync_handler+0xcc/0xe4 [ 214.357284][ T6140] el0t_64_sync+0x1a0/0x1a4 [ 214.358271][ T6140] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.360516][ T6140] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.530873][ T6142] loop1: detected capacity change from 0 to 32768 [ 214.569023][ T6142] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.570306][ T6142] CPU: 0 PID: 6142 Comm: syz.1.624 Not tainted syzkaller #0 [ 214.571432][ T6142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 214.573000][ T6142] Call trace: [ 214.573602][ T6142] dump_backtrace+0x0/0x458 [ 214.574452][ T6142] show_stack+0x2c/0x3c [ 214.575127][ T6142] __dump_stack+0x30/0x40 [ 214.575925][ T6142] dump_stack_lvl+0xf4/0x15c [ 214.576784][ T6142] dump_stack+0x1c/0x5c [ 214.577614][ T6142] sysfs_create_dir_ns+0x244/0x264 [ 214.578660][ T6142] kobject_add_internal+0x594/0xc2c [ 214.579525][ T6142] kobject_init_and_add+0x128/0x194 [ 214.580395][ T6142] gfs2_sys_fs_add+0x208/0x428 [ 214.581344][ T6142] gfs2_fill_super+0xe20/0x1a9c [ 214.582287][ T6142] get_tree_bdev+0x35c/0x54c [ 214.583252][ T6142] gfs2_get_tree+0x58/0x1b8 [ 214.584094][ T6142] vfs_get_tree+0x90/0x278 [ 214.584920][ T6142] do_new_mount+0x228/0x804 [ 214.585764][ T6142] path_mount+0x57c/0xfe8 [ 214.586521][ T6142] __arm64_sys_mount+0x488/0x5f8 [ 214.587394][ T6142] invoke_syscall+0x98/0x28c [ 214.588183][ T6142] el0_svc_common+0x13c/0x258 [ 214.589114][ T6142] do_el0_svc+0x5c/0x140 [ 214.589953][ T6142] el0_svc+0x78/0x1d0 [ 214.590668][ T6142] el0t_64_sync_handler+0xcc/0xe4 [ 214.591605][ T6142] el0t_64_sync+0x1a0/0x1a4 [ 214.593754][ T6142] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.595837][ T6142] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.738116][ T6144] loop1: detected capacity change from 0 to 32768 [ 214.782716][ T6144] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 214.783955][ T6144] CPU: 1 PID: 6144 Comm: syz.1.625 Not tainted syzkaller #0 [ 214.785127][ T6144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 214.786969][ T6144] Call trace: [ 214.787591][ T6144] dump_backtrace+0x0/0x458 [ 214.788361][ T6144] show_stack+0x2c/0x3c [ 214.789054][ T6144] __dump_stack+0x30/0x40 [ 214.789798][ T6144] dump_stack_lvl+0xf4/0x15c [ 214.790603][ T6144] dump_stack+0x1c/0x5c [ 214.791465][ T6144] sysfs_create_dir_ns+0x244/0x264 [ 214.792550][ T6144] kobject_add_internal+0x594/0xc2c [ 214.793651][ T6144] kobject_init_and_add+0x128/0x194 [ 214.794679][ T6144] gfs2_sys_fs_add+0x208/0x428 [ 214.795547][ T6144] gfs2_fill_super+0xe20/0x1a9c [ 214.796410][ T6144] get_tree_bdev+0x35c/0x54c [ 214.797234][ T6144] gfs2_get_tree+0x58/0x1b8 [ 214.798067][ T6144] vfs_get_tree+0x90/0x278 [ 214.798885][ T6144] do_new_mount+0x228/0x804 [ 214.799831][ T6144] path_mount+0x57c/0xfe8 [ 214.800738][ T6144] __arm64_sys_mount+0x488/0x5f8 [ 214.801683][ T6144] invoke_syscall+0x98/0x28c [ 214.802558][ T6144] el0_svc_common+0x13c/0x258 [ 214.803398][ T6144] do_el0_svc+0x5c/0x140 [ 214.804112][ T6144] el0_svc+0x78/0x1d0 [ 214.804794][ T6144] el0t_64_sync_handler+0xcc/0xe4 [ 214.805672][ T6144] el0t_64_sync+0x1a0/0x1a4 [ 214.807204][ T6144] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 214.809221][ T6144] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 214.952132][ T6146] loop1: detected capacity change from 0 to 32768 [ 215.001482][ T6146] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.002769][ T6146] CPU: 0 PID: 6146 Comm: syz.1.626 Not tainted syzkaller #0 [ 215.004040][ T6146] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 215.005639][ T6146] Call trace: [ 215.006136][ T6146] dump_backtrace+0x0/0x458 [ 215.006916][ T6146] show_stack+0x2c/0x3c [ 215.007631][ T6146] __dump_stack+0x30/0x40 [ 215.008357][ T6146] dump_stack_lvl+0xf4/0x15c [ 215.009256][ T6146] dump_stack+0x1c/0x5c [ 215.010012][ T6146] sysfs_create_dir_ns+0x244/0x264 [ 215.010945][ T6146] kobject_add_internal+0x594/0xc2c [ 215.011872][ T6146] kobject_init_and_add+0x128/0x194 [ 215.012789][ T6146] gfs2_sys_fs_add+0x208/0x428 [ 215.013641][ T6146] gfs2_fill_super+0xe20/0x1a9c [ 215.014515][ T6146] get_tree_bdev+0x35c/0x54c [ 215.015340][ T6146] gfs2_get_tree+0x58/0x1b8 [ 215.016168][ T6146] vfs_get_tree+0x90/0x278 [ 215.016957][ T6146] do_new_mount+0x228/0x804 [ 215.017757][ T6146] path_mount+0x57c/0xfe8 [ 215.018536][ T6146] __arm64_sys_mount+0x488/0x5f8 [ 215.019426][ T6146] invoke_syscall+0x98/0x28c [ 215.020287][ T6146] el0_svc_common+0x13c/0x258 [ 215.021131][ T6146] do_el0_svc+0x5c/0x140 [ 215.021898][ T6146] el0_svc+0x78/0x1d0 [ 215.022571][ T6146] el0t_64_sync_handler+0xcc/0xe4 [ 215.023386][ T6146] el0t_64_sync+0x1a0/0x1a4 [ 215.024270][ T6146] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.026668][ T6146] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.163854][ T6148] loop1: detected capacity change from 0 to 32768 [ 215.197426][ T6148] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.198739][ T6148] CPU: 1 PID: 6148 Comm: syz.1.627 Not tainted syzkaller #0 [ 215.199959][ T6148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 215.201590][ T6148] Call trace: [ 215.202143][ T6148] dump_backtrace+0x0/0x458 [ 215.202957][ T6148] show_stack+0x2c/0x3c [ 215.203689][ T6148] __dump_stack+0x30/0x40 [ 215.204513][ T6148] dump_stack_lvl+0xf4/0x15c [ 215.205270][ T6148] dump_stack+0x1c/0x5c [ 215.205912][ T6148] sysfs_create_dir_ns+0x244/0x264 [ 215.206826][ T6148] kobject_add_internal+0x594/0xc2c [ 215.207724][ T6148] kobject_init_and_add+0x128/0x194 [ 215.208660][ T6148] gfs2_sys_fs_add+0x208/0x428 [ 215.209525][ T6148] gfs2_fill_super+0xe20/0x1a9c [ 215.210403][ T6148] get_tree_bdev+0x35c/0x54c [ 215.211229][ T6148] gfs2_get_tree+0x58/0x1b8 [ 215.212074][ T6148] vfs_get_tree+0x90/0x278 [ 215.212897][ T6148] do_new_mount+0x228/0x804 [ 215.213730][ T6148] path_mount+0x57c/0xfe8 [ 215.214486][ T6148] __arm64_sys_mount+0x488/0x5f8 [ 215.215368][ T6148] invoke_syscall+0x98/0x28c [ 215.216228][ T6148] el0_svc_common+0x13c/0x258 [ 215.217081][ T6148] do_el0_svc+0x5c/0x140 [ 215.217857][ T6148] el0_svc+0x78/0x1d0 [ 215.218582][ T6148] el0t_64_sync_handler+0xcc/0xe4 [ 215.219446][ T6148] el0t_64_sync+0x1a0/0x1a4 [ 215.220971][ T6148] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.223132][ T6148] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.369511][ T6150] loop1: detected capacity change from 0 to 32768 [ 215.428818][ T6150] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.430083][ T6150] CPU: 1 PID: 6150 Comm: syz.1.628 Not tainted syzkaller #0 [ 215.431277][ T6150] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 215.432925][ T6150] Call trace: [ 215.433437][ T6150] dump_backtrace+0x0/0x458 [ 215.434195][ T6150] show_stack+0x2c/0x3c [ 215.434879][ T6150] __dump_stack+0x30/0x40 [ 215.435595][ T6150] dump_stack_lvl+0xf4/0x15c [ 215.436386][ T6150] dump_stack+0x1c/0x5c [ 215.437125][ T6150] sysfs_create_dir_ns+0x244/0x264 [ 215.438041][ T6150] kobject_add_internal+0x594/0xc2c [ 215.438954][ T6150] kobject_init_and_add+0x128/0x194 [ 215.439895][ T6150] gfs2_sys_fs_add+0x208/0x428 [ 215.440734][ T6150] gfs2_fill_super+0xe20/0x1a9c [ 215.441643][ T6150] get_tree_bdev+0x35c/0x54c [ 215.442443][ T6150] gfs2_get_tree+0x58/0x1b8 [ 215.443238][ T6150] vfs_get_tree+0x90/0x278 [ 215.444031][ T6150] do_new_mount+0x228/0x804 [ 215.444843][ T6150] path_mount+0x57c/0xfe8 [ 215.445617][ T6150] __arm64_sys_mount+0x488/0x5f8 [ 215.446471][ T6150] invoke_syscall+0x98/0x28c [ 215.447282][ T6150] el0_svc_common+0x13c/0x258 [ 215.448090][ T6150] do_el0_svc+0x5c/0x140 [ 215.448843][ T6150] el0_svc+0x78/0x1d0 [ 215.449541][ T6150] el0t_64_sync_handler+0xcc/0xe4 [ 215.450363][ T6150] el0t_64_sync+0x1a0/0x1a4 [ 215.472185][ T6150] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.474991][ T6150] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.618933][ T6152] loop1: detected capacity change from 0 to 32768 [ 215.626551][ T6152] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.627810][ T6152] CPU: 0 PID: 6152 Comm: syz.1.629 Not tainted syzkaller #0 [ 215.628903][ T6152] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 215.630479][ T6152] Call trace: [ 215.630911][ T6152] dump_backtrace+0x0/0x458 [ 215.631614][ T6152] show_stack+0x2c/0x3c [ 215.632234][ T6152] __dump_stack+0x30/0x40 [ 215.632941][ T6152] dump_stack_lvl+0xf4/0x15c [ 215.633674][ T6152] dump_stack+0x1c/0x5c [ 215.634351][ T6152] sysfs_create_dir_ns+0x244/0x264 [ 215.635215][ T6152] kobject_add_internal+0x594/0xc2c [ 215.636123][ T6152] kobject_init_and_add+0x128/0x194 [ 215.637031][ T6152] gfs2_sys_fs_add+0x208/0x428 [ 215.637864][ T6152] gfs2_fill_super+0xe20/0x1a9c [ 215.638692][ T6152] get_tree_bdev+0x35c/0x54c [ 215.639417][ T6152] gfs2_get_tree+0x58/0x1b8 [ 215.640161][ T6152] vfs_get_tree+0x90/0x278 [ 215.640866][ T6152] do_new_mount+0x228/0x804 [ 215.641637][ T6152] path_mount+0x57c/0xfe8 [ 215.642389][ T6152] __arm64_sys_mount+0x488/0x5f8 [ 215.643212][ T6152] invoke_syscall+0x98/0x28c [ 215.643986][ T6152] el0_svc_common+0x13c/0x258 [ 215.644813][ T6152] do_el0_svc+0x5c/0x140 [ 215.645514][ T6152] el0_svc+0x78/0x1d0 [ 215.646179][ T6152] el0t_64_sync_handler+0xcc/0xe4 [ 215.647034][ T6152] el0t_64_sync+0x1a0/0x1a4 [ 215.650071][ T6152] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.652519][ T6152] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 215.766345][ T4884] Bluetooth: hci2: command 0x041b tx timeout [ 215.793481][ T6154] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 215.794729][ T6154] CPU: 1 PID: 6154 Comm: syz.1.630 Not tainted syzkaller #0 [ 215.795989][ T6154] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 215.797858][ T6154] Call trace: [ 215.798470][ T6154] dump_backtrace+0x0/0x458 [ 215.799297][ T6154] show_stack+0x2c/0x3c [ 215.800160][ T6154] __dump_stack+0x30/0x40 [ 215.801042][ T6154] dump_stack_lvl+0xf4/0x15c [ 215.801910][ T6154] dump_stack+0x1c/0x5c [ 215.802699][ T6154] sysfs_create_dir_ns+0x244/0x264 [ 215.803611][ T6154] kobject_add_internal+0x594/0xc2c [ 215.804565][ T6154] kobject_init_and_add+0x128/0x194 [ 215.805510][ T6154] gfs2_sys_fs_add+0x208/0x428 [ 215.806349][ T6154] gfs2_fill_super+0xe20/0x1a9c [ 215.807167][ T6154] get_tree_bdev+0x35c/0x54c [ 215.807946][ T6154] gfs2_get_tree+0x58/0x1b8 [ 215.808677][ T6154] vfs_get_tree+0x90/0x278 [ 215.809402][ T6154] do_new_mount+0x228/0x804 [ 215.810145][ T6154] path_mount+0x57c/0xfe8 [ 215.810869][ T6154] __arm64_sys_mount+0x488/0x5f8 [ 215.811692][ T6154] invoke_syscall+0x98/0x28c [ 215.812517][ T6154] el0_svc_common+0x13c/0x258 [ 215.813378][ T6154] do_el0_svc+0x5c/0x140 [ 215.814161][ T6154] el0_svc+0x78/0x1d0 [ 215.814892][ T6154] el0t_64_sync_handler+0xcc/0xe4 [ 215.815884][ T6154] el0t_64_sync+0x1a0/0x1a4 [ 215.833862][ T6154] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 215.846368][ T6154] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.027679][ T6156] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.028944][ T6156] CPU: 0 PID: 6156 Comm: syz.1.631 Not tainted syzkaller #0 [ 216.030135][ T6156] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 216.031749][ T6156] Call trace: [ 216.032269][ T6156] dump_backtrace+0x0/0x458 [ 216.032974][ T6156] show_stack+0x2c/0x3c [ 216.033630][ T6156] __dump_stack+0x30/0x40 [ 216.034335][ T6156] dump_stack_lvl+0xf4/0x15c [ 216.035071][ T6156] dump_stack+0x1c/0x5c [ 216.035727][ T6156] sysfs_create_dir_ns+0x244/0x264 [ 216.036548][ T6156] kobject_add_internal+0x594/0xc2c [ 216.037379][ T6156] kobject_init_and_add+0x128/0x194 [ 216.038204][ T6156] gfs2_sys_fs_add+0x208/0x428 [ 216.039011][ T6156] gfs2_fill_super+0xe20/0x1a9c [ 216.039821][ T6156] get_tree_bdev+0x35c/0x54c [ 216.040594][ T6156] gfs2_get_tree+0x58/0x1b8 [ 216.041335][ T6156] vfs_get_tree+0x90/0x278 [ 216.042091][ T6156] do_new_mount+0x228/0x804 [ 216.042848][ T6156] path_mount+0x57c/0xfe8 [ 216.043542][ T6156] __arm64_sys_mount+0x488/0x5f8 [ 216.044384][ T6156] invoke_syscall+0x98/0x28c [ 216.045110][ T6156] el0_svc_common+0x13c/0x258 [ 216.045866][ T6156] do_el0_svc+0x5c/0x140 [ 216.046532][ T6156] el0_svc+0x78/0x1d0 [ 216.047218][ T6156] el0t_64_sync_handler+0xcc/0xe4 [ 216.048071][ T6156] el0t_64_sync+0x1a0/0x1a4 [ 216.050529][ T6156] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.053087][ T6156] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.272069][ T6158] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.273613][ T6158] CPU: 0 PID: 6158 Comm: syz.1.632 Not tainted syzkaller #0 [ 216.274747][ T6158] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 216.276240][ T6158] Call trace: [ 216.276778][ T6158] dump_backtrace+0x0/0x458 [ 216.277540][ T6158] show_stack+0x2c/0x3c [ 216.278244][ T6158] __dump_stack+0x30/0x40 [ 216.278938][ T6158] dump_stack_lvl+0xf4/0x15c [ 216.279695][ T6158] dump_stack+0x1c/0x5c [ 216.280376][ T6158] sysfs_create_dir_ns+0x244/0x264 [ 216.281217][ T6158] kobject_add_internal+0x594/0xc2c [ 216.282086][ T6158] kobject_init_and_add+0x128/0x194 [ 216.282949][ T6158] gfs2_sys_fs_add+0x208/0x428 [ 216.283764][ T6158] gfs2_fill_super+0xe20/0x1a9c [ 216.284621][ T6158] get_tree_bdev+0x35c/0x54c [ 216.285369][ T6158] gfs2_get_tree+0x58/0x1b8 [ 216.286141][ T6158] vfs_get_tree+0x90/0x278 [ 216.286848][ T6158] do_new_mount+0x228/0x804 [ 216.287619][ T6158] path_mount+0x57c/0xfe8 [ 216.288357][ T6158] __arm64_sys_mount+0x488/0x5f8 [ 216.289203][ T6158] invoke_syscall+0x98/0x28c [ 216.289938][ T6158] el0_svc_common+0x13c/0x258 [ 216.290674][ T6158] do_el0_svc+0x5c/0x140 [ 216.291366][ T6158] el0_svc+0x78/0x1d0 [ 216.291991][ T6158] el0t_64_sync_handler+0xcc/0xe4 [ 216.292873][ T6158] el0t_64_sync+0x1a0/0x1a4 [ 216.294966][ T6158] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.297406][ T6158] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.471165][ T6160] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.472353][ T6160] CPU: 0 PID: 6160 Comm: syz.1.633 Not tainted syzkaller #0 [ 216.473535][ T6160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 216.475257][ T6160] Call trace: [ 216.475774][ T6160] dump_backtrace+0x0/0x458 [ 216.476583][ T6160] show_stack+0x2c/0x3c [ 216.477280][ T6160] __dump_stack+0x30/0x40 [ 216.478033][ T6160] dump_stack_lvl+0xf4/0x15c [ 216.478753][ T6160] dump_stack+0x1c/0x5c [ 216.479422][ T6160] sysfs_create_dir_ns+0x244/0x264 [ 216.480279][ T6160] kobject_add_internal+0x594/0xc2c [ 216.481159][ T6160] kobject_init_and_add+0x128/0x194 [ 216.481993][ T6160] gfs2_sys_fs_add+0x208/0x428 [ 216.482753][ T6160] gfs2_fill_super+0xe20/0x1a9c [ 216.483552][ T6160] get_tree_bdev+0x35c/0x54c [ 216.484312][ T6160] gfs2_get_tree+0x58/0x1b8 [ 216.485074][ T6160] vfs_get_tree+0x90/0x278 [ 216.485825][ T6160] do_new_mount+0x228/0x804 [ 216.486597][ T6160] path_mount+0x57c/0xfe8 [ 216.487309][ T6160] __arm64_sys_mount+0x488/0x5f8 [ 216.488119][ T6160] invoke_syscall+0x98/0x28c [ 216.488893][ T6160] el0_svc_common+0x13c/0x258 [ 216.489666][ T6160] do_el0_svc+0x5c/0x140 [ 216.490392][ T6160] el0_svc+0x78/0x1d0 [ 216.491035][ T6160] el0t_64_sync_handler+0xcc/0xe4 [ 216.491881][ T6160] el0t_64_sync+0x1a0/0x1a4 [ 216.494155][ T6160] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.496544][ T6160] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.719332][ T6162] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.720665][ T6162] CPU: 1 PID: 6162 Comm: syz.1.634 Not tainted syzkaller #0 [ 216.721904][ T6162] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 216.723560][ T6162] Call trace: [ 216.724115][ T6162] dump_backtrace+0x0/0x458 [ 216.724868][ T6162] show_stack+0x2c/0x3c [ 216.725532][ T6162] __dump_stack+0x30/0x40 [ 216.726256][ T6162] dump_stack_lvl+0xf4/0x15c [ 216.727149][ T6162] dump_stack+0x1c/0x5c [ 216.727920][ T6162] sysfs_create_dir_ns+0x244/0x264 [ 216.728830][ T6162] kobject_add_internal+0x594/0xc2c [ 216.729782][ T6162] kobject_init_and_add+0x128/0x194 [ 216.730678][ T6162] gfs2_sys_fs_add+0x208/0x428 [ 216.731540][ T6162] gfs2_fill_super+0xe20/0x1a9c [ 216.732429][ T6162] get_tree_bdev+0x35c/0x54c [ 216.733266][ T6162] gfs2_get_tree+0x58/0x1b8 [ 216.734066][ T6162] vfs_get_tree+0x90/0x278 [ 216.734840][ T6162] do_new_mount+0x228/0x804 [ 216.735655][ T6162] path_mount+0x57c/0xfe8 [ 216.736424][ T6162] __arm64_sys_mount+0x488/0x5f8 [ 216.737298][ T6162] invoke_syscall+0x98/0x28c [ 216.738121][ T6162] el0_svc_common+0x13c/0x258 [ 216.738957][ T6162] do_el0_svc+0x5c/0x140 [ 216.739647][ T6162] el0_svc+0x78/0x1d0 [ 216.740328][ T6162] el0t_64_sync_handler+0xcc/0xe4 [ 216.741185][ T6162] el0t_64_sync+0x1a0/0x1a4 [ 216.743085][ T6162] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.745348][ T6162] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 216.947343][ T6164] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 216.948676][ T6164] CPU: 1 PID: 6164 Comm: syz.1.635 Not tainted syzkaller #0 [ 216.949897][ T6164] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 216.951552][ T6164] Call trace: [ 216.952084][ T6164] dump_backtrace+0x0/0x458 [ 216.952872][ T6164] show_stack+0x2c/0x3c [ 216.953576][ T6164] __dump_stack+0x30/0x40 [ 216.954315][ T6164] dump_stack_lvl+0xf4/0x15c [ 216.955110][ T6164] dump_stack+0x1c/0x5c [ 216.955764][ T6164] sysfs_create_dir_ns+0x244/0x264 [ 216.956616][ T6164] kobject_add_internal+0x594/0xc2c [ 216.957529][ T6164] kobject_init_and_add+0x128/0x194 [ 216.958453][ T6164] gfs2_sys_fs_add+0x208/0x428 [ 216.959304][ T6164] gfs2_fill_super+0xe20/0x1a9c [ 216.960180][ T6164] get_tree_bdev+0x35c/0x54c [ 216.961001][ T6164] gfs2_get_tree+0x58/0x1b8 [ 216.961809][ T6164] vfs_get_tree+0x90/0x278 [ 216.962595][ T6164] do_new_mount+0x228/0x804 [ 216.963399][ T6164] path_mount+0x57c/0xfe8 [ 216.964168][ T6164] __arm64_sys_mount+0x488/0x5f8 [ 216.965105][ T6164] invoke_syscall+0x98/0x28c [ 216.965944][ T6164] el0_svc_common+0x13c/0x258 [ 216.966777][ T6164] do_el0_svc+0x5c/0x140 [ 216.967550][ T6164] el0_svc+0x78/0x1d0 [ 216.968208][ T6164] el0t_64_sync_handler+0xcc/0xe4 [ 216.969156][ T6164] el0t_64_sync+0x1a0/0x1a4 [ 216.970461][ T6164] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 216.972646][ T6164] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.188347][ T6166] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.189731][ T6166] CPU: 0 PID: 6166 Comm: syz.1.636 Not tainted syzkaller #0 [ 217.191106][ T6166] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 217.192864][ T6166] Call trace: [ 217.193434][ T6166] dump_backtrace+0x0/0x458 [ 217.194218][ T6166] show_stack+0x2c/0x3c [ 217.194940][ T6166] __dump_stack+0x30/0x40 [ 217.195649][ T6166] dump_stack_lvl+0xf4/0x15c [ 217.196369][ T6166] dump_stack+0x1c/0x5c [ 217.197089][ T6166] sysfs_create_dir_ns+0x244/0x264 [ 217.197962][ T6166] kobject_add_internal+0x594/0xc2c [ 217.198883][ T6166] kobject_init_and_add+0x128/0x194 [ 217.199787][ T6166] gfs2_sys_fs_add+0x208/0x428 [ 217.200632][ T6166] gfs2_fill_super+0xe20/0x1a9c [ 217.201468][ T6166] get_tree_bdev+0x35c/0x54c [ 217.202283][ T6166] gfs2_get_tree+0x58/0x1b8 [ 217.203057][ T6166] vfs_get_tree+0x90/0x278 [ 217.203819][ T6166] do_new_mount+0x228/0x804 [ 217.204581][ T6166] path_mount+0x57c/0xfe8 [ 217.205309][ T6166] __arm64_sys_mount+0x488/0x5f8 [ 217.206167][ T6166] invoke_syscall+0x98/0x28c [ 217.206986][ T6166] el0_svc_common+0x13c/0x258 [ 217.207807][ T6166] do_el0_svc+0x5c/0x140 [ 217.208559][ T6166] el0_svc+0x78/0x1d0 [ 217.209212][ T6166] el0t_64_sync_handler+0xcc/0xe4 [ 217.210045][ T6166] el0t_64_sync+0x1a0/0x1a4 [ 217.212146][ T6166] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.214243][ T6166] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.502036][ T6168] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.503377][ T6168] CPU: 0 PID: 6168 Comm: syz.1.637 Not tainted syzkaller #0 [ 217.504646][ T6168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 217.506409][ T6168] Call trace: [ 217.507037][ T6168] dump_backtrace+0x0/0x458 [ 217.507962][ T6168] show_stack+0x2c/0x3c [ 217.508800][ T6168] __dump_stack+0x30/0x40 [ 217.509675][ T6168] dump_stack_lvl+0xf4/0x15c [ 217.510599][ T6168] dump_stack+0x1c/0x5c [ 217.511337][ T6168] sysfs_create_dir_ns+0x244/0x264 [ 217.512224][ T6168] kobject_add_internal+0x594/0xc2c [ 217.513249][ T6168] kobject_init_and_add+0x128/0x194 [ 217.514289][ T6168] gfs2_sys_fs_add+0x208/0x428 [ 217.515230][ T6168] gfs2_fill_super+0xe20/0x1a9c [ 217.516106][ T6168] get_tree_bdev+0x35c/0x54c [ 217.516926][ T6168] gfs2_get_tree+0x58/0x1b8 [ 217.517681][ T6168] vfs_get_tree+0x90/0x278 [ 217.518442][ T6168] do_new_mount+0x228/0x804 [ 217.519171][ T6168] path_mount+0x57c/0xfe8 [ 217.519881][ T6168] __arm64_sys_mount+0x488/0x5f8 [ 217.520688][ T6168] invoke_syscall+0x98/0x28c [ 217.521462][ T6168] el0_svc_common+0x13c/0x258 [ 217.522256][ T6168] do_el0_svc+0x5c/0x140 [ 217.523116][ T6168] el0_svc+0x78/0x1d0 [ 217.523926][ T6168] el0t_64_sync_handler+0xcc/0xe4 [ 217.524827][ T6168] el0t_64_sync+0x1a0/0x1a4 [ 217.527006][ T6168] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.529135][ T6168] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.707551][ T6170] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.708970][ T6170] CPU: 1 PID: 6170 Comm: syz.1.638 Not tainted syzkaller #0 [ 217.710301][ T6170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 217.712115][ T6170] Call trace: [ 217.712717][ T6170] dump_backtrace+0x0/0x458 [ 217.713530][ T6170] show_stack+0x2c/0x3c [ 217.714313][ T6170] __dump_stack+0x30/0x40 [ 217.715108][ T6170] dump_stack_lvl+0xf4/0x15c [ 217.715920][ T6170] dump_stack+0x1c/0x5c [ 217.716608][ T6170] sysfs_create_dir_ns+0x244/0x264 [ 217.717442][ T6170] kobject_add_internal+0x594/0xc2c [ 217.718354][ T6170] kobject_init_and_add+0x128/0x194 [ 217.719255][ T6170] gfs2_sys_fs_add+0x208/0x428 [ 217.720179][ T6170] gfs2_fill_super+0xe20/0x1a9c [ 217.721112][ T6170] get_tree_bdev+0x35c/0x54c [ 217.721999][ T6170] gfs2_get_tree+0x58/0x1b8 [ 217.722793][ T6170] vfs_get_tree+0x90/0x278 [ 217.723699][ T6170] do_new_mount+0x228/0x804 [ 217.724588][ T6170] path_mount+0x57c/0xfe8 [ 217.725441][ T6170] __arm64_sys_mount+0x488/0x5f8 [ 217.726356][ T6170] invoke_syscall+0x98/0x28c [ 217.727202][ T6170] el0_svc_common+0x13c/0x258 [ 217.728065][ T6170] do_el0_svc+0x5c/0x140 [ 217.728877][ T6170] el0_svc+0x78/0x1d0 [ 217.729728][ T6170] el0t_64_sync_handler+0xcc/0xe4 [ 217.730785][ T6170] el0t_64_sync+0x1a0/0x1a4 [ 217.732466][ T6170] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.734523][ T6170] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 217.846345][ T4882] Bluetooth: hci2: command 0x040f tx timeout [ 217.885465][ T6172] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 217.887149][ T6172] CPU: 0 PID: 6172 Comm: syz.1.639 Not tainted syzkaller #0 [ 217.888381][ T6172] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 217.890075][ T6172] Call trace: [ 217.890652][ T6172] dump_backtrace+0x0/0x458 [ 217.891440][ T6172] show_stack+0x2c/0x3c [ 217.892125][ T6172] __dump_stack+0x30/0x40 [ 217.892844][ T6172] dump_stack_lvl+0xf4/0x15c [ 217.893590][ T6172] dump_stack+0x1c/0x5c [ 217.894273][ T6172] sysfs_create_dir_ns+0x244/0x264 [ 217.895061][ T6172] kobject_add_internal+0x594/0xc2c [ 217.895922][ T6172] kobject_init_and_add+0x128/0x194 [ 217.896777][ T6172] gfs2_sys_fs_add+0x208/0x428 [ 217.897620][ T6172] gfs2_fill_super+0xe20/0x1a9c [ 217.898449][ T6172] get_tree_bdev+0x35c/0x54c [ 217.899207][ T6172] gfs2_get_tree+0x58/0x1b8 [ 217.899969][ T6172] vfs_get_tree+0x90/0x278 [ 217.900675][ T6172] do_new_mount+0x228/0x804 [ 217.901467][ T6172] path_mount+0x57c/0xfe8 [ 217.902196][ T6172] __arm64_sys_mount+0x488/0x5f8 [ 217.902987][ T6172] invoke_syscall+0x98/0x28c [ 217.903738][ T6172] el0_svc_common+0x13c/0x258 [ 217.904527][ T6172] do_el0_svc+0x5c/0x140 [ 217.905255][ T6172] el0_svc+0x78/0x1d0 [ 217.905948][ T6172] el0t_64_sync_handler+0xcc/0xe4 [ 217.906803][ T6172] el0t_64_sync+0x1a0/0x1a4 [ 217.907730][ T6172] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 217.909771][ T6172] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.077432][ T6174] sysfs: cannot create duplicate filename '/fs/gfs2/syz:syz' [ 218.079144][ T6174] CPU: 1 PID: 6174 Comm: syz.1.640 Not tainted syzkaller #0 [ 218.080383][ T6174] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 218.082077][ T6174] Call trace: [ 218.082607][ T6174] dump_backtrace+0x0/0x458 [ 218.083379][ T6174] show_stack+0x2c/0x3c [ 218.084053][ T6174] __dump_stack+0x30/0x40 [ 218.084830][ T6174] dump_stack_lvl+0xf4/0x15c [ 218.085656][ T6174] dump_stack+0x1c/0x5c [ 218.086418][ T6174] sysfs_create_dir_ns+0x244/0x264 [ 218.087348][ T6174] kobject_add_internal+0x594/0xc2c [ 218.088258][ T6174] kobject_init_and_add+0x128/0x194 [ 218.089151][ T6174] gfs2_sys_fs_add+0x208/0x428 [ 218.089963][ T6174] gfs2_fill_super+0xe20/0x1a9c [ 218.090785][ T6174] get_tree_bdev+0x35c/0x54c [ 218.091572][ T6174] gfs2_get_tree+0x58/0x1b8 [ 218.092461][ T6174] vfs_get_tree+0x90/0x278 [ 218.093362][ T6174] do_new_mount+0x228/0x804 [ 218.094295][ T6174] path_mount+0x57c/0xfe8 [ 218.095146][ T6174] __arm64_sys_mount+0x488/0x5f8 [ 218.095963][ T6174] invoke_syscall+0x98/0x28c [ 218.096759][ T6174] el0_svc_common+0x13c/0x258 [ 218.097572][ T6174] do_el0_svc+0x5c/0x140 [ 218.098292][ T6174] el0_svc+0x78/0x1d0 [ 218.099044][ T6174] el0t_64_sync_handler+0xcc/0xe4 [ 218.099971][ T6174] el0t_64_sync+0x1a0/0x1a4 [ 218.101655][ T27] INFO: task kworker/1:7:4137 blocked for more than 143 seconds. [ 218.103002][ T27] Not tainted syzkaller #0 [ 218.103857][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.105256][ T27] task:kworker/1:7 state:D stack: 0 pid: 4137 ppid: 2 flags:0x00000008 [ 218.109307][ T27] Workqueue: gfs_recovery gfs2_recover_func [ 218.110387][ T27] Call trace: [ 218.110959][ T27] __switch_to+0x2f4/0x540 [ 218.111750][ T27] __schedule+0xe20/0x1c6c [ 218.113062][ T27] schedule+0x11c/0x1c8 [ 218.113811][ T27] io_schedule+0x84/0x160 [ 218.114597][ T27] wait_on_page_bit_common+0x658/0xab4 [ 218.115473][ T27] wait_on_page_bit+0x58/0x68 [ 218.116227][ T27] gfs2_jhead_process_page+0x1e0/0x6b4 [ 218.117744][ T27] gfs2_find_jhead+0xc00/0xd40 [ 218.118539][ T27] gfs2_recover_func+0x578/0x164c [ 218.119386][ T27] process_one_work+0x7a4/0x1178 [ 218.120265][ T27] worker_thread+0x8fc/0x103c [ 218.121033][ T27] kthread+0x37c/0x460 [ 218.121664][ T27] ret_from_fork+0x10/0x20 [ 218.122461][ T27] INFO: task syz.0.16:4842 blocked for more than 143 seconds. [ 218.123662][ T27] Not tainted syzkaller #0 [ 218.124504][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.125932][ T27] task:syz.0.16 state:D stack: 0 pid: 4842 ppid: 4714 flags:0x00000009 [ 218.128899][ T27] Call trace: [ 218.129427][ T27] __switch_to+0x2f4/0x540 [ 218.130262][ T27] __schedule+0xe20/0x1c6c [ 218.131047][ T27] schedule+0x11c/0x1c8 [ 218.131795][ T6174] kobject_add_internal failed for syz:syz with -EEXIST, don't try to register things with the same name in the same directory. [ 218.131852][ T27] bit_wait+0x1c/0xac [ 218.134051][ T6174] gfs2: fsid=syz:syz: error -17 adding sysfs files [ 218.134727][ T27] out_of_line_wait_on_bit+0x16c/0x218 [ 218.137070][ T27] gfs2_recover_journal+0xf0/0x164 [ 218.137959][ T27] init_journal+0x1310/0x1dfc [ 218.138789][ T27] init_inodes+0xe0/0x2e0 [ 218.139506][ T27] gfs2_fill_super+0x129c/0x1a9c [ 218.140287][ T27] get_tree_bdev+0x35c/0x54c [ 218.141028][ T27] gfs2_get_tree+0x58/0x1b8 [ 218.141735][ T27] vfs_get_tree+0x90/0x278 [ 218.142429][ T27] do_new_mount+0x228/0x804 [ 218.143156][ T27] path_mount+0x57c/0xfe8 [ 218.143866][ T27] __arm64_sys_mount+0x488/0x5f8 [ 218.144701][ T27] invoke_syscall+0x98/0x28c [ 218.145459][ T27] el0_svc_common+0x13c/0x258 [ 218.146932][ T27] do_el0_svc+0x5c/0x140 [ 218.147640][ T27] el0_svc+0x78/0x1d0 [ 218.148345][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 218.149189][ T27] el0t_64_sync+0x1a0/0x1a4 [ 218.150096][ T27] [ 218.150096][ T27] Showing all locks held in the system: [ 218.151395][ T27] 1 lock held by khungtaskd/27: [ 218.152248][ T27] #0: ffff800014571460 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 218.153906][ T27] 2 locks held by getty/3803: [ 218.154697][ T27] #0: ffff0000d4f88098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 218.156888][ T27] #1: ffff80001befb2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf90 [ 218.158590][ T27] 2 locks held by kworker/1:7/4137: [ 218.159450][ T27] #0: ffff0000c7219d38 ((wq_completion)gfs_recovery){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 218.161306][ T27] #1: ffff80001fb77c40 ((work_completion)(&jd->jd_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 218.163329][ T27] 3 locks held by kworker/1:16/4146: [ 218.164251][ T27] #0: ffff0000c0020938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x67c/0x1178 [ 218.166092][ T27] #1: ffff80001fc07c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x6c0/0x1178 [ 218.169166][ T27] #2: ffff0000d28ce240 (&data->fib_lock){+.+.}-{3:3}, at: nsim_fib_event_work+0x1d8/0x27c4 [ 218.170809][ T27] 1 lock held by syz.0.16/4842: [ 218.171747][ T27] #0: ffff0000d88140e0 (&type->s_umount_key#51/1){+.+.}-{3:3}, at: alloc_super+0x1a4/0x860 [ 218.173817][ T27] 2 locks held by syz.1.640/6174: [ 218.174819][ T27] #0: ffff0000cbb5c518 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xdc/0x6c4 [ 218.176878][ T27] #1: ffff0000cbd30468 (&lo->lo_mutex){+.+.}-{3:3}, at: lo_release+0x50/0x200 [ 218.178468][ T27] [ 218.178882][ T27] ============================================= [ 218.178882][ T27] [ 218.180362][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 218.181573][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 [ 218.182876][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026 [ 218.184657][ T27] Call trace: [ 218.185290][ T27] dump_backtrace+0x0/0x458 [ 218.186162][ T27] show_stack+0x2c/0x3c [ 218.187034][ T27] __dump_stack+0x30/0x40 [ 218.187943][ T27] dump_stack_lvl+0xf4/0x15c [ 218.188904][ T27] dump_stack+0x1c/0x5c [ 218.189679][ T27] panic+0x2fc/0x860 [ 218.190420][ T27] hung_task_panic+0x0/0x2c [ 218.191294][ T27] kthread+0x37c/0x460 [ 218.192068][ T27] ret_from_fork+0x10/0x20 [ 218.192867][ T27] SMP: stopping secondary CPUs [ 218.193704][ T27] Kernel Offset: disabled [ 218.194484][ T27] CPU features: 0xa,000003c1,7d33ffd9 [ 218.195454][ T27] Memory Limit: none [ 218.538382][ T27] Rebooting in 86400 seconds..