Warning: Permanently added '10.128.10.27' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 121.010438][ T5855] sysfs: cannot create duplicate filename '/devices/virtual/block/md2' [ 121.013881][ T5855] CPU: 1 PID: 5855 Comm: syz-executor350 Not tainted 5.15.178-syzkaller #0 [ 121.016256][ T5855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 121.018979][ T5855] Call trace: [ 121.019847][ T5855] dump_backtrace+0x0/0x530 [ 121.020959][ T5855] show_stack+0x2c/0x3c [ 121.022053][ T5855] dump_stack_lvl+0x108/0x170 [ 121.023246][ T5855] dump_stack+0x1c/0x58 [ 121.024379][ T5855] sysfs_create_dir_ns+0x278/0x318 [ 121.025681][ T5855] kobject_add_internal+0x384/0x8f0 [ 121.027103][ T5855] kobject_add+0x14c/0x21c [ 121.028242][ T5855] device_add+0x400/0xef4 [ 121.029448][ T5855] device_add_disk+0x2d0/0xacc [ 121.030622][ T5855] md_alloc+0x6bc/0xa80 [ 121.031875][ T5855] md_probe+0x78/0x94 [ 121.032895][ T5855] blk_request_module+0x184/0x1a8 [ 121.034218][ T5855] blkdev_get_no_open+0x4c/0x178 [ 121.035514][ T5855] blkdev_get_by_dev+0x8c/0x89c [ 121.036712][ T5855] blkdev_open+0x10c/0x274 [ 121.037837][ T5855] do_dentry_open+0x780/0xed8 [ 121.039065][ T5855] vfs_open+0x7c/0x90 [ 121.040153][ T5855] path_openat+0x1ea0/0x26cc [ 121.041407][ T5855] do_filp_open+0x1a8/0x3b4 [ 121.042532][ T5855] do_sys_openat2+0x128/0x3e0 [ 121.043793][ T5855] __arm64_sys_openat+0x1f0/0x240 [ 121.045101][ T5855] invoke_syscall+0x98/0x2b8 [ 121.046336][ T5855] el0_svc_common+0x138/0x258 [ 121.047603][ T5855] do_el0_svc+0x58/0x14c [ 121.048699][ T5855] el0_svc+0x7c/0x1f0 [ 121.049824][ T5855] el0t_64_sync_handler+0x84/0xe4 [ 121.051201][ T5855] el0t_64_sync+0x1a0/0x1a4 [ 121.054604][ T5855] kobject_add_internal failed for md2 with -EEXIST, don't try to register things with the same name in the same directory. [ 121.058399][ T5855] ------------[ cut here ]------------ [ 121.059785][ T5855] WARNING: CPU: 1 PID: 5855 at block/genhd.c:543 device_add_disk+0x5d8/0xacc [ 121.062081][ T5855] Modules linked in: [ 121.063174][ T5855] CPU: 1 PID: 5855 Comm: syz-executor350 Not tainted 5.15.178-syzkaller #0 executing program [ 121.065507][ T5855] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 [ 121.068160][ T5855] pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 121.070184][ T5855] pc : device_add_disk+0x5d8/0xacc [ 121.071664][ T5855] lr : device_add_disk+0x5d4/0xacc [ 121.072965][ T5855] sp : ffff800024427350 [ 121.074032][ T5855] x29: ffff8000244273b0 x28: dfff800000000000 x27: ffff0000e18f3ac0 [ 121.076102][ T5855] x26: ffff0000e18f3fbc x25: 00000000ffffffef x24: ffff0000d13e24a0 [ 121.078162][ T5855] x23: 1fffe0001a27c494 x22: 0000000000000001 x21: ffff0000d13e2490 [ 121.080323][ T5855] x20: 0000000000000009 x19: ffff0000d13e2400 x18: 1fffe00036832d8e [ 121.082331][ T5855] x17: 1fffe00036832d8e x16: ffff8000082ec940 x15: ffff8000089765ec [ 121.084369][ T5855] x14: ffff800008975f20 x13: ffff800011b4a01c x12: 0000000000000001 [ 121.086223][ T5855] x11: 0000000000000000 x10: 0000000000000000 x9 : ffff0000d10eb680 [ 121.088008][ T5855] x8 : ffff80000a8dec58 x7 : 0000000000000000 x6 : ffff80000805d4a8 [ 121.090159][ T5855] x5 : ffff0000c23bdfd8 x4 : 0000000000000000 x3 : ffff80000abf8110 [ 121.092270][ T5855] x2 : 0000000000000001 x1 : 0000000000000009 x0 : 0000000000000103 [ 121.094493][ T5855] Call trace: [ 121.095367][ T5855] device_add_disk+0x5d8/0xacc [ 121.096626][ T5855] md_alloc+0x6bc/0xa80 [ 121.097715][ T5855] md_probe+0x78/0x94 [ 121.098698][ T5855] blk_request_module+0x184/0x1a8 [ 121.100059][ T5855] blkdev_get_no_open+0x4c/0x178 [ 121.101335][ T5855] blkdev_get_by_dev+0x8c/0x89c [ 121.102591][ T5855] blkdev_open+0x10c/0x274 [ 121.103812][ T5855] do_dentry_open+0x780/0xed8 [ 121.105117][ T5855] vfs_open+0x7c/0x90 [ 121.106163][ T5855] path_openat+0x1ea0/0x26cc [ 121.107352][ T5855] do_filp_open+0x1a8/0x3b4 [ 121.108454][ T5855] do_sys_openat2+0x128/0x3e0 [ 121.109698][ T5855] __arm64_sys_openat+0x1f0/0x240 [ 121.111006][ T5855] invoke_syscall+0x98/0x2b8 [ 121.112212][ T5855] el0_svc_common+0x138/0x258 [ 121.113526][ T5855] do_el0_svc+0x58/0x14c [ 121.114600][ T5855] el0_svc+0x7c/0x1f0 [ 121.115563][ T5855] el0t_64_sync_handler+0x84/0xe4 [ 121.117012][ T5855] el0t_64_sync+0x1a0/0x1a4 [ 121.118183][ T5855] irq event stamp: 986 [ 121.119296][ T5855] hardirqs last enabled at (985): [] kasan_quarantine_put+0xdc/0x204 [ 121.121835][ T5855] hardirqs last disabled at (986): [] el1_dbg+0x24/0x80 [ 121.124000][ T5855] softirqs last enabled at (952): [] handle_softirqs+0xb88/0xdbc [ 121.126401][ T5855] softirqs last disabled at (929): [] __irq_exit_rcu+0x268/0x4d8 [ 121.128740][ T5855] ---[ end trace ab4392f939eb474e ]--- [ 121.130823][ T5855] kobject_add_internal failed for md (error: -2 parent: md2) executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program