Warning: Permanently added '10.128.10.6' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.076913][ T8472] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 49.086667][ T8472] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048) [ 49.116144][ T8472] NILFS (loop0): invalid segment: Magic number mismatch [ 49.123200][ T8472] NILFS (loop0): unable to fall back to spare super block [ 49.130816][ T8472] NILFS (loop0): error -22 while searching super root executing program [ 55.164621][ T8479] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 55.174561][ T8479] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048) [ 55.203804][ T8479] NILFS (loop0): invalid segment: Magic number mismatch [ 55.210893][ T8479] NILFS (loop0): unable to fall back to spare super block [ 55.218512][ T8479] NILFS (loop0): error -22 while searching super root [ 61.136249][ T8471] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881110c8f40 (size 32): comm "syz-executor894", pid 8479, jiffies 4294942790 (age 8.030s) hex dump (first 32 bytes): 6c 6f 6f 70 30 00 00 00 00 00 00 00 00 00 00 00 loop0........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000002a879a43>] kstrdup+0x36/0x70 [<0000000068356e6a>] kstrdup_const+0x53/0x80 [<00000000beef27f8>] kvasprintf_const+0xc2/0x110 [<00000000fa036169>] kobject_set_name_vargs+0x3b/0xe0 [<00000000c1ae635f>] kobject_init_and_add+0x6d/0xc0 [<0000000033a7e260>] nilfs_sysfs_create_device_group+0x98/0x3a0 [<00000000ed96fbb9>] init_nilfs+0x523/0x680 [<0000000047c27b86>] nilfs_mount+0x51b/0x890 [<00000000bc71acf1>] legacy_get_tree+0x2b/0x90 [<000000004ee940ed>] vfs_get_tree+0x28/0x100 [<00000000badf1d9b>] path_mount+0xc5e/0x1170 [<00000000214ca321>] __x64_sys_mount+0x18e/0x1d0 [<00000000106f08a7>] do_syscall_64+0x2d/0x70 [<00000000534b6078>] entry_SYSCALL_64_after_hwframe+0x44/0xa9