[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.230' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.574044][ T8459] loop0: detected capacity change from 4096 to 0 [ 48.582509][ T8459] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). [ 48.592020][ T8459] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. [ 48.606174][ T8459] EXT4-fs (loop0): mount failed executing program [ 53.720257][ T8467] loop0: detected capacity change from 4096 to 0 [ 53.728183][ T8467] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). [ 53.738061][ T8467] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. [ 53.752393][ T8467] EXT4-fs (loop0): mount failed executing program [ 58.888618][ T8475] loop0: detected capacity change from 4096 to 0 [ 58.897182][ T8475] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). [ 58.906717][ T8475] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. [ 58.921117][ T8475] EXT4-fs (loop0): mount failed executing program [ 64.084363][ T8483] loop0: detected capacity change from 4096 to 0 [ 64.092447][ T8483] Quota error (device loop0): v2_read_file_info: Free block number too big (0 >= 0). [ 64.102249][ T8483] EXT4-fs warning (device loop0): ext4_enable_quotas:6384: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. [ 64.116589][ T8483] EXT4-fs (loop0): mount failed [ 65.185381][ T8458] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810fce1900 (size 64): comm "syz-executor360", pid 8475, jiffies 4294943158 (age 12.390s) hex dump (first 32 bytes): 00 38 a5 09 81 88 ff ff 00 00 00 00 00 00 00 00 .8.............. 00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00 ............H... backtrace: [<00000000bef9b4e3>] v2_read_file_info+0x1ae/0x430 [<00000000f20f6cc4>] dquot_load_quota_sb+0x351/0x650 [<00000000df25e1ea>] dquot_load_quota_inode+0xda/0x160 [<000000001941b88f>] ext4_enable_quotas+0x1b2/0x2f0 [<0000000099376693>] ext4_fill_super+0x3fa5/0x5ad0 [<000000008143dcee>] mount_bdev+0x223/0x260 [<00000000373a1e8d>] legacy_get_tree+0x2b/0x90 [<000000007329837b>] vfs_get_tree+0x28/0x100 [<0000000022019c6e>] path_mount+0xc5e/0x1170 [<00000000c7279014>] __x64_sys_mount+0x18e/0x1d0 [<000000003f67aea8>] do_syscall_64+0x2d/0x70 [<000000004eb6a7e5>] entry_SYSCALL_64_after_hwframe+0x44/0xa9