Warning: Permanently added '10.128.0.238' (ED25519) to the list of known hosts. executing program syzkaller login: [ 34.618801][ T4222] loop0: detected capacity change from 0 to 128 [ 34.623722][ T4222] oldfs: cannot read superblock [ 34.625077][ T4222] ------------[ cut here ]------------ [ 34.626553][ T4222] VFS: brelse: Trying to free free buffer [ 34.628187][ T4222] WARNING: CPU: 0 PID: 4222 at fs/buffer.c:1145 invalidate_bh_lru+0x128/0x200 [ 34.630567][ T4222] Modules linked in: [ 34.631612][ T4222] CPU: 0 PID: 4222 Comm: syz-executor150 Not tainted 6.1.86-syzkaller #0 [ 34.633836][ T4222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 34.636591][ T4222] pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 34.638661][ T4222] pc : invalidate_bh_lru+0x128/0x200 [ 34.640092][ T4222] lr : invalidate_bh_lru+0x128/0x200 [ 34.641506][ T4222] sp : ffff80001dd67450 [ 34.642637][ T4222] x29: ffff80001dd67450 x28: ffff80001583d000 x27: ffff0001b4393a0e [ 34.644782][ T4222] x26: 0000000000000001 x25: 00000000ffffffff x24: ffff0001b4368698 [ 34.646966][ T4222] x23: 0000000000000000 x22: dfff800000000000 x21: 0000000000000000 [ 34.649141][ T4222] x20: ffff0000e28a95d0 x19: ffff800012371bc0 x18: ffff80001dd66840 [ 34.651344][ T4222] x17: 0000000000000000 x16: ffff800012156b1c x15: 0000000000000000 [ 34.653520][ T4222] x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 [ 34.655664][ T4222] x11: 0000000000ff0100 x10: 0000000000000000 x9 : 63e360f3ffdf7900 [ 34.657782][ T4222] x8 : 63e360f3ffdf7900 x7 : 0000000000000001 x6 : 0000000000000001 [ 34.660039][ T4222] x5 : ffff80001dd66d38 x4 : ffff800015922b00 x3 : ffff800008588484 [ 34.662195][ T4222] x2 : 0000000000000001 x1 : 0000000100000002 x0 : 0000000000000000 [ 34.664501][ T4222] Call trace: [ 34.665426][ T4222] invalidate_bh_lru+0x128/0x200 [ 34.666792][ T4222] smp_call_function_many_cond+0x828/0x32b8 [ 34.668455][ T4222] on_each_cpu_cond_mask+0x5c/0xc4 [ 34.669820][ T4222] invalidate_bh_lrus+0x34/0x40 [ 34.671152][ T4222] blkdev_flush_mapping+0x128/0x280 [ 34.672590][ T4222] blkdev_put+0x464/0x6e0 [ 34.673691][ T4222] kill_block_super+0x98/0xdc [ 34.674972][ T4222] deactivate_locked_super+0xac/0x124 [ 34.676381][ T4222] mount_bdev+0x294/0x370 [ 34.677534][ T4222] sysv_mount+0x44/0x58 [ 34.678666][ T4222] legacy_get_tree+0xd4/0x16c [ 34.679930][ T4222] vfs_get_tree+0x90/0x274 [ 34.681084][ T4222] do_new_mount+0x278/0x8fc [ 34.682250][ T4222] path_mount+0x590/0xe5c [ 34.683428][ T4222] __arm64_sys_mount+0x45c/0x594 [ 34.684773][ T4222] invoke_syscall+0x98/0x2c0 [ 34.686017][ T4222] el0_svc_common+0x138/0x258 [ 34.687291][ T4222] do_el0_svc+0x64/0x218 [ 34.688406][ T4222] el0_svc+0x58/0x168 [ 34.689489][ T4222] el0t_64_sync_handler+0x84/0xf0 [ 34.690848][ T4222] el0t_64_sync+0x18c/0x190 [ 34.692028][ T4222] irq event stamp: 15964 [ 34.693137][ T4222] hardirqs last enabled at (15963): [] kasan_quarantine_put+0xdc/0x204 [ 34.695850][ T4222] hardirqs last disabled at (15964): [] smp_call_function_many_cond+0x81c/0x32b8 [ 34.698680][ T4222] softirqs last enabled at (14828): [] __do_softirq+0xc1c/0xe38 [ 34.701209][ T4222] softirqs last disabled at (14811): [] ____do_softirq+0x14/0x20 [ 34.703702][ T4222] ---[ end trace 0000000000000000 ]--- [ 34.738253][ T4223] I/O error, dev loop0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class 2