[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.61' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.811605] VFS: Found a V7 FS (block size = 512) on device loop0 [ 32.827364] attempt to access beyond end of device [ 32.841731] loop0: rw=0, want=9698052, limit=112 [ 32.846973] Buffer I/O error on dev loop0, logical block 9698051, async page read [ 32.855040] attempt to access beyond end of device [ 32.860066] loop0: rw=0, want=565370, limit=112 [ 32.865226] Buffer I/O error on dev loop0, logical block 565369, async page read [ 32.872803] attempt to access beyond end of device [ 32.877946] loop0: rw=0, want=10282938, limit=112 [ 32.882793] Buffer I/O error on dev loop0, logical block 10282937, async page read [ 32.890624] attempt to access beyond end of device [ 32.895641] loop0: rw=0, want=7284998, limit=112 [ 32.900391] Buffer I/O error on dev loop0, logical block 7284997, async page read [ 32.908182] attempt to access beyond end of device [ 32.913129] loop0: rw=0, want=3984204, limit=112 [ 32.917965] Buffer I/O error on dev loop0, logical block 3984203, async page read [ 32.925805] attempt to access beyond end of device [ 32.930732] loop0: rw=0, want=6992027, limit=112 [ 32.935558] Buffer I/O error on dev loop0, logical block 6992026, async page read [ 32.943287] attempt to access beyond end of device [ 32.948375] loop0: rw=0, want=6756799, limit=112 [ 32.953310] Buffer I/O error on dev loop0, logical block 6756798, async page read [ 32.961044] attempt to access beyond end of device [ 32.966048] loop0: rw=0, want=575895, limit=112 [ 32.970799] Buffer I/O error on dev loop0, logical block 575894, async page read [ 32.978612] BUG: sleeping function called from invalid context at fs/buffer.c:1319 [ 32.986497] in_atomic(): 1, irqs_disabled(): 0, pid: 8094, name: syz-executor236 [ 32.994035] 2 locks held by syz-executor236/8094: [ 32.998939] #0: 00000000a6a3bca6 (&type->i_mutex_dir_key#7){.+.+}, at: walk_component+0x798/0xda0 [ 33.008121] #1: 00000000221e706a (pointers_lock){.+.+}, at: get_block+0x171/0x1510 [ 33.015984] Preemption disabled at: [ 33.015991] [<0000000000000000>] (null) [ 33.024491] CPU: 1 PID: 8094 Comm: syz-executor236 Not tainted 4.19.211-syzkaller #0 [ 33.032362] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 33.041697] Call Trace: [ 33.044269] dump_stack+0x1fc/0x2ef [ 33.047876] ___might_sleep.cold+0x235/0x250 [ 33.052268] __bread_gfp+0x3f/0x300 [ 33.055888] get_branch+0x2cd/0x640 [ 33.059505] get_block+0x194/0x1510 [ 33.063205] ? block_to_path.isra.0+0x440/0x440 [ 33.067855] ? create_page_buffers+0x212/0x350 [ 33.072422] ? alloc_page_buffers+0x2da/0x5c0 [ 33.076900] ? create_empty_buffers+0x4e7/0x760 [ 33.081550] ? do_raw_spin_unlock+0x171/0x230 [ 33.086027] ? _raw_spin_unlock+0x29/0x40 [ 33.090174] ? create_page_buffers+0x190/0x350 [ 33.094739] block_read_full_page+0x288/0xd10 [ 33.099221] ? block_to_path.isra.0+0x440/0x440 [ 33.103874] ? __bread_gfp+0x300/0x300 [ 33.107743] ? add_to_page_cache_locked+0x40/0x40 [ 33.112571] do_read_cache_page+0x533/0x1170 [ 33.116976] ? sysv_bmap+0x30/0x30 [ 33.120517] sysv_find_entry+0x21a/0x6f0 [ 33.124613] sysv_inode_by_name+0x6d/0x3d0 [ 33.128832] ? sysv_dotdot+0x150/0x150 [ 33.132712] ? __lockdep_init_map+0x100/0x5a0 [ 33.137190] sysv_lookup+0x7c/0x100 [ 33.140807] __lookup_slow+0x246/0x4a0 [ 33.144678] ? follow_dotdot_rcu+0x1040/0x1040 [ 33.149378] ? lookup_fast+0x4e9/0x1080 [ 33.153427] ? walk_component+0x798/0xda0 [ 33.157560] walk_component+0x7ac/0xda0 [ 33.161520] ? lookup_fast+0x1080/0x1080 [ 33.165563] ? walk_component+0xda0/0xda0 [ 33.169696] path_lookupat+0x1ff/0x8d0 [ 33.173586] ? path_mountpoint+0xac0/0xac0 [ 33.177805] ? trace_hardirqs_off+0x64/0x200 [ 33.182205] filename_lookup+0x1ac/0x5a0 [ 33.186260] ? filename_parentat+0x590/0x590 [ 33.190661] ? __phys_addr_symbol+0x2c/0x70 [ 33.194969] ? __check_object_size+0x17b/0x3e0 [ 33.199555] ? getname_flags+0x25b/0x590 [ 33.203603] do_mount+0x147/0x2f50 [ 33.207133] ? kfree+0x110/0x210 [ 33.210487] ? task_work_run+0x11c/0x1c0 [ 33.214529] ? copy_mount_string+0x40/0x40 [ 33.218743] ? __close_fd+0x128/0x200 [ 33.222645] ? lock_downgrade+0x720/0x720 [ 33.226866] ? lock_acquire+0x170/0x3c0 [ 33.230829] ? dnotify_flush+0x75/0x2d0 [ 33.234787] ? copy_mount_options+0x26f/0x380 [ 33.239265] ksys_mount+0xcf/0x130 [ 33.242788] __x64_sys_mount+0xba/0x150 [ 33.246743] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 33.251415] do_syscall_64+0xf9/0x620 [ 33.255200] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.260372] RIP: 0033:0x7f1853cf8049 [ 33.264065] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 [ 33.282948] RSP: 002b:00007ffd820bcb68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 33.290638] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f1853cf8049 [ 33.297889] RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000000 [ 33.305137] RBP: 00007f1853cb7620 R08: 0000000000000000 R09: 0000000000000000 [ 33.312387] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1853cb76b0 [ 33.319634] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.328158] attempt to access beyond end of device [ 33.333108] loop0: rw=0, want=10310910, limit=112 [ 33.338400] Buffer I/O error on dev loop0, logical block 10310909, async page read [ 33.346494] attempt to access beyond end of device [ 33.351426] loop0: rw=0, want=9216536, limit=112 [ 33.356884] Buffer I/O error on dev loop0, logical block 9216535, async page rea