[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.94' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.746129] VFS: Found a Xenix FS (block size = 512) on device loop0 [ 29.754072] attempt to access beyond end of device [ 29.760505] loop0: rw=0, want=3245513, limit=128 [ 29.765345] Buffer I/O error on dev loop0, logical block 3245512, async page read [ 29.773743] attempt to access beyond end of device [ 29.778945] loop0: rw=0, want=8767868, limit=128 [ 29.783725] Buffer I/O error on dev loop0, logical block 8767867, async page read [ 29.791978] attempt to access beyond end of device [ 29.796889] loop0: rw=0, want=13269810, limit=128 [ 29.801789] Buffer I/O error on dev loop0, logical block 13269809, async page read [ 29.809571] attempt to access beyond end of device [ 29.814478] loop0: rw=0, want=8073606, limit=128 [ 29.819267] Buffer I/O error on dev loop0, logical block 8073605, async page read [ 29.826897] attempt to access beyond end of device [ 29.831865] loop0: rw=0, want=3245516, limit=128 [ 29.836610] Buffer I/O error on dev loop0, logical block 3245515, async page read [ 29.844300] attempt to access beyond end of device [ 29.849638] loop0: rw=0, want=8768636, limit=128 [ 29.854374] Buffer I/O error on dev loop0, logical block 8768635, async page read [ 29.862045] attempt to access beyond end of device [ 29.866957] loop0: rw=0, want=13466418, limit=128 [ 29.872326] Buffer I/O error on dev loop0, logical block 13466417, async page read [ 29.880115] attempt to access beyond end of device [ 29.885031] loop0: rw=0, want=8073606, limit=128 [ 29.889817] Buffer I/O error on dev loop0, logical block 8073605, async page read [ 29.897530] BUG: sleeping function called from invalid context at fs/buffer.c:1381 [ 29.905353] in_atomic(): 1, irqs_disabled(): 0, pid: 7989, name: syz-executor206 [ 29.912951] 2 locks held by syz-executor206/7989: [ 29.917817] #0: (&iint->mutex){+.+.}, at: [] process_measurement+0x270/0xb20 [ 29.926812] #1: (pointers_lock){.+.+}, at: [] get_block+0x153/0x1230 [ 29.935111] Preemption disabled at: [ 29.935119] [< (null)>] (null) [ 29.943612] CPU: 0 PID: 7989 Comm: syz-executor206 Not tainted 4.14.302-syzkaller #0 [ 29.951467] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.961806] Call Trace: [ 29.964375] dump_stack+0x1b2/0x281 [ 29.967976] ___might_sleep.cold+0x235/0x250 [ 29.972359] __bread_gfp+0x3e/0x2e0 [ 29.975979] get_branch+0x2ac/0x600 [ 29.979600] get_block+0x176/0x1230 [ 29.983213] ? block_to_path.isra.0+0x420/0x420 [ 29.987859] ? create_page_buffers+0x14d/0x1c0 [ 29.992418] ? create_empty_buffers+0x282/0x470 [ 29.997061] ? do_raw_spin_unlock+0x164/0x220 [ 30.001529] ? _raw_spin_unlock+0x29/0x40 [ 30.005649] ? create_page_buffers+0xce/0x1c0 [ 30.010117] block_read_full_page+0x25e/0x8d0 [ 30.014588] ? block_to_path.isra.0+0x420/0x420 [ 30.019231] ? __lru_cache_add+0x178/0x250 [ 30.023441] ? __bread_gfp+0x2e0/0x2e0 [ 30.027301] ? add_to_page_cache_lru+0x136/0x2b0 [ 30.032031] ? add_to_page_cache_locked+0x40/0x40 [ 30.036848] __do_page_cache_readahead+0x69b/0x940 [ 30.041753] ? read_cache_pages+0x6a0/0x6a0 [ 30.046054] ondemand_readahead.isra.0+0x514/0xb60 [ 30.050958] page_cache_sync_readahead+0xa6/0xf0 [ 30.055691] generic_file_read_iter+0xfbc/0x21c0 [ 30.060427] ? iov_iter_init+0xa6/0x1c0 [ 30.064377] __vfs_read+0x449/0x620 [ 30.067982] ? vfs_copy_file_range+0x9b0/0x9b0 [ 30.072538] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.077883] integrity_kernel_read+0x11b/0x1b0 [ 30.082438] ? integrity_inode_free+0x300/0x300 [ 30.087079] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 30.092070] ? kmem_cache_alloc_trace+0x36c/0x3d0 [ 30.096887] ima_calc_file_hash+0x3ee/0x780 [ 30.101185] ? ima_alloc_tfm+0x9a/0xc0 [ 30.105051] ? ima_calc_file_hash+0x14a/0x780 [ 30.109520] ima_collect_measurement+0x39d/0x430 [ 30.114252] ? ima_get_action+0x70/0x70 [ 30.118204] ? vfs_getxattr_alloc+0xc8/0x2d0 [ 30.122594] ? ima_get_cache_status+0x170/0x170 [ 30.127238] process_measurement+0x78b/0xb20 [ 30.131623] ? ima_rdwr_violation_check+0x3a0/0x3a0 [ 30.136620] ? apparmor_file_open+0x4ed/0x910 [ 30.141089] ? apparmor_file_alloc_security+0x800/0x800 [ 30.146434] ? lock_downgrade+0x740/0x740 [ 30.150555] ? security_file_open+0x82/0x190 [ 30.154938] ? file_ra_state_init+0xc4/0x1e0 [ 30.159331] ? do_dentry_open+0x698/0xec0 [ 30.163452] ? __inode_permission+0xcd/0x2f0 [ 30.167840] ? vfs_open+0x10d/0x220 [ 30.171439] path_openat+0x10ad/0x2970 [ 30.175305] ? path_lookupat+0x780/0x780 [ 30.179340] ? trace_hardirqs_on+0x10/0x10 [ 30.183547] ? trace_hardirqs_on+0x10/0x10 [ 30.187756] do_filp_open+0x179/0x3c0 [ 30.191530] ? may_open_dev+0xe0/0xe0 [ 30.195310] ? lock_downgrade+0x740/0x740 [ 30.199431] ? do_raw_spin_unlock+0x164/0x220 [ 30.203900] ? _raw_spin_unlock+0x29/0x40 [ 30.208025] ? __alloc_fd+0x1be/0x490 [ 30.211800] ? _raw_spin_unlock_irq+0x24/0x80 [ 30.216269] do_sys_open+0x296/0x410 [ 30.219959] ? filp_open+0x60/0x60 [ 30.223473] ? do_syscall_64+0x4c/0x640 [ 30.227421] ? do_sys_open+0x410/0x410 [ 30.231280] do_syscall_64+0x1d5/0x640 [ 30.235144] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.240305] RIP: 0033:0x7f4e26667779 [ 30.243990] RSP: 002b:00007fffd0ae5fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 30.251669] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f4e26667779 [ 30.258916] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000000 [ 30.266159] RBP: 00007f4e26627010 R08: 0000000000009e07 R09: 0000000000000000 [ 30.273401] R10: 00007fffd0ae5e80 R11: 0000000000000246 R12: 00007f4e266270a0 [ 30.280645] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.289487] attempt to access beyond end of device [ 30.294421] loop0: rw=0, want=3245519, limit=128 [ 30.299227] Buffer I/O error on dev loop0, logical block 3245518, async page read [ 30.306875] attempt to access beyond end of device [ 30.311859] loop0: rw=0, want=8769404, limit=128 [ 30.316600] Buffer I/O error on dev loop0, logical block 8769403, async page read [ 30.324573] attempt to access beyond end of device [ 30.329550] loop0: rw=0, want=3245513, limit=128 [ 30.334312] attempt to access beyond end of device [ 30.339266] loop0: rw=0, want=8767868, limit=128 [ 30.344028] attempt to access beyond end of device [ 30.348997] loop0: rw=0, want=13269810, limit=128 [ 30.353841] attempt to access beyond end of device [ 30.358797] loop0: rw=0, want=8073606, limit=128 [ 30.363558] attempt to access beyond end of device [ 30.368520] loop0: rw=0, want=3245516, limit=128 [ 30.373276] attempt to access beyond end of device [ 30.378235] loop0: rw=0, want=8768636, limit=128 [ 30.382995] attempt to access beyond end of device [ 30.387901] loop0: rw=0, want=13466418, limit=128 [ 30.392799] attempt to access beyond end of device [ 30.397711] lo