[ OK ] Started OpenBSD Secure Shell server. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.1.132' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 26.781992] ====================================================== [ 26.781992] WARNING: the mand mount option is being deprecated and [ 26.781992] will be removed in v5.15! [ 26.781992] ====================================================== [ 26.806869] kasan: CONFIG_KASAN_INLINE enabled [ 26.811477] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.820267] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 26.826495] Modules linked in: [ 26.829665] CPU: 1 PID: 7969 Comm: syz-executor243 Not tainted 4.14.300-syzkaller #0 [ 26.837516] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 26.846843] task: ffff8880aae80580 task.stack: ffff888095948000 [ 26.852874] RIP: 0010:hfs_find_init+0x70/0x220 [ 26.857424] RSP: 0018:ffff88809594f600 EFLAGS: 00010202 [ 26.862757] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 26.869999] RDX: 0000000000000008 RSI: ffff88809594f668 RDI: ffff88809594f680 [ 26.877244] RBP: ffff88809594f668 R08: 0000000000000000 R09: ffffffff8ae15f04 [ 26.884603] R10: 00000000001466e9 R11: ffff8880aae80580 R12: 0000000000000004 [ 26.891850] R13: 0000000000000040 R14: ffff8880b332b772 R15: ffff88809594f668 [ 26.899098] FS: 0000555555e37300(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 [ 26.907303] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.913160] CR2: 00007ffe28d6d000 CR3: 00000000ae791000 CR4: 00000000003406e0 [ 26.920406] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.927651] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.934893] Call Trace: [ 26.937465] hfs_ext_read_extent+0x15e/0x930 [ 26.941845] ? __hfs_ext_write_extent+0x4d0/0x4d0 [ 26.946682] ? create_page_buffers+0x14d/0x1c0 [ 26.951238] ? lock_downgrade+0x740/0x740 [ 26.955357] hfs_get_block+0x453/0x6d0 [ 26.959218] block_read_full_page+0x25e/0x8d0 [ 26.963686] ? hfs_extend_file+0xa40/0xa40 [ 26.967893] ? __lru_cache_add+0x178/0x250 [ 26.972098] ? __bread_gfp+0x2e0/0x2e0 [ 26.975958] ? add_to_page_cache_locked+0x40/0x40 [ 26.980810] ? alloc_pages_current+0x15d/0x260 [ 26.985470] do_read_cache_page+0x38e/0xc10 [ 26.989791] ? hfs_bmap+0x30/0x30 [ 26.993225] hfs_btree_open+0x667/0x1300 [ 26.997260] hfs_mdb_get+0x129c/0x1b40 [ 27.001125] ? hfs_mdb_put+0x370/0x370 [ 27.004990] ? lock_downgrade+0x740/0x740 [ 27.009112] ? __lockdep_init_map+0x100/0x560 [ 27.013580] ? __lockdep_init_map+0x100/0x560 [ 27.018046] hfs_fill_super+0xcdb/0x1250 [ 27.022080] ? hfs_remount+0x1b0/0x1b0 [ 27.025938] ? reacquire_held_locks+0xb5/0x3f0 [ 27.030490] ? vsnprintf+0x260/0x1340 [ 27.034263] ? pointer+0x9e0/0x9e0 [ 27.037774] ? lock_downgrade+0x740/0x740 [ 27.041891] ? snprintf+0xa5/0xd0 [ 27.045314] ? vsprintf+0x30/0x30 [ 27.048741] ? ns_test_super+0x50/0x50 [ 27.052598] ? set_blocksize+0x125/0x380 [ 27.056630] mount_bdev+0x2b3/0x360 [ 27.060231] ? hfs_remount+0x1b0/0x1b0 [ 27.064090] mount_fs+0x92/0x2a0 [ 27.067430] vfs_kern_mount.part.0+0x5b/0x470 [ 27.071896] do_mount+0xe65/0x2a30 [ 27.075411] ? retint_kernel+0x2d/0x2d [ 27.079268] ? copy_mount_string+0x40/0x40 [ 27.083476] ? memset+0x20/0x40 [ 27.086730] ? copy_mount_options+0x1fa/0x2f0 [ 27.091194] ? copy_mnt_ns+0xa30/0xa30 [ 27.095057] SyS_mount+0xa8/0x120 [ 27.098487] ? copy_mnt_ns+0xa30/0xa30 [ 27.102345] do_syscall_64+0x1d5/0x640 [ 27.106205] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 27.111370] Code: 48 c1 ea 03 80 3c 02 00 0f 85 ad 01 00 00 4c 8d 6b 40 48 c7 45 18 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 5c 01 00 00 8b 43 40 be c0 [ 27.130431] RIP: hfs_find_init+0x70/0x220 RSP: ffff88809594f600 [ 27.136851] ---[ end trace aaade7fea7fb7976 ]--- [ 27.141599] Kernel panic - not syncing: Fatal exception [ 27.147109] Kernel Offset: disabled [ 27.150713] Rebooting in 86400 seconds..