[  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 '10.128.0.246' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   29.538722] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal
[   29.547255] REISERFS (device loop0): using ordered data mode
[   29.553290] reiserfs: using flush barriers
[   29.558375] REISERFS (device loop0): journal params: device loop0, size 512, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30
[   29.574224] REISERFS (device loop0): checking transaction log (loop0)
[   29.615728] REISERFS (device loop0): Using r5 hash to sort names
[   29.622382] REISERFS (device loop0): Created .reiserfs_priv - reserved for xattr storage.
[   29.631681] ==================================================================
[   29.639144] BUG: KASAN: use-after-free in strlen+0x79/0x90
[   29.644759] Read of size 1 at addr ffff88808b4be9cc by task syz-executor261/7951
[   29.652279] 
[   29.653906] CPU: 1 PID: 7951 Comm: syz-executor261 Not tainted 4.14.300-syzkaller #0
[   29.661774] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   29.671100] Call Trace:
[   29.673663]  dump_stack+0x1b2/0x281
[   29.677267]  print_address_description.cold+0x54/0x1d3
[   29.682519]  kasan_report_error.cold+0x8a/0x191
[   29.687160]  ? strlen+0x79/0x90
[   29.690411]  __asan_report_load1_noabort+0x68/0x70
[   29.695341]  ? strlen+0x79/0x90
[   29.698678]  strlen+0x79/0x90
[   29.701844]  search_by_entry_key+0x8b8/0xf50
[   29.706229]  reiserfs_readdir_inode+0x232/0x12a0
[   29.711072]  ? save_trace+0xd6/0x290
[   29.714761]  ? reiserfs_dir_fsync+0x140/0x140
[   29.719235]  ? debug_check_no_obj_freed+0x2c0/0x680
[   29.724225]  ? trace_hardirqs_on+0x10/0x10
[   29.728436]  ? aa_path_link+0x3a0/0x3a0
[   29.732398]  ? __fsnotify_inode_delete+0x20/0x20
[   29.737133]  iterate_dir+0x1a0/0x5e0
[   29.740821]  SyS_getdents64+0x125/0x230
[   29.744776]  ? SyS_getdents+0x240/0x240
[   29.748724]  ? filldir+0x390/0x390
[   29.752250]  ? do_syscall_64+0x4c/0x640
[   29.756220]  ? SyS_getdents+0x240/0x240
[   29.760167]  do_syscall_64+0x1d5/0x640
[   29.764039]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[   29.769216] 
[   29.770816] The buggy address belongs to the page:
[   29.775721] page:ffffea00022d2f80 count:0 mapcount:0 mapping:          (null) index:0x1
[   29.783836] flags: 0xfff00000000000()
[   29.787610] raw: 00fff00000000000 0000000000000000 0000000000000001 00000000ffffffff
[   29.795473] raw: ffffea00022d2f60 ffffea00022d2fe0 0000000000000000 0000000000000000
[   29.803324] page dumped because: kasan: bad access detected
[   29.809005] 
[   29.810603] Memory state around the buggy address:
[   29.815504]  ffff88808b4be880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   29.822837]  ffff88808b4be900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   29.830167] >ffff88808b4be980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   29.837499]                                               ^
[   29.843181]  ffff88808b4bea00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   29.850534]  ffff88808b4bea80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[   29.857864] ==================================================================
[   29.865192] Disabling lock debugging due to kernel taint
[   29.870944] Kernel panic - not syncing: panic_on_warn set ...
[   29.870944] 
[   29.878304] CPU: 1 PID: 7951 Comm: syz-executor261 Tainted: G    B           4.14.300-syzkaller #0
[   29.887384] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[   29.896725] Call Trace:
[   29.899294]  dump_stack+0x1b2/0x281
[   29.902893]  panic+0x1f9/0x42d
[   29.906061]  ? add_taint.cold+0x16/0x16
[   29.910013]  ? ___preempt_schedule+0x16/0x18
[   29.914396]  kasan_end_report+0x43/0x49
[   29.918346]  kasan_report_error.cold+0xa7/0x191
[   29.922991]  ? strlen+0x79/0x90
[   29.926247]  __asan_report_load1_noabort+0x68/0x70
[   29.931147]  ? strlen+0x79/0x90
[   29.934401]  strlen+0x79/0x90
[   29.937482]  search_by_entry_key+0x8b8/0xf50
[   29.941864]  reiserfs_readdir_inode+0x232/0x12a0
[   29.946599]  ? save_trace+0xd6/0x290
[   29.950287]  ? reiserfs_dir_fsync+0x140/0x140
[   29.954758]  ? debug_check_no_obj_freed+0x2c0/0x680
[   29.959747]  ? trace_hardirqs_on+0x10/0x10
[   29.963957]  ? aa_path_link+0x3a0/0x3a0
[   29.967910]  ? __fsnotify_inode_delete+0x20/0x20
[   29.972642]  iterate_dir+0x1a0/0x5e0
[   29.976328]  SyS_getdents64+0x125/0x230
[   29.980272]  ? SyS_getdents+0x240/0x240
[   29.984218]  ? filldir+0x390/0x390
[   29.987730]  ? do_syscall_64+0x4c/0x640
[   29.991675]  ? SyS_getdents+0x240/0x240
[   29.995623]  do_syscall_64+0x1d5/0x640
[   29.999499]  entry_SYSCALL_64_after_hwframe+0x5e/0xd3
[   30.004847] Kernel Offset: disabled
[   30.008455] Rebooting in 86400 seconds..