[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 45.051987][ T25] kauditd_printk_skb: 46 callbacks suppressed [ 45.051994][ T25] audit: type=1400 audit(1570161842.816:67): avc: denied { map } for pid=6812 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. [ 73.688031][ T25] audit: type=1400 audit(1570161871.446:68): avc: denied { map } for pid=6824 comm="syz-executor221" path="/root/syz-executor221470896" dev="sda1" ino=16461 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program executing program executing program executing program executing program executing program [ 80.660972][ T6828] FS-Cache: Duplicate cookie detected [ 80.666726][ T6828] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.675583][ T6828] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.682793][ T6828] FS-Cache: O-key=[2] '3970' [ 80.687388][ T6828] FS-Cache: N-cookie c=00000000e3a5aba0 [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.696129][ T6828] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000fecc07f8 [ 80.703426][ T6828] FS-Cache: N-key=[2] '3970' executing program [ 80.708004][ T6837] FS-Cache: Duplicate cookie detected [ 80.713560][ T6837] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.722714][ T6837] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.729893][ T6837] FS-Cache: O-key=[2] '3970' [ 80.734657][ T6837] FS-Cache: N-cookie c=0000000055b9c9bb [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.743493][ T6837] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000f5371e2f [ 80.750904][ T6837] FS-Cache: N-key=[2] '3970' [ 80.755672][ T6840] FS-Cache: Duplicate cookie detected executing program [ 80.761472][ T6840] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.770354][ T6840] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.777571][ T6840] FS-Cache: O-key=[2] '3970' [ 80.782155][ T6840] FS-Cache: N-cookie c=00000000fbe7aebf [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.790862][ T6840] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000add488a7 [ 80.798237][ T6840] FS-Cache: N-key=[2] '3970' [ 80.802901][ T6839] FS-Cache: Duplicate cookie detected [ 80.808285][ T6839] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.817314][ T6839] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.824505][ T6839] FS-Cache: O-key=[2] '3970' [ 80.829136][ T6839] FS-Cache: N-cookie c=0000000056e4f285 [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.837808][ T6839] FS-Cache: N-cookie d=00000000d297d6f7 n=0000000063e629da [ 80.845084][ T6839] FS-Cache: N-key=[2] '3970' [ 80.849819][ T6838] FS-Cache: Duplicate cookie detected [ 80.855213][ T6838] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.864114][ T6838] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.871391][ T6838] FS-Cache: O-key=[2] '3970' [ 80.876082][ T6838] FS-Cache: N-cookie c=00000000b5a6c4ce [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.884822][ T6838] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000ad1e3197 [ 80.892010][ T6838] FS-Cache: N-key=[2] '3970' [ 80.896616][ T6836] FS-Cache: Duplicate cookie detected [ 80.902107][ T6836] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.911102][ T6836] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.918277][ T6836] FS-Cache: O-key=[2] '3970' [ 80.923147][ T6836] FS-Cache: N-cookie c=00000000cbebe216 [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.932028][ T6836] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000ca753adf [ 80.939201][ T6836] FS-Cache: N-key=[2] '3970' [ 80.944547][ T6835] FS-Cache: Duplicate cookie detected [ 80.949968][ T6835] FS-Cache: O-cookie c=000000001ae02fc8 [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 80.959449][ T6835] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 80.966811][ T6835] FS-Cache: O-key=[2] '3970' [ 80.971644][ T6835] FS-Cache: N-cookie c=000000008ee0fd0a [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 80.981079][ T6835] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000f22bbcd1 [ 80.988397][ T6835] FS-Cache: N-key=[2] '3970' [ 87.182404][ T6829] kmemleak: 6 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888118324b20 (size 32): comm "syz-executor221", pid 6828, jiffies 4294945332 (age 17.990s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 01 00 00 00 03 00 00 00 1f 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122839480 (size 32): comm "syz-executor221", pid 6835, jiffies 4294945332 (age 17.990s) hex dump (first 32 bytes): 39 70 00 80 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d32c0 (size 32): comm "syz-executor221", pid 6836, jiffies 4294945332 (age 17.990s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d34a0 (size 32): comm "syz-executor221", pid 6837, jiffies 4294945333 (age 17.980s) hex dump (first 32 bytes): 39 70 00 00 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888118324b20 (size 32): comm "syz-executor221", pid 6828, jiffies 4294945332 (age 20.150s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 01 00 00 00 03 00 00 00 1f 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122839480 (size 32): comm "syz-executor221", pid 6835, jiffies 4294945332 (age 20.150s) hex dump (first 32 bytes): 39 70 00 80 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d32c0 (size 32): comm "syz-executor221", pid 6836, jiffies 4294945332 (age 20.150s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d34a0 (size 32): comm "syz-executor221", pid 6837, jiffies 4294945333 (age 20.140s) hex dump (first 32 bytes): 39 70 00 00 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888118324b20 (size 32): comm "syz-executor221", pid 6828, jiffies 4294945332 (age 21.250s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 01 00 00 00 03 00 00 00 1f 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122839480 (size 32): comm "syz-executor221", pid 6835, jiffies 4294945332 (age 21.250s) hex dump (first 32 bytes): 39 70 00 80 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d32c0 (size 32): comm "syz-executor221", pid 6836, jiffies 4294945332 (age 21.250s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d34a0 (size 32): comm "syz-executor221", pid 6837, jiffies 4294945333 (age 21.240s) hex dump (first 32 bytes): 39 70 00 00 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888118324b20 (size 32): comm "syz-executor221", pid 6828, jiffies 4294945332 (age 22.400s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 01 00 00 00 03 00 00 00 1f 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888122839480 (size 32): comm "syz-executor221", pid 6835, jiffies 4294945332 (age 22.400s) hex dump (first 32 bytes): 39 70 00 80 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d32c0 (size 32): comm "syz-executor221", pid 6836, jiffies 4294945332 (age 22.400s) hex dump (first 32 bytes): 39 70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881172d34a0 (size 32): comm "syz-executor221", pid 6837, jiffies 4294945333 (age 22.390s) hex dump (first 32 bytes): 39 70 00 00 01 00 00 00 00 00 00 00 00 00 00 00 9p.............. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000fd2168f8>] __kmalloc_track_caller+0x165/0x300 [<00000000407126f6>] kmemdup_nul+0x31/0x80 [<000000006ef09846>] match_strdup+0x21/0x30 [<000000009e48d67f>] v9fs_session_init+0x29e/0x880 [<00000000d32e3e54>] v9fs_mount+0x5e/0x3c0 [<00000000b69684bb>] legacy_get_tree+0x27/0x80 [<00000000efb2afc6>] vfs_get_tree+0x2d/0xe0 [<000000001dff1829>] do_mount+0x95f/0xc60 [<0000000007bf9fa9>] ksys_mount+0xab/0x120 [<00000000842bbda6>] __x64_sys_mount+0x26/0x30 [<0000000004ea2e82>] do_syscall_64+0x73/0x1f0 [<0000000050b4500a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program executing program [ 106.641982][ T6844] FS-Cache: Duplicate cookie detected [ 106.647431][ T6844] FS-Cache: O-cookie c=00000000d33f6a4e [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 106.656358][ T6844] FS-Cache: O-cookie d=00000000d297d6f7 n=00000000388ee8d6 [ 106.663825][ T6844] FS-Cache: O-key=[2] '3970' [ 106.668506][ T6844] FS-Cache: N-cookie c=000000009c86917a [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 106.677291][ T6844] FS-Cache: N-cookie d=00000000d297d6f7 n=0000000050502f15 [ 106.684500][ T6844] FS-Cache: N-key=[2] '3970' executing program [ 106.839165][ T6846] FS-Cache: Duplicate cookie detected [ 106.844604][ T6846] FS-Cache: O-cookie c=00000000d33f6a4e [p=00000000a2a656b1 fl=222 nc=0 na=1] [ 106.853483][ T6846] FS-Cache: O-cookie d=00000000d297d6f7 n=0000000040971031 [ 106.860673][ T6846] FS-Cache: O-key=[2] '3970' [ 106.865475][ T6846] FS-Cache: N-cookie c=000000009c86917a [p=00000000a2a656b1 fl=2 nc=0 na=1] [ 106.874361][ T6846] FS-Cache: N-cookie d=00000000d297d6f7 n=00000000a960033f [ 106.881650][ T6846] FS-Cache: N-key=[2] '3970'