[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 27.375324][ T25] kauditd_printk_skb: 42 callbacks suppressed [ 27.375331][ T25] audit: type=1400 audit(1570549298.481:63): avc: denied { map } for pid=6857 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 '10.128.0.245' (ECDSA) to the list of known hosts. [ 33.348748][ T25] audit: type=1400 audit(1570549304.461:64): avc: denied { map } for pid=6871 comm="syz-executor512" path="/root/syz-executor512190906" dev="sda1" ino=16239 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 executing program executing program [ 40.062467][ T6883] FS-Cache: Duplicate cookie detected [ 40.068184][ T6883] FS-Cache: O-cookie c=00000000b4c8f93a [p=0000000074b9c251 fl=222 nc=0 na=1] [ 40.070148][ T6889] FS-Cache: Duplicate cookie detected [ 40.077031][ T6883] FS-Cache: O-cookie d=000000006e508701 n=00000000533c5746 [ 40.077036][ T6883] FS-Cache: O-key=[10] '34323934393431323730' [ 40.082390][ T6889] FS-Cache: O-cookie c=0000000065d22f5b [p=0000000074b9c251 fl=222 nc=0 na=1] [ 40.089557][ T6883] FS-Cache: N-cookie c=00000000dd2ec32f [p=0000000074b9c251 fl=2 nc=0 na=1] [ 40.089562][ T6883] FS-Cache: N-cookie d=000000006e508701 n=00000000cf9023ec [ 40.095687][ T6889] FS-Cache: O-cookie d=000000006e508701 n=000000008f1794d4 [ 40.104500][ T6883] FS-Cache: N-key=[10] '34323934393431323730' [ 40.112451][ T6886] FS-Cache: Duplicate cookie detected [ 40.113235][ T6889] FS-Cache: O-key=[10] '34323934393431323731' [ 40.120595][ T6886] FS-Cache: O-cookie c=0000000030807db4 [p=0000000074b9c251 fl=222 nc=0 na=1] [ 40.127843][ T6889] FS-Cache: N-cookie c=00000000a23228e3 [p=0000000074b9c251 fl=2 nc=0 na=1] [ 40.127848][ T6889] FS-Cache: N-cookie d=000000006e508701 n=00000000755686cf [ 40.133882][ T6886] FS-Cache: O-cookie d=000000006e508701 n=0000000028fbd1e2 [ 40.139238][ T6889] FS-Cache: N-key=[10] '34323934393431323731' [ 40.145287][ T6886] FS-Cache: O-key=[10] '34323934393431323735' [ 40.162828][ T6884] FS-Cache: Duplicate cookie detected [ 40.169977][ T6886] FS-Cache: N-cookie c=000000005282cf4e [p=0000000074b9c251 fl=2 nc=0 na=1] [ 40.169980][ T6886] FS-Cache: N-cookie d=000000006e508701 n=000000001fe15668 [ 40.169982][ T6886] FS-Cache: N-key=[10] '34323934393431323735' [ 40.177174][ T6884] FS-Cache: O-cookie c=00000000b4c8f93a [p=0000000074b9c251 fl=222 nc=0 na=1] [ 40.226263][ T6884] FS-Cache: O-cookie d=000000006e508701 n=00000000533c5746 [ 40.233710][ T6884] FS-Cache: O-key=[10] '34323934393431323730' [ 40.239797][ T6884] FS-Cache: N-cookie c=000000005a61fc06 [p=0000000074b9c251 fl=2 nc=0 na=1] [ 40.248593][ T6884] FS-Cache: N-cookie d=000000006e508701 n=000000002766aaa4 [ 40.255779][ T6884] FS-Cache: N-key=[10] '34323934393431323730' [ 46.108175][ T6879] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811bd3e5a0 (size 32): comm "syz-executor512", pid 6889, jiffies 4294941271 (age 16.760s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 31 00 00 20 00 00 00 4294941271.. ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115f33ea0 (size 32): comm "syz-executor512", pid 6886, jiffies 4294941275 (age 16.720s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 35 00 30 30 30 30 30 4294941275.00000 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811bd3e5a0 (size 32): comm "syz-executor512", pid 6889, jiffies 4294941271 (age 16.820s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 31 00 00 20 00 00 00 4294941271.. ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115f33ea0 (size 32): comm "syz-executor512", pid 6886, jiffies 4294941275 (age 16.780s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 35 00 30 30 30 30 30 4294941275.00000 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811bd3e5a0 (size 32): comm "syz-executor512", pid 6889, jiffies 4294941271 (age 17.700s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 31 00 00 20 00 00 00 4294941271.. ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115f33ea0 (size 32): comm "syz-executor512", pid 6886, jiffies 4294941275 (age 17.660s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 35 00 30 30 30 30 30 4294941275.00000 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811bd3e5a0 (size 32): comm "syz-executor512", pid 6889, jiffies 4294941271 (age 17.750s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 31 00 00 20 00 00 00 4294941271.. ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115f33ea0 (size 32): comm "syz-executor512", pid 6886, jiffies 4294941275 (age 17.710s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 35 00 30 30 30 30 30 4294941275.00000 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811bd3e5a0 (size 32): comm "syz-executor512", pid 6889, jiffies 4294941271 (age 19.470s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 31 00 00 20 00 00 00 4294941271.. ... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115f33ea0 (size 32): comm "syz-executor512", pid 6886, jiffies 4294941275 (age 19.430s) hex dump (first 32 bytes): 34 32 39 34 39 34 31 32 37 35 00 30 30 30 30 30 4294941275.00000 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00.............. backtrace: [<000000006033d232>] kmem_cache_alloc_trace+0x145/0x2c0 [<000000006bae1d8c>] v9fs_cache_session_get_cookie+0xa6/0x110 [<0000000076a9fc9b>] v9fs_session_init+0x5c3/0x880 [<0000000042faa6de>] v9fs_mount+0x5e/0x3c0 [<000000005df41aa5>] legacy_get_tree+0x27/0x80 [<000000002bdb03a9>] vfs_get_tree+0x2d/0xe0 [<000000009c069e62>] do_mount+0x95f/0xc60 [<000000009b935741>] ksys_mount+0xab/0x120 [<00000000c9161545>] __x64_sys_mount+0x26/0x30 [<00000000ebeba22c>] do_syscall_64+0x73/0x1f0 [<0000000073f673bc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program executing program