[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] 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: [ 25.976734][ T24] kauditd_printk_skb: 20 callbacks suppressed [ 25.976740][ T24] audit: type=1400 audit(1574827183.728:41): avc: denied { map } for pid=6833 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 '10.128.1.10' (ECDSA) to the list of known hosts. [ 86.935030][ T24] audit: type=1400 audit(1574827244.688:42): avc: denied { map } for pid=6849 comm="syz-executor652" path="/root/syz-executor652112242" dev="sda1" ino=1426 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 [ 93.729175][ T6859] FS-Cache: Duplicate cookie detected [ 93.734634][ T6859] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.743493][ T6859] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.750690][ T6859] FS-Cache: O-key=[2] '3970' [ 93.755262][ T6859] FS-Cache: N-cookie c=000000002cd85668 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.763937][ T6859] FS-Cache: N-cookie d=00000000bce21141 n=0000000045aaeb9b [ 93.771147][ T6859] FS-Cache: N-key=[2] '3970' executing program [ 93.775715][ T6864] FS-Cache: Duplicate cookie detected [ 93.781114][ T6864] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.789976][ T6864] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.797165][ T6864] FS-Cache: O-key=[2] '3970' [ 93.801756][ T6864] FS-Cache: N-cookie c=000000001bdcd538 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.810418][ T6864] FS-Cache: N-cookie d=00000000bce21141 n=0000000054211b22 [ 93.818623][ T6864] FS-Cache: N-key=[2] '3970' [ 93.823224][ T6862] FS-Cache: Duplicate cookie detected [ 93.828613][ T6862] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.837550][ T6862] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.844847][ T6862] FS-Cache: O-key=[2] '3970' [ 93.849408][ T6862] FS-Cache: N-cookie c=00000000768c9cd2 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.858062][ T6862] FS-Cache: N-cookie d=00000000bce21141 n=000000003f9a8be6 [ 93.865248][ T6862] FS-Cache: N-key=[2] '3970' [ 93.869824][ T6860] FS-Cache: Duplicate cookie detected [ 93.875205][ T6860] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.884050][ T6860] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.891225][ T6860] FS-Cache: O-key=[2] '3970' [ 93.895786][ T6860] FS-Cache: N-cookie c=0000000027c45743 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.904445][ T6860] FS-Cache: N-cookie d=00000000bce21141 n=00000000c392f571 [ 93.911621][ T6860] FS-Cache: N-key=[2] '3970' [ 93.916177][ T6863] FS-Cache: Duplicate cookie detected [ 93.921557][ T6863] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.931853][ T6863] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.939011][ T6863] FS-Cache: O-key=[2] '3970' [ 93.943582][ T6863] FS-Cache: N-cookie c=0000000094295538 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.952229][ T6863] FS-Cache: N-cookie d=00000000bce21141 n=00000000550c00c0 [ 93.959388][ T6863] FS-Cache: N-key=[2] '3970' [ 93.963957][ T6865] FS-Cache: Duplicate cookie detected [ 93.969444][ T6865] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 93.978292][ T6865] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 93.985557][ T6865] FS-Cache: O-key=[2] '3970' [ 93.990131][ T6865] FS-Cache: N-cookie c=000000006ba341e8 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 93.998782][ T6865] FS-Cache: N-cookie d=00000000bce21141 n=0000000069abf362 [ 94.005979][ T6865] FS-Cache: N-key=[2] '3970' [ 94.010573][ T6861] FS-Cache: Duplicate cookie detected [ 94.015961][ T6861] FS-Cache: O-cookie c=000000006f93d74f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 94.024823][ T6861] FS-Cache: O-cookie d=00000000bce21141 n=00000000a9f6f625 [ 94.032023][ T6861] FS-Cache: O-key=[2] '3970' [ 94.036591][ T6861] FS-Cache: N-cookie c=000000002a42e702 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 94.045245][ T6861] FS-Cache: N-cookie d=00000000bce21141 n=00000000d783c0ec [ 94.052422][ T6861] FS-Cache: N-key=[2] '3970' [ 100.179531][ T6856] kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881179c9d00 (size 32): comm "syz-executor652", pid 6859, jiffies 4294946639 (age 15.920s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115916980 (size 32): comm "syz-executor652", pid 6860, jiffies 4294946639 (age 15.920s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 6e 65 6c 5f 74 3a 73 30 00 00 00 0000.nel_t:s0... backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00640 (size 32): comm "syz-executor652", pid 6864, jiffies 4294946640 (age 15.910s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00140 (size 32): comm "syz-executor652", pid 6865, jiffies 4294946640 (age 15.910s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881179c9d00 (size 32): comm "syz-executor652", pid 6859, jiffies 4294946639 (age 16.860s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115916980 (size 32): comm "syz-executor652", pid 6860, jiffies 4294946639 (age 16.860s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 6e 65 6c 5f 74 3a 73 30 00 00 00 0000.nel_t:s0... backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00640 (size 32): comm "syz-executor652", pid 6864, jiffies 4294946640 (age 16.850s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00140 (size 32): comm "syz-executor652", pid 6865, jiffies 4294946640 (age 16.850s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881179c9d00 (size 32): comm "syz-executor652", pid 6859, jiffies 4294946639 (age 17.790s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115916980 (size 32): comm "syz-executor652", pid 6860, jiffies 4294946639 (age 17.790s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 6e 65 6c 5f 74 3a 73 30 00 00 00 0000.nel_t:s0... backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00640 (size 32): comm "syz-executor652", pid 6864, jiffies 4294946640 (age 17.780s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888115e00140 (size 32): comm "syz-executor652", pid 6865, jiffies 4294946640 (age 17.780s) hex dump (first 32 bytes): 39 70 00 30 30 30 30 30 30 30 30 30 30 30 30 30 9p.0000000000000 30 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 0000............ backtrace: [<000000000acc8f7b>] __kmalloc_track_caller+0x165/0x300 [<0000000067067fe4>] kmemdup_nul+0x31/0x80 [<0000000018f5165a>] match_strdup+0x21/0x30 [<000000001821e246>] v9fs_session_init+0x29e/0x880 [<00000000954cf8bd>] v9fs_mount+0x5e/0x3c0 [<0000000048314dcf>] legacy_get_tree+0x27/0x80 [<0000000005d0a60f>] vfs_get_tree+0x2d/0xe0 [<000000004104dd17>] do_mount+0x97c/0xc80 [<000000000bbf93be>] ksys_mount+0xab/0x120 [<00000000c948e9f0>] __x64_sys_mount+0x26/0x30 [<000000006454c19c>] do_syscall_64+0x73/0x1f0 [<000000006d499c3a>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 executing program executing program executing program executing program [ 116.394740][ T6870] FS-Cache: Duplicate cookie detected [ 116.400172][ T6870] FS-Cache: O-cookie c=000000007599a54f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 116.409004][ T6870] FS-Cache: O-cookie d=00000000bce21141 n=00000000b4e119c5 [ 116.416895][ T6870] FS-Cache: O-key=[2] '3970' [ 116.421505][ T6870] FS-Cache: N-cookie c=00000000177d397d [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 116.430169][ T6870] FS-Cache: N-cookie d=00000000bce21141 n=00000000dcaa6f2d [ 116.438034][ T6870] FS-Cache: N-key=[2] '3970' [ 116.446343][ T6871] FS-Cache: Duplicate cookie detected [ 116.451759][ T6871] FS-Cache: O-cookie c=000000007599a54f [p=00000000fffe25f0 fl=222 nc=0 na=1] [ 116.460605][ T6871] FS-Cache: O-cookie d=00000000bce21141 n=00000000b4e119c5 [ 116.467781][ T6871] FS-Cache: O-key=[2] '3970' [ 116.472388][ T6871] FS-Cache: N-cookie c=00000000d2db8323 [p=00000000fffe25f0 fl=2 nc=0 na=1] [ 116.481052][ T6871] FS-Cache: N-cookie d=00000000bce21141 n=00000000daf6cef1 [ 116.488234][ T6871] FS-Cache: N-key=[2] '3970' executing program