[....] 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: [ 27.693740][ T24] kauditd_printk_skb: 18 callbacks suppressed [ 27.693746][ T24] audit: type=1400 audit(1566131288.117:35): avc: denied { map } for pid=6876 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 '10.128.0.75' (ECDSA) to the list of known hosts. [ 690.643630][ T24] audit: type=1400 audit(1566131951.067:36): avc: denied { map } for pid=6892 comm="syz-executor138" path="/root/syz-executor138387555" 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 [ 697.602901][ T6893] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 697.602901][ T6893] program syz-executor138 not setting count and/or reply_len properly executing program [ 702.644275][ T6894] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 702.644275][ T6894] program syz-executor138 not setting count and/or reply_len properly executing program [ 708.547684][ T6895] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 708.547684][ T6895] program syz-executor138 not setting count and/or reply_len properly executing program [ 714.447768][ T6896] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 714.447768][ T6896] program syz-executor138 not setting count and/or reply_len properly executing program [ 720.559670][ T6897] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 720.559670][ T6897] program syz-executor138 not setting count and/or reply_len properly executing program [ 726.473845][ T6898] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 726.473845][ T6898] program syz-executor138 not setting count and/or reply_len properly executing program [ 732.328218][ T6899] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 732.328218][ T6899] program syz-executor138 not setting count and/or reply_len properly executing program [ 738.208409][ T6900] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 738.208409][ T6900] program syz-executor138 not setting count and/or reply_len properly executing program [ 744.304757][ T6901] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 744.304757][ T6901] program syz-executor138 not setting count and/or reply_len properly executing program [ 750.303910][ T6902] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 750.303910][ T6902] program syz-executor138 not setting count and/or reply_len properly executing program [ 756.308689][ T6903] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 756.308689][ T6903] program syz-executor138 not setting count and/or reply_len properly executing program [ 762.340712][ T6904] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 762.340712][ T6904] program syz-executor138 not setting count and/or reply_len properly executing program [ 768.369512][ T6905] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 768.369512][ T6905] program syz-executor138 not setting count and/or reply_len properly executing program [ 774.239242][ T6906] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 774.239242][ T6906] program syz-executor138 not setting count and/or reply_len properly executing program [ 780.059736][ T6907] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 780.059736][ T6907] program syz-executor138 not setting count and/or reply_len properly executing program [ 785.922554][ T6908] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 785.922554][ T6908] program syz-executor138 not setting count and/or reply_len properly executing program [ 791.792941][ T6909] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 791.792941][ T6909] program syz-executor138 not setting count and/or reply_len properly executing program [ 797.665775][ T6910] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 797.665775][ T6910] program syz-executor138 not setting count and/or reply_len properly executing program [ 803.613495][ T6911] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 803.613495][ T6911] program syz-executor138 not setting count and/or reply_len properly executing program [ 809.557496][ T6912] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 809.557496][ T6912] program syz-executor138 not setting count and/or reply_len properly executing program [ 815.383147][ T6913] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 815.383147][ T6913] program syz-executor138 not setting count and/or reply_len properly executing program [ 821.340817][ T6914] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 821.340817][ T6914] program syz-executor138 not setting count and/or reply_len properly executing program [ 827.315821][ T6915] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 827.315821][ T6915] program syz-executor138 not setting count and/or reply_len properly executing program [ 833.215398][ T6916] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 833.215398][ T6916] program syz-executor138 not setting count and/or reply_len properly executing program [ 839.251295][ T6917] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 839.251295][ T6917] program syz-executor138 not setting count and/or reply_len properly executing program [ 845.182881][ T6918] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 845.182881][ T6918] program syz-executor138 not setting count and/or reply_len properly executing program [ 851.047095][ T6919] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 851.047095][ T6919] program syz-executor138 not setting count and/or reply_len properly executing program [ 856.920614][ T6920] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 856.920614][ T6920] program syz-executor138 not setting count and/or reply_len properly executing program [ 862.773181][ T6921] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 862.773181][ T6921] program syz-executor138 not setting count and/or reply_len properly executing program [ 868.601635][ T6922] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 868.601635][ T6922] program syz-executor138 not setting count and/or reply_len properly executing program [ 874.460328][ T6923] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 874.460328][ T6923] program syz-executor138 not setting count and/or reply_len properly executing program [ 880.432393][ T6924] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 880.432393][ T6924] program syz-executor138 not setting count and/or reply_len properly executing program [ 886.284242][ T6925] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 886.284242][ T6925] program syz-executor138 not setting count and/or reply_len properly executing program [ 892.163104][ T6926] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 892.163104][ T6926] program syz-executor138 not setting count and/or reply_len properly executing program [ 898.044857][ T6927] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 898.044857][ T6927] program syz-executor138 not setting count and/or reply_len properly executing program [ 904.096149][ T6928] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 904.096149][ T6928] program syz-executor138 not setting count and/or reply_len properly executing program [ 910.076358][ T6929] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 910.076358][ T6929] program syz-executor138 not setting count and/or reply_len properly executing program [ 915.934986][ T6930] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 915.934986][ T6930] program syz-executor138 not setting count and/or reply_len properly executing program [ 921.916057][ T6931] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 921.916057][ T6931] program syz-executor138 not setting count and/or reply_len properly executing program [ 927.791271][ T6932] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 927.791271][ T6932] program syz-executor138 not setting count and/or reply_len properly executing program [ 933.879365][ T6933] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 933.879365][ T6933] program syz-executor138 not setting count and/or reply_len properly executing program [ 939.862544][ T6934] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 939.862544][ T6934] program syz-executor138 not setting count and/or reply_len properly executing program [ 945.715433][ T6935] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 945.715433][ T6935] program syz-executor138 not setting count and/or reply_len properly executing program [ 951.545312][ T6936] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 951.545312][ T6936] program syz-executor138 not setting count and/or reply_len properly executing program [ 957.363135][ T6937] sg_write: data in/out 298234/24 bytes for SCSI command 0xff-- guessing data in; [ 957.363135][ T6937] program syz-executor138 not setting count and/or reply_len properly [ 963.088871][ T6892] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888123bc0800 (size 2048): comm "syz-executor138", pid 6895, jiffies 4295008131 (age 256.620s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 20 00 00 00 80 00 00 00 00 00 00 00 00 00 00 00 ............... backtrace: [<0000000001074cef>] __kmalloc+0x169/0x300 [<00000000bb866f56>] bio_alloc_bioset+0x1b8/0x2c0 [<00000000d90288e9>] bio_copy_user_iov+0x112/0x4b0 [<00000000b64bd35d>] blk_rq_map_user_iov+0xc6/0x2b0 [<0000000028c834fd>] blk_rq_map_user+0x71/0xb0 [<000000006614b0fb>] sg_common_write.isra.0+0x619/0xa10 [<00000000906f57d1>] sg_write.part.0+0x325/0x570 [<00000000b9248946>] sg_write+0x44/0x64 [<0000000084ef23f6>] __vfs_write+0x43/0xa0 [<000000008c9ad3c3>] vfs_write+0xee/0x210 [<00000000f289dca3>] ksys_write+0x7c/0x130 [<00000000408e4570>] __x64_sys_write+0x1e/0x30 [<00000000b1322188>] do_syscall_64+0x76/0x1a0 [<00000000ef72e0f7>] entry_SYSCALL_64_after_hwframe+0x44/0xa9