syzkaller login: [ 27.355586][ T24] audit: type=1400 audit(1564521286.314:35): avc: denied { map } for pid=6903 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 [ 162.371037][ T24] audit: type=1400 audit(1564521421.334:36): avc: denied { map } for pid=6915 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.15.220' (ECDSA) to the list of known hosts. [ 472.021567][ T24] audit: type=1400 audit(1564521730.984:37): avc: denied { map } for pid=6922 comm="syz-executor455" path="/root/syz-executor455416176" 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 [ 478.697505][ T6923] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 478.697505][ T6923] program syz-executor455 not setting count and/or reply_len properly executing program [ 484.413973][ T6924] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 484.413973][ T6924] program syz-executor455 not setting count and/or reply_len properly executing program [ 490.186533][ T6925] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 490.186533][ T6925] program syz-executor455 not setting count and/or reply_len properly executing program [ 496.014227][ T6926] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 496.014227][ T6926] program syz-executor455 not setting count and/or reply_len properly executing program [ 501.812973][ T6927] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 501.812973][ T6927] program syz-executor455 not setting count and/or reply_len properly executing program [ 507.508725][ T6928] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 507.508725][ T6928] program syz-executor455 not setting count and/or reply_len properly executing program [ 513.203707][ T6929] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 513.203707][ T6929] program syz-executor455 not setting count and/or reply_len properly executing program [ 518.972027][ T6930] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 518.972027][ T6930] program syz-executor455 not setting count and/or reply_len properly executing program [ 524.671305][ T6931] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 524.671305][ T6931] program syz-executor455 not setting count and/or reply_len properly executing program [ 530.366089][ T6932] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 530.366089][ T6932] program syz-executor455 not setting count and/or reply_len properly executing program [ 536.155385][ T6933] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 536.155385][ T6933] program syz-executor455 not setting count and/or reply_len properly executing program [ 541.836525][ T6934] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 541.836525][ T6934] program syz-executor455 not setting count and/or reply_len properly executing program [ 547.521920][ T6935] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 547.521920][ T6935] program syz-executor455 not setting count and/or reply_len properly executing program [ 553.202914][ T6936] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 553.202914][ T6936] program syz-executor455 not setting count and/or reply_len properly executing program [ 558.919453][ T6937] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 558.919453][ T6937] program syz-executor455 not setting count and/or reply_len properly executing program [ 564.597332][ T6938] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 564.597332][ T6938] program syz-executor455 not setting count and/or reply_len properly executing program [ 570.272630][ T6939] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 570.272630][ T6939] program syz-executor455 not setting count and/or reply_len properly executing program [ 575.981317][ T6940] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 575.981317][ T6940] program syz-executor455 not setting count and/or reply_len properly executing program [ 581.928027][ T6941] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 581.928027][ T6941] program syz-executor455 not setting count and/or reply_len properly executing program [ 587.629087][ T6942] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 587.629087][ T6942] program syz-executor455 not setting count and/or reply_len properly executing program [ 593.327901][ T6943] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 593.327901][ T6943] program syz-executor455 not setting count and/or reply_len properly executing program [ 599.006700][ T6944] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 599.006700][ T6944] program syz-executor455 not setting count and/or reply_len properly executing program [ 604.691799][ T6945] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 604.691799][ T6945] program syz-executor455 not setting count and/or reply_len properly executing program [ 610.370364][ T6946] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 610.370364][ T6946] program syz-executor455 not setting count and/or reply_len properly executing program [ 616.136363][ T6947] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 616.136363][ T6947] program syz-executor455 not setting count and/or reply_len properly executing program [ 622.104748][ T6948] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 622.104748][ T6948] program syz-executor455 not setting count and/or reply_len properly executing program [ 628.050540][ T6949] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 628.050540][ T6949] program syz-executor455 not setting count and/or reply_len properly executing program [ 633.818189][ T6950] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 633.818189][ T6950] program syz-executor455 not setting count and/or reply_len properly executing program [ 639.519620][ T6951] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 639.519620][ T6951] program syz-executor455 not setting count and/or reply_len properly executing program [ 645.213091][ T6952] sg_write: data in/out 327644/56 bytes for SCSI command 0x0-- guessing data in; [ 645.213091][ T6952] program syz-executor455 not setting count and/or reply_len properly [ 646.079733][ T6922] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811937d800 (size 2048): comm "syz-executor455", pid 6924, jiffies 4294985718 (age 168.490s) 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: [<00000000e6798fd8>] __kmalloc+0x169/0x300 [<00000000a68aec59>] bio_alloc_bioset+0x1b8/0x2c0 [<00000000bf01f7b4>] bio_copy_user_iov+0x112/0x4b0 [<0000000068bc0de1>] blk_rq_map_user_iov+0xc6/0x2b0 [<0000000059c10c31>] blk_rq_map_user+0x71/0xb0 [<000000004420be9a>] sg_common_write.isra.0+0x619/0xa10 [<000000006d7022ff>] sg_write.part.0+0x325/0x570 [<0000000015b7ad78>] sg_write+0x44/0x64 [<000000007709985c>] __vfs_write+0x43/0xa0 [<00000000f60147df>] vfs_write+0xee/0x210 [<00000000dac82000>] ksys_write+0x7c/0x130 [<00000000df2979c8>] __x64_sys_write+0x1e/0x30 [<00000000b8baff0b>] do_syscall_64+0x76/0x1a0 [<00000000085eb524>] entry_SYSCALL_64_after_hwframe+0x44/0xa9