[ 25.799620][ T22] audit: type=1800 audit(1574596366.827:33): pid=7005 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 25.825554][ T22] audit: type=1800 audit(1574596366.827:34): pid=7005 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] 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 Warning: Permanently added '10.128.0.31' (ECDSA) to the list of known hosts. syzkaller login: [ 45.497526][ T22] kauditd_printk_skb: 7 callbacks suppressed [ 45.497533][ T22] audit: type=1400 audit(1574596386.527:42): avc: denied { map } for pid=7191 comm="syz-executor230" path="/root/syz-executor230121810" dev="sda1" ino=2339 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 [ 64.047985][ T7191] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811824c580 (size 32): comm "syz-executor230", pid 7193, jiffies 4294943049 (age 12.480s) hex dump (first 32 bytes): 00 64 6d 61 62 75 66 3a 00 00 00 00 00 00 00 00 .dmabuf:........ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000ebdaaa91>] __kmalloc_track_caller+0x165/0x300 [<0000000038191714>] memdup_user+0x26/0xa0 [<00000000c5c02801>] strndup_user+0x62/0x80 [<000000006fa7784e>] dma_buf_ioctl+0x60/0x1e0 [<000000001b9fa692>] do_vfs_ioctl+0x62a/0x810 [<0000000035bab0c5>] ksys_ioctl+0x86/0xb0 [<000000005d6464a3>] __x64_sys_ioctl+0x1e/0x30 [<00000000d876a62e>] do_syscall_64+0x73/0x1f0 [<000000003984b1ff>] entry_SYSCALL_64_after_hwframe+0x44/0xa9