[ 29.140596][ T25] audit: type=1800 audit(1580554092.256:34): pid=7169 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 syzkaller login: [ 33.623530][ T25] kauditd_printk_skb: 6 callbacks suppressed [ 33.623538][ T25] audit: type=1400 audit(1580554096.756:41): avc: denied { map } for pid=7340 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 '10.128.0.33' (ECDSA) to the list of known hosts. [ 43.500759][ T25] audit: type=1400 audit(1580554106.636:42): avc: denied { map } for pid=7354 comm="syz-executor359" path="/root/syz-executor359399990" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 43.528694][ T25] audit: type=1400 audit(1580554106.636:43): avc: denied { integrity } for pid=7354 comm="syz-executor359" lockdown_reason="debugfs access" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=lockdown permissive=1 executing program executing program [ 62.057052][ T7354] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 64.036708][ T7354] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881212d84c0 (size 64): comm "syz-executor359", pid 7355, jiffies 4294942298 (age 13.760s) hex dump (first 32 bytes): 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 90 01 02 00 c9 ff ff 00 00 00 00 00 00 00 00 ................ backtrace: [<0000000053fa9f73>] kmem_cache_alloc_trace+0x145/0x2c0 [<00000000fd2faae5>] snd_pcm_lib_malloc_pages+0x12b/0x200 [<0000000067b5a915>] snd_pcm_hw_params+0x720/0x830 [<00000000abb319a5>] snd_pcm_kernel_ioctl+0xb5/0x170 [<00000000983fdfa1>] snd_pcm_oss_change_params_locked+0x745/0x1140 [<0000000062984e96>] snd_pcm_oss_change_params+0x43/0x80 [<000000004521c441>] snd_pcm_oss_make_ready+0x55/0xc0 [<000000007389b77c>] snd_pcm_oss_sync.isra.0+0xb8/0x310 [<000000005d1ebbc0>] snd_pcm_oss_release+0xef/0x100 [<0000000068034f6b>] __fput+0xed/0x300 [<000000008e75cbfc>] ____fput+0x16/0x20 [<0000000023d998b1>] task_work_run+0x9d/0xc0 [<0000000039c9526c>] do_exit+0x3fa/0xe20 [<0000000030dcd66c>] do_group_exit+0x4b/0xe0 [<000000005c866749>] __x64_sys_exit_group+0x1c/0x20 [<0000000013883faa>] do_syscall_64+0x73/0x220 BUG: memory leak unreferenced object 0xffff88811f43b240 (size 64): comm "syz-executor359", pid 7356, jiffies 4294942890 (age 7.840s) hex dump (first 32 bytes): 07 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 a0 21 02 00 c9 ff ff 00 00 00 00 00 00 00 00 ..!............. backtrace: [<0000000053fa9f73>] kmem_cache_alloc_trace+0x145/0x2c0 [<00000000fd2faae5>] snd_pcm_lib_malloc_pages+0x12b/0x200 [<0000000067b5a915>] snd_pcm_hw_params+0x720/0x830 [<00000000abb319a5>] snd_pcm_kernel_ioctl+0xb5/0x170 [<00000000983fdfa1>] snd_pcm_oss_change_params_locked+0x745/0x1140 [<0000000062984e96>] snd_pcm_oss_change_params+0x43/0x80 [<000000004521c441>] snd_pcm_oss_make_ready+0x55/0xc0 [<000000007389b77c>] snd_pcm_oss_sync.isra.0+0xb8/0x310 [<000000005d1ebbc0>] snd_pcm_oss_release+0xef/0x100 [<0000000068034f6b>] __fput+0xed/0x300 [<000000008e75cbfc>] ____fput+0x16/0x20 [<0000000023d998b1>] task_work_run+0x9d/0xc0 [<0000000039c9526c>] do_exit+0x3fa/0xe20 [<0000000030dcd66c>] do_group_exit+0x4b/0xe0 [<000000005c866749>] __x64_sys_exit_group+0x1c/0x20 [<0000000013883faa>] do_syscall_64+0x73/0x220