audit: type=1400 audit(2000000116.120:15963): avc:  denied  { map } for  pid=17471 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN NOPTI
Modules linked in:
CPU: 0 PID: 17481 Comm: syz-executor2 Not tainted 4.14.74+ #17
task: ffff88019f05de00 task.stack: ffff8801a2738000
RIP: 0010:reset_buffer_flags+0x21/0x150 drivers/tty/n_tty.c:323
RSP: 0018:ffff8801a273f8e0 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000005af1
RDX: 000000000000044c RSI: ffffc90005bac000 RDI: 0000000000002260
RBP: ffff8801c39ad500 R08: 0000000000006bd5 R09: ffffffff912fa548
R10: ffff88019f05e680 R11: 0000000000000001 R12: ffff8801c39ad738
R13: ffff8801a273f938 R14: ffff8801d64d3380 R15: 0000000000000007
FS:  00007fb5ad3c2700(0000) GS:ffff8801db800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000013675c0 CR3: 00000001c0b32001 CR4: 00000000001606b0
DR0: 00000000200001c0 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 n_tty_flush_buffer+0x49/0xeb drivers/tty/n_tty.c:361
 set_termios+0x259/0x440 drivers/tty/tty_ioctl.c:403
 tty_mode_ioctl+0x6ad/0x920 drivers/tty/tty_ioctl.c:776
 n_tty_ioctl_helper+0x3f/0x350 drivers/tty/tty_ioctl.c:939
 n_tty_ioctl+0x43/0x2e0 drivers/tty/n_tty.c:2452
 tty_ioctl+0x551/0x13e0 drivers/tty/tty_io.c:2654
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x1a0/0x1030 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7e/0xb0 fs/ioctl.c:692
 do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x457579
RSP: 002b:00007fb5ad3c1c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457579
RDX: 0000000020000140 RSI: 0000000000005408 RDI: 0000000000000004
RBP: 000000000072c180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb5ad3c26d4
R13: 00000000004c0d8f R14: 00000000004d1788 R15: 00000000ffffffff
Code: 41 ff 5b 5d e9 31 bb 5e ff 90 53 48 89 fb e8 27 bb 5e ff 48 8d bb 60 22 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 0f 01 00 00 48 c7 83 60 22 00 00 00 00 00 00 
RIP: reset_buffer_flags+0x21/0x150 drivers/tty/n_tty.c:323 RSP: ffff8801a273f8e0
---[ end trace e31a218035991ca9 ]---