CVE-2024-58085 tomoyo: don't emit warning in tomoyo_write_control()

In the Linux kernel, the following vulnerability has been resolved: tomoyo: don't emit warning in tomoyowritecontrol syzbot is reporting too large allocation warning at tomoyowritecontrol, for one can write a very very long line without new line character. To fix this warning, I use GFPNOWARN...

CVE-2024-26622

In the Linux kernel, the following vulnerability has been resolved: tomoyo: fix UAF write bug in tomoyowritecontrol Since tomoyowritecontrol updates head-writebuf when write of long lines is requested, we need to fetch head-writebuf after head-iosem is held. Otherwise, concurrent write requests c...