kernel: Fix of 8 CVEs

rtmutex: Use waiter::task instead of current in removewaiter CVE-2026-43499 - xfs: fix freemap adjustments when adding xattrs to leaf blocks CVE-2026-43158 - xfs: delete attr leaf freemap entries when empty CVE-2026-43158 - ALSA: 6fire: fix use-after-free on disconnect CVE-2026-31581 - brcmfmac:...

Linux kernel OOPS null pointer reference vulnerability

Linux kernel is the kernel used by Linux, the open source operating system released by the Linux Foundation in the United States. A security vulnerability exists in the file s/xfs/libxfs/xfsattrleaf.c in Linux kernel version 4.17.3 and earlier. An attacker can exploit this vulnerability to cause...