In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference. NOTE: this vulnerability was introduced as a side effect of the CVE-2021-33574 fix. CREATE(Triage):(User=admin) CVE-2021-38604 (https://nvd.nist.gov/vuln/detail/CVE-2021-38604)
