CVE-2026-64371

In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with exec_update_lock (part 1) Fix the easy cases where procfs currently calls ptrace_may_access() without exec_update_lock protection, where the fix is to simply add the extra lock or use mm_access(): - do_task_stat(): grab exec_update_lock - proc_pid_wchan(): grab exec_update_lock - proc_map_files_lookup(): use mm_access() instead of get_task_mm() - proc_map_files_readdir(): use mm_access() instead of get_task_mm() - proc_ns_get_link(): grab exec_update_lock - proc_ns_readlink(): grab exec_update_lock

• linux linux kernel (>= 2.6.27.23 < 2.6.28) • linux linux kernel (>= 2.6.29.3 < 2.6.30) • linux linux kernel (>= 2.6.30.1 < 5.10.261) • linux linux kernel (>= 5.11 < 5.15.212) • linux linux kernel (>= 5.16 < 6.1.178) • linux linux kernel (>= 6.2 < 6.6.145) • linux linux kernel (>= 6.7 < 6.12.97) • linux linux kernel (>= 6.13 < 6.18.40) • linux linux kernel (>= 6.19 < 7.1.4) • linux linux kernel 2.6.30