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CVE-2026-64371 In the Linux kernel, the following vulnerability has been resolved: proc: protect ptrace_may_access() with…

Description

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

Affected products and versions

Product Affected versions Fixed in
Linux 7.2 earliest → < 7.2 7.2
Linux 7.1 earliest → < 7.1.4 7.1.4
Linux 6.18 earliest → < 6.18.40 6.18.40
Linux 6.12 earliest → < 6.12.97 6.12.97
Linux 6.6 earliest → < 6.6.145 6.6.145
Linux 6.1 earliest → < 6.1.178 6.1.178
Linux 5.15 earliest → < 5.15.212 5.15.212
Linux 5.10 earliest → < 5.10.261 5.10.261
Linux 2.6.30 No fix stated
Show the 3 other branches
Product Affected versions Fixed in
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 3.1 3.1.7 → latest No fix stated

References

Timeline

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