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CVE-2026-64371

proc: protect ptrace_may_access() with exec_update_lock (part 1) PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected f83ce3e6b02d5e48b3a43b001390e2b58820389d before ae1e630bcaac739f625822078edbaea98366930d; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before d54f14655fd7d7b293698a8b6918563c4c0465e7; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before 7456ae990a9738962b33146916fabca62ae3d4e0; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before f9b4b03ccc9c69bf7f7298d4559906ebea7143b3; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before c1cfd63326f5d09999134e9052c353faf738286e; affected f83ce3e6b02d5e48b3a43b001390e2b58820389d before 6650527444dadc63d84aa939d14ecba4fadb2f69; affected 6b06d6282100dd5aacf7d45443d651a1995bd9c4; affected 334ed22054b2ec8477e4409e214fc139cf937ef6; affected 2.6.27.23 before 2.6.28; affected 2.6.29.3 before 2.6.30
Linux / Linuxaffected 2.6.30; unaffected 0 before 2.6.30; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

siemens-SADP

No English description supplied.