CVE-2026-64371
N/A
N/A
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < ae1e630bcaac739f625822078edbaea98366930d | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < d54f14655fd7d7b293698a8b6918563c4c0465e7 | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9 | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < 7456ae990a9738962b33146916fabca62ae3d4e0 | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4 | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < f9b4b03ccc9c69bf7f7298d4559906ebea7143b3 | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < c1cfd63326f5d09999134e9052c353faf738286e | affected |
| Linux | Linux | f83ce3e6b02d5e48b3a43b001390e2b58820389d < 6650527444dadc63d84aa939d14ecba4fadb2f69 | affected |
| Linux | Linux | 6b06d6282100dd5aacf7d45443d651a1995bd9c4 | affected |
| Linux | Linux | 334ed22054b2ec8477e4409e214fc139cf937ef6 | affected |
| Linux | Linux | 2.6.27.23 < 2.6.28 | affected |
| Linux | Linux | 2.6.29.3 < 2.6.30 | affected |
| Linux | Linux | 2.6.30 | affected |
| Linux | Linux | 0 < 2.6.30 | unaffected |
| Linux | Linux | 5.10.261 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.212 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.178 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.145 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.97 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.40 <= 6.18.* | unaffected |
| Linux | Linux | 7.1.4 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d
- https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7
- https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9
- https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0
- https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4
- https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3
- https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e
- https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69
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