{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-64371","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-07-19T15:36:31.783Z","datePublished":"2026-07-25T08:50:23.981Z","dateUpdated":"2026-08-17T04:54:21.091Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T04:54:21.091Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nproc: protect ptrace_may_access() with exec_update_lock (part 1)\n\nFix the easy cases where procfs currently calls ptrace_may_access() without\nexec_update_lock protection, where the fix is to simply add the extra lock\nor use mm_access():\n\n - do_task_stat(): grab exec_update_lock\n - proc_pid_wchan(): grab exec_update_lock\n - proc_map_files_lookup(): use mm_access() instead of get_task_mm()\n - proc_map_files_readdir(): use mm_access() instead of get_task_mm()\n - proc_ns_get_link(): grab exec_update_lock\n - proc_ns_readlink(): grab exec_update_lock"}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/proc/array.c","fs/proc/base.c","fs/proc/namespaces.c"],"versions":[{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"ae1e630bcaac739f625822078edbaea98366930d","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"d54f14655fd7d7b293698a8b6918563c4c0465e7","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"7456ae990a9738962b33146916fabca62ae3d4e0","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"4bfe8c481846cee52473a2f7d7b30ee8e6749fc4","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"f9b4b03ccc9c69bf7f7298d4559906ebea7143b3","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"c1cfd63326f5d09999134e9052c353faf738286e","status":"affected","versionType":"git"},{"version":"f83ce3e6b02d5e48b3a43b001390e2b58820389d","lessThan":"6650527444dadc63d84aa939d14ecba4fadb2f69","status":"affected","versionType":"git"},{"version":"6b06d6282100dd5aacf7d45443d651a1995bd9c4","status":"affected","versionType":"git"},{"version":"334ed22054b2ec8477e4409e214fc139cf937ef6","status":"affected","versionType":"git"},{"version":"2.6.27.23","lessThan":"2.6.28","status":"affected","versionType":"semver"},{"version":"2.6.29.3","lessThan":"2.6.30","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/proc/array.c","fs/proc/base.c","fs/proc/namespaces.c"],"versions":[{"version":"2.6.30","status":"affected"},{"version":"0","lessThan":"2.6.30","status":"unaffected","versionType":"semver"},{"version":"5.10.261","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.212","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.178","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.145","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.4","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.10.261"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"5.15.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"7.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.30","versionEndExcluding":"7.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.27.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.29.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d"},{"url":"https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7"},{"url":"https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9"},{"url":"https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0"},{"url":"https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4"},{"url":"https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3"},{"url":"https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e"},{"url":"https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69"}],"title":"proc: protect ptrace_may_access() with exec_update_lock (part 1)","x_generator":{"engine":"bippy-1.2.0"}}}}