{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64375", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.784Z", "datePublished": "2026-07-25T08:50:26.869Z", "dateUpdated": "2026-07-25T08:50:26.869Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-07-25T08:50:26.869Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nproc: protect ptrace_may_access() with exec_update_lock (FD links)\n\nproc_pid_get_link() and proc_pid_readlink() currently look up the task from\nthe pid once, then do the ptrace access check on that task, then look up\nthe task from the pid a second time to do the actual access.\nThat's racy in several ways.\n\nTo fix it, pass the task to the ->proc_get_link() handler, and instead of\nproc_fd_access_allowed(), introduce a new helper call_proc_get_link() that\nlooks up and locks the task, does the access check, and calls\n->proc_get_link()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/proc/base.c", "fs/proc/fd.c", "fs/proc/internal.h"], "versions": [{"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "6253dfee5afba536bb54fc6fe6c091c3758fafe1", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "65bf0d2b6e914f1448d6a2fde193dcf60936a651", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "83b17872e3166c295c599279fc9562ac3840c638", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "497c6bae5167428596575f20af6613ff5671f383", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "dfd1894cb64cbd8758b461ed713800fe73db4f82", "status": "affected", "versionType": "git"}, {"version": "778c1144771f0064b6f51bee865cceb0d996f2f9", "lessThan": "6255da28d4bb5349fe18e84cb043ccd394eba75d", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/proc/base.c", "fs/proc/fd.c", "fs/proc/internal.h"], "versions": [{"version": "2.6.18", "status": "affected"}, {"version": "0", "lessThan": "2.6.18", "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-rc1", "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": "2.6.18", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.18", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6253dfee5afba536bb54fc6fe6c091c3758fafe1"}, {"url": "https://git.kernel.org/stable/c/65bf0d2b6e914f1448d6a2fde193dcf60936a651"}, {"url": "https://git.kernel.org/stable/c/de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf"}, {"url": "https://git.kernel.org/stable/c/138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2"}, {"url": "https://git.kernel.org/stable/c/83b17872e3166c295c599279fc9562ac3840c638"}, {"url": "https://git.kernel.org/stable/c/497c6bae5167428596575f20af6613ff5671f383"}, {"url": "https://git.kernel.org/stable/c/dfd1894cb64cbd8758b461ed713800fe73db4f82"}, {"url": "https://git.kernel.org/stable/c/6255da28d4bb5349fe18e84cb043ccd394eba75d"}], "title": "proc: protect ptrace_may_access() with exec_update_lock (FD links)", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,6253dfee5afba536bb54fc6fe6c091c3758fafe1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,65bf0d2b6e914f1448d6a2fde193dcf60936a651)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,de497d7aa2fae453a7e7c8f7d3e8682e565e3aaf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,138c692d2b2d63d26f2eb957d0e4fcc5d61f9ff2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,83b17872e3166c295c599279fc9562ac3840c638)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,497c6bae5167428596575f20af6613ff5671f383)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,dfd1894cb64cbd8758b461ed713800fe73db4f82)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[778c1144771f0064b6f51bee865cceb0d996f2f9,6255da28d4bb5349fe18e84cb043ccd394eba75d)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "2.6.18"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.18)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.261,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.4,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T16:15:18.042825+00:00", "updated": "2026-07-25T16:15:18.042857+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}