{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-38060", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38060", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-06-18T09:33:39.610Z", "updatedAt": "2026-10-21T12:36:41.334Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "bpf: copy_verifier_state() should copy 'loop_entry' field", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: copy_verifier_state() should copy 'loop_entry' field\n\nThe bpf_verifier_state.loop_entry state should be copied by\ncopy_verifier_state(). Otherwise, .loop_entry values from unrelated\nstates would poison env->cur_state.\n\nAdditionally, env->stack should not contain any states with\n.loop_entry != NULL. The states in env->stack are yet to be verified,\nwhile .loop_entry is set for states that reached an equivalent state.\nThis means that env->cur_state->loop_entry should always be NULL after\npop_stack().\n\nSee the selftest in the next commit for an example of the program that\nis not safe yet is accepted by verifier w/o this fix.\n\nThis change has some verification performance impact for selftests:\n\nFile Program Insns (A) Insns (B) Insns (DIFF) States (A) States (B) States (DIFF)\n---------------------------------- ---------------------------- --------- --------- -------------- ---------- ---------- -------------\narena_htab.bpf.o arena_htab_llvm 717 426 -291 (-40.59%) 57 37 -20 (-35.09%)\narena_htab_asm.bpf.o arena_htab_asm 597 445 -152 (-25.46%) 47 37 -10 (-21.28%)\narena_list.bpf.o arena_list_del 309 279 -30 (-9.71%) 23 14 -9 (-39.13%)\niters.bpf.o iter_subprog_check_stacksafe 155 141 -14 (-9.03%) 15 14 -1 (-6.67%)\niters.bpf.o iter_subprog_iters 1094 1003 -91 (-8.32%) 88 83 -5 (-5.68%)\niters.bpf.o loop_state_deps2 479 725 +246 (+51.36%) 46 63 +17 (+36.96%)\nkmem_cache_iter.bpf.o open_coded_iter 63 59 -4 (-6.35%) 7 6 -1 (-14.29%)\nverifier_bits_iter.bpf.o max_words 92 84 -8 (-8.70%) 8 7 -1 (-12.50%)\nverifier_iterating_callbacks.bpf.o cond_break2 113 107 -6 (-5.31%) 12 12 +0 (+0.00%)\n\nAnd significant negative impact for sched_ext:\n\nFile Program Insns (A) Insns (B) Insns (DIFF) States (A) States (B) States (DIFF)\n----------------- ---------------------- --------- --------- -------------------- ---------- ---------- ------------------\nbpf.bpf.o lavd_init 7039 14723 +7684 (+109.16%) 490 1139 +649 (+132.45%)\nbpf.bpf.o layered_dispatch 11485 10548 -937 (-8.16%) 848 762 -86 (-10.14%)\nbpf.bpf.o layered_dump 7422 1000001 +992579 (+13373.47%) 681 31178 +30497 (+4478.27%)\nbpf.bpf.o layered_enqueue 16854 71127 +54273 (+322.02%) 1611 6450 +4839 (+300.37%)\nbpf.bpf.o p2dq_dispatch 665 791 +126 (+18.95%) 68 78 +10 (+14.71%)\nbpf.bpf.o p2dq_init 2343 2980 +637 (+27.19%) 201 237 +36 (+17.91%)\nbpf.bpf.o refresh_layer_cpumasks 16487 674760 +658273 (+3992.68%) 1770 65370 +63600 (+3593.22%)\nbpf.bpf.o rusty_select_cpu 1937 40872 +38935 (+2010.07%) 177 3210 +3033 (+1713.56%)\nscx_central.bpf.o central_dispatch 636 2687 +2051 (+322.48%) 63 227 +164 (+260.32%)\nscx_nest.bpf.o nest_init 636 815 +179 (+28.14%) 60 73 +13 (+21.67%)\nscx_qmap.bpf.o qmap_dispatch \n---truncated---", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "c8f6d285825f61d619c4c2509bfd75eb366db900", "status": "affected", "versionType": "git", "lessThan": "b7867e55cbcbaed8498b6b96855371eb9afebdc7" }, { "version": "2a0992829ea3864939d917a5c7b48be6629c6217", "status": "affected", "versionType": "git", "lessThan": "46ba5757a7a4714e7d3f68cfe118208822cb3d78" }, { "version": "2a0992829ea3864939d917a5c7b48be6629c6217", "status": "affected", "versionType": "git", "lessThan": "8b4afd89fa75f738a80ca849126fd3cad77bcbf1" }, { "version": "2a0992829ea3864939d917a5c7b48be6629c6217", "status": "affected", "versionType": "git", "lessThan": "bbbc02b7445ebfda13e4847f4f1413c6480a85a9" }, { "version": "6.6.15", "status": "affected", "versionType": "semver", "lessThan": "6.6.160" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.7", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.7" }, { "version": "6.6.160", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.31", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.14.9", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.14.*" }, { "version": "6.15", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }