CVE-2026-64507

{"id": "CVE-2026-64507", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "25dbcd31781e2bc3cd63d873af1fcd06f863a126", "versionType": "git"}, {"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "cb27f3bf915cc0f20fc0c48da9059304e39ebd35", "versionType": "git"}, {"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "9354248fc1c33a844ca1872761f6668b393e8c37", "versionType": "git"}, {"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1", "versionType": "git"}, {"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "52440e15d9628f8f239373c0f2e5e8f92feea2df", "versionType": "git"}, {"status": "affected", "version": "57631054fae6dcc9c892ae6310b58bbb6f6e5048", "lessThan": "a3af84b0fa00ead01fcd0e28b5d773ff25990a0d", "versionType": "git"}], "programFiles": ["arch/x86/include/asm/nospec-branch.h", "arch/x86/kernel/cpu/bugs.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.18"}, {"status": "unaffected", "version": "0", "lessThan": "5.18", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.183", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.145", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.97", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.39", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.1.4", "versionType": "semver", "lessThanOrEqual": "7.1.*"}, {"status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["arch/x86/include/asm/nospec-branch.h", "arch/x86/kernel/cpu/bugs.c"], "defaultStatus": "affected"}]}], "published": "2026-07-25T10:17:36.810", "references": [{"url": "https://git.kernel.org/stable/c/25dbcd31781e2bc3cd63d873af1fcd06f863a126", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/52440e15d9628f8f239373c0f2e5e8f92feea2df", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8a4c8af9ae67eb072d90d1b339f14d27a82bd2a1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9354248fc1c33a844ca1872761f6668b393e8c37", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/a3af84b0fa00ead01fcd0e28b5d773ff25990a0d", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/cb27f3bf915cc0f20fc0c48da9059304e39ebd35", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/bugs: Enable IBPB flush on BPF JIT allocation\n\nEnable hardening against JIT spraying when Spectre-v2 mitigations are in\nuse. Specifically, issue an IBPB flush on BPF JIT memory reuse. Skip\nenabling the IBPB flush if the BPF dispatcher is already using a retpoline\nsequence.\n\nThis hardening applies only when BPF-JIT is in use. Guard the enabling\nunder CONFIG_BPF_JIT so that bugs.c still builds with CONFIG_BPF_JIT=n."}], "lastModified": "2026-08-19T17:20:15.123", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}