{ "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-2026-64469", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-64469", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-07-25T08:51:34.025Z", "updatedAt": "2026-08-17T04:56:14.927Z", "importedAt": "2026-10-24T01:58:25.636Z", "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": "binder: fix UAF in binder_thread_release()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix UAF in binder_thread_release()\n\nWhen a thread exits, binder_thread_release() walks its transaction stack\nto clear the t->from and t->to_proc that correspond with the exiting\nthread. However, a process dying in parallel might attempt to kfree some\nof these transactions. And if one of them has no associated t->to_proc,\nthe t->to_proc->inner_lock will not be acquired.\n\nThis means that transaction accesses in binder_thread_release() after\nt->to_proc has been cleared might race with binder_free_transaction()\nand cause a use-after-free error as reported by KASAN:\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in binder_thread_release+0x5d0/0x798\n Write of size 8 at addr ffff000016627500 by task X/715\n\n CPU: 17 UID: 0 PID: 715 Comm: X Not tainted 7.1.0-rc5-00149-g8fde5d1d47f6 #30 PREEMPT\n Hardware name: linux,dummy-virt (DT)\n Call trace:\n binder_thread_release+0x5d0/0x798\n binder_ioctl+0x12c0/0x299c\n [...]\n\n Allocated by task 717 on cpu 18 at 67.267803s:\n __kasan_kmalloc+0xa0/0xbc\n __kmalloc_cache_noprof+0x174/0x444\n binder_transaction+0x554/0x8150\n binder_thread_write+0xa30/0x4354\n binder_ioctl+0x20f0/0x299c\n [...]\n\n Freed by task 202 on cpu 18 at 90.416221s:\n __kasan_slab_free+0x58/0x80\n kfree+0x1a0/0x4a4\n binder_free_transaction+0x150/0x294\n binder_send_failed_reply+0x398/0x6d8\n binder_release_work+0x3e4/0x4ec\n binder_deferred_func+0xbd8/0x104c\n [...]\n ==================================================================\n\nIn order to avoid this, make sure that binder_free_transaction() reads\nthe t->to_proc under the transaction lock. This will serialize the\ntransaction release with the accesses in binder_thread_release(). Plus,\nit matches the documented locking rules for @to_proc.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "1f96f8c0a6ed4f6d01d3dd29ad0cbf08dde96082" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "df1a17abba8d6fac5f965adcb8113ceace6e4949" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "38e1a71728e5795b670cc159c18e286a40aeebb4" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "faa070c7ad8ba25dcd0b12d7cdbb419e336f5391" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "e63032dc715026a96bcaa13d375a8e15c91caa84" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "ea02df466df60ecd758eb3b4df3f0cadc5c886ce" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "ef5439ba5b9ac93349f5df12ef88b42a0ce26340" }, { "version": "7a4408c6bd3eb1dafba67986259191be081e3efb", "status": "affected", "versionType": "git", "lessThan": "114a116aaa5f0295376cdf12da743c5bce3b20ce" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.14", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.14" }, { "version": "5.10.261", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.212", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.178", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.145", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.96", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.39", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.1.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.1.*" }, { "version": "7.2", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }