{ "affected": [ { "ranges": [ { "events": [ { "introduced": "48fe583fe54177bfb80f348e2a5cc34c3f710095" }, { "fixed": "c2c48aa7a6be36d4c93da75d14d4b4f2f4168c81" }, { "fixed": "c80360b4e85099fc3835378a96a59c0a2480fb07" }, { "fixed": "5b452019a4127f63c1f2147237fc287d1581f606" }, { "fixed": "f30e2b879bda14bc3e1524fba6f8ab9ec119da90" }, { "fixed": "6effdbaca3cd8354540bdf42c7f5fb84412afeb7" }, { "fixed": "84a00be9b736aa5dce902a290f62cbbbdcfab9ed" }, { "fixed": "6dda8406d8a3da2519c8b388d443d7357839cb63" }, { "fixed": "6d827ade51a24e18d81afb9f32756d339520a14c" } ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "type": "GIT" } ] }, { "package": { "ecosystem": "Linux", "name": "Kernel" }, "ranges": [ { "events": [ { "introduced": "5.5.0" }, { "fixed": "5.10.261" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "5.11.0" }, { "fixed": "5.15.212" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "5.16.0" }, { "fixed": "6.1.178" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "6.2.0" }, { "fixed": "6.6.145" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "6.7.0" }, { "fixed": "6.12.96" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "6.13.0" }, { "fixed": "6.18.39" } ], "type": "ECOSYSTEM" }, { "events": [ { "introduced": "6.19.0" }, { "fixed": "7.1.4" } ], "type": "ECOSYSTEM" } ] } ], "database_specific": { "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64599.json" }, "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: amlogic - avoid double cleanup in meson_crypto_probe()\n\nWhen meson_allocate_chanlist() fails after a partial allocation, it already\nunwinds the allocated chanlist state through its local error path.\nmeson_crypto_probe() then jump to error_flow and calls\nmeson_free_chanlist() again, causing the same per-flow resources to be torn\ndown twice. In the reproduced failure path, the second teardown\nre-entered crypto_engine_exit() on an already destroyed worker and KASAN\nreported a slab-use-after-free in kthread_destroy_worker().\n\nPrevent double-free by handling partial allocation failures locally within\nmeson_allocate_chanlist() and skipping the outer cleanup path.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable.\n\nThe bug was reproduced in a QEMU x86_64 guest booted with KASAN on v7.1,\nusing the reproducer under tools/testing/meson_crypto_probe. The reproducer\nforces the second dma_alloc_attrs() call in the gxl-crypto probe path to\nreturn NULL, making meson_allocate_chanlist() fail after partial\ninitialization. On the unpatched kernel this reliably triggered a\nslab-use-after-free. With this fix applied, the same reproducer no longer\nemits any KASAN report and the probe fails cleanly with -ENOMEM.\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in kthread_destroy_worker+0xb2/0xd0\n Read of size 8 at addr ff1100010c057a68 by task insmod/265\n\n CPU: 1 UID: 0 PID: 265 Comm: insmod Tainted: G O 7.1.0-rc2-00376-g810af9adc907-dirty #10 PREEMPT(lazy)\n Tainted: [O]=OOT_MODULE\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x68/0xa0\n print_report+0xcb/0x5e0\n ? __virt_addr_valid+0x21d/0x3f0\n ? kthread_destroy_worker+0xb2/0xd0\n ? kthread_destroy_worker+0xb2/0xd0\n kasan_report+0xca/0x100\n ? kthread_destroy_worker+0xb2/0xd0\n kthread_destroy_worker+0xb2/0xd0\n meson_crypto_probe+0x4d0/0xc10 [amlogic_gxl_crypto]\n platform_probe+0x99/0x140\n really_probe+0x1c6/0x6a0\n ? __pfx___device_attach_driver+0x10/0x10\n __driver_probe_device+0x248/0x310\n ? acpi_driver_match_device+0xb0/0x100\n driver_probe_device+0x48/0x210\n ? __pfx___device_attach_driver+0x10/0x10\n __device_attach_driver+0x160/0x320\n bus_for_each_drv+0x104/0x190\n ? __pfx_bus_for_each_drv+0x10/0x10\n ? _raw_spin_unlock_irqrestore+0x2c/0x50\n __device_attach+0x19d/0x3b0\n ? __pfx___device_attach+0x10/0x10\n ? do_raw_spin_unlock+0x53/0x220\n device_initial_probe+0x78/0xa0\n bus_probe_device+0x5b/0x130\n device_add+0xcfd/0x1430\n ? __pfx_device_add+0x10/0x10\n ? insert_resource+0x34/0x50\n ? lock_release+0xc9/0x290\n platform_device_add+0x24e/0x590\n ? __pfx_meson_crypto_probe_repro_init+0x10/0x10 [meson_crypto_probe_repro]\n meson_crypto_probe_repro_init+0x330/0xff0 [meson_crypto_probe_repro]\n do_one_initcall+0xc0/0x450\n ? __pfx_do_one_initcall+0x10/0x10\n ? _raw_spin_unlock_irqrestore+0x2c/0x50\n ? __create_object+0x59/0x80\n ? kasan_unpoison+0x27/0x60\n do_init_module+0x27b/0x7d0\n ? __pfx_do_init_module+0x10/0x10\n ? kasan_quarantine_put+0x84/0x1d0\n ? kfree+0x32c/0x510\n ? load_module+0x561e/0x5ff0\n load_module+0x54fe/0x5ff0\n ? __pfx_load_module+0x10/0x10\n ? security_file_permission+0x20/0x40\n ? kernel_read_file+0x23d/0x6e0\n ? mmap_region+0x235/0x4a0\n ? __pfx_kernel_read_file+0x10/0x10\n ? __file_has_perm+0x2c0/0x3e0\n init_module_from_file+0x158/0x180\n ? __pfx_init_module_from_file+0x10/0x10\n ? __lock_acquire+0x45a/0x1ba0\n ? idempotent_init_module+0x315/0x610\n ? lock_release+0xc9/0x290\n ? lock\n---truncated---", "id": "CVE-2026-64599", "modified": "2026-08-12T03:51:46.812775624Z", "published": "2026-08-06T07:13:53.328Z", "references": [ { "type": "WEB", "url": "https://git.kernel.org/stable/c/5b452019a4127f63c1f2147237fc287d1581f606" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6d827ade51a24e18d81afb9f32756d339520a14c" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6dda8406d8a3da2519c8b388d443d7357839cb63" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/6effdbaca3cd8354540bdf42c7f5fb84412afeb7" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/84a00be9b736aa5dce902a290f62cbbbdcfab9ed" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/c2c48aa7a6be36d4c93da75d14d4b4f2f4168c81" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/c80360b4e85099fc3835378a96a59c0a2480fb07" }, { "type": "WEB", "url": "https://git.kernel.org/stable/c/f30e2b879bda14bc3e1524fba6f8ab9ec119da90" }, { "type": "ADVISORY", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64599.json" }, { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-64599" }, { "type": "PACKAGE", "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git" } ], "schema_version": "1.9.0", "severity": [ { "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "type": "CVSS_V3" } ], "summary": "crypto: amlogic - avoid double cleanup in meson_crypto_probe()" }