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CVE-2026-64468: Linux

7.8

CVSS 3.1

Няма данни

Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

Няма потвърждение

Атакува се

Няма данни

Време до експлоатация

Атакува се локално, без особени условия, с обикновен потребителски вход и без действие от потребителя.

    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: binder: fix UAF in binder_free_transaction() In binder_free_transaction(), the t->to_proc is read under the t->lock. However, once the t->lock is dropped, the to_proc can die in parallel. This leads to a use-after-free error when we attempt to acquire its inner lock right afterwards: ================================================================== BUG: KASAN: slab-use-after-free in _raw_spin_lock+0xe4/0x1a0 Write of size 4 at addr ffff00001125da70 by task B/672 CPU: 20 UID: 0 PID: 672 Comm: B Not tainted 7.1.0-rc6-00284-g8e65320d91cd #4 PREEMPT Hardware name: linux,dummy-virt (DT) Call trace: _raw_spin_lock+0xe4/0x1a0 binder_free_transaction+0x8c/0x320 binder_send_failed_reply+0x21c/0x2f8 binder_thread_release+0x488/0x7e0 binder_ioctl+0x12c0/0x29a0 [...] Allocated by task 675: __kmalloc_cache_noprof+0x174/0x444 binder_open+0x118/0xb70 do_dentry_open+0x374/0x1040 vfs_open+0x58/0x3bc [...] Freed by task 212: __kasan_slab_free+0x58/0x80 kfree+0x1a0/0x4a4 binder_proc_dec_tmpref+0x32c/0x5e0 binder_deferred_func+0xc48/0x104c process_one_work+0x53c/0xbc0 [...] ================================================================== To prevent this, pin the target thread (t->to_thread) to guarantee the target process remains alive. Undelivered transactions without a target thread are already safe, as the target process can only be the current context in those paths.

    Засегнати продукти

    • Linux Linux: a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 5602a43f251c3d75312df91a422675fc00ca3dce; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 0be901ab1dcc4af59b88f2e324493bb283850167; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 48aeda9f8039e4a6971d1804578efde7f2c01eda; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 45df558c543bb5543bacc8065fd7c567740781e5; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди d45ef513eed1abebfec90c3cfb6ae50c2a4182db; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 328ccf32acb87e8bbb1fe2b065068c574e4db2bf; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди 0f15f0f6ca5df566275ce517f257af2559528b41; a370003cc301d4361bae20c9ef615f89bf8d1e8a преди f223d27a546c1e1f48d38fd67760e78f068fe8c4; a4a3c070b8760f71c8311399fa9bfe67c8629bca; 22068d49d09d2b3890e19d7b2048a33340f992da; 0e3b977a8f1be01dcfa0baae68851b1f55f2a0a9; 4.14.136 преди 4.15; 4.19.64 преди 4.20; 5.1.15 преди 5.2
    • Linux Linux: 5.2; преди 5.2; 5.10.261 до 5.10.*; 5.15.212 до 5.15.*; 6.1.178 до 6.1.*; 6.6.145 до 6.6.*; 6.12.96 до 6.12.*; 6.18.39 до 6.18.*; 7.1.4 до 7.1.*; от 7.2 нататък

    История

    • 25 юли 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-64468: Linux | freedomonline.bg