CVE-2026-53157
In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type.
脆弱性の種類
In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonet_device after RCU grace period phonet_device_destroy() removes a phonet_device from the per-net device list with list_del_rcu(), but frees it immediately. RCU readers walking the same list can still hold a pointer to the object after it has been removed, leading to a slab-use-after-free. Use kfree_rcu(), matching the lifetime rule already used by phonet_address_del() for the same object type.
影響を受ける製品
- linux linux_kernel
参考情報
- https://git.kernel.org/stable/c/09c9b92c2010481160245244ea8fa1d06d5d4ae0
- https://git.kernel.org/stable/c/2ec8011cce0cd0fc7a5068585d867fc08d508578
- https://git.kernel.org/stable/c/52b8f5ef82c886f7cd24617915e4b1579ddfd001
- https://git.kernel.org/stable/c/6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763
- https://git.kernel.org/stable/c/71de0177b28da751f407581a4515cf4d762f6296
- https://git.kernel.org/stable/c/bd2ab4d800fc26814d89328d87b5f97ef6aa906a