CVE-2026-53157

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < d59794337ea496042288c7c68356d9b9ca7f46a9affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < 6cd7067d6e4b0b2033ba2f918ecbd54dc2af3763affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < 2ec8011cce0cd0fc7a5068585d867fc08d508578affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < 09c9b92c2010481160245244ea8fa1d06d5d4ae0affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < bd2ab4d800fc26814d89328d87b5f97ef6aa906aaffected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < 52b8f5ef82c886f7cd24617915e4b1579ddfd001affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < bff309ea51f1395c1ef8be8b75ce62d28a319113affected
LinuxLinuxeeb74a9d45f781ec6f47b9e0a75a6a427b53f165 < 71de0177b28da751f407581a4515cf4d762f6296affected
LinuxLinux2.6.33affected
LinuxLinux0 < 2.6.33unaffected
LinuxLinux5.10.260 <= 5.10.*unaffected
LinuxLinux5.15.211 <= 5.15.*unaffected
LinuxLinux6.1.177 <= 6.1.*unaffected
LinuxLinux6.6.144 <= 6.6.*unaffected
LinuxLinux6.12.95 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References