net: phonet: free phonet_device after RCU grace period

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CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

UBUNTU-CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53157 net: phonet: free phonet_device after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

EUVD-2026-39248

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53157

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53157

The CVE-2026-53157 issue affects the Linux kernel’s phonet code: phonet_device is removed from the per-net device list with list_del_rcu(), but freed immediately, creating a use-after-free for readers that still hold pointers. The root cause is mismatched lifetime management; the fix switches to ...

PT-2026-52253

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A slab-use-after-free issue exists in the phonet device destroy function. The function removes a phonet device from the per-net device list using list del rcu but frees the memory...

CVE-2026-31623 net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()

In the Linux kernel, the following vulnerability has been resolved: net: usb: cdc-phonet: fix skb frags overflow in rxcomplete A malicious USB device claiming to be a CDC Phonet modem can overflow the skbsharedinfo-frags array by sending an unbounded sequence of full-page bulk transfers. Drop the...