CVE-2026-53157
High
Description
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.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJun 25, 2026
First seenJun 25, 2026
How to fix
Update
- linux linux_kernel5.10.260, 5.15.211, 6.1.177, 6.6.144, 6.12.95, 6.18.36, 7.0.13 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.33 ≤ v < 5.10.260, 5.11 ≤ v < 5.15.211, 5.16 ≤ v < 6.1.177, 6.2 ≤ v < 6.6.144, 6.7 ≤ v < 6.12.95, 6.13 ≤ v < 6.18.36, 6.19 ≤ v < 7.0.13, 7.1 | 5.10.260, 5.15.211, 6.1.177, 6.6.144, 6.12.95, 6.18.36, 7.0.13 |
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