CVE-2026-53157
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-416 · Use after free
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.260
- Linux Kernel < 5.15.211
- Linux Kernel < 6.1.177
- Linux Kernel < 6.6.144
- Linux Kernel < 6.12.95
- Linux Kernel < 6.18.36
- Linux Kernel < 7.0.13
- Linux Kernel 7.1
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-53157.md and follow it. Check whether this project is affected by CVE-2026-53157. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- 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
- https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113
- https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9
References
- 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
- https://git.kernel.org/stable/c/bff309ea51f1395c1ef8be8b75ce62d28a319113
- https://git.kernel.org/stable/c/d59794337ea496042288c7c68356d9b9ca7f46a9