CVE-2025-22103
What it is
In the Linux kernel, the following vulnerability has been resolved: net: fix NULL pointer dereference in l3mdev_l3_rcv When delete l3s ipvlan: ip link del link eth0 ipvlan1 type ipvlan mode l3s This may cause a null pointer dereference: Call trace: ip_rcv_finish+0x48/0xd0 ip_rcv+0x5c/0x100 __netif_receive_skb_one_core+0x64/0xb0 __netif_receive_skb+0x20/0x80 process_backlog+0xb4/0x204 napi_poll+0xe8/0x294 net_rx_action+0xd8/0x22c __do_softirq+0x12c/0x354 This is because l3mdev_l3_rcv() visit dev->l3mdev_ops after ipvlan_l3s_unregister() assign the dev->l3mdev_ops to NULL. The process like this: (CPU1) | (CPU2) l3mdev_l3_rcv() | check dev->priv_flags: | master = skb->dev; | | | ipvlan_l3s_unregister() | set dev->priv_flags | dev->l3mdev_ops = NULL; | visit master->l3mdev_ops | To avoid this by do not set dev->l3mdev_ops when unregister l3s ipvlan.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% 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: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Modified
Affected
- Linux Kernel < 6.12.46
- Linux Kernel < 6.14.2
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2025-22103.md and follow it. Check whether this project is affected by CVE-2025-22103. 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/0032c99e83b9ce6d5995d65900aa4b6ffb501cce
- https://git.kernel.org/stable/c/59599bce44af3df7a215ebc81cb166426e1c9204
- https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132
References
- https://git.kernel.org/stable/c/0032c99e83b9ce6d5995d65900aa4b6ffb501cce
- https://git.kernel.org/stable/c/1da52878f7fb74ace304f74325bb89e3e5546b55
- https://git.kernel.org/stable/c/52b44d8c653459c658b733d13658afdde45f6836
- https://git.kernel.org/stable/c/59599bce44af3df7a215ebc81cb166426e1c9204
- https://git.kernel.org/stable/c/8da4d7f9141e8dbd3ece2f0e6930a0ea8812c862
- https://git.kernel.org/stable/c/d97d6b1bd2b7f2a188d261d44c4519a13b8c406a
- https://git.kernel.org/stable/c/f9dff65140efc289f01bcf39c3ca66a8806b6132