CVE-2024-50190 ice: fix memleak in ice_init_tx_topology()
A memory leak in the Intel ice network driver can exhaust kernel memory, leading to system instability or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-50190?
CVE-2024-50190 is a medium-severity denial of service vulnerability in Linux kernel, published on 8 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ice: fix memleak in ice_init_tx_topology()
Fix leak of the FW blob (DDP pkg).
Make ice_cfg_tx_topo() const-correct, so ice_init_tx_topology() can avoid copying whole FW blob. Copy just the topology section, and only when needed. Reuse the buffer allocated for the read of the current topology.
This was found by kmemleak, with the following trace for each PF: [<ffffffff8761044d>] kmemdup_noprof+0x1d/0x50 [<ffffffffc0a0a480>] ice_init_ddp_config+0x100/0x220 [ice] [<ffffffffc0a0da7f>] ice_init_dev+0x6f/0x200 [ice] [<ffffffffc0a0dc49>] ice_init+0x29/0x560 [ice] [<ffffffffc0a10c1d>] ice_probe+0x21d/0x310 [ice]
Constify ice_cfg_tx_topo() @buf parameter. This cascades further down to few more functions.
Weakness: CWE-401
Which versions are affected by CVE-2024-50190?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2024-50190?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-50190 being exploited?
There is no known exploitation of CVE-2024-50190 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as BELL-CVE-2024-50190, DEBIAN-CVE-2024-50190, GHSA-rhx4-7vf5-j6rw, UBUNTU-CVE-2024-50190.