CVE-2024-46799: net: ethernet: ti: am65-cpsw: Fix NULL dereference on XDP_TX
First published: Wed Sep 18 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: net: ethernet: ti: am65-cpsw: Fix NULL dereference on XDP_TX If number of TX queues are set to 1 we get a NULL pointer dereference during XDP_TX. ~# ethtool -L eth0 tx 1 ~# ./xdp-trafficgen udp -A <ipv6-src> -a <ipv6-dst> eth0 -t 2 Transmitting on eth0 (ifindex 2) [ 241.135257] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000030 Fix this by using actual TX queues instead of max TX queues when picking the TX channel in am65_cpsw_ndo_xdp_xmit().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=6.10<6.10.10 | |
| Linux kernel | =6.11-rc1 | |
| Linux kernel | =6.11-rc2 | |
| Linux kernel | =6.11-rc3 | |
| Linux kernel | =6.11-rc4 | |
| Linux kernel | =6.11-rc5 | |
| Linux kernel | =6.11-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-46799?
CVE-2024-46799 is considered a medium severity vulnerability due to potential impact on system stability.
What impact does CVE-2024-46799 have on systems?
CVE-2024-46799 can lead to a NULL pointer dereference when using XDP_TX with a single TX queue, potentially crashing the system.
How do I fix CVE-2024-46799?
To fix CVE-2024-46799, you should update the Linux kernel to a version that includes the patch, specifically greater than 6.10.10 or any stable version beyond 6.11-rc6.
Which versions of the Linux kernel are affected by CVE-2024-46799?
CVE-2024-46799 affects Linux kernel versions from 6.10 up to and including 6.11-rc6.
What is the recommended action for administrators regarding CVE-2024-46799?
Administrators are advised to apply the relevant kernel update or patch to mitigate the risks associated with CVE-2024-46799.
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