CVE-2024-38586

r8169: Fix possible ring buffer corruption on fragmented Tx packets.

Description

In the Linux kernel, the following vulnerability has been resolved: r8169: Fix possible ring buffer corruption on fragmented Tx packets. An issue was found on the RTL8125b when transmitting small fragmented packets, whereby invalid entries were inserted into the transmit ring buffer, subsequently leading to calls to dma_unmap_single() with a null address. This was caused by rtl8169_start_xmit() not noticing changes to nr_frags which may occur when small packets are padded (to work around hardware quirks) in rtl8169_tso_csum_v2(). To fix this, postpone inspecting nr_frags until after any padding has been applied.

N/A

CVSS

Severity:

EPSS 0.26%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/61c1c98e2607120ce9c3fa1bf75e6da909712b27
https://git.kernel.org/stable/c/b6d21cf40de103d63ae78551098a7c06af8c98dd
https://git.kernel.org/stable/c/0c48185a95309556725f818b82120bb74e9c627d
https://git.kernel.org/stable/c/68222d7b4b72aa321135cd453dac37f00ec41fd1
https://git.kernel.org/stable/c/078d5b7500d70af2de6b38e226b03f0b932026a6
https://git.kernel.org/stable/c/54e7a0d111240c92c0f02ceba6eb8f26bf6d6479
https://git.kernel.org/stable/c/c71e3a5cffd5309d7f84444df03d5b72600cc417

Frequently Asked Questions

What is the severity of CVE-2024-38586?: CVE-2024-38586 has not yet been assigned a CVSS score.
How to fix CVE-2024-38586?: To fix CVE-2024-38586, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-38586 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2024-38586 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-38586?: CVE-2024-38586 affects Linux Linux, Linux Linux.

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