CVE-2024-38586

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

State: Published
Severity: Not scored
Published: Jun 19, 2024
Updated: May 11, 2026
Reserved: Jun 18, 2024

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 61c1c98e2607120ce9c3fa1bf75e6da909712b27Affected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before b6d21cf40de103d63ae78551098a7c06af8c98ddAffected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 0c48185a95309556725f818b82120bb74e9c627dAffected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 68222d7b4b72aa321135cd453dac37f00ec41fd1Affected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 078d5b7500d70af2de6b38e226b03f0b932026a6Affected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 54e7a0d111240c92c0f02ceba6eb8f26bf6d6479Affected 9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before c71e3a5cffd5309d7f84444df03d5b72600cc417Affected
LinuxLinux	5.7Affected before 5.7Not affected 5.10.221 through 5.10.Not affected 5.15.161 through 5.15.Not affected 6.1.93 through 6.1.Not affected 6.6.33 through 6.6.Not affected 6.8.12 through 6.8.Not affected 6.9.3 through 6.9.Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 61c1c98e2607120ce9c3fa1bf75e6da909712b27Affected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before b6d21cf40de103d63ae78551098a7c06af8c98ddAffected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 0c48185a95309556725f818b82120bb74e9c627dAffected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 68222d7b4b72aa321135cd453dac37f00ec41fd1Affected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 078d5b7500d70af2de6b38e226b03f0b932026a6Affected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before 54e7a0d111240c92c0f02ceba6eb8f26bf6d6479Affected
9020845fb5d6bb4876a38fdf1259600e7d9a63d4 to before c71e3a5cffd5309d7f84444df03d5b72600cc417Affected

LinuxLinux

5.7Affected
before 5.7Not affected
5.10.221 through 5.10.*Not affected
5.15.161 through 5.15.*Not affected
6.1.93 through 6.1.*Not affected
6.6.33 through 6.6.*Not affected
6.8.12 through 6.8.*Not affected
6.9.3 through 6.9.*Not affected
6.10 and laterNot affected

References

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