CVE-2024-38586
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| rhel | 9 | fixed | |
| rocky | 8 | fixed | |
| sles | affected | | |
| rocky | 9 | fixed | |
| debian | bookworm | fixed | 6.1.94-1 |
| debian | bullseye | fixed | 5.10.221-1 |
| debian | forky | fixed | 6.8.12-1 |
| debian | sid | fixed | 6.8.12-1 |
| debian | trixie | fixed | 6.8.12-1 |
| almalinux | 9 | fixed | kernel-headers-5.14.0-427.26.1.el9_4.aarch64.rpm |
References
- https://access.redhat.com/errata/RHSA-2024:4583
- https://errata.rockylinux.org/RLSA-2024:8870
- https://errata.rockylinux.org/RLSA-2024:8856
- https://www.suse.com/security/cve/CVE-2024-38586.html
- https://errata.rockylinux.org/RLSA-2024:4583
- https://security-tracker.debian.org/tracker/CVE-2024-38586
- https://bugzilla.redhat.com/2267509
- https://bugzilla.redhat.com/2273082
- https://bugzilla.redhat.com/2273466
- https://bugzilla.redhat.com/2275735
- https://bugzilla.redhat.com/2277238
- https://bugzilla.redhat.com/2280434
- https://bugzilla.redhat.com/2281131
- https://bugzilla.redhat.com/2281925
- https://bugzilla.redhat.com/2283401
- https://bugzilla.redhat.com/2284541
- https://bugzilla.redhat.com/2284581
- https://bugzilla.redhat.com/2293230
- https://bugzilla.redhat.com/2293380
- https://bugzilla.redhat.com/2293402
- https://bugzilla.redhat.com/2293456
- https://bugzilla.redhat.com/2293653
- https://bugzilla.redhat.com/2294225
- https://errata.almalinux.org/9/ALSA-2024-4583.html
- https://access.redhat.com/errata/RHSA-2024:8856
💬 Discuss CVE-2024-38586 on VIR Community →
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.