In the Linux kernel, the following vulnerability has been resolved:
net: xilinx: axienet: Fix BQL accounting for multi-BD TX packets
When a TX packet spans multiple buffer descriptors (scatter-gather),
axienet_free_tx_chain sums the per-BD actual length from descriptor
status into a caller-provided accumulator. That sum is reset on each
NAPI poll. If the BDs for a single packet complete across different
polls, the earlier bytes are lost and never credited to BQL. This
causes BQL to think bytes are permanently in-flight, eventually
stalling the TX queue.
The SKB pointer is stored only on the last BD of a packet. When that
BD completes, use skb->len for the byte count instead of summing
per-BD status lengths. This matches netdev_sent_queue(), which debits
skb->len, and naturally survives across polls because no partial
packet contributes to the accumulator.
References
Configurations
Configuration 1 (hide)
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History
08 May 2026, 18:38
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://git.kernel.org/stable/c/2a0323a913109b52bfc9f5ea7b92a1b249e07d3e - Patch | |
| References | () https://git.kernel.org/stable/c/3c3a6b9020c01fde7b22e8550105de0b59904f61 - Patch | |
| References | () https://git.kernel.org/stable/c/d1978d03e86785872871bff9c2623174b10740de - Patch | |
| CPE | cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:* |
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| First Time |
Linux linux Kernel
Linux |
|
| CWE | NVD-CWE-noinfo |
03 May 2026, 07:16
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 7.5 |
01 May 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 15:16
Updated : 2026-05-08 18:38
NVD link : CVE-2026-43031
Mitre link : CVE-2026-43031
CVE.ORG link : CVE-2026-43031
JSON object : View
Products Affected
linux
- linux_kernel
CWE