CVE-2026-31658
In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb.
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: net: altera-tse: fix skb leak on DMA mapping error in tse_start_xmit() When dma_map_single() fails in tse_start_xmit(), the function returns NETDEV_TX_OK without freeing the skb. Since NETDEV_TX_OK tells the stack the packet was consumed, the skb is never freed, leaking memory on every DMA mapping failure. Add dev_kfree_skb_any() before returning to properly free the skb.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-401
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/2eb9d67704ca8f1101f7435b85f113ede471f9f2Patch
- https://git.kernel.org/stable/c/3aca300e88afe56afb000cdc4c65383014fb17f9Patch
- https://git.kernel.org/stable/c/60f462cd2716d86bd2174f9d5e035c9278f30480Patch
- https://git.kernel.org/stable/c/6dede3967619b5944003227a5d09fdc21ed57d10Patch
- https://git.kernel.org/stable/c/9f3ec44aeb58501d11834048d5d0dbaeacb6d4e7Patch
- https://git.kernel.org/stable/c/ae2cd46f57f422b51aedd406ff5d75cbff401d5dPatch
- https://git.kernel.org/stable/c/cb1d318702fdf643061350d164250198df4116f2Patch
- https://git.kernel.org/stable/c/d5ec406f0543bd6cdfd563b08015fdec8c4d5712Patch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.