Detections
Analytics

Echo: linux: security update to 6.1.162-1

high Tenable Self-Hosted Container Security Plugin ID 463399

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - In the Linux kernel, the following vulnerability has been resolved: usb: xhci: Apply the link chain quirk
 on NEC isoc endpoints Two clearly different specimens of NEC uPD720200 (one with start/stop bug, one
 without) were seen to cause IOMMU faults after some Missed Service Errors. Faulting address is immediately
 after a transfer ring segment and patched dynamic debug messages revealed that the MSE was received when
 waiting for a TD near the end of that segment: [ 1.041954] xhci_hcd: Miss service interval error for slot
 1 ep 2 expected TD DMA ffa08fe0 [ 1.042120] xhci_hcd: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0005
 address=0xffa09000 flags=0x0000] [ 1.042146] xhci_hcd: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x0005
 address=0xffa09040 flags=0x0000] It gets even funnier if the next page is a ring segment accessible to the
 HC. Below, it reports MSE in segment at ff1e8000, plows through a zero-filled page at ff1e9000 and starts
 reporting events for TRBs in page at ff1ea000 every microframe, instead of jumping to seg ff1e6000. [
 7.041671] xhci_hcd: Miss service interval error for slot 1 ep 2 expected TD DMA ff1e8fe0 [ 7.041999]
 xhci_hcd: Miss service interval error for slot 1 ep 2 expected TD DMA ff1e8fe0 [ 7.042011] xhci_hcd: WARN:
 buffer overrun event for slot 1 ep 2 on endpoint [ 7.042028] xhci_hcd: All TDs skipped for slot 1 ep 2.
 Clear skip flag. [ 7.042134] xhci_hcd: WARN: buffer overrun event for slot 1 ep 2 on endpoint [ 7.042138]
 xhci_hcd: ERROR Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 31 [ 7.042144]
 xhci_hcd: Looking for event-dma 00000000ff1ea040 trb-start 00000000ff1e6820 trb-end 00000000ff1e6820 [
 7.042259] xhci_hcd: WARN: buffer overrun event for slot 1 ep 2 on endpoint [ 7.042262] xhci_hcd: ERROR
 Transfer event TRB DMA ptr not part of current TD ep_index 2 comp_code 31 [ 7.042266] xhci_hcd: Looking
 for event-dma 00000000ff1ea050 trb-start 00000000ff1e6820 trb-end 00000000ff1e6820 At some point
 completion events change from Isoch Buffer Overrun to Short Packet and the HC finally finds cycle bit
 mismatch in ff1ec000. [ 7.098130] xhci_hcd: ERROR Transfer event TRB DMA ptr not part of current TD
 ep_index 2 comp_code 13 [ 7.098132] xhci_hcd: Looking for event-dma 00000000ff1ecc50 trb-start
 00000000ff1e6820 trb-end 00000000ff1e6820 [ 7.098254] xhci_hcd: ERROR Transfer event TRB DMA ptr not part
 of current TD ep_index 2 comp_code 13 [ 7.098256] xhci_hcd: Looking for event-dma 00000000ff1ecc60 trb-
 start 00000000ff1e6820 trb-end 00000000ff1e6820 [ 7.098379] xhci_hcd: Overrun event on slot 1 ep 2 It's
 possible that data from the isochronous device were written to random buffers of pending TDs on other
 endpoints (either IN or OUT), other devices or even other HCs in the same IOMMU domain. Lastly, an error
 from a different USB device on another HC. Was it caused by the above? I don't know, but it may have been.
 The disk was working without any other issues and generated PCIe traffic to starve the NEC of upstream BW
 and trigger those MSEs. The two HCs shared one x1 slot by means of a commercial "PCIe splitter" board. [
 7.162604] usb 10-2: reset SuperSpeed USB device number 3 using xhci_hcd [ 7.178990] sd 9:0:0:0: [sdb]
 tag#0 UNKNOWN(0x2003) Result: hostbyte=0x07 driverbyte=DRIVER_OK cmd_age=0s [ 7.179001] sd 9:0:0:0: [sdb]
 tag#0 CDB: opcode=0x28 28 00 04 02 ae 00 00 02 00 00 [ 7.179004] I/O error, dev sdb, sector 67284480 op
 0x0:(READ) flags 0x80700 phys_seg 5 prio class 0 Fortunately, it appears that this ridiculous bug is
 avoided by setting the chain bit of Link TRBs on isochronous rings. Other ancient HCs are known which also
 expect the bit to be set and they ignore Link TRBs if it's not. Reportedly, 0.95 spec guaranteed that the
 bit is set. The bandwidth-starved NEC HC running a 32KB/uframe UVC endpoint reports tens of MSEs per
 second and runs into the bug within seconds. Chaining Link TRBs allows the same workload to run for many
 minutes, many times. No ne ---truncated--- (CVE-2025-22022)

Solution

Update the linux library and its related packages to version 6.1.162-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2025-22022

Plugin Details

Severity: High

ID: 463399

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: High

Score: 7.7

Percentile: 99.14

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2025-22022

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/15/2025

Vulnerability Publication Date: 4/14/2025

Reference Information

CVE: CVE-2025-22022