# CVE-2026-68094: linux: In the Linux kernel, the following vulnerability has been resolved:  sched_ext: Preserve rq tracking across local DSQ...

CVE-2026-68094 is fixed in linux on 1 platform by DEBIAN-CVE-2026-68094 (version 7.1.6-1), released August 11, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-68094
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0020
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 10, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  sched_ext: Preserve rq tracking across local DSQ dispatch  dispatch_to_local_dsq() can run from scx_bpf_dsq_move_to_local() while ops.dispatch() has recorded the current rq. Moving a task to a local DSQ may switch to the source or destination rq before synchronously invoking ops.dequeue() through the following path:    SCX_CALL_OP(dispatch, rq)     ops.dispatch()       scx_bpf_dsq_move_to_local()         scx_flush_dispatch_buf()           finish_dispatch()             dispatch_to_local_dsq()               scx_dispatch_enqueue()                 local_dsq_post_enq()                   call_task_dequeue()                     SCX_CALL_OP_TASK(dequeue, locked_rq, ...)  The nested callback saves the recorded rq and restores it on return. If the rq tracking does not follow the lock switch, update_locked_rq() can trigger the following lockdep assertion while restoring an rq which is no longer held:    WARNING: kernel/sched/sched.h:1641 at call_task_dequeue+0x160/0x170   Call Trace:     scx_dispatch_enqueue+0x2b0/0x460     dispatch_to_local_dsq+0x138/0x230     scx_flush_dispatch_buf+0x1af/0x220     scx_bpf_dsq_move_to_local___v2+0xe2/0x1c0     bpf__sched_ext_ops_dispatch+0x4b/0xa7     do_pick_task_scx+0x3b6/0x910     __pick_next_task+0x105/0x1f0     __schedule+0x3e7/0x1980  Introduce switch_rq_lock() to update the tracking state together with each rq lock handoff. Use it in dispatch_to_local_dsq(), move_remote_task_to_local_dsq() and the in-balance paths of scx_dsq_move(), ensuring that scx_locked_rq() consistently refers to the rq whose lock is actually held throughout the lock dance.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.6-1 | [DEBIAN-CVE-2026-68094](https://patchblox.com/security/data/fix/linux/debian-cve-2026-68094.md) | Aug 11, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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