Riskcovery

CVE-2022-50712

devlink: hold region lock when flushing snapshots

State
Published
Severity
Not scored
Published
Dec 24, 2025
Updated
May 11, 2026
Reserved
Dec 24, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

devlink: hold region lock when flushing snapshots

Netdevsim triggers a splat on reload, when it destroys regions with snapshots pending:

WARNING: CPU: 1 PID: 787 at net/core/devlink.c:6291 devlink_region_snapshot_del+0x12e/0x140 CPU: 1 PID: 787 Comm: devlink Not tainted 6.1.0-07460-g7ae9888d6e1c #580 RIP: 0010:devlink_region_snapshot_del+0x12e/0x140 Call Trace: <TASK> devl_region_destroy+0x70/0x140 nsim_dev_reload_down+0x2f/0x60 [netdevsim] devlink_reload+0x1f7/0x360 devlink_nl_cmd_reload+0x6ce/0x860 genl_family_rcv_msg_doit.isra.0+0x145/0x1c0

This is the locking assert in devlink_region_snapshot_del(), we're supposed to be holding the region->snapshot_lock here.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 2dec18ad826f52658f7781ee995d236cc449b678 to before 49383d4e59bb704341aaa1d51440ccce58270e61Affected
  • 2dec18ad826f52658f7781ee995d236cc449b678 to before 6298cab4d80bfdb6fe01fe31fd9f0ba26317fdaeAffected
  • 2dec18ad826f52658f7781ee995d236cc449b678 to before b4cafb3d2c740f8d1b1234b43ac4a60e5291c960Affected
LinuxLinux
  • 6.0Affected
  • before 6.0Not affected
  • 6.0.16 through 6.0.*Not affected
  • 6.1.2 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

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