# CVE-2021-46914: linux: In the Linux kernel, the following vulnerability has been resolved:  ixgbe: fix unbalanced device enable/disable in s...

CVE-2021-46914 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46914, released February 27, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-46914
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0023
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 27, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  ixgbe: fix unbalanced device enable/disable in suspend/resume  pci_disable_device() called in __ixgbe_shutdown() decreases dev->enable_cnt by 1. pci_enable_device_mem() which increases dev->enable_cnt by 1, was removed from ixgbe_resume() in commit 6f82b2558735 ("ixgbe: use generic power management"). This caused unbalanced increase/decrease. So add pci_enable_device_mem() back.  Fix the following call trace.    ixgbe 0000:17:00.1: disabling already-disabled device   Call Trace:    __ixgbe_shutdown+0x10a/0x1e0 [ixgbe]    ixgbe_suspend+0x32/0x70 [ixgbe]    pci_pm_suspend+0x87/0x160    ? pci_pm_freeze+0xd0/0xd0    dpm_run_callback+0x42/0x170    __device_suspend+0x114/0x460    async_suspend+0x1f/0xa0    async_run_entry_fn+0x3c/0xf0    process_one_work+0x1dd/0x410    worker_thread+0x34/0x3f0    ? cancel_delayed_work+0x90/0x90    kthread+0x14c/0x170    ? kthread_park+0x90/0x90    ret_from_fork+0x1f/0x30

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.10.38-1 | [DEBIAN-CVE-2021-46914](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46914.md) | Feb 27, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.10.38-1 | [DEBIAN-CVE-2021-46914](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46914.md) | Feb 27, 2024 |
| Linux | linux Debian 14 | 5.10.38-1 | [DEBIAN-CVE-2021-46914](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46914.md) | Feb 27, 2024 |

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