# CVE-2024-26587: linux: In the Linux kernel, the following vulnerability has been resolved:  net: netdevsim: don't try to destroy PHC on VFs...

CVE-2024-26587 is fixed in 15 products on 1 platform, first by DEBIAN-CVE-2024-26587, released February 22, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-26587
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0022
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 22, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  net: netdevsim: don't try to destroy PHC on VFs  PHC gets initialized in nsim_init_netdevsim(), which is only called if (nsim_dev_port_is_pf()).  Create a counterpart of nsim_init_netdevsim() and move the mock_phc_destroy() there.  This fixes a crash trying to destroy netdevsim with VFs instantiated, as caught by running the devlink.sh test:      BUG: kernel NULL pointer dereference, address: 00000000000000b8     RIP: 0010:mock_phc_destroy+0xd/0x30     Call Trace:      <TASK>      nsim_destroy+0x4a/0x70 [netdevsim]      __nsim_dev_port_del+0x47/0x70 [netdevsim]      nsim_dev_reload_destroy+0x105/0x120 [netdevsim]      nsim_drv_remove+0x2f/0xb0 [netdevsim]      device_release_driver_internal+0x1a1/0x210      bus_remove_device+0xd5/0x120      device_del+0x159/0x490      device_unregister+0x12/0x30      del_device_store+0x11a/0x1a0 [netdevsim]      kernfs_fop_write_iter+0x130/0x1d0      vfs_write+0x30b/0x4b0      ksys_write+0x69/0xf0      do_syscall_64+0xcc/0x1e0      entry_SYSCALL_64_after_hwframe+0x6f/0x77

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | bpftool ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-container ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-container ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-container-debug ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-container-debug ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-core ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-core ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-core ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-core ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-devel ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-devel ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-modules ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-modules ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-debug-modules-extra ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-devel ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-devel ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-doc ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-doc ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-modules ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-modules ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-modules-extra ol 8 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | kernel-uek-modules-extra ol 9 | 0:5.15.0-300.163.18.el9uek | [ELSA-2024-12682](https://patchblox.com/security/data/fix/linux/elsa-2024-12682.md) | Sep 23, 2024 |
| Linux | linux Debian 13.5 (trixie) | 6.6.15-1 | [DEBIAN-CVE-2024-26587](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26587.md) | Feb 22, 2024 |
| Linux | linux Debian 14 | 6.6.15-1 | [DEBIAN-CVE-2024-26587](https://patchblox.com/security/data/fix/linux/debian-cve-2024-26587.md) | Feb 22, 2024 |

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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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