{"id":"CVE-2024-26587","summary":"net: netdevsim: don't try to destroy PHC on VFs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netdevsim: don't try to destroy PHC on VFs\n\nPHC gets initialized in nsim_init_netdevsim(), which\nis only called if (nsim_dev_port_is_pf()).\n\nCreate a counterpart of nsim_init_netdevsim() and\nmove the mock_phc_destroy() there.\n\nThis fixes a crash trying to destroy netdevsim with\nVFs instantiated, as caught by running the devlink.sh test:\n\n    BUG: kernel NULL pointer dereference, address: 00000000000000b8\n    RIP: 0010:mock_phc_destroy+0xd/0x30\n    Call Trace:\n     \u003cTASK\u003e\n     nsim_destroy+0x4a/0x70 [netdevsim]\n     __nsim_dev_port_del+0x47/0x70 [netdevsim]\n     nsim_dev_reload_destroy+0x105/0x120 [netdevsim]\n     nsim_drv_remove+0x2f/0xb0 [netdevsim]\n     device_release_driver_internal+0x1a1/0x210\n     bus_remove_device+0xd5/0x120\n     device_del+0x159/0x490\n     device_unregister+0x12/0x30\n     del_device_store+0x11a/0x1a0 [netdevsim]\n     kernfs_fop_write_iter+0x130/0x1d0\n     vfs_write+0x30b/0x4b0\n     ksys_write+0x69/0xf0\n     do_syscall_64+0xcc/0x1e0\n     entry_SYSCALL_64_after_hwframe+0x6f/0x77","modified":"2026-08-12T03:51:11.473392125Z","published":"2024-02-22T16:13:32.442Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26587.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26587.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-26587"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"b63e78fca889e07931ec8f259701718a24e5052e"},{"fixed":"08aca65997fb6f233066883b1f1e653bcb1f26ca"},{"fixed":"c5068e442eed063d2f1658e6b6d3c1c6fcf1e588"},{"fixed":"ea937f77208323d35ffe2f8d8fc81b00118bfcda"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26587.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.7.2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26587.json"}}],"schema_version":"1.9.0"}