cve-2024-26587
Vulnerability from cvelistv5
Published
2024-02-22 16:13
Modified
2024-08-02 00:07
Severity
Summary
net: netdevsim: don't try to destroy PHC on VFs
References
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"id": "CVE-2024-26587",
"options": [
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"Exploitation": "none"
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"Automatable": "no"
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"Technical Impact": "partial"
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"timestamp": "2024-02-26T14:37:54.234702Z",
"version": "2.0.3"
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"title": "CISA ADP Vulnrichment"
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"dateUpdated": "2024-08-02T00:07:19.707Z",
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"cna": {
"affected": [
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"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/netdevsim/netdev.c"
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: netdevsim: don\u0027t 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"
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"url": "https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda"
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"title": "net: netdevsim: don\u0027t try to destroy PHC on VFs",
"x_generator": {
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"assignerShortName": "Linux",
"cveId": "CVE-2024-26587",
"datePublished": "2024-02-22T16:13:32.442Z",
"dateReserved": "2024-02-19T14:20:24.126Z",
"dateUpdated": "2024-08-02T00:07:19.707Z",
"state": "PUBLISHED"
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"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2024-26587\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-02-22T17:15:08.937\",\"lastModified\":\"2024-03-18T18:09:54.027\",\"vulnStatus\":\"Analyzed\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: netdevsim: don\u0027t 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\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: netdevsim: no intente destruir PHC en VF PHC se inicializa en nsim_init_netdevsim(), que s\u00f3lo se llama si (nsim_dev_port_is_pf()). Cree una contraparte de nsim_init_netdevsim() y mueva el mock_phc_destroy() all\u00ed. Esto soluciona un fallo al intentar destruir netdevsim con VF instanciados, detectado al ejecutar la prueba devlink.sh: ERROR: desreferencia del puntero NULL del n\u00facleo, direcci\u00f3n: 00000000000000b8 RIP: 0010:mock_phc_destroy+0xd/0x30 Seguimiento de llamadas: 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] dispositivo_release_driver_internal+0x1a1/0x210 bus_remove_device+0xd5/0x120 dispositivo_del+0x159/0x490 dispositivo_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\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"6.6.14\",\"matchCriteriaId\":\"E897E511-6471-443B-B59F-2A7FC2AE655F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7.0\",\"versionEndExcluding\":\"6.7.2\",\"matchCriteriaId\":\"0EA3778C-730B-464C-8023-18CA6AC0B807\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08aca65997fb6f233066883b1f1e653bcb1f26ca\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c5068e442eed063d2f1658e6b6d3c1c6fcf1e588\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ea937f77208323d35ffe2f8d8fc81b00118bfcda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}"
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