cve-2024-38385
Vulnerability from cvelistv5
Published
2024-06-25 14:22
Modified
2024-12-19 09:03
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: genirq/irqdesc: Prevent use-after-free in irq_find_at_or_after() irq_find_at_or_after() dereferences the interrupt descriptor which is returned by mt_find() while neither holding sparse_irq_lock nor RCU read lock, which means the descriptor can be freed between mt_find() and the dereference: CPU0 CPU1 desc = mt_find() delayed_free_desc(desc) irq_desc_get_irq(desc) The use-after-free is reported by KASAN: Call trace: irq_get_next_irq+0x58/0x84 show_stat+0x638/0x824 seq_read_iter+0x158/0x4ec proc_reg_read_iter+0x94/0x12c vfs_read+0x1e0/0x2c8 Freed by task 4471: slab_free_freelist_hook+0x174/0x1e0 __kmem_cache_free+0xa4/0x1dc kfree+0x64/0x128 irq_kobj_release+0x28/0x3c kobject_put+0xcc/0x1e0 delayed_free_desc+0x14/0x2c rcu_do_batch+0x214/0x720 Guard the access with a RCU read lock section.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c7891812d85500ae2ca4051fa5683fcf29930d8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b84a8aba806261d2f759ccedf4a2a6a80a5e55baPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d084aa022f84319f8079e30882cbcbc026af9f21Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/1c7891812d85500ae2ca4051fa5683fcf29930d8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b84a8aba806261d2f759ccedf4a2a6a80a5e55baPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d084aa022f84319f8079e30882cbcbc026af9f21Patch
Impacted products
Vendor Product Version
Linux Linux Version: 6.5
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38385\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-25T15:15:13.487\",\"lastModified\":\"2024-11-21T09:25:33.840\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ngenirq/irqdesc: Prevent use-after-free in irq_find_at_or_after()\\n\\nirq_find_at_or_after() dereferences the interrupt descriptor which is\\nreturned by mt_find() while neither holding sparse_irq_lock nor RCU read\\nlock, which means the descriptor can be freed between mt_find() and the\\ndereference:\\n\\n    CPU0                            CPU1\\n    desc = mt_find()\\n                                    delayed_free_desc(desc)\\n    irq_desc_get_irq(desc)\\n\\nThe use-after-free is reported by KASAN:\\n\\n    Call trace:\\n     irq_get_next_irq+0x58/0x84\\n     show_stat+0x638/0x824\\n     seq_read_iter+0x158/0x4ec\\n     proc_reg_read_iter+0x94/0x12c\\n     vfs_read+0x1e0/0x2c8\\n\\n    Freed by task 4471:\\n     slab_free_freelist_hook+0x174/0x1e0\\n     __kmem_cache_free+0xa4/0x1dc\\n     kfree+0x64/0x128\\n     irq_kobj_release+0x28/0x3c\\n     kobject_put+0xcc/0x1e0\\n     delayed_free_desc+0x14/0x2c\\n     rcu_do_batch+0x214/0x720\\n\\nGuard the access with a RCU read lock section.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: genirq/irqdesc: Impide el use-after-free en irq_find_at_or_after() irq_find_at_or_after() elimina la referencia al descriptor de interrupci\u00f3n que devuelve mt_find() mientras no mantiene sparse_irq_lock ni el bloqueo de lectura de RCU, lo que significa que el descriptor se puede liberar entre mt_find() y la desreferencia: CPU0 CPU1 desc = mt_find() delay_free_desc(desc) irq_desc_get_irq(desc) KASAN informa el use-after-free: Rastreo de llamadas: irq_get_next_irq+0x58/0x84 show_stat+ 0x638/0x824 seq_read_iter+0x158/0x4ec proc_reg_read_iter+0x94/0x12c vfs_read+0x1e0/0x2c8 Liberado por la tarea 4471: slab_free_freelist_hook+0x174/0x1e0 __kmem_cache_free+0xa4/0x1dc x64/0x128 irq_kobj_release+0x28/0x3c kobject_put+0xcc/0x1e0 retardado_free_desc+ 0x14/0x2c rcu_do_batch+0x214/0x720 Protege el acceso con una secci\u00f3n de bloqueo de lectura de RCU.\"}],\"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\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.5\",\"versionEndExcluding\":\"6.6.34\",\"matchCriteriaId\":\"02FF289D-5D15-411D-9F0F-33D71A6FFC05\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.5\",\"matchCriteriaId\":\"8366481F-770F-4850-9D0F-2977BD97D5C5\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1c7891812d85500ae2ca4051fa5683fcf29930d8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b84a8aba806261d2f759ccedf4a2a6a80a5e55ba\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d084aa022f84319f8079e30882cbcbc026af9f21\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/1c7891812d85500ae2ca4051fa5683fcf29930d8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/b84a8aba806261d2f759ccedf4a2a6a80a5e55ba\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d084aa022f84319f8079e30882cbcbc026af9f21\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}"
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}


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