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{
"id": "CVE-2024-41087",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2024-07-29T16:15:04.120",
"lastModified": "2024-11-21T09:32:13.063",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-core: Fix double free on error\n\nIf e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump\nto the err_out label, which will call devres_release_group().\ndevres_release_group() will trigger a call to ata_host_release().\nata_host_release() calls kfree(host), so executing the kfree(host) in\nata_host_alloc() will lead to a double free:\n\nkernel BUG at mm/slub.c:553!\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\nRIP: 0010:kfree+0x2cf/0x2f0\nCode: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da\nRSP: 0018:ffffc90000f377f0 EFLAGS: 00010246\nRAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320\nRDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0\nRBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000\nR10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780\nR13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006\nFS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n <TASK>\n ? __die_body.cold+0x19/0x27\n ? die+0x2e/0x50\n ? do_trap+0xca/0x110\n ? do_error_trap+0x6a/0x90\n ? kfree+0x2cf/0x2f0\n ? exc_invalid_op+0x50/0x70\n ? kfree+0x2cf/0x2f0\n ? asm_exc_invalid_op+0x1a/0x20\n ? ata_host_alloc+0xf5/0x120 [libata]\n ? ata_host_alloc+0xf5/0x120 [libata]\n ? kfree+0x2cf/0x2f0\n ata_host_alloc+0xf5/0x120 [libata]\n ata_host_alloc_pinfo+0x14/0xa0 [libata]\n ahci_init_one+0x6c9/0xd20 [ahci]\n\nEnsure that we will not call kfree(host) twice, by performing the kfree()\nonly if the devres_open_group() call failed."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ata: libata-core: corrige double free en caso de error Si, por ejemplo, la llamada ata_port_alloc() en ata_host_alloc() falla, saltaremos a la etiqueta err_out, que llamar\u00e1 a devres_release_group() . devres_release_group() activar\u00e1 una llamada a ata_host_release(). ata_host_release() llama a kfree(host), por lo que ejecutar kfree(host) en ata_host_alloc() provocar\u00e1 un doble error de kernel free: en mm/slub.c:553. Ups: c\u00f3digo de operaci\u00f3n no v\u00e1lido: 0000 [#1] PREEMPT SMP NOPTI CPU: 11 PID: 599 Comm: (udev-worker) No contaminado 6.10.0-rc5 #47 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 01/04/2014 RIP: 0010:kfree+0x2cf/0x2f0 C\u00f3digo: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da RSP : 0018:ffffc90000f377f0 EFLAGS: 00010246 RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320 RDX: 000000000000400b RSI: ffffffffc02c 9de5 RDI: ffff888112b1f2c0 RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000f37610 R11: 617461203a736b6e : ffffea00044ac780 R13: ffff888100046400 R14: ffffffffc02c9de5 R15 : 0000000000000006 FS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:00000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050 033 CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0 PKRU: 55555554 Seguimiento de llamadas: ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x6a/0x90? kfree+0x2cf/0x2f0 ? exc_invalid_op+0x50/0x70? kfree+0x2cf/0x2f0 ? asm_exc_invalid_op+0x1a/0x20? ata_host_alloc+0xf5/0x120 [libata]? ata_host_alloc+0xf5/0x120 [libata]? kfree+0x2cf/0x2f0 ata_host_alloc+0xf5/0x120 [libata] ata_host_alloc_pinfo+0x14/0xa0 [libata] ahci_init_one+0x6c9/0xd20 [ahci] Aseg\u00farese de que no llamaremos a kfree(host) dos veces, realizando kfree() solo si La llamada a devres_open_group() fall\u00f3."
}
],
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{
"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:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"attackVector": "LOCAL",
"attackComplexity": "LOW",
"privilegesRequired": "LOW",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9
}
]
},
"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-415"
}
]
}
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