cve-2024-50227
Vulnerability from cvelistv5
Published
2024-11-09 10:14
Modified
2024-12-19 09:35
Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()
KASAN reported following issue:
BUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]
Read of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11
CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387
Tainted: [U]=USER
Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]
Call Trace:
<TASK>
dump_stack_lvl+0x6c/0x90
print_report+0xd1/0x630
kasan_report+0xdb/0x110
__asan_report_load4_noabort+0x14/0x20
tb_retimer_scan+0xffe/0x1550 [thunderbolt]
tb_scan_port+0xa6f/0x2060 [thunderbolt]
tb_handle_hotplug+0x17b1/0x3080 [thunderbolt]
process_one_work+0x626/0x1100
worker_thread+0x6c8/0xfa0
kthread+0x2c8/0x3a0
ret_from_fork+0x3a/0x80
ret_from_fork_asm+0x1a/0x30
This happens because the loop variable still gets incremented by one so
max becomes 3 instead of 2, and this makes the second loop read past the
the array declared on the stack.
Fix this by assigning to max directly in the loop body.
References
Impacted products
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "drivers/thunderbolt/retimer.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "08b2771e9270fbe1ed4fbbe93abe05ac7fe9861d", "status": "affected", "version": "ff6ab055e070d819f51196622e08f8941b6d2a4b", "versionType": "git" }, { "lessThan": "e9e1b20fae7de06ba36dd3f8dba858157bad233d", "status": "affected", "version": "ff6ab055e070d819f51196622e08f8941b6d2a4b", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "drivers/thunderbolt/retimer.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "6.11" }, { "lessThan": "6.11", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "6.11.*", "status": "unaffected", "version": "6.11.7", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.12", "versionType": "original_commit_for_fix" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()\n\nKASAN reported following issue:\n\n BUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]\n Read of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11\n CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387\n Tainted: [U]=USER\n Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x6c/0x90\n print_report+0xd1/0x630\n kasan_report+0xdb/0x110\n __asan_report_load4_noabort+0x14/0x20\n tb_retimer_scan+0xffe/0x1550 [thunderbolt]\n tb_scan_port+0xa6f/0x2060 [thunderbolt]\n tb_handle_hotplug+0x17b1/0x3080 [thunderbolt]\n process_one_work+0x626/0x1100\n worker_thread+0x6c8/0xfa0\n kthread+0x2c8/0x3a0\n ret_from_fork+0x3a/0x80\n ret_from_fork_asm+0x1a/0x30\n\nThis happens because the loop variable still gets incremented by one so\nmax becomes 3 instead of 2, and this makes the second loop read past the\nthe array declared on the stack.\n\nFix this by assigning to max directly in the loop body." } ], "providerMetadata": { "dateUpdated": "2024-12-19T09:35:55.421Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/08b2771e9270fbe1ed4fbbe93abe05ac7fe9861d" }, { "url": "https://git.kernel.org/stable/c/e9e1b20fae7de06ba36dd3f8dba858157bad233d" } ], "title": "thunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()", "x_generator": { "engine": "bippy-5f407fcff5a0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2024-50227", "datePublished": "2024-11-09T10:14:37.905Z", "dateReserved": "2024-10-21T19:36:19.973Z", "dateUpdated": "2024-12-19T09:35:55.421Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-50227\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:08.383\",\"lastModified\":\"2024-11-13T18:39:07.120\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nthunderbolt: Fix KASAN reported stack out-of-bounds read in tb_retimer_scan()\\n\\nKASAN reported following issue:\\n\\n BUG: KASAN: stack-out-of-bounds in tb_retimer_scan+0xffe/0x1550 [thunderbolt]\\n Read of size 4 at addr ffff88810111fc1c by task kworker/u56:0/11\\n CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: G U 6.11.0+ #1387\\n Tainted: [U]=USER\\n Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt]\\n Call Trace:\\n \u003cTASK\u003e\\n dump_stack_lvl+0x6c/0x90\\n print_report+0xd1/0x630\\n kasan_report+0xdb/0x110\\n __asan_report_load4_noabort+0x14/0x20\\n tb_retimer_scan+0xffe/0x1550 [thunderbolt]\\n tb_scan_port+0xa6f/0x2060 [thunderbolt]\\n tb_handle_hotplug+0x17b1/0x3080 [thunderbolt]\\n process_one_work+0x626/0x1100\\n worker_thread+0x6c8/0xfa0\\n kthread+0x2c8/0x3a0\\n ret_from_fork+0x3a/0x80\\n ret_from_fork_asm+0x1a/0x30\\n\\nThis happens because the loop variable still gets incremented by one so\\nmax becomes 3 instead of 2, and this makes the second loop read past the\\nthe array declared on the stack.\\n\\nFix this by assigning to max directly in the loop body.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thunderbolt: Se corrige la lectura fuera de los l\u00edmites de pila informada por KASAN en tb_retimer_scan() KASAN inform\u00f3 el siguiente problema: ERROR: KASAN: pila fuera de los l\u00edmites en tb_retimer_scan+0xffe/0x1550 [thunderbolt] Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff88810111fc1c por la tarea kworker/u56:0/11 CPU: 0 UID: 0 PID: 11 Comm: kworker/u56:0 Tainted: GU 6.11.0+ #1387 Tainted: [U]=USER Workqueue: thunderbolt0 tb_handle_hotplug [thunderbolt] Rastreo de llamadas: dump_stack_lvl+0x6c/0x90 print_report+0xd1/0x630 kasan_report+0xdb/0x110 __asan_report_load4_noabort+0x14/0x20 tb_retimer_scan+0xffe/0x1550 [thunderbolt] tb_scan_port+0xa6f/0x2060 [thunderbolt] tb_handle_hotplug+0x17b1/0x3080 [thunderbolt] process_one_work+0x626/0x1100 worker_thread+0x6c8/0xfa0 kthread+0x2c8/0x3a0 ret_from_fork+0x3a/0x80 ret_from_fork_asm+0x1a/0x30 Esto sucede porque la variable de bucle todav\u00eda se incrementa en uno, por lo que max se convierte en 3 en lugar de 2, y esto hace que el segundo bucle lea m\u00e1s all\u00e1 de la matriz declarada en la pila. Solucione este problema asignando a max directamente en el cuerpo del bucle.\"}],\"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:H/I:N/A:H\",\"baseScore\":7.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.2}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-125\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.11\",\"versionEndExcluding\":\"6.11.7\",\"matchCriteriaId\":\"386941FE-51A4-4893-9EC3-054AD3863E8D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F361E1D-580F-4A2D-A509-7615F73167A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3C95E234-D335-4B6C-96BF-E2CEBD8654ED\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"E0F717D8-3014-4F84-8086-0124B2111379\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"24DBE6C7-2AAE-4818-AED2-E131F153D2FA\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/08b2771e9270fbe1ed4fbbe93abe05ac7fe9861d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e9e1b20fae7de06ba36dd3f8dba858157bad233d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]}]}}" } }
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Sightings
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Nomenclature
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