cve-2024-38616
Vulnerability from cvelistv5
Published
2024-06-19 13:56
Modified
2024-08-02 04:12
Severity
8.2 (High) - cvssV3_1 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Summary
wifi: carl9170: re-fix fortified-memset warning
References
SourceURLTags
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/042a39bb8e0812466327a5102606e88a5a4f8c02
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/066afafc10c9476ee36c47c9062527a17e763901
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0c38c9c460bb8ce8d6f6cf316e0d71a70983ec83
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13857683126e8a6492af73c74d702835f7a2175b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87586467098281f04fa93e59fe3a516b954bddc4
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website

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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: carl9170: re-fix fortified-memset warning\n\nThe carl9170_tx_release() function sometimes triggers a fortified-memset\nwarning in my randconfig builds:\n\nIn file included from include/linux/string.h:254,\n                 from drivers/net/wireless/ath/carl9170/tx.c:40:\nIn function \u0027fortify_memset_chk\u0027,\n    inlined from \u0027carl9170_tx_release\u0027 at drivers/net/wireless/ath/carl9170/tx.c:283:2,\n    inlined from \u0027kref_put\u0027 at include/linux/kref.h:65:3,\n    inlined from \u0027carl9170_tx_put_skb\u0027 at drivers/net/wireless/ath/carl9170/tx.c:342:9:\ninclude/linux/fortify-string.h:493:25: error: call to \u0027__write_overflow_field\u0027 declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]\n  493 |                         __write_overflow_field(p_size_field, size);\n\nKees previously tried to avoid this by using memset_after(), but it seems\nthis does not fully address the problem. I noticed that the memset_after()\nhere is done on a different part of the union (status) than the original\ncast was from (rate_driver_data), which may confuse the compiler.\n\nUnfortunately, the memset_after() trick does not work on driver_rates[]\nbecause that is part of an anonymous struct, and I could not get\nstruct_group() to do this either. Using two separate memset() calls\non the two members does address the warning though."
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    "dateUpdated": "2024-08-02T04:12:26.016Z",
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-38616\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-06-19T14:15:21.403\",\"lastModified\":\"2024-07-03T02:05:18.007\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nwifi: carl9170: re-fix fortified-memset warning\\n\\nThe carl9170_tx_release() function sometimes triggers a fortified-memset\\nwarning in my randconfig builds:\\n\\nIn file included from include/linux/string.h:254,\\n                 from drivers/net/wireless/ath/carl9170/tx.c:40:\\nIn function \u0027fortify_memset_chk\u0027,\\n    inlined from \u0027carl9170_tx_release\u0027 at drivers/net/wireless/ath/carl9170/tx.c:283:2,\\n    inlined from \u0027kref_put\u0027 at include/linux/kref.h:65:3,\\n    inlined from \u0027carl9170_tx_put_skb\u0027 at drivers/net/wireless/ath/carl9170/tx.c:342:9:\\ninclude/linux/fortify-string.h:493:25: error: call to \u0027__write_overflow_field\u0027 declared with attribute warning: detected write beyond size of field (1st parameter); maybe use struct_group()? [-Werror=attribute-warning]\\n  493 |                         __write_overflow_field(p_size_field, size);\\n\\nKees previously tried to avoid this by using memset_after(), but it seems\\nthis does not fully address the problem. I noticed that the memset_after()\\nhere is done on a different part of the union (status) than the original\\ncast was from (rate_driver_data), which may confuse the compiler.\\n\\nUnfortunately, the memset_after() trick does not work on driver_rates[]\\nbecause that is part of an anonymous struct, and I could not get\\nstruct_group() to do this either. Using two separate memset() calls\\non the two members does address the warning though.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: carl9170: volver a corregir la advertencia de memset fortificado La funci\u00f3n carl9170_tx_release() a veces activa una advertencia de memset fortificado en mis compilaciones de randconfig: en el archivo incluido en include/linux/string. h:254, de drivers/net/wireless/ath/carl9170/tx.c:40: en la funci\u00f3n \u0027fortify_memset_chk\u0027, insertado desde \u0027carl9170_tx_release\u0027 en drivers/net/wireless/ath/carl9170/tx.c:283:2 , incluido desde \u0027kref_put\u0027 en include/linux/kref.h:65:3, incluido desde \u0027carl9170_tx_put_skb\u0027 en drivers/net/wireless/ath/carl9170/tx.c:342:9: include/linux/fortify-string .h:493:25: error: llamada a \u0027__write_overflow_field\u0027 declarada con advertencia de atributo: escritura detectada m\u00e1s all\u00e1 del tama\u00f1o del campo (primer par\u00e1metro); \u00bfQuiz\u00e1s usar struct_group()? [-Werror=advertencia-atributo] 493 | __write_overflow_field(p_size_field, tama\u00f1o); Kees anteriormente intent\u00f3 evitar esto usando memset_after(), pero parece que esto no soluciona completamente el problema. Me di cuenta de que memset_after() aqu\u00ed se realiza en una parte diferente de la uni\u00f3n (estado) de la que proven\u00eda la conversi\u00f3n original (rate_driver_data), lo que puede confundir al compilador. Desafortunadamente, el truco memset_after() no funciona en driver_rates[] porque es parte de una estructura an\u00f3nima y tampoco pude lograr que struct_group() hiciera esto. Sin embargo, el uso de dos llamadas memset() separadas en los dos miembros soluciona la advertencia.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"HIGH\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":4.2}]},\"weaknesses\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/042a39bb8e0812466327a5102606e88a5a4f8c02\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/066afafc10c9476ee36c47c9062527a17e763901\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/0c38c9c460bb8ce8d6f6cf316e0d71a70983ec83\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/13857683126e8a6492af73c74d702835f7a2175b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/87586467098281f04fa93e59fe3a516b954bddc4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
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}


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