CVE-2024-39506
Vulnerability from cvelistv5
Published
2024-07-12 12:20
Modified
2024-12-19 09:07
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet In lio_vf_rep_copy_packet() pg_info->page is compared to a NULL value, but then it is unconditionally passed to skb_add_rx_frag() which looks strange and could lead to null pointer dereference. lio_vf_rep_copy_packet() call trace looks like: octeon_droq_process_packets octeon_droq_fast_process_packets octeon_droq_dispatch_pkt octeon_create_recv_info ...search in the dispatch_list... ->disp_fn(rdisp->rinfo, ...) lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...) In this path there is no code which sets pg_info->page to NULL. So this check looks unneeded and doesn't solve potential problem. But I guess the author had reason to add a check and I have no such card and can't do real test. In addition, the code in the function liquidio_push_packet() in liquidio/lio_core.c does exactly the same. Based on this, I consider the most acceptable compromise solution to adjust this issue by moving skb_add_rx_frag() into conditional scope. Found by Linux Verification Center (linuxtesting.org) with SVACE.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfaPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25eePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4feaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfaPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47cPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25eePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4feaPatch
Impacted products
Vendor Product Version
Linux Linux Version: 4.15
Show details on NVD website

To clipboard 

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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-39506\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-07-12T13:15:12.957\",\"lastModified\":\"2024-11-21T09:27:51.840\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nliquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet\\n\\nIn lio_vf_rep_copy_packet() pg_info-\u003epage is compared to a NULL value,\\nbut then it is unconditionally passed to skb_add_rx_frag() which looks\\nstrange and could lead to null pointer dereference.\\n\\nlio_vf_rep_copy_packet() call trace looks like:\\n\\tocteon_droq_process_packets\\n\\t octeon_droq_fast_process_packets\\n\\t  octeon_droq_dispatch_pkt\\n\\t   octeon_create_recv_info\\n\\t    ...search in the dispatch_list...\\n\\t     -\u003edisp_fn(rdisp-\u003erinfo, ...)\\n\\t      lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)\\nIn this path there is no code which sets pg_info-\u003epage to NULL.\\nSo this check looks unneeded and doesn\u0027t solve potential problem.\\nBut I guess the author had reason to add a check and I have no such card\\nand can\u0027t do real test.\\nIn addition, the code in the function liquidio_push_packet() in\\nliquidio/lio_core.c does exactly the same.\\n\\nBased on this, I consider the most acceptable compromise solution to\\nadjust this issue by moving skb_add_rx_frag() into conditional scope.\\n\\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: liquidio: ajusta una ruta de manejo de puntero NULL en lio_vf_rep_copy_packet En lio_vf_rep_copy_packet() pg_info-\u0026gt;page se compara con un valor NULL, pero luego se pasa incondicionalmente a skb_add_rx_frag() lo cual parece extra\u00f1o y podr\u00eda provocar una desreferencia del puntero nulo. El seguimiento de llamadas de lio_vf_rep_copy_packet() se ve as\u00ed: octeon_droq_process_packets octeon_droq_fast_process_packets octeon_droq_dispatch_pkt octeon_create_recv_info ...buscar en la lista de despacho... -\u0026gt;disp_fn(rdisp-\u0026gt;rinfo, ...) lio_vf_rep_pkt_recv(struct octeon_recv_info *rec v_info, ...) En este camino hay No hay ning\u00fan c\u00f3digo que establezca pg_info-\u0026gt;page en NULL. Por lo tanto, esta verificaci\u00f3n parece innecesaria y no resuelve el problema potencial. Pero supongo que el autor ten\u00eda motivos para agregar un cheque y yo no tengo esa tarjeta y no puedo hacer una prueba real. Adem\u00e1s, el c\u00f3digo de la funci\u00f3n liquidio_push_packet() en liquidio/lio_core.c hace exactamente lo mismo. En base a esto, considero la soluci\u00f3n de compromiso m\u00e1s aceptable para ajustar este problema moviendo skb_add_rx_frag() al alcance condicional. Encontrado por el Centro de verificaci\u00f3n de Linux (linuxtesting.org) con SVACE.\"}],\"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-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.15\",\"versionEndExcluding\":\"4.19.317\",\"matchCriteriaId\":\"CA0C2003-8954-406C-83EB-454FDEC08184\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"4.20\",\"versionEndExcluding\":\"5.4.279\",\"matchCriteriaId\":\"F4E38E58-1B9F-4DF2-AD3D-A8BEAA2959D8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.221\",\"matchCriteriaId\":\"659E1520-6345-41AF-B893-A7C0647585A0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.15.162\",\"matchCriteriaId\":\"10A39ACC-3005-40E8-875C-98A372D1FFD5\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.16\",\"versionEndExcluding\":\"6.1.95\",\"matchCriteriaId\":\"D435765D-2766-44F5-B319-F713A13E35CE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.35\",\"matchCriteriaId\":\"6F019D15-84C0-416B-8C57-7F51B68992F0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.9.6\",\"matchCriteriaId\":\"0ABBBA1D-F79D-4BDB-AA41-D1EDCC4A6975\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"2EBB4392-5FA6-4DA9-9772-8F9C750109FA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"331C2F14-12C7-45D5-893D-8C52EE38EA10\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.10:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"3173713D-909A-4DD3-9DD4-1E171EB057EE\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4fea\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f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  }
}


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