| { |
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| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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->page 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 ->disp_fn(rdisp->rinfo, ...)\n\t lio_vf_rep_pkt_recv(struct octeon_recv_info *recv_info, ...)\nIn this path there is no code which sets pg_info->page to NULL.\nSo this check looks unneeded and doesn't solve potential problem.\nBut I guess the author had reason to add a check and I have no such card\nand can't 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." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c" |
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| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c" |
| ], |
| "versions": [ |
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| "version": "4.15", |
| "status": "affected" |
| }, |
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| }, |
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| }, |
| { |
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| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
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| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4fea" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349" |
| } |
| ], |
| "title": "liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-39506", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
