{"id":"CVE-2024-39506","state":"PUBLISHED","title":"liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet","description":"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.","publishedAt":"2024-07-12T12:20:38.298Z","updatedAt":"2026-05-11T20:21:51.891Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"dcc7440f32c7a26b067aff6e7d931ec593024a79","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"cbf18d8128a753cb632bef39470d19befd9c7347","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"a86490a3712cc513113440a606a0e77130abd47c","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"fd2b613bc4c508e55c1221c6595bb889812a4fea","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"a6f4d0ec170a46b5f453cacf55dff5989b42bbfa","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"c44711b78608c98a3e6b49ce91678cd0917d5349","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.317","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.279","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.221","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.162","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.95","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.35","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.6","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"]}],"references":["https://git.kernel.org/stable/c/87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2","https://git.kernel.org/stable/c/dcc7440f32c7a26b067aff6e7d931ec593024a79","https://git.kernel.org/stable/c/cbf18d8128a753cb632bef39470d19befd9c7347","https://git.kernel.org/stable/c/a86490a3712cc513113440a606a0e77130abd47c","https://git.kernel.org/stable/c/f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee","https://git.kernel.org/stable/c/fd2b613bc4c508e55c1221c6595bb889812a4fea","https://git.kernel.org/stable/c/a6f4d0ec170a46b5f453cacf55dff5989b42bbfa","https://git.kernel.org/stable/c/c44711b78608c98a3e6b49ce91678cd0917d5349","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/39xxx/CVE-2024-39506.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-39506","state":"PUBLISHED","datePublished":"2024-07-12T12:20:38.298Z","dateUpdated":"2026-05-11T20:21:51.891Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-06-25T14:23:23.752Z"},"containers":{"cna":{"title":"liquidio: Adjust a NULL pointer handling path in lio_vf_rep_copy_packet","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":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"87d6bdc006f0cbf297a3b2ad6e40ede4c3ee5dc2","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"dcc7440f32c7a26b067aff6e7d931ec593024a79","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"cbf18d8128a753cb632bef39470d19befd9c7347","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"a86490a3712cc513113440a606a0e77130abd47c","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"f1ab15a09492a5ae8ab1e2c35ba2cf9e150d25ee","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"fd2b613bc4c508e55c1221c6595bb889812a4fea","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"a6f4d0ec170a46b5f453cacf55dff5989b42bbfa","versionType":"git"},{"version":"1f233f327913f3dee0602cba9c64df1903772b55","status":"affected","lessThan":"c44711b78608c98a3e6b49ce91678cd0917d5349","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.15","versionType":"semver"},{"version":"4.19.317","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.279","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.221","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.162","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.95","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.35","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.9.6","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cavium/liquidio/lio_vf_rep.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T20:21:51.891Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"4.19.317"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.4.279"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.10.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"5.15.162"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.1.95"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.6.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.9.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.15","versionEndExcluding":"6.10"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE 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