CVE-2026-90115

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90115", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.787Z", "datePublished": "2026-09-17T16:06:21.376Z", "dateUpdated": "2026-10-19T08:58:13.777Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:58:13.777Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: fix NULL pointer dereference in __xsk_rcv()\n\nIn the __xsk_rcv() multi-buffer path, xsk_buff_alloc() is called in a\nloop without checking its return value. xsk_buff_can_alloc() only\ncounts fill queue entries without validating their addresses, so it\ncan succeed while xsk_buff_alloc() rejects all remaining entries and\nreturns NULL.\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000000\n KASAN: null-ptr-deref in range\n [0x0000000000000000-0x0000000000000007]\n RIP: 0010:__xsk_rcv+0x426/0xc20 (net/xdp/xsk.c:350)\n Call Trace:\n xsk_generic_rcv+0x26d/0x5f0\n xdp_do_generic_redirect+0x3c5/0xcf0\n do_xdp_generic+0x92f/0xe70\n __netif_receive_skb_core.constprop.0+0xf7e/0x2b30\n\nFix this with a two-stage transaction. First allocate and stage all\nbuffers required for the packet, recycling all staged buffers with\nxsk_buff_free() if any allocation fails. Only after this stage\nsucceeds, copy the data, reserve the RX descriptors, and release the\nbuffers in an error-free loop."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/xdp/xsk.c"], "versions": [{"version": "804627751b4281dd95148e7564759145da67855e", "lessThan": "aaebce297efc3e3dccb98a6ff838cfaa47db08db", "status": "affected", "versionType": "git"}, {"version": "804627751b4281dd95148e7564759145da67855e", "lessThan": "60d7d3559ce66e227e195e9463cdfed8077c8659", "status": "affected", "versionType": "git"}, {"version": "804627751b4281dd95148e7564759145da67855e", "lessThan": "214fb79b0379cb0214905632a2537c0c33f594eb", "status": "affected", "versionType": "git"}, {"version": "804627751b4281dd95148e7564759145da67855e", "lessThan": "8341bd3ff126d85bc8c4ed52eedcaa5b1a65f194", "status": "affected", "versionType": "git"}, {"version": "804627751b4281dd95148e7564759145da67855e", "lessThan": "e37b2abca80473e106176e41712a369fd2f72117", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/xdp/xsk.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/aaebce297efc3e3dccb98a6ff838cfaa47db08db"}, {"url": "https://git.kernel.org/stable/c/60d7d3559ce66e227e195e9463cdfed8077c8659"}, {"url": "https://git.kernel.org/stable/c/214fb79b0379cb0214905632a2537c0c33f594eb"}, {"url": "https://git.kernel.org/stable/c/8341bd3ff126d85bc8c4ed52eedcaa5b1a65f194"}, {"url": "https://git.kernel.org/stable/c/e37b2abca80473e106176e41712a369fd2f72117"}], "title": "xsk: fix NULL pointer dereference in __xsk_rcv()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/xdp/xsk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "aaebce297efc3e3dccb98a6ff838cfaa47db08db", "status": "affected", "version": "804627751b4281dd95148e7564759145da67855e", "versionType": "git"}, {"lessThan": "60d7d3559ce66e227e195e9463cdfed8077c8659", "status": "affected", "version": "804627751b4281dd95148e7564759145da67855e", "versionType": "git"}, {"lessThan": "214fb79b0379cb0214905632a2537c0c33f594eb", "status": "affected", "version": "804627751b4281dd95148e7564759145da67855e", "versionType": "git"}, {"lessThan": "8341bd3ff126d85bc8c4ed52eedcaa5b1a65f194", "status": "affected", "version": "804627751b4281dd95148e7564759145da67855e", "versionType": "git"}, {"lessThan": "e37b2abca80473e106176e41712a369fd2f72117", "status": "affected", "version": "804627751b4281dd95148e7564759145da67855e", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/xdp/xsk.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.6"}, {"lessThan": "6.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxsk: fix NULL pointer dereference in __xsk_rcv()\n\nIn the __xsk_rcv() multi-buffer path, xsk_buff_alloc() is called in a\nloop without checking its return value. xsk_buff_can_alloc() only\ncounts fill queue entries without validating their addresses, so it\ncan succeed while xsk_buff_alloc() rejects all remaining entries and\nreturns NULL.\n\n Oops: general protection fault, probably for non-canonical address\n 0xdffffc0000000000\n KASAN: null-ptr-deref in range\n [0x0000000000000000-0x0000000000000007]\n RIP: 0010:__xsk_rcv+0x426/0xc20 (net/xdp/xsk.c:350)\n Call Trace:\n xsk_generic_rcv+0x26d/0x5f0\n xdp_do_generic_redirect+0x3c5/0xcf0\n do_xdp_generic+0x92f/0xe70\n __netif_receive_skb_core.constprop.0+0xf7e/0x2b30\n\nFix this with a two-stage transaction. First allocate and stage all\nbuffers required for the packet, recycling all staged buffers with\nxsk_buff_free() if any allocation fails. Only after this stage\nsucceeds, copy the data, reserve the RX descriptors, and release the\nbuffers in an error-free loop."}], "id": "CVE-2026-90115", "lastModified": "2026-10-19T09:19:00.970", "metrics": {}, "published": "2026-09-17T17:17:03.623", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/214fb79b0379cb0214905632a2537c0c33f594eb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/60d7d3559ce66e227e195e9463cdfed8077c8659"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8341bd3ff126d85bc8c4ed52eedcaa5b1a65f194"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/aaebce297efc3e3dccb98a6ff838cfaa47db08db"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e37b2abca80473e106176e41712a369fd2f72117"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[804627751b4281dd95148e7564759145da67855e,aaebce297efc3e3dccb98a6ff838cfaa47db08db)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[804627751b4281dd95148e7564759145da67855e,60d7d3559ce66e227e195e9463cdfed8077c8659)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[804627751b4281dd95148e7564759145da67855e,214fb79b0379cb0214905632a2537c0c33f594eb)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[804627751b4281dd95148e7564759145da67855e,8341bd3ff126d85bc8c4ed52eedcaa5b1a65f194)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[804627751b4281dd95148e7564759145da67855e,e37b2abca80473e106176e41712a369fd2f72117)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.3-rc1,*)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T15:30:11.373002+00:00", "updated": "2026-09-18T22:45:15.090660+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-476"]}