{"id":"CVE-2026-98375","state":"PUBLISHED","title":"xen/netfront: drop RX packets with a short Ethernet header","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netfront: drop RX packets with a short Ethernet header\n\nhandle_incoming_queue() pulls pull_to bytes into the head before\ncalling eth_type_trans().  pull_to is the length of the first RX slot,\ncapped at RX_COPY_THRESHOLD, and that length comes from the backend.\nNothing checks it against ETH_HLEN.\n\nIf the first slot is shorter than ETH_HLEN and more slots follow, the\nhead ends up shorter than an Ethernet header while skb->len is longer,\nand eth_type_trans() BUG()s in __skb_pull().  If the whole packet is\nshorter than ETH_HLEN, eth_type_trans() reads the header past the end\nof the data instead.\n\nPull at least ETH_HLEN, and drop the packet if that fails, which also\ndrops packets too short to hold an Ethernet header.  This also checks\nthe return value of the pull, which was ignored.","publishedAt":"2026-10-09T07:10:45.930Z","updatedAt":"2026-10-30T12:38:04.686Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"fd5481dd75ea879c53c17882cbb065ad3bd6b766","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"9cb8813d157b4d15103d3b34c635620f36df4173","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"57508819da8dc1cf5a2c3b64570aa02cc5ae28b6","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"0542d213253eec18785a24b603b28bd385dfe4a5","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"236a17caebcff31f75bec5ff4136bde2de944e40","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"72d2f54367895d6e236b9857892e2e6b6036e067","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"089e58805c452e52179482b1025a8e309a57f801","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/xen-netfront.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/xen-netfront.c"]}],"references":["https://git.kernel.org/stable/c/fd5481dd75ea879c53c17882cbb065ad3bd6b766","https://git.kernel.org/stable/c/9cb8813d157b4d15103d3b34c635620f36df4173","https://git.kernel.org/stable/c/57508819da8dc1cf5a2c3b64570aa02cc5ae28b6","https://git.kernel.org/stable/c/0542d213253eec18785a24b603b28bd385dfe4a5","https://git.kernel.org/stable/c/236a17caebcff31f75bec5ff4136bde2de944e40","https://git.kernel.org/stable/c/72d2f54367895d6e236b9857892e2e6b6036e067","https://git.kernel.org/stable/c/e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e","https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801","http://xenbits.xen.org/xsa/advisory-522.html","http://www.openwall.com/lists/oss-security/2026/10/09/3"],"weaknesses":[],"ingestedAt":"2026-10-30T12:58:04.520Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98375.json","commit":"1f312381e38164a43607eebab851b151dd16861e","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98375","state":"PUBLISHED","datePublished":"2026-10-09T07:10:45.930Z","dateUpdated":"2026-10-30T12:38:04.686Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.345Z"},"containers":{"cna":{"title":"xen/netfront: drop RX packets with a short Ethernet header","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netfront: drop RX packets with a short Ethernet header\n\nhandle_incoming_queue() pulls pull_to bytes into the head before\ncalling eth_type_trans().  pull_to is the length of the first RX slot,\ncapped at RX_COPY_THRESHOLD, and that length comes from the backend.\nNothing checks it against ETH_HLEN.\n\nIf the first slot is shorter than ETH_HLEN and more slots follow, the\nhead ends up shorter than an Ethernet header while skb->len is longer,\nand eth_type_trans() BUG()s in __skb_pull().  If the whole packet is\nshorter than ETH_HLEN, eth_type_trans() reads the header past the end\nof the data instead.\n\nPull at least ETH_HLEN, and drop the packet if that fails, which also\ndrops packets too short to hold an Ethernet header.  This also checks\nthe return value of the pull, which was ignored."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"fd5481dd75ea879c53c17882cbb065ad3bd6b766","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"9cb8813d157b4d15103d3b34c635620f36df4173","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"57508819da8dc1cf5a2c3b64570aa02cc5ae28b6","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"0542d213253eec18785a24b603b28bd385dfe4a5","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"236a17caebcff31f75bec5ff4136bde2de944e40","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"72d2f54367895d6e236b9857892e2e6b6036e067","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e","versionType":"git"},{"version":"0d160211965b79de989cf2d170985abeb8da5ec6","status":"affected","lessThan":"089e58805c452e52179482b1025a8e309a57f801","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/xen-netfront.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.23","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.23","versionType":"semver"},{"version":"5.10.273","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.224","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/xen-netfront.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/fd5481dd75ea879c53c17882cbb065ad3bd6b766"},{"url":"https://git.kernel.org/stable/c/9cb8813d157b4d15103d3b34c635620f36df4173"},{"url":"https://git.kernel.org/stable/c/57508819da8dc1cf5a2c3b64570aa02cc5ae28b6"},{"url":"https://git.kernel.org/stable/c/0542d213253eec18785a24b603b28bd385dfe4a5"},{"url":"https://git.kernel.org/stable/c/236a17caebcff31f75bec5ff4136bde2de944e40"},{"url":"https://git.kernel.org/stable/c/72d2f54367895d6e236b9857892e2e6b6036e067"},{"url":"https://git.kernel.org/stable/c/e2b721bc30f40ffa7ccc36a56d4e8990b8c0538e"},{"url":"https://git.kernel.org/stable/c/089e58805c452e52179482b1025a8e309a57f801"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:38:04.686Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://xenbits.xen.org/xsa/advisory-522.html"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/09/3"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-10-09T11:08:05.387Z"}}]}}}