{"id":"CVE-2026-99057","aliases":[],"cve":{"records":[{"id":"CVE-2026-99057","source":"Linux","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-09-25T10:25:14.388Z","published":"2026-10-23T12:22:44.683Z","modified":"2026-10-30T12:41:23.425Z"}],"publishers":[{"name":"Linux","role":"CNA","organizationId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","modified":"2026-10-30T12:41:23.425Z"}],"references":[{"url":"https://git.kernel.org/stable/c/6e6bd1051daabc327233c3ca3d00613fc6783c8e","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/0cf0a25a639c535146c5eb4480d256995721aed6","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/53a131eb2a998c77e2851401b32b712d6c6e8487","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/5051df031144753d3e18862514969146b601d089","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/99011a11c97340ef7290df7dc199305c73fab2f2","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/086944c1c2cbb683543bc3ff08637847b03c8009","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/84e3ea6502b5f14ce8d499d0b6e0e38386274cf0","tags":[],"source":"Linux"},{"url":"https://git.kernel.org/stable/c/93ccaf1c26e2133396173b76a071e59024daa622","tags":[],"source":"Linux"}],"weaknesses":[],"applicability":[{"source":"Linux","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.10.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"5.15.224"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"6.18.57"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"7.2.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.159"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.73"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.18.11"}]}]}]}],"prioritization":[]},"title":"xen/netfront: don't leak the skb when xennet_fill_frags() fails","titleSource":"Linux","descriptionSource":"Linux","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxen/netfront: don't leak the skb when xennet_fill_frags() fails\n\nWhen a response chain has more slots than fit in the skb's frags,\nxennet_fill_frags() returns an error and xennet_poll() jumps to its\nerror path.  That path moves what's left on tmpq to errq to be freed,\nbut the skb being filled was already dequeued from tmpq, so it's never\nfreed.  Each chain that overflows leaks the skb and the pages attached\nto it as frags, and the backend decides how many slots it sends.\n\nPut the skb back on tmpq before taking the error path, like the\nxennet_set_skb_gso() failure just above it does.","score":null,"severity":"unknown","published":"2026-10-23T12:22:44.683Z","modified":"2026-10-30T12:41:23.425Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"6e6bd1051daabc327233c3ca3d00613fc6783c8e","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"0cf0a25a639c535146c5eb4480d256995721aed6","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"53a131eb2a998c77e2851401b32b712d6c6e8487","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"5051df031144753d3e18862514969146b601d089","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"99011a11c97340ef7290df7dc199305c73fab2f2","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"086944c1c2cbb683543bc3ff08637847b03c8009","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"84e3ea6502b5f14ce8d499d0b6e0e38386274cf0","versionType":"git"},{"version":"ad4f15dc2c70b1de5e0a64d27335962fbc9cf71c","status":"affected","lessThan":"93ccaf1c26e2133396173b76a071e59024daa622","versionType":"git"},{"version":"bd1468048aa3e2af865da92990539946d4483989","status":"affected","versionType":"git"},{"version":"29a6193c0d74390c004808441061ac1812cf6f51","status":"affected","versionType":"git"},{"version":"7eced4478f4ec6ff0a603ddfd6e24a5d3831fca7","status":"affected","versionType":"git"},{"version":"b73a161e9beff24bf1803ba393dff95a255268f9","status":"affected","versionType":"git"},{"version":"4.4.159","status":"affected","lessThan":"4.5","versionType":"semver"},{"version":"4.9.130","status":"affected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.73","status":"affected","lessThan":"4.15","versionType":"semver"},{"version":"4.18.11","status":"affected","lessThan":"4.19","versionType":"semver"}],"defaultStatus":"unaffected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99057"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"4.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.19","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":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.11","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","cpes":[],"source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99057"}],"remediation":[],"references":["https://git.kernel.org/stable/c/6e6bd1051daabc327233c3ca3d00613fc6783c8e","https://git.kernel.org/stable/c/0cf0a25a639c535146c5eb4480d256995721aed6","https://git.kernel.org/stable/c/53a131eb2a998c77e2851401b32b712d6c6e8487","https://git.kernel.org/stable/c/5051df031144753d3e18862514969146b601d089","https://git.kernel.org/stable/c/99011a11c97340ef7290df7dc199305c73fab2f2","https://git.kernel.org/stable/c/086944c1c2cbb683543bc3ff08637847b03c8009","https://git.kernel.org/stable/c/84e3ea6502b5f14ce8d499d0b6e0e38386274cf0","https://git.kernel.org/stable/c/93ccaf1c26e2133396173b76a071e59024daa622"],"sources":[{"name":"CVE","id":"CVE-2026-99057","modified":"2026-10-30T12:41:23.425Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99057"}],"assessments":[],"sourceAffected":[],"observedAt":"2026-10-30T13:11:31.381Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:10:30.655Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[],"aiSummary":null}