{"id":"CVE-2026-98351","state":"PUBLISHED","title":"wifi: virt_wifi: free skb when disconnected","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status.","publishedAt":"2026-10-06T08:46:39.335Z","updatedAt":"2026-10-19T09:18:02.098Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"38d3a5df85345f158f78b478b265ca906224454e","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"ee053ea35c759135460f03d1c574f4ed08de844a","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"d177eca79e1106834bc423d3969a4a2e3987996a","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"36727a702cf8e3399e3da60d0856378f6afcfb34","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"56469996c10a0240653fc00576b4d33bdfb4cc51","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"4f266738af45675faa0e8afee08c6e780afa8b06","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"46371442847a725cc0df3697fea2eba1dd54b82b","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"f9edf7cf63b96d2b776fca8d258d3c5256e40c8e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/virtual/virt_wifi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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/wireless/virtual/virt_wifi.c"]}],"references":["https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e","https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a","https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a","https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34","https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51","https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06","https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b","https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98351.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98351","state":"PUBLISHED","datePublished":"2026-10-06T08:46:39.335Z","dateUpdated":"2026-10-19T09:18:02.098Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.343Z"},"containers":{"cna":{"title":"wifi: virt_wifi: free skb when disconnected","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: virt_wifi: free skb when disconnected\n\nWhen the simulated link is disconnected, virt_wifi_start_xmit() returns\nNET_XMIT_DROP without freeing the skb. dev_hard_start_xmit() treats this\nreturn value as consumed, so every packet sent while disconnected leaks its\nskb.\n\nFree the skb before returning the drop status."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"38d3a5df85345f158f78b478b265ca906224454e","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"ee053ea35c759135460f03d1c574f4ed08de844a","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"d177eca79e1106834bc423d3969a4a2e3987996a","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"36727a702cf8e3399e3da60d0856378f6afcfb34","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"56469996c10a0240653fc00576b4d33bdfb4cc51","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"4f266738af45675faa0e8afee08c6e780afa8b06","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"46371442847a725cc0df3697fea2eba1dd54b82b","versionType":"git"},{"version":"c7cdba31ed8b87526db978976392802d3f93110c","status":"affected","lessThan":"f9edf7cf63b96d2b776fca8d258d3c5256e40c8e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/virtual/virt_wifi.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.10.271","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.222","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.112","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.54","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.8","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/wireless/virtual/virt_wifi.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/38d3a5df85345f158f78b478b265ca906224454e"},{"url":"https://git.kernel.org/stable/c/ee053ea35c759135460f03d1c574f4ed08de844a"},{"url":"https://git.kernel.org/stable/c/d177eca79e1106834bc423d3969a4a2e3987996a"},{"url":"https://git.kernel.org/stable/c/36727a702cf8e3399e3da60d0856378f6afcfb34"},{"url":"https://git.kernel.org/stable/c/56469996c10a0240653fc00576b4d33bdfb4cc51"},{"url":"https://git.kernel.org/stable/c/4f266738af45675faa0e8afee08c6e780afa8b06"},{"url":"https://git.kernel.org/stable/c/46371442847a725cc0df3697fea2eba1dd54b82b"},{"url":"https://git.kernel.org/stable/c/f9edf7cf63b96d2b776fca8d258d3c5256e40c8e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:18:02.098Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.10.271"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"5.15.222"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"6.18.54"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"7.2.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.0","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}