{"api_version":"1","generated_at":"2026-07-23T15:36:28+00:00","cve":"CVE-2022-50073","urls":{"html":"https://cve.report/CVE-2022-50073","api":"https://cve.report/api/cve/CVE-2022-50073.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2022-50073","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-50073"},"summary":{"title":"net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null\n\nFixes a NULL pointer derefence bug triggered from tap driver.\nWhen tap_get_user calls virtio_net_hdr_to_skb the skb->dev is null\n(in tap.c skb->dev is set after the call to virtio_net_hdr_to_skb)\nvirtio_net_hdr_to_skb calls dev_parse_header_protocol which\nneeds skb->dev field to be valid.\n\nThe line that trigers the bug is in dev_parse_header_protocol\n(dev is at offset 0x10 from skb and is stored in RAX register)\n  if (!dev->header_ops || !dev->header_ops->parse_protocol)\n  22e1:   mov    0x10(%rbx),%rax\n  22e5:\t  mov    0x230(%rax),%rax\n\nSetting skb->dev before the call in tap.c fixes the issue.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000230\nRIP: 0010:virtio_net_hdr_to_skb.constprop.0+0x335/0x410 [tap]\nCode: c0 0f 85 b7 fd ff ff eb d4 41 39 c6 77 cf 29 c6 48 89 df 44 01 f6 e8 7a 79 83 c1 48 85 c0 0f 85 d9 fd ff ff eb b7 48 8b 43 10 <48> 8b 80 30 02 00 00 48 85 c0 74 55 48 8b 40 28 48 85 c0 74 4c 48\nRSP: 0018:ffffc90005c27c38 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff888298f25300 RCX: 0000000000000010\nRDX: 0000000000000005 RSI: ffffc90005c27cb6 RDI: ffff888298f25300\nRBP: ffffc90005c27c80 R08: 00000000ffffffea R09: 00000000000007e8\nR10: ffff88858ec77458 R11: 0000000000000000 R12: 0000000000000001\nR13: 0000000000000014 R14: ffffc90005c27e08 R15: ffffc90005c27cb6\nFS:  0000000000000000(0000) GS:ffff88858ec40000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000230 CR3: 0000000281408006 CR4: 00000000003706e0\nCall Trace:\n tap_get_user+0x3f1/0x540 [tap]\n tap_sendmsg+0x56/0x362 [tap]\n ? get_tx_bufs+0xc2/0x1e0 [vhost_net]\n handle_tx_copy+0x114/0x670 [vhost_net]\n handle_tx+0xb0/0xe0 [vhost_net]\n handle_tx_kick+0x15/0x20 [vhost_net]\n vhost_worker+0x7b/0xc0 [vhost]\n ? vhost_vring_call_reset+0x40/0x40 [vhost]\n kthread+0xfa/0x120\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30","state":"PUBLISHED","assigner":"Linux","published_at":"2025-06-18 11:15:36","updated_at":"2026-06-01 17:16:23"},"problem_types":["CWE-476"],"metrics":[{"version":"3.1","source":"nvd@nist.gov","type":"Primary","score":"5.5","severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"}}],"references":[{"url":"https://git.kernel.org/stable/c/4f61f133f354853bc394ec7d6028adb9b02dd701","name":"https://git.kernel.org/stable/c/4f61f133f354853bc394ec7d6028adb9b02dd701","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/dd29648fcf69339713f2d25f7014ae905dcdfc18","name":"https://git.kernel.org/stable/c/dd29648fcf69339713f2d25f7014ae905dcdfc18","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8f90163f9e013c8fc791aab338aab44a46044cfc","name":"https://git.kernel.org/stable/c/8f90163f9e013c8fc791aab338aab44a46044cfc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/447ba770cfe798925f4923548b367fd49f0ee5f0","name":"https://git.kernel.org/stable/c/447ba770cfe798925f4923548b367fd49f0ee5f0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2022-50073","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50073","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected faa3baa2828c5e1c4374f3e60041f75c64f5fcb6 8f90163f9e013c8fc791aab338aab44a46044cfc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 924a9bc362a5223cd448ca08c3dde21235adc310 447ba770cfe798925f4923548b367fd49f0ee5f0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 924a9bc362a5223cd448ca08c3dde21235adc310 dd29648fcf69339713f2d25f7014ae905dcdfc18 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 924a9bc362a5223cd448ca08c3dde21235adc310 4f61f133f354853bc394ec7d6028adb9b02dd701 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ea3fb2ce5fa794d02135f5c079e05cd6fc3f545d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 54ef8243c3c8e90f1ea5792e6752e021a25c8eb3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected ca278267d6cd9544645731732455b6b20cb0e895 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 99b1d3f74b9ef72c2f74c8e4c078e1bc0706e748 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.10.24 5.10.258 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.14.226 4.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4.19.181 4.20 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.4.106 5.5 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.11.7 5.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.10.258 5.10.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.209 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.19.4 5.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.0 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[{"cve_year":"2022","cve_id":"50073","vulnerable":"1","versionEndIncluding":"","cpe1":"cpe","cpe2":"2.3","cpe3":"o","cpe4":"linux","cpe5":"linux_kernel","cpe6":"*","cpe7":"*","cpe8":"*","cpe9":"*","cpe10":"*","cpe11":"*","cpe12":"*","cpe13":"*"}],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/net/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8f90163f9e013c8fc791aab338aab44a46044cfc","status":"affected","version":"faa3baa2828c5e1c4374f3e60041f75c64f5fcb6","versionType":"git"},{"lessThan":"447ba770cfe798925f4923548b367fd49f0ee5f0","status":"affected","version":"924a9bc362a5223cd448ca08c3dde21235adc310","versionType":"git"},{"lessThan":"dd29648fcf69339713f2d25f7014ae905dcdfc18","status":"affected","version":"924a9bc362a5223cd448ca08c3dde21235adc310","versionType":"git"},{"lessThan":"4f61f133f354853bc394ec7d6028adb9b02dd701","status":"affected","version":"924a9bc362a5223cd448ca08c3dde21235adc310","versionType":"git"},{"status":"affected","version":"ea3fb2ce5fa794d02135f5c079e05cd6fc3f545d","versionType":"git"},{"status":"affected","version":"54ef8243c3c8e90f1ea5792e6752e021a25c8eb3","versionType":"git"},{"status":"affected","version":"ca278267d6cd9544645731732455b6b20cb0e895","versionType":"git"},{"status":"affected","version":"99b1d3f74b9ef72c2f74c8e4c078e1bc0706e748","versionType":"git"},{"lessThan":"5.10.258","status":"affected","version":"5.10.24","versionType":"semver"},{"lessThan":"4.15","status":"affected","version":"4.14.226","versionType":"semver"},{"lessThan":"4.20","status":"affected","version":"4.19.181","versionType":"semver"},{"lessThan":"5.5","status":"affected","version":"5.4.106","versionType":"semver"},{"lessThan":"5.12","status":"affected","version":"5.11.7","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/net/tap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"5.19.*","status":"unaffected","version":"5.19.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.0","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.258","versionStartIncluding":"5.10.24","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.209","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.19.4","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.0","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.226","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.181","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.106","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null\n\nFixes a NULL pointer derefence bug triggered from tap driver.\nWhen tap_get_user calls virtio_net_hdr_to_skb the skb->dev is null\n(in tap.c skb->dev is set after the call to virtio_net_hdr_to_skb)\nvirtio_net_hdr_to_skb calls dev_parse_header_protocol which\nneeds skb->dev field to be valid.\n\nThe line that trigers the bug is in dev_parse_header_protocol\n(dev is at offset 0x10 from skb and is stored in RAX register)\n  if (!dev->header_ops || !dev->header_ops->parse_protocol)\n  22e1:   mov    0x10(%rbx),%rax\n  22e5:\t  mov    0x230(%rax),%rax\n\nSetting skb->dev before the call in tap.c fixes the issue.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000230\nRIP: 0010:virtio_net_hdr_to_skb.constprop.0+0x335/0x410 [tap]\nCode: c0 0f 85 b7 fd ff ff eb d4 41 39 c6 77 cf 29 c6 48 89 df 44 01 f6 e8 7a 79 83 c1 48 85 c0 0f 85 d9 fd ff ff eb b7 48 8b 43 10 <48> 8b 80 30 02 00 00 48 85 c0 74 55 48 8b 40 28 48 85 c0 74 4c 48\nRSP: 0018:ffffc90005c27c38 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff888298f25300 RCX: 0000000000000010\nRDX: 0000000000000005 RSI: ffffc90005c27cb6 RDI: ffff888298f25300\nRBP: ffffc90005c27c80 R08: 00000000ffffffea R09: 00000000000007e8\nR10: ffff88858ec77458 R11: 0000000000000000 R12: 0000000000000001\nR13: 0000000000000014 R14: ffffc90005c27e08 R15: ffffc90005c27cb6\nFS:  0000000000000000(0000) GS:ffff88858ec40000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000230 CR3: 0000000281408006 CR4: 00000000003706e0\nCall Trace:\n tap_get_user+0x3f1/0x540 [tap]\n tap_sendmsg+0x56/0x362 [tap]\n ? get_tx_bufs+0xc2/0x1e0 [vhost_net]\n handle_tx_copy+0x114/0x670 [vhost_net]\n handle_tx+0xb0/0xe0 [vhost_net]\n handle_tx_kick+0x15/0x20 [vhost_net]\n vhost_worker+0x7b/0xc0 [vhost]\n ? vhost_vring_call_reset+0x40/0x40 [vhost]\n kthread+0xfa/0x120\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30"}],"providerMetadata":{"dateUpdated":"2026-06-01T16:03:56.211Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8f90163f9e013c8fc791aab338aab44a46044cfc"},{"url":"https://git.kernel.org/stable/c/447ba770cfe798925f4923548b367fd49f0ee5f0"},{"url":"https://git.kernel.org/stable/c/dd29648fcf69339713f2d25f7014ae905dcdfc18"},{"url":"https://git.kernel.org/stable/c/4f61f133f354853bc394ec7d6028adb9b02dd701"}],"title":"net: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2022-50073","datePublished":"2025-06-18T11:02:17.468Z","dateReserved":"2025-06-18T10:57:27.407Z","dateUpdated":"2026-06-01T16:03:56.211Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2025-06-18 11:15:36","lastModifiedDate":"2026-06-01 17:16:23","problem_types":["CWE-476"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.226","versionEndExcluding":"4.15","matchCriteriaId":"C9608EF4-37A2-4904-B924-93CA34F65EBE"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.181","versionEndExcluding":"4.20","matchCriteriaId":"6CD1844D-5434-4975-BB93-6CD6962BDD86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4.106","versionEndExcluding":"5.5","matchCriteriaId":"65DA83B3-8CE9-4F0B-85BE-72293590844D"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10.24","versionEndExcluding":"5.11","matchCriteriaId":"BBCF7704-6B2C-46CC-AC9A-0CC0AB7DAA73"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11.7","versionEndExcluding":"5.12","matchCriteriaId":"FDFD4195-BBCD-4B40-801F-7EB86B6CD9C6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.12.1","versionEndExcluding":"5.19.4","matchCriteriaId":"5CCE065C-FD94-4855-8B7E-61C5D8CA0736"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:*","matchCriteriaId":"75EB504D-4A83-4C67-9C8D-FD9C6C8EB4CD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:*","matchCriteriaId":"E5371152-7515-4908-BB7E-494805EA5DF2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:*","matchCriteriaId":"D7788E5B-D54E-45BF-9043-2C7B77842FD0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc5:*:*:*:*:*:*","matchCriteriaId":"A935F9F1-DA8B-49F4-BF2B-FA01A92F113E"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc6:*:*:*:*:*:*","matchCriteriaId":"DF0AF673-12B7-4274-9090-411D4939CB62"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc7:*:*:*:*:*:*","matchCriteriaId":"06AE06A6-A0C3-4556-BFFA-3D6E4BAC43C8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.12:rc8:*:*:*:*:*:*","matchCriteriaId":"FCE63934-38CF-4311-AD72-624E86AF3889"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2022","CveId":"50073","Ordinal":"1","Title":"net: tap: NULL pointer derefence in dev_parse_header_protocol wh","CVE":"CVE-2022-50073","Year":"2022"},"notes":[{"CveYear":"2022","CveId":"50073","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tap: NULL pointer derefence in dev_parse_header_protocol when skb->dev is null\n\nFixes a NULL pointer derefence bug triggered from tap driver.\nWhen tap_get_user calls virtio_net_hdr_to_skb the skb->dev is null\n(in tap.c skb->dev is set after the call to virtio_net_hdr_to_skb)\nvirtio_net_hdr_to_skb calls dev_parse_header_protocol which\nneeds skb->dev field to be valid.\n\nThe line that trigers the bug is in dev_parse_header_protocol\n(dev is at offset 0x10 from skb and is stored in RAX register)\n  if (!dev->header_ops || !dev->header_ops->parse_protocol)\n  22e1:   mov    0x10(%rbx),%rax\n  22e5:\t  mov    0x230(%rax),%rax\n\nSetting skb->dev before the call in tap.c fixes the issue.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000230\nRIP: 0010:virtio_net_hdr_to_skb.constprop.0+0x335/0x410 [tap]\nCode: c0 0f 85 b7 fd ff ff eb d4 41 39 c6 77 cf 29 c6 48 89 df 44 01 f6 e8 7a 79 83 c1 48 85 c0 0f 85 d9 fd ff ff eb b7 48 8b 43 10 <48> 8b 80 30 02 00 00 48 85 c0 74 55 48 8b 40 28 48 85 c0 74 4c 48\nRSP: 0018:ffffc90005c27c38 EFLAGS: 00010246\nRAX: 0000000000000000 RBX: ffff888298f25300 RCX: 0000000000000010\nRDX: 0000000000000005 RSI: ffffc90005c27cb6 RDI: ffff888298f25300\nRBP: ffffc90005c27c80 R08: 00000000ffffffea R09: 00000000000007e8\nR10: ffff88858ec77458 R11: 0000000000000000 R12: 0000000000000001\nR13: 0000000000000014 R14: ffffc90005c27e08 R15: ffffc90005c27cb6\nFS:  0000000000000000(0000) GS:ffff88858ec40000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000230 CR3: 0000000281408006 CR4: 00000000003706e0\nCall Trace:\n tap_get_user+0x3f1/0x540 [tap]\n tap_sendmsg+0x56/0x362 [tap]\n ? get_tx_bufs+0xc2/0x1e0 [vhost_net]\n handle_tx_copy+0x114/0x670 [vhost_net]\n handle_tx+0xb0/0xe0 [vhost_net]\n handle_tx_kick+0x15/0x20 [vhost_net]\n vhost_worker+0x7b/0xc0 [vhost]\n ? vhost_vring_call_reset+0x40/0x40 [vhost]\n kthread+0xfa/0x120\n ? kthread_complete_and_exit+0x20/0x20\n ret_from_fork+0x1f/0x30","Type":"Description","Title":"net: tap: NULL pointer derefence in dev_parse_header_protocol wh"}]}}}