{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2023-53433", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53433", "idYear": 2023, "status": "PUBLISHED", "publishedAt": "2025-09-18T16:04:13.126Z", "updatedAt": "2026-05-23T15:28:55.105Z", "importedAt": "2026-10-24T01:57:03.413Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "net: add vlan_get_protocol_and_depth() helper", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add vlan_get_protocol_and_depth() helper\n\nBefore blamed commit, pskb_may_pull() was used instead\nof skb_header_pointer() in __vlan_get_protocol() and friends.\n\nFew callers depended on skb->head being populated with MAC header,\nsyzbot caught one of them (skb_mac_gso_segment())\n\nAdd vlan_get_protocol_and_depth() to make the intent clearer\nand use it where sensible.\n\nThis is a more generic fix than commit e9d3f80935b6\n(\"net/af_packet: make sure to pull mac header\") which was\ndealing with a similar issue.\n\nkernel BUG at include/linux/skbuff.h:2655 !\ninvalid opcode: 0000 [#1] SMP KASAN\nCPU: 0 PID: 1441 Comm: syz-executor199 Not tainted 6.1.24-syzkaller #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023\nRIP: 0010:__skb_pull include/linux/skbuff.h:2655 [inline]\nRIP: 0010:skb_mac_gso_segment+0x68f/0x6a0 net/core/gro.c:136\nCode: fd 48 8b 5c 24 10 44 89 6b 70 48 c7 c7 c0 ae 0d 86 44 89 e6 e8 a1 91 d0 00 48 c7 c7 00 af 0d 86 48 89 de 31 d2 e8 d1 4a e9 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 55 48 89 e5 41\nRSP: 0018:ffffc90001bd7520 EFLAGS: 00010286\nRAX: ffffffff8469736a RBX: ffff88810f31dac0 RCX: ffff888115a18b00\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\nRBP: ffffc90001bd75e8 R08: ffffffff84697183 R09: fffff5200037adf9\nR10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000012\nR13: 000000000000fee5 R14: 0000000000005865 R15: 000000000000fed7\nFS: 000055555633f300(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000020000000 CR3: 0000000116fea000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n\n[] __skb_gso_segment+0x32d/0x4c0 net/core/dev.c:3419\n[] skb_gso_segment include/linux/netdevice.h:4819 [inline]\n[] validate_xmit_skb+0x3aa/0xee0 net/core/dev.c:3725\n[] __dev_queue_xmit+0x1332/0x3300 net/core/dev.c:4313\n[] dev_queue_xmit+0x17/0x20 include/linux/netdevice.h:3029\n[] packet_snd net/packet/af_packet.c:3111 [inline]\n[] packet_sendmsg+0x49d2/0x6470 net/packet/af_packet.c:3142\n[] sock_sendmsg_nosec net/socket.c:716 [inline]\n[] sock_sendmsg net/socket.c:736 [inline]\n[] __sys_sendto+0x472/0x5f0 net/socket.c:2139\n[] __do_sys_sendto net/socket.c:2151 [inline]\n[] __se_sys_sendto net/socket.c:2147 [inline]\n[] __x64_sys_sendto+0xe5/0x100 net/socket.c:2147\n[] do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n[] do_syscall_64+0x2f/0x50 arch/x86/entry/common.c:80\n[] entry_SYSCALL_64_after_hwframe+0x63/0xcd", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "30d015f5ecd9ce5706ad18a4a0649f364e3e6f7b", "status": "affected", "versionType": "git", "lessThan": "4188c5269475ac59d467b5814c5df02756f6d907" }, { "version": "469aceddfa3ed16e17ee30533fae45e90f62efd8", "status": "affected", "versionType": "git", "lessThan": "34a5ee69ec6273f0aee79e7ce4d14afc83ca8122" }, { "version": "469aceddfa3ed16e17ee30533fae45e90f62efd8", "status": "affected", "versionType": "git", "lessThan": "9dd9ffe118415b4ac1cebac43443000072bc8f46" }, { "version": "469aceddfa3ed16e17ee30533fae45e90f62efd8", "status": "affected", "versionType": "git", "lessThan": "55caf900e13cd04466def08173a14b41d18c19c3" }, { "version": "469aceddfa3ed16e17ee30533fae45e90f62efd8", "status": "affected", "versionType": "git", "lessThan": "15eaeb8941f12fcc2713c4bf6eb8f76a37854b4d" }, { "version": "469aceddfa3ed16e17ee30533fae45e90f62efd8", "status": "affected", "versionType": "git", "lessThan": "4063384ef762cc5946fc7a3f89879e76c6ec51e2" }, { "version": "bb7b26278b384dad1423101dc69157b63968ed1c", "status": "affected", "versionType": "git" }, { "version": "a890a3d3115da196ff25599fe900f34016a4ef49", "status": "affected", "versionType": "git" }, { "version": "502bbb8480c38ae6caa4f890b98db3b2a4ae919a", "status": "affected", "versionType": "git" }, { "version": "d4d0e6c07bcd17d704afe64e10382ffc5d342765", "status": "affected", "versionType": "git" }, { "version": "754056791f66153890825c2626174aaa7fe82d16", "status": "affected", "versionType": "git" }, { "version": "5.4.53", "status": "affected", "versionType": "semver", "lessThan": "5.4.244" }, { "version": "4.4.248", "status": "affected", "versionType": "semver", "lessThan": "4.5" }, { "version": "4.9.248", "status": "affected", "versionType": "semver", "lessThan": "4.10" }, { "version": "4.14.212", "status": "affected", "versionType": "semver", "lessThan": "4.15" }, { "version": "4.19.134", "status": "affected", "versionType": "semver", "lessThan": "4.20" }, { "version": "5.7.10", "status": "affected", "versionType": "semver", "lessThan": "5.8" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "5.8", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "5.8" }, { "version": "5.4.244", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.181", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.113", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.30", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.3.4", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.3.*" }, { "version": "6.4", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }