{ "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-2024-56372", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-56372", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2025-01-11T12:35:47.256Z", "updatedAt": "2026-05-11T20:54:00.801Z", "importedAt": "2026-10-24T01:57:20.494Z", "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: tun: fix tun_napi_alloc_frags()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: tun: fix tun_napi_alloc_frags()\n\nsyzbot reported the following crash [1]\n\nIssue came with the blamed commit. Instead of going through\nall the iov components, we keep using the first one\nand end up with a malformed skb.\n\n[1]\n\nkernel BUG at net/core/skbuff.c:2849 !\nOops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI\nCPU: 0 UID: 0 PID: 6230 Comm: syz-executor132 Not tainted 6.13.0-rc1-syzkaller-00407-g96b6fcc0ee41 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024\n RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848\nCode: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90\nRSP: 0018:ffffc90004cbef30 EFLAGS: 00010293\nRAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00\nRDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000\nRBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c\nR10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50\nR13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80\nFS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f0dca6ead58 CR3: 00000000119da000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \n skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284\n tipc_aead_decrypt net/tipc/crypto.c:894 [inline]\n tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844\n tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109\n tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668\n __netif_receive_skb_list_ptype net/core/dev.c:5720 [inline]\n __netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762\n __netif_receive_skb_list net/core/dev.c:5814 [inline]\n netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905\n gro_normal_list include/net/gro.h:515 [inline]\n napi_complete_done+0x2b5/0x870 net/core/dev.c:6256\n napi_complete include/linux/netdevice.h:567 [inline]\n tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982\n tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057\n do_iter_readv_writev+0x600/0x880\n vfs_writev+0x376/0xba0 fs/read_write.c:1050\n do_writev+0x1b6/0x360 fs/read_write.c:1096\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea", "status": "affected", "versionType": "git", "lessThan": "efe74dd58a72bd987b158142c904b7ef2ad132e2" }, { "version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea", "status": "affected", "versionType": "git", "lessThan": "4f393ea1e2f9c3b646d00572dd92c48b1869c65f" }, { "version": "de4f5fed3f231a8ff4790bf52975f847b95b85ea", "status": "affected", "versionType": "git", "lessThan": "429fde2d81bcef0ebab002215358955704586457" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.4", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.4" }, { "version": "6.6.68", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.7", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }