{ "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-2024-57802", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-57802", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2025-01-15T13:10:25.685Z", "updatedAt": "2026-08-05T11:46:36.902Z", "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": "netrom: check buffer length before accessing it", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: check buffer length before accessing it\n\nSyzkaller reports an uninit value read from ax25cmp when sending raw message\nthrough ieee802154 implementation.\n\n=====================================================\nBUG: KMSAN: uninit-value in ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119\n ax25cmp+0x3a5/0x460 net/ax25/ax25_addr.c:119\n nr_dev_get+0x20e/0x450 net/netrom/nr_route.c:601\n nr_route_frame+0x1a2/0xfc0 net/netrom/nr_route.c:774\n nr_xmit+0x5a/0x1c0 net/netrom/nr_dev.c:144\n __netdev_start_xmit include/linux/netdevice.h:4940 [inline]\n netdev_start_xmit include/linux/netdevice.h:4954 [inline]\n xmit_one net/core/dev.c:3548 [inline]\n dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564\n __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349\n dev_queue_xmit include/linux/netdevice.h:3134 [inline]\n raw_sendmsg+0x654/0xc10 net/ieee802154/socket.c:299\n ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n __sys_sendmsg net/socket.c:2667 [inline]\n __do_sys_sendmsg net/socket.c:2676 [inline]\n __se_sys_sendmsg net/socket.c:2674 [inline]\n __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nUninit was created at:\n slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768\n slab_alloc_node mm/slub.c:3478 [inline]\n kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523\n kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560\n __alloc_skb+0x318/0x740 net/core/skbuff.c:651\n alloc_skb include/linux/skbuff.h:1286 [inline]\n alloc_skb_with_frags+0xc8/0xbd0 net/core/skbuff.c:6334\n sock_alloc_send_pskb+0xa80/0xbf0 net/core/sock.c:2780\n sock_alloc_send_skb include/net/sock.h:1884 [inline]\n raw_sendmsg+0x36d/0xc10 net/ieee802154/socket.c:282\n ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584\n ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638\n __sys_sendmsg net/socket.c:2667 [inline]\n __do_sys_sendmsg net/socket.c:2676 [inline]\n __se_sys_sendmsg net/socket.c:2674 [inline]\n __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nCPU: 0 PID: 5037 Comm: syz-executor166 Not tainted 6.7.0-rc7-syzkaller-00003-gfbafc3e621c3 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\n=====================================================\n\nThis issue occurs because the skb buffer is too small, and it's actual\nallocation is aligned. This hides an actual issue, which is that nr_route_frame\ndoes not validate the buffer size before using it.\n\nFix this issue by checking skb->len before accessing any fields in skb->data.\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "64e9f54a14f2887be8634fb85cd2f13bec18a184" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "cf6befa7c569787f53440274bbed1405fc07738d" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "769e36c2119a51070faf58819c58274f57a088db" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "78a110332ae268d0b005247c3b9a7d703b875c49" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "f647d72245aadce30618f4c8fd3803904418dbec" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "3ba7f80d98d4965349cfcd258dd78418496c1625" }, { "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "status": "affected", "versionType": "git", "lessThan": "a4fd163aed2edd967a244499754dec991d8b4c7d" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.12", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.12" }, { "version": "5.4.289", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.233", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.176", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.124", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.70", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.9", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.13", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }