{ "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-2024-26863", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26863", "idYear": 2024, "status": "PUBLISHED", "publishedAt": "2024-04-17T10:27:26.252Z", "updatedAt": "2026-10-15T00:38:54.193Z", "importedAt": "2026-10-24T01:57:07.518Z", "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": "hsr: Fix uninit-value access in hsr_get_node()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhsr: Fix uninit-value access in hsr_get_node()\n\nKMSAN reported the following uninit-value access issue [1]:\n\n=====================================================\nBUG: KMSAN: uninit-value in hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246\n hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246\n fill_frame_info net/hsr/hsr_forward.c:577 [inline]\n hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c:615\n hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223\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 packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276\n packet_snd net/packet/af_packet.c:3087 [inline]\n packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n __sys_sendto+0x735/0xa10 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x6d/0x140 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:2787\n packet_alloc_skb net/packet/af_packet.c:2936 [inline]\n packet_snd net/packet/af_packet.c:3030 [inline]\n packet_sendmsg+0x70e8/0x9f30 net/packet/af_packet.c:3119\n sock_sendmsg_nosec net/socket.c:730 [inline]\n __sock_sendmsg net/socket.c:745 [inline]\n __sys_sendto+0x735/0xa10 net/socket.c:2191\n __do_sys_sendto net/socket.c:2203 [inline]\n __se_sys_sendto net/socket.c:2199 [inline]\n __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x63/0x6b\n\nCPU: 1 PID: 5033 Comm: syz-executor334 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\n=====================================================\n\nIf the packet type ID field in the Ethernet header is either ETH_P_PRP or\nETH_P_HSR, but it is not followed by an HSR tag, hsr_get_skb_sequence_nr()\nreads an invalid value as a sequence number. This causes the above issue.\n\nThis patch fixes the issue by returning NULL if the Ethernet header is not\nfollowed by an HSR tag.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "e3b2bfb8ff1810a537b2aa55ba906a6743ed120c" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "889ed056eae7fda85b769a9ab33c093379c45428" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "a809bbfd0e503351d3051317288a70a4569a4949" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "1ed222ca7396938eb1ab2d034f1ba0d8b00a7122" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "39cc316fb3bc5e7c9dc5eed314fe510d119c6862" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "97d2148ea435dff4b4e71817c9032eb321bcd37e" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "09e5cdbe2cc88c3c758927644a3eb02fac317209" }, { "version": "f266a683a4804dc499efc6c2206ef68efed029d0", "status": "affected", "versionType": "git", "lessThan": "ddbec99f58571301679addbc022256970ca3eac6" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "3.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "3.17" }, { "version": "4.19.311", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.273", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.214", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.153", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.83", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.23", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.7.11", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.7.*" }, { "version": "6.8.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.8.*" }, { "version": "6.9", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }