{"dataType":"CVE_RECORD","cveMetadata":{"cveId":"CVE-2024-26863","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-02-19T14:20:24.184Z","datePublished":"2024-04-17T10:27:26.252Z","dateUpdated":"2026-05-12T11:49:45.167Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T20:05:35.465Z"},"descriptions":[{"lang":"en","value":"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":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/hsr/hsr_framereg.c"],"versions":[{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"e3b2bfb8ff1810a537b2aa55ba906a6743ed120c","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"889ed056eae7fda85b769a9ab33c093379c45428","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"a809bbfd0e503351d3051317288a70a4569a4949","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"1ed222ca7396938eb1ab2d034f1ba0d8b00a7122","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"39cc316fb3bc5e7c9dc5eed314fe510d119c6862","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"97d2148ea435dff4b4e71817c9032eb321bcd37e","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"09e5cdbe2cc88c3c758927644a3eb02fac317209","status":"affected","versionType":"git"},{"version":"f266a683a4804dc499efc6c2206ef68efed029d0","lessThan":"ddbec99f58571301679addbc022256970ca3eac6","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/hsr/hsr_framereg.c"],"versions":[{"version":"3.17","status":"affected"},{"version":"0","lessThan":"3.17","status":"unaffected","versionType":"semver"},{"version":"4.19.311","lessThanOrEqual":"4.19.*","status":"unaffected","versionType":"semver"},{"version":"5.4.273","lessThanOrEqual":"5.4.*","status":"unaffected","versionType":"semver"},{"version":"5.10.214","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.153","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.83","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.23","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.7.11","lessThanOrEqual":"6.7.*","status":"unaffected","versionType":"semver"},{"version":"6.8.2","lessThanOrEqual":"6.8.*","status":"unaffected","versionType":"semver"},{"version":"6.9","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"4.19.311"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.4.273"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.10.214"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"5.15.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.1.83"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.6.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.7.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.8.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.17","versionEndExcluding":"6.9"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e3b2bfb8ff1810a537b2aa55ba906a6743ed120c"},{"url":"https://git.kernel.org/stable/c/889ed056eae7fda85b769a9ab33c093379c45428"},{"url":"https://git.kernel.org/stable/c/7fb2d4d6bb1c85f7a23aace0ed6c86a95dea792a"},{"url":"https://git.kernel.org/stable/c/a809bbfd0e503351d3051317288a70a4569a4949"},{"url":"https://git.kernel.org/stable/c/1ed222ca7396938eb1ab2d034f1ba0d8b00a7122"},{"url":"https://git.kernel.org/stable/c/39cc316fb3bc5e7c9dc5eed314fe510d119c6862"},{"url":"https://git.kernel.org/stable/c/97d2148ea435dff4b4e71817c9032eb321bcd37e"},{"url":"https://git.kernel.org/stable/c/09e5cdbe2cc88c3c758927644a3eb02fac317209"},{"url":"https://git.kernel.org/stable/c/ddbec99f58571301679addbc022256970ca3eac6"}],"title":"hsr: 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