{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-71096 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-71096 is a medium-severity vulnerability in Linux kernel, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2025-71096 and fix it if it is affected.\n\nWhat it is: CVE-2025-71096 is a medium-severity vulnerability in Linux kernel, published on 13 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2025-71096 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2025-71096/ (Markdown: https://insights.sbomify.com/CVE-2025-71096/index.md)","id":"CVE-2025-71096","markdown":"https://insights.sbomify.com/CVE-2025-71096/index.md","name":"CVE-2025-71096","record":{"aliases":["BELL-CVE-2025-71096","DEBIAN-CVE-2025-71096","GHSA-vxx9-9gjr-jrj2","ROOT-OS-UBUNTU-2204-CVE-2025-71096","ROOT-OS-UBUNTU-2404-CVE-2025-71096","UBUNTU-CVE-2025-71096"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel RDMA","requires_auth":"low_privilege","summary":"A local attacker can trigger an uninitialized memory read in the Linux kernel RDMA subsystem, potentially leaking sensitive kernel stack data.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-908","name":"Use of Uninitialized Resource"},{"id":"CWE-457","name":"Use of Uninitialized Variable"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/core: Check for the presence of LS_NLA_TYPE_DGID correctly\n\nThe netlink response for RDMA_NL_LS_OP_IP_RESOLVE should always have a\nLS_NLA_TYPE_DGID attribute, it is invalid if it does not.\n\nUse the nl parsing logic properly and call nla_parse_deprecated() to fill\nthe nlattrs array and then directly index that array to get the data for\nthe DGID. Just fail if it is NULL.\n\nRemove the for loop searching for the nla, and squash the validation and\nparsing into one function.\n\nFixes an uninitialized read from the stack triggered by userspace if it\ndoes not provide the DGID to a kernel initiated RDMA_NL_LS_OP_IP_RESOLVE\nquery.\n\n    BUG: KMSAN: uninit-value in hex_byte_pack include/linux/hex.h:13 [inline]\n    BUG: KMSAN: uninit-value in ip6_string+0xef4/0x13a0 lib/vsprintf.c:1490\n     hex_byte_pack include/linux/hex.h:13 [inline]\n     ip6_string+0xef4/0x13a0 lib/vsprintf.c:1490\n     ip6_addr_string+0x18a/0x3e0 lib/vsprintf.c:1509\n     ip_addr_string+0x245/0xee0 lib/vsprintf.c:1633\n     pointer+0xc09/0x1bd0 lib/vsprintf.c:2542\n     vsnprintf+0xf8a/0x1bd0 lib/vsprintf.c:2930\n     vprintk_store+0x3ae/0x1530 kernel/printk/printk.c:2279\n     vprintk_emit+0x307/0xcd0 kernel/printk/printk.c:2426\n     vprintk_default+0x3f/0x50 kernel/printk/printk.c:2465\n     vprintk+0x36/0x50 kernel/printk/printk_safe.c:82\n     _printk+0x17e/0x1b0 kernel/printk/printk.c:2475\n     ib_nl_process_good_ip_rsep drivers/infiniband/core/addr.c:128 [inline]\n     ib_nl_handle_ip_res_resp+0x963/0x9d0 drivers/infiniband/core/addr.c:141\n     rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:-1 [inline]\n     rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]\n     rdma_nl_rcv+0xefa/0x11c0 drivers/infiniband/core/netlink.c:259\n     netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline]\n     netlink_unicast+0xf04/0x12b0 net/netlink/af_netlink.c:1346\n     netlink_sendmsg+0x10b3/0x1250 net/netlink/af_netlink.c:1896\n     sock_sendmsg_nosec net/socket.c:714 [inline]\n     __sock_sendmsg+0x333/0x3d0 net/socket.c:729\n     ____sys_sendmsg+0x7e0/0xd80 net/socket.c:2617\n     ___sys_sendmsg+0x271/0x3b0 net/socket.c:2671\n     __sys_sendmsg+0x1aa/0x300 net/socket.c:2703\n     __compat_sys_sendmsg net/compat.c:346 [inline]\n     __do_compat_sys_sendmsg net/compat.c:353 [inline]\n     __se_compat_sys_sendmsg net/compat.c:350 [inline]\n     __ia32_compat_sys_sendmsg+0xa4/0x100 net/compat.c:350\n     ia32_sys_call+0x3f6c/0x4310 arch/x86/include/generated/asm/syscalls_32.h:371\n     do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]\n     __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306\n     do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331\n     do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:3","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"RDMA/core: Check for the presence of LS_NLA_TYPE_DGID correctly","id":"CVE-2025-71096","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"information_disclosure","year":"2025"},"n_packages":0,"n_references":7,"next":{"headline":"ipv4: Fix reference count leak when using error routes with nexthop objects","id":"CVE-2025-71097"},"packages":[],"prev":{"headline":"net: stmmac: fix the crash issue for zero copy XDP_TX action","id":"CVE-2025-71095"},"products":["Linux"],"published":"2026-01-13","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A local attacker can trigger an uninitialized memory read in the Linux kernel RDMA subsystem, potentially leaking sensitive kernel stack data.","url":"https://insights.sbomify.com/CVE-2025-71096/"}