{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-26793 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-26793 is a high-severity use after free vulnerability in Linux kernel, published on 4 Apr 2024. 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-2024-26793 and fix it if it is affected.\n\nWhat it is: CVE-2024-26793 is a high-severity use after free vulnerability in Linux kernel, published on 4 Apr 2024. 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-2024-26793 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-2024-26793/ (Markdown: https://insights.sbomify.com/CVE-2024-26793/index.md)","id":"CVE-2024-26793","markdown":"https://insights.sbomify.com/CVE-2024-26793/index.md","name":"CVE-2024-26793","record":{"aliases":["BELL-CVE-2024-26793","DEBIAN-CVE-2024-26793","GHSA-3v83-crv9-cf9p","UBUNTU-CVE-2024-26793"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel GTP module","requires_auth":"low_privilege","summary":"A use-after-free and null pointer dereference in the Linux kernel GTP module allows local attackers to cause a system crash.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-476","name":"NULL Pointer Dereference"},{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngtp: fix use-after-free and null-ptr-deref in gtp_newlink()\n\nThe gtp_link_ops operations structure for the subsystem must be\nregistered after registering the gtp_net_ops pernet operations structure.\n\nSyzkaller hit 'general protection fault in gtp_genl_dump_pdp' bug:\n\n[ 1010.702740] gtp: GTP module unloaded\n[ 1010.715877] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI\n[ 1010.715888] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]\n[ 1010.715895] CPU: 1 PID: 128616 Comm: a.out Not tainted 6.8.0-rc6-std-def-alt1 #1\n[ 1010.715899] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.0-alt1 04/01/2014\n[ 1010.715908] RIP: 0010:gtp_newlink+0x4d7/0x9c0 [gtp]\n[ 1010.715915] Code: 80 3c 02 00 0f 85 41 04 00 00 48 8b bb d8 05 00 00 e8 ed f6 ff ff 48 89 c2 48 89 c5 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 \u003c80\u003e 3c 02 00 0f 85 4f 04 00 00 4c 89 e2 4c 8b 6d 00 48 b8 00 00 00\n[ 1010.715920] RSP: 0018:ffff888020fbf180 EFLAGS: 00010203\n[ 1010.715929] RAX: dffffc0000000000 RBX: ffff88800399c000 RCX: 0000000000000000\n[ 1010.715933] RDX: 0000000000000001 RSI: ffffffff84805280 RDI: 0000000000000282\n[ 1010.715938] RBP: 000000000000000d R08: 0000000000000001 R09: 0000000000000000\n[ 1010.715942] R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800399cc80\n[ 1010.715947] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000400\n[ 1010.715953] FS:  00007fd1509ab5c0(0000) GS:ffff88805b300000(0000) knlGS:0000000000000000\n[ 1010.715958] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 1010.715962] CR2: 0000000000000000 CR3: 000000001c07a000 CR4: 0000000000750ee0\n[ 1010.715968] PKRU: 55555554\n[ 1010.715972] Call Trace:\n[ 1010.715985]  ? __die_body.cold+0x1a/0x1f\n[ 1010.715995]  ? die_addr+0x43/0x70\n[ 1010.716002]  ? exc_general_protection+0x199/0x2f0\n[ 1010.716016]  ? asm_exc_general_protection+0x1e/0x30\n[ 1010.716026]  ? gtp_newlink+0x4d7/0x9c0 [gtp]\n[ 1010.716034]  ? gtp_net_exit+0x150/0x150 [gtp]\n[ 1010.716042]  __rtnl_newlink+0x1063/0x1700\n[ 1010.716051]  ? rtnl_setlink+0x3c0/0x3c0\n[ 1010.716063]  ? is_bpf_text_address+0xc0/0x1f0\n[ 1010.716070]  ? kernel_text_address.part.0+0xbb/0xd0\n[ 1010.716076]  ? __kernel_text_address+0x56/0xa0\n[ 1010.716084]  ? unwind_get_return_address+0x5a/0xa0\n[ 1010.716091]  ? create_prof_cpu_mask+0x30/0x30\n[ 1010.716098]  ? arch_stack_walk+0x9e/0xf0\n[ 1010.716106]  ? stack_trace_save+0x91/0xd0\n[ 1010.716113]  ? stack_trace_consume_entry+0x170/0x170\n[ 1010.716121]  ? __lock_acquire+0x15c5/0x5380\n[ 1010.716139]  ? mark_held_locks+0x9e/0xe0\n[ 1010.716148]  ? kmem_cache_alloc_trace+0x35f/0x3c0\n[ 1010.716155]  ? __rtnl_newlink+0x1700/0x1700\n[ 1010.716160]  rtnl_newlink+0x69/0xa0\n[ 1010.716166]  rtnetlink_rcv_msg+0x43b/0xc50\n[ 1010.716172]  ? rtnl_fdb_dump+0x9f0/0x9f0\n[ 1010.716179]  ? lock_acquire+0x1fe/0x560\n[ 1010.716188]  ? netlink_deliver_tap+0x12f/0xd50\n[ 1010.716196]  netlink_rcv_skb+0x14d/0x440\n[ 1010.716202]  ? rtnl_fdb_dump+0x9f0/0x9f0\n[ 1010.716208]  ? netlink_ack+0xab0/0xab0\n[ 1010.716213]  ? netlink_deliver_tap+0x202/0xd50\n[ 1010.716220]  ? netlink_deliver_tap+0x218/0xd50\n[ 1010.716226]  ? __virt_addr_valid+0x30b/0x590\n[ 1010.716233]  netlink_unicast+0x54b/0x800\n[ 1010.716240]  ? netlink_attachskb+0x870/0x870\n[ 1010.716248]  ? __check_object_size+0x2de/0x3b0\n[ 1010.716254]  netlink_sendmsg+0x938/0xe40\n[ 1010.716261]  ? netlink_unicast+0x800/0x800\n[ 1010.716269]  ? __import_iovec+0x292/0x510\n[ 1010.716276]  ? netlink_unicast+0x800/0x800\n[ 1010.716284]  __sock_sendmsg+0x159/0x190\n[ 1010.716290]  ____sys_sendmsg+0x712/0x880\n[ 1010.716297]  ? sock_write_iter+0x3d0/0x3d0\n[ 1010.716304]  ? __ia32_sys_recvmmsg+0x270/0x270\n[ 1010.716309]  ? lock_acquire+0x1fe/0x560\n[ 1010.716315]  ? drain_array_locked+0x90/0x90\n[ 1010.716324]  ___sys_sendmsg+0xf8/0x170\n[ 1010.716331]  ? sendmsg_copy_msghdr+0x170/0x170\n[ 1010.716337]  ? lockdep_init_map\n---truncated---","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":"gtp: fix use-after-free and null-ptr-deref in gtp_newlink()","id":"CVE-2024-26793","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2024"},"n_packages":0,"n_references":8,"next":{"headline":"This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.","id":"CVE-2024-26794"},"packages":[],"prev":{"headline":"btrfs: fix double free of anonymous device after snapshot creation failure","id":"CVE-2024-26792"},"products":["Linux"],"published":"2024-04-04","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":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free and null pointer dereference in the Linux kernel GTP module allows local attackers to cause a system crash.","url":"https://insights.sbomify.com/CVE-2024-26793/"}