{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-50126 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-50126 is a high-severity use after free vulnerability in Linux kernel, published on 5 Nov 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-2024-50126 and fix it if it is affected.\n\nWhat it is: CVE-2024-50126 is a high-severity use after free vulnerability in Linux kernel, published on 5 Nov 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-2024-50126 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-2024-50126/ (Markdown: https://insights.sbomify.com/CVE-2024-50126/index.md)","id":"CVE-2024-50126","markdown":"https://insights.sbomify.com/CVE-2024-50126/index.md","name":"CVE-2024-50126","record":{"aliases":["AZL-52514","BELL-CVE-2024-50126","DEBIAN-CVE-2024-50126","GHSA-qh6f-g265-fmxf","UBUNTU-CVE-2024-50126"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's taprio scheduler allows local attackers to cause a denial of service or potentially execute code.","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-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: sched: use RCU read-side critical section in taprio_dump()\n\nFix possible use-after-free in 'taprio_dump()' by adding RCU\nread-side critical section there. Never seen on x86 but\nfound on a KASAN-enabled arm64 system when investigating\nhttps://syzkaller.appspot.com/bug?extid=b65e0af58423fc8a73aa:\n\n[T15862] BUG: KASAN: slab-use-after-free in taprio_dump+0xa0c/0xbb0\n[T15862] Read of size 4 at addr ffff0000d4bb88f8 by task repro/15862\n[T15862]\n[T15862] CPU: 0 UID: 0 PID: 15862 Comm: repro Not tainted 6.11.0-rc1-00293-gdefaf1a2113a-dirty #2\n[T15862] Hardware name: QEMU QEMU Virtual Machine, BIOS edk2-20240524-5.fc40 05/24/2024\n[T15862] Call trace:\n[T15862]  dump_backtrace+0x20c/0x220\n[T15862]  show_stack+0x2c/0x40\n[T15862]  dump_stack_lvl+0xf8/0x174\n[T15862]  print_report+0x170/0x4d8\n[T15862]  kasan_report+0xb8/0x1d4\n[T15862]  __asan_report_load4_noabort+0x20/0x2c\n[T15862]  taprio_dump+0xa0c/0xbb0\n[T15862]  tc_fill_qdisc+0x540/0x1020\n[T15862]  qdisc_notify.isra.0+0x330/0x3a0\n[T15862]  tc_modify_qdisc+0x7b8/0x1838\n[T15862]  rtnetlink_rcv_msg+0x3c8/0xc20\n[T15862]  netlink_rcv_skb+0x1f8/0x3d4\n[T15862]  rtnetlink_rcv+0x28/0x40\n[T15862]  netlink_unicast+0x51c/0x790\n[T15862]  netlink_sendmsg+0x79c/0xc20\n[T15862]  __sock_sendmsg+0xe0/0x1a0\n[T15862]  ____sys_sendmsg+0x6c0/0x840\n[T15862]  ___sys_sendmsg+0x1ac/0x1f0\n[T15862]  __sys_sendmsg+0x110/0x1d0\n[T15862]  __arm64_sys_sendmsg+0x74/0xb0\n[T15862]  invoke_syscall+0x88/0x2e0\n[T15862]  el0_svc_common.constprop.0+0xe4/0x2a0\n[T15862]  do_el0_svc+0x44/0x60\n[T15862]  el0_svc+0x50/0x184\n[T15862]  el0t_64_sync_handler+0x120/0x12c\n[T15862]  el0t_64_sync+0x190/0x194\n[T15862]\n[T15862] Allocated by task 15857:\n[T15862]  kasan_save_stack+0x3c/0x70\n[T15862]  kasan_save_track+0x20/0x3c\n[T15862]  kasan_save_alloc_info+0x40/0x60\n[T15862]  __kasan_kmalloc+0xd4/0xe0\n[T15862]  __kmalloc_cache_noprof+0x194/0x334\n[T15862]  taprio_change+0x45c/0x2fe0\n[T15862]  tc_modify_qdisc+0x6a8/0x1838\n[T15862]  rtnetlink_rcv_msg+0x3c8/0xc20\n[T15862]  netlink_rcv_skb+0x1f8/0x3d4\n[T15862]  rtnetlink_rcv+0x28/0x40\n[T15862]  netlink_unicast+0x51c/0x790\n[T15862]  netlink_sendmsg+0x79c/0xc20\n[T15862]  __sock_sendmsg+0xe0/0x1a0\n[T15862]  ____sys_sendmsg+0x6c0/0x840\n[T15862]  ___sys_sendmsg+0x1ac/0x1f0\n[T15862]  __sys_sendmsg+0x110/0x1d0\n[T15862]  __arm64_sys_sendmsg+0x74/0xb0\n[T15862]  invoke_syscall+0x88/0x2e0\n[T15862]  el0_svc_common.constprop.0+0xe4/0x2a0\n[T15862]  do_el0_svc+0x44/0x60\n[T15862]  el0_svc+0x50/0x184\n[T15862]  el0t_64_sync_handler+0x120/0x12c\n[T15862]  el0t_64_sync+0x190/0x194\n[T15862]\n[T15862] Freed by task 6192:\n[T15862]  kasan_save_stack+0x3c/0x70\n[T15862]  kasan_save_track+0x20/0x3c\n[T15862]  kasan_save_free_info+0x4c/0x80\n[T15862]  poison_slab_object+0x110/0x160\n[T15862]  __kasan_slab_free+0x3c/0x74\n[T15862]  kfree+0x134/0x3c0\n[T15862]  taprio_free_sched_cb+0x18c/0x220\n[T15862]  rcu_core+0x920/0x1b7c\n[T15862]  rcu_core_si+0x10/0x1c\n[T15862]  handle_softirqs+0x2e8/0xd64\n[T15862]  __do_softirq+0x14/0x20","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":"net: sched: use RCU read-side critical section in taprio_dump()","id":"CVE-2024-50126","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":4,"next":{"headline":"net: sched: fix use-after-free in taprio_change()","id":"CVE-2024-50127"},"packages":[],"prev":{"headline":"Bluetooth: SCO: Fix UAF on sco_sock_timeout","id":"CVE-2024-50125"},"products":["Linux"],"published":"2024-11-05","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":"total"},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's taprio scheduler allows local attackers to cause a denial of service or potentially execute code.","url":"https://insights.sbomify.com/CVE-2024-50126/"}