{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-50261 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-50261 is a high-severity use after free vulnerability in Linux kernel, published on 9 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-2024-50261 and fix it if it is affected.\n\nWhat it is: CVE-2024-50261 is a high-severity use after free vulnerability in Linux kernel, published on 9 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-2024-50261 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-2024-50261/ (Markdown: https://insights.sbomify.com/CVE-2024-50261/index.md)","id":"CVE-2024-50261","markdown":"https://insights.sbomify.com/CVE-2024-50261/index.md","name":"CVE-2024-50261","record":{"aliases":["AZL-53379","BELL-CVE-2024-50261","DEBIAN-CVE-2024-50261","GHSA-6gx2-28h4-32x9","UBUNTU-CVE-2024-50261"],"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 in the Linux kernel MACsec offloading path allows attackers to cause a system crash or potentially execute arbitrary 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\nmacsec: Fix use-after-free while sending the offloading packet\n\nKASAN reports the following UAF. The metadata_dst, which is used to\nstore the SCI value for macsec offload, is already freed by\nmetadata_dst_free() in macsec_free_netdev(), while driver still use it\nfor sending the packet.\n\nTo fix this issue, dst_release() is used instead to release\nmetadata_dst. So it is not freed instantly in macsec_free_netdev() if\nstill referenced by skb.\n\n BUG: KASAN: slab-use-after-free in mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n Read of size 2 at addr ffff88813e42e038 by task kworker/7:2/714\n [...]\n Workqueue: mld mld_ifc_work\n Call Trace:\n  \u003cTASK\u003e\n  dump_stack_lvl+0x51/0x60\n  print_report+0xc1/0x600\n  kasan_report+0xab/0xe0\n  mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n  dev_hard_start_xmit+0x120/0x530\n  sch_direct_xmit+0x149/0x11e0\n  __qdisc_run+0x3ad/0x1730\n  __dev_queue_xmit+0x1196/0x2ed0\n  vlan_dev_hard_start_xmit+0x32e/0x510 [8021q]\n  dev_hard_start_xmit+0x120/0x530\n  __dev_queue_xmit+0x14a7/0x2ed0\n  macsec_start_xmit+0x13e9/0x2340\n  dev_hard_start_xmit+0x120/0x530\n  __dev_queue_xmit+0x14a7/0x2ed0\n  ip6_finish_output2+0x923/0x1a70\n  ip6_finish_output+0x2d7/0x970\n  ip6_output+0x1ce/0x3a0\n  NF_HOOK.constprop.0+0x15f/0x190\n  mld_sendpack+0x59a/0xbd0\n  mld_ifc_work+0x48a/0xa80\n  process_one_work+0x5aa/0xe50\n  worker_thread+0x79c/0x1290\n  kthread+0x28f/0x350\n  ret_from_fork+0x2d/0x70\n  ret_from_fork_asm+0x11/0x20\n  \u003c/TASK\u003e\n\n Allocated by task 3922:\n  kasan_save_stack+0x20/0x40\n  kasan_save_track+0x10/0x30\n  __kasan_kmalloc+0x77/0x90\n  __kmalloc_noprof+0x188/0x400\n  metadata_dst_alloc+0x1f/0x4e0\n  macsec_newlink+0x914/0x1410\n  __rtnl_newlink+0xe08/0x15b0\n  rtnl_newlink+0x5f/0x90\n  rtnetlink_rcv_msg+0x667/0xa80\n  netlink_rcv_skb+0x12c/0x360\n  netlink_unicast+0x551/0x770\n  netlink_sendmsg+0x72d/0xbd0\n  __sock_sendmsg+0xc5/0x190\n  ____sys_sendmsg+0x52e/0x6a0\n  ___sys_sendmsg+0xeb/0x170\n  __sys_sendmsg+0xb5/0x140\n  do_syscall_64+0x4c/0x100\n  entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n Freed by task 4011:\n  kasan_save_stack+0x20/0x40\n  kasan_save_track+0x10/0x30\n  kasan_save_free_info+0x37/0x50\n  poison_slab_object+0x10c/0x190\n  __kasan_slab_free+0x11/0x30\n  kfree+0xe0/0x290\n  macsec_free_netdev+0x3f/0x140\n  netdev_run_todo+0x450/0xc70\n  rtnetlink_rcv_msg+0x66f/0xa80\n  netlink_rcv_skb+0x12c/0x360\n  netlink_unicast+0x551/0x770\n  netlink_sendmsg+0x72d/0xbd0\n  __sock_sendmsg+0xc5/0x190\n  ____sys_sendmsg+0x52e/0x6a0\n  ___sys_sendmsg+0xeb/0x170\n  __sys_sendmsg+0xb5/0x140\n  do_syscall_64+0x4c/0x100\n  entry_SYSCALL_64_after_hwframe+0x4b/0x53","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":"macsec: Fix use-after-free while sending the offloading packet","id":"CVE-2024-50261","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":"bpf: Fix out-of-bounds write in trie_get_next_key()","id":"CVE-2024-50262"},"packages":[],"prev":{"headline":"sock_map: fix a NULL pointer dereference in sock_map_link_update_prog()","id":"CVE-2024-50260"},"products":["Linux"],"published":"2024-11-09","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 in the Linux kernel MACsec offloading path allows attackers to cause a system crash or potentially execute arbitrary code.","url":"https://insights.sbomify.com/CVE-2024-50261/"}