{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-56543 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-56543 is a medium-severity vulnerability in Linux kernel, published on 27 Dec 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-2024-56543 and fix it if it is affected.\n\nWhat it is: CVE-2024-56543 is a medium-severity vulnerability in Linux kernel, published on 27 Dec 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-2024-56543 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-2024-56543/ (Markdown: https://insights.sbomify.com/CVE-2024-56543/index.md)","id":"CVE-2024-56543","markdown":"https://insights.sbomify.com/CVE-2024-56543/index.md","name":"CVE-2024-56543","record":{"aliases":["BELL-CVE-2024-56543","DEBIAN-CVE-2024-56543","GHSA-r738-2xc5-r535","UBUNTU-CVE-2024-56543"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel WiFi driver","requires_auth":"low_privilege","summary":"A null pointer dereference in the ath12k WiFi driver during core halt can cause a kernel warning and potential system instability.","user_interaction":"not_required","vuln_class":"null_dereference"},"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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: Skip Rx TID cleanup for self peer\n\nDuring peer create, dp setup for the peer is done where Rx TID is\nupdated for all the TIDs. Peer object for self peer will not go through\ndp setup.\n\nWhen core halts, dp cleanup is done for all the peers. While cleanup,\nrx_tid::ab is accessed which causes below stack trace for self peer.\n\nWARNING: CPU: 6 PID: 12297 at drivers/net/wireless/ath/ath12k/dp_rx.c:851\nCall Trace:\n__warn+0x7b/0x1a0\nath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]\nreport_bug+0x10b/0x200\nhandle_bug+0x3f/0x70\nexc_invalid_op+0x13/0x60\nasm_exc_invalid_op+0x16/0x20\nath12k_dp_rx_frags_cleanup+0xd2/0xe0 [ath12k]\nath12k_dp_rx_frags_cleanup+0xca/0xe0 [ath12k]\nath12k_dp_rx_peer_tid_cleanup+0x39/0xa0 [ath12k]\nath12k_mac_peer_cleanup_all+0x61/0x100 [ath12k]\nath12k_core_halt+0x3b/0x100 [ath12k]\nath12k_core_reset+0x494/0x4c0 [ath12k]\n\nsta object in peer will be updated when remote peer is created. Hence\nuse peer::sta to detect the self peer and skip the cleanup.\n\nTested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.0.1-00029-QCAHKSWPL_SILICONZ-1\nTested-on: WCN7850 hw2.0 PCI WLAN.HMT.1.0.c5-00481-QCAHMTSWPL_V1.0_V2.0_SILICONZ-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":"wifi: ath12k: Skip Rx TID cleanup for self peer","id":"CVE-2024-56543","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":4,"next":{"headline":"udmabuf: change folios array from kmalloc to kvmalloc","id":"CVE-2024-56544"},"packages":[],"prev":{"headline":"drm/amd/display: fix a memleak issue when driver is removed","id":"CVE-2024-56542"},"products":["Linux"],"published":"2024-12-27","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A null pointer dereference in the ath12k WiFi driver during core halt can cause a kernel warning and potential system instability.","url":"https://insights.sbomify.com/CVE-2024-56543/"}