{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49808 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49808 is a medium-severity use after free vulnerability in Linux kernel, published on 1 May 2025. 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-2022-49808 and fix it if it is affected.\n\nWhat it is: CVE-2022-49808 is a medium-severity use after free vulnerability in Linux kernel, published on 1 May 2025. 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-2022-49808 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-2022-49808/ (Markdown: https://insights.sbomify.com/CVE-2022-49808/index.md)","id":"CVE-2022-49808","markdown":"https://insights.sbomify.com/CVE-2022-49808/index.md","name":"CVE-2022-49808","record":{"aliases":["DEBIAN-CVE-2022-49808","GHSA-m9hv-2rww-w638","UBUNTU-CVE-2022-49808"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel DSA","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel DSA subsystem allows attackers to cause denial of service or execute code during switch driver unbind.","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":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\nnet: dsa: don't leak tagger-owned storage on switch driver unbind\n\nIn the initial commit dc452a471dba (\"net: dsa: introduce tagger-owned\nstorage for private and shared data\"), we had a call to\ntag_ops-\u003edisconnect(dst) issued from dsa_tree_free(), which is called at\ntree teardown time.\n\nThere were problems with connecting to a switch tree as a whole, so this\ngot reworked to connecting to individual switches within the tree. In\nthis process, tag_ops-\u003edisconnect(ds) was made to be called only from\nswitch.c (cross-chip notifiers emitted as a result of dynamic tag proto\nchanges), but the normal driver teardown code path wasn't replaced with\nanything.\n\nSolve this problem by adding a function that does the opposite of\ndsa_switch_setup_tag_protocol(), which is called from the equivalent\nspot in dsa_switch_teardown(). The positioning here also ensures that we\nwon't have any use-after-free in tagging protocol (*rcv) ops, since the\nteardown sequence is as follows:\n\ndsa_tree_teardown\n-\u003e dsa_tree_teardown_master\n   -\u003e dsa_master_teardown\n      -\u003e unsets master-\u003edsa_ptr, making no further packets match the\n         ETH_P_XDSA packet type handler\n-\u003e dsa_tree_teardown_ports\n   -\u003e dsa_port_teardown\n      -\u003e dsa_slave_destroy\n         -\u003e unregisters DSA net devices, there is even a synchronize_net()\n            in unregister_netdevice_many()\n-\u003e dsa_tree_teardown_switches\n   -\u003e dsa_switch_teardown\n      -\u003e dsa_switch_teardown_tag_protocol\n         -\u003e finally frees the tagger-owned storage","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: dsa: don't leak tagger-owned storage on switch driver unbind","id":"CVE-2022-49808","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2022"},"n_packages":0,"n_references":2,"next":{"headline":"net/x25: Fix skb leak in x25_lapb_receive_frame()","id":"CVE-2022-49809"},"packages":[],"prev":{"headline":"nvmet: fix a memory leak in nvmet_auth_set_key","id":"CVE-2022-49807"},"products":["Linux"],"published":"2025-05-01","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 use-after-free vulnerability in the Linux kernel DSA subsystem allows attackers to cause denial of service or execute code during switch driver unbind.","url":"https://insights.sbomify.com/CVE-2022-49808/"}