{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49826 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49826 is a high-severity 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-2022-49826 and fix it if it is affected.\n\nWhat it is: CVE-2022-49826 is a high-severity 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-2022-49826 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-2022-49826/ (Markdown: https://insights.sbomify.com/CVE-2022-49826/index.md)","id":"CVE-2022-49826","markdown":"https://insights.sbomify.com/CVE-2022-49826/index.md","name":"CVE-2022-49826","record":{"aliases":["DEBIAN-CVE-2022-49826","GHSA-56f2-3g4j-6qjh","UBUNTU-CVE-2022-49826"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A double free error in the Linux kernel's libata transport layer leads to a null pointer dereference, causing a system crash during device unbinding.","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":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-415","name":"Double Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nata: libata-transport: fix double ata_host_put() in ata_tport_add()\n\nIn the error path in ata_tport_add(), when calling put_device(),\nata_tport_release() is called, it will put the refcount of 'ap-\u003ehost'.\n\nAnd then ata_host_put() is called again, the refcount is decreased\nto 0, ata_host_release() is called, all ports are freed and set to\nnull.\n\nWhen unbinding the device after failure, ata_host_stop() is called\nto release the resources, it leads a null-ptr-deref(), because all\nthe ports all freed and null.\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000008\nCPU: 7 PID: 18671 Comm: modprobe Kdump: loaded Tainted: G            E      6.1.0-rc3+ #8\npstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\npc : ata_host_stop+0x3c/0x84 [libata]\nlr : release_nodes+0x64/0xd0\nCall trace:\n ata_host_stop+0x3c/0x84 [libata]\n release_nodes+0x64/0xd0\n devres_release_all+0xbc/0x1b0\n device_unbind_cleanup+0x20/0x70\n really_probe+0x158/0x320\n __driver_probe_device+0x84/0x120\n driver_probe_device+0x44/0x120\n __driver_attach+0xb4/0x220\n bus_for_each_dev+0x78/0xdc\n driver_attach+0x2c/0x40\n bus_add_driver+0x184/0x240\n driver_register+0x80/0x13c\n __pci_register_driver+0x4c/0x60\n ahci_pci_driver_init+0x30/0x1000 [ahci]\n\nFix this by removing redundant ata_host_put() in the error path.","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":"ata: libata-transport: fix double ata_host_put() in ata_tport_add()","id":"CVE-2022-49826","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2022"},"n_packages":0,"n_references":6,"next":{"headline":"drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker()","id":"CVE-2022-49827"},"packages":[],"prev":{"headline":"ata: libata-transport: fix error handling in ata_tport_add()","id":"CVE-2022-49825"},"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":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-05","vendors":["Linux"]},"summary":"A double free error in the Linux kernel's libata transport layer leads to a null pointer dereference, causing a system crash during device unbinding.","url":"https://insights.sbomify.com/CVE-2022-49826/"}