{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49452 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49452 is a high-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-49452 and fix it if it is affected.\n\nWhat it is: CVE-2022-49452 is a high-severity use after free vulnerability in Linux kernel, published on 26 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-49452 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-2022-49452/ (Markdown: https://insights.sbomify.com/CVE-2022-49452/index.md)","id":"CVE-2022-49452","markdown":"https://insights.sbomify.com/CVE-2022-49452/index.md","name":"CVE-2022-49452","record":{"aliases":["DEBIAN-CVE-2022-49452","GHSA-hrv2-r4hw-hhjc","UBUNTU-CVE-2022-49452"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A use-after-free vulnerability in the dpaa2-eth driver causes a kernel crash when freeing buffers, leading to denial of service.","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":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndpaa2-eth: retrieve the virtual address before dma_unmap\n\nThe TSO header was DMA unmapped before the virtual address was retrieved\nand then used to free the buffer. This meant that we were actually\nremoving the DMA map and then trying to search for it to help in\nretrieving the virtual address. This lead to a invalid virtual address\nbeing used in the kfree call.\n\nFix this by calling dpaa2_iova_to_virt() prior to the dma_unmap call.\n\n[  487.231819] Unable to handle kernel paging request at virtual address fffffd9807000008\n\n(...)\n\n[  487.354061] Hardware name: SolidRun LX2160A Honeycomb (DT)\n[  487.359535] pstate: a0400005 (NzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  487.366485] pc : kfree+0xac/0x304\n[  487.369799] lr : kfree+0x204/0x304\n[  487.373191] sp : ffff80000c4eb120\n[  487.376493] x29: ffff80000c4eb120 x28: ffff662240c46400 x27: 0000000000000001\n[  487.383621] x26: 0000000000000001 x25: ffff662246da0cc0 x24: ffff66224af78000\n[  487.390748] x23: ffffad184f4ce008 x22: ffffad1850185000 x21: ffffad1838d13cec\n[  487.397874] x20: ffff6601c0000000 x19: fffffd9807000000 x18: 0000000000000000\n[  487.405000] x17: ffffb910cdc49000 x16: ffffad184d7d9080 x15: 0000000000004000\n[  487.412126] x14: 0000000000000008 x13: 000000000000ffff x12: 0000000000000000\n[  487.419252] x11: 0000000000000004 x10: 0000000000000001 x9 : ffffad184d7d927c\n[  487.426379] x8 : 0000000000000000 x7 : 0000000ffffffd1d x6 : ffff662240a94900\n[  487.433505] x5 : 0000000000000003 x4 : 0000000000000009 x3 : ffffad184f4ce008\n[  487.440632] x2 : ffff662243eec000 x1 : 0000000100000100 x0 : fffffc0000000000\n[  487.447758] Call trace:\n[  487.450194]  kfree+0xac/0x304\n[  487.453151]  dpaa2_eth_free_tx_fd.isra.0+0x33c/0x3e0 [fsl_dpaa2_eth]\n[  487.459507]  dpaa2_eth_tx_conf+0x100/0x2e0 [fsl_dpaa2_eth]\n[  487.464989]  dpaa2_eth_poll+0xdc/0x380 [fsl_dpaa2_eth]","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":"dpaa2-eth: retrieve the virtual address before dma_unmap","id":"CVE-2022-49452","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":"soc: ti: ti_sci_pm_domains: Check for null return of devm_kcalloc","id":"CVE-2022-49453"},"packages":[],"prev":{"headline":"firmware: arm_scmi: Fix list protocols enumeration in the base protocol","id":"CVE-2022-49451"},"products":["Linux"],"published":"2025-02-26","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 use-after-free vulnerability in the dpaa2-eth driver causes a kernel crash when freeing buffers, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2022-49452/"}