{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46323 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-46323 is a high-severity use after free vulnerability in Linux kernel, published on 9 Jun 2026. 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-2026-46323 and fix it if it is affected.\n\nWhat it is: CVE-2026-46323 is a high-severity use after free vulnerability in Linux kernel, published on 9 Jun 2026. 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-2026-46323 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-2026-46323/ (Markdown: https://insights.sbomify.com/CVE-2026-46323/index.md)","id":"CVE-2026-46323","markdown":"https://insights.sbomify.com/CVE-2026-46323/index.md","name":"CVE-2026-46323","record":{"aliases":["ALSA-2026:44270","AZL-89684","BELL-CVE-2026-46323","DEBIAN-CVE-2026-46323","GHSA-hf4r-hm8m-w52j","RHSA-2026:44270","ROOT-OS-DEBIAN-12-CVE-2026-46323","ROOT-OS-DEBIAN-13-CVE-2026-46323","ROOT-OS-UBUNTU-2404-CVE-2026-46323","UBUNTU-CVE-2026-46323"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","privilege_escalation"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's GRO implementation allows attackers to execute arbitrary code or escalate privileges.","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-123","name":"Write-what-where Condition"},{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: gro: don't merge zcopy skbs\n\nskb_gro_receive() can currently copy frags between the source and GRO\nskb, without checking the zerocopy status, and in particular the\nSKBFL_MANAGED_FRAG_REFS flag.\n\nWhen SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference\non the pages in shinfo-\u003efrags. Appending those frags to another skb's\nfrags without fixing up the page refcount can lead to UAF.\n\nWhen either the last skb in the GRO chain (the one we would append\nfrags to) or the source skb is zerocopy, don't merge the skbs.","ecosystems":["AlmaLinux:10","Red Hat:enterprise_linux:10.2"],"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: gro: don't merge zcopy skbs","id":"CVE-2026-46323","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2026"},"n_packages":165,"n_references":6,"next":{"headline":"netfilter: nf_tables: use list_del_rcu for netlink hooks","id":"CVE-2026-46324"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel","purl":"pkg:rpm/almalinux/kernel","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k","purl":"pkg:rpm/almalinux/kernel-64k","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-core","purl":"pkg:rpm/almalinux/kernel-64k-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug","purl":"pkg:rpm/almalinux/kernel-64k-debug","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-core","purl":"pkg:rpm/almalinux/kernel-64k-debug-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-devel","purl":"pkg:rpm/almalinux/kernel-64k-debug-devel","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-devel-matched","purl":"pkg:rpm/almalinux/kernel-64k-debug-devel-matched","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-modules","purl":"pkg:rpm/almalinux/kernel-64k-debug-modules","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-modules-core","purl":"pkg:rpm/almalinux/kernel-64k-debug-modules-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-debug-modules-extra","purl":"pkg:rpm/almalinux/kernel-64k-debug-modules-extra","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-devel","purl":"pkg:rpm/almalinux/kernel-64k-devel","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-devel-matched","purl":"pkg:rpm/almalinux/kernel-64k-devel-matched","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-modules","purl":"pkg:rpm/almalinux/kernel-64k-modules","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-modules-core","purl":"pkg:rpm/almalinux/kernel-64k-modules-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-64k-modules-extra","purl":"pkg:rpm/almalinux/kernel-64k-modules-extra","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-abi-stablelists","purl":"pkg:rpm/almalinux/kernel-abi-stablelists","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-core","purl":"pkg:rpm/almalinux/kernel-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-cross-headers","purl":"pkg:rpm/almalinux/kernel-cross-headers","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug","purl":"pkg:rpm/almalinux/kernel-debug","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-core","purl":"pkg:rpm/almalinux/kernel-debug-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel","purl":"pkg:rpm/almalinux/kernel-debug-devel","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-devel-matched","purl":"pkg:rpm/almalinux/kernel-debug-devel-matched","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules","purl":"pkg:rpm/almalinux/kernel-debug-modules","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules-core","purl":"pkg:rpm/almalinux/kernel-debug-modules-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-modules-extra","purl":"pkg:rpm/almalinux/kernel-debug-modules-extra","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-debug-uki-virt","purl":"pkg:rpm/almalinux/kernel-debug-uki-virt","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-devel","purl":"pkg:rpm/almalinux/kernel-devel","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-devel-matched","purl":"pkg:rpm/almalinux/kernel-devel-matched","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-doc","purl":"pkg:rpm/almalinux/kernel-doc","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-headers","purl":"pkg:rpm/almalinux/kernel-headers","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-modules","purl":"pkg:rpm/almalinux/kernel-modules","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-core","purl":"pkg:rpm/almalinux/kernel-modules-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-extra","purl":"pkg:rpm/almalinux/kernel-modules-extra","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-modules-extra-matched","purl":"pkg:rpm/almalinux/kernel-modules-extra-matched","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt","purl":"pkg:rpm/almalinux/kernel-rt","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-64k","purl":"pkg:rpm/almalinux/kernel-rt-64k","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-64k-core","purl":"pkg:rpm/almalinux/kernel-rt-64k-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-64k-debug","purl":"pkg:rpm/almalinux/kernel-rt-64k-debug","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-64k-debug-core","purl":"pkg:rpm/almalinux/kernel-rt-64k-debug-core","source":"ALSA-2026:44270"},{"ecosystem":"AlmaLinux:10","fixed":["6.12.0-211.38.1.el10_2"],"introduced":["0"],"last_affected":[],"package":"kernel-rt-64k-debug-devel","purl":"pkg:rpm/almalinux/kernel-rt-64k-debug-devel","source":"ALSA-2026:44270"}],"prev":{"headline":"tun: free page on build_skb failure in tun_xdp_one()","id":"CVE-2026-46322"},"products":["Linux"],"published":"2026-06-09","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":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"2026-10-19","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's GRO implementation allows attackers to execute arbitrary code or escalate privileges.","url":"https://insights.sbomify.com/CVE-2026-46323/"}