{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2022-50851 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50851 is a denial of service vulnerability in Linux, published on 30 Dec 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-2022-50851 and fix it if it is affected.\n\nWhat it is: CVE-2022-50851 is a denial of service vulnerability in Linux, published on 30 Dec 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-2022-50851 in the wild and no public exploit code.\n\nAffected product: Linux. 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-2022-50851/ (Markdown: https://insights.sbomify.com/CVE-2022-50851/index.md)","id":"CVE-2022-50851","markdown":"https://insights.sbomify.com/CVE-2022-50851/index.md","name":"CVE-2022-50851","record":{"aliases":["DEBIAN-CVE-2022-50851","GHSA-59wc-rrrg-chg9","ROOT-OS-DEBIAN-11-CVE-2022-50851","ROOT-OS-UBUNTU-2204-CVE-2022-50851","UBUNTU-CVE-2022-50851"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A local attacker with low privileges can crash the Linux kernel by unmapping large memory in vhost_vdpa, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost_vdpa: fix the crash in unmap a large memory\n\nWhile testing in vIOMMU, sometimes Guest will unmap very large memory,\nwhich will cause the crash. To fix this, add a new function\nvhost_vdpa_general_unmap(). This function will only unmap the memory\nthat saved in iotlb.\n\nCall Trace:\n[  647.820144] ------------[ cut here ]------------\n[  647.820848] kernel BUG at drivers/iommu/intel/iommu.c:1174!\n[  647.821486] invalid opcode: 0000 [#1] PREEMPT SMP PTI\n[  647.822082] CPU: 10 PID: 1181 Comm: qemu-system-x86 Not tainted 6.0.0-rc1home_lulu_2452_lulu7_vhost+ #62\n[  647.823139] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.15.0-29-g6a62e0cb0dfe-prebuilt.qem4\n[  647.824365] RIP: 0010:domain_unmap+0x48/0x110\n[  647.825424] Code: 48 89 fb 8d 4c f6 1e 39 c1 0f 4f c8 83 e9 0c 83 f9 3f 7f 18 48 89 e8 48 d3 e8 48 85 c0 75 59\n[  647.828064] RSP: 0018:ffffae5340c0bbf0 EFLAGS: 00010202\n[  647.828973] RAX: 0000000000000001 RBX: ffff921793d10540 RCX: 000000000000001b\n[  647.830083] RDX: 00000000080000ff RSI: 0000000000000001 RDI: ffff921793d10540\n[  647.831214] RBP: 0000000007fc0100 R08: ffffae5340c0bcd0 R09: 0000000000000003\n[  647.832388] R10: 0000007fc0100000 R11: 0000000000100000 R12: 00000000080000ff\n[  647.833668] R13: ffffae5340c0bcd0 R14: ffff921793d10590 R15: 0000008000100000\n[  647.834782] FS:  00007f772ec90640(0000) GS:ffff921ce7a80000(0000) knlGS:0000000000000000\n[  647.836004] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[  647.836990] CR2: 00007f02c27a3a20 CR3: 0000000101b0c006 CR4: 0000000000372ee0\n[  647.838107] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[  647.839283] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[  647.840666] Call Trace:\n[  647.841437]  \u003cTASK\u003e\n[  647.842107]  intel_iommu_unmap_pages+0x93/0x140\n[  647.843112]  __iommu_unmap+0x91/0x1b0\n[  647.844003]  iommu_unmap+0x6a/0x95\n[  647.844885]  vhost_vdpa_unmap+0x1de/0x1f0 [vhost_vdpa]\n[  647.845985]  vhost_vdpa_process_iotlb_msg+0xf0/0x90b [vhost_vdpa]\n[  647.847235]  ? _raw_spin_unlock+0x15/0x30\n[  647.848181]  ? _copy_from_iter+0x8c/0x580\n[  647.849137]  vhost_chr_write_iter+0xb3/0x430 [vhost]\n[  647.850126]  vfs_write+0x1e4/0x3a0\n[  647.850897]  ksys_write+0x53/0xd0\n[  647.851688]  do_syscall_64+0x3a/0x90\n[  647.852508]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[  647.853457] RIP: 0033:0x7f7734ef9f4f\n[  647.854408] Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 29 76 f8 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c8\n[  647.857217] RSP: 002b:00007f772ec8f040 EFLAGS: 00000293 ORIG_RAX: 0000000000000001\n[  647.858486] RAX: ffffffffffffffda RBX: 00000000fef00000 RCX: 00007f7734ef9f4f\n[  647.859713] RDX: 0000000000000048 RSI: 00007f772ec8f090 RDI: 0000000000000010\n[  647.860942] RBP: 00007f772ec8f1a0 R08: 0000000000000000 R09: 0000000000000000\n[  647.862206] R10: 0000000000000001 R11: 0000000000000293 R12: 0000000000000010\n[  647.863446] R13: 0000000000000002 R14: 0000000000000000 R15: ffffffff01100000\n[  647.864692]  \u003c/TASK\u003e\n[  647.865458] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache netfs v]\n[  647.874688] ---[ end trace 0000000000000000 ]---","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":"vhost_vdpa: fix the crash in unmap a large memory","id":"CVE-2022-50851","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"wifi: mt76: mt7921: fix use after free in mt7921_acpi_read()","id":"CVE-2022-50852"},"packages":[],"prev":{"headline":"scsi: ipr: Fix WARNING in ipr_init()","id":"CVE-2022-50850"},"products":["Linux"],"published":"2025-12-30","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A local attacker with low privileges can crash the Linux kernel by unmapping large memory in vhost_vdpa, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2022-50851/"}