{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-48840 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-48840 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Jul 2024. 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-2022-48840 and fix it if it is affected.\n\nWhat it is: CVE-2022-48840 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Jul 2024. 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-2022-48840 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-2022-48840/ (Markdown: https://insights.sbomify.com/CVE-2022-48840/index.md)","id":"CVE-2022-48840","markdown":"https://insights.sbomify.com/CVE-2022-48840/index.md","name":"CVE-2022-48840","record":{"aliases":["DEBIAN-CVE-2022-48840","GHSA-f9vw-2hpv-h272","UBUNTU-CVE-2022-48840"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A logic error in the iavf driver causes an infinite loop during system shutdown, leading to a hang and denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"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":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\niavf: Fix hang during reboot/shutdown\n\nRecent commit 974578017fc1 (\"iavf: Add waiting so the port is\ninitialized in remove\") adds a wait-loop at the beginning of\niavf_remove() to ensure that port initialization is finished\nprior unregistering net device. This causes a regression\nin reboot/shutdown scenario because in this case callback\niavf_shutdown() is called and this callback detaches the device,\nmakes it down if it is running and sets its state to __IAVF_REMOVE.\nLater shutdown callback of associated PF driver (e.g. ice_shutdown)\nis called. That callback calls among other things sriov_disable()\nthat calls indirectly iavf_remove() (see stack trace below).\nAs the adapter state is already __IAVF_REMOVE then the mentioned\nloop is end-less and shutdown process hangs.\n\nThe patch fixes this by checking adapter's state at the beginning\nof iavf_remove() and skips the rest of the function if the adapter\nis already in remove state (shutdown is in progress).\n\nReproducer:\n1. Create VF on PF driven by ice or i40e driver\n2. Ensure that the VF is bound to iavf driver\n3. Reboot\n\n[52625.981294] sysrq: SysRq : Show Blocked State\n[52625.988377] task:reboot          state:D stack:    0 pid:17359 ppid:     1 f2\n[52625.996732] Call Trace:\n[52625.999187]  __schedule+0x2d1/0x830\n[52626.007400]  schedule+0x35/0xa0\n[52626.010545]  schedule_hrtimeout_range_clock+0x83/0x100\n[52626.020046]  usleep_range+0x5b/0x80\n[52626.023540]  iavf_remove+0x63/0x5b0 [iavf]\n[52626.027645]  pci_device_remove+0x3b/0xc0\n[52626.031572]  device_release_driver_internal+0x103/0x1f0\n[52626.036805]  pci_stop_bus_device+0x72/0xa0\n[52626.040904]  pci_stop_and_remove_bus_device+0xe/0x20\n[52626.045870]  pci_iov_remove_virtfn+0xba/0x120\n[52626.050232]  sriov_disable+0x2f/0xe0\n[52626.053813]  ice_free_vfs+0x7c/0x340 [ice]\n[52626.057946]  ice_remove+0x220/0x240 [ice]\n[52626.061967]  ice_shutdown+0x16/0x50 [ice]\n[52626.065987]  pci_device_shutdown+0x34/0x60\n[52626.070086]  device_shutdown+0x165/0x1c5\n[52626.074011]  kernel_restart+0xe/0x30\n[52626.077593]  __do_sys_reboot+0x1d2/0x210\n[52626.093815]  do_syscall_64+0x5b/0x1a0\n[52626.097483]  entry_SYSCALL_64_after_hwframe+0x65/0xca","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":"iavf: Fix hang during reboot/shutdown","id":"CVE-2022-48840","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":3,"next":{"headline":"ice: fix NULL pointer dereference in ice_update_vsi_tx_ring_stats()","id":"CVE-2022-48841"},"packages":[],"prev":{"headline":"net/packet: fix slab-out-of-bounds access in packet_recvmsg()","id":"CVE-2022-48839"},"products":["Linux"],"published":"2024-07-16","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A logic error in the iavf driver causes an infinite loop during system shutdown, leading to a hang and denial of service.","url":"https://insights.sbomify.com/CVE-2022-48840/"}