{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-50551 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-50551 is a high-severity vulnerability in Linux kernel, published on 7 Oct 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-2022-50551 and fix it if it is affected.\n\nWhat it is: CVE-2022-50551 is a high-severity vulnerability in Linux kernel, published on 7 Oct 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-2022-50551 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-2022-50551/ (Markdown: https://insights.sbomify.com/CVE-2022-50551/index.md)","id":"CVE-2022-50551","markdown":"https://insights.sbomify.com/CVE-2022-50551/index.md","name":"CVE-2022-50551","record":{"aliases":["DEBIAN-CVE-2022-50551","GHSA-3cj2-mw4r-3p6w","ROOT-OS-UBUNTU-2204-CVE-2022-50551","ROOT-OS-UBUNTU-2404-CVE-2022-50551","UBUNTU-CVE-2022-50551"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel WiFi driver","requires_auth":"low_privilege","summary":"A shift-out-of-bounds vulnerability in the Linux kernel brcmfmac WiFi driver allows a local attacker to cause a denial of service via a crafted device response.","user_interaction":"not_required","vuln_class":"integer_overflow"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.1,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix potential shift-out-of-bounds in brcmf_fw_alloc_request()\n\nThis patch fixes a shift-out-of-bounds in brcmfmac that occurs in\nBIT(chiprev) when a 'chiprev' provided by the device is too large.\nIt should also not be equal to or greater than BITS_PER_TYPE(u32)\nas we do bitwise AND with a u32 variable and BIT(chiprev). The patch\nadds a check that makes the function return NULL if that is the case.\nNote that the NULL case is later handled by the bus-specific caller,\nbrcmf_usb_probe_cb() or brcmf_usb_reset_resume(), for example.\n\nFound by a modified version of syzkaller.\n\nUBSAN: shift-out-of-bounds in drivers/net/wireless/broadcom/brcm80211/brcmfmac/firmware.c\nshift exponent 151055786 is too large for 64-bit type 'long unsigned int'\nCPU: 0 PID: 1885 Comm: kworker/0:2 Tainted: G           O      5.14.0+ #132\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014\nWorkqueue: usb_hub_wq hub_event\nCall Trace:\n dump_stack_lvl+0x57/0x7d\n ubsan_epilogue+0x5/0x40\n __ubsan_handle_shift_out_of_bounds.cold+0x53/0xdb\n ? lock_chain_count+0x20/0x20\n brcmf_fw_alloc_request.cold+0x19/0x3ea\n ? brcmf_fw_get_firmwares+0x250/0x250\n ? brcmf_usb_ioctl_resp_wait+0x1a7/0x1f0\n brcmf_usb_get_fwname+0x114/0x1a0\n ? brcmf_usb_reset_resume+0x120/0x120\n ? number+0x6c4/0x9a0\n brcmf_c_process_clm_blob+0x168/0x590\n ? put_dec+0x90/0x90\n ? enable_ptr_key_workfn+0x20/0x20\n ? brcmf_common_pd_remove+0x50/0x50\n ? rcu_read_lock_sched_held+0xa1/0xd0\n brcmf_c_preinit_dcmds+0x673/0xc40\n ? brcmf_c_set_joinpref_default+0x100/0x100\n ? rcu_read_lock_sched_held+0xa1/0xd0\n ? rcu_read_lock_bh_held+0xb0/0xb0\n ? lock_acquire+0x19d/0x4e0\n ? find_held_lock+0x2d/0x110\n ? brcmf_usb_deq+0x1cc/0x260\n ? mark_held_locks+0x9f/0xe0\n ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n ? _raw_spin_unlock_irqrestore+0x47/0x50\n ? trace_hardirqs_on+0x1c/0x120\n ? brcmf_usb_deq+0x1a7/0x260\n ? brcmf_usb_rx_fill_all+0x5a/0xf0\n brcmf_attach+0x246/0xd40\n ? wiphy_new_nm+0x1476/0x1d50\n ? kmemdup+0x30/0x40\n brcmf_usb_probe+0x12de/0x1690\n ? brcmf_usbdev_qinit.constprop.0+0x470/0x470\n usb_probe_interface+0x25f/0x710\n really_probe+0x1be/0xa90\n __driver_probe_device+0x2ab/0x460\n ? usb_match_id.part.0+0x88/0xc0\n driver_probe_device+0x49/0x120\n __device_attach_driver+0x18a/0x250\n ? driver_allows_async_probing+0x120/0x120\n bus_for_each_drv+0x123/0x1a0\n ? bus_rescan_devices+0x20/0x20\n ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n ? trace_hardirqs_on+0x1c/0x120\n __device_attach+0x207/0x330\n ? device_bind_driver+0xb0/0xb0\n ? kobject_uevent_env+0x230/0x12c0\n bus_probe_device+0x1a2/0x260\n device_add+0xa61/0x1ce0\n ? __mutex_unlock_slowpath+0xe7/0x660\n ? __fw_devlink_link_to_suppliers+0x550/0x550\n usb_set_configuration+0x984/0x1770\n ? kernfs_create_link+0x175/0x230\n usb_generic_driver_probe+0x69/0x90\n usb_probe_device+0x9c/0x220\n really_probe+0x1be/0xa90\n __driver_probe_device+0x2ab/0x460\n driver_probe_device+0x49/0x120\n __device_attach_driver+0x18a/0x250\n ? driver_allows_async_probing+0x120/0x120\n bus_for_each_drv+0x123/0x1a0\n ? bus_rescan_devices+0x20/0x20\n ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n ? trace_hardirqs_on+0x1c/0x120\n __device_attach+0x207/0x330\n ? device_bind_driver+0xb0/0xb0\n ? kobject_uevent_env+0x230/0x12c0\n bus_probe_device+0x1a2/0x260\n device_add+0xa61/0x1ce0\n ? __fw_devlink_link_to_suppliers+0x550/0x550\n usb_new_device.cold+0x463/0xf66\n ? hub_disconnect+0x400/0x400\n ? _raw_spin_unlock_irq+0x24/0x30\n hub_event+0x10d5/0x3330\n ? hub_port_debounce+0x280/0x280\n ? __lock_acquire+0x1671/0x5790\n ? wq_calc_node_cpumask+0x170/0x2a0\n ? lock_release+0x640/0x640\n ? rcu_read_lock_sched_held+0xa1/0xd0\n ? rcu_read_lock_bh_held+0xb0/0xb0\n ? lockdep_hardirqs_on_prepare+0x273/0x3e0\n process_one_work+0x873/0x13e0\n ? lock_release+0x640/0x640\n ? pwq_dec_nr_in_flight+0x320/0x320\n ? rwlock_bug.part.0+0x90/0x90\n worker_thread+0x8b/0xd10\n ? __kthread_parkme+0xd9/0x1d0\n ? pr\n---truncated---","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":"wifi: brcmfmac: Fix potential shift-out-of-bounds in brcmf_fw_alloc_request()","id":"CVE-2022-50551","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2022"},"n_packages":0,"n_references":10,"next":{"headline":"blk-mq: use quiesced elevator switch when reinitializing queues","id":"CVE-2022-50552"},"packages":[],"prev":{"headline":"blk-iolatency: Fix memory leak on add_disk() failures","id":"CVE-2022-50550"},"products":["Linux"],"published":"2025-10-07","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":"2026-05-11","vendors":["Linux"]},"summary":"A shift-out-of-bounds vulnerability in the Linux kernel brcmfmac WiFi driver allows a local attacker to cause a denial of service via a crafted device response.","url":"https://insights.sbomify.com/CVE-2022-50551/"}