{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2025-21708 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2025-21708 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Feb 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-2025-21708 and fix it if it is affected.\n\nWhat it is: CVE-2025-21708 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Feb 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-2025-21708 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-2025-21708/ (Markdown: https://insights.sbomify.com/CVE-2025-21708/index.md)","id":"CVE-2025-21708","markdown":"https://insights.sbomify.com/CVE-2025-21708/index.md","name":"CVE-2025-21708","record":{"aliases":["BELL-CVE-2025-21708","DEBIAN-CVE-2025-21708","GHSA-r5rf-wpwj-h23p","ROOT-OS-UBUNTU-2404-CVE-2025-21708","UBUNTU-CVE-2025-21708"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"low_privilege","summary":"A missing endpoint type check in the Linux kernel rtl8150 USB driver allows a local attacker to trigger a kernel warning and potential 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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: rtl8150: enable basic endpoint checking\n\nSyzkaller reports [1] encountering a common issue of utilizing a wrong\nusb endpoint type during URB submitting stage. This, in turn, triggers\na warning shown below.\n\nFor now, enable simple endpoint checking (specifically, bulk and\ninterrupt eps, testing control one is not essential) to mitigate\nthe issue with a view to do other related cosmetic changes later,\nif they are necessary.\n\n[1] Syzkaller report:\nusb 1-1: BOGUS urb xfer, pipe 3 != type 1\nWARNING: CPU: 1 PID: 2586 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 driv\u003e\nModules linked in:\nCPU: 1 UID: 0 PID: 2586 Comm: dhcpcd Not tainted 6.11.0-rc4-syzkaller-00069-gfc88bb11617\u003e\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024\nRIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503\nCode: 84 3c 02 00 00 e8 05 e4 fc fc 4c 89 ef e8 fd 25 d7 fe 45 89 e0 89 e9 4c 89 f2 48 8\u003e\nRSP: 0018:ffffc9000441f740 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: ffff888112487a00 RCX: ffffffff811a99a9\nRDX: ffff88810df6ba80 RSI: ffffffff811a99b6 RDI: 0000000000000001\nRBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001\nR13: ffff8881023bf0a8 R14: ffff888112452a20 R15: ffff888112487a7c\nFS:  00007fc04eea5740(0000) GS:ffff8881f6300000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f0a1de9f870 CR3: 000000010dbd0000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n rtl8150_open+0x300/0xe30 drivers/net/usb/rtl8150.c:733\n __dev_open+0x2d4/0x4e0 net/core/dev.c:1474\n __dev_change_flags+0x561/0x720 net/core/dev.c:8838\n dev_change_flags+0x8f/0x160 net/core/dev.c:8910\n devinet_ioctl+0x127a/0x1f10 net/ipv4/devinet.c:1177\n inet_ioctl+0x3aa/0x3f0 net/ipv4/af_inet.c:1003\n sock_do_ioctl+0x116/0x280 net/socket.c:1222\n sock_ioctl+0x22e/0x6c0 net/socket.c:1341\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl fs/ioctl.c:893 [inline]\n __x64_sys_ioctl+0x193/0x220 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7fc04ef73d49\n...\n\nThis change has not been tested on real hardware.","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":"net: usb: rtl8150: enable basic endpoint checking","id":"CVE-2025-21708","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2025"},"n_packages":0,"n_references":8,"next":{"headline":"kernel: be more careful about dup_mmap() failures and uprobe registering","id":"CVE-2025-21709"},"packages":[],"prev":{"headline":"mptcp: consolidate suboption status","id":"CVE-2025-21707"},"products":["Linux"],"published":"2025-02-27","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A missing endpoint type check in the Linux kernel rtl8150 USB driver allows a local attacker to trigger a kernel warning and potential denial of service.","url":"https://insights.sbomify.com/CVE-2025-21708/"}